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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| const escope = require("eslint-scope") | ||
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| module.exports = { replacer, getAllTokens, scopeToJSON, analyze } | ||
|
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| /** | ||
| * Remove `parent` properties from the given AST. | ||
| * @param {string} key The key. | ||
| * @param {any} value The value of the key. | ||
| * @returns {any} The value of the key to output. | ||
| */ | ||
| function replacer(key, value) { | ||
| if (key === "parent") { | ||
| return undefined | ||
| } | ||
| if (key === "errors" && Array.isArray(value)) { | ||
| return value.map((e) => ({ | ||
| message: e.message, | ||
| index: e.index, | ||
| lineNumber: e.lineNumber, | ||
| column: e.column, | ||
| })) | ||
| } | ||
| return value | ||
| } | ||
|
|
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| /** | ||
| * Get all tokens of the given AST. | ||
| * @param {ASTNode} ast The root node of AST. | ||
| * @returns {Token[]} Tokens. | ||
| */ | ||
| function getAllTokens(ast) { | ||
| const tokenArrays = [ast.tokens, ast.comments] | ||
| if (ast.templateBody != null) { | ||
| tokenArrays.push(ast.templateBody.tokens, ast.templateBody.comments) | ||
| } | ||
| return Array.prototype.concat.apply([], tokenArrays) | ||
| } | ||
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| function scopeToJSON(scopeManager) { | ||
| return JSON.stringify(normalizeScope(scopeManager.globalScope), replacer, 4) | ||
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| function normalizeScope(scope) { | ||
| return { | ||
| type: scope.type, | ||
| variables: scope.variables.map(normalizeVar), | ||
| references: scope.references.map(normalizeReference), | ||
| childScopes: scope.childScopes.map(normalizeScope), | ||
| through: scope.through.map(normalizeReference), | ||
| } | ||
| } | ||
|
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| function normalizeVar(v) { | ||
| return { | ||
| name: v.name, | ||
| identifiers: v.identifiers.map(normalizeId), | ||
| defs: v.defs.map(normalizeDef), | ||
| references: v.references.map(normalizeReference), | ||
| } | ||
| } | ||
|
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| function normalizeReference(reference) { | ||
| return { | ||
| identifier: normalizeId(reference.identifier), | ||
| from: reference.from.type, | ||
| resolved: normalizeId( | ||
| reference.resolved && | ||
| reference.resolved.defs && | ||
| reference.resolved.defs[0] && | ||
| reference.resolved.defs[0].name, | ||
| ), | ||
| init: reference.init || null, | ||
| vueUsedInTemplate: reference.vueUsedInTemplate | ||
| ? reference.vueUsedInTemplate | ||
| : undefined, | ||
| } | ||
| } | ||
|
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| function normalizeDef(def) { | ||
| return { | ||
| type: def.type, | ||
| node: normalizeDefNode(def.node), | ||
| name: def.name.name, | ||
| } | ||
| } | ||
|
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| function normalizeId(identifier) { | ||
| return ( | ||
| identifier && { | ||
| type: identifier.type, | ||
| name: identifier.name, | ||
| loc: identifier.loc, | ||
| } | ||
| ) | ||
| } | ||
|
|
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| function normalizeDefNode(node) { | ||
| return { | ||
| type: node.type, | ||
| loc: node.loc, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Analyze scope | ||
| */ | ||
| function analyze(ast, parserOptions) { | ||
| const ecmaVersion = parserOptions.ecmaVersion || 2017 | ||
| const ecmaFeatures = parserOptions.ecmaFeatures || {} | ||
| const sourceType = parserOptions.sourceType || "script" | ||
| const result = escope.analyze(ast, { | ||
| ignoreEval: true, | ||
| nodejsScope: false, | ||
| impliedStrict: ecmaFeatures.impliedStrict, | ||
| ecmaVersion, | ||
| sourceType, | ||
| fallback: getFallbackKeys, | ||
| }) | ||
|
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| return result | ||
|
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| function getFallbackKeys(node) { | ||
| return Object.keys(node).filter(fallbackKeysFilter, node) | ||
| } | ||
|
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| function fallbackKeysFilter(key) { | ||
| const value = null | ||
| return ( | ||
| key !== "comments" && | ||
| key !== "leadingComments" && | ||
| key !== "loc" && | ||
| key !== "parent" && | ||
| key !== "range" && | ||
| key !== "tokens" && | ||
| key !== "trailingComments" && | ||
| typeof value === "object" && | ||
| (typeof value.type === "string" || Array.isArray(value)) | ||
| ) | ||
| } | ||
| } |