diff --git a/examples/streamlineMe/yieldMe.html b/examples/streamlineMe/yieldMe.html
index 7805e890..53a90959 100644
--- a/examples/streamlineMe/yieldMe.html
+++ b/examples/streamlineMe/yieldMe.html
@@ -5,17 +5,7 @@
-
-
-
-
-
-
-
-
-
-
-
+
diff --git a/lib/compiler/build.sh b/lib/compiler/build.sh
index 3bff424e..e63315c6 100755
--- a/lib/compiler/build.sh
+++ b/lib/compiler/build.sh
@@ -46,4 +46,16 @@ cat lib/callbacks/require-stub.js \
lib/callbacks/runtime.js \
lib/callbacks/builtins.js | sed -e "s/\/\/\/ \!doc//" > lib/transform-all.js
+cat lib/generators/require-stub.js \
+ node_modules/esprima/esprima.js \
+ node_modules/galaxy/lib/galaxy.js \
+ lib/callbacks/escodegen-browser.js \
+ lib/version.js \
+ lib/util/source-map.js \
+ lib/fibers/walker.js \
+ lib/generators/transform.js \
+ lib/util/future.js \
+ lib/generators/runtime.js \
+ lib/generators/builtins.js | sed -e "s/\/\/\/ \!doc//" > lib/transform-all-generators.js
+
popd > /dev/null
diff --git a/lib/transform-all-generators.js b/lib/transform-all-generators.js
new file mode 100644
index 00000000..36877e58
--- /dev/null
+++ b/lib/transform-all-generators.js
@@ -0,0 +1,9757 @@
+if (!Object.create || !Object.defineProperty || !Object.defineProperties) alert("Example will fail because your browser does not support ECMAScript 5. Try with another browser!");
+var __filename = "" + window.location;
+
+window.Streamline = { globals: {} };
+
+function require(str) {
+ if (/^\.\.\//.test(str)) str = "streamline/lib" + str.substring(2);
+ if (str == "streamline/lib/util/flows") return Streamline.flows;
+ else if (str == "streamline/lib/globals") return Streamline.globals;
+ else if (str == "streamline/lib/version") return Streamline.version;
+ else if (str == "streamline/lib/fibers/walker") return Streamline.walker;
+ else if (str == "streamline/lib/generators/runtime") return Streamline.runtime;
+ else if (str == "streamline/lib/generators/transform") return Streamline;
+ else if (str == "streamline/lib/generators/builtins") return Streamline.builtins;
+ else if (str == "streamline/lib/util/future") return Streamline.future;
+ else if (str == "galaxy") return galaxy;
+ else if (str == "galaxy-stack") return null;
+ else alert("cannot require " + str)
+}
+/*
+ Copyright (C) 2013 Ariya Hidayat
+ Copyright (C) 2013 Thaddee Tyl
+ Copyright (C) 2013 Mathias Bynens
+ Copyright (C) 2012 Ariya Hidayat
+ Copyright (C) 2012 Mathias Bynens
+ Copyright (C) 2012 Joost-Wim Boekesteijn
+ Copyright (C) 2012 Kris Kowal
+ Copyright (C) 2012 Yusuke Suzuki
+ Copyright (C) 2012 Arpad Borsos
+ Copyright (C) 2011 Ariya Hidayat
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+(function (root, factory) {
+ 'use strict';
+
+ // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
+ // Rhino, and plain browser loading.
+
+ /* istanbul ignore next */
+ if (typeof define === 'function' && define.amd) {
+ define(['exports'], factory);
+ } else if (typeof exports !== 'undefined') {
+ factory(exports);
+ } else {
+ factory((root.esprima = {}));
+ }
+}(this, function (exports) {
+ 'use strict';
+
+ var Token,
+ TokenName,
+ FnExprTokens,
+ Syntax,
+ PlaceHolders,
+ PropertyKind,
+ Messages,
+ Regex,
+ source,
+ strict,
+ index,
+ lineNumber,
+ lineStart,
+ length,
+ lookahead,
+ state,
+ extra;
+
+ Token = {
+ BooleanLiteral: 1,
+ EOF: 2,
+ Identifier: 3,
+ Keyword: 4,
+ NullLiteral: 5,
+ NumericLiteral: 6,
+ Punctuator: 7,
+ StringLiteral: 8,
+ RegularExpression: 9
+ };
+
+ TokenName = {};
+ TokenName[Token.BooleanLiteral] = 'Boolean';
+ TokenName[Token.EOF] = '';
+ TokenName[Token.Identifier] = 'Identifier';
+ TokenName[Token.Keyword] = 'Keyword';
+ TokenName[Token.NullLiteral] = 'Null';
+ TokenName[Token.NumericLiteral] = 'Numeric';
+ TokenName[Token.Punctuator] = 'Punctuator';
+ TokenName[Token.StringLiteral] = 'String';
+ TokenName[Token.RegularExpression] = 'RegularExpression';
+
+ // A function following one of those tokens is an expression.
+ FnExprTokens = ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
+ 'return', 'case', 'delete', 'throw', 'void',
+ // assignment operators
+ '=', '+=', '-=', '*=', '/=', '%=', '<<=', '>>=', '>>>=',
+ '&=', '|=', '^=', ',',
+ // binary/unary operators
+ '+', '-', '*', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
+ '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
+ '<=', '<', '>', '!=', '!=='];
+
+ Syntax = {
+ AssignmentExpression: 'AssignmentExpression',
+ ArrayExpression: 'ArrayExpression',
+ ArrowFunctionExpression: 'ArrowFunctionExpression',
+ BlockStatement: 'BlockStatement',
+ BinaryExpression: 'BinaryExpression',
+ BreakStatement: 'BreakStatement',
+ CallExpression: 'CallExpression',
+ CatchClause: 'CatchClause',
+ ConditionalExpression: 'ConditionalExpression',
+ ContinueStatement: 'ContinueStatement',
+ DoWhileStatement: 'DoWhileStatement',
+ DebuggerStatement: 'DebuggerStatement',
+ EmptyStatement: 'EmptyStatement',
+ ExpressionStatement: 'ExpressionStatement',
+ ForStatement: 'ForStatement',
+ ForInStatement: 'ForInStatement',
+ FunctionDeclaration: 'FunctionDeclaration',
+ FunctionExpression: 'FunctionExpression',
+ Identifier: 'Identifier',
+ IfStatement: 'IfStatement',
+ Literal: 'Literal',
+ LabeledStatement: 'LabeledStatement',
+ LogicalExpression: 'LogicalExpression',
+ MemberExpression: 'MemberExpression',
+ NewExpression: 'NewExpression',
+ ObjectExpression: 'ObjectExpression',
+ Program: 'Program',
+ Property: 'Property',
+ ReturnStatement: 'ReturnStatement',
+ SequenceExpression: 'SequenceExpression',
+ SwitchStatement: 'SwitchStatement',
+ SwitchCase: 'SwitchCase',
+ ThisExpression: 'ThisExpression',
+ ThrowStatement: 'ThrowStatement',
+ TryStatement: 'TryStatement',
+ UnaryExpression: 'UnaryExpression',
+ UpdateExpression: 'UpdateExpression',
+ VariableDeclaration: 'VariableDeclaration',
+ VariableDeclarator: 'VariableDeclarator',
+ WhileStatement: 'WhileStatement',
+ WithStatement: 'WithStatement'
+ };
+
+ PlaceHolders = {
+ ArrowParameterPlaceHolder: {
+ type: 'ArrowParameterPlaceHolder'
+ }
+ };
+
+ PropertyKind = {
+ Data: 1,
+ Get: 2,
+ Set: 4
+ };
+
+ // Error messages should be identical to V8.
+ Messages = {
+ UnexpectedToken: 'Unexpected token %0',
+ UnexpectedNumber: 'Unexpected number',
+ UnexpectedString: 'Unexpected string',
+ UnexpectedIdentifier: 'Unexpected identifier',
+ UnexpectedReserved: 'Unexpected reserved word',
+ UnexpectedEOS: 'Unexpected end of input',
+ NewlineAfterThrow: 'Illegal newline after throw',
+ InvalidRegExp: 'Invalid regular expression',
+ UnterminatedRegExp: 'Invalid regular expression: missing /',
+ InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
+ InvalidLHSInForIn: 'Invalid left-hand side in for-in',
+ MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
+ NoCatchOrFinally: 'Missing catch or finally after try',
+ UnknownLabel: 'Undefined label \'%0\'',
+ Redeclaration: '%0 \'%1\' has already been declared',
+ IllegalContinue: 'Illegal continue statement',
+ IllegalBreak: 'Illegal break statement',
+ IllegalReturn: 'Illegal return statement',
+ StrictModeWith: 'Strict mode code may not include a with statement',
+ StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
+ StrictVarName: 'Variable name may not be eval or arguments in strict mode',
+ StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
+ StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
+ StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
+ StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
+ StrictDelete: 'Delete of an unqualified identifier in strict mode.',
+ StrictDuplicateProperty: 'Duplicate data property in object literal not allowed in strict mode',
+ AccessorDataProperty: 'Object literal may not have data and accessor property with the same name',
+ AccessorGetSet: 'Object literal may not have multiple get/set accessors with the same name',
+ StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
+ StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
+ StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
+ StrictReservedWord: 'Use of future reserved word in strict mode'
+ };
+
+ // See also tools/generate-unicode-regex.py.
+ Regex = {
+ NonAsciiIdentifierStart: new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B2\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]'),
+ NonAsciiIdentifierPart: new 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\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]')
+ };
+
+ // Ensure the condition is true, otherwise throw an error.
+ // This is only to have a better contract semantic, i.e. another safety net
+ // to catch a logic error. The condition shall be fulfilled in normal case.
+ // Do NOT use this to enforce a certain condition on any user input.
+
+ function assert(condition, message) {
+ /* istanbul ignore if */
+ if (!condition) {
+ throw new Error('ASSERT: ' + message);
+ }
+ }
+
+ function isDecimalDigit(ch) {
+ return (ch >= 0x30 && ch <= 0x39); // 0..9
+ }
+
+ function isHexDigit(ch) {
+ return '0123456789abcdefABCDEF'.indexOf(ch) >= 0;
+ }
+
+ function isOctalDigit(ch) {
+ return '01234567'.indexOf(ch) >= 0;
+ }
+
+
+ // 7.2 White Space
+
+ function isWhiteSpace(ch) {
+ return (ch === 0x20) || (ch === 0x09) || (ch === 0x0B) || (ch === 0x0C) || (ch === 0xA0) ||
+ (ch >= 0x1680 && [0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(ch) >= 0);
+ }
+
+ // 7.3 Line Terminators
+
+ function isLineTerminator(ch) {
+ return (ch === 0x0A) || (ch === 0x0D) || (ch === 0x2028) || (ch === 0x2029);
+ }
+
+ // 7.6 Identifier Names and Identifiers
+
+ function isIdentifierStart(ch) {
+ return (ch === 0x24) || (ch === 0x5F) || // $ (dollar) and _ (underscore)
+ (ch >= 0x41 && ch <= 0x5A) || // A..Z
+ (ch >= 0x61 && ch <= 0x7A) || // a..z
+ (ch === 0x5C) || // \ (backslash)
+ ((ch >= 0x80) && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch)));
+ }
+
+ function isIdentifierPart(ch) {
+ return (ch === 0x24) || (ch === 0x5F) || // $ (dollar) and _ (underscore)
+ (ch >= 0x41 && ch <= 0x5A) || // A..Z
+ (ch >= 0x61 && ch <= 0x7A) || // a..z
+ (ch >= 0x30 && ch <= 0x39) || // 0..9
+ (ch === 0x5C) || // \ (backslash)
+ ((ch >= 0x80) && Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch)));
+ }
+
+ // 7.6.1.2 Future Reserved Words
+
+ function isFutureReservedWord(id) {
+ switch (id) {
+ case 'class':
+ case 'enum':
+ case 'export':
+ case 'extends':
+ case 'import':
+ case 'super':
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ function isStrictModeReservedWord(id) {
+ switch (id) {
+ case 'implements':
+ case 'interface':
+ case 'package':
+ case 'private':
+ case 'protected':
+ case 'public':
+ case 'static':
+ case 'yield':
+ case 'let':
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ function isRestrictedWord(id) {
+ return id === 'eval' || id === 'arguments';
+ }
+
+ // 7.6.1.1 Keywords
+
+ function isKeyword(id) {
+ if (strict && isStrictModeReservedWord(id)) {
+ return true;
+ }
+
+ // 'const' is specialized as Keyword in V8.
+ // 'yield' and 'let' are for compatibility with SpiderMonkey and ES.next.
+ // Some others are from future reserved words.
+
+ switch (id.length) {
+ case 2:
+ return (id === 'if') || (id === 'in') || (id === 'do');
+ case 3:
+ return (id === 'var') || (id === 'for') || (id === 'new') ||
+ (id === 'try') || (id === 'let');
+ case 4:
+ return (id === 'this') || (id === 'else') || (id === 'case') ||
+ (id === 'void') || (id === 'with') || (id === 'enum');
+ case 5:
+ return (id === 'while') || (id === 'break') || (id === 'catch') ||
+ (id === 'throw') || (id === 'const') || (id === 'yield') ||
+ (id === 'class') || (id === 'super');
+ case 6:
+ return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
+ (id === 'switch') || (id === 'export') || (id === 'import');
+ case 7:
+ return (id === 'default') || (id === 'finally') || (id === 'extends');
+ case 8:
+ return (id === 'function') || (id === 'continue') || (id === 'debugger');
+ case 10:
+ return (id === 'instanceof');
+ default:
+ return false;
+ }
+ }
+
+ // 7.4 Comments
+
+ function addComment(type, value, start, end, loc) {
+ var comment;
+
+ assert(typeof start === 'number', 'Comment must have valid position');
+
+ // Because the way the actual token is scanned, often the comments
+ // (if any) are skipped twice during the lexical analysis.
+ // Thus, we need to skip adding a comment if the comment array already
+ // handled it.
+ if (state.lastCommentStart >= start) {
+ return;
+ }
+ state.lastCommentStart = start;
+
+ comment = {
+ type: type,
+ value: value
+ };
+ if (extra.range) {
+ comment.range = [start, end];
+ }
+ if (extra.loc) {
+ comment.loc = loc;
+ }
+ extra.comments.push(comment);
+ if (extra.attachComment) {
+ extra.leadingComments.push(comment);
+ extra.trailingComments.push(comment);
+ }
+ }
+
+ function skipSingleLineComment(offset) {
+ var start, loc, ch, comment;
+
+ start = index - offset;
+ loc = {
+ start: {
+ line: lineNumber,
+ column: index - lineStart - offset
+ }
+ };
+
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ ++index;
+ if (isLineTerminator(ch)) {
+ if (extra.comments) {
+ comment = source.slice(start + offset, index - 1);
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart - 1
+ };
+ addComment('Line', comment, start, index - 1, loc);
+ }
+ if (ch === 13 && source.charCodeAt(index) === 10) {
+ ++index;
+ }
+ ++lineNumber;
+ lineStart = index;
+ return;
+ }
+ }
+
+ if (extra.comments) {
+ comment = source.slice(start + offset, index);
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart
+ };
+ addComment('Line', comment, start, index, loc);
+ }
+ }
+
+ function skipMultiLineComment() {
+ var start, loc, ch, comment;
+
+ if (extra.comments) {
+ start = index - 2;
+ loc = {
+ start: {
+ line: lineNumber,
+ column: index - lineStart - 2
+ }
+ };
+ }
+
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ if (isLineTerminator(ch)) {
+ if (ch === 0x0D && source.charCodeAt(index + 1) === 0x0A) {
+ ++index;
+ }
+ ++lineNumber;
+ ++index;
+ lineStart = index;
+ if (index >= length) {
+ throwUnexpectedToken();
+ }
+ } else if (ch === 0x2A) {
+ // Block comment ends with '*/'.
+ if (source.charCodeAt(index + 1) === 0x2F) {
+ ++index;
+ ++index;
+ if (extra.comments) {
+ comment = source.slice(start + 2, index - 2);
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart
+ };
+ addComment('Block', comment, start, index, loc);
+ }
+ return;
+ }
+ ++index;
+ } else {
+ ++index;
+ }
+ }
+
+ throwUnexpectedToken();
+ }
+
+ function skipComment() {
+ var ch, start;
+
+ start = (index === 0);
+ while (index < length) {
+ ch = source.charCodeAt(index);
+
+ if (isWhiteSpace(ch)) {
+ ++index;
+ } else if (isLineTerminator(ch)) {
+ ++index;
+ if (ch === 0x0D && source.charCodeAt(index) === 0x0A) {
+ ++index;
+ }
+ ++lineNumber;
+ lineStart = index;
+ start = true;
+ } else if (ch === 0x2F) { // U+002F is '/'
+ ch = source.charCodeAt(index + 1);
+ if (ch === 0x2F) {
+ ++index;
+ ++index;
+ skipSingleLineComment(2);
+ start = true;
+ } else if (ch === 0x2A) { // U+002A is '*'
+ ++index;
+ ++index;
+ skipMultiLineComment();
+ } else {
+ break;
+ }
+ } else if (start && ch === 0x2D) { // U+002D is '-'
+ // U+003E is '>'
+ if ((source.charCodeAt(index + 1) === 0x2D) && (source.charCodeAt(index + 2) === 0x3E)) {
+ // '-->' is a single-line comment
+ index += 3;
+ skipSingleLineComment(3);
+ } else {
+ break;
+ }
+ } else if (ch === 0x3C) { // U+003C is '<'
+ if (source.slice(index + 1, index + 4) === '!--') {
+ ++index; // `<`
+ ++index; // `!`
+ ++index; // `-`
+ ++index; // `-`
+ skipSingleLineComment(4);
+ } else {
+ break;
+ }
+ } else {
+ break;
+ }
+ }
+ }
+
+ function scanHexEscape(prefix) {
+ var i, len, ch, code = 0;
+
+ len = (prefix === 'u') ? 4 : 2;
+ for (i = 0; i < len; ++i) {
+ if (index < length && isHexDigit(source[index])) {
+ ch = source[index++];
+ code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
+ } else {
+ return '';
+ }
+ }
+ return String.fromCharCode(code);
+ }
+
+ function scanUnicodeCodePointEscape() {
+ var ch, code, cu1, cu2;
+
+ ch = source[index];
+ code = 0;
+
+ // At least, one hex digit is required.
+ if (ch === '}') {
+ throwUnexpectedToken();
+ }
+
+ while (index < length) {
+ ch = source[index++];
+ if (!isHexDigit(ch)) {
+ break;
+ }
+ code = code * 16 + '0123456789abcdef'.indexOf(ch.toLowerCase());
+ }
+
+ if (code > 0x10FFFF || ch !== '}') {
+ throwUnexpectedToken();
+ }
+
+ // UTF-16 Encoding
+ if (code <= 0xFFFF) {
+ return String.fromCharCode(code);
+ }
+ cu1 = ((code - 0x10000) >> 10) + 0xD800;
+ cu2 = ((code - 0x10000) & 1023) + 0xDC00;
+ return String.fromCharCode(cu1, cu2);
+ }
+
+ function getEscapedIdentifier() {
+ var ch, id;
+
+ ch = source.charCodeAt(index++);
+ id = String.fromCharCode(ch);
+
+ // '\u' (U+005C, U+0075) denotes an escaped character.
+ if (ch === 0x5C) {
+ if (source.charCodeAt(index) !== 0x75) {
+ throwUnexpectedToken();
+ }
+ ++index;
+ ch = scanHexEscape('u');
+ if (!ch || ch === '\\' || !isIdentifierStart(ch.charCodeAt(0))) {
+ throwUnexpectedToken();
+ }
+ id = ch;
+ }
+
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ if (!isIdentifierPart(ch)) {
+ break;
+ }
+ ++index;
+ id += String.fromCharCode(ch);
+
+ // '\u' (U+005C, U+0075) denotes an escaped character.
+ if (ch === 0x5C) {
+ id = id.substr(0, id.length - 1);
+ if (source.charCodeAt(index) !== 0x75) {
+ throwUnexpectedToken();
+ }
+ ++index;
+ ch = scanHexEscape('u');
+ if (!ch || ch === '\\' || !isIdentifierPart(ch.charCodeAt(0))) {
+ throwUnexpectedToken();
+ }
+ id += ch;
+ }
+ }
+
+ return id;
+ }
+
+ function getIdentifier() {
+ var start, ch;
+
+ start = index++;
+ while (index < length) {
+ ch = source.charCodeAt(index);
+ if (ch === 0x5C) {
+ // Blackslash (U+005C) marks Unicode escape sequence.
+ index = start;
+ return getEscapedIdentifier();
+ }
+ if (isIdentifierPart(ch)) {
+ ++index;
+ } else {
+ break;
+ }
+ }
+
+ return source.slice(start, index);
+ }
+
+ function scanIdentifier() {
+ var start, id, type;
+
+ start = index;
+
+ // Backslash (U+005C) starts an escaped character.
+ id = (source.charCodeAt(index) === 0x5C) ? getEscapedIdentifier() : getIdentifier();
+
+ // There is no keyword or literal with only one character.
+ // Thus, it must be an identifier.
+ if (id.length === 1) {
+ type = Token.Identifier;
+ } else if (isKeyword(id)) {
+ type = Token.Keyword;
+ } else if (id === 'null') {
+ type = Token.NullLiteral;
+ } else if (id === 'true' || id === 'false') {
+ type = Token.BooleanLiteral;
+ } else {
+ type = Token.Identifier;
+ }
+
+ return {
+ type: type,
+ value: id,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+
+ // 7.7 Punctuators
+
+ function scanPunctuator() {
+ var start = index,
+ code = source.charCodeAt(index),
+ code2,
+ ch1 = source[index],
+ ch2,
+ ch3,
+ ch4;
+
+ switch (code) {
+
+ // Check for most common single-character punctuators.
+ case 0x2E: // . dot
+ case 0x28: // ( open bracket
+ case 0x29: // ) close bracket
+ case 0x3B: // ; semicolon
+ case 0x2C: // , comma
+ case 0x7B: // { open curly brace
+ case 0x7D: // } close curly brace
+ case 0x5B: // [
+ case 0x5D: // ]
+ case 0x3A: // :
+ case 0x3F: // ?
+ case 0x7E: // ~
+ ++index;
+ if (extra.tokenize) {
+ if (code === 0x28) {
+ extra.openParenToken = extra.tokens.length;
+ } else if (code === 0x7B) {
+ extra.openCurlyToken = extra.tokens.length;
+ }
+ }
+ return {
+ type: Token.Punctuator,
+ value: String.fromCharCode(code),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+
+ default:
+ code2 = source.charCodeAt(index + 1);
+
+ // '=' (U+003D) marks an assignment or comparison operator.
+ if (code2 === 0x3D) {
+ switch (code) {
+ case 0x2B: // +
+ case 0x2D: // -
+ case 0x2F: // /
+ case 0x3C: // <
+ case 0x3E: // >
+ case 0x5E: // ^
+ case 0x7C: // |
+ case 0x25: // %
+ case 0x26: // &
+ case 0x2A: // *
+ index += 2;
+ return {
+ type: Token.Punctuator,
+ value: String.fromCharCode(code) + String.fromCharCode(code2),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+
+ case 0x21: // !
+ case 0x3D: // =
+ index += 2;
+
+ // !== and ===
+ if (source.charCodeAt(index) === 0x3D) {
+ ++index;
+ }
+ return {
+ type: Token.Punctuator,
+ value: source.slice(start, index),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+ }
+ }
+
+ // 4-character punctuator: >>>=
+
+ ch4 = source.substr(index, 4);
+
+ if (ch4 === '>>>=') {
+ index += 4;
+ return {
+ type: Token.Punctuator,
+ value: ch4,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ // 3-character punctuators: === !== >>> <<= >>=
+
+ ch3 = ch4.substr(0, 3);
+
+ if (ch3 === '>>>' || ch3 === '<<=' || ch3 === '>>=') {
+ index += 3;
+ return {
+ type: Token.Punctuator,
+ value: ch3,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ // Other 2-character punctuators: ++ -- << >> && ||
+ ch2 = ch3.substr(0, 2);
+
+ if ((ch1 === ch2[1] && ('+-<>&|'.indexOf(ch1) >= 0)) || ch2 === '=>') {
+ index += 2;
+ return {
+ type: Token.Punctuator,
+ value: ch2,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ // 1-character punctuators: < > = ! + - * % & | ^ /
+
+ if ('<>=!+-*%&|^/'.indexOf(ch1) >= 0) {
+ ++index;
+ return {
+ type: Token.Punctuator,
+ value: ch1,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ throwUnexpectedToken();
+ }
+
+ // 7.8.3 Numeric Literals
+
+ function scanHexLiteral(start) {
+ var number = '';
+
+ while (index < length) {
+ if (!isHexDigit(source[index])) {
+ break;
+ }
+ number += source[index++];
+ }
+
+ if (number.length === 0) {
+ throwUnexpectedToken();
+ }
+
+ if (isIdentifierStart(source.charCodeAt(index))) {
+ throwUnexpectedToken();
+ }
+
+ return {
+ type: Token.NumericLiteral,
+ value: parseInt('0x' + number, 16),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ function scanBinaryLiteral(start) {
+ var ch, number;
+
+ number = '';
+
+ while (index < length) {
+ ch = source[index];
+ if (ch !== '0' && ch !== '1') {
+ break;
+ }
+ number += source[index++];
+ }
+
+ if (number.length === 0) {
+ // only 0b or 0B
+ throwUnexpectedToken();
+ }
+
+ if (index < length) {
+ ch = source.charCodeAt(index);
+ /* istanbul ignore else */
+ if (isIdentifierStart(ch) || isDecimalDigit(ch)) {
+ throwUnexpectedToken();
+ }
+ }
+
+ return {
+ type: Token.NumericLiteral,
+ value: parseInt(number, 2),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ function scanOctalLiteral(prefix, start) {
+ var number, octal;
+
+ if (isOctalDigit(prefix)) {
+ octal = true;
+ number = '0' + source[index++];
+ } else {
+ octal = false;
+ ++index;
+ number = '';
+ }
+
+ while (index < length) {
+ if (!isOctalDigit(source[index])) {
+ break;
+ }
+ number += source[index++];
+ }
+
+ if (!octal && number.length === 0) {
+ // only 0o or 0O
+ throwUnexpectedToken();
+ }
+
+ if (isIdentifierStart(source.charCodeAt(index)) || isDecimalDigit(source.charCodeAt(index))) {
+ throwUnexpectedToken();
+ }
+
+ return {
+ type: Token.NumericLiteral,
+ value: parseInt(number, 8),
+ octal: octal,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ function isImplicitOctalLiteral() {
+ var i, ch;
+
+ // Implicit octal, unless there is a non-octal digit.
+ // (Annex B.1.1 on Numeric Literals)
+ for (i = index + 1; i < length; ++i) {
+ ch = source[i];
+ if (ch === '8' || ch === '9') {
+ return false;
+ }
+ if (!isOctalDigit(ch)) {
+ return true;
+ }
+ }
+
+ return true;
+ }
+
+ function scanNumericLiteral() {
+ var number, start, ch;
+
+ ch = source[index];
+ assert(isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'),
+ 'Numeric literal must start with a decimal digit or a decimal point');
+
+ start = index;
+ number = '';
+ if (ch !== '.') {
+ number = source[index++];
+ ch = source[index];
+
+ // Hex number starts with '0x'.
+ // Octal number starts with '0'.
+ // Octal number in ES6 starts with '0o'.
+ // Binary number in ES6 starts with '0b'.
+ if (number === '0') {
+ if (ch === 'x' || ch === 'X') {
+ ++index;
+ return scanHexLiteral(start);
+ }
+ if (ch === 'b' || ch === 'B') {
+ ++index;
+ return scanBinaryLiteral(start);
+ }
+ if (ch === 'o' || ch === 'O') {
+ return scanOctalLiteral(ch, start);
+ }
+
+ if (isOctalDigit(ch)) {
+ if (isImplicitOctalLiteral()) {
+ return scanOctalLiteral(ch, start);
+ }
+ }
+ }
+
+ while (isDecimalDigit(source.charCodeAt(index))) {
+ number += source[index++];
+ }
+ ch = source[index];
+ }
+
+ if (ch === '.') {
+ number += source[index++];
+ while (isDecimalDigit(source.charCodeAt(index))) {
+ number += source[index++];
+ }
+ ch = source[index];
+ }
+
+ if (ch === 'e' || ch === 'E') {
+ number += source[index++];
+
+ ch = source[index];
+ if (ch === '+' || ch === '-') {
+ number += source[index++];
+ }
+ if (isDecimalDigit(source.charCodeAt(index))) {
+ while (isDecimalDigit(source.charCodeAt(index))) {
+ number += source[index++];
+ }
+ } else {
+ throwUnexpectedToken();
+ }
+ }
+
+ if (isIdentifierStart(source.charCodeAt(index))) {
+ throwUnexpectedToken();
+ }
+
+ return {
+ type: Token.NumericLiteral,
+ value: parseFloat(number),
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ // 7.8.4 String Literals
+
+ function scanStringLiteral() {
+ var str = '', quote, start, ch, code, unescaped, restore, octal = false, startLineNumber, startLineStart;
+ startLineNumber = lineNumber;
+ startLineStart = lineStart;
+
+ quote = source[index];
+ assert((quote === '\'' || quote === '"'),
+ 'String literal must starts with a quote');
+
+ start = index;
+ ++index;
+
+ while (index < length) {
+ ch = source[index++];
+
+ if (ch === quote) {
+ quote = '';
+ break;
+ } else if (ch === '\\') {
+ ch = source[index++];
+ if (!ch || !isLineTerminator(ch.charCodeAt(0))) {
+ switch (ch) {
+ case 'u':
+ case 'x':
+ if (source[index] === '{') {
+ ++index;
+ str += scanUnicodeCodePointEscape();
+ } else {
+ restore = index;
+ unescaped = scanHexEscape(ch);
+ if (unescaped) {
+ str += unescaped;
+ } else {
+ index = restore;
+ str += ch;
+ }
+ }
+ break;
+ case 'n':
+ str += '\n';
+ break;
+ case 'r':
+ str += '\r';
+ break;
+ case 't':
+ str += '\t';
+ break;
+ case 'b':
+ str += '\b';
+ break;
+ case 'f':
+ str += '\f';
+ break;
+ case 'v':
+ str += '\x0B';
+ break;
+
+ default:
+ if (isOctalDigit(ch)) {
+ code = '01234567'.indexOf(ch);
+
+ // \0 is not octal escape sequence
+ if (code !== 0) {
+ octal = true;
+ }
+
+ if (index < length && isOctalDigit(source[index])) {
+ octal = true;
+ code = code * 8 + '01234567'.indexOf(source[index++]);
+
+ // 3 digits are only allowed when string starts
+ // with 0, 1, 2, 3
+ if ('0123'.indexOf(ch) >= 0 &&
+ index < length &&
+ isOctalDigit(source[index])) {
+ code = code * 8 + '01234567'.indexOf(source[index++]);
+ }
+ }
+ str += String.fromCharCode(code);
+ } else {
+ str += ch;
+ }
+ break;
+ }
+ } else {
+ ++lineNumber;
+ if (ch === '\r' && source[index] === '\n') {
+ ++index;
+ }
+ lineStart = index;
+ }
+ } else if (isLineTerminator(ch.charCodeAt(0))) {
+ break;
+ } else {
+ str += ch;
+ }
+ }
+
+ if (quote !== '') {
+ throwUnexpectedToken();
+ }
+
+ return {
+ type: Token.StringLiteral,
+ value: str,
+ octal: octal,
+ startLineNumber: startLineNumber,
+ startLineStart: startLineStart,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ function testRegExp(pattern, flags) {
+ var tmp = pattern,
+ value;
+
+ if (flags.indexOf('u') >= 0) {
+ // Replace each astral symbol and every Unicode code point
+ // escape sequence with a single ASCII symbol to avoid throwing on
+ // regular expressions that are only valid in combination with the
+ // `/u` flag.
+ // Note: replacing with the ASCII symbol `x` might cause false
+ // negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
+ // perfectly valid pattern that is equivalent to `[a-b]`, but it
+ // would be replaced by `[x-b]` which throws an error.
+ tmp = tmp
+ .replace(/\\u\{([0-9a-fA-F]+)\}/g, function ($0, $1) {
+ if (parseInt($1, 16) <= 0x10FFFF) {
+ return 'x';
+ }
+ throwError(Messages.InvalidRegExp);
+ })
+ .replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, 'x');
+ }
+
+ // First, detect invalid regular expressions.
+ try {
+ value = new RegExp(tmp);
+ } catch (e) {
+ throwError(Messages.InvalidRegExp);
+ }
+
+ // Return a regular expression object for this pattern-flag pair, or
+ // `null` in case the current environment doesn't support the flags it
+ // uses.
+ try {
+ return new RegExp(pattern, flags);
+ } catch (exception) {
+ return null;
+ }
+ }
+
+ function scanRegExpBody() {
+ var ch, str, classMarker, terminated, body;
+
+ ch = source[index];
+ assert(ch === '/', 'Regular expression literal must start with a slash');
+ str = source[index++];
+
+ classMarker = false;
+ terminated = false;
+ while (index < length) {
+ ch = source[index++];
+ str += ch;
+ if (ch === '\\') {
+ ch = source[index++];
+ // ECMA-262 7.8.5
+ if (isLineTerminator(ch.charCodeAt(0))) {
+ throwError(Messages.UnterminatedRegExp);
+ }
+ str += ch;
+ } else if (isLineTerminator(ch.charCodeAt(0))) {
+ throwError(Messages.UnterminatedRegExp);
+ } else if (classMarker) {
+ if (ch === ']') {
+ classMarker = false;
+ }
+ } else {
+ if (ch === '/') {
+ terminated = true;
+ break;
+ } else if (ch === '[') {
+ classMarker = true;
+ }
+ }
+ }
+
+ if (!terminated) {
+ throwError(Messages.UnterminatedRegExp);
+ }
+
+ // Exclude leading and trailing slash.
