feat($parse): support the integer division operator

Closes #233
dart-archive · Nov 21, 2013 · b29dff9 · b29dff9
1 parent 056a734
commit b29dff9
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/lib/core/parser/parser.dart b/lib/core/parser/parser.dart
@@ -115,6 +115,7 @@ Map<String, Operator> OPERATORS = {
   },
   '*': (s, l, a, b) => a.eval(s, l) * b.eval(s, l),
   '/': (s, l, a, b) => a.eval(s, l) / b.eval(s, l),
+  '~/': (s, l, a, b) => a.eval(s, l) ~/ b.eval(s, l),
   '%': (s, l, a, b) => a.eval(s, l) % b.eval(s, l),
   '^': (s, l, a, b) => a.eval(s, l) ^ b.eval(s, l),
   '=': NULL_OP,
@@ -290,7 +291,7 @@ class DynamicParser implements Parser {
   ParserAST _multiplicative() {
     var left = _unary();
     var token;
-    while ((token = _expect('*','/','%')) != null) {
+    while ((token = _expect('*','%','/','~/')) != null) {
       left = _binaryFn(left, token.opKey, _unary());
     }
     return left;

diff --git a/test/core/parser/parser_spec.dart b/test/core/parser/parser_spec.dart
@@ -72,6 +72,7 @@ main() {
 
       it('should parse multiplicative expressions', () {
         expect(eval("3*4/2%5")).toEqual(3*4/2%5);
+        expect(eval("3*4~/2%5")).toEqual(3*4~/2%5);
       });
 
 
@@ -539,6 +540,7 @@ main() {
         scope["taxRate"] =  8;
         scope["subTotal"] =  100;
         expect(eval("taxRate / 100 * subTotal")).toEqual(8);
+        expect(eval("taxRate ~/ 100 * subTotal")).toEqual(0);
         expect(eval("subTotal * taxRate / 100")).toEqual(8);
       });