diff options
Diffstat (limited to 'tools/node_modules/eslint/node_modules/acorn-jsx/index.js')
-rw-r--r-- | tools/node_modules/eslint/node_modules/acorn-jsx/index.js | 111 |
1 files changed, 75 insertions, 36 deletions
diff --git a/tools/node_modules/eslint/node_modules/acorn-jsx/index.js b/tools/node_modules/eslint/node_modules/acorn-jsx/index.js index 460e793399..6df802bee9 100644 --- a/tools/node_modules/eslint/node_modules/acorn-jsx/index.js +++ b/tools/node_modules/eslint/node_modules/acorn-jsx/index.js @@ -5,40 +5,53 @@ const XHTMLEntities = require('./xhtml'); const hexNumber = /^[\da-fA-F]+$/; const decimalNumber = /^\d+$/; -const acorn = require("acorn"); -const tt = acorn.tokTypes; -const TokContext = acorn.TokContext; -const tokContexts = acorn.tokContexts; -const TokenType = acorn.TokenType; -const isNewLine = acorn.isNewLine; -const isIdentifierStart = acorn.isIdentifierStart; -const isIdentifierChar = acorn.isIdentifierChar; - -const tc_oTag = new TokContext('<tag', false); -const tc_cTag = new TokContext('</tag', false); -const tc_expr = new TokContext('<tag>...</tag>', true, true); - -const tok = { - jsxName: new TokenType('jsxName'), - jsxText: new TokenType('jsxText', {beforeExpr: true}), - jsxTagStart: new TokenType('jsxTagStart'), - jsxTagEnd: new TokenType('jsxTagEnd') -} +// The map to `acorn-jsx` tokens from `acorn` namespace objects. +const acornJsxMap = new WeakMap(); + +// Get the original tokens for the given `acorn` namespace object. +function getJsxTokens(acorn) { + acorn = acorn.Parser.acorn || acorn; + let acornJsx = acornJsxMap.get(acorn); + if (!acornJsx) { + const tt = acorn.tokTypes; + const TokContext = acorn.TokContext; + const TokenType = acorn.TokenType; + const tc_oTag = new TokContext('<tag', false); + const tc_cTag = new TokContext('</tag', false); + const tc_expr = new TokContext('<tag>...</tag>', true, true); + const tokContexts = { + tc_oTag: tc_oTag, + tc_cTag: tc_cTag, + tc_expr: tc_expr + }; + const tokTypes = { + jsxName: new TokenType('jsxName'), + jsxText: new TokenType('jsxText', {beforeExpr: true}), + jsxTagStart: new TokenType('jsxTagStart'), + jsxTagEnd: new TokenType('jsxTagEnd') + }; + + tokTypes.jsxTagStart.updateContext = function() { + this.context.push(tc_expr); // treat as beginning of JSX expression + this.context.push(tc_oTag); // start opening tag context + this.exprAllowed = false; + }; + tokTypes.jsxTagEnd.updateContext = function(prevType) { + let out = this.context.pop(); + if (out === tc_oTag && prevType === tt.slash || out === tc_cTag) { + this.context.pop(); + this.exprAllowed = this.curContext() === tc_expr; + } else { + this.exprAllowed = true; + } + }; -tok.jsxTagStart.updateContext = function() { - this.context.push(tc_expr); // treat as beginning of JSX expression - this.context.push(tc_oTag); // start opening tag context - this.exprAllowed = false; -}; -tok.jsxTagEnd.updateContext = function(prevType) { - let out = this.context.pop(); - if (out === tc_oTag && prevType === tt.slash || out === tc_cTag) { - this.context.pop(); - this.exprAllowed = this.curContext() === tc_expr; - } else { - this.exprAllowed = true; + acornJsx = { tokContexts: tokContexts, tokTypes: tokTypes }; + acornJsxMap.set(acorn, acornJsx); } -}; + + return acornJsx; +} // Transforms JSX element name to string. @@ -64,12 +77,38 @@ module.exports = function(options) { allowNamespaces: options.allowNamespaces !== false, allowNamespacedObjects: !!options.allowNamespacedObjects }, Parser); - } + }; }; -module.exports.tokTypes = tok; + +// This is `tokTypes` of the peer dep. +// This can be different instances from the actual `tokTypes` this plugin uses. +Object.defineProperty(module.exports, "tokTypes", { + get: function get_tokTypes() { + return getJsxTokens(require("acorn")).tokTypes; + }, + configurable: true, + enumerable: true +}); function plugin(options, Parser) { + const acorn = Parser.acorn || require("acorn"); + const acornJsx = getJsxTokens(acorn); + const tt = acorn.tokTypes; + const tok = acornJsx.tokTypes; + const tokContexts = acorn.tokContexts; + const tc_oTag = acornJsx.tokContexts.tc_oTag; + const tc_cTag = acornJsx.tokContexts.tc_cTag; + const tc_expr = acornJsx.tokContexts.tc_expr; + const isNewLine = acorn.isNewLine; + const isIdentifierStart = acorn.isIdentifierStart; + const isIdentifierChar = acorn.isIdentifierChar; + return class extends Parser { + // Expose actual `tokTypes` and `tokContexts` to other plugins. + static get acornJsx() { + return acornJsx; + } + // Reads inline JSX contents token. jsx_readToken() { let out = '', chunkStart = this.pos; @@ -419,7 +458,7 @@ function plugin(options, Parser) { ++this.pos; return this.finishToken(tok.jsxTagStart); } - return super.readToken(code) + return super.readToken(code); } updateContext(prevType) { @@ -427,7 +466,7 @@ function plugin(options, Parser) { var curContext = this.curContext(); if (curContext == tc_oTag) this.context.push(tokContexts.b_expr); else if (curContext == tc_expr) this.context.push(tokContexts.b_tmpl); - else super.updateContext(prevType) + else super.updateContext(prevType); this.exprAllowed = true; } else if (this.type === tt.slash && prevType === tok.jsxTagStart) { this.context.length -= 2; // do not consider JSX expr -> JSX open tag -> ... anymore |