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attachComment
parser option to disable comment attachment (#13229)
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28 changes: 28 additions & 0 deletions
28
benchmark/babel-parser/many-leading-trailing-comments/attachComment-false.bench.mjs
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import Benchmark from "benchmark"; | ||
import baseline from "@babel-baseline/parser"; | ||
import current from "../../lib/index.js"; | ||
import { report } from "../util.mjs"; | ||
|
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const suite = new Benchmark.Suite(); | ||
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function createInput(length) { | ||
return "\n// c\na".repeat(length); | ||
} | ||
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function benchCases(name, implementation, options) { | ||
for (const length of [256, 512, 1024, 2048]) { | ||
const input = createInput(length); | ||
const { parse } = implementation; | ||
suite.add( | ||
`${name} ${length} leading comments + ${length - 1} trailing comments`, | ||
() => { | ||
parse(input, options); | ||
} | ||
); | ||
} | ||
} | ||
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benchCases("baseline", baseline, { attachComment: true }); | ||
benchCases("current + attachComment: false", current, { attachComment: false }); | ||
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suite.on("cycle", report).run(); |
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Original file line number | Diff line number | Diff line change |
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import path from "path"; | ||
import { runFixtureTestsWithoutExactASTMatch } from "./helpers/runFixtureTests"; | ||
import { parseExpression } from "../lib"; | ||
import { fileURLToPath } from "url"; | ||
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runFixtureTestsWithoutExactASTMatch( | ||
path.join(path.dirname(fileURLToPath(import.meta.url)), "expressions"), | ||
(input, options = {}) => { | ||
options.attachComment = false; | ||
return parseExpression(input, options); | ||
}, | ||
); |
18 changes: 18 additions & 0 deletions
18
...arser/test/fixtures/comments/attachComment-false/array-expression-trailing-comma/input.js
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const nonTrailing = [ | ||
"One", // One | ||
// Two | ||
"Two" // Three | ||
// Four | ||
] | ||
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const trailingAfterComma = [ | ||
"One", // One | ||
// Two | ||
"Two", // Three | ||
// Four | ||
] | ||
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const trailingAfterArray = [ | ||
"One", // One | ||
// Two | ||
] // Three |
187 changes: 187 additions & 0 deletions
187
...er/test/fixtures/comments/attachComment-false/array-expression-trailing-comma/output.json
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{ | ||
"type": "File", | ||
"start":0,"end":229,"loc":{"start":{"line":1,"column":0},"end":{"line":18,"column":10}}, | ||
"program": { | ||
"type": "Program", | ||
"start":0,"end":229,"loc":{"start":{"line":1,"column":0},"end":{"line":18,"column":10}}, | ||
"sourceType": "script", | ||
"interpreter": null, | ||
"body": [ | ||
{ | ||
"type": "VariableDeclaration", | ||
"start":0,"end":76,"loc":{"start":{"line":1,"column":0},"end":{"line":6,"column":1}}, | ||
"declarations": [ | ||
{ | ||
"type": "VariableDeclarator", | ||
"start":6,"end":76,"loc":{"start":{"line":1,"column":6},"end":{"line":6,"column":1}}, | ||
"id": { | ||
"type": "Identifier", | ||
"start":6,"end":17,"loc":{"start":{"line":1,"column":6},"end":{"line":1,"column":17},"identifierName":"nonTrailing"}, | ||
"name": "nonTrailing" | ||
}, | ||