+ body = str.substr(1, str.length - 2);
+ return {
+ value: body,
+ literal: str
+ };
+ }
+
+ function scanRegExpFlags() {
+ var ch, str, flags, restore;
+
+ str = '';
+ flags = '';
+ while (index < length) {
+ ch = source[index];
+ if (!isIdentifierPart(ch.charCodeAt(0))) {
+ break;
+ }
+
+ ++index;
+ if (ch === '\\' && index < length) {
+ ch = source[index];
+ if (ch === 'u') {
+ ++index;
+ restore = index;
+ ch = scanHexEscape('u');
+ if (ch) {
+ flags += ch;
+ for (str += '\\u'; restore < index; ++restore) {
+ str += source[restore];
+ }
+ } else {
+ index = restore;
+ flags += 'u';
+ str += '\\u';
+ }
+ tolerateUnexpectedToken();
+ } else {
+ str += '\\';
+ tolerateUnexpectedToken();
+ }
+ } else {
+ flags += ch;
+ str += ch;
+ }
+ }
+
+ return {
+ value: flags,
+ literal: str
+ };
+ }
+
+ function scanRegExp() {
+ var start, body, flags, value;
+
+ lookahead = null;
+ skipComment();
+ start = index;
+
+ body = scanRegExpBody();
+ flags = scanRegExpFlags();
+ value = testRegExp(body.value, flags.value);
+
+ if (extra.tokenize) {
+ return {
+ type: Token.RegularExpression,
+ value: value,
+ regex: {
+ pattern: body.value,
+ flags: flags.value
+ },
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: start,
+ end: index
+ };
+ }
+
+ return {
+ literal: body.literal + flags.literal,
+ value: value,
+ regex: {
+ pattern: body.value,
+ flags: flags.value
+ },
+ start: start,
+ end: index
+ };
+ }
+
+ function collectRegex() {
+ var pos, loc, regex, token;
+
+ skipComment();
+
+ pos = index;
+ loc = {
+ start: {
+ line: lineNumber,
+ column: index - lineStart
+ }
+ };
+
+ regex = scanRegExp();
+
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart
+ };
+
+ /* istanbul ignore next */
+ if (!extra.tokenize) {
+ // Pop the previous token, which is likely '/' or '/='
+ if (extra.tokens.length > 0) {
+ token = extra.tokens[extra.tokens.length - 1];
+ if (token.range[0] === pos && token.type === 'Punctuator') {
+ if (token.value === '/' || token.value === '/=') {
+ extra.tokens.pop();
+ }
+ }
+ }
+
+ extra.tokens.push({
+ type: 'RegularExpression',
+ value: regex.literal,
+ regex: regex.regex,
+ range: [pos, index],
+ loc: loc
+ });
+ }
+
+ return regex;
+ }
+
+ function isIdentifierName(token) {
+ return token.type === Token.Identifier ||
+ token.type === Token.Keyword ||
+ token.type === Token.BooleanLiteral ||
+ token.type === Token.NullLiteral;
+ }
+
+ function advanceSlash() {
+ var prevToken,
+ checkToken;
+ // Using the following algorithm:
+ // https://github.com/mozilla/sweet.js/wiki/design
+ prevToken = extra.tokens[extra.tokens.length - 1];
+ if (!prevToken) {
+ // Nothing before that: it cannot be a division.
+ return collectRegex();
+ }
+ if (prevToken.type === 'Punctuator') {
+ if (prevToken.value === ']') {
+ return scanPunctuator();
+ }
+ if (prevToken.value === ')') {
+ checkToken = extra.tokens[extra.openParenToken - 1];
+ if (checkToken &&
+ checkToken.type === 'Keyword' &&
+ (checkToken.value === 'if' ||
+ checkToken.value === 'while' ||
+ checkToken.value === 'for' ||
+ checkToken.value === 'with')) {
+ return collectRegex();
+ }
+ return scanPunctuator();
+ }
+ if (prevToken.value === '}') {
+ // Dividing a function by anything makes little sense,
+ // but we have to check for that.
+ if (extra.tokens[extra.openCurlyToken - 3] &&
+ extra.tokens[extra.openCurlyToken - 3].type === 'Keyword') {
+ // Anonymous function.
+ checkToken = extra.tokens[extra.openCurlyToken - 4];
+ if (!checkToken) {
+ return scanPunctuator();
+ }
+ } else if (extra.tokens[extra.openCurlyToken - 4] &&
+ extra.tokens[extra.openCurlyToken - 4].type === 'Keyword') {
+ // Named function.
+ checkToken = extra.tokens[extra.openCurlyToken - 5];
+ if (!checkToken) {
+ return collectRegex();
+ }
+ } else {
+ return scanPunctuator();
+ }
+ // checkToken determines whether the function is
+ // a declaration or an expression.
+ if (FnExprTokens.indexOf(checkToken.value) >= 0) {
+ // It is an expression.
+ return scanPunctuator();
+ }
+ // It is a declaration.
+ return collectRegex();
+ }
+ return collectRegex();
+ }
+ if (prevToken.type === 'Keyword' && prevToken.value !== 'this') {
+ return collectRegex();
+ }
+ return scanPunctuator();
+ }
+
+ function advance() {
+ var ch;
+
+ skipComment();
+
+ if (index >= length) {
+ return {
+ type: Token.EOF,
+ lineNumber: lineNumber,
+ lineStart: lineStart,
+ start: index,
+ end: index
+ };
+ }
+
+ ch = source.charCodeAt(index);
+
+ if (isIdentifierStart(ch)) {
+ return scanIdentifier();
+ }
+
+ // Very common: ( and ) and ;
+ if (ch === 0x28 || ch === 0x29 || ch === 0x3B) {
+ return scanPunctuator();
+ }
+
+ // String literal starts with single quote (U+0027) or double quote (U+0022).
+ if (ch === 0x27 || ch === 0x22) {
+ return scanStringLiteral();
+ }
+
+
+ // Dot (.) U+002E can also start a floating-point number, hence the need
+ // to check the next character.
+ if (ch === 0x2E) {
+ if (isDecimalDigit(source.charCodeAt(index + 1))) {
+ return scanNumericLiteral();
+ }
+ return scanPunctuator();
+ }
+
+ if (isDecimalDigit(ch)) {
+ return scanNumericLiteral();
+ }
+
+ // Slash (/) U+002F can also start a regex.
+ if (extra.tokenize && ch === 0x2F) {
+ return advanceSlash();
+ }
+
+ return scanPunctuator();
+ }
+
+ function collectToken() {
+ var loc, token, value, entry;
+
+ skipComment();
+ loc = {
+ start: {
+ line: lineNumber,
+ column: index - lineStart
+ }
+ };
+
+ token = advance();
+ loc.end = {
+ line: lineNumber,
+ column: index - lineStart
+ };
+
+ if (token.type !== Token.EOF) {
+ value = source.slice(token.start, token.end);
+ entry = {
+ type: TokenName[token.type],
+ value: value,
+ range: [token.start, token.end],
+ loc: loc
+ };
+ if (token.regex) {
+ entry.regex = {
+ pattern: token.regex.pattern,
+ flags: token.regex.flags
+ };
+ }
+ extra.tokens.push(entry);
+ }
+
+ return token;
+ }
+
+ function lex() {
+ var token;
+
+ token = lookahead;
+ index = token.end;
+ lineNumber = token.lineNumber;
+ lineStart = token.lineStart;
+
+ lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance();
+
+ index = token.end;
+ lineNumber = token.lineNumber;
+ lineStart = token.lineStart;
+
+ return token;
+ }
+
+ function peek() {
+ var pos, line, start;
+
+ pos = index;
+ line = lineNumber;
+ start = lineStart;
+ lookahead = (typeof extra.tokens !== 'undefined') ? collectToken() : advance();
+ index = pos;
+ lineNumber = line;
+ lineStart = start;
+ }
+
+ function Position() {
+ this.line = lineNumber;
+ this.column = index - lineStart;
+ }
+
+ function SourceLocation() {
+ this.start = new Position();
+ this.end = null;
+ }
+
+ function WrappingSourceLocation(startToken) {
+ if (startToken.type === Token.StringLiteral) {
+ this.start = {
+ line: startToken.startLineNumber,
+ column: startToken.start - startToken.startLineStart
+ };
+ } else {
+ this.start = {
+ line: startToken.lineNumber,
+ column: startToken.start - startToken.lineStart
+ };
+ }
+ this.end = null;
+ }
+
+ function Node() {
+ // Skip comment.
+ index = lookahead.start;
+ if (lookahead.type === Token.StringLiteral) {
+ lineNumber = lookahead.startLineNumber;
+ lineStart = lookahead.startLineStart;
+ } else {
+ lineNumber = lookahead.lineNumber;
+ lineStart = lookahead.lineStart;
+ }
+ if (extra.range) {
+ this.range = [index, 0];
+ }
+ if (extra.loc) {
+ this.loc = new SourceLocation();
+ }
+ }
+
+ function WrappingNode(startToken) {
+ if (extra.range) {
+ this.range = [startToken.start, 0];
+ }
+ if (extra.loc) {
+ this.loc = new WrappingSourceLocation(startToken);
+ }
+ }
+
+ WrappingNode.prototype = Node.prototype = {
+
+ processComment: function () {
+ var lastChild,
+ leadingComments,
+ trailingComments,
+ bottomRight = extra.bottomRightStack,
+ i,
+ comment,
+ last = bottomRight[bottomRight.length - 1];
+
+ if (this.type === Syntax.Program) {
+ if (this.body.length > 0) {
+ return;
+ }
+ }
+
+ if (extra.trailingComments.length > 0) {
+ trailingComments = [];
+ for (i = extra.trailingComments.length - 1; i >= 0; --i) {
+ comment = extra.trailingComments[i];
+ if (comment.range[0] >= this.range[1]) {
+ trailingComments.unshift(comment);
+ extra.trailingComments.splice(i, 1);
+ }
+ }
+ extra.trailingComments = [];
+ } else {
+ if (last && last.trailingComments && last.trailingComments[0].range[0] >= this.range[1]) {
+ trailingComments = last.trailingComments;
+ delete last.trailingComments;
+ }
+ }
+
+ // Eating the stack.
+ if (last) {
+ while (last && last.range[0] >= this.range[0]) {
+ lastChild = last;
+ last = bottomRight.pop();
+ }
+ }
+
+ if (lastChild) {
+ if (lastChild.leadingComments && lastChild.leadingComments[lastChild.leadingComments.length - 1].range[1] <= this.range[0]) {
+ this.leadingComments = lastChild.leadingComments;
+ lastChild.leadingComments = undefined;
+ }
+ } else if (extra.leadingComments.length > 0) {
+ leadingComments = [];
+ for (i = extra.leadingComments.length - 1; i >= 0; --i) {
+ comment = extra.leadingComments[i];
+ if (comment.range[1] <= this.range[0]) {
+ leadingComments.unshift(comment);
+ extra.leadingComments.splice(i, 1);
+ }
+ }
+ }
+
+
+ if (leadingComments && leadingComments.length > 0) {
+ this.leadingComments = leadingComments;
+ }
+ if (trailingComments && trailingComments.length > 0) {
+ this.trailingComments = trailingComments;
+ }
+
+ bottomRight.push(this);
+ },
+
+ finish: function () {
+ if (extra.range) {
+ this.range[1] = index;
+ }
+ if (extra.loc) {
+ this.loc.end = new Position();
+ if (extra.source) {
+ this.loc.source = extra.source;
+ }
+ }
+
+ if (extra.attachComment) {
+ this.processComment();
+ }
+ },
+
+ finishArrayExpression: function (elements) {
+ this.type = Syntax.ArrayExpression;
+ this.elements = elements;
+ this.finish();
+ return this;
+ },
+
+ finishArrowFunctionExpression: function (params, defaults, body, expression) {
+ this.type = Syntax.ArrowFunctionExpression;
+ this.id = null;
+ this.params = params;
+ this.defaults = defaults;
+ this.body = body;
+ this.rest = null;
+ this.generator = false;
+ this.expression = expression;
+ this.finish();
+ return this;
+ },
+
+ finishAssignmentExpression: function (operator, left, right) {
+ this.type = Syntax.AssignmentExpression;
+ this.operator = operator;
+ this.left = left;
+ this.right = right;
+ this.finish();
+ return this;
+ },
+
+ finishBinaryExpression: function (operator, left, right) {
+ this.type = (operator === '||' || operator === '&&') ? Syntax.LogicalExpression : Syntax.BinaryExpression;
+ this.operator = operator;
+ this.left = left;
+ this.right = right;
+ this.finish();
+ return this;
+ },
+
+ finishBlockStatement: function (body) {
+ this.type = Syntax.BlockStatement;
+ this.body = body;
+ this.finish();
+ return this;
+ },
+
+ finishBreakStatement: function (label) {
+ this.type = Syntax.BreakStatement;
+ this.label = label;
+ this.finish();
+ return this;
+ },
+
+ finishCallExpression: function (callee, args) {
+ this.type = Syntax.CallExpression;
+ this.callee = callee;
+ this.arguments = args;
+ this.finish();
+ return this;
+ },
+
+ finishCatchClause: function (param, body) {
+ this.type = Syntax.CatchClause;
+ this.param = param;
+ this.body = body;
+ this.finish();
+ return this;
+ },
+
+ finishConditionalExpression: function (test, consequent, alternate) {
+ this.type = Syntax.ConditionalExpression;
+ this.test = test;
+ this.consequent = consequent;
+ this.alternate = alternate;
+ this.finish();
+ return this;
+ },
+
+ finishContinueStatement: function (label) {
+ this.type = Syntax.ContinueStatement;
+ this.label = label;
+ this.finish();
+ return this;
+ },
+
+ finishDebuggerStatement: function () {
+ this.type = Syntax.DebuggerStatement;
+ this.finish();
+ return this;
+ },
+
+ finishDoWhileStatement: function (body, test) {
+ this.type = Syntax.DoWhileStatement;
+ this.body = body;
+ this.test = test;
+ this.finish();
+ return this;
+ },
+
+ finishEmptyStatement: function () {
+ this.type = Syntax.EmptyStatement;
+ this.finish();
+ return this;
+ },
+
+ finishExpressionStatement: function (expression) {
+ this.type = Syntax.ExpressionStatement;
+ this.expression = expression;
+ this.finish();
+ return this;
+ },
+
+ finishForStatement: function (init, test, update, body) {
+ this.type = Syntax.ForStatement;
+ this.init = init;
+ this.test = test;
+ this.update = update;
+ this.body = body;
+ this.finish();
+ return this;
+ },
+
+ finishForInStatement: function (left, right, body) {
+ this.type = Syntax.ForInStatement;
+ this.left = left;
+ this.right = right;
+ this.body = body;
+ this.each = false;
+ this.finish();
+ return this;
+ },
+
+ finishFunctionDeclaration: function (id, params, defaults, body) {
+ this.type = Syntax.FunctionDeclaration;
+ this.id = id;
+ this.params = params;
+ this.defaults = defaults;
+ this.body = body;
+ this.rest = null;
+ this.generator = false;
+ this.expression = false;
+ this.finish();
+ return this;
+ },
+
+ finishFunctionExpression: function (id, params, defaults, body) {
+ this.type = Syntax.FunctionExpression;
+ this.id = id;
+ this.params = params;
+ this.defaults = defaults;
+ this.body = body;
+ this.rest = null;
+ this.generator = false;
+ this.expression = false;
+ this.finish();
+ return this;
+ },
+
+ finishIdentifier: function (name) {
+ this.type = Syntax.Identifier;
+ this.name = name;
+ this.finish();
+ return this;
+ },
+
+ finishIfStatement: function (test, consequent, alternate) {
+ this.type = Syntax.IfStatement;
+ this.test = test;
+ this.consequent = consequent;
+ this.alternate = alternate;
+ this.finish();
+ return this;
+ },
+
+ finishLabeledStatement: function (label, body) {
+ this.type = Syntax.LabeledStatement;
+ this.label = label;
+ this.body = body;
+ this.finish();
+ return this;
+ },
+
+ finishLiteral: function (token) {
+ this.type = Syntax.Literal;
+ this.value = token.value;
+ this.raw = source.slice(token.start, token.end);
+ if (token.regex) {
+ this.regex = token.regex;
+ }
+ this.finish();
+ return this;
+ },
+
+ finishMemberExpression: function (accessor, object, property) {
+ this.type = Syntax.MemberExpression;
+ this.computed = accessor === '[';
+ this.object = object;
+ this.property = property;
+ this.finish();
+ return this;
+ },
+
+ finishNewExpression: function (callee, args) {
+ this.type = Syntax.NewExpression;
+ this.callee = callee;
+ this.arguments = args;
+ this.finish();
+ return this;
+ },
+
+ finishObjectExpression: function (properties) {
+ this.type = Syntax.ObjectExpression;
+ this.properties = properties;
+ this.finish();
+ return this;
+ },
+
+ finishPostfixExpression: function (operator, argument) {
+ this.type = Syntax.UpdateExpression;
+ this.operator = operator;
+ this.argument = argument;
+ this.prefix = false;
+ this.finish();
+ return this;
+ },
+
+ finishProgram: function (body) {
+ this.type = Syntax.Program;
+ this.body = body;
+ this.finish();
+ return this;
+ },
+
+ finishProperty: function (kind, key, value, method, shorthand) {
+ this.type = Syntax.Property;
+ this.key = key;
+ this.value = value;
+ this.kind = kind;
+ this.method = method;
+ this.shorthand = shorthand;
+ this.finish();
+ return this;
+ },
+
+ finishReturnStatement: function (argument) {
+ this.type = Syntax.ReturnStatement;
+ this.argument = argument;
+ this.finish();
+ return this;
+ },
+
+ finishSequenceExpression: function (expressions) {
+ this.type = Syntax.SequenceExpression;
+ this.expressions = expressions;
+ this.finish();
+ return this;
+ },
+
+ finishSwitchCase: function (test, consequent) {
+ this.type = Syntax.SwitchCase;
+ this.test = test;
+ this.consequent = consequent;
+ this.finish();
+ return this;
+ },
+
+ finishSwitchStatement: function (discriminant, cases) {
+ this.type = Syntax.SwitchStatement;
+ this.discriminant = discriminant;
+ this.cases = cases;
+ this.finish();
+ return this;
+ },
+
+ finishThisExpression: function () {
+ this.type = Syntax.ThisExpression;
+ this.finish();
+ return this;
+ },
+
+ finishThrowStatement: function (argument) {
+ this.type = Syntax.ThrowStatement;
+ this.argument = argument;
+ this.finish();
+ return this;
+ },
+
+ finishTryStatement: function (block, guardedHandlers, handlers, finalizer) {
+ this.type = Syntax.TryStatement;
+ this.block = block;
+ this.guardedHandlers = guardedHandlers;
+ this.handlers = handlers;
+ this.finalizer = finalizer;
+ this.finish();
+ return this;
+ },
+
+ finishUnaryExpression: function (operator, argument) {
+ this.type = (operator === '++' || operator === '--') ? Syntax.UpdateExpression : Syntax.UnaryExpression;
+ this.operator = operator;
+ this.argument = argument;
+ this.prefix = true;
+ this.finish();
+ return this;
+ },
+
+ finishVariableDeclaration: function (declarations, kind) {
+ this.type = Syntax.VariableDeclaration;
+ this.declarations = declarations;
+ this.kind = kind;
+ this.finish();
+ return this;
+ },
+
+ finishVariableDeclarator: function (id, init) {
+ this.type = Syntax.VariableDeclarator;
+ this.id = id;
+ this.init = init;
+ this.finish();
+ return this;
+ },
+
+ finishWhileStatement: function (test, body) {
+ this.type = Syntax.WhileStatement;
+ this.test = test;
+ this.body = body;
+ this.finish();
+ return this;
+ },
+
+ finishWithStatement: function (object, body) {
+ this.type = Syntax.WithStatement;
+ this.object = object;
+ this.body = body;
+ this.finish();
+ return this;
+ }
+ };
+
+ // Return true if there is a line terminator before the next token.
+
+ function peekLineTerminator() {
+ var pos, line, start, found;
+
+ pos = index;
+ line = lineNumber;
+ start = lineStart;
+ skipComment();
+ found = lineNumber !== line;
+ index = pos;
+ lineNumber = line;
+ lineStart = start;
+
+ return found;
+ }
+
+ function createError(line, pos, description) {
+ var error = new Error('Line ' + line + ': ' + description);
+ error.index = pos;
+ error.lineNumber = line;
+ error.column = pos - lineStart + 1;
+ error.description = description;
+ return error;
+ }
+
+ // Throw an exception
+
+ function throwError(messageFormat) {
+ var args, msg;
+
+ args = Array.prototype.slice.call(arguments, 1);
+ msg = messageFormat.replace(/%(\d)/g,
+ function (whole, idx) {
+ assert(idx < args.length, 'Message reference must be in range');
+ return args[idx];
+ }
+ );
+
+ throw createError(lineNumber, index, msg);
+ }
+
+ function tolerateError(messageFormat) {
+ var args, msg, error;
+
+ args = Array.prototype.slice.call(arguments, 1);
+ /* istanbul ignore next */
+ msg = messageFormat.replace(/%(\d)/g,
+ function (whole, idx) {
+ assert(idx < args.length, 'Message reference must be in range');
+ return args[idx];
+ }
+ );
+
+ error = createError(lineNumber, index, msg);
+ if (extra.errors) {
+ extra.errors.push(error);
+ } else {
+ throw error;
+ }
+ }
+
+ // Throw an exception because of the token.
+
+ function unexpectedTokenError(token, message) {
+ var msg = Messages.UnexpectedToken;
+
+ if (token) {
+ msg = message ? message :
+ (token.type === Token.EOF) ? Messages.UnexpectedEOS :
+ (token.type === Token.Identifier) ? Messages.UnexpectedIdentifier :
+ (token.type === Token.NumericLiteral) ? Messages.UnexpectedNumber :
+ (token.type === Token.StringLiteral) ? Messages.UnexpectedString :
+ Messages.UnexpectedToken;
+
+ if (token.type === Token.Keyword) {
+ if (isFutureReservedWord(token.value)) {
+ msg = Messages.UnexpectedReserved;
+ } else if (strict && isStrictModeReservedWord(token.value)) {
+ msg = Messages.StrictReservedWord;
+ }
+ }
+ }
+
+ msg = msg.replace('%0', token ? token.value : 'ILLEGAL');
+
+ return (token && typeof token.lineNumber === 'number') ?
+ createError(token.lineNumber, token.start, msg) :
+ createError(lineNumber, index, msg);
+ }
+
+ function throwUnexpectedToken(token, message) {
+ throw unexpectedTokenError(token, message);
+ }
+
+ function tolerateUnexpectedToken(token, message) {
+ var error = unexpectedTokenError(token, message);
+ if (extra.errors) {
+ extra.errors.push(error);
+ } else {
+ throw error;
+ }
+ }
+
+ // Expect the next token to match the specified punctuator.
+ // If not, an exception will be thrown.
+
+ function expect(value) {
+ var token = lex();
+ if (token.type !== Token.Punctuator || token.value !== value) {
+ throwUnexpectedToken(token);
+ }
+ }
+
+ /**
+ * @name expectCommaSeparator
+ * @description Quietly expect a comma when in tolerant mode, otherwise delegates
+ * to expect(value)
+ * @since 2.0
+ */
+ function expectCommaSeparator() {
+ var token;
+
+ if (extra.errors) {
+ token = lookahead;
+ if (token.type === Token.Punctuator && token.value === ',') {
+ lex();
+ } else if (token.type === Token.Punctuator && token.value === ';') {
+ lex();
+ tolerateUnexpectedToken(token);
+ } else {
+ tolerateUnexpectedToken(token, Messages.UnexpectedToken);
+ }
+ } else {
+ expect(',');
+ }
+ }
+
+ // Expect the next token to match the specified keyword.
+ // If not, an exception will be thrown.
+
+ function expectKeyword(keyword) {
+ var token = lex();
+ if (token.type !== Token.Keyword || token.value !== keyword) {
+ throwUnexpectedToken(token);
+ }
+ }
+
+ // Return true if the next token matches the specified punctuator.
+
+ function match(value) {
+ return lookahead.type === Token.Punctuator && lookahead.value === value;
+ }
+
+ // Return true if the next token matches the specified keyword
+
+ function matchKeyword(keyword) {
+ return lookahead.type === Token.Keyword && lookahead.value === keyword;
+ }
+
+ // Return true if the next token is an assignment operator
+
+ function matchAssign() {
+ var op;
+
+ if (lookahead.type !== Token.Punctuator) {
+ return false;
+ }
+ op = lookahead.value;
+ return op === '=' ||
+ op === '*=' ||
+ op === '/=' ||
+ op === '%=' ||
+ op === '+=' ||
+ op === '-=' ||
+ op === '<<=' ||
+ op === '>>=' ||
+ op === '>>>=' ||
+ op === '&=' ||
+ op === '^=' ||
+ op === '|=';
+ }
+
+ function consumeSemicolon() {
+ var line, oldIndex = index, oldLineNumber = lineNumber,
+ oldLineStart = lineStart, oldLookahead = lookahead;
+
+ // Catch the very common case first: immediately a semicolon (U+003B).
+ if (source.charCodeAt(index) === 0x3B || match(';')) {
+ lex();
+ return;
+ }
+
+ line = lineNumber;
+ skipComment();
+ if (lineNumber !== line) {
+ index = oldIndex;
+ lineNumber = oldLineNumber;
+ lineStart = oldLineStart;
+ lookahead = oldLookahead;
+ return;
+ }
+
+ if (lookahead.type !== Token.EOF && !match('}')) {
+ throwUnexpectedToken(lookahead);
+ }
+ }
+
+ // Return true if provided expression is LeftHandSideExpression
+
+ function isLeftHandSide(expr) {
+ return expr.type === Syntax.Identifier || expr.type === Syntax.MemberExpression;
+ }
+
+ // 11.1.4 Array Initialiser
+
+ function parseArrayInitialiser() {
+ var elements = [], node = new Node();
+
+ expect('[');
+
+ while (!match(']')) {
+ if (match(',')) {
+ lex();
+ elements.push(null);
+ } else {
+ elements.push(parseAssignmentExpression());
+
+ if (!match(']')) {
+ expect(',');
+ }
+ }
+ }
+
+ lex();
+
+ return node.finishArrayExpression(elements);
+ }
+
+ // 11.1.5 Object Initialiser
+
+ function parsePropertyFunction(param, first) {
+ var previousStrict, body, node = new Node();
+
+ previousStrict = strict;
+ body = parseFunctionSourceElements();
+ if (first && strict && isRestrictedWord(param[0].name)) {
+ tolerateUnexpectedToken(first, Messages.StrictParamName);
+ }
+ strict = previousStrict;
+ return node.finishFunctionExpression(null, param, [], body);
+ }
+
+ function parsePropertyMethodFunction() {
+ var previousStrict, param, method;
+
+ previousStrict = strict;
+ strict = true;
+ param = parseParams();
+ method = parsePropertyFunction(param.params);
+ strict = previousStrict;
+
+ return method;
+ }
+
+ function parseObjectPropertyKey() {
+ var token, node = new Node();
+
+ token = lex();
+
+ // Note: This function is called only from parseObjectProperty(), where
+ // EOF and Punctuator tokens are already filtered out.
+
+ if (token.type === Token.StringLiteral || token.type === Token.NumericLiteral) {
+ if (strict && token.octal) {
+ tolerateUnexpectedToken(token, Messages.StrictOctalLiteral);
+ }
+ return node.finishLiteral(token);
+ }
+
+ return node.finishIdentifier(token.value);
+ }
+
+ function parseObjectProperty() {
+ var token, key, id, value, param, node = new Node();
+
+ token = lookahead;
+
+ if (token.type === Token.Identifier) {
+
+ id = parseObjectPropertyKey();
+
+ // Property Assignment: Getter and Setter.
+
+ if (token.value === 'get' && !(match(':') || match('('))) {
+ key = parseObjectPropertyKey();
+ expect('(');
+ expect(')');
+ value = parsePropertyFunction([]);
+ return node.finishProperty('get', key, value, false, false);
+ }
+ if (token.value === 'set' && !(match(':') || match('('))) {
+ key = parseObjectPropertyKey();
+ expect('(');
+ token = lookahead;
+ if (token.type !== Token.Identifier) {
+ expect(')');
+ tolerateUnexpectedToken(token);
+ value = parsePropertyFunction([]);
+ } else {
+ param = [ parseVariableIdentifier() ];
+ expect(')');
+ value = parsePropertyFunction(param, token);
+ }
+ return node.finishProperty('set', key, value, false, false);
+ }
+ if (match(':')) {
+ lex();
+ value = parseAssignmentExpression();
+ return node.finishProperty('init', id, value, false, false);
+ }
+ if (match('(')) {
+ value = parsePropertyMethodFunction();
+ return node.finishProperty('init', id, value, true, false);
+ }
+
+ value = id;
+ return node.finishProperty('init', id, value, false, true);
+ }
+ if (token.type === Token.EOF || token.type === Token.Punctuator) {
+ throwUnexpectedToken(token);
+ } else {
+ key = parseObjectPropertyKey();
+ if (match(':')) {
+ lex();
+ value = parseAssignmentExpression();
+ return node.finishProperty('init', key, value, false, false);
+ }
+ if (match('(')) {
+ value = parsePropertyMethodFunction();
+ return node.finishProperty('init', key, value, true, false);
+ }
+ throwUnexpectedToken(lex());
+ }
+ }
+
+ function parseObjectInitialiser() {
+ var properties = [], property, name, key, kind, map = {}, toString = String, node = new Node();
+
+ expect('{');
+
+ while (!match('}')) {
+ property = parseObjectProperty();
+
+ if (property.key.type === Syntax.Identifier) {
+ name = property.key.name;
+ } else {
+ name = toString(property.key.value);
+ }
+ kind = (property.kind === 'init') ? PropertyKind.Data : (property.kind === 'get') ? PropertyKind.Get : PropertyKind.Set;
+
+ key = '$' + name;
+ if (Object.prototype.hasOwnProperty.call(map, key)) {
+ if (map[key] === PropertyKind.Data) {
+ if (strict && kind === PropertyKind.Data) {
+ tolerateError(Messages.StrictDuplicateProperty);
+ } else if (kind !== PropertyKind.Data) {
+ tolerateError(Messages.AccessorDataProperty);
+ }
+ } else {
+ if (kind === PropertyKind.Data) {
+ tolerateError(Messages.AccessorDataProperty);
+ } else if (map[key] & kind) {
+ tolerateError(Messages.AccessorGetSet);
+ }
+ }
+ map[key] |= kind;
+ } else {
+ map[key] = kind;
+ }
+
+ properties.push(property);
+
+ if (!match('}')) {
+ expectCommaSeparator();
+ }
+ }
+
+ expect('}');
+
+ return node.finishObjectExpression(properties);
+ }
+
+ // 11.1.6 The Grouping Operator
+
+ function parseGroupExpression() {
+ var expr;
+
+ expect('(');
+
+ if (match(')')) {
+ lex();
+ return PlaceHolders.ArrowParameterPlaceHolder;
+ }
+
+ ++state.parenthesisCount;
+
+ expr = parseExpression();
+
+ expect(')');
+
+ return expr;
+ }
+
+
+ // 11.1 Primary Expressions
+
+ function parsePrimaryExpression() {
+ var type, token, expr, node;
+
+ if (match('(')) {
+ return parseGroupExpression();
+ }
+
+ if (match('[')) {
+ return parseArrayInitialiser();
+ }
+
+ if (match('{')) {
+ return parseObjectInitialiser();
+ }
+
+ type = lookahead.type;
+ node = new Node();
+
+ if (type === Token.Identifier) {
+ expr = node.finishIdentifier(lex().value);
+ } else if (type === Token.StringLiteral || type === Token.NumericLiteral) {
+ if (strict && lookahead.octal) {
+ tolerateUnexpectedToken(lookahead, Messages.StrictOctalLiteral);
+ }
+ expr = node.finishLiteral(lex());
+ } else if (type === Token.Keyword) {
+ if (matchKeyword('function')) {
+ return parseFunctionExpression();
+ }
+ if (matchKeyword('this')) {
+ lex();
+ expr = node.finishThisExpression();
+ } else {
+ throwUnexpectedToken(lex());
+ }
+ } else if (type === Token.BooleanLiteral) {
+ token = lex();
+ token.value = (token.value === 'true');
+ expr = node.finishLiteral(token);
+ } else if (type === Token.NullLiteral) {
+ token = lex();
+ token.value = null;
+ expr = node.finishLiteral(token);
+ } else if (match('/') || match('/=')) {
+ if (typeof extra.tokens !== 'undefined') {
+ expr = node.finishLiteral(collectRegex());
+ } else {
+ expr = node.finishLiteral(scanRegExp());
+ }
+ peek();
+ } else {
+ throwUnexpectedToken(lex());
+ }
+
+ return expr;
+ }
+
+ // 11.2 Left-Hand-Side Expressions
+
+ function parseArguments() {
+ var args = [];
+
+ expect('(');
+
+ if (!match(')')) {
+ while (index < length) {
+ args.push(parseAssignmentExpression());
+ if (match(')')) {
+ break;
+ }
+ expectCommaSeparator();
+ }
+ }
+
+ expect(')');
+
+ return args;
+ }
+
+ function parseNonComputedProperty() {
+ var token, node = new Node();
+
+ token = lex();
+
+ if (!isIdentifierName(token)) {
+ throwUnexpectedToken(token);
+ }
+
+ return node.finishIdentifier(token.value);
+ }
+
+ function parseNonComputedMember() {
+ expect('.');
+
+ return parseNonComputedProperty();
+ }
+
+ function parseComputedMember() {
+ var expr;
+
+ expect('[');
+
+ expr = parseExpression();
+
+ expect(']');
+
+ return expr;
+ }
+
+ function parseNewExpression() {
+ var callee, args, node = new Node();
+
+ expectKeyword('new');
+ callee = parseLeftHandSideExpression();
+ args = match('(') ? parseArguments() : [];
+
+ return node.finishNewExpression(callee, args);
+ }
+
+ function parseLeftHandSideExpressionAllowCall() {
+ var expr, args, property, startToken, previousAllowIn = state.allowIn;
+
+ startToken = lookahead;
+ state.allowIn = true;
+ expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
+
+ for (;;) {
+ if (match('.')) {
+ property = parseNonComputedMember();
+ expr = new WrappingNode(startToken).finishMemberExpression('.', expr, property);
+ } else if (match('(')) {
+ args = parseArguments();
+ expr = new WrappingNode(startToken).finishCallExpression(expr, args);
+ } else if (match('[')) {
+ property = parseComputedMember();
+ expr = new WrappingNode(startToken).finishMemberExpression('[', expr, property);
+ } else {
+ break;
+ }
+ }
+ state.allowIn = previousAllowIn;
+
+ return expr;
+ }
+
+ function parseLeftHandSideExpression() {
+ var expr, property, startToken;
+ assert(state.allowIn, 'callee of new expression always allow in keyword.');
+
+ startToken = lookahead;
+
+ expr = matchKeyword('new') ? parseNewExpression() : parsePrimaryExpression();
+
+ for (;;) {
+ if (match('[')) {
+ property = parseComputedMember();
+ expr = new WrappingNode(startToken).finishMemberExpression('[', expr, property);
+ } else if (match('.')) {
+ property = parseNonComputedMember();
+ expr = new WrappingNode(startToken).finishMemberExpression('.', expr, property);
+ } else {
+ break;
+ }
+ }
+ return expr;
+ }
+
+ // 11.3 Postfix Expressions
+
+ function parsePostfixExpression() {
+ var expr, token, startToken = lookahead;
+
+ expr = parseLeftHandSideExpressionAllowCall();
+
+ if (lookahead.type === Token.Punctuator) {
+ if ((match('++') || match('--')) && !peekLineTerminator()) {
+ // 11.3.1, 11.3.2
+ if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+ tolerateError(Messages.StrictLHSPostfix);
+ }
+
+ if (!isLeftHandSide(expr)) {
+ tolerateError(Messages.InvalidLHSInAssignment);
+ }
+
+ token = lex();
+ expr = new WrappingNode(startToken).finishPostfixExpression(token.value, expr);
+ }
+ }
+
+ return expr;
+ }
+
+ // 11.4 Unary Operators
+
+ function parseUnaryExpression() {
+ var token, expr, startToken;
+
+ if (lookahead.type !== Token.Punctuator && lookahead.type !== Token.Keyword) {
+ expr = parsePostfixExpression();
+ } else if (match('++') || match('--')) {
+ startToken = lookahead;
+ token = lex();
+ expr = parseUnaryExpression();
+ // 11.4.4, 11.4.5
+ if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+ tolerateError(Messages.StrictLHSPrefix);
+ }
+
+ if (!isLeftHandSide(expr)) {
+ tolerateError(Messages.InvalidLHSInAssignment);
+ }
+
+ expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr);
+ } else if (match('+') || match('-') || match('~') || match('!')) {
+ startToken = lookahead;
+ token = lex();
+ expr = parseUnaryExpression();
+ expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr);
+ } else if (matchKeyword('delete') || matchKeyword('void') || matchKeyword('typeof')) {
+ startToken = lookahead;
+ token = lex();
+ expr = parseUnaryExpression();
+ expr = new WrappingNode(startToken).finishUnaryExpression(token.value, expr);
+ if (strict && expr.operator === 'delete' && expr.argument.type === Syntax.Identifier) {
+ tolerateError(Messages.StrictDelete);
+ }
+ } else {
+ expr = parsePostfixExpression();
+ }
+
+ return expr;
+ }
+
+ function binaryPrecedence(token, allowIn) {
+ var prec = 0;
+
+ if (token.type !== Token.Punctuator && token.type !== Token.Keyword) {
+ return 0;
+ }
+
+ switch (token.value) {
+ case '||':
+ prec = 1;
+ break;
+
+ case '&&':
+ prec = 2;
+ break;
+
+ case '|':
+ prec = 3;
+ break;
+
+ case '^':
+ prec = 4;
+ break;
+
+ case '&':
+ prec = 5;
+ break;
+
+ case '==':
+ case '!=':
+ case '===':
+ case '!==':
+ prec = 6;
+ break;
+
+ case '<':
+ case '>':
+ case '<=':
+ case '>=':
+ case 'instanceof':
+ prec = 7;
+ break;
+
+ case 'in':
+ prec = allowIn ? 7 : 0;
+ break;
+
+ case '<<':
+ case '>>':
+ case '>>>':
+ prec = 8;
+ break;
+
+ case '+':
+ case '-':
+ prec = 9;
+ break;
+
+ case '*':
+ case '/':
+ case '%':
+ prec = 11;
+ break;
+
+ default:
+ break;
+ }
+
+ return prec;
+ }
+
+ // 11.5 Multiplicative Operators
+ // 11.6 Additive Operators
+ // 11.7 Bitwise Shift Operators
+ // 11.8 Relational Operators
+ // 11.9 Equality Operators
+ // 11.10 Binary Bitwise Operators
+ // 11.11 Binary Logical Operators
+
+ function parseBinaryExpression() {
+ var marker, markers, expr, token, prec, stack, right, operator, left, i;
+
+ marker = lookahead;
+ left = parseUnaryExpression();
+ if (left === PlaceHolders.ArrowParameterPlaceHolder) {
+ return left;
+ }
+
+ token = lookahead;
+ prec = binaryPrecedence(token, state.allowIn);
+ if (prec === 0) {
+ return left;
+ }
+ token.prec = prec;
+ lex();
+
+ markers = [marker, lookahead];
+ right = parseUnaryExpression();
+
+ stack = [left, token, right];
+
+ while ((prec = binaryPrecedence(lookahead, state.allowIn)) > 0) {
+
+ // Reduce: make a binary expression from the three topmost entries.
+ while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {
+ right = stack.pop();
+ operator = stack.pop().value;
+ left = stack.pop();
+ markers.pop();
+ expr = new WrappingNode(markers[markers.length - 1]).finishBinaryExpression(operator, left, right);
+ stack.push(expr);
+ }
+
+ // Shift.
+ token = lex();
+ token.prec = prec;
+ stack.push(token);
+ markers.push(lookahead);
+ expr = parseUnaryExpression();
+ stack.push(expr);
+ }
+
+ // Final reduce to clean-up the stack.
+ i = stack.length - 1;
+ expr = stack[i];
+ markers.pop();
+ while (i > 1) {
+ expr = new WrappingNode(markers.pop()).finishBinaryExpression(stack[i - 1].value, stack[i - 2], expr);
+ i -= 2;
+ }
+
+ return expr;
+ }
+
+
+ // 11.12 Conditional Operator
+
+ function parseConditionalExpression() {
+ var expr, previousAllowIn, consequent, alternate, startToken;
+
+ startToken = lookahead;
+
+ expr = parseBinaryExpression();
+ if (expr === PlaceHolders.ArrowParameterPlaceHolder) {
+ return expr;
+ }
+ if (match('?')) {
+ lex();
+ previousAllowIn = state.allowIn;
+ state.allowIn = true;
+ consequent = parseAssignmentExpression();
+ state.allowIn = previousAllowIn;
+ expect(':');
+ alternate = parseAssignmentExpression();
+
+ expr = new WrappingNode(startToken).finishConditionalExpression(expr, consequent, alternate);
+ }
+
+ return expr;
+ }
+
+ // [ES6] 14.2 Arrow Function
+
+ function parseConciseBody() {
+ if (match('{')) {
+ return parseFunctionSourceElements();
+ }
+ return parseAssignmentExpression();
+ }
+
+ function reinterpretAsCoverFormalsList(expressions) {
+ var i, len, param, params, defaults, defaultCount, options, rest, token;
+
+ params = [];
+ defaults = [];
+ defaultCount = 0;
+ rest = null;
+ options = {
+ paramSet: {}
+ };
+
+ for (i = 0, len = expressions.length; i < len; i += 1) {
+ param = expressions[i];
+ if (param.type === Syntax.Identifier) {
+ params.push(param);
+ defaults.push(null);
+ validateParam(options, param, param.name);
+ } else if (param.type === Syntax.AssignmentExpression) {
+ params.push(param.left);
+ defaults.push(param.right);
+ ++defaultCount;
+ validateParam(options, param.left, param.left.name);
+ } else {
+ return null;
+ }
+ }
+
+ if (options.message === Messages.StrictParamDupe) {
+ token = strict ? options.stricted : options.firstRestricted;
+ throwUnexpectedToken(token, options.message);
+ }
+
+ if (defaultCount === 0) {
+ defaults = [];
+ }
+
+ return {
+ params: params,
+ defaults: defaults,
+ rest: rest,
+ stricted: options.stricted,
+ firstRestricted: options.firstRestricted,
+ message: options.message
+ };
+ }
+
+ function parseArrowFunctionExpression(options, node) {
+ var previousStrict, body;
+
+ expect('=>');
+ previousStrict = strict;
+
+ body = parseConciseBody();
+
+ if (strict && options.firstRestricted) {
+ throwUnexpectedToken(options.firstRestricted, options.message);
+ }
+ if (strict && options.stricted) {
+ tolerateUnexpectedToken(options.stricted, options.message);
+ }
+
+ strict = previousStrict;
+
+ return node.finishArrowFunctionExpression(options.params, options.defaults, body, body.type !== Syntax.BlockStatement);
+ }
+
+ // 11.13 Assignment Operators
+
+ function parseAssignmentExpression() {
+ var oldParenthesisCount, token, expr, right, list, startToken;
+
+ oldParenthesisCount = state.parenthesisCount;
+
+ startToken = lookahead;
+ token = lookahead;
+
+ expr = parseConditionalExpression();
+
+ if (expr === PlaceHolders.ArrowParameterPlaceHolder || match('=>')) {
+ if (state.parenthesisCount === oldParenthesisCount ||
+ state.parenthesisCount === (oldParenthesisCount + 1)) {
+ if (expr.type === Syntax.Identifier) {
+ list = reinterpretAsCoverFormalsList([ expr ]);
+ } else if (expr.type === Syntax.AssignmentExpression) {
+ list = reinterpretAsCoverFormalsList([ expr ]);
+ } else if (expr.type === Syntax.SequenceExpression) {
+ list = reinterpretAsCoverFormalsList(expr.expressions);
+ } else if (expr === PlaceHolders.ArrowParameterPlaceHolder) {
+ list = reinterpretAsCoverFormalsList([]);
+ }
+ if (list) {
+ return parseArrowFunctionExpression(list, new WrappingNode(startToken));
+ }
+ }
+ }
+
+ if (matchAssign()) {
+ // LeftHandSideExpression
+ if (!isLeftHandSide(expr)) {
+ tolerateError(Messages.InvalidLHSInAssignment);
+ }
+
+ // 11.13.1
+ if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
+ tolerateUnexpectedToken(token, Messages.StrictLHSAssignment);
+ }
+
+ token = lex();
+ right = parseAssignmentExpression();
+ expr = new WrappingNode(startToken).finishAssignmentExpression(token.value, expr, right);
+ }
+
+ return expr;
+ }
+
+ // 11.14 Comma Operator
+
+ function parseExpression() {
+ var expr, startToken = lookahead, expressions;
+
+ expr = parseAssignmentExpression();
+
+ if (match(',')) {
+ expressions = [expr];
+
+ while (index < length) {
+ if (!match(',')) {
+ break;
+ }
+ lex();
+ expressions.push(parseAssignmentExpression());
+ }
+
+ expr = new WrappingNode(startToken).finishSequenceExpression(expressions);
+ }
+
+ return expr;
+ }
+
+ // 12.1 Block
+
+ function parseStatementList() {
+ var list = [],
+ statement;
+
+ while (index < length) {
+ if (match('}')) {
+ break;
+ }
+ statement = parseSourceElement();
+ if (typeof statement === 'undefined') {
+ break;
+ }
+ list.push(statement);
+ }
+
+ return list;
+ }
+
+ function parseBlock() {
+ var block, node = new Node();
+
+ expect('{');
+
+ block = parseStatementList();
+
+ expect('}');
+
+ return node.finishBlockStatement(block);
+ }
+
+ // 12.2 Variable Statement
+
+ function parseVariableIdentifier() {
+ var token, node = new Node();
+
+ token = lex();
+
+ if (token.type !== Token.Identifier) {
+ if (strict && token.type === Token.Keyword && isStrictModeReservedWord(token.value)) {
+ tolerateUnexpectedToken(token, Messages.StrictReservedWord);
+ } else {
+ throwUnexpectedToken(token);
+ }
+ }
+
+ return node.finishIdentifier(token.value);
+ }
+
+ function parseVariableDeclaration(kind) {
+ var init = null, id, node = new Node();
+
+ id = parseVariableIdentifier();
+
+ // 12.2.1
+ if (strict && isRestrictedWord(id.name)) {
+ tolerateError(Messages.StrictVarName);
+ }
+
+ if (kind === 'const') {
+ expect('=');
+ init = parseAssignmentExpression();
+ } else if (match('=')) {
+ lex();
+ init = parseAssignmentExpression();
+ }
+
+ return node.finishVariableDeclarator(id, init);
+ }
+
+ function parseVariableDeclarationList(kind) {
+ var list = [];
+
+ do {
+ list.push(parseVariableDeclaration(kind));
+ if (!match(',')) {
+ break;
+ }
+ lex();
+ } while (index < length);
+
+ return list;
+ }
+
+ function parseVariableStatement(node) {
+ var declarations;
+
+ expectKeyword('var');
+
+ declarations = parseVariableDeclarationList();
+
+ consumeSemicolon();
+
+ return node.finishVariableDeclaration(declarations, 'var');
+ }
+
+ // kind may be `const` or `let`
+ // Both are experimental and not in the specification yet.
+ // see http://wiki.ecmascript.org/doku.php?id=harmony:const
+ // and http://wiki.ecmascript.org/doku.php?id=harmony:let
+ function parseConstLetDeclaration(kind) {
+ var declarations, node = new Node();
+
+ expectKeyword(kind);
+
+ declarations = parseVariableDeclarationList(kind);
+
+ consumeSemicolon();
+
+ return node.finishVariableDeclaration(declarations, kind);
+ }
+
+ // 12.3 Empty Statement
+
+ function parseEmptyStatement() {
+ var node = new Node();
+ expect(';');
+ return node.finishEmptyStatement();
+ }
+
+ // 12.4 Expression Statement
+
+ function parseExpressionStatement(node) {
+ var expr = parseExpression();
+ consumeSemicolon();
+ return node.finishExpressionStatement(expr);
+ }
+
+ // 12.5 If statement
+
+ function parseIfStatement(node) {
+ var test, consequent, alternate;
+
+ expectKeyword('if');
+
+ expect('(');
+
+ test = parseExpression();
+
+ expect(')');
+
+ consequent = parseStatement();
+
+ if (matchKeyword('else')) {
+ lex();
+ alternate = parseStatement();
+ } else {
+ alternate = null;
+ }
+
+ return node.finishIfStatement(test, consequent, alternate);
+ }
+
+ // 12.6 Iteration Statements
+
+ function parseDoWhileStatement(node) {
+ var body, test, oldInIteration;
+
+ expectKeyword('do');
+
+ oldInIteration = state.inIteration;
+ state.inIteration = true;
+
+ body = parseStatement();
+
+ state.inIteration = oldInIteration;
+
+ expectKeyword('while');
+
+ expect('(');
+
+ test = parseExpression();
+
+ expect(')');
+
+ if (match(';')) {
+ lex();
+ }
+
+ return node.finishDoWhileStatement(body, test);
+ }
+
+ function parseWhileStatement(node) {
+ var test, body, oldInIteration;
+
+ expectKeyword('while');
+
+ expect('(');
+
+ test = parseExpression();
+
+ expect(')');
+
+ oldInIteration = state.inIteration;
+ state.inIteration = true;
+
+ body = parseStatement();
+
+ state.inIteration = oldInIteration;
+
+ return node.finishWhileStatement(test, body);
+ }
+
+ function parseForVariableDeclaration() {
+ var token, declarations, node = new Node();
+
+ token = lex();
+ declarations = parseVariableDeclarationList();
+
+ return node.finishVariableDeclaration(declarations, token.value);
+ }
+
+ function parseForStatement(node) {
+ var init, test, update, left, right, body, oldInIteration, previousAllowIn = state.allowIn;
+
+ init = test = update = null;
+
+ expectKeyword('for');
+
+ expect('(');
+
+ if (match(';')) {
+ lex();
+ } else {
+ if (matchKeyword('var') || matchKeyword('let')) {
+ state.allowIn = false;
+ init = parseForVariableDeclaration();
+ state.allowIn = previousAllowIn;
+
+ if (init.declarations.length === 1 && matchKeyword('in')) {
+ lex();
+ left = init;
+ right = parseExpression();
+ init = null;
+ }
+ } else {
+ state.allowIn = false;
+ init = parseExpression();
+ state.allowIn = previousAllowIn;
+
+ if (matchKeyword('in')) {
+ // LeftHandSideExpression
+ if (!isLeftHandSide(init)) {
+ tolerateError(Messages.InvalidLHSInForIn);
+ }
+
+ lex();
+ left = init;
+ right = parseExpression();
+ init = null;
+ }
+ }
+
+ if (typeof left === 'undefined') {
+ expect(';');
+ }
+ }
+
+ if (typeof left === 'undefined') {
+
+ if (!match(';')) {
+ test = parseExpression();
+ }
+ expect(';');
+
+ if (!match(')')) {
+ update = parseExpression();
+ }
+ }
+
+ expect(')');
+
+ oldInIteration = state.inIteration;
+ state.inIteration = true;
+
+ body = parseStatement();
+
+ state.inIteration = oldInIteration;
+
+ return (typeof left === 'undefined') ?
+ node.finishForStatement(init, test, update, body) :
+ node.finishForInStatement(left, right, body);
+ }
+
+ // 12.7 The continue statement
+
+ function parseContinueStatement(node) {
+ var label = null, key;
+
+ expectKeyword('continue');
+
+ // Optimize the most common form: 'continue;'.
+ if (source.charCodeAt(index) === 0x3B) {
+ lex();
+
+ if (!state.inIteration) {
+ throwError(Messages.IllegalContinue);
+ }
+
+ return node.finishContinueStatement(null);
+ }
+
+ if (peekLineTerminator()) {
+ if (!state.inIteration) {
+ throwError(Messages.IllegalContinue);
+ }
+
+ return node.finishContinueStatement(null);
+ }
+
+ if (lookahead.type === Token.Identifier) {
+ label = parseVariableIdentifier();
+
+ key = '$' + label.name;
+ if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
+ throwError(Messages.UnknownLabel, label.name);
+ }
+ }
+
+ consumeSemicolon();
+
+ if (label === null && !state.inIteration) {
+ throwError(Messages.IllegalContinue);
+ }
+
+ return node.finishContinueStatement(label);
+ }
+
+ // 12.8 The break statement
+
+ function parseBreakStatement(node) {
+ var label = null, key;
+
+ expectKeyword('break');
+
+ // Catch the very common case first: immediately a semicolon (U+003B).
+ if (source.charCodeAt(index) === 0x3B) {
+ lex();
+
+ if (!(state.inIteration || state.inSwitch)) {
+ throwError(Messages.IllegalBreak);
+ }
+
+ return node.finishBreakStatement(null);
+ }
+
+ if (peekLineTerminator()) {
+ if (!(state.inIteration || state.inSwitch)) {
+ throwError(Messages.IllegalBreak);
+ }
+
+ return node.finishBreakStatement(null);
+ }
+
+ if (lookahead.type === Token.Identifier) {
+ label = parseVariableIdentifier();
+
+ key = '$' + label.name;
+ if (!Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
+ throwError(Messages.UnknownLabel, label.name);
+ }
+ }
+
+ consumeSemicolon();
+
+ if (label === null && !(state.inIteration || state.inSwitch)) {
+ throwError(Messages.IllegalBreak);
+ }
+
+ return node.finishBreakStatement(label);
+ }
+
+ // 12.9 The return statement
+
+ function parseReturnStatement(node) {
+ var argument = null;
+
+ expectKeyword('return');
+
+ if (!state.inFunctionBody) {
+ tolerateError(Messages.IllegalReturn);
+ }
+
+ // 'return' followed by a space and an identifier is very common.
+ if (source.charCodeAt(index) === 0x20) {
+ if (isIdentifierStart(source.charCodeAt(index + 1))) {
+ argument = parseExpression();
+ consumeSemicolon();
+ return node.finishReturnStatement(argument);
+ }
+ }
+
+ if (peekLineTerminator()) {
+ return node.finishReturnStatement(null);
+ }
+
+ if (!match(';')) {
+ if (!match('}') && lookahead.type !== Token.EOF) {
+ argument = parseExpression();
+ }
+ }
+
+ consumeSemicolon();
+
+ return node.finishReturnStatement(argument);
+ }
+
+ // 12.10 The with statement
+
+ function parseWithStatement(node) {
+ var object, body;
+
+ if (strict) {
+ // TODO(ikarienator): Should we update the test cases instead?
+ skipComment();
+ tolerateError(Messages.StrictModeWith);
+ }
+
+ expectKeyword('with');
+
+ expect('(');
+
+ object = parseExpression();
+
+ expect(')');
+
+ body = parseStatement();
+
+ return node.finishWithStatement(object, body);
+ }
+
+ // 12.10 The swith statement
+
+ function parseSwitchCase() {
+ var test, consequent = [], statement, node = new Node();
+
+ if (matchKeyword('default')) {
+ lex();
+ test = null;
+ } else {
+ expectKeyword('case');
+ test = parseExpression();
+ }
+ expect(':');
+
+ while (index < length) {
+ if (match('}') || matchKeyword('default') || matchKeyword('case')) {
+ break;
+ }
+ statement = parseStatement();
+ consequent.push(statement);
+ }
+
+ return node.finishSwitchCase(test, consequent);
+ }
+
+ function parseSwitchStatement(node) {
+ var discriminant, cases, clause, oldInSwitch, defaultFound;
+
+ expectKeyword('switch');
+
+ expect('(');
+
+ discriminant = parseExpression();
+
+ expect(')');
+
+ expect('{');
+
+ cases = [];
+
+ if (match('}')) {
+ lex();
+ return node.finishSwitchStatement(discriminant, cases);
+ }
+
+ oldInSwitch = state.inSwitch;
+ state.inSwitch = true;
+ defaultFound = false;
+
+ while (index < length) {
+ if (match('}')) {
+ break;
+ }
+ clause = parseSwitchCase();
+ if (clause.test === null) {
+ if (defaultFound) {
+ throwError(Messages.MultipleDefaultsInSwitch);
+ }
+ defaultFound = true;
+ }
+ cases.push(clause);
+ }
+
+ state.inSwitch = oldInSwitch;
+
+ expect('}');
+
+ return node.finishSwitchStatement(discriminant, cases);
+ }
+
+ // 12.13 The throw statement
+
+ function parseThrowStatement(node) {
+ var argument;
+
+ expectKeyword('throw');
+
+ if (peekLineTerminator()) {
+ throwError(Messages.NewlineAfterThrow);
+ }
+
+ argument = parseExpression();
+
+ consumeSemicolon();
+
+ return node.finishThrowStatement(argument);
+ }
+
+ // 12.14 The try statement
+
+ function parseCatchClause() {
+ var param, body, node = new Node();
+
+ expectKeyword('catch');
+
+ expect('(');
+ if (match(')')) {
+ throwUnexpectedToken(lookahead);
+ }
+
+ param = parseVariableIdentifier();
+ // 12.14.1
+ if (strict && isRestrictedWord(param.name)) {
+ tolerateError(Messages.StrictCatchVariable);
+ }
+
+ expect(')');
+ body = parseBlock();
+ return node.finishCatchClause(param, body);
+ }
+
+ function parseTryStatement(node) {
+ var block, handlers = [], finalizer = null;
+
+ expectKeyword('try');
+
+ block = parseBlock();
+
+ if (matchKeyword('catch')) {
+ handlers.push(parseCatchClause());
+ }
+
+ if (matchKeyword('finally')) {
+ lex();
+ finalizer = parseBlock();
+ }
+
+ if (handlers.length === 0 && !finalizer) {
+ throwError(Messages.NoCatchOrFinally);
+ }
+
+ return node.finishTryStatement(block, [], handlers, finalizer);
+ }
+
+ // 12.15 The debugger statement
+
+ function parseDebuggerStatement(node) {
+ expectKeyword('debugger');
+
+ consumeSemicolon();
+
+ return node.finishDebuggerStatement();
+ }
+
+ // 12 Statements
+
+ function parseStatement() {
+ var type = lookahead.type,
+ expr,
+ labeledBody,
+ key,
+ node;
+
+ if (type === Token.EOF) {
+ throwUnexpectedToken(lookahead);
+ }
+
+ if (type === Token.Punctuator && lookahead.value === '{') {
+ return parseBlock();
+ }
+
+ node = new Node();
+
+ if (type === Token.Punctuator) {
+ switch (lookahead.value) {
+ case ';':
+ return parseEmptyStatement(node);
+ case '(':
+ return parseExpressionStatement(node);
+ default:
+ break;
+ }
+ } else if (type === Token.Keyword) {
+ switch (lookahead.value) {
+ case 'break':
+ return parseBreakStatement(node);
+ case 'continue':
+ return parseContinueStatement(node);
+ case 'debugger':
+ return parseDebuggerStatement(node);
+ case 'do':
+ return parseDoWhileStatement(node);
+ case 'for':
+ return parseForStatement(node);
+ case 'function':
+ return parseFunctionDeclaration(node);
+ case 'if':
+ return parseIfStatement(node);
+ case 'return':
+ return parseReturnStatement(node);
+ case 'switch':
+ return parseSwitchStatement(node);
+ case 'throw':
+ return parseThrowStatement(node);
+ case 'try':
+ return parseTryStatement(node);
+ case 'var':
+ return parseVariableStatement(node);
+ case 'while':
+ return parseWhileStatement(node);
+ case 'with':
+ return parseWithStatement(node);
+ default:
+ break;
+ }
+ }
+
+ expr = parseExpression();
+
+ // 12.12 Labelled Statements
+ if ((expr.type === Syntax.Identifier) && match(':')) {
+ lex();
+
+ key = '$' + expr.name;
+ if (Object.prototype.hasOwnProperty.call(state.labelSet, key)) {
+ throwError(Messages.Redeclaration, 'Label', expr.name);
+ }
+
+ state.labelSet[key] = true;
+ labeledBody = parseStatement();
+ delete state.labelSet[key];
+ return node.finishLabeledStatement(expr, labeledBody);
+ }
+
+ consumeSemicolon();
+
+ return node.finishExpressionStatement(expr);
+ }
+
+ // 13 Function Definition
+
+ function parseFunctionSourceElements() {
+ var sourceElement, sourceElements = [], token, directive, firstRestricted,
+ oldLabelSet, oldInIteration, oldInSwitch, oldInFunctionBody, oldParenthesisCount,
+ node = new Node();
+
+ expect('{');
+
+ while (index < length) {
+ if (lookahead.type !== Token.StringLiteral) {
+ break;
+ }
+ token = lookahead;
+
+ sourceElement = parseSourceElement();
+ sourceElements.push(sourceElement);
+ if (sourceElement.expression.type !== Syntax.Literal) {
+ // this is not directive
+ break;
+ }
+ directive = source.slice(token.start + 1, token.end - 1);
+ if (directive === 'use strict') {
+ strict = true;
+ if (firstRestricted) {
+ tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral);
+ }
+ } else {
+ if (!firstRestricted && token.octal) {
+ firstRestricted = token;
+ }
+ }
+ }
+
+ oldLabelSet = state.labelSet;
+ oldInIteration = state.inIteration;
+ oldInSwitch = state.inSwitch;
+ oldInFunctionBody = state.inFunctionBody;
+ oldParenthesisCount = state.parenthesizedCount;
+
+ state.labelSet = {};
+ state.inIteration = false;
+ state.inSwitch = false;
+ state.inFunctionBody = true;
+ state.parenthesizedCount = 0;
+
+ while (index < length) {
+ if (match('}')) {
+ break;
+ }
+ sourceElement = parseSourceElement();
+ if (typeof sourceElement === 'undefined') {
+ break;
+ }
+ sourceElements.push(sourceElement);
+ }
+
+ expect('}');
+
+ state.labelSet = oldLabelSet;
+ state.inIteration = oldInIteration;
+ state.inSwitch = oldInSwitch;
+ state.inFunctionBody = oldInFunctionBody;
+ state.parenthesizedCount = oldParenthesisCount;
+
+ return node.finishBlockStatement(sourceElements);
+ }
+
+ function validateParam(options, param, name) {
+ var key = '$' + name;
+ if (strict) {
+ if (isRestrictedWord(name)) {
+ options.stricted = param;
+ options.message = Messages.StrictParamName;
+ }
+ if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
+ options.stricted = param;
+ options.message = Messages.StrictParamDupe;
+ }
+ } else if (!options.firstRestricted) {
+ if (isRestrictedWord(name)) {
+ options.firstRestricted = param;
+ options.message = Messages.StrictParamName;
+ } else if (isStrictModeReservedWord(name)) {
+ options.firstRestricted = param;
+ options.message = Messages.StrictReservedWord;
+ } else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
+ options.firstRestricted = param;
+ options.message = Messages.StrictParamDupe;
+ }
+ }
+ options.paramSet[key] = true;
+ }
+
+ function parseParam(options) {
+ var token, param, def;
+
+ token = lookahead;
+ param = parseVariableIdentifier();
+ validateParam(options, token, token.value);
+ if (match('=')) {
+ lex();
+ def = parseAssignmentExpression();
+ ++options.defaultCount;
+ }
+
+ options.params.push(param);
+ options.defaults.push(def);
+
+ return !match(')');
+ }
+
+ function parseParams(firstRestricted) {
+ var options;
+
+ options = {
+ params: [],
+ defaultCount: 0,
+ defaults: [],
+ firstRestricted: firstRestricted
+ };
+
+ expect('(');
+
+ if (!match(')')) {
+ options.paramSet = {};
+ while (index < length) {
+ if (!parseParam(options)) {
+ break;
+ }
+ expect(',');
+ }
+ }
+
+ expect(')');
+
+ if (options.defaultCount === 0) {
+ options.defaults = [];
+ }
+
+ return {
+ params: options.params,
+ defaults: options.defaults,
+ stricted: options.stricted,
+ firstRestricted: options.firstRestricted,
+ message: options.message
+ };
+ }
+
+ function parseFunctionDeclaration() {
+ var id, params = [], defaults = [], body, token, stricted, tmp, firstRestricted, message, previousStrict, node = new Node();
+
+ expectKeyword('function');
+ token = lookahead;
+ id = parseVariableIdentifier();
+ if (strict) {
+ if (isRestrictedWord(token.value)) {
+ tolerateUnexpectedToken(token, Messages.StrictFunctionName);
+ }
+ } else {
+ if (isRestrictedWord(token.value)) {
+ firstRestricted = token;
+ message = Messages.StrictFunctionName;
+ } else if (isStrictModeReservedWord(token.value)) {
+ firstRestricted = token;
+ message = Messages.StrictReservedWord;
+ }
+ }
+
+ tmp = parseParams(firstRestricted);
+ params = tmp.params;
+ defaults = tmp.defaults;
+ stricted = tmp.stricted;
+ firstRestricted = tmp.firstRestricted;
+ if (tmp.message) {
+ message = tmp.message;
+ }
+
+ previousStrict = strict;
+ body = parseFunctionSourceElements();
+ if (strict && firstRestricted) {
+ throwUnexpectedToken(firstRestricted, message);
+ }
+ if (strict && stricted) {
+ tolerateUnexpectedToken(stricted, message);
+ }
+ strict = previousStrict;
+
+ return node.finishFunctionDeclaration(id, params, defaults, body);
+ }
+
+ function parseFunctionExpression() {
+ var token, id = null, stricted, firstRestricted, message, tmp,
+ params = [], defaults = [], body, previousStrict, node = new Node();
+
+ expectKeyword('function');
+
+ if (!match('(')) {
+ token = lookahead;
+ id = parseVariableIdentifier();
+ if (strict) {
+ if (isRestrictedWord(token.value)) {
+ tolerateUnexpectedToken(token, Messages.StrictFunctionName);
+ }
+ } else {
+ if (isRestrictedWord(token.value)) {
+ firstRestricted = token;
+ message = Messages.StrictFunctionName;
+ } else if (isStrictModeReservedWord(token.value)) {
+ firstRestricted = token;
+ message = Messages.StrictReservedWord;
+ }
+ }
+ }
+
+ tmp = parseParams(firstRestricted);
+ params = tmp.params;
+ defaults = tmp.defaults;
+ stricted = tmp.stricted;
+ firstRestricted = tmp.firstRestricted;
+ if (tmp.message) {
+ message = tmp.message;
+ }
+
+ previousStrict = strict;
+ body = parseFunctionSourceElements();
+ if (strict && firstRestricted) {
+ throwUnexpectedToken(firstRestricted, message);
+ }
+ if (strict && stricted) {
+ tolerateUnexpectedToken(stricted, message);
+ }
+ strict = previousStrict;
+
+ return node.finishFunctionExpression(id, params, defaults, body);
+ }
+
+ // 14 Program
+
+ function parseSourceElement() {
+ if (lookahead.type === Token.Keyword) {
+ switch (lookahead.value) {
+ case 'const':
+ case 'let':
+ return parseConstLetDeclaration(lookahead.value);
+ case 'function':
+ return parseFunctionDeclaration();
+ default:
+ return parseStatement();
+ }
+ }
+
+ if (lookahead.type !== Token.EOF) {
+ return parseStatement();
+ }
+ }
+
+ function parseSourceElements() {
+ var sourceElement, sourceElements = [], token, directive, firstRestricted;
+
+ while (index < length) {
+ token = lookahead;
+ if (token.type !== Token.StringLiteral) {
+ break;
+ }
+
+ sourceElement = parseSourceElement();
+ sourceElements.push(sourceElement);
+ if (sourceElement.expression.type !== Syntax.Literal) {
+ // this is not directive
+ break;
+ }
+ directive = source.slice(token.start + 1, token.end - 1);
+ if (directive === 'use strict') {
+ strict = true;
+ if (firstRestricted) {
+ tolerateUnexpectedToken(firstRestricted, Messages.StrictOctalLiteral);
+ }
+ } else {
+ if (!firstRestricted && token.octal) {
+ firstRestricted = token;
+ }
+ }
+ }
+
+ while (index < length) {
+ sourceElement = parseSourceElement();
+ /* istanbul ignore if */
+ if (typeof sourceElement === 'undefined') {
+ break;
+ }
+ sourceElements.push(sourceElement);
+ }
+ return sourceElements;
+ }
+
+ function parseProgram() {
+ var body, node;
+
+ skipComment();
+ peek();
+ node = new Node();
+ strict = false;
+
+ body = parseSourceElements();
+ return node.finishProgram(body);
+ }
+
+ function filterTokenLocation() {
+ var i, entry, token, tokens = [];
+
+ for (i = 0; i < extra.tokens.length; ++i) {
+ entry = extra.tokens[i];
+ token = {
+ type: entry.type,
+ value: entry.value
+ };
+ if (entry.regex) {
+ token.regex = {
+ pattern: entry.regex.pattern,
+ flags: entry.regex.flags
+ };
+ }
+ if (extra.range) {
+ token.range = entry.range;
+ }
+ if (extra.loc) {
+ token.loc = entry.loc;
+ }
+ tokens.push(token);
+ }
+
+ extra.tokens = tokens;
+ }
+
+ function tokenize(code, options) {
+ var toString,
+ tokens;
+
+ toString = String;
+ if (typeof code !== 'string' && !(code instanceof String)) {
+ code = toString(code);
+ }
+
+ source = code;
+ index = 0;
+ lineNumber = (source.length > 0) ? 1 : 0;
+ lineStart = 0;
+ length = source.length;
+ lookahead = null;
+ state = {
+ allowIn: true,
+ labelSet: {},
+ inFunctionBody: false,
+ inIteration: false,
+ inSwitch: false,
+ lastCommentStart: -1
+ };
+
+ extra = {};
+
+ // Options matching.
+ options = options || {};
+
+ // Of course we collect tokens here.
+ options.tokens = true;
+ extra.tokens = [];
+ extra.tokenize = true;
+ // The following two fields are necessary to compute the Regex tokens.
+ extra.openParenToken = -1;
+ extra.openCurlyToken = -1;
+
+ extra.range = (typeof options.range === 'boolean') && options.range;
+ extra.loc = (typeof options.loc === 'boolean') && options.loc;
+
+ if (typeof options.comment === 'boolean' && options.comment) {
+ extra.comments = [];
+ }
+ if (typeof options.tolerant === 'boolean' && options.tolerant) {
+ extra.errors = [];
+ }
+
+ try {
+ peek();
+ if (lookahead.type === Token.EOF) {
+ return extra.tokens;
+ }
+
+ lex();
+ while (lookahead.type !== Token.EOF) {
+ try {
+ lex();
+ } catch (lexError) {
+ if (extra.errors) {
+ extra.errors.push(lexError);
+ // We have to break on the first error
+ // to avoid infinite loops.
+ break;
+ } else {
+ throw lexError;
+ }
+ }
+ }
+
+ filterTokenLocation();
+ tokens = extra.tokens;
+ if (typeof extra.comments !== 'undefined') {
+ tokens.comments = extra.comments;
+ }
+ if (typeof extra.errors !== 'undefined') {
+ tokens.errors = extra.errors;
+ }
+ } catch (e) {
+ throw e;
+ } finally {
+ extra = {};
+ }
+ return tokens;
+ }
+
+ function parse(code, options) {
+ var program, toString;
+
+ toString = String;
+ if (typeof code !== 'string' && !(code instanceof String)) {
+ code = toString(code);
+ }
+
+ source = code;
+ index = 0;
+ lineNumber = (source.length > 0) ? 1 : 0;
+ lineStart = 0;
+ length = source.length;
+ lookahead = null;
+ state = {
+ allowIn: true,
+ labelSet: {},
+ parenthesisCount: 0,
+ inFunctionBody: false,
+ inIteration: false,
+ inSwitch: false,
+ lastCommentStart: -1
+ };
+
+ extra = {};
+ if (typeof options !== 'undefined') {
+ extra.range = (typeof options.range === 'boolean') && options.range;
+ extra.loc = (typeof options.loc === 'boolean') && options.loc;
+ extra.attachComment = (typeof options.attachComment === 'boolean') && options.attachComment;
+
+ if (extra.loc && options.source !== null && options.source !== undefined) {
+ extra.source = toString(options.source);
+ }
+
+ if (typeof options.tokens === 'boolean' && options.tokens) {
+ extra.tokens = [];
+ }
+ if (typeof options.comment === 'boolean' && options.comment) {
+ extra.comments = [];
+ }
+ if (typeof options.tolerant === 'boolean' && options.tolerant) {
+ extra.errors = [];
+ }
+ if (extra.attachComment) {
+ extra.range = true;
+ extra.comments = [];
+ extra.bottomRightStack = [];
+ extra.trailingComments = [];
+ extra.leadingComments = [];
+ }
+ }
+
+ try {
+ program = parseProgram();
+ if (typeof extra.comments !== 'undefined') {
+ program.comments = extra.comments;
+ }
+ if (typeof extra.tokens !== 'undefined') {
+ filterTokenLocation();
+ program.tokens = extra.tokens;
+ }
+ if (typeof extra.errors !== 'undefined') {
+ program.errors = extra.errors;
+ }
+ } catch (e) {
+ throw e;
+ } finally {
+ extra = {};
+ }
+
+ return program;
+ }
+
+ // Sync with *.json manifests.
+ exports.version = '2.0.0';
+
+ exports.tokenize = tokenize;
+
+ exports.parse = parse;
+
+ // Deep copy.
+ /* istanbul ignore next */
+ exports.Syntax = (function () {
+ var name, types = {};
+
+ if (typeof Object.create === 'function') {
+ types = Object.create(null);
+ }
+
+ for (name in Syntax) {
+ if (Syntax.hasOwnProperty(name)) {
+ types[name] = Syntax[name];
+ }
+ }
+
+ if (typeof Object.freeze === 'function') {
+ Object.freeze(types);
+ }
+
+ return types;
+ }());
+
+}));
+/* vim: set sw=4 ts=4 et tw=80 : */
+"use strict";
+/**
+ * Copyright (c) 2013 Bruno Jouhier
+ * MIT License
+ */
+(function(exports) {
+
+ ///
+ /// # Main galaxy module
+ ///
+ /// `var galaxy = require('galaxy');`
+ ///
+
+ var resume;
+
+ function link(src, name, dst) {
+ Object.defineProperty(src, name, {
+ configurable: false,
+ writable: true,
+ enumerable: false,
+ value: dst
+ });
+ return dst;
+ }
+
+
+ function makeArgs(i) {
+ if (i <= 0) return "";
+ return i > 1 ? makeArgs(i - 1) + ', a' + i : "a1";
+ }
+
+ // glob is the hidden global in which we store the context.
+ // it must be unique, even if we have several versions of the galaxy module.
+ var glob = (function() {
+ var gl = typeof global === "object" ? global : window;
+ // share the secret with streamline's global module.
+ var secret = "_20c7abceb95c4eb88b7ca1895b1170d1";
+ return gl[secret] || link(gl, secret, { context: {} });
+ })();
+
+ var stackHelper, stackHelperError;
+ try {
+ stackHelper = require('galaxy-stack');
+ } catch (ex) {
+ stackHelperError = ex.message;
+ }
+
+ function future(fn, args, i) {
+ var err, result, done, q = [],
+ self = this;
+ args = Array.prototype.slice.call(args);
+ args[i] = function(e, r) {
+ //if (arguments.length > 2) r = Array.prototype.slice.call(arguments, 1);
+ err = e, result = r, done = true;
+ q && q.forEach(function(f) {
+ f.call(self, e, r);
+ });
+ q = null;
+ };
+ fn.apply(this, args);
+ return function F(cb) {
+ if (typeof cb !== 'function') {
+ if (cb !== false) throw new Error("invalid argument #0: you must pass _ or !_");
+ return F;
+ }
+ if (done) cb.call(self, err, result);
+ else q.push(cb);
+ }
+ }
+
+
+ function isGenerator(val) {
+ return Object.prototype.toString.call(val) === "[object Generator]";
+ }
+
+ var PENDING = {};
+
+ function Frame(g) {
+ this.g = g;
+ this.prev = glob.frame;
+ g.frame = this;
+ this._info = null;
+ this.recurse = 0;
+ this.yielded = 0;
+ }
+
+ Object.defineProperty(Frame.prototype, "info", {
+ get: function() {
+ return this._info || stackHelper.getStackFrame(this.g);
+ }
+ });
+
+ Object.defineProperty(Frame.prototype, "name", {
+ get: function() { return this.info.functionName; }
+ });
+
+ Object.defineProperty(Frame.prototype, "file", {
+ get: function() { return this.info.scriptName; }
+ });
+
+ Object.defineProperty(Frame.prototype, "line", {
+ get: function() { return this.info.lineNumber; }
+ });
+
+ function pushFrame(g) {
+ glob.frame = g.frame = g.frame || new Frame(g);
+ glob.emitter.emit('enter', g.frame);
+ }
+
+ function popFrame(g) {
+ if (!glob.frame) return;
+ glob.emitter.emit('exit', g.frame);
+ glob.frame = glob.frame.prev;
+ }
+
+ var yielded = true;
+
+ function run(g, cb, options) {
+ var rsm = resume;
+ var emit = glob.emitter && stackHelper && function(ev, g) {
+ g.frame = g.frame || new Frame(g);
+ glob.emitter.emit(ev, g.frame);
+ }
+
+ try {
+ resume = function(err, val) {
+ if (emit && yielded) {
+ emit("resume", g);
+ yielded = false;
+ }
+ while (g) {
+ if (options && options.interrupt && options.interrupt()) return;
+ try {
+ // ES6 is deprecating send in favor of next. Following line makes us compatible with both.
+ var send = g.send || g.next;
+ var v = err ? g.throw (err) : send.call(g, val);
+ val = v.value;
+ err = null;
+ // if we get PENDING, the current call completed with a pending I/O
+ // resume will be called again when the I/O completes. So just save the context and return here.
+ if (val === PENDING) {
+ if (emit && !yielded) {
+ emit("yield", g);
+ yielded = true;
+ }
+ return;
+ }
+ // if we get [PENDING, e, r], the current call invoked its callback synchronously
+ // we just loop to send/throw what the callback gave us.
+ if (val && val[0] === PENDING) {
+ err = val[1];
+ val = val[2];
+ if (err) err = wrapError(err, g, resume);
+ }
+ // else, if g is done we unwind it we send val to the parent generator (or through cb if we are at the top)
+ else if (v.done) {
+ //g.close();
+ if (emit) popFrame(g);
+ g = g.prev;
+ }
+ // else if val is not a generator we have an error. Yield was not applied to a generators
+ else {
+ if (!isGenerator(val)) {
+ // but we accept an array of generators, and we parallelize in this case
+ if (!Array.isArray(val)) throw new Error("invalid value was yielded. Expected a generator, got " + val);
+ val = val.mapStar(-1, function*(elt) {
+ if (!isGenerator(elt)) throw new Error("invalid array element was yielded. Expected a generator, got " + elt);
+ return yield elt;
+ });
+ }
+ // we got a new generator which means that g called another generator function
+ // the new generator become current and we loop with g.send(undefined) (equiv to g.next())
+ val.prev = g;
+ g = val;
+ if (emit) pushFrame(g);
+ val = undefined;
+ }
+ } catch (ex) {
+ // the send/throw call failed.
+ // we unwind the current generator and we rethrow into the parent generator (or through cb if at the top)
+ //g.close();
+ err = wrapError(ex, g, resume);
+ if (emit) popFrame(g);
+ g = g.prev;
+ val = undefined;
+ }
+ }
+ // we have exhausted the stack of generators.
+ // return the result or error through the callback.
+ cb(err, val);
+ }
+
+ // start the resume loop
+ resume();
+ } finally {
+ // restore resume global
+ resume = rsm;
+ }
+ }
+
+ function mapResults(options, args) {
+ if (options && typeof options === "object") {
+ if (options.returnArray) return args;
+ if (options.returnObject) return options.returnObject.reduce(function(res, key, i) {
+ res[key] = args[i];
+ return res;
+ }, {});
+ }
+ return args[0];
+ }
+
+ function getTag(options, idx) {
+ if (options && typeof options === "object") {
+ if (options.returnArray) return "A" + idx;
+ if (options.returnObject) return "O" + options.returnObject.join('/') + idx;
+ }
+ return idx;
+ }
+
+ function invoke(that, fn, args, idx, options) {
+ if (fn['__unstarred__' + idx]) throw new Error("cannot invoke starred function: " + fn['__unstarred__' + idx]);
+ // Set things up so that call returns:
+ // * PENDING if it completes with a pending I/O (and cb will be called later)
+ // * [PENDING, e, r] if the callback is called synchronously.
+ var result = PENDING,
+ sync = true;
+ var rsm = resume;
+
+ // convert args to array so that args.length gets correctly set if idx is args.length
+ args = Array.prototype.slice.call(args, 0);
+ var cx = glob.context;
+ args[idx == null ? args.length : idx] = function(e, r) {
+ var oldContext = glob.context;
+ var oldResume = resume;
+ try {
+ if (options) r = mapResults(options, Array.prototype.slice.call(arguments, 1));
+ glob.context = cx;
+ resume = rsm;
+ if (sync) {
+ result = [PENDING, e, r];
+ } else {
+ resume(e, r);
+ }
+ } finally {
+ glob.context = oldContext;
+ resume = oldResume;
+ }
+ }
+ fn.apply(that, args);
+ sync = false;
+ return result;
+ }
+
+ function convertAPI(converter, api, idx) {
+ if (typeof idx === 'string') {
+ var fn = api[idx];
+ if (typeof fn !== 'function') throw new Error("not a function: " + idx);
+ return converter(fn.bind(api));
+ }
+ return Object.keys(api).reduce(function(result, key) {
+ var fn = api[key];
+ result[key] = (typeof fn === 'function' && !/Sync$/.test(fn.name)) ? converter(fn, idx) : fn;
+ return result;
+ }, {});
+ }
+
+ ///
+ /// ## API wrappers
+ ///
+ /// * `var genFn = galaxy.star(asyncFn, cbIndex)`
+ /// This function turns an asynchronous function into a generator function.
+ /// `asyncFn` is the asynchronous function.
+ /// `cbIndex` is the index of the callback parameter. It is optional.
+ /// If omitted the callback is assumed to be the last parameter of `asyncFn`.
+ var starTemplate = function star(fn, options) {
+ if (typeof fn === 'object') return convertAPI(exports.star, fn, options);
+
+ var idx = (options && typeof options === 'object') ? options.callbackIndex : options;
+ var idx2 = idx < 0 ? -(idx + 1) : idx;
+ var tag = getTag(options, idx);
+
+ var key = '__starred__' + tag;
+ if (fn[key]) return fn[key];
+
+ //if (idx == null) idx = fn.length - 1;
+
+ var F = function *() {
+ if (idx < 0) Array.prototype.splice.call(arguments, idx2, 0, null);
+ return (yield invoke(this, fn, arguments, idx2, options));
+ };
+ link(F, '__unstarred__' + tag, fn);
+ link(fn, key, F);
+ return F;
+ }
+
+ var starBody = starTemplate.toString();
+ starBody = starBody.substring(starBody.indexOf('{'));
+ var starrors = [];
+
+ function makeStarror(i) {
+ return eval("(function(fn, options)" + starBody.replace(/function\s*\*\s*\(\)/, "function*(" + makeArgs(i) + ")") + ")");
+ }
+
+ exports.star = function(fn, idx) {
+ var i = fn.length;
+ var starror = starrors[i] || (starrors[i] = makeStarror(i));
+ return starror(fn, idx);
+ }
+
+ /// * `var asyncFn = galaxy.unstar(genFn, cbIndex)`
+ /// This function converts in the other direction. It allows you to turn a generator function into an asynchronous function.
+ /// `genFn` is the generator function.
+ /// `cbIndex` is the index of the callback parameter. It is optional. If omitted the callback is added at the end of the parameter list of `genFn`.
+ ///
+ /// As previously mentioned these calls may also be applied to a whole module, or to any object containing functions.
+ /// `Sync` calls are skipped.
+ // entering is undocumented streamline parameter for future.
+ var unstarTemplate = function unstar(fn, options, entering) {
+ if (typeof fn === 'object') return convertAPI(exports.unstar, fn, options);
+
+ var idx = (options && typeof options === 'object') ? options.callbackIndex : options;
+ if (idx == null) idx = fn.length;
+ var idx2 = idx < 0 ? -(idx + 1) : idx;
+
+ var key = '__unstarred__' + idx;
+ if (fn[key]) return fn[key];
+
+ var F = function() {
+ var cb = arguments[idx2];
+ if (idx < 0) Array.prototype.splice.call(arguments, idx2, 1);
+ // preserve streamline future semantics in unstarred space.
+ if (typeof cb !== 'function') {
+ if (entering && !cb) cb = arguments[idx2] = function(err) { if (err) throw err; };
+ return ((options && options.promise) || future).call(this, F, arguments, idx2);
+ }
+ var g = fn.apply(this, arguments);
+ run.call(this, g, cb);
+ };
+ link(F, '__starred__' + idx, fn);
+ link(fn, key, F);
+ return F;
+ }
+
+ var unstarBody = unstarTemplate.toString();
+ unstarBody = unstarBody.substring(unstarBody.indexOf('{'));
+ var unstarrors = [];
+
+ function makeUnstarror(i) {
+ return eval("(function(fn, options, entering)" + unstarBody.replace(/function\s*\(\)/, "function(" + makeArgs(i) + ")") + ")");
+ }
+
+ exports.unstar = function(fn, idx, entering) {
+ var i = idx == null ? fn.length + 1 : fn.length;
+ var unstarror = unstarrors[i] || (unstarrors[i] = makeUnstarror(i));
+ return unstarror(fn, idx, entering);
+ }
+
+
+ ///
+ /// ## Parallelizing
+ ///
+ /// * `var genFn = galaxy.spin(generator)`
+ /// Start spinning a generator that you obtained by calling a starred function (without yield).
+ /// The generator will execute in parallel with other code, at the points where the code yields.
+ /// The returned value is a generator function on which you can yield later to obtain the result of the computation.
+ exports.spin = function(g, options) {
+ if (!isGenerator(g)) throw new Error("Invalid spin call, expected a generator, got " + g);
+ var that = this;
+ // use starTemplate rather than galaxy.star because future has arity of 1 and we want arity of 0
+ return starTemplate(future(function(cb) {
+ run.call(that, g, cb, options);
+ }, [], 0), 0);
+ }
+
+ /// * `fun = galaxy.funnel(max)`
+ /// limits the number of concurrent executions of a given code block.
+ ///
+ /// The `funnel` function is typically used with the following pattern:
+ ///
+ /// ``` javascript
+ /// // somewhere
+ /// var myFunnel = galaxy.funnel(10); // create a funnel that only allows 10 concurrent executions.
+ ///
+ /// // elsewhere
+ /// var result = yield myFunnel(function* () { /* code with at most 10 concurrent executions */ });
+ /// ```
+ ///
+ /// The `funnel` function can also be used to implement critical sections. Just set funnel's `max` parameter to 1.
+ ///
+ /// If `max` is set to 0, a default number of parallel executions is allowed.
+ /// This default number can be read and set via `galaxy.funnel.defaultSize`.
+ /// If `max` is negative, the funnel does not limit the level of parallelism.
+ ///
+ /// The funnel can be closed with `fun.close()`.
+ /// When a funnel is closed, the operations that are still in the funnel will continue but their callbacks
+ /// won't be called, and no other operation will enter the funnel.
+ exports.funnel = function(max) {
+ max = max == null ? -1 : max;
+ if (max === 0) max = funnel.defaultSize;
+ if (typeof max !== "number") throw new Error("bad max number: " + max);
+ var queue = [],
+ active = 0,
+ closed = false;
+
+ var fun = exports.star(function(fnStar, callback) {
+ var fn = exports.unstar(fnStar);
+ if (max < 0 || max == Infinity) return fn(callback);
+
+ queue.push({
+ fn: fn,
+ cb: callback
+ });
+
+ function _doOne() {
+ var current = queue.splice(0, 1)[0];
+ if (!current.cb) return current.fn();
+ active++;
+ current.fn(function(err, result) {
+ active--;
+ if (!closed) {
+ current.cb(err, result);
+ while (active < max && queue.length > 0) _doOne();
+ }
+ });
+ }
+
+ while (active < max && queue.length > 0) _doOne();
+ });
+ fun.close = function() {
+ queue = [], closed = true;
+ }
+ return fun;
+ }
+
+ exports.funnel.defaultSize = 4;
+
+ ///
+ /// ## Stable context (TLS-like)
+ ///
+ /// * `galaxy.context = ctx`
+ /// `ctx = galaxy.context`
+ /// Sets and gets the stable context.
+ Object.defineProperty(exports, 'context', {
+ set: function(val) {
+ glob.context = val;
+ },
+ get: function() {
+ return glob.context;
+ }
+ });
+
+ ///
+ /// ## Miscellaneous
+ ///
+ /// * `var genCreate = galaxy.new(genConstructor)`
+ /// Converts a constructor generator function to a _creator_ function.
+ /// `genConstructor` is a _starred_ constructor that may contain `yield` calls.
+ /// The returned `genCreate` is a _starred_ function that you can call as `yield genCreate(args)`
+
+ // undocumented idx is set by streamline because prototype is on unstarred function in this case
+ exports.new = function(constructor, idx) {
+ var key = '__new__' + idx;
+ if (constructor[key]) return constructor[key];
+
+ var F = function *() {
+ var that = Object.create((idx != null ? constructor['__unstarred__' + idx] : constructor).prototype);
+ yield constructor.apply(that, arguments);
+ return that;
+ };
+ link(constructor, key, F);
+ return F;
+ }
+
+ // undocumented helper for streamline compat
+ exports.invoke = function *(that, fn, args, options) {
+ var idx = (options && typeof options === 'object') ? options.callbackIndex : options;
+ var tag = getTag(options, idx);
+ if (typeof fn !== 'function') {
+ if (typeof that === 'function' && that['__starred__' + tag] && fn === 'call') {
+ return yield that['__starred__' + tag].apply(args[0], args.slice(1));
+ }
+ fn = that[fn];
+ }
+ return yield exports.star(fn, options).apply(that, args);
+ }
+
+ function wrapError(err, g, resume) {
+ if (!(err instanceof Error)) return err; // handle throw "some string";
+ if (err.__async__ && err.__async__.resume === resume) return err;
+ var continuations = [];
+ g = g.prev; // first frame will be in err.stack
+ if (stackHelper) {
+ for (var gg = g; gg; gg = gg.prev) {
+ continuations.push(stackHelper.getContinuation(gg));
+ }
+ }
+ err = Object.create(err);
+ Object.defineProperty(err, 'stack', {
+ get: function() {
+ return stackTrace(this);
+ }
+ });
+ link(err, "__async__", {
+ continuations: continuations,
+ generator: g,
+ resume: resume,
+ });
+ return err;
+ }
+
+ function stackTrace(err) {
+ var extra;
+ var starredStack = "";
+ while (extra = err.__async__) {
+ if (stackHelper) {
+ var frames = [];
+ for (var g = extra.generator; g; g = g.prev) {
+ var frame = stackHelper.getStackFrame(g, extra.continuations[frames.length]);
+ frames.push(frame);
+ }
+ starredStack = frames.filter(function(frame){
+ return !(frame.functionName === "exports.invoke" && /\/galaxy\/lib\/galaxy/.test(frame.scriptName));
+ }).map(function(frame) {
+ return ' at ' + frame.functionName + ' (' + frame.scriptName + ':' + frame.lineNumber + ':' + frame.column + ')';
+ }).join('\n') + '\n' + starredStack;
+ }
+ err = Object.getPrototypeOf(err);
+ }
+ if (!stackHelper) starredStack = ' UNAVAILABLE: ' + stackHelperError + '\n';
+
+ var rawStack = err.stack;
+ var cut = rawStack.indexOf(' at GeneratorFunctionPrototype');
+ if (cut < 0) cut = rawStack.indexOf('\n') + 1;
+ var result = rawStack.substring(0, cut) + //
+ ' <<< yield stack >>>\n' + starredStack + //
+ ' <<< raw stack >>>\n' + rawStack.substring(cut);
+ return result;
+ }
+
+ /// * `galaxy.main(function*() { ... })`
+ /// Wrapper for a main asynchronous script.
+ /// See the [tutorial](../tutorial/tutorial.md) for an example
+ exports.main = function(fn) {
+ var that = this;
+ exports.unstar(function*() {
+ yield fn.call(that);
+ })(function(err) {
+ if (err) throw err;
+ });
+ }
+})(typeof exports !== 'undefined' ? exports : (window.galaxy = window.galaxy || {}));"use strict";
+// template to expose escodegen server side
+(function() {
+ // load utils.code
+ var modules = {};
+ var mod = {};
+ (function(module) {
+ /*
+ Copyright (C) 2013-2014 Yusuke Suzuki
+ Copyright (C) 2014 Ivan Nikulin
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+(function () {
+ 'use strict';
+
+ var Regex, NON_ASCII_WHITESPACES;
+
+ // See `tools/generate-identifier-regex.js`.
+ Regex = {
+ NonAsciiIdentifierStart: new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]'),
+ NonAsciiIdentifierPart: new RegExp('[\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0300-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u0483-\u0487\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0669\u066E-\u06D3\u06D5-\u06DC\u06DF-\u06E8\u06EA-\u06FC\u06FF\u0710-\u074A\u074D-\u07B1\u07C0-\u07F5\u07FA\u0800-\u082D\u0840-\u085B\u08A0\u08A2-\u08AC\u08E4-\u08FE\u0900-\u0963\u0966-\u096F\u0971-\u0977\u0979-\u097F\u0981-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BC-\u09C4\u09C7\u09C8\u09CB-\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09E6-\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A59-\u0A5C\u0A5E\u0A66-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABC-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AD0\u0AE0-\u0AE3\u0AE6-\u0AEF\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3C-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B66-\u0B6F\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD0\u0BD7\u0BE6-\u0BEF\u0C01-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C58\u0C59\u0C60-\u0C63\u0C66-\u0C6F\u0C82\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBC-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CE6-\u0CEF\u0CF1\u0CF2\u0D02\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4E\u0D57\u0D60-\u0D63\u0D66-\u0D6F\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E4E\u0E50-\u0E59\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0EC8-\u0ECD\u0ED0-\u0ED9\u0EDC-\u0EDF\u0F00\u0F18\u0F19\u0F20-\u0F29\u0F35\u0F37\u0F39\u0F3E-\u0F47\u0F49-\u0F6C\u0F71-\u0F84\u0F86-\u0F97\u0F99-\u0FBC\u0FC6\u1000-\u1049\u1050-\u109D\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u135D-\u135F\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1714\u1720-\u1734\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17D3\u17D7\u17DC\u17DD\u17E0-\u17E9\u180B-\u180D\u1810-\u1819\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191C\u1920-\u192B\u1930-\u193B\u1946-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u19D0-\u19D9\u1A00-\u1A1B\u1A20-\u1A5E\u1A60-\u1A7C\u1A7F-\u1A89\u1A90-\u1A99\u1AA7\u1B00-\u1B4B\u1B50-\u1B59\u1B6B-\u1B73\u1B80-\u1BF3\u1C00-\u1C37\u1C40-\u1C49\u1C4D-\u1C7D\u1CD0-\u1CD2\u1CD4-\u1CF6\u1D00-\u1DE6\u1DFC-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u200C\u200D\u203F\u2040\u2054\u2071\u207F\u2090-\u209C\u20D0-\u20DC\u20E1\u20E5-\u20F0\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2160-\u2188\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D7F-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u302F\u3031-\u3035\u3038-\u303C\u3041-\u3096\u3099\u309A\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA62B\uA640-\uA66F\uA674-\uA67D\uA67F-\uA697\uA69F-\uA6F1\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA827\uA840-\uA873\uA880-\uA8C4\uA8D0-\uA8D9\uA8E0-\uA8F7\uA8FB\uA900-\uA92D\uA930-\uA953\uA960-\uA97C\uA980-\uA9C0\uA9CF-\uA9D9\uAA00-\uAA36\uAA40-\uAA4D\uAA50-\uAA59\uAA60-\uAA76\uAA7A\uAA7B\uAA80-\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF6\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABEA\uABEC\uABED\uABF0-\uABF9\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE00-\uFE0F\uFE20-\uFE26\uFE33\uFE34\uFE4D-\uFE4F\uFE70-\uFE74\uFE76-\uFEFC\uFF10-\uFF19\uFF21-\uFF3A\uFF3F\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]')
+ };
+
+ function isDecimalDigit(ch) {
+ return (ch >= 48 && ch <= 57); // 0..9
+ }
+
+ function isHexDigit(ch) {
+ return isDecimalDigit(ch) || // 0..9
+ (97 <= ch && ch <= 102) || // a..f
+ (65 <= ch && ch <= 70); // A..F
+ }
+
+ function isOctalDigit(ch) {
+ return (ch >= 48 && ch <= 55); // 0..7
+ }
+
+ // 7.2 White Space
+
+ NON_ASCII_WHITESPACES = [
+ 0x1680, 0x180E,
+ 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A,
+ 0x202F, 0x205F,
+ 0x3000,
+ 0xFEFF
+ ];
+
+ function isWhiteSpace(ch) {
+ return (ch === 0x20) || (ch === 0x09) || (ch === 0x0B) || (ch === 0x0C) || (ch === 0xA0) ||
+ (ch >= 0x1680 && NON_ASCII_WHITESPACES.indexOf(ch) >= 0);
+ }
+
+ // 7.3 Line Terminators
+
+ function isLineTerminator(ch) {
+ return (ch === 0x0A) || (ch === 0x0D) || (ch === 0x2028) || (ch === 0x2029);
+ }
+
+ // 7.6 Identifier Names and Identifiers
+
+ function isIdentifierStart(ch) {
+ return (ch >= 97 && ch <= 122) || // a..z
+ (ch >= 65 && ch <= 90) || // A..Z
+ (ch === 36) || (ch === 95) || // $ (dollar) and _ (underscore)
+ (ch === 92) || // \ (backslash)
+ ((ch >= 0x80) && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch)));
+ }
+
+ function isIdentifierPart(ch) {
+ return (ch >= 97 && ch <= 122) || // a..z
+ (ch >= 65 && ch <= 90) || // A..Z
+ (ch >= 48 && ch <= 57) || // 0..9
+ (ch === 36) || (ch === 95) || // $ (dollar) and _ (underscore)
+ (ch === 92) || // \ (backslash)
+ ((ch >= 0x80) && Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch)));
+ }
+
+ module.exports = {
+ isDecimalDigit: isDecimalDigit,
+ isHexDigit: isHexDigit,
+ isOctalDigit: isOctalDigit,
+ isWhiteSpace: isWhiteSpace,
+ isLineTerminator: isLineTerminator,
+ isIdentifierStart: isIdentifierStart,
+ isIdentifierPart: isIdentifierPart
+ };
+}());
+/* vim: set sw=4 ts=4 et tw=80 : */
+
+ })(mod);
+ modules.esutils = {
+ code: mod.exports,
+ };
+
+ // load estraverse
+ (function(exports) {
+ /*
+ Copyright (C) 2012-2013 Yusuke Suzuki
+ Copyright (C) 2012 Ariya Hidayat
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/*jslint vars:false, bitwise:true*/
+/*jshint indent:4*/
+/*global exports:true, define:true*/
+(function (root, factory) {
+ 'use strict';
+
+ // Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
+ // and plain browser loading,
+ if (typeof define === 'function' && define.amd) {
+ define(['exports'], factory);
+ } else if (typeof exports !== 'undefined') {
+ factory(exports);
+ } else {
+ factory((root.estraverse = {}));
+ }
+}(this, function clone(exports) {
+ 'use strict';
+
+ var Syntax,
+ isArray,
+ VisitorOption,
+ VisitorKeys,
+ objectCreate,
+ objectKeys,
+ BREAK,
+ SKIP,
+ REMOVE;
+
+ function ignoreJSHintError() { }
+
+ isArray = Array.isArray;
+ if (!isArray) {
+ isArray = function isArray(array) {
+ return Object.prototype.toString.call(array) === '[object Array]';
+ };
+ }
+
+ function deepCopy(obj) {
+ var ret = {}, key, val;
+ for (key in obj) {
+ if (obj.hasOwnProperty(key)) {
+ val = obj[key];
+ if (typeof val === 'object' && val !== null) {
+ ret[key] = deepCopy(val);
+ } else {
+ ret[key] = val;
+ }
+ }
+ }
+ return ret;
+ }
+
+ function shallowCopy(obj) {
+ var ret = {}, key;
+ for (key in obj) {
+ if (obj.hasOwnProperty(key)) {
+ ret[key] = obj[key];
+ }
+ }
+ return ret;
+ }
+ ignoreJSHintError(shallowCopy);
+
+ // based on LLVM libc++ upper_bound / lower_bound
+ // MIT License
+
+ function upperBound(array, func) {
+ var diff, len, i, current;
+
+ len = array.length;
+ i = 0;
+
+ while (len) {
+ diff = len >>> 1;
+ current = i + diff;
+ if (func(array[current])) {
+ len = diff;
+ } else {
+ i = current + 1;
+ len -= diff + 1;
+ }
+ }
+ return i;
+ }
+
+ function lowerBound(array, func) {
+ var diff, len, i, current;
+
+ len = array.length;
+ i = 0;
+
+ while (len) {
+ diff = len >>> 1;
+ current = i + diff;
+ if (func(array[current])) {
+ i = current + 1;
+ len -= diff + 1;
+ } else {
+ len = diff;
+ }
+ }
+ return i;
+ }
+ ignoreJSHintError(lowerBound);
+
+ objectCreate = Object.create || (function () {
+ function F() { }
+
+ return function (o) {
+ F.prototype = o;
+ return new F();
+ };
+ })();
+
+ objectKeys = Object.keys || function (o) {
+ var keys = [], key;
+ for (key in o) {
+ keys.push(key);
+ }
+ return keys;
+ };
+
+ function extend(to, from) {
+ objectKeys(from).forEach(function (key) {
+ to[key] = from[key];
+ });
+ return to;
+ }
+
+ Syntax = {
+ AssignmentExpression: 'AssignmentExpression',
+ ArrayExpression: 'ArrayExpression',
+ ArrayPattern: 'ArrayPattern',
+ ArrowFunctionExpression: 'ArrowFunctionExpression',
+ AwaitExpression: 'AwaitExpression', // CAUTION: It's deferred to ES7.
+ BlockStatement: 'BlockStatement',
+ BinaryExpression: 'BinaryExpression',
+ BreakStatement: 'BreakStatement',
+ CallExpression: 'CallExpression',
+ CatchClause: 'CatchClause',
+ ClassBody: 'ClassBody',
+ ClassDeclaration: 'ClassDeclaration',
+ ClassExpression: 'ClassExpression',
+ ComprehensionBlock: 'ComprehensionBlock', // CAUTION: It's deferred to ES7.
+ ComprehensionExpression: 'ComprehensionExpression', // CAUTION: It's deferred to ES7.
+ ConditionalExpression: 'ConditionalExpression',
+ ContinueStatement: 'ContinueStatement',
+ DebuggerStatement: 'DebuggerStatement',
+ DirectiveStatement: 'DirectiveStatement',
+ DoWhileStatement: 'DoWhileStatement',
+ EmptyStatement: 'EmptyStatement',
+ ExportBatchSpecifier: 'ExportBatchSpecifier',
+ ExportDeclaration: 'ExportDeclaration',
+ ExportSpecifier: 'ExportSpecifier',
+ ExpressionStatement: 'ExpressionStatement',
+ ForStatement: 'ForStatement',
+ ForInStatement: 'ForInStatement',
+ ForOfStatement: 'ForOfStatement',
+ FunctionDeclaration: 'FunctionDeclaration',
+ FunctionExpression: 'FunctionExpression',
+ GeneratorExpression: 'GeneratorExpression', // CAUTION: It's deferred to ES7.
+ Identifier: 'Identifier',
+ IfStatement: 'IfStatement',
+ ImportDeclaration: 'ImportDeclaration',
+ ImportDefaultSpecifier: 'ImportDefaultSpecifier',
+ ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
+ ImportSpecifier: 'ImportSpecifier',
+ Literal: 'Literal',
+ LabeledStatement: 'LabeledStatement',
+ LogicalExpression: 'LogicalExpression',
+ MemberExpression: 'MemberExpression',
+ MethodDefinition: 'MethodDefinition',
+ ModuleSpecifier: 'ModuleSpecifier',
+ NewExpression: 'NewExpression',
+ ObjectExpression: 'ObjectExpression',
+ ObjectPattern: 'ObjectPattern',
+ Program: 'Program',
+ Property: 'Property',
+ ReturnStatement: 'ReturnStatement',
+ SequenceExpression: 'SequenceExpression',
+ SpreadElement: 'SpreadElement',
+ SwitchStatement: 'SwitchStatement',
+ SwitchCase: 'SwitchCase',
+ TaggedTemplateExpression: 'TaggedTemplateExpression',
+ TemplateElement: 'TemplateElement',
+ TemplateLiteral: 'TemplateLiteral',
+ ThisExpression: 'ThisExpression',
+ ThrowStatement: 'ThrowStatement',
+ TryStatement: 'TryStatement',
+ UnaryExpression: 'UnaryExpression',
+ UpdateExpression: 'UpdateExpression',
+ VariableDeclaration: 'VariableDeclaration',
+ VariableDeclarator: 'VariableDeclarator',
+ WhileStatement: 'WhileStatement',
+ WithStatement: 'WithStatement',
+ YieldExpression: 'YieldExpression'
+ };
+
+ VisitorKeys = {
+ AssignmentExpression: ['left', 'right'],
+ ArrayExpression: ['elements'],
+ ArrayPattern: ['elements'],
+ ArrowFunctionExpression: ['params', 'defaults', 'rest', 'body'],
+ AwaitExpression: ['argument'], // CAUTION: It's deferred to ES7.
+ BlockStatement: ['body'],
+ BinaryExpression: ['left', 'right'],
+ BreakStatement: ['label'],
+ CallExpression: ['callee', 'arguments'],
+ CatchClause: ['param', 'body'],
+ ClassBody: ['body'],
+ ClassDeclaration: ['id', 'body', 'superClass'],
+ ClassExpression: ['id', 'body', 'superClass'],
+ ComprehensionBlock: ['left', 'right'], // CAUTION: It's deferred to ES7.
+ ComprehensionExpression: ['blocks', 'filter', 'body'], // CAUTION: It's deferred to ES7.
+ ConditionalExpression: ['test', 'consequent', 'alternate'],
+ ContinueStatement: ['label'],
+ DebuggerStatement: [],
+ DirectiveStatement: [],
+ DoWhileStatement: ['body', 'test'],
+ EmptyStatement: [],
+ ExportBatchSpecifier: [],
+ ExportDeclaration: ['declaration', 'specifiers', 'source'],
+ ExportSpecifier: ['id', 'name'],
+ ExpressionStatement: ['expression'],
+ ForStatement: ['init', 'test', 'update', 'body'],
+ ForInStatement: ['left', 'right', 'body'],
+ ForOfStatement: ['left', 'right', 'body'],
+ FunctionDeclaration: ['id', 'params', 'defaults', 'rest', 'body'],
+ FunctionExpression: ['id', 'params', 'defaults', 'rest', 'body'],
+ GeneratorExpression: ['blocks', 'filter', 'body'], // CAUTION: It's deferred to ES7.
+ Identifier: [],
+ IfStatement: ['test', 'consequent', 'alternate'],
+ ImportDeclaration: ['specifiers', 'source'],
+ ImportDefaultSpecifier: ['id'],
+ ImportNamespaceSpecifier: ['id'],
+ ImportSpecifier: ['id', 'name'],
+ Literal: [],
+ LabeledStatement: ['label', 'body'],
+ LogicalExpression: ['left', 'right'],
+ MemberExpression: ['object', 'property'],
+ MethodDefinition: ['key', 'value'],
+ ModuleSpecifier: [],
+ NewExpression: ['callee', 'arguments'],
+ ObjectExpression: ['properties'],
+ ObjectPattern: ['properties'],
+ Program: ['body'],
+ Property: ['key', 'value'],
+ ReturnStatement: ['argument'],
+ SequenceExpression: ['expressions'],
+ SpreadElement: ['argument'],
+ SwitchStatement: ['discriminant', 'cases'],
+ SwitchCase: ['test', 'consequent'],
+ TaggedTemplateExpression: ['tag', 'quasi'],
+ TemplateElement: [],
+ TemplateLiteral: ['quasis', 'expressions'],
+ ThisExpression: [],
+ ThrowStatement: ['argument'],
+ TryStatement: ['block', 'handlers', 'handler', 'guardedHandlers', 'finalizer'],
+ UnaryExpression: ['argument'],
+ UpdateExpression: ['argument'],
+ VariableDeclaration: ['declarations'],
+ VariableDeclarator: ['id', 'init'],
+ WhileStatement: ['test', 'body'],
+ WithStatement: ['object', 'body'],
+ YieldExpression: ['argument']
+ };
+
+ // unique id
+ BREAK = {};
+ SKIP = {};
+ REMOVE = {};
+
+ VisitorOption = {
+ Break: BREAK,
+ Skip: SKIP,
+ Remove: REMOVE
+ };
+
+ function Reference(parent, key) {
+ this.parent = parent;
+ this.key = key;
+ }
+
+ Reference.prototype.replace = function replace(node) {
+ this.parent[this.key] = node;
+ };
+
+ Reference.prototype.remove = function remove() {
+ if (isArray(this.parent)) {
+ this.parent.splice(this.key, 1);
+ return true;
+ } else {
+ this.replace(null);
+ return false;
+ }
+ };
+
+ function Element(node, path, wrap, ref) {
+ this.node = node;
+ this.path = path;
+ this.wrap = wrap;
+ this.ref = ref;
+ }
+
+ function Controller() { }
+
+ // API:
+ // return property path array from root to current node
+ Controller.prototype.path = function path() {
+ var i, iz, j, jz, result, element;
+
+ function addToPath(result, path) {
+ if (isArray(path)) {
+ for (j = 0, jz = path.length; j < jz; ++j) {
+ result.push(path[j]);
+ }
+ } else {
+ result.push(path);
+ }
+ }
+
+ // root node
+ if (!this.__current.path) {
+ return null;
+ }
+
+ // first node is sentinel, second node is root element
+ result = [];
+ for (i = 2, iz = this.__leavelist.length; i < iz; ++i) {
+ element = this.__leavelist[i];
+ addToPath(result, element.path);
+ }
+ addToPath(result, this.__current.path);
+ return result;
+ };
+
+ // API:
+ // return type of current node
+ Controller.prototype.type = function () {
+ var node = this.current();
+ return node.type || this.__current.wrap;
+ };
+
+ // API:
+ // return array of parent elements
+ Controller.prototype.parents = function parents() {
+ var i, iz, result;
+
+ // first node is sentinel
+ result = [];
+ for (i = 1, iz = this.__leavelist.length; i < iz; ++i) {
+ result.push(this.__leavelist[i].node);
+ }
+
+ return result;
+ };
+
+ // API:
+ // return current node
+ Controller.prototype.current = function current() {
+ return this.__current.node;
+ };
+
+ Controller.prototype.__execute = function __execute(callback, element) {
+ var previous, result;
+
+ result = undefined;
+
+ previous = this.__current;
+ this.__current = element;
+ this.__state = null;
+ if (callback) {
+ result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node);
+ }
+ this.__current = previous;
+
+ return result;
+ };
+
+ // API:
+ // notify control skip / break
+ Controller.prototype.notify = function notify(flag) {
+ this.__state = flag;
+ };
+
+ // API:
+ // skip child nodes of current node
+ Controller.prototype.skip = function () {
+ this.notify(SKIP);
+ };
+
+ // API:
+ // break traversals
+ Controller.prototype['break'] = function () {
+ this.notify(BREAK);
+ };
+
+ // API:
+ // remove node
+ Controller.prototype.remove = function () {
+ this.notify(REMOVE);
+ };
+
+ Controller.prototype.__initialize = function(root, visitor) {
+ this.visitor = visitor;
+ this.root = root;
+ this.__worklist = [];
+ this.__leavelist = [];
+ this.__current = null;
+ this.__state = null;
+ this.__fallback = visitor.fallback === 'iteration';
+ this.__keys = VisitorKeys;
+ if (visitor.keys) {
+ this.__keys = extend(objectCreate(this.__keys), visitor.keys);
+ }
+ };
+
+ function isNode(node) {
+ if (node == null) {
+ return false;
+ }
+ return typeof node === 'object' && typeof node.type === 'string';
+ }
+
+ function isProperty(nodeType, key) {
+ return (nodeType === Syntax.ObjectExpression || nodeType === Syntax.ObjectPattern) && 'properties' === key;
+ }
+
+ Controller.prototype.traverse = function traverse(root, visitor) {
+ var worklist,
+ leavelist,
+ element,
+ node,
+ nodeType,
+ ret,
+ key,
+ current,
+ current2,
+ candidates,
+ candidate,
+ sentinel;
+
+ this.__initialize(root, visitor);
+
+ sentinel = {};
+
+ // reference
+ worklist = this.__worklist;
+ leavelist = this.__leavelist;
+
+ // initialize
+ worklist.push(new Element(root, null, null, null));
+ leavelist.push(new Element(null, null, null, null));
+
+ while (worklist.length) {
+ element = worklist.pop();
+
+ if (element === sentinel) {
+ element = leavelist.pop();
+
+ ret = this.__execute(visitor.leave, element);
+
+ if (this.__state === BREAK || ret === BREAK) {
+ return;
+ }
+ continue;
+ }
+
+ if (element.node) {
+
+ ret = this.__execute(visitor.enter, element);
+
+ if (this.__state === BREAK || ret === BREAK) {
+ return;
+ }
+
+ worklist.push(sentinel);
+ leavelist.push(element);
+
+ if (this.__state === SKIP || ret === SKIP) {
+ continue;
+ }
+
+ node = element.node;
+ nodeType = element.wrap || node.type;
+ candidates = this.__keys[nodeType];
+ if (!candidates) {
+ if (this.__fallback) {
+ candidates = objectKeys(node);
+ } else {
+ throw new Error('Unknown node type ' + nodeType + '.');
+ }
+ }
+
+ current = candidates.length;
+ while ((current -= 1) >= 0) {
+ key = candidates[current];
+ candidate = node[key];
+ if (!candidate) {
+ continue;
+ }
+
+ if (isArray(candidate)) {
+ current2 = candidate.length;
+ while ((current2 -= 1) >= 0) {
+ if (!candidate[current2]) {
+ continue;
+ }
+ if (isProperty(nodeType, candidates[current])) {
+ element = new Element(candidate[current2], [key, current2], 'Property', null);
+ } else if (isNode(candidate[current2])) {
+ element = new Element(candidate[current2], [key, current2], null, null);
+ } else {
+ continue;
+ }
+ worklist.push(element);
+ }
+ } else if (isNode(candidate)) {
+ worklist.push(new Element(candidate, key, null, null));
+ }
+ }
+ }
+ }
+ };
+
+ Controller.prototype.replace = function replace(root, visitor) {
+ function removeElem(element) {
+ var i,
+ key,
+ nextElem,
+ parent;
+
+ if (element.ref.remove()) {
+ // When the reference is an element of an array.
+ key = element.ref.key;
+ parent = element.ref.parent;
+
+ // If removed from array, then decrease following items' keys.
+ i = worklist.length;
+ while (i--) {
+ nextElem = worklist[i];
+ if (nextElem.ref && nextElem.ref.parent === parent) {
+ if (nextElem.ref.key < key) {
+ break;
+ }
+ --nextElem.ref.key;
+ }
+ }
+ }
+ }
+
+ var worklist,
+ leavelist,
+ node,
+ nodeType,
+ target,
+ element,
+ current,
+ current2,
+ candidates,
+ candidate,
+ sentinel,
+ outer,
+ key;
+
+ this.__initialize(root, visitor);
+
+ sentinel = {};
+
+ // reference
+ worklist = this.__worklist;
+ leavelist = this.__leavelist;
+
+ // initialize
+ outer = {
+ root: root
+ };
+ element = new Element(root, null, null, new Reference(outer, 'root'));
+ worklist.push(element);
+ leavelist.push(element);
+
+ while (worklist.length) {
+ element = worklist.pop();
+
+ if (element === sentinel) {
+ element = leavelist.pop();
+
+ target = this.__execute(visitor.leave, element);
+
+ // node may be replaced with null,
+ // so distinguish between undefined and null in this place
+ if (target !== undefined && target !== BREAK && target !== SKIP && target !== REMOVE) {
+ // replace
+ element.ref.replace(target);
+ }
+
+ if (this.__state === REMOVE || target === REMOVE) {
+ removeElem(element);
+ }
+
+ if (this.__state === BREAK || target === BREAK) {
+ return outer.root;
+ }
+ continue;
+ }
+
+ target = this.__execute(visitor.enter, element);
+
+ // node may be replaced with null,
+ // so distinguish between undefined and null in this place
+ if (target !== undefined && target !== BREAK && target !== SKIP && target !== REMOVE) {
+ // replace
+ element.ref.replace(target);
+ element.node = target;
+ }
+
+ if (this.__state === REMOVE || target === REMOVE) {
+ removeElem(element);
+ element.node = null;
+ }
+
+ if (this.__state === BREAK || target === BREAK) {
+ return outer.root;
+ }
+
+ // node may be null
+ node = element.node;
+ if (!node) {
+ continue;
+ }
+
+ worklist.push(sentinel);
+ leavelist.push(element);
+
+ if (this.__state === SKIP || target === SKIP) {
+ continue;
+ }
+
+ nodeType = element.wrap || node.type;
+ candidates = this.__keys[nodeType];
+ if (!candidates) {
+ if (this.__fallback) {
+ candidates = objectKeys(node);
+ } else {
+ throw new Error('Unknown node type ' + nodeType + '.');
+ }
+ }
+
+ current = candidates.length;
+ while ((current -= 1) >= 0) {
+ key = candidates[current];
+ candidate = node[key];
+ if (!candidate) {
+ continue;
+ }
+
+ if (isArray(candidate)) {
+ current2 = candidate.length;
+ while ((current2 -= 1) >= 0) {
+ if (!candidate[current2]) {
+ continue;
+ }
+ if (isProperty(nodeType, candidates[current])) {
+ element = new Element(candidate[current2], [key, current2], 'Property', new Reference(candidate, current2));
+ } else if (isNode(candidate[current2])) {
+ element = new Element(candidate[current2], [key, current2], null, new Reference(candidate, current2));
+ } else {
+ continue;
+ }
+ worklist.push(element);
+ }
+ } else if (isNode(candidate)) {
+ worklist.push(new Element(candidate, key, null, new Reference(node, key)));
+ }
+ }
+ }
+
+ return outer.root;
+ };
+
+ function traverse(root, visitor) {
+ var controller = new Controller();
+ return controller.traverse(root, visitor);
+ }
+
+ function replace(root, visitor) {
+ var controller = new Controller();
+ return controller.replace(root, visitor);
+ }
+
+ function extendCommentRange(comment, tokens) {
+ var target;
+
+ target = upperBound(tokens, function search(token) {
+ return token.range[0] > comment.range[0];
+ });
+
+ comment.extendedRange = [comment.range[0], comment.range[1]];
+
+ if (target !== tokens.length) {
+ comment.extendedRange[1] = tokens[target].range[0];
+ }
+
+ target -= 1;
+ if (target >= 0) {
+ comment.extendedRange[0] = tokens[target].range[1];
+ }
+
+ return comment;
+ }
+
+ function attachComments(tree, providedComments, tokens) {
+ // At first, we should calculate extended comment ranges.
+ var comments = [], comment, len, i, cursor;
+
+ if (!tree.range) {
+ throw new Error('attachComments needs range information');
+ }
+
+ // tokens array is empty, we attach comments to tree as 'leadingComments'
+ if (!tokens.length) {
+ if (providedComments.length) {
+ for (i = 0, len = providedComments.length; i < len; i += 1) {
+ comment = deepCopy(providedComments[i]);
+ comment.extendedRange = [0, tree.range[0]];
+ comments.push(comment);
+ }
+ tree.leadingComments = comments;
+ }
+ return tree;
+ }
+
+ for (i = 0, len = providedComments.length; i < len; i += 1) {
+ comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));
+ }
+
+ // This is based on John Freeman's implementation.
+ cursor = 0;
+ traverse(tree, {
+ enter: function (node) {
+ var comment;
+
+ while (cursor < comments.length) {
+ comment = comments[cursor];
+ if (comment.extendedRange[1] > node.range[0]) {
+ break;
+ }
+
+ if (comment.extendedRange[1] === node.range[0]) {
+ if (!node.leadingComments) {
+ node.leadingComments = [];
+ }
+ node.leadingComments.push(comment);
+ comments.splice(cursor, 1);
+ } else {
+ cursor += 1;
+ }
+ }
+
+ // already out of owned node
+ if (cursor === comments.length) {
+ return VisitorOption.Break;
+ }
+
+ if (comments[cursor].extendedRange[0] > node.range[1]) {
+ return VisitorOption.Skip;
+ }
+ }
+ });
+
+ cursor = 0;
+ traverse(tree, {
+ leave: function (node) {
+ var comment;
+
+ while (cursor < comments.length) {
+ comment = comments[cursor];
+ if (node.range[1] < comment.extendedRange[0]) {
+ break;
+ }
+
+ if (node.range[1] === comment.extendedRange[0]) {
+ if (!node.trailingComments) {
+ node.trailingComments = [];
+ }
+ node.trailingComments.push(comment);
+ comments.splice(cursor, 1);
+ } else {
+ cursor += 1;
+ }
+ }
+
+ // already out of owned node
+ if (cursor === comments.length) {
+ return VisitorOption.Break;
+ }
+
+ if (comments[cursor].extendedRange[0] > node.range[1]) {
+ return VisitorOption.Skip;
+ }
+ }
+ });
+
+ return tree;
+ }
+
+ exports.version = '1.8.1-dev';
+ exports.Syntax = Syntax;
+ exports.traverse = traverse;
+ exports.replace = replace;
+ exports.attachComments = attachComments;
+ exports.VisitorKeys = VisitorKeys;
+ exports.VisitorOption = VisitorOption;
+ exports.Controller = Controller;
+ exports.cloneEnvironment = function () { return clone({}); };
+
+ return exports;
+}));
+/* vim: set sw=4 ts=4 et tw=80 : */
+
+ })(modules.estraverse = {});
+
+ modules['./package.json'] = {
+ "name": "streamline",
+ "description": "Asynchronous Javascript for dummies",
+ "version": "0.10.17",
+ "homepage": "http://github.com/Sage/streamlinejs",
+ "repository": {
+ "type": "git",
+ "url": "git://github.com/Sage/streamlinejs.git"
+ },
+ "engines": {
+ "node": ">=0.10.0"
+ },
+ "dependencies": {
+ "esprima": "^2.0.0",
+ "escodegen": "^1.6.1",
+ "source-map": "~0.1.43"
+ },
+ "optionalDependencies": {
+ "fibers": "^1.0.1",
+ "galaxy": "^0.1.11"
+ },
+ "author": "Bruno Jouhier",
+ "directories": {
+ "lib": "./lib",
+ "bin": "./bin"
+ },
+ "main": "index.js"
+}
+;
+
+ (function(require, exports) {
+ /*
+ Copyright (C) 2012-2014 Yusuke Suzuki
+ Copyright (C) 2015 Ingvar Stepanyan
+ Copyright (C) 2014 Ivan Nikulin
+ Copyright (C) 2012-2013 Michael Ficarra
+ Copyright (C) 2012-2013 Mathias Bynens
+ Copyright (C) 2013 Irakli Gozalishvili
+ Copyright (C) 2012 Robert Gust-Bardon
+ Copyright (C) 2012 John Freeman
+ Copyright (C) 2011-2012 Ariya Hidayat
+ Copyright (C) 2012 Joost-Wim Boekesteijn
+ Copyright (C) 2012 Kris Kowal
+ Copyright (C) 2012 Arpad Borsos
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*global exports:true, require:true, global:true*/
+(function () {
+ 'use strict';
+
+ var Syntax,
+ Precedence,
+ BinaryPrecedence,
+ SourceNode,
+ estraverse,
+ esutils,
+ isArray,
+ base,
+ indent,
+ json,
+ renumber,
+ hexadecimal,
+ quotes,
+ escapeless,
+ newline,
+ space,
+ parentheses,
+ semicolons,
+ safeConcatenation,
+ directive,
+ extra,
+ parse,
+ sourceMap,
+ sourceCode,
+ preserveBlankLines,
+ FORMAT_MINIFY,
+ FORMAT_DEFAULTS;
+
+ estraverse = require('estraverse');
+ esutils = require('esutils');
+
+ Syntax = estraverse.Syntax;
+
+ // Generation is done by generateExpression.
+ function isExpression(node) {
+ return CodeGenerator.Expression.hasOwnProperty(node.type);
+ }
+
+ // Generation is done by generateStatement.
+ function isStatement(node) {
+ return CodeGenerator.Statement.hasOwnProperty(node.type);
+ }
+
+ Precedence = {
+ Sequence: 0,
+ Yield: 1,
+ Await: 1,
+ Assignment: 1,
+ Conditional: 2,
+ ArrowFunction: 2,
+ LogicalOR: 3,
+ LogicalAND: 4,
+ BitwiseOR: 5,
+ BitwiseXOR: 6,
+ BitwiseAND: 7,
+ Equality: 8,
+ Relational: 9,
+ BitwiseSHIFT: 10,
+ Additive: 11,
+ Multiplicative: 12,
+ Unary: 13,
+ Postfix: 14,
+ Call: 15,
+ New: 16,
+ TaggedTemplate: 17,
+ Member: 18,
+ Primary: 19
+ };
+
+ BinaryPrecedence = {
+ '||': Precedence.LogicalOR,
+ '&&': Precedence.LogicalAND,
+ '|': Precedence.BitwiseOR,
+ '^': Precedence.BitwiseXOR,
+ '&': Precedence.BitwiseAND,
+ '==': Precedence.Equality,
+ '!=': Precedence.Equality,
+ '===': Precedence.Equality,
+ '!==': Precedence.Equality,
+ 'is': Precedence.Equality,
+ 'isnt': Precedence.Equality,
+ '<': Precedence.Relational,
+ '>': Precedence.Relational,
+ '<=': Precedence.Relational,
+ '>=': Precedence.Relational,
+ 'in': Precedence.Relational,
+ 'instanceof': Precedence.Relational,
+ '<<': Precedence.BitwiseSHIFT,
+ '>>': Precedence.BitwiseSHIFT,
+ '>>>': Precedence.BitwiseSHIFT,
+ '+': Precedence.Additive,
+ '-': Precedence.Additive,
+ '*': Precedence.Multiplicative,
+ '%': Precedence.Multiplicative,
+ '/': Precedence.Multiplicative
+ };
+
+ //Flags
+ var F_ALLOW_IN = 1,
+ F_ALLOW_CALL = 1 << 1,
+ F_ALLOW_UNPARATH_NEW = 1 << 2,
+ F_FUNC_BODY = 1 << 3,
+ F_DIRECTIVE_CTX = 1 << 4,
+ F_SEMICOLON_OPT = 1 << 5;
+
+ //Expression flag sets
+ //NOTE: Flag order:
+ // F_ALLOW_IN
+ // F_ALLOW_CALL
+ // F_ALLOW_UNPARATH_NEW
+ var E_FTT = F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW,
+ E_TTF = F_ALLOW_IN | F_ALLOW_CALL,
+ E_TTT = F_ALLOW_IN | F_ALLOW_CALL | F_ALLOW_UNPARATH_NEW,
+ E_TFF = F_ALLOW_IN,
+ E_FFT = F_ALLOW_UNPARATH_NEW,
+ E_TFT = F_ALLOW_IN | F_ALLOW_UNPARATH_NEW;
+
+ //Statement flag sets
+ //NOTE: Flag order:
+ // F_ALLOW_IN
+ // F_FUNC_BODY
+ // F_DIRECTIVE_CTX
+ // F_SEMICOLON_OPT
+ var S_TFFF = F_ALLOW_IN,
+ S_TFFT = F_ALLOW_IN | F_SEMICOLON_OPT,
+ S_FFFF = 0x00,
+ S_TFTF = F_ALLOW_IN | F_DIRECTIVE_CTX,
+ S_TTFF = F_ALLOW_IN | F_FUNC_BODY;
+
+ function getDefaultOptions() {
+ // default options
+ return {
+ indent: null,
+ base: null,
+ parse: null,
+ comment: false,
+ format: {
+ indent: {
+ style: ' ',
+ base: 0,
+ adjustMultilineComment: false
+ },
+ newline: '\n',
+ space: ' ',
+ json: false,
+ renumber: false,
+ hexadecimal: false,
+ quotes: 'single',
+ escapeless: false,
+ compact: false,
+ parentheses: true,
+ semicolons: true,
+ safeConcatenation: false,
+ preserveBlankLines: false
+ },
+ moz: {
+ comprehensionExpressionStartsWithAssignment: false,
+ starlessGenerator: false
+ },
+ sourceMap: null,
+ sourceMapRoot: null,
+ sourceMapWithCode: false,
+ directive: false,
+ raw: true,
+ verbatim: null,
+ sourceCode: null
+ };
+ }
+
+ function stringRepeat(str, num) {
+ var result = '';
+
+ for (num |= 0; num > 0; num >>>= 1, str += str) {
+ if (num & 1) {
+ result += str;
+ }
+ }
+
+ return result;
+ }
+
+ isArray = Array.isArray;
+ if (!isArray) {
+ isArray = function isArray(array) {
+ return Object.prototype.toString.call(array) === '[object Array]';
+ };
+ }
+
+ function hasLineTerminator(str) {
+ return (/[\r\n]/g).test(str);
+ }
+
+ function endsWithLineTerminator(str) {
+ var len = str.length;
+ return len && esutils.code.isLineTerminator(str.charCodeAt(len - 1));
+ }
+
+ function merge(target, override) {
+ var key;
+ for (key in override) {
+ if (override.hasOwnProperty(key)) {
+ target[key] = override[key];
+ }
+ }
+ return target;
+ }
+
+ function updateDeeply(target, override) {
+ var key, val;
+
+ function isHashObject(target) {
+ return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp);
+ }
+
+ for (key in override) {
+ if (override.hasOwnProperty(key)) {
+ val = override[key];
+ if (isHashObject(val)) {
+ if (isHashObject(target[key])) {
+ updateDeeply(target[key], val);
+ } else {
+ target[key] = updateDeeply({}, val);
+ }
+ } else {
+ target[key] = val;
+ }
+ }
+ }
+ return target;
+ }
+
+ function generateNumber(value) {
+ var result, point, temp, exponent, pos;
+
+ if (value !== value) {
+ throw new Error('Numeric literal whose value is NaN');
+ }
+ if (value < 0 || (value === 0 && 1 / value < 0)) {
+ throw new Error('Numeric literal whose value is negative');
+ }
+
+ if (value === 1 / 0) {
+ return json ? 'null' : renumber ? '1e400' : '1e+400';
+ }
+
+ result = '' + value;
+ if (!renumber || result.length < 3) {
+ return result;
+ }
+
+ point = result.indexOf('.');
+ if (!json && result.charCodeAt(0) === 0x30 /* 0 */ && point === 1) {
+ point = 0;
+ result = result.slice(1);
+ }
+ temp = result;
+ result = result.replace('e+', 'e');
+ exponent = 0;
+ if ((pos = temp.indexOf('e')) > 0) {
+ exponent = +temp.slice(pos + 1);
+ temp = temp.slice(0, pos);
+ }
+ if (point >= 0) {
+ exponent -= temp.length - point - 1;
+ temp = +(temp.slice(0, point) + temp.slice(point + 1)) + '';
+ }
+ pos = 0;
+ while (temp.charCodeAt(temp.length + pos - 1) === 0x30 /* 0 */) {
+ --pos;
+ }
+ if (pos !== 0) {
+ exponent -= pos;
+ temp = temp.slice(0, pos);
+ }
+ if (exponent !== 0) {
+ temp += 'e' + exponent;
+ }
+ if ((temp.length < result.length ||
+ (hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length)) &&
+ +temp === value) {
+ result = temp;
+ }
+
+ return result;
+ }
+
+ // Generate valid RegExp expression.
+ // This function is based on https://github.com/Constellation/iv Engine
+
+ function escapeRegExpCharacter(ch, previousIsBackslash) {
+ // not handling '\' and handling \u2028 or \u2029 to unicode escape sequence
+ if ((ch & ~1) === 0x2028) {
+ return (previousIsBackslash ? 'u' : '\\u') + ((ch === 0x2028) ? '2028' : '2029');
+ } else if (ch === 10 || ch === 13) { // \n, \r
+ return (previousIsBackslash ? '' : '\\') + ((ch === 10) ? 'n' : 'r');
+ }
+ return String.fromCharCode(ch);
+ }
+
+ function generateRegExp(reg) {
+ var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash;
+
+ result = reg.toString();
+
+ if (reg.source) {
+ // extract flag from toString result
+ match = result.match(/\/([^/]*)$/);
+ if (!match) {
+ return result;
+ }
+
+ flags = match[1];
+ result = '';
+
+ characterInBrack = false;
+ previousIsBackslash = false;
+ for (i = 0, iz = reg.source.length; i < iz; ++i) {
+ ch = reg.source.charCodeAt(i);
+
+ if (!previousIsBackslash) {
+ if (characterInBrack) {
+ if (ch === 93) { // ]
+ characterInBrack = false;
+ }
+ } else {
+ if (ch === 47) { // /
+ result += '\\';
+ } else if (ch === 91) { // [
+ characterInBrack = true;
+ }
+ }
+ result += escapeRegExpCharacter(ch, previousIsBackslash);
+ previousIsBackslash = ch === 92; // \
+ } else {
+ // if new RegExp("\\\n') is provided, create /\n/
+ result += escapeRegExpCharacter(ch, previousIsBackslash);
+ // prevent like /\\[/]/
+ previousIsBackslash = false;
+ }
+ }
+
+ return '/' + result + '/' + flags;
+ }
+
+ return result;
+ }
+
+ function escapeAllowedCharacter(code, next) {
+ var hex;
+
+ if (code === 0x08 /* \b */) {
+ return '\\b';
+ }
+
+ if (code === 0x0C /* \f */) {
+ return '\\f';
+ }
+
+ if (code === 0x09 /* \t */) {
+ return '\\t';
+ }
+
+ hex = code.toString(16).toUpperCase();
+ if (json || code > 0xFF) {
+ return '\\u' + '0000'.slice(hex.length) + hex;
+ } else if (code === 0x0000 && !esutils.code.isDecimalDigit(next)) {
+ return '\\0';
+ } else if (code === 0x000B /* \v */) { // '\v'
+ return '\\x0B';
+ } else {
+ return '\\x' + '00'.slice(hex.length) + hex;
+ }
+ }
+
+ function escapeDisallowedCharacter(code) {
+ if (code === 0x5C /* \ */) {
+ return '\\\\';
+ }
+
+ if (code === 0x0A /* \n */) {
+ return '\\n';
+ }
+
+ if (code === 0x0D /* \r */) {
+ return '\\r';
+ }
+
+ if (code === 0x2028) {
+ return '\\u2028';
+ }
+
+ if (code === 0x2029) {
+ return '\\u2029';
+ }
+
+ throw new Error('Incorrectly classified character');
+ }
+
+ function escapeDirective(str) {
+ var i, iz, code, quote;
+
+ quote = quotes === 'double' ? '"' : '\'';
+ for (i = 0, iz = str.length; i < iz; ++i) {
+ code = str.charCodeAt(i);
+ if (code === 0x27 /* ' */) {
+ quote = '"';
+ break;
+ } else if (code === 0x22 /* " */) {
+ quote = '\'';
+ break;
+ } else if (code === 0x5C /* \ */) {
+ ++i;
+ }
+ }
+
+ return quote + str + quote;
+ }
+
+ function escapeString(str) {
+ var result = '', i, len, code, singleQuotes = 0, doubleQuotes = 0, single, quote;
+
+ for (i = 0, len = str.length; i < len; ++i) {
+ code = str.charCodeAt(i);
+ if (code === 0x27 /* ' */) {
+ ++singleQuotes;
+ } else if (code === 0x22 /* " */) {
+ ++doubleQuotes;
+ } else if (code === 0x2F /* / */ && json) {
+ result += '\\';
+ } else if (esutils.code.isLineTerminator(code) || code === 0x5C /* \ */) {
+ result += escapeDisallowedCharacter(code);
+ continue;
+ } else if ((json && code < 0x20 /* SP */) || !(json || escapeless || (code >= 0x20 /* SP */ && code <= 0x7E /* ~ */))) {
+ result += escapeAllowedCharacter(code, str.charCodeAt(i + 1));
+ continue;
+ }
+ result += String.fromCharCode(code);
+ }
+
+ single = !(quotes === 'double' || (quotes === 'auto' && doubleQuotes < singleQuotes));
+ quote = single ? '\'' : '"';
+
+ if (!(single ? singleQuotes : doubleQuotes)) {
+ return quote + result + quote;
+ }
+
+ str = result;
+ result = quote;
+
+ for (i = 0, len = str.length; i < len; ++i) {
+ code = str.charCodeAt(i);
+ if ((code === 0x27 /* ' */ && single) || (code === 0x22 /* " */ && !single)) {
+ result += '\\';
+ }
+ result += String.fromCharCode(code);
+ }
+
+ return result + quote;
+ }
+
+ /**
+ * flatten an array to a string, where the array can contain
+ * either strings or nested arrays
+ */
+ function flattenToString(arr) {
+ var i, iz, elem, result = '';
+ for (i = 0, iz = arr.length; i < iz; ++i) {
+ elem = arr[i];
+ result += isArray(elem) ? flattenToString(elem) : elem;
+ }
+ return result;
+ }
+
+ /**
+ * convert generated to a SourceNode when source maps are enabled.
+ */
+ function toSourceNodeWhenNeeded(generated, node) {
+ if (!sourceMap) {
+ // with no source maps, generated is either an
+ // array or a string. if an array, flatten it.
+ // if a string, just return it
+ if (isArray(generated)) {
+ return flattenToString(generated);
+ } else {
+ return generated;
+ }
+ }
+ if (node == null) {
+ if (generated instanceof SourceNode) {
+ return generated;
+ } else {
+ node = {};
+ }
+ }
+ if (node.loc == null) {
+ return new SourceNode(null, null, sourceMap, generated, node.name || null);
+ }
+ return new SourceNode(node.loc.start.line, node.loc.start.column, (sourceMap === true ? node.loc.source || null : sourceMap), generated, node.name || null);
+ }
+
+ function noEmptySpace() {
+ return (space) ? space : ' ';
+ }
+
+ function join(left, right) {
+ var leftSource,
+ rightSource,
+ leftCharCode,
+ rightCharCode;
+
+ leftSource = toSourceNodeWhenNeeded(left).toString();
+ if (leftSource.length === 0) {
+ return [right];
+ }
+
+ rightSource = toSourceNodeWhenNeeded(right).toString();
+ if (rightSource.length === 0) {
+ return [left];
+ }
+
+ leftCharCode = leftSource.charCodeAt(leftSource.length - 1);
+ rightCharCode = rightSource.charCodeAt(0);
+
+ if ((leftCharCode === 0x2B /* + */ || leftCharCode === 0x2D /* - */) && leftCharCode === rightCharCode ||
+ esutils.code.isIdentifierPart(leftCharCode) && esutils.code.isIdentifierPart(rightCharCode) ||
+ leftCharCode === 0x2F /* / */ && rightCharCode === 0x69 /* i */) { // infix word operators all start with `i`
+ return [left, noEmptySpace(), right];
+ } else if (esutils.code.isWhiteSpace(leftCharCode) || esutils.code.isLineTerminator(leftCharCode) ||
+ esutils.code.isWhiteSpace(rightCharCode) || esutils.code.isLineTerminator(rightCharCode)) {
+ return [left, right];
+ }
+ return [left, space, right];
+ }
+
+ function addIndent(stmt) {
+ return [base, stmt];
+ }
+
+ function withIndent(fn) {
+ var previousBase;
+ previousBase = base;
+ base += indent;
+ fn(base);
+ base = previousBase;
+ }
+
+ function calculateSpaces(str) {
+ var i;
+ for (i = str.length - 1; i >= 0; --i) {
+ if (esutils.code.isLineTerminator(str.charCodeAt(i))) {
+ break;
+ }
+ }
+ return (str.length - 1) - i;
+ }
+
+ function adjustMultilineComment(value, specialBase) {
+ var array, i, len, line, j, spaces, previousBase, sn;
+
+ array = value.split(/\r\n|[\r\n]/);
+ spaces = Number.MAX_VALUE;
+
+ // first line doesn't have indentation
+ for (i = 1, len = array.length; i < len; ++i) {
+ line = array[i];
+ j = 0;
+ while (j < line.length && esutils.code.isWhiteSpace(line.charCodeAt(j))) {
+ ++j;
+ }
+ if (spaces > j) {
+ spaces = j;
+ }
+ }
+
+ if (typeof specialBase !== 'undefined') {
+ // pattern like
+ // {
+ // var t = 20; /*
+ // * this is comment
+ // */
+ // }
+ previousBase = base;
+ if (array[1][spaces] === '*') {
+ specialBase += ' ';
+ }
+ base = specialBase;
+ } else {
+ if (spaces & 1) {
+ // /*
+ // *
+ // */
+ // If spaces are odd number, above pattern is considered.
+ // We waste 1 space.
+ --spaces;
+ }
+ previousBase = base;
+ }
+
+ for (i = 1, len = array.length; i < len; ++i) {
+ sn = toSourceNodeWhenNeeded(addIndent(array[i].slice(spaces)));
+ array[i] = sourceMap ? sn.join('') : sn;
+ }
+
+ base = previousBase;
+
+ return array.join('\n');
+ }
+
+ function generateComment(comment, specialBase) {
+ if (comment.type === 'Line') {
+ if (endsWithLineTerminator(comment.value)) {
+ return '//' + comment.value;
+ } else {
+ // Always use LineTerminator
+ var result = '//' + comment.value;
+ if (!preserveBlankLines) {
+ result += '\n';
+ }
+ return result;
+ }
+ }
+ if (extra.format.indent.adjustMultilineComment && /[\n\r]/.test(comment.value)) {
+ return adjustMultilineComment('/*' + comment.value + '*/', specialBase);
+ }
+ return '/*' + comment.value + '*/';
+ }
+
+ function addComments(stmt, result) {
+ var i, len, comment, save, tailingToStatement, specialBase, fragment,
+ extRange, range, prevRange, prefix, infix, suffix, count;
+
+ if (stmt.leadingComments && stmt.leadingComments.length > 0) {
+ save = result;
+
+ if (preserveBlankLines) {
+ comment = stmt.leadingComments[0];
+ result = [];
+
+ extRange = comment.extendedRange;
+ range = comment.range;
+
+ prefix = sourceCode.substring(extRange[0], range[0]);
+ count = (prefix.match(/\n/g) || []).length;
+ if (count > 0) {
+ result.push(stringRepeat('\n', count));
+ result.push(addIndent(generateComment(comment)));
+ } else {
+ result.push(prefix);
+ result.push(generateComment(comment));
+ }
+
+ prevRange = range;
+
+ for (i = 1, len = stmt.leadingComments.length; i < len; i++) {
+ comment = stmt.leadingComments[i];
+ range = comment.range;
+
+ infix = sourceCode.substring(prevRange[1], range[0]);
+ count = (infix.match(/\n/g) || []).length;
+ result.push(stringRepeat('\n', count));
+ result.push(addIndent(generateComment(comment)));
+
+ prevRange = range;
+ }
+
+ suffix = sourceCode.substring(range[1], extRange[1]);
+ count = (suffix.match(/\n/g) || []).length;
+ result.push(stringRepeat('\n', count));
+ } else {
+ comment = stmt.leadingComments[0];
+ result = [];
+ if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) {
+ result.push('\n');
+ }
+ result.push(generateComment(comment));
+ if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result.push('\n');
+ }
+
+ for (i = 1, len = stmt.leadingComments.length; i < len; ++i) {
+ comment = stmt.leadingComments[i];
+ fragment = [generateComment(comment)];
+ if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
+ fragment.push('\n');
+ }
+ result.push(addIndent(fragment));
+ }
+ }
+
+ result.push(addIndent(save));
+ }
+
+ if (stmt.trailingComments) {
+
+ if (preserveBlankLines) {
+ comment = stmt.trailingComments[0];
+ extRange = comment.extendedRange;
+ range = comment.range;
+
+ prefix = sourceCode.substring(extRange[0], range[0]);
+ count = (prefix.match(/\n/g) || []).length;
+
+ if (count > 0) {
+ result.push(stringRepeat('\n', count));
+ result.push(addIndent(generateComment(comment)));
+ } else {
+ result.push(prefix);
+ result.push(generateComment(comment));
+ }
+ } else {
+ tailingToStatement = !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
+ specialBase = stringRepeat(' ', calculateSpaces(toSourceNodeWhenNeeded([base, result, indent]).toString()));
+ for (i = 0, len = stmt.trailingComments.length; i < len; ++i) {
+ comment = stmt.trailingComments[i];
+ if (tailingToStatement) {
+ // We assume target like following script
+ //
+ // var t = 20; /**
+ // * This is comment of t
+ // */
+ if (i === 0) {
+ // first case
+ result = [result, indent];
+ } else {
+ result = [result, specialBase];
+ }
+ result.push(generateComment(comment, specialBase));
+ } else {
+ result = [result, addIndent(generateComment(comment))];
+ }
+ if (i !== len - 1 && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result = [result, '\n'];
+ }
+ }
+ }
+ }
+
+ return result;
+ }
+
+ function generateBlankLines(start, end, result) {
+ var j, newlineCount = 0;
+
+ for (j = start; j < end; j++) {
+ if (sourceCode[j] === '\n') {
+ newlineCount++;
+ }
+ }
+
+ for (j = 1; j < newlineCount; j++) {
+ result.push(newline);
+ }
+ }
+
+ function parenthesize(text, current, should) {
+ if (current < should) {
+ return ['(', text, ')'];
+ }
+ return text;
+ }
+
+ function generateVerbatimString(string) {
+ var i, iz, result;
+ result = string.split(/\r\n|\n/);
+ for (i = 1, iz = result.length; i < iz; i++) {
+ result[i] = newline + base + result[i];
+ }
+ return result;
+ }
+
+ function generateVerbatim(expr, precedence) {
+ var verbatim, result, prec;
+ verbatim = expr[extra.verbatim];
+
+ if (typeof verbatim === 'string') {
+ result = parenthesize(generateVerbatimString(verbatim), Precedence.Sequence, precedence);
+ } else {
+ // verbatim is object
+ result = generateVerbatimString(verbatim.content);
+ prec = (verbatim.precedence != null) ? verbatim.precedence : Precedence.Sequence;
+ result = parenthesize(result, prec, precedence);
+ }
+
+ return toSourceNodeWhenNeeded(result, expr);
+ }
+
+ function CodeGenerator() {
+ }
+
+ // Helpers.
+
+ CodeGenerator.prototype.maybeBlock = function(stmt, flags) {
+ var result, noLeadingComment, that = this;
+
+ noLeadingComment = !extra.comment || !stmt.leadingComments;
+
+ if (stmt.type === Syntax.BlockStatement && noLeadingComment) {
+ return [space, this.generateStatement(stmt, flags)];
+ }
+
+ if (stmt.type === Syntax.EmptyStatement && noLeadingComment) {
+ return ';';
+ }
+
+ withIndent(function () {
+ result = [
+ newline,
+ addIndent(that.generateStatement(stmt, flags))
+ ];
+ });
+
+ return result;
+ };
+
+ CodeGenerator.prototype.maybeBlockSuffix = function (stmt, result) {
+ var ends = endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
+ if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) {
+ return [result, space];
+ }
+ if (ends) {
+ return [result, base];
+ }
+ return [result, newline, base];
+ };
+
+ function generateIdentifier(node) {
+ return toSourceNodeWhenNeeded(node.name, node);
+ }
+
+ function generateAsyncPrefix(node, spaceRequired) {
+ return node.async ? 'async' + (spaceRequired ? noEmptySpace() : space) : '';
+ }
+
+ function generateStarSuffix(node) {
+ var isGenerator = node.generator && !extra.moz.starlessGenerator;
+ return isGenerator ? '*' + space : '';
+ }
+
+ function generateMethodPrefix(prop) {
+ var func = prop.value;
+ if (func.async) {
+ return generateAsyncPrefix(func, !prop.computed);
+ } else {
+ // avoid space before method name
+ return generateStarSuffix(func) ? '*' : '';
+ }
+ }
+
+ CodeGenerator.prototype.generatePattern = function (node, precedence, flags) {
+ if (node.type === Syntax.Identifier) {
+ return generateIdentifier(node);
+ }
+ return this.generateExpression(node, precedence, flags);
+ };
+
+ CodeGenerator.prototype.generateFunctionParams = function (node) {
+ var i, iz, result, hasDefault;
+
+ hasDefault = false;
+
+ if (node.type === Syntax.ArrowFunctionExpression &&
+ !node.rest && (!node.defaults || node.defaults.length === 0) &&
+ node.params.length === 1 && node.params[0].type === Syntax.Identifier) {
+ // arg => { } case
+ result = [generateAsyncPrefix(node, true), generateIdentifier(node.params[0])];
+ } else {
+ result = node.type === Syntax.ArrowFunctionExpression ? [generateAsyncPrefix(node, false)] : [];
+ result.push('(');
+ if (node.defaults) {
+ hasDefault = true;
+ }
+ for (i = 0, iz = node.params.length; i < iz; ++i) {
+ if (hasDefault && node.defaults[i]) {
+ // Handle default values.
+ result.push(this.generateAssignment(node.params[i], node.defaults[i], '=', Precedence.Assignment, E_TTT));
+ } else {
+ result.push(this.generatePattern(node.params[i], Precedence.Assignment, E_TTT));
+ }
+ if (i + 1 < iz) {
+ result.push(',' + space);
+ }
+ }
+
+ if (node.rest) {
+ if (node.params.length) {
+ result.push(',' + space);
+ }
+ result.push('...');
+ result.push(generateIdentifier(node.rest));
+ }
+
+ result.push(')');
+ }
+
+ return result;
+ };
+
+ CodeGenerator.prototype.generateFunctionBody = function (node) {
+ var result, expr;
+
+ result = this.generateFunctionParams(node);
+
+ if (node.type === Syntax.ArrowFunctionExpression) {
+ result.push(space);
+ result.push('=>');
+ }
+
+ if (node.expression) {
+ result.push(space);
+ expr = this.generateExpression(node.body, Precedence.Assignment, E_TTT);
+ if (expr.toString().charAt(0) === '{') {
+ expr = ['(', expr, ')'];
+ }
+ result.push(expr);
+ } else {
+ result.push(this.maybeBlock(node.body, S_TTFF));
+ }
+
+ return result;
+ };
+
+ CodeGenerator.prototype.generateIterationForStatement = function (operator, stmt, flags) {
+ var result = ['for' + space + '('], that = this;
+ withIndent(function () {
+ if (stmt.left.type === Syntax.VariableDeclaration) {
+ withIndent(function () {
+ result.push(stmt.left.kind + noEmptySpace());
+ result.push(that.generateStatement(stmt.left.declarations[0], S_FFFF));
+ });
+ } else {
+ result.push(that.generateExpression(stmt.left, Precedence.Call, E_TTT));
+ }
+
+ result = join(result, operator);
+ result = [join(
+ result,
+ that.generateExpression(stmt.right, Precedence.Sequence, E_TTT)
+ ), ')'];
+ });
+ result.push(this.maybeBlock(stmt.body, flags));
+ return result;
+ };
+
+ CodeGenerator.prototype.generatePropertyKey = function (expr, computed) {
+ var result = [];
+
+ if (computed) {
+ result.push('[');
+ }
+
+ result.push(this.generateExpression(expr, Precedence.Sequence, E_TTT));
+ if (computed) {
+ result.push(']');
+ }
+
+ return result;
+ };
+
+ CodeGenerator.prototype.generateAssignment = function (left, right, operator, precedence, flags) {
+ if (Precedence.Assignment < precedence) {
+ flags |= F_ALLOW_IN;
+ }
+
+ return parenthesize(
+ [
+ this.generateExpression(left, Precedence.Call, flags),
+ space + operator + space,
+ this.generateExpression(right, Precedence.Assignment, flags)
+ ],
+ Precedence.Assignment,
+ precedence
+ );
+ };
+
+ CodeGenerator.prototype.semicolon = function (flags) {
+ if (!semicolons && flags & F_SEMICOLON_OPT) {
+ return '';
+ }
+ return ';';
+ };
+
+ // Statements.
+
+ CodeGenerator.Statement = {
+
+ BlockStatement: function (stmt, flags) {
+ var range, content, result = ['{', newline], that = this;
+
+ withIndent(function () {
+ // handle functions without any code
+ if (stmt.body.length === 0 && preserveBlankLines) {
+ range = stmt.range;
+ if (range[1] - range[0] > 2) {
+ content = sourceCode.substring(range[0] + 1, range[1] - 1);
+ if (content[0] === '\n') {
+ result = ['{'];
+ }
+ result.push(content);
+ }
+ }
+
+ var i, iz, fragment, bodyFlags;
+ bodyFlags = S_TFFF;
+ if (flags & F_FUNC_BODY) {
+ bodyFlags |= F_DIRECTIVE_CTX;
+ }
+
+ for (i = 0, iz = stmt.body.length; i < iz; ++i) {
+ if (preserveBlankLines) {
+ // handle spaces before the first line
+ if (i === 0) {
+ if (stmt.body[0].leadingComments) {
+ range = stmt.body[0].leadingComments[0].extendedRange;
+ content = sourceCode.substring(range[0], range[1]);
+ if (content[0] === '\n') {
+ result = ['{'];
+ }
+ }
+ if (!stmt.body[0].leadingComments) {
+ generateBlankLines(stmt.range[0], stmt.body[0].range[0], result);
+ }
+ }
+
+ // handle spaces between lines
+ if (i > 0) {
+ if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) {
+ generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result);
+ }
+ }
+ }
+
+ if (i === iz - 1) {
+ bodyFlags |= F_SEMICOLON_OPT;
+ }
+
+ if (stmt.body[i].leadingComments && preserveBlankLines) {
+ fragment = that.generateStatement(stmt.body[i], bodyFlags);
+ } else {
+ fragment = addIndent(that.generateStatement(stmt.body[i], bodyFlags));
+ }
+
+ result.push(fragment);
+ if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
+ if (preserveBlankLines && i < iz - 1) {
+ // don't add a new line if there are leading coments
+ // in the next statement
+ if (!stmt.body[i + 1].leadingComments) {
+ result.push(newline);
+ }
+ } else {
+ result.push(newline);
+ }
+ }
+
+ if (preserveBlankLines) {
+ // handle spaces after the last line
+ if (i === iz - 1) {
+ if (!stmt.body[i].trailingComments) {
+ generateBlankLines(stmt.body[i].range[1], stmt.range[1], result);
+ }
+ }
+ }
+ }
+ });
+
+ result.push(addIndent('}'));
+ return result;
+ },
+
+ BreakStatement: function (stmt, flags) {
+ if (stmt.label) {
+ return 'break ' + stmt.label.name + this.semicolon(flags);
+ }
+ return 'break' + this.semicolon(flags);
+ },
+
+ ContinueStatement: function (stmt, flags) {
+ if (stmt.label) {
+ return 'continue ' + stmt.label.name + this.semicolon(flags);
+ }
+ return 'continue' + this.semicolon(flags);
+ },
+
+ ClassBody: function (stmt, flags) {
+ var result = [ '{', newline], that = this;
+
+ withIndent(function (indent) {
+ var i, iz;
+
+ for (i = 0, iz = stmt.body.length; i < iz; ++i) {
+ result.push(indent);
+ result.push(that.generateExpression(stmt.body[i], Precedence.Sequence, E_TTT));
+ if (i + 1 < iz) {
+ result.push(newline);
+ }
+ }
+ });
+
+ if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result.push(newline);
+ }
+ result.push(base);
+ result.push('}');
+ return result;
+ },
+
+ ClassDeclaration: function (stmt, flags) {
+ var result, fragment;
+ result = ['class ' + stmt.id.name];
+ if (stmt.superClass) {
+ fragment = join('extends', this.generateExpression(stmt.superClass, Precedence.Assignment, E_TTT));
+ result = join(result, fragment);
+ }
+ result.push(space);
+ result.push(this.generateStatement(stmt.body, S_TFFT));
+ return result;
+ },
+
+ DirectiveStatement: function (stmt, flags) {
+ if (extra.raw && stmt.raw) {
+ return stmt.raw + this.semicolon(flags);
+ }
+ return escapeDirective(stmt.directive) + this.semicolon(flags);
+ },
+
+ DoWhileStatement: function (stmt, flags) {
+ // Because `do 42 while (cond)` is Syntax Error. We need semicolon.
+ var result = join('do', this.maybeBlock(stmt.body, S_TFFF));
+ result = this.maybeBlockSuffix(stmt.body, result);
+ return join(result, [
+ 'while' + space + '(',
+ this.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
+ ')' + this.semicolon(flags)
+ ]);
+ },
+
+ CatchClause: function (stmt, flags) {
+ var result, that = this;
+ withIndent(function () {
+ var guard;
+
+ result = [
+ 'catch' + space + '(',
+ that.generateExpression(stmt.param, Precedence.Sequence, E_TTT),
+ ')'
+ ];
+
+ if (stmt.guard) {
+ guard = that.generateExpression(stmt.guard, Precedence.Sequence, E_TTT);
+ result.splice(2, 0, ' if ', guard);
+ }
+ });
+ result.push(this.maybeBlock(stmt.body, S_TFFF));
+ return result;
+ },
+
+ DebuggerStatement: function (stmt, flags) {
+ return 'debugger' + this.semicolon(flags);
+ },
+
+ EmptyStatement: function (stmt, flags) {
+ return ';';
+ },
+
+ ExportDeclaration: function (stmt, flags) {
+ var result = [ 'export' ], bodyFlags, that = this;
+
+ bodyFlags = (flags & F_SEMICOLON_OPT) ? S_TFFT : S_TFFF;
+
+ // export default HoistableDeclaration[Default]
+ // export default AssignmentExpression[In] ;
+ if (stmt['default']) {
+ result = join(result, 'default');
+ if (isStatement(stmt.declaration)) {
+ result = join(result, this.generateStatement(stmt.declaration, bodyFlags));
+ } else {
+ result = join(result, this.generateExpression(stmt.declaration, Precedence.Assignment, E_TTT) + this.semicolon(flags));
+ }
+ return result;
+ }
+
+ // export VariableStatement
+ // export Declaration[Default]
+ if (stmt.declaration) {
+ return join(result, this.generateStatement(stmt.declaration, bodyFlags));
+ }
+
+ // export * FromClause ;
+ // export ExportClause[NoReference] FromClause ;
+ // export ExportClause ;
+ if (stmt.specifiers) {
+ if (stmt.specifiers.length === 0) {
+ result = join(result, '{' + space + '}');
+ } else if (stmt.specifiers[0].type === Syntax.ExportBatchSpecifier) {
+ result = join(result, this.generateExpression(stmt.specifiers[0], Precedence.Sequence, E_TTT));
+ } else {
+ result = join(result, '{');
+ withIndent(function (indent) {
+ var i, iz;
+ result.push(newline);
+ for (i = 0, iz = stmt.specifiers.length; i < iz; ++i) {
+ result.push(indent);
+ result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT));
+ if (i + 1 < iz) {
+ result.push(',' + newline);
+ }
+ }
+ });
+ if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result.push(newline);
+ }
+ result.push(base + '}');
+ }
+
+ if (stmt.source) {
+ result = join(result, [
+ 'from' + space,
+ // ModuleSpecifier
+ this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
+ this.semicolon(flags)
+ ]);
+ } else {
+ result.push(this.semicolon(flags));
+ }
+ }
+ return result;
+ },
+
+ ExpressionStatement: function (stmt, flags) {
+ var result, fragment;
+
+ function isClassPrefixed(fragment) {
+ var code;
+ if (fragment.slice(0, 5) !== 'class') {
+ return false;
+ }
+ code = fragment.charCodeAt(5);
+ return code === 0x7B /* '{' */ || esutils.code.isWhiteSpace(code) || esutils.code.isLineTerminator(code);
+ }
+
+ function isFunctionPrefixed(fragment) {
+ var code;
+ if (fragment.slice(0, 8) !== 'function') {
+ return false;
+ }
+ code = fragment.charCodeAt(8);
+ return code === 0x28 /* '(' */ || esutils.code.isWhiteSpace(code) || code === 0x2A /* '*' */ || esutils.code.isLineTerminator(code);
+ }
+
+ function isAsyncPrefixed(fragment) {
+ var code, i, iz;
+ if (fragment.slice(0, 5) !== 'async') {
+ return false;
+ }
+ if (!esutils.code.isWhiteSpace(fragment.charCodeAt(5))) {
+ return false;
+ }
+ for (i = 6, iz = fragment.length; i < iz; ++i) {
+ if (!esutils.code.isWhiteSpace(fragment.charCodeAt(i))) {
+ break;
+ }
+ }
+ if (i === iz) {
+ return false;
+ }
+ if (fragment.slice(i, i + 8) !== 'function') {
+ return false;
+ }
+ code = fragment.charCodeAt(i + 8);
+ return code === 0x28 /* '(' */ || esutils.code.isWhiteSpace(code) || code === 0x2A /* '*' */ || esutils.code.isLineTerminator(code);
+ }
+
+ result = [this.generateExpression(stmt.expression, Precedence.Sequence, E_TTT)];
+ // 12.4 '{', 'function', 'class' is not allowed in this position.
+ // wrap expression with parentheses
+ fragment = toSourceNodeWhenNeeded(result).toString();
+ if (fragment.charCodeAt(0) === 0x7B /* '{' */ || // ObjectExpression
+ isClassPrefixed(fragment) ||
+ isFunctionPrefixed(fragment) ||
+ isAsyncPrefixed(fragment) ||
+ (directive && (flags & F_DIRECTIVE_CTX) && stmt.expression.type === Syntax.Literal && typeof stmt.expression.value === 'string')) {
+ result = ['(', result, ')' + this.semicolon(flags)];
+ } else {
+ result.push(this.semicolon(flags));
+ }
+ return result;
+ },
+
+ ImportDeclaration: function (stmt, flags) {
+ // ES6: 15.2.1 valid import declarations:
+ // - import ImportClause FromClause ;
+ // - import ModuleSpecifier ;
+ var result, cursor, that = this;
+
+ // If no ImportClause is present,
+ // this should be `import ModuleSpecifier` so skip `from`
+ // ModuleSpecifier is StringLiteral.
+ if (stmt.specifiers.length === 0) {
+ // import ModuleSpecifier ;
+ return [
+ 'import',
+ space,
+ // ModuleSpecifier
+ this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
+ this.semicolon(flags)
+ ];
+ }
+
+ // import ImportClause FromClause ;
+ result = [
+ 'import'
+ ];
+ cursor = 0;
+
+ // ImportedBinding
+ if (stmt.specifiers[cursor].type === Syntax.ImportDefaultSpecifier) {
+ result = join(result, [
+ this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT)
+ ]);
+ ++cursor;
+ }
+
+ if (stmt.specifiers[cursor]) {
+ if (cursor !== 0) {
+ result.push(',');
+ }
+
+ if (stmt.specifiers[cursor].type === Syntax.ImportNamespaceSpecifier) {
+ // NameSpaceImport
+ result = join(result, [
+ space,
+ this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT)
+ ]);
+ } else {
+ // NamedImports
+ result.push(space + '{');
+
+ if ((stmt.specifiers.length - cursor) === 1) {
+ // import { ... } from "...";
+ result.push(space);
+ result.push(this.generateExpression(stmt.specifiers[cursor], Precedence.Sequence, E_TTT));
+ result.push(space + '}' + space);
+ } else {
+ // import {
+ // ...,
+ // ...,
+ // } from "...";
+ withIndent(function (indent) {
+ var i, iz;
+ result.push(newline);
+ for (i = cursor, iz = stmt.specifiers.length; i < iz; ++i) {
+ result.push(indent);
+ result.push(that.generateExpression(stmt.specifiers[i], Precedence.Sequence, E_TTT));
+ if (i + 1 < iz) {
+ result.push(',' + newline);
+ }
+ }
+ });
+ if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result.push(newline);
+ }
+ result.push(base + '}' + space);
+ }
+ }
+ }
+
+ result = join(result, [
+ 'from' + space,
+ // ModuleSpecifier
+ this.generateExpression(stmt.source, Precedence.Sequence, E_TTT),
+ this.semicolon(flags)
+ ]);
+ return result;
+ },
+
+ VariableDeclarator: function (stmt, flags) {
+ var itemFlags = (flags & F_ALLOW_IN) ? E_TTT : E_FTT;
+ if (stmt.init) {
+ return [
+ this.generateExpression(stmt.id, Precedence.Assignment, itemFlags),
+ space,
+ '=',
+ space,
+ this.generateExpression(stmt.init, Precedence.Assignment, itemFlags)
+ ];
+ }
+ return this.generatePattern(stmt.id, Precedence.Assignment, itemFlags);
+ },
+
+ VariableDeclaration: function (stmt, flags) {
+ // VariableDeclarator is typed as Statement,
+ // but joined with comma (not LineTerminator).
+ // So if comment is attached to target node, we should specialize.
+ var result, i, iz, node, bodyFlags, that = this;
+
+ result = [ stmt.kind ];
+
+ bodyFlags = (flags & F_ALLOW_IN) ? S_TFFF : S_FFFF;
+
+ function block() {
+ node = stmt.declarations[0];
+ if (extra.comment && node.leadingComments) {
+ result.push('\n');
+ result.push(addIndent(that.generateStatement(node, bodyFlags)));
+ } else {
+ result.push(noEmptySpace());
+ result.push(that.generateStatement(node, bodyFlags));
+ }
+
+ for (i = 1, iz = stmt.declarations.length; i < iz; ++i) {
+ node = stmt.declarations[i];
+ if (extra.comment && node.leadingComments) {
+ result.push(',' + newline);
+ result.push(addIndent(that.generateStatement(node, bodyFlags)));
+ } else {
+ result.push(',' + space);
+ result.push(that.generateStatement(node, bodyFlags));
+ }
+ }
+ }
+
+ if (stmt.declarations.length > 1) {
+ withIndent(block);
+ } else {
+ block();
+ }
+
+ result.push(this.semicolon(flags));
+
+ return result;
+ },
+
+ ThrowStatement: function (stmt, flags) {
+ return [join(
+ 'throw',
+ this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT)
+ ), this.semicolon(flags)];
+ },
+
+ TryStatement: function (stmt, flags) {
+ var result, i, iz, guardedHandlers;
+
+ result = ['try', this.maybeBlock(stmt.block, S_TFFF)];
+ result = this.maybeBlockSuffix(stmt.block, result);
+
+ if (stmt.handlers) {
+ // old interface
+ for (i = 0, iz = stmt.handlers.length; i < iz; ++i) {
+ result = join(result, this.generateStatement(stmt.handlers[i], S_TFFF));
+ if (stmt.finalizer || i + 1 !== iz) {
+ result = this.maybeBlockSuffix(stmt.handlers[i].body, result);
+ }
+ }
+ } else {
+ guardedHandlers = stmt.guardedHandlers || [];
+
+ for (i = 0, iz = guardedHandlers.length; i < iz; ++i) {
+ result = join(result, this.generateStatement(guardedHandlers[i], S_TFFF));
+ if (stmt.finalizer || i + 1 !== iz) {
+ result = this.maybeBlockSuffix(guardedHandlers[i].body, result);
+ }
+ }
+
+ // new interface
+ if (stmt.handler) {
+ if (isArray(stmt.handler)) {
+ for (i = 0, iz = stmt.handler.length; i < iz; ++i) {
+ result = join(result, this.generateStatement(stmt.handler[i], S_TFFF));
+ if (stmt.finalizer || i + 1 !== iz) {
+ result = this.maybeBlockSuffix(stmt.handler[i].body, result);
+ }
+ }
+ } else {
+ result = join(result, this.generateStatement(stmt.handler, S_TFFF));
+ if (stmt.finalizer) {
+ result = this.maybeBlockSuffix(stmt.handler.body, result);
+ }
+ }
+ }
+ }
+ if (stmt.finalizer) {
+ result = join(result, ['finally', this.maybeBlock(stmt.finalizer, S_TFFF)]);
+ }
+ return result;
+ },
+
+ SwitchStatement: function (stmt, flags) {
+ var result, fragment, i, iz, bodyFlags, that = this;
+ withIndent(function () {
+ result = [
+ 'switch' + space + '(',
+ that.generateExpression(stmt.discriminant, Precedence.Sequence, E_TTT),
+ ')' + space + '{' + newline
+ ];
+ });
+ if (stmt.cases) {
+ bodyFlags = S_TFFF;
+ for (i = 0, iz = stmt.cases.length; i < iz; ++i) {
+ if (i === iz - 1) {
+ bodyFlags |= F_SEMICOLON_OPT;
+ }
+ fragment = addIndent(this.generateStatement(stmt.cases[i], bodyFlags));
+ result.push(fragment);
+ if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
+ result.push(newline);
+ }
+ }
+ }
+ result.push(addIndent('}'));
+ return result;
+ },
+
+ SwitchCase: function (stmt, flags) {
+ var result, fragment, i, iz, bodyFlags, that = this;
+ withIndent(function () {
+ if (stmt.test) {
+ result = [
+ join('case', that.generateExpression(stmt.test, Precedence.Sequence, E_TTT)),
+ ':'
+ ];
+ } else {
+ result = ['default:'];
+ }
+
+ i = 0;
+ iz = stmt.consequent.length;
+ if (iz && stmt.consequent[0].type === Syntax.BlockStatement) {
+ fragment = that.maybeBlock(stmt.consequent[0], S_TFFF);
+ result.push(fragment);
+ i = 1;
+ }
+
+ if (i !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result.push(newline);
+ }
+
+ bodyFlags = S_TFFF;
+ for (; i < iz; ++i) {
+ if (i === iz - 1 && flags & F_SEMICOLON_OPT) {
+ bodyFlags |= F_SEMICOLON_OPT;
+ }
+ fragment = addIndent(that.generateStatement(stmt.consequent[i], bodyFlags));
+ result.push(fragment);
+ if (i + 1 !== iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
+ result.push(newline);
+ }
+ }
+ });
+ return result;
+ },
+
+ IfStatement: function (stmt, flags) {
+ var result, bodyFlags, semicolonOptional, that = this;
+ withIndent(function () {
+ result = [
+ 'if' + space + '(',
+ that.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
+ ')'
+ ];
+ });
+ semicolonOptional = flags & F_SEMICOLON_OPT;
+ bodyFlags = S_TFFF;
+ if (semicolonOptional) {
+ bodyFlags |= F_SEMICOLON_OPT;
+ }
+ if (stmt.alternate) {
+ result.push(this.maybeBlock(stmt.consequent, S_TFFF));
+ result = this.maybeBlockSuffix(stmt.consequent, result);
+ if (stmt.alternate.type === Syntax.IfStatement) {
+ result = join(result, ['else ', this.generateStatement(stmt.alternate, bodyFlags)]);
+ } else {
+ result = join(result, join('else', this.maybeBlock(stmt.alternate, bodyFlags)));
+ }
+ } else {
+ result.push(this.maybeBlock(stmt.consequent, bodyFlags));
+ }
+ return result;
+ },
+
+ ForStatement: function (stmt, flags) {
+ var result, that = this;
+ withIndent(function () {
+ result = ['for' + space + '('];
+ if (stmt.init) {
+ if (stmt.init.type === Syntax.VariableDeclaration) {
+ result.push(that.generateStatement(stmt.init, S_FFFF));
+ } else {
+ // F_ALLOW_IN becomes false.
+ result.push(that.generateExpression(stmt.init, Precedence.Sequence, E_FTT));
+ result.push(';');
+ }
+ } else {
+ result.push(';');
+ }
+
+ if (stmt.test) {
+ result.push(space);
+ result.push(that.generateExpression(stmt.test, Precedence.Sequence, E_TTT));
+ result.push(';');
+ } else {
+ result.push(';');
+ }
+
+ if (stmt.update) {
+ result.push(space);
+ result.push(that.generateExpression(stmt.update, Precedence.Sequence, E_TTT));
+ result.push(')');
+ } else {
+ result.push(')');
+ }
+ });
+
+ result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
+ return result;
+ },
+
+ ForInStatement: function (stmt, flags) {
+ return this.generateIterationForStatement('in', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF);
+ },
+
+ ForOfStatement: function (stmt, flags) {
+ return this.generateIterationForStatement('of', stmt, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF);
+ },
+
+ LabeledStatement: function (stmt, flags) {
+ return [stmt.label.name + ':', this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF)];
+ },
+
+ Program: function (stmt, flags) {
+ var result, fragment, i, iz, bodyFlags;
+ iz = stmt.body.length;
+ result = [safeConcatenation && iz > 0 ? '\n' : ''];
+ bodyFlags = S_TFTF;
+ for (i = 0; i < iz; ++i) {
+ if (!safeConcatenation && i === iz - 1) {
+ bodyFlags |= F_SEMICOLON_OPT;
+ }
+
+ if (preserveBlankLines) {
+ // handle spaces before the first line
+ if (i === 0) {
+ if (!stmt.body[0].leadingComments) {
+ generateBlankLines(stmt.range[0], stmt.body[i].range[0], result);
+ }
+ }
+
+ // handle spaces between lines
+ if (i > 0) {
+ if (!stmt.body[i - 1].trailingComments && !stmt.body[i].leadingComments) {
+ generateBlankLines(stmt.body[i - 1].range[1], stmt.body[i].range[0], result);
+ }
+ }
+ }
+
+ fragment = addIndent(this.generateStatement(stmt.body[i], bodyFlags));
+ result.push(fragment);
+ if (i + 1 < iz && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
+ if (preserveBlankLines) {
+ if (!stmt.body[i + 1].leadingComments) {
+ result.push(newline);
+ }
+ } else {
+ result.push(newline);
+ }
+ }
+
+ if (preserveBlankLines) {
+ // handle spaces after the last line
+ if (i === iz - 1) {
+ if (!stmt.body[i].trailingComments) {
+ generateBlankLines(stmt.body[i].range[1], stmt.range[1], result);
+ }
+ }
+ }
+ }
+ return result;
+ },
+
+ FunctionDeclaration: function (stmt, flags) {
+ return [
+ generateAsyncPrefix(stmt, true),
+ 'function',
+ generateStarSuffix(stmt) || noEmptySpace(),
+ generateIdentifier(stmt.id),
+ this.generateFunctionBody(stmt)
+ ];
+ },
+
+ ReturnStatement: function (stmt, flags) {
+ if (stmt.argument) {
+ return [join(
+ 'return',
+ this.generateExpression(stmt.argument, Precedence.Sequence, E_TTT)
+ ), this.semicolon(flags)];
+ }
+ return ['return' + this.semicolon(flags)];
+ },
+
+ WhileStatement: function (stmt, flags) {
+ var result, that = this;
+ withIndent(function () {
+ result = [
+ 'while' + space + '(',
+ that.generateExpression(stmt.test, Precedence.Sequence, E_TTT),
+ ')'
+ ];
+ });
+ result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
+ return result;
+ },
+
+ WithStatement: function (stmt, flags) {
+ var result, that = this;
+ withIndent(function () {
+ result = [
+ 'with' + space + '(',
+ that.generateExpression(stmt.object, Precedence.Sequence, E_TTT),
+ ')'
+ ];
+ });
+ result.push(this.maybeBlock(stmt.body, flags & F_SEMICOLON_OPT ? S_TFFT : S_TFFF));
+ return result;
+ }
+
+ };
+
+ merge(CodeGenerator.prototype, CodeGenerator.Statement);
+
+ // Expressions.
+
+ CodeGenerator.Expression = {
+
+ SequenceExpression: function (expr, precedence, flags) {
+ var result, i, iz;
+ if (Precedence.Sequence < precedence) {
+ flags |= F_ALLOW_IN;
+ }
+ result = [];
+ for (i = 0, iz = expr.expressions.length; i < iz; ++i) {
+ result.push(this.generateExpression(expr.expressions[i], Precedence.Assignment, flags));
+ if (i + 1 < iz) {
+ result.push(',' + space);
+ }
+ }
+ return parenthesize(result, Precedence.Sequence, precedence);
+ },
+
+ AssignmentExpression: function (expr, precedence, flags) {
+ return this.generateAssignment(expr.left, expr.right, expr.operator, precedence, flags);
+ },
+
+ ArrowFunctionExpression: function (expr, precedence, flags) {
+ return parenthesize(this.generateFunctionBody(expr), Precedence.ArrowFunction, precedence);
+ },
+
+ ConditionalExpression: function (expr, precedence, flags) {
+ if (Precedence.Conditional < precedence) {
+ flags |= F_ALLOW_IN;
+ }
+ return parenthesize(
+ [
+ this.generateExpression(expr.test, Precedence.LogicalOR, flags),
+ space + '?' + space,
+ this.generateExpression(expr.consequent, Precedence.Assignment, flags),
+ space + ':' + space,
+ this.generateExpression(expr.alternate, Precedence.Assignment, flags)
+ ],
+ Precedence.Conditional,
+ precedence
+ );
+ },
+
+ LogicalExpression: function (expr, precedence, flags) {
+ return this.BinaryExpression(expr, precedence, flags);
+ },
+
+ BinaryExpression: function (expr, precedence, flags) {
+ var result, currentPrecedence, fragment, leftSource;
+ currentPrecedence = BinaryPrecedence[expr.operator];
+
+ if (currentPrecedence < precedence) {
+ flags |= F_ALLOW_IN;
+ }
+
+ fragment = this.generateExpression(expr.left, currentPrecedence, flags);
+
+ leftSource = fragment.toString();
+
+ if (leftSource.charCodeAt(leftSource.length - 1) === 0x2F /* / */ && esutils.code.isIdentifierPart(expr.operator.charCodeAt(0))) {
+ result = [fragment, noEmptySpace(), expr.operator];
+ } else {
+ result = join(fragment, expr.operator);
+ }
+
+ fragment = this.generateExpression(expr.right, currentPrecedence + 1, flags);
+
+ if (expr.operator === '/' && fragment.toString().charAt(0) === '/' ||
+ expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') {
+ // If '/' concats with '/' or `<` concats with `!--`, it is interpreted as comment start
+ result.push(noEmptySpace());
+ result.push(fragment);
+ } else {
+ result = join(result, fragment);
+ }
+
+ if (expr.operator === 'in' && !(flags & F_ALLOW_IN)) {
+ return ['(', result, ')'];
+ }
+ return parenthesize(result, currentPrecedence, precedence);
+ },
+
+ CallExpression: function (expr, precedence, flags) {
+ var result, i, iz;
+ // F_ALLOW_UNPARATH_NEW becomes false.
+ result = [this.generateExpression(expr.callee, Precedence.Call, E_TTF)];
+ result.push('(');
+ for (i = 0, iz = expr['arguments'].length; i < iz; ++i) {
+ result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT));
+ if (i + 1 < iz) {
+ result.push(',' + space);
+ }
+ }
+ result.push(')');
+
+ if (!(flags & F_ALLOW_CALL)) {
+ return ['(', result, ')'];
+ }
+ return parenthesize(result, Precedence.Call, precedence);
+ },
+
+ NewExpression: function (expr, precedence, flags) {
+ var result, length, i, iz, itemFlags;
+ length = expr['arguments'].length;
+
+ // F_ALLOW_CALL becomes false.
+ // F_ALLOW_UNPARATH_NEW may become false.
+ itemFlags = (flags & F_ALLOW_UNPARATH_NEW && !parentheses && length === 0) ? E_TFT : E_TFF;
+
+ result = join(
+ 'new',
+ this.generateExpression(expr.callee, Precedence.New, itemFlags)
+ );
+
+ if (!(flags & F_ALLOW_UNPARATH_NEW) || parentheses || length > 0) {
+ result.push('(');
+ for (i = 0, iz = length; i < iz; ++i) {
+ result.push(this.generateExpression(expr['arguments'][i], Precedence.Assignment, E_TTT));
+ if (i + 1 < iz) {
+ result.push(',' + space);
+ }
+ }
+ result.push(')');
+ }
+
+ return parenthesize(result, Precedence.New, precedence);
+ },
+
+ MemberExpression: function (expr, precedence, flags) {
+ var result, fragment;
+
+ // F_ALLOW_UNPARATH_NEW becomes false.
+ result = [this.generateExpression(expr.object, Precedence.Call, (flags & F_ALLOW_CALL) ? E_TTF : E_TFF)];
+
+ if (expr.computed) {
+ result.push('[');
+ result.push(this.generateExpression(expr.property, Precedence.Sequence, flags & F_ALLOW_CALL ? E_TTT : E_TFT));
+ result.push(']');
+ } else {
+ if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') {
+ fragment = toSourceNodeWhenNeeded(result).toString();
+ // When the following conditions are all true,
+ // 1. No floating point
+ // 2. Don't have exponents
+ // 3. The last character is a decimal digit
+ // 4. Not hexadecimal OR octal number literal
+ // we should add a floating point.
+ if (
+ fragment.indexOf('.') < 0 &&
+ !/[eExX]/.test(fragment) &&
+ esutils.code.isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) &&
+ !(fragment.length >= 2 && fragment.charCodeAt(0) === 48) // '0'
+ ) {
+ result.push('.');
+ }
+ }
+ result.push('.');
+ result.push(generateIdentifier(expr.property));
+ }
+
+ return parenthesize(result, Precedence.Member, precedence);
+ },
+
+ UnaryExpression: function (expr, precedence, flags) {
+ var result, fragment, rightCharCode, leftSource, leftCharCode;
+ fragment = this.generateExpression(expr.argument, Precedence.Unary, E_TTT);
+
+ if (space === '') {
+ result = join(expr.operator, fragment);
+ } else {
+ result = [expr.operator];
+ if (expr.operator.length > 2) {
+ // delete, void, typeof
+ // get `typeof []`, not `typeof[]`
+ result = join(result, fragment);
+ } else {
+ // Prevent inserting spaces between operator and argument if it is unnecessary
+ // like, `!cond`
+ leftSource = toSourceNodeWhenNeeded(result).toString();
+ leftCharCode = leftSource.charCodeAt(leftSource.length - 1);
+ rightCharCode = fragment.toString().charCodeAt(0);
+
+ if (((leftCharCode === 0x2B /* + */ || leftCharCode === 0x2D /* - */) && leftCharCode === rightCharCode) ||
+ (esutils.code.isIdentifierPart(leftCharCode) && esutils.code.isIdentifierPart(rightCharCode))) {
+ result.push(noEmptySpace());
+ result.push(fragment);
+ } else {
+ result.push(fragment);
+ }
+ }
+ }
+ return parenthesize(result, Precedence.Unary, precedence);
+ },
+
+ YieldExpression: function (expr, precedence, flags) {
+ var result;
+ if (expr.delegate) {
+ result = 'yield*';
+ } else {
+ result = 'yield';
+ }
+ if (expr.argument) {
+ result = join(
+ result,
+ this.generateExpression(expr.argument, Precedence.Yield, E_TTT)
+ );
+ }
+ return parenthesize(result, Precedence.Yield, precedence);
+ },
+
+ AwaitExpression: function (expr, precedence, flags) {
+ var result = join(
+ expr.delegate ? 'await*' : 'await',
+ this.generateExpression(expr.argument, Precedence.Await, E_TTT)
+ );
+ return parenthesize(result, Precedence.Await, precedence);
+ },
+
+ UpdateExpression: function (expr, precedence, flags) {
+ if (expr.prefix) {
+ return parenthesize(
+ [
+ expr.operator,
+ this.generateExpression(expr.argument, Precedence.Unary, E_TTT)
+ ],
+ Precedence.Unary,
+ precedence
+ );
+ }
+ return parenthesize(
+ [
+ this.generateExpression(expr.argument, Precedence.Postfix, E_TTT),
+ expr.operator
+ ],
+ Precedence.Postfix,
+ precedence
+ );
+ },
+
+ FunctionExpression: function (expr, precedence, flags) {
+ var result = [
+ generateAsyncPrefix(expr, true),
+ 'function'
+ ];
+ if (expr.id) {
+ result.push(generateStarSuffix(expr) || noEmptySpace());
+ result.push(generateIdentifier(expr.id));
+ } else {
+ result.push(generateStarSuffix(expr) || space);
+ }
+ result.push(this.generateFunctionBody(expr));
+ return result;
+ },
+
+ ExportBatchSpecifier: function (expr, precedence, flags) {
+ return '*';
+ },
+
+ ArrayPattern: function (expr, precedence, flags) {
+ return this.ArrayExpression(expr, precedence, flags);
+ },
+
+ ArrayExpression: function (expr, precedence, flags) {
+ var result, multiline, that = this;
+ if (!expr.elements.length) {
+ return '[]';
+ }
+ multiline = expr.elements.length > 1;
+ result = ['[', multiline ? newline : ''];
+ withIndent(function (indent) {
+ var i, iz;
+ for (i = 0, iz = expr.elements.length; i < iz; ++i) {
+ if (!expr.elements[i]) {
+ if (multiline) {
+ result.push(indent);
+ }
+ if (i + 1 === iz) {
+ result.push(',');
+ }
+ } else {
+ result.push(multiline ? indent : '');
+ result.push(that.generateExpression(expr.elements[i], Precedence.Assignment, E_TTT));
+ }
+ if (i + 1 < iz) {
+ result.push(',' + (multiline ? newline : space));
+ }
+ }
+ });
+ if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result.push(newline);
+ }
+ result.push(multiline ? base : '');
+ result.push(']');
+ return result;
+ },
+
+ ClassExpression: function (expr, precedence, flags) {
+ var result, fragment;
+ result = ['class'];
+ if (expr.id) {
+ result = join(result, this.generateExpression(expr.id, Precedence.Sequence, E_TTT));
+ }
+ if (expr.superClass) {
+ fragment = join('extends', this.generateExpression(expr.superClass, Precedence.Assignment, E_TTT));
+ result = join(result, fragment);
+ }
+ result.push(space);
+ result.push(this.generateStatement(expr.body, S_TFFT));
+ return result;
+ },
+
+ MethodDefinition: function (expr, precedence, flags) {
+ var result, fragment;
+ if (expr['static']) {
+ result = ['static' + space];
+ } else {
+ result = [];
+ }
+ if (expr.kind === 'get' || expr.kind === 'set') {
+ fragment = [
+ join(expr.kind, this.generatePropertyKey(expr.key, expr.computed)),
+ this.generateFunctionBody(expr.value)
+ ];
+ } else {
+ fragment = [
+ generateMethodPrefix(expr),
+ this.generatePropertyKey(expr.key, expr.computed),
+ this.generateFunctionBody(expr.value)
+ ];
+ }
+ return join(result, fragment);
+ },
+
+ Property: function (expr, precedence, flags) {
+ if (expr.kind === 'get' || expr.kind === 'set') {
+ return [
+ expr.kind, noEmptySpace(),
+ this.generatePropertyKey(expr.key, expr.computed),
+ this.generateFunctionBody(expr.value)
+ ];
+ }
+
+ if (expr.shorthand) {
+ return this.generatePropertyKey(expr.key, expr.computed);
+ }
+
+ if (expr.method) {
+ return [
+ generateMethodPrefix(expr),
+ this.generatePropertyKey(expr.key, expr.computed),
+ this.generateFunctionBody(expr.value)
+ ];
+ }
+ return [
+ this.generatePropertyKey(expr.key, expr.computed),
+ ':' + space,
+ this.generateExpression(expr.value, Precedence.Assignment, E_TTT)
+ ];
+ },
+
+ ObjectExpression: function (expr, precedence, flags) {
+ var multiline, result, fragment, that = this;
+
+ if (!expr.properties.length) {
+ return '{}';
+ }
+ multiline = expr.properties.length > 1;
+
+ withIndent(function () {
+ fragment = that.generateExpression(expr.properties[0], Precedence.Sequence, E_TTT);
+ });
+
+ if (!multiline) {
+ // issues 4
+ // Do not transform from
+ // dejavu.Class.declare({
+ // method2: function () {}
+ // });
+ // to
+ // dejavu.Class.declare({method2: function () {
+ // }});
+ if (!hasLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
+ return [ '{', space, fragment, space, '}' ];
+ }
+ }
+
+ withIndent(function (indent) {
+ var i, iz;
+ result = [ '{', newline, indent, fragment ];
+
+ if (multiline) {
+ result.push(',' + newline);
+ for (i = 1, iz = expr.properties.length; i < iz; ++i) {
+ result.push(indent);
+ result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT));
+ if (i + 1 < iz) {
+ result.push(',' + newline);
+ }
+ }
+ }
+ });
+
+ if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result.push(newline);
+ }
+ result.push(base);
+ result.push('}');
+ return result;
+ },
+
+ ObjectPattern: function (expr, precedence, flags) {
+ var result, i, iz, multiline, property, that = this;
+ if (!expr.properties.length) {
+ return '{}';
+ }
+
+ multiline = false;
+ if (expr.properties.length === 1) {
+ property = expr.properties[0];
+ if (property.value.type !== Syntax.Identifier) {
+ multiline = true;
+ }
+ } else {
+ for (i = 0, iz = expr.properties.length; i < iz; ++i) {
+ property = expr.properties[i];
+ if (!property.shorthand) {
+ multiline = true;
+ break;
+ }
+ }
+ }
+ result = ['{', multiline ? newline : '' ];
+
+ withIndent(function (indent) {
+ var i, iz;
+ for (i = 0, iz = expr.properties.length; i < iz; ++i) {
+ result.push(multiline ? indent : '');
+ result.push(that.generateExpression(expr.properties[i], Precedence.Sequence, E_TTT));
+ if (i + 1 < iz) {
+ result.push(',' + (multiline ? newline : space));
+ }
+ }
+ });
+
+ if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
+ result.push(newline);
+ }
+ result.push(multiline ? base : '');
+ result.push('}');
+ return result;
+ },
+
+ ThisExpression: function (expr, precedence, flags) {
+ return 'this';
+ },
+
+ Identifier: function (expr, precedence, flags) {
+ return generateIdentifier(expr);
+ },
+
+ ImportDefaultSpecifier: function (expr, precedence, flags) {
+ return generateIdentifier(expr.id);
+ },
+
+ ImportNamespaceSpecifier: function (expr, precedence, flags) {
+ var result = ['*'];
+ if (expr.id) {
+ result.push(space + 'as' + noEmptySpace() + generateIdentifier(expr.id));
+ }
+ return result;
+ },
+
+ ImportSpecifier: function (expr, precedence, flags) {
+ return this.ExportSpecifier(expr, precedence, flags);
+ },
+
+ ExportSpecifier: function (expr, precedence, flags) {
+ var result = [ expr.id.name ];
+ if (expr.name) {
+ result.push(noEmptySpace() + 'as' + noEmptySpace() + generateIdentifier(expr.name));
+ }
+ return result;
+ },
+
+ Literal: function (expr, precedence, flags) {
+ var raw;
+ if (expr.hasOwnProperty('raw') && parse && extra.raw) {
+ try {
+ raw = parse(expr.raw).body[0].expression;
+ if (raw.type === Syntax.Literal) {
+ if (raw.value === expr.value) {
+ return expr.raw;
+ }
+ }
+ } catch (e) {
+ // not use raw property
+ }
+ }
+
+ if (expr.value === null) {
+ return 'null';
+ }
+
+ if (typeof expr.value === 'string') {
+ return escapeString(expr.value);
+ }
+
+ if (typeof expr.value === 'number') {
+ return generateNumber(expr.value);
+ }
+
+ if (typeof expr.value === 'boolean') {
+ return expr.value ? 'true' : 'false';
+ }
+
+ return generateRegExp(expr.value);
+ },
+
+ GeneratorExpression: function (expr, precedence, flags) {
+ return this.ComprehensionExpression(expr, precedence, flags);
+ },
+
+ ComprehensionExpression: function (expr, precedence, flags) {
+ // GeneratorExpression should be parenthesized with (...), ComprehensionExpression with [...]
+ // Due to https://bugzilla.mozilla.org/show_bug.cgi?id=883468 position of expr.body can differ in Spidermonkey and ES6
+
+ var result, i, iz, fragment, that = this;
+ result = (expr.type === Syntax.GeneratorExpression) ? ['('] : ['['];
+
+ if (extra.moz.comprehensionExpressionStartsWithAssignment) {
+ fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT);
+ result.push(fragment);
+ }
+
+ if (expr.blocks) {
+ withIndent(function () {
+ for (i = 0, iz = expr.blocks.length; i < iz; ++i) {
+ fragment = that.generateExpression(expr.blocks[i], Precedence.Sequence, E_TTT);
+ if (i > 0 || extra.moz.comprehensionExpressionStartsWithAssignment) {
+ result = join(result, fragment);
+ } else {
+ result.push(fragment);
+ }
+ }
+ });
+ }
+
+ if (expr.filter) {
+ result = join(result, 'if' + space);
+ fragment = this.generateExpression(expr.filter, Precedence.Sequence, E_TTT);
+ result = join(result, [ '(', fragment, ')' ]);
+ }
+
+ if (!extra.moz.comprehensionExpressionStartsWithAssignment) {
+ fragment = this.generateExpression(expr.body, Precedence.Assignment, E_TTT);
+
+ result = join(result, fragment);
+ }
+
+ result.push((expr.type === Syntax.GeneratorExpression) ? ')' : ']');
+ return result;
+ },
+
+ ComprehensionBlock: function (expr, precedence, flags) {
+ var fragment;
+ if (expr.left.type === Syntax.VariableDeclaration) {
+ fragment = [
+ expr.left.kind, noEmptySpace(),
+ this.generateStatement(expr.left.declarations[0], S_FFFF)
+ ];
+ } else {
+ fragment = this.generateExpression(expr.left, Precedence.Call, E_TTT);
+ }
+
+ fragment = join(fragment, expr.of ? 'of' : 'in');
+ fragment = join(fragment, this.generateExpression(expr.right, Precedence.Sequence, E_TTT));
+
+ return [ 'for' + space + '(', fragment, ')' ];
+ },
+
+ SpreadElement: function (expr, precedence, flags) {
+ return [
+ '...',
+ this.generateExpression(expr.argument, Precedence.Assignment, E_TTT)
+ ];
+ },
+
+ TaggedTemplateExpression: function (expr, precedence, flags) {
+ var itemFlags = E_TTF;
+ if (!(flags & F_ALLOW_CALL)) {
+ itemFlags = E_TFF;
+ }
+ var result = [
+ this.generateExpression(expr.tag, Precedence.Call, itemFlags),
+ this.generateExpression(expr.quasi, Precedence.Primary, E_FFT)
+ ];
+ return parenthesize(result, Precedence.TaggedTemplate, precedence);
+ },
+
+ TemplateElement: function (expr, precedence, flags) {
+ // Don't use "cooked". Since tagged template can use raw template
+ // representation. So if we do so, it breaks the script semantics.
+ return expr.value.raw;
+ },
+
+ TemplateLiteral: function (expr, precedence, flags) {
+ var result, i, iz;
+ result = [ '`' ];
+ for (i = 0, iz = expr.quasis.length; i < iz; ++i) {
+ result.push(this.generateExpression(expr.quasis[i], Precedence.Primary, E_TTT));
+ if (i + 1 < iz) {
+ result.push('${' + space);
+ result.push(this.generateExpression(expr.expressions[i], Precedence.Sequence, E_TTT));
+ result.push(space + '}');
+ }
+ }
+ result.push('`');
+ return result;
+ },
+
+ ModuleSpecifier: function (expr, precedence, flags) {
+ return this.Literal(expr, precedence, flags);
+ }
+
+ };
+
+ merge(CodeGenerator.prototype, CodeGenerator.Expression);
+
+ CodeGenerator.prototype.generateExpression = function (expr, precedence, flags) {
+ var result, type;
+
+ type = expr.type || Syntax.Property;
+
+ if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) {
+ return generateVerbatim(expr, precedence);
+ }
+
+ result = this[type](expr, precedence, flags);
+
+
+ if (extra.comment) {
+ result = addComments(expr,result);
+ }
+ return toSourceNodeWhenNeeded(result, expr);
+ };
+
+ CodeGenerator.prototype.generateStatement = function (stmt, flags) {
+ var result,
+ fragment;
+
+ result = this[stmt.type](stmt, flags);
+
+ // Attach comments
+
+ if (extra.comment) {
+ result = addComments(stmt, result);
+ }
+
+ fragment = toSourceNodeWhenNeeded(result).toString();
+ if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\n') {
+ result = sourceMap ? toSourceNodeWhenNeeded(result).replaceRight(/\s+$/, '') : fragment.replace(/\s+$/, '');
+ }
+
+ return toSourceNodeWhenNeeded(result, stmt);
+ };
+
+ function generateInternal(node) {
+ var codegen;
+
+ codegen = new CodeGenerator();
+ if (isStatement(node)) {
+ return codegen.generateStatement(node, S_TFFF);
+ }
+
+ if (isExpression(node)) {
+ return codegen.generateExpression(node, Precedence.Sequence, E_TTT);
+ }
+
+ throw new Error('Unknown node type: ' + node.type);
+ }
+
+ function generate(node, options) {
+ var defaultOptions = getDefaultOptions(), result, pair;
+
+ if (options != null) {
+ // Obsolete options
+ //
+ // `options.indent`
+ // `options.base`
+ //
+ // Instead of them, we can use `option.format.indent`.
+ if (typeof options.indent === 'string') {
+ defaultOptions.format.indent.style = options.indent;
+ }
+ if (typeof options.base === 'number') {
+ defaultOptions.format.indent.base = options.base;
+ }
+ options = updateDeeply(defaultOptions, options);
+ indent = options.format.indent.style;
+ if (typeof options.base === 'string') {
+ base = options.base;
+ } else {
+ base = stringRepeat(indent, options.format.indent.base);
+ }
+ } else {
+ options = defaultOptions;
+ indent = options.format.indent.style;
+ base = stringRepeat(indent, options.format.indent.base);
+ }
+ json = options.format.json;
+ renumber = options.format.renumber;
+ hexadecimal = json ? false : options.format.hexadecimal;
+ quotes = json ? 'double' : options.format.quotes;
+ escapeless = options.format.escapeless;
+ newline = options.format.newline;
+ space = options.format.space;
+ if (options.format.compact) {
+ newline = space = indent = base = '';
+ }
+ parentheses = options.format.parentheses;
+ semicolons = options.format.semicolons;
+ safeConcatenation = options.format.safeConcatenation;
+ directive = options.directive;
+ parse = json ? null : options.parse;
+ sourceMap = options.sourceMap;
+ sourceCode = options.sourceCode;
+ preserveBlankLines = options.format.preserveBlankLines && sourceCode !== null;
+ extra = options;
+
+ if (sourceMap) {
+ if (!exports.browser) {
+ // We assume environment is node.js
+ // And prevent from including source-map by browserify
+ SourceNode = require('source-map').SourceNode;
+ } else {
+ SourceNode = global.sourceMap.SourceNode;
+ }
+ }
+
+ result = generateInternal(node);
+
+ if (!sourceMap) {
+ pair = {code: result.toString(), map: null};
+ return options.sourceMapWithCode ? pair : pair.code;
+ }
+
+
+ pair = result.toStringWithSourceMap({
+ file: options.file,
+ sourceRoot: options.sourceMapRoot
+ });
+
+ if (options.sourceContent) {
+ pair.map.setSourceContent(options.sourceMap,
+ options.sourceContent);
+ }
+
+ if (options.sourceMapWithCode) {
+ return pair;
+ }
+
+ return pair.map.toString();
+ }
+
+ FORMAT_MINIFY = {
+ indent: {
+ style: '',
+ base: 0
+ },
+ renumber: true,
+ hexadecimal: true,
+ quotes: 'auto',
+ escapeless: true,
+ compact: true,
+ parentheses: false,
+ semicolons: false
+ };
+
+ FORMAT_DEFAULTS = getDefaultOptions().format;
+
+ exports.version = require('./package.json').version;
+ exports.generate = generate;
+ exports.attachComments = estraverse.attachComments;
+ exports.Precedence = updateDeeply({}, Precedence);
+ exports.browser = false;
+ exports.FORMAT_MINIFY = FORMAT_MINIFY;
+ exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS;
+}());
+/* vim: set sw=4 ts=4 et tw=80 : */
+
+ })(function(path) {
+ if (!modules[path]) throw new Error("unexpected require: " + path);
+ return modules[path];
+ }, window.escodegen = {
+ browser: true,
+ });
+})();
+"use strict";
+(function(exports) {
+ exports.version = "0.10.17";
+})(typeof exports !== 'undefined' ? exports : (Streamline.version = Streamline.version || {}));
+"use strict";
+(function() {
+var sourceMap;
+if (typeof exports !== 'undefined') {
+ var req = require; // fool streamline-require so that we don't load source-map client-side
+ try { sourceMap = req('source-map'); } catch (ex) {}
+}
+if (!sourceMap) {
+ // Mock it for client-side
+ sourceMap = {
+ SourceNode: function(lineno, column, source, content) {
+ this.children = content ? [content] : [];
+ }
+ };
+ sourceMap.SourceNode.prototype.add = function(elt) {
+ if (Array.isArray(elt)) this.children = this.children.concat(elt);
+ else this.children.push(elt);
+ return this;
+ };
+ sourceMap.SourceNode.prototype.prepend = function(elt) {
+ if (Array.isArray(elt)) this.children = elt.concat(this.children.concat);
+ else this.children.unshift(elt);
+ return this;
+ };
+ sourceMap.SourceNode.prototype.toString = function() {
+ var str = "";
+ this.walk(function (chunk) {
+ str += chunk;
+ });
+ return str;
+ };
+ sourceMap.SourceNode.prototype.walk = function(f) {
+ this.children.forEach(function(n) {
+ if (n instanceof sourceMap.SourceNode) n.walk(f);
+ else f(n);
+ });
+ return this;
+ };
+}
+(function(module) {
+function SourceNode() {
+ sourceMap.SourceNode.apply(this, arguments);
+}
+
+SourceNode.prototype = Object.create(sourceMap.SourceNode.prototype, {
+ constructor: {
+ value: SourceNode,
+ enumerable: false,
+ writable: true,
+ configurable: true
+ },
+ length: {
+ get: function() {
+ var len = 0;
+ this.walk(function(str) { len += str.length; });
+ return len;
+ }
+ }
+});
+SourceNode.prototype.stripPrefix = function(offset) {
+ var _len;
+ while (this.children.length > 0 && offset > 0 && (_len = this.children[0].length) <= offset) {
+ this.children.shift();
+ offset -= _len;
+ }
+ if (this.children.length == 0 || offset == 0) return this;
+ if (typeof this.children[0] == 'string') {
+ this.children[0] = this.children[0].substring(offset);
+ } else {
+ this.children[0].stripPrefix(offset);
+ }
+ return this;
+};
+SourceNode.prototype.stripSuffix = function(offset) {
+ var _len, chlen;
+ while ((chlen = this.children.length) > 0 && offset > 0 && (_len = this.children[chlen - 1].length) <= offset) {
+ this.children.pop();
+ offset -= _len;
+ }
+ if (chlen == 0 || offset == 0) return this;
+ if (typeof this.children[chlen-1] == 'string') {
+ this.children[chlen-1] = this.children[0].slice(0, -offset);
+ } else {
+ this.children[chlen-1].stripSuffix(offset);
+ }
+ return this;
+};
+SourceNode.prototype.map = function(f) {
+ this.children = this.children.map(function(chunk) {
+ if (chunk instanceof sourceMap.SourceNode) {
+ return chunk.map(f);
+ } else {
+ return f(chunk);
+ }
+ });
+ return this;
+};
+SourceNode.prototype.lastChar = function() {
+ for (var i = this.children.length; i--; ) {
+ var ret;
+ if (typeof this.children[i] == 'string') {
+ ret = this.children[i].slice(-1);
+ } else {
+ ret = this.children[i].lastChar();
+ }
+ if (ret) return ret;
+ }
+ return '';
+};
+module.exports = Object.create(sourceMap, { SourceNode: { value: SourceNode } });
+
+})(typeof exports !== 'undefined' ? module : (Streamline.sourceMap = Streamline.sourceMap || {}));
+})();// Copyright 2011 Marcel Laverdet
+"use strict";
+if (typeof exports !== 'undefined') {
+ module.exports = Walker;
+} else {
+ Streamline.walker = Walker;
+}
+
+/**
+ * It seems that Narcissus lacks a reasonable node walker. This implements a simple walker which
+ * lets you walk a tree linearly, in terms of source code, and only subscribe to the parts that
+ * you're interested in.
+ */
+function Walker(visitors) {
+ return function walk(node) {
+ var type = node.type;
+ if (type === undefined) {
+ throw new Error('Trying to walk unknown node!');
+ }
+ switch (type) {
+ case 'AssignmentExpression':
+ if (visitors[type]) {
+ visitors[type].call(node, node.left, node.right);
+ } else {
+ walk(node.left);
+ walk(node.right);
+ }
+ break;
+
+ case 'ArrayExpression':
+ if (visitors[type]) {
+ visitors[type].call(node, node.elements);
+ } else {
+ node.elements.map(walk);
+ }
+ break;
+
+ case 'ArrowFunctionExpression':
+ throw new Error("NIY");
+
+ case 'BinaryExpression':
+ case 'LogicalExpression':
+ if (visitors[type]) {
+ visitors[type].call(node, node.operator, node.left, node.right);
+ } else {
+ walk(node.left);
+ walk(node.right);
+ }
+ break;
+
+ case 'BlockStatement':
+ case 'Program':
+ if (visitors[type]) {
+ visitors[type].call(node, node.body);
+ } else {
+ node.body.map(walk);
+ }
+ break;
+
+ case 'BreakStatement':
+ case 'ContinueStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.label && node.label.name);
+ }
+ break;
+
+ case 'CallExpression':
+ case 'NewExpression':
+ if (visitors[type]) {
+ visitors[type].call(node, node.callee, node.arguments);
+ } else {
+ walk(node.callee);
+ node.arguments.map(walk);
+ }
+ break;
+
+ case 'CatchClause':
+ if (visitors[type]) {
+ visitors[type].call(node, node.body);
+ } else {
+ walk(node.body);
+ }
+ break;
+
+ case 'ConditionalExpression':
+ case 'IfStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.test, node.consequent, node.alternate);
+ } else {
+ walk(node.test);
+ walk(node.consequent);
+ node.alternate && walk(node.alternate);
+ }
+ break;
+
+ case 'DebuggerStatement':
+ case 'EmptyStatement':
+ case 'ThisExpression':
+ if (visitors[type]) {
+ visitors[type].call(node);
+ }
+ break;
+
+ case 'DoWhileStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.test, node.body);
+ } else {
+ walk(node.body);
+ walk(node.test);
+ }
+ break;
+
+ case 'ExpressionStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.expression);
+ } else {
+ node.expression && walk(node.expression);
+ }
+ break;
+
+ case 'ForStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.init, node.test, node.update, node.body);
+ } else {
+ node.init && walk(node.init);
+ node.test && walk(node.test);
+ node.update && walk(node.update);
+ walk(node.body);
+ }
+ break;
+
+ case 'ForInStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.left, node.right, node.body);
+ } else {
+ walk(node.left);
+ walk(node.right);
+ walk(node.body);
+ }
+ break;
+
+ case 'FunctionDeclaration':
+ case 'FunctionExpression':
+ if (visitors[type] || visitors['Function']) {
+ (visitors[type] || visitors['Function']).call(node, node.id && node.id.name, node.params, node.body.body);
+ } else {
+ node.body.body.map(walk);
+ }
+ break;
+
+ case 'Identifier':
+ if (visitors[type]) {
+ visitors[type].call(node, node.name);
+ }
+ break;
+
+ case 'LabeledStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.label.id, node.body);
+ } else {
+ walk(node.body);
+ }
+ break;
+
+ case 'Literal':
+ if (visitors[type]) {
+ visitors[type].call(node, node.value);
+ }
+ break;
+
+ case 'MemberExpression':
+ if (visitors[type]) {
+ visitors[type].call(node, node.object, node.property);
+ } else {
+ walk(node.object);
+ }
+ break;
+
+ case 'ObjectExpression':
+ if (visitors[type]) {
+ visitors[type].call(node, node.properties);
+ } else {
+ node.properties.map(walk);
+ }
+ break;
+
+ case 'Property':
+ if (visitors[type]) {
+ visitors[type].call(node, node.key, node.value);
+ } else {
+ walk(node.value);
+ }
+ break;
+
+ case 'ReturnStatement':
+ case 'ThrowStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.argument);
+ } else {
+ node.argument && walk(node.argument);
+ }
+ break;
+
+ case 'SequenceExpression':
+ if (visitors[type]) {
+ visitors[type].call(node, node.expressions);
+ } else {
+ node.expressions.map(walk);
+ }
+ break;
+
+ case 'SwitchCase':
+ if (visitors[type]) {
+ visitors[type].call(node, node.test, node.consequent);
+ } else {
+ node.test && walk(node.test);
+ node.consequent.map(walk);
+ Walker.insideCase = false;
+ }
+ break;
+
+ case 'SwitchStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.discriminant, node.cases);
+ } else {
+ walk(node.discriminant);
+ node.cases.map(walk);
+ }
+ break;
+
+ case 'TryStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.block, node.handlers, node.finalizer);
+ } else {
+ walk(node.block);
+ node.handlers.map(walk);
+ node.finalizer && walk(node.finalizer);
+ }
+ break;
+
+ case 'UnaryExpression':
+ case 'UpdateExpression':
+ if (visitors[type]) {
+ visitors[type].call(node, node.operator, node.argument);
+ } else {
+ walk(node.argument);
+ }
+ break;
+
+ case 'VariableDeclaration':
+ if (visitors[type]) {
+ visitors[type].call(node, node.declarations);
+ } else {
+ node.declarations.map(walk);
+ }
+ break;
+
+ case 'VariableDeclarator':
+ if (visitors[type]) {
+ visitors[type].call(node, node.id.name, node.init);
+ } else {
+ node.init && walk(node.init);
+ }
+ break;
+
+ case 'WhileStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.test, node.body);
+ } else {
+ walk(node.test);
+ walk(node.body);
+ }
+ break;
+
+ case 'WithStatement':
+ if (visitors[type]) {
+ visitors[type].call(node, node.object, node.body);
+ } else {
+ walk(node.object);
+ walk(node.body);
+ }
+ break;
+
+
+ default:
+ throw new Error("unhandled node type: " + node.type);
+ }
+ };
+}
+// Copyright 2011 Marcel Laverdet
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+"use strict";
+if (typeof exports !== 'undefined') {
+ var esprima = require('esprima');
+ var sourceMap = require('../util/source-map');
+}
+(function(exports) {
+ exports.transform = transform;
+ exports.version = require("../version").version + " (generators)";
+ // hack to fix #123
+ exports.transform.version = exports.version;
+
+ try {
+ eval("(function*(){})");
+ } catch (ex) {
+ console.log("warning: generators not supported or not enabled by your JS engine");
+ }
+
+ var Walker = require('../fibers/walker');
+
+ // TODO ensure `foo(_)` calls have a bounding fiber. streamline is smart enough to allow this:
+ // ~function() { foo(_) }();
+ // and disallow this:
+ // foo(function() { foo(_) });
+ /**
+ * Finds all variables which have been declared locally in this function.
+ */
+ function getLocals(fn, recurse) {
+ var names = Object.create(null);
+ function decl() {
+ var vars = this.declarations;
+ for (var ii = 0; ii < vars.length; ++ii) {
+ names[vars[ii].id.name] = vars[ii].id.name;
+ vars[ii].init && walk(vars[ii].init);
+ }
+ }
+ var walk = Walker({
+ Function: function(name, args, body) {
+ if (this.type !== 'FunctionExpression') {
+ names[this.id.name] = this.id.name;
+ }
+ // Don't walk further by default
+ if (recurse) {
+ for (var ii in getLocals(this, true)) {
+ names[ii] = ii;
+ }
+ }
+ },
+ VariableDeclaration: decl,
+ });
+ fn.body.body.map(walk);
+ for (var ii = 0; ii < fn.params; ++ii) {
+ names[fn.params[ii].name] = fn.params[ii].name;
+ }
+ if (fn.id && fn.type === 'FunctionExpression') {
+ names[fn.id.name] = fn.id.name;
+ }
+ return names;
+ }
+
+
+ /**
+ * Create a new object inheriting from `base` and extended by `vector`
+ */
+
+ function chain(base, vector) {
+ var obj = Object.create(base);
+ for (var ii in vector) {
+ obj[ii] = vector[ii];
+ }
+ return obj;
+ }
+
+ /**
+ * Transforms code to be streamliney. Line numbers are not maintained, but could be if I could
+ * figure out how to do it with uglifyjs.
+ */
+
+ function transform(source, options) {
+ source = source.replace(/\r\n/g, "\n");
+ options = options || {};
+ var callback = options.callback || '_';
+ var didRewrite = 0;
+ var position = 0;
+ var buffer = '';
+ var scope = Object.create(null);
+ var streamlined = Object.create(null);
+ var verboten = Object.create(null);
+ var async = false;
+ var asyncDepth = 0;
+ var allIdentifiers;
+
+ /**
+ * Walks a parse tree and finds all functions which have been declared as streamline functions.
+ * Also returns variables which are always streamlined functions. Note that this does not enter
+ * new function scopes.
+ */
+
+ function getStreamlinedDeclarations(fn) {
+ var declared = Object.create(null);
+ var exprs = Object.create(null);
+ var not = Object.create(null);
+ var walk = Walker({
+ Function: function(name, args, body) {
+ if (this.type !== 'FunctionExpression') {
+ var idx = getCallback(args);
+ (idx === -1 ? not : declared)[name] = getCallbackDefault(args, body) || idx;
+ }
+ // Don't walk further
+ },
+ VariableDeclarator: function(name, initializer) {
+ if (!initializer) {
+ return;
+ }
+ if (initializer.type === 'FunctionExpression') {
+ (getCallback(initializer.params) === -1 ? not : exprs)[name] = true;
+ } else {
+ not[name] = true;
+ }
+ walk(initializer);
+ },
+ AssignmentExpression: function(left, right) {
+ var name = left.type === 'Identifier' && left.name;
+ if (name) {
+ if (right.type === 'FunctionExpression') {
+ (getCallback(right.params) === -1 ? not : exprs)[name] = true;
+ } else {
+ not[name] = true;
+ }
+ }
+ walk(right);
+ },
+ });
+ fn.body.body.map(walk);
+ for (var ii in declared) {
+ exprs[ii] = true;
+ }
+ for (var ii in not) {
+ delete exprs[ii];
+ }
+ return {
+ declared: declared,
+ strict: exprs,
+ };
+ }
+
+ /**
+ * Finds the index of the callback param in an argument list, -1 if not found.
+ */
+
+ function getCallback(args, lineno) {
+ var idx = -1;
+ for (var ii = 0; ii < args.length; ++ii) {
+ if (args[ii] === callback || (args[ii].type === 'Identifier' && args[ii].name === callback) || //
+ (args[ii].type === 'UnaryExpression' && args[ii].operator === '~' && args[ii].argument.type === 'Identifier' && args[ii].argument.name === callback) ||
+ (args[ii].type === 'ArrayExpression' && args[ii].elements.length === 1 && args[ii].elements[0].type === 'Identifier' && args[ii].elements[0].name === callback)) {
+ if (idx === -1) {
+ idx = ii;
+ } else {
+ lineno = lineno || args[ii].loc.start.line;
+ throw error(lineno, 'Callback argument used more than once in function call ');
+ }
+ }
+ }
+ return idx;
+ }
+
+ /**
+ * Adds to `buffer` everything that hasn't been rendered so far.
+ */
+
+ function catchup(end) {
+ if (end < position || end === undefined) {
+ throw new Error('Invalid catchup, ' + position + ' to ' + end);
+ }
+ buffer += source.substring(position, end);
+ position = end;
+ }
+
+ function skipTo(pos) {
+ buffer += source.substring(position, pos).replace(/\S/g, '');
+ position = pos;
+ }
+
+ function startsWith(str, start, pat) {
+ return str.substring(start, start + pat.length) === pat;
+ }
+
+ function endsWith(str, end, pat) {
+ return str.substring(end - pat.length, end) === pat;
+ }
+
+ function getCallbackDefault(params, body) {
+ var paramI = -1;
+ for (var i = 0; i < body.length; i++) {
+ var child = body[i];
+ if (i === 0 && child.type === 'VariableDeclaration') { continue; }
+ if (child.type !== 'IfStatement') return null;
+ if (child.test.type !== 'BinaryExpression' || child.test.operator !== '==') return null;
+ var ident = child.test.left;
+ if (ident.type !== 'Identifier') return null;
+ if (child.test.right.type !== 'Literal' || child.test.right.value !== null) return false;
+ if (!child.consequent.body || child.consequent.body.length !== 1) return false;
+ var assign = child.consequent.body[0];
+ if (assign.type !== 'ExpressionStatement') return false;
+ assign = assign.expression;
+ if (assign.type !== 'AssignmentExpression') return false;
+ if (assign.left.type !== 'Identifier') return false;
+ if (assign.left.name !== ident.name) return false;
+ // we got a candidate - let us find the param
+ while (++paramI < params.length) {
+ if (ident.name === params[paramI].name) break;
+ }
+ if (paramI === params.length) return null;
+ if (ident.name === callback) {
+ body.splice(i, 1); // remove it from body
+ var def = assign.right;
+ return '{callbackIndex:' + paramI + ",callbackDefault:function(){ return " + //
+ source.substring(def.range[0], def.range[1]) + ';}}'
+ }
+ }
+ // we did not find it
+ return null;
+ }
+
+ var walk = Walker({
+ Function: function(name, args, body) {
+ // Open this function
+ if (name === callback) {
+ throw new Error('Invalid usage of callback on line ' + this.loc.start.line);
+ }
+ catchup(this.range[0]);
+ var idx = getCallback(args, this.loc.start.line), opts;
+ if (idx !== -1 && this.type === 'FunctionExpression') {
+ buffer += 'galaxy.unstar(';
+ opts = getCallbackDefault(args, body) || idx;
+ ++didRewrite;
+ }
+ if (idx !== -1 || this.forceAsync) {
+ catchup(source.indexOf('function', position));
+ buffer += "function*";
+ position += 8;
+ }
+ catchup(this.body.range[0] + 1);
+ // keep "use strict"; and similar directives at beginning of block
+ while (body[0] && body[0].type === 'ExpressionStatement' && body[0].expression.type === 'Literal' && typeof body[0].expression.value === 'string') {
+ catchup(body[0].range[1]);
+ body.splice(0, 1);
+ }
+
+ // Analyze the scope of this function for locals and streamlined functions
+ // We need locals to avoid renaming collisions with streamlined functions, and the streamlined
+ // functions let us optimize `invoke`.
+ var locals = getLocals(this);
+ var localStreamlined = getStreamlinedDeclarations(this);
+ var oldScope = scope;
+ var oldStreamlined = streamlined;
+ var oldVerboten = verboten;
+ var oldAsync = async;
+ async = idx !== -1 || this.forceAsync;
+ if (async) asyncDepth++;
+ scope = chain(scope, locals);
+ streamlined = chain(streamlined, localStreamlined.strict);
+ verboten = chain(verboten);
+ for (var ii in locals) {
+ if (!localStreamlined.strict[ii]) {
+ streamlined[ii] = false;
+ }
+ verboten[ii] = false;
+ }
+ if (idx !== -1 && this.type === 'FunctionExpression' && name) {
+ // Can't use a streamline'd function by name from within that function
+ verboten[name] = true;
+ }
+
+ // Hoist streamlined functions
+ var hoisted = [];
+ for (var ii in localStreamlined.declared) {
+ var fragment = '_',
+ len = 1;
+ while (scope[ii + fragment] || allIdentifiers[ii + fragment]) {
+ fragment = Array(++len + 1).join('_');
+ }
+ scope[ii] = ii + fragment;
+ hoisted.push(ii + fragment + ' = galaxy.unstar(' + ii + ', ' + localStreamlined.declared[ii] + ')');
+ ++didRewrite;
+ }
+ if (hoisted.length) {
+ buffer += 'var ' + hoisted.join(', ') + ';';
+ }
+
+ // Close up the function
+ body.map(walk);
+ catchup(this.range[1]);
+ if (idx !== -1 && this.type === 'FunctionExpression') {
+ buffer += ', ' + opts + ')';
+ }
+
+ // Reset scopes
+ scope = oldScope;
+ streamlined = oldStreamlined;
+ verboten = oldVerboten;
+ if (async) asyncDepth--;
+ async = oldAsync;
+ },
+ CallExpression: function(expr, args) {
+ if (expr.type === 'Identifier' && expr.name === '_' && args.length === 2) {
+ catchup(this.range[0]);
+ buffer += 'galaxy.streamlinify(';
+ skipTo(args[0].range[0]);
+ args.map(walk);
+ catchup(args[1].range[1]);
+ buffer += ')';
+ skipTo(this.range[1]);
+ ++didRewrite;
+ return;
+ }
+ if (expr.type === 'MemberExpression' && args.length === 2 && args[0].type === 'Identifier' && args[0].name === callback //
+ && args[1].type === 'Identifier' && args[1].name === callback) {
+ if (!async) throw error(this.loc.start.line, "Function contains async calls but does not have _ parameter");
+ catchup(this.range[0]);
+ skipTo(expr.object.range[0]);
+ buffer += '(yield galaxy.then.call(this,';
+ walk(expr.object);
+ catchup(expr.object.range[1]);
+ buffer += ', "' + expr.property.name + '", _))';
+ skipTo(this.range[1]);
+ ++didRewrite;
+ return;
+ }
+ var idx = getCallback(args);
+ if (idx !== -1 && !async) throw new Error("Function contains async calls but does not have _ parameter on line " + this.loc.start.line);
+ if (idx !== -1 && expr.type === 'Identifier' && streamlined[expr.name]) {
+ // Optimized streamline callback. We know this call is to a streamlined function so we can
+ // just inline it.
+ catchup(this.range[0]);
+ buffer += '(yield ';
+ if (scope[expr.name] === expr.name) {
+ // In this case `expr` was declared with a function expression instead of a function
+ // declaration, so the original function is no longer around.
+ catchup(expr.range[0]);
+ buffer += '(';
+ catchup(expr.range[1]);
+ buffer += '.__starred__' + idx + ' || 0)';
+ } else {
+ catchup(expr.range[1]);
+ }
+ buffer += '(';
+ for (var ii = 0; ii < args.length; ++ii) {
+ skipTo(args[ii].range[0]);
+ if (ii > 0) buffer += ', ';
+ if (ii !== idx) {
+ walk(args[ii]);
+ catchup(args[ii].range[1]);
+ } else {
+ buffer += '_';
+ skipTo(args[ii].range[1]);
+ }
+ }
+ skipTo(this.range[1]);
+ buffer += '))';
+ } else if (idx !== -1) {
+ // Rewrite streamlined calls
+ // issue #108: process between expr.range[0] and last arg end rather than this.range[0]/end
+ catchup(this.range[0]);
+ buffer += '(yield galaxy.invoke(';
+ skipTo(expr.range[0])
+ if (expr.type === 'MemberExpression') {
+ skipTo(expr.object.range[0]);
+ walk(expr.object);
+ catchup(expr.object.range[1]);
+ if (!expr.computed) {
+ // Method call: foo.bar(_)
+ buffer += ', ' + JSON.stringify(expr.property.name);
+ } else {
+ // Dynamic method call: foo[bar](_)
+ buffer += ', ';
+ skipTo(expr.property.range[0]);
+ walk(expr.property);
+ catchup(expr.property.range[1]);
+ }
+ skipTo(expr.range[1]);
+ } else {
+ // Function call
+ buffer += 'null, ';
+ walk(expr);
+ }
+ catchup(expr.range[1]);
+ // Render arguments
+ buffer += ', [';
+ skipTo(args[0].range[0]);
+ for (var ii = 0; ii < args.length; ++ii) {
+ skipTo(args[ii].range[0]);
+ if (ii > 0) buffer += ', ';
+ if (ii !== idx) {
+ walk(args[ii]);
+ catchup(args[ii].range[1]);
+ } else {
+ buffer += '_';
+ skipTo(args[ii].range[1]);
+ }
+ }
+ var options = idx;
+ if (args[idx].type === 'ArrayExpression') options = '{ callbackIndex: ' + idx + ', returnArray: true }';
+ buffer += '], ' + options + '))';
+ skipTo(this.range[1]);
+ ++didRewrite;
+ } else {
+ var paren = 0, forceAsync = false;
+ if (source[this.range[0]] === '(' && source[this.range[0] + 1] === '(' &&
+ source[this.range[1] - 1] === ')' && source[this.range[1] - 2] === ')') {
+ paren = 1;
+ }
+ if (async && asyncDepth > 1 && startsWith(source, this.range[0] + paren, '(function() {')) {
+ // handle coffeescript wrappers: set the forceAsync flag
+ // so that we don't get an error about _ being used inside non async function
+ if (endsWith(source, this.range[1] - paren, '})()')) {
+ expr.forceAsync = forceAsync = true;
+ }
+ if (endsWith(source, this.range[1] - paren, '}).call(this)') //
+ || endsWith(source, this.range[1] - paren, '}).call(_this)') //
+ || endsWith(source, this.range[1] - paren, '}).apply(this, arguments)')) {
+ expr.object.forceAsync = forceAsync = true;
+ }
+ }
+ if (forceAsync) {
+ catchup(this.range[0]);
+ buffer += '(yield ';
+ walk(expr);
+ args.map(walk);
+ catchup(this.range[1]);
+ buffer += ')';
+ } else {
+ walk(expr);
+ args.map(walk);
+ }
+ }
+ },
+ Identifier: function(name) {
+ if (name === callback) {
+ throw new Error('Invalid usage of callback on line ' + this.loc.start.line);
+ } else if (verboten[name]) {
+ throw new Error('Invalid use of indentifier `' + name + '` on line ' + this.loc.start.line);
+ }
+ if (scope[name]) {
+ catchup(this.range[0]);
+ buffer += scope[name];
+ skipTo(this.range[1]);
+ } else {
+ // catchup to end will deal with all sort of oddities, like object initializer keys that are
+ // parsed as identifiers but need to be quoted.
+ catchup(this.range[1]);
+ }
+ },
+ Property: function() {
+ // Dont't walk the property key, because that's an identifier and it will be clobbered, per
+ // the below code
+ walk(this.value);
+ },
+ MemberExpression: function() {
+ // See comment above for propery_init
+ walk(this.object);
+ if (this.computed) walk(this.property)
+ },
+ NewExpression: function(expr, args) {
+ var idx = getCallback(args);
+ if (idx !== -1) {
+ // assumes that this is a streamlined function!
+ catchup(this.range[0]);
+ skipTo(expr.range[0]); // skip new keyword
+ buffer += "(yield galaxy.new(galaxy.star("
+ walk(expr);
+ catchup(expr.range[1]);
+ buffer += "," + idx + "), " + idx + ")(";
+ // process arguments to avoid 'invalid usage of callback' error
+ for (var ii = 0; ii < args.length; ++ii) {
+ skipTo(args[ii].range[0]);
+ if (ii > 0) buffer += ', ';
+ if (ii !== idx) {
+ walk(args[ii]);
+ catchup(args[ii].range[1]);
+ } else {
+ buffer += '_';
+ skipTo(args[ii].range[1]);
+ }
+ }
+ buffer += "))";
+ skipTo(this.range[1]);
+ } else {
+ walk(expr);
+ args.map(walk);
+ }
+ },
+ ReturnStatement: function(argument) {
+ argument && walk(argument);
+ fixASI(this);
+ },
+ ThrowStatement: function(argument) {
+ argument && walk(argument);
+ fixASI(this);
+ },
+ YieldStatement: function(argument) {
+ argument && walk(argument);
+ fixASI(this);
+ },
+ UnaryExpression: function(operator, argument) {
+ if (operator === '!' || operator === 'void') {
+ if (argument.type === 'Identifier' && argument.name === callback) {
+ catchup(this.range[0]);
+ buffer += operator === '!' ? 'false' : 'null';
+ skipTo(this.range[1]);
+ } else {
+ walk(argument);
+ }
+ } else {
+ walk(argument);
+ }
+ },
+ TryStatement: function(block, handlers, finalizer) {
+ walk(block);
+ handlers.map(walk);
+ finalizer && walk(finalizer);
+ },
+ ExpressionStatement: function(expression) {
+ expression && walk(expression);
+ fixASI(this);
+ },
+ BinaryExpression: function(operator, left, right) {
+ if (operator === '<<' || operator === '>>') {
+ walkShift.call(this, left, right);
+ } else {
+ walk(left);
+ walk(right);
+ }
+ },
+ VariableDeclaration: function(declarations) {
+ declarations && declarations.map(walk);
+ if (this.eligibleForASI) fixASI(this);
+ },
+ });
+
+ // take care of ASI, in case transformation parenthesized next statement
+ function fixASI(node) {
+ catchup(node.range[1]);
+ if (buffer[buffer.length - 1] !== ';') buffer += ';'
+ }
+
+ function walkShift(left, right) {
+ if (left.type === 'Identifier' && left.name === callback) {
+ catchup(left.range[0]);
+ skipTo(source.indexOf(this.operator, left.range[1]) + 2);
+
+ walk(right);
+ ++didRewrite;
+ } else {
+ walk(left);
+ walk(right);
+ }
+ }
+
+ // Walk parsed source, rendering along the way
+ var originalSource = source;
+ var optStr = "(function(){";
+ if (options.promise) {
+ var arg = typeof options.promise === "string" ? "'" + options.promise + "'" : "true";
+ optStr += "galaxy.globals.setPromise(" + arg + ");";
+ }
+ optStr += "})();";
+ source = 'var galaxy = require("' + (options.internal ? '..' : 'streamline/lib') + '/generators/runtime");' + optStr + '(function(_) { ' + //
+ source + //
+ '\n}.call(this, function(err) {\n' + //
+ ' if (err) throw err;\n' + //
+ '}));\n';
+ var parsed = esprima.parse(source, {
+ loc: true,
+ range: true,
+ });
+ allIdentifiers = getLocals(parsed.body[2].expression.callee.object, true);
+ walk(parsed);
+ buffer += source.substring(position);
+
+ if (didRewrite > 0) {
+ return buffer;
+ } else {
+ return originalSource;
+ }
+ }
+})(typeof exports !== 'undefined' ? exports : (window.Streamline = window.Streamline || {}));
+/**
+ * Copyright (c) 2011 Bruno Jouhier
+ * MIT License
+ */
+(function(exports) {
+ var globals = require("../globals");
+
+ exports.future = function(fn, args, i) {
+ var err, result, done, q = [], self = this;
+ args = Array.prototype.slice.call(args);
+ args[i] = function(e, r) {
+ err = e, result = r, done = true;
+ q && q.forEach(function(f) {
+ f.call(self, e, r);
+ });
+ q = null;
+ };
+ args[i].__futurecb = true;
+ fn.apply(this, args);
+ var ret = function F(cb) {
+ if (typeof cb !== 'function') {
+ var globals = require('../globals');
+ if (cb == null && globals.Promise) return exports.promise.call(this, F, [], 0);
+ if (cb !== false && !globals.oldStyleFutures) throw new Error("callback missing (argument #0). See https://github.com/Sage/streamlinejs/blob/master/FAQ.md#no-callback-given-error");
+ return F;
+ }
+ if (done) cb.call(self, err, result);
+ else q.push(cb);
+ };
+ ret.__future = true;
+ return ret;
+ };
+
+ exports.streamlinify = function(fn, idx) {
+ return function() {
+ if (!arguments[idx]) return exports.future.call(this, fn, arguments, idx);
+ else return fn.apply(this, arguments);
+ };
+ };
+
+ exports.promise = function(fn, args, i) {
+ if (args[i] === false) return exports.future.call(this, fn, args, i);
+ if (args[i] != null) throw new Error("invalid callback: " + typeof(args[i]));
+ if (globals.oldStyleFutures) return exports.future.call(this, fn, args, i);
+ if (!globals.Promise) throw new Error("callback missing (argument #" + i + "). See https://github.com/Sage/streamlinejs/blob/master/FAQ.md#no-callback-given-error");
+
+ var self = this;
+ args = Array.prototype.slice.call(args);
+ return new globals.Promise(function(resolve, reject) {
+ args[i] = function(e, r) {
+ if (e) reject(e);
+ else resolve(r);
+ };
+ fn.apply(self, args);
+ });
+ };
+
+ exports.then = function(promise, method, cb) {
+ promise[method](function(r) {
+ cb && cb(null, r);
+ cb = null;
+ }, function(e) {
+ cb && cb(e);
+ cb = null;
+ });
+ };
+})(typeof exports !== 'undefined' ? exports : (Streamline.future = Streamline.future || {}));
+
+if (typeof exports !== 'undefined') {
+ exports = module.exports = Object.create(require('galaxy'));
+} else {
+ exports = (Streamline.runtime = Streamline.runtime || Object.create(require('galaxy')));
+}
+var globals = exports.globals = require('../globals');
+exports.globals.runtime = 'generators';
+require("../generators/builtins");
+var fut = require("../util/future");
+exports.streamlinify = fut.streamlinify;
+
+var unstar = exports.unstar;
+
+exports.unstar = function(fn, options, entering) {
+ if (typeof options === "number") options = {
+ callbackIndex: options,
+ };
+ else options = options || {};
+ options.promise = options.callbackDefault ? function(fn, args, i) {
+ return fut.future.call(this, fn, args, i)(options.callbackDefault());
+ } : fut.promise;
+ return unstar(fn, options, entering);
+}
+
+exports.then = exports.star(fut.then, 2);
+/*** Generated by streamline 0.10.17 (generators) - DO NOT EDIT ***/var galaxy = require("../generators/runtime");(function(){})();(galaxy.unstar(function*(_) { /**
+ * Copyright (c) 2012 Bruno Jouhier
+ * MIT License
+ */
+
+///
+/// # Streamline built-ins
+///
+(function(exports) {
+ "use strict";
+ var VERSION = 3;
+
+
+
+ var future = function(fn, args, i) {
+ var err, result, done, q = [],
+ self = this;
+ args = Array.prototype.slice.call(args);
+ args[i] = function(e, r) {
+ err = e, result = r, done = true;
+ q && q.forEach(function(f) {
+ f.call(self, e, r);
+ });
+ q = null;
+ };
+ fn.apply(this, args);
+ return function F(cb) {
+ if (!cb) return F;
+ if (done) cb.call(self, err, result);
+ else q.push(cb);
+ };
+ };
+
+ // Do not use this one directly, require it through the flows module.
+ exports.funnel = function(max) {
+ max = max == null ? -1 : max;
+ if (max === 0) max = funnel.defaultSize;
+ if (typeof max !== "number") throw new Error("bad max number: " + max);
+ var queue = [],
+ active = 0,
+ closed = false;
+
+ var funCb = function(callback, fn) {
+ if (callback == null) return future(funCb, arguments, 0);
+ //console.log("FUNNEL: active=" + active + ", queued=" + queue.length);
+ if (max < 0 || max == Infinity) return fn( callback);
+
+ queue.push({
+ fn: fn,
+ cb: callback
+ });
+
+ function _doOne() {
+ var current = queue.splice(0, 1)[0];
+ if (!current.cb) return current.fn();
+ active++;
+ current.fn( function(err, result) {
+ active--;
+ if (!closed) {
+ current.cb(err, result);
+ while (active < max && queue.length > 0) _doOne();
+ }
+ });
+ }
+
+ while (active < max && queue.length > 0) _doOne();
+ };
+ var fun = galaxy.streamlinify(funCb, 0);
+
+ fun.close = function() {
+ queue = [], closed = true;
+ };
+ return fun;
+ };
+ var funnel = exports.funnel;
+ funnel.defaultSize = 4;
+
+ function _parallel(options) {
+ if (typeof options === "number") return options;
+ if (typeof options.parallel === "number") return options.parallel;
+ return options.parallel ? -1 : 1;
+ }
+
+ if (Array.prototype.forEach_ && Array.prototype.forEach_.version_ >= VERSION) return;
+
+ // bail out (silently) if JS does not support defineProperty (IE 8).
+ try {
+ Object.defineProperty({}, 'x', {});
+ } catch (e) {
+ return;
+ }
+
+ var has = Object.prototype.hasOwnProperty;
+
+ /// ## Array functions
+ ///
+ /// These functions are asynchronous variants of the EcmaScript 5 Array functions.
+ ///
+ /// Common Rules:
+ ///
+ /// These variants are postfixed by an underscore.
+ /// They take the `_` callback as first parameter.
+ /// They pass the `_` callback as first argument to their `fn` callback.
+ /// Most of them have an optional `options` second parameter which controls the level of
+ /// parallelism. This `options` parameter may be specified either as `{ parallel: par }`
+ /// where `par` is an integer, or directly as a `par` integer value.
+ /// The `par` values are interpreted as follows:
+ ///
+ /// * If absent or equal to 1, execution is sequential.
+ /// * If > 1, at most `par` operations are parallelized.
+ /// * if 0, a default number of operations are parallelized.
+ /// This default is defined by `flows.funnel.defaultSize` (4 by default - see `flows` module).
+ /// * If < 0 or Infinity, operations are fully parallelized (no limit).
+ ///
+ /// Functions:
+ ///
+ /// * `array.forEach_(_[, options], fn[, thisObj])`
+ /// `fn` is called as `fn(_, elt, i)`.
+ delete Array.prototype.forEach_;
+ Object.defineProperty(Array.prototype, 'forEach_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: galaxy.unstar(function*(_, options, fn, thisObj) {
+ if (typeof options === "function") thisObj = fn, fn = options, options = 1;
+ var par = _parallel(options);
+ thisObj = thisObj !== undefined ? thisObj : this;
+ var len = this.length;
+ if (par === 1 || len <= 1) {
+ for (var i = 0; i < len; i++) {
+ if (has.call(this, i)) (yield galaxy.invoke(fn, "call", [thisObj , _ , this[i] , i], 1));
+ }
+ } else {
+ (yield galaxy.invoke(this, "map_", [_ , par , fn , thisObj], 0));
+ }
+ return this;
+ }, 0)
+ });
+ Array.prototype.forEach_.version_ = VERSION;
+ /// * `result = array.map_(_[, options], fn[, thisObj])`
+ /// `fn` is called as `fn(_, elt, i)`.
+ delete Array.prototype.map_;
+ Object.defineProperty(Array.prototype, 'map_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: galaxy.unstar(function*(_, options, fn, thisObj) {
+ if (typeof options === "function") thisObj = fn, fn = options, options = 1;
+ var par = _parallel(options);
+ thisObj = thisObj !== undefined ? thisObj : this;
+ var len = this.length;
+ var result;
+ if (par === 1 || len <= 1) {
+ result = new Array(len);
+ for (var i = 0; i < len; i++) {
+ if (has.call(this, i)) result[i] = (yield galaxy.invoke(fn, "call", [thisObj , _ , this[i] , i], 1));
+ }
+ } else {
+ var fun = funnel(par);
+ result = this.map(function(elt, i) {
+ return fun(false, galaxy.unstar(function*(_) {
+ return (yield galaxy.invoke(fn, "call", [thisObj , _ , elt , i], 1));
+ }, 0));
+ });
+ for (var i = 0; i < len; i++) {
+ if (has.call(this, i)) result[i] = (yield galaxy.invoke(result, i, [_], 0));
+ }
+ }
+ return result;
+ }, 0)
+ });
+ /// * `result = array.filter_(_[, options], fn[, thisObj])`
+ /// `fn` is called as `fn(_, elt)`.
+ delete Array.prototype.filter_;
+ Object.defineProperty(Array.prototype, 'filter_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: galaxy.unstar(function*(_, options, fn, thisObj) {
+ if (typeof options === "function") thisObj = fn, fn = options, options = 1;
+ var par = _parallel(options);
+ thisObj = thisObj !== undefined ? thisObj : this;
+ var result = [];
+ var len = this.length;
+ if (par === 1 || len <= 1) {
+ for (var i = 0; i < len; i++) {
+ if (has.call(this, i)) {
+ var elt = this[i];
+ if ((yield galaxy.invoke(fn, "call", [thisObj , _ , elt], 1))) result.push(elt);
+ }
+ }
+ } else {
+ (yield galaxy.invoke(this, "map_", [_ , par , galaxy.unstar(function*(_, elt) {
+ if ((yield galaxy.invoke(fn, "call", [thisObj , _ , elt], 1))) result.push(elt);
+ }, 0) , thisObj], 0));
+ }
+ return result;
+ }, 0)
+ });
+ /// * `bool = array.every_(_[, options], fn[, thisObj])`
+ /// `fn` is called as `fn(_, elt)`.
+ delete Array.prototype.every_;
+ Object.defineProperty(Array.prototype, 'every_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: galaxy.unstar(function*(_, options, fn, thisObj) {
+ if (typeof options === "function") thisObj = fn, fn = options, options = 1;
+ var par = _parallel(options);
+ thisObj = thisObj !== undefined ? thisObj : this;
+ var len = this.length;
+ if (par === 1 || len <= 1) {
+ for (var i = 0; i < len; i++) {
+
+ if (has.call(this, i) && !(yield galaxy.invoke(fn, "call", [thisObj , _ , this[i]], 1))) return false;
+ }
+ } else {
+ var fun = funnel(par);
+ var futures = this.map(function(elt) {
+ return fun(false, galaxy.unstar(function*(_) {
+ return (yield galaxy.invoke(fn, "call", [thisObj , _ , elt], 1));
+ }, 0));
+ });
+ for (var i = 0; i < len; i++) {
+ if (has.call(this, i) && !(yield galaxy.invoke(futures, i, [_], 0))) {
+ fun.close();
+ return false;
+ }
+ }
+ }
+ return true;
+ }, 0)
+ });
+ /// * `bool = array.some_(_[, options], fn[, thisObj])`
+ /// `fn` is called as `fn(_, elt)`.
+ delete Array.prototype.some_;
+ Object.defineProperty(Array.prototype, 'some_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: galaxy.unstar(function*(_, options, fn, thisObj) {
+ if (typeof options === "function") thisObj = fn, fn = options, options = 1;
+ var par = _parallel(options);
+ thisObj = thisObj !== undefined ? thisObj : this;
+ var len = this.length;
+ if (par === 1 || len <= 1) {
+ for (var i = 0; i < len; i++) {
+ if (has.call(this, i) && (yield galaxy.invoke(fn, "call", [thisObj , _ , this[i]], 1))) return true;
+ }
+ } else {
+ var fun = funnel(par);
+ var futures = this.map(function(elt) {
+ return fun(false, galaxy.unstar(function*(_) {
+ return (yield galaxy.invoke(fn, "call", [thisObj , _ , elt], 1));
+ }, 0));
+ });
+ for (var i = 0; i < len; i++) {
+ if (has.call(this, i) && (yield galaxy.invoke(futures, i, [_], 0))) {
+ fun.close();
+ return true;
+ }
+ }
+ }
+ return false;
+ }, 0)
+ });
+ /// * `result = array.reduce_(_, fn, val[, thisObj])`
+ /// `fn` is called as `val = fn(_, val, elt, i, array)`.
+ delete Array.prototype.reduce_;
+ Object.defineProperty(Array.prototype, 'reduce_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: galaxy.unstar(function*(_, fn, v, thisObj) {
+ thisObj = thisObj !== undefined ? thisObj : this;
+ var len = this.length;
+ for (var i = 0; i < len; i++) {
+ if (has.call(this, i)) v = (yield galaxy.invoke(fn, "call", [thisObj , _ , v , this[i] , i , this], 1));
+ }
+ return v;
+ }, 0)
+ });
+ /// * `result = array.reduceRight_(_, fn, val[, thisObj])`
+ /// `fn` is called as `val = fn(_, val, elt, i, array)`.
+ delete Array.prototype.reduceRight_;
+ Object.defineProperty(Array.prototype, 'reduceRight_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: galaxy.unstar(function*(_, fn, v, thisObj) {
+ thisObj = thisObj !== undefined ? thisObj : this;
+ var len = this.length;
+ for (var i = len - 1; i >= 0; i--) {
+ if (has.call(this, i)) v = (yield galaxy.invoke(fn, "call", [thisObj , _ , v , this[i] , i , this], 1));
+ }
+ return v;
+ }, 0)
+ });
+
+ /// * `array = array.sort_(_, compare [, beg [, end]])`
+ /// `compare` is called as `cmp = compare(_, elt1, elt2)`.
+ /// Note: this function _changes_ the original array (and returns it).
+ delete Array.prototype.sort_;
+ Object.defineProperty(Array.prototype, 'sort_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: galaxy.unstar(function*(_, compare, beg, end) {var _qsort_ = galaxy.unstar(_qsort, 0);
+ var array = this;
+ beg = beg || 0;
+ end = end == null ? array.length - 1 : end;
+
+ function* _qsort(_, beg, end) {
+ if (beg >= end) return;
+
+ if (end == beg + 1) {
+ if ((yield galaxy.invoke(null, compare, [_ , array[beg] , array[end]], 0)) > 0) {
+ var tmp = array[beg];
+ array[beg] = array[end];
+ array[end] = tmp;
+ }
+ return;
+ }
+
+ var mid = Math.floor((beg + end) / 2);
+ var o = array[mid];
+ var nbeg = beg;
+ var nend = end;
+
+ while (nbeg <= nend) {
+ while (nbeg < end && (yield galaxy.invoke(null, compare, [_ , array[nbeg] , o], 0)) < 0) nbeg++;
+ while (beg < nend && (yield galaxy.invoke(null, compare, [_ , o , array[nend]], 0)) < 0) nend--;
+
+ if (nbeg <= nend) {
+ var tmp = array[nbeg];
+ array[nbeg] = array[nend];
+ array[nend] = tmp;
+ nbeg++;
+ nend--;
+ }
+ }
+
+ if (nbeg < end) (yield _qsort(_ , nbeg , end));
+ if (beg < nend) (yield _qsort(_ , beg , nend));
+ }
+ (yield _qsort(_ , beg , end));
+ return array;
+ }, 0)
+ });
+
+ ///
+ /// ## Function functions
+ ///
+ /// * `result = fn.apply_(_, thisObj, args[, index])`
+ /// Helper to use `Function.prototype.apply` inside streamlined functions.
+ /// Equivalent to `result = fn.apply(thisObj, argsWith_)` where `argsWith_` is
+ /// a modified `args` in which the callback has been inserted at `index`
+ /// (at the end of the argument list if `index` is omitted or negative).
+ delete Function.prototype.apply_;
+ Object.defineProperty(Function.prototype, 'apply_', {
+ configurable: true,
+ writable: true,
+ enumerable: false,
+ value: function(callback, thisObj, args, index) {
+ args = Array.prototype.slice.call(args, 0);
+ args.splice(index != null && index >= 0 ? index : args.length, 0, callback);
+ return this.apply(thisObj, args);
+ }
+ });
+})(typeof exports !== 'undefined' ? exports : (Streamline.builtins = Streamline.builtins || {}));
+}, 0).call(this, function(err) {
+ if (err) throw err;
+}));