"init": { | ||
"type": "ArrayExpression", | ||
"start":20,"end":76,"loc":{"start":{"line":1,"column":20},"end":{"line":6,"column":1}}, | ||
"elements": [ | ||
{ | ||
"type": "StringLiteral", | ||
"start":24,"end":29,"loc":{"start":{"line":2,"column":2},"end":{"line":2,"column":7}}, | ||
"extra": { | ||
"rawValue": "One", | ||
"raw": "\"One\"" | ||
}, | ||
"value": "One" | ||
}, | ||
{ | ||
"type": "StringLiteral", | ||
"start":50,"end":55,"loc":{"start":{"line":4,"column":2},"end":{"line":4,"column":7}}, | ||
"extra": { | ||
"rawValue": "Two", | ||
"raw": "\"Two\"" | ||
}, | ||
"value": "Two" | ||
} | ||
] | ||
} | ||
} | ||
], | ||
"kind": "const" | ||
}, | ||
{ | ||
"type": "VariableDeclaration", | ||
"start":78,"end":162,"loc":{"start":{"line":8,"column":0},"end":{"line":13,"column":1}}, | ||
"declarations": [ | ||
{ | ||
"type": "VariableDeclarator", | ||
"start":84,"end":162,"loc":{"start":{"line":8,"column":6},"end":{"line":13,"column":1}}, | ||
"id": { | ||
"type": "Identifier", | ||
"start":84,"end":102,"loc":{"start":{"line":8,"column":6},"end":{"line":8,"column":24},"identifierName":"trailingAfterComma"}, | ||
"name": "trailingAfterComma" | ||
}, | ||
"init": { | ||
"type": "ArrayExpression", | ||
"start":105,"end":162,"loc":{"start":{"line":8,"column":27},"end":{"line":13,"column":1}}, | ||
"extra": { | ||
"trailingComma": 140 | ||
}, | ||
"elements": [ | ||
{ | ||
"type": "StringLiteral", | ||
"start":109,"end":114,"loc":{"start":{"line":9,"column":2},"end":{"line":9,"column":7}}, | ||
"extra": { | ||
"rawValue": "One", | ||
"raw": "\"One\"" | ||
}, | ||
"value": "One" | ||
}, | ||
{ | ||
"type": "StringLiteral", | ||
"start":135,"end":140,"loc":{"start":{"line":11,"column":2},"end":{"line":11,"column":7}}, | ||
"extra": { | ||
"rawValue": "Two", | ||
"raw": "\"Two\"" | ||
}, | ||
"value": "Two" | ||
} | ||
] | ||
} | ||
} | ||
], | ||
"kind": "const" | ||
}, | ||
{ | ||
"type": "VariableDeclaration", | ||
"start":164,"end":220,"loc":{"start":{"line":15,"column":0},"end":{"line":18,"column":1}}, | ||
"declarations": [ | ||
{ | ||
"type": "VariableDeclarator", | ||
"start":170,"end":220,"loc":{"start":{"line":15,"column":6},"end":{"line":18,"column":1}}, | ||
"id": { | ||
"type": "Identifier", | ||
"start":170,"end":188,"loc":{"start":{"line":15,"column":6},"end":{"line":15,"column":24},"identifierName":"trailingAfterArray"}, | ||
"name": "trailingAfterArray" | ||
}, | ||
"init": { | ||
"type": "ArrayExpression", | ||
"start":191,"end":220,"loc":{"start":{"line":15,"column":27},"end":{"line":18,"column":1}}, | ||
"extra": { | ||
"trailingComma": 200 | ||
}, | ||
"elements": [ | ||
{ | ||
"type": "StringLiteral", | ||
"start":195,"end":200,"loc":{"start":{"line":16,"column":2},"end":{"line":16,"column":7}}, | ||
"extra": { | ||
"rawValue": "One", | ||
"raw": "\"One\"" | ||
}, | ||
"value": "One" | ||
} | ||
] | ||
} | ||
} | ||
], | ||
"kind": "const" | ||
} | ||
], | ||
"directives": [] | ||
}, | ||
"comments": [ | ||
{ | ||
"type": "CommentLine", | ||
"value": " One", | ||
"start":31,"end":37,"loc":{"start":{"line":2,"column":9},"end":{"line":2,"column":15}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " Two", | ||
"start":41,"end":47,"loc":{"start":{"line":3,"column":3},"end":{"line":3,"column":9}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " Three", | ||
"start":56,"end":64,"loc":{"start":{"line":4,"column":8},"end":{"line":4,"column":16}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " Four", | ||
"start":67,"end":74,"loc":{"start":{"line":5,"column":2},"end":{"line":5,"column":9}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " One", | ||
"start":116,"end":122,"loc":{"start":{"line":9,"column":9},"end":{"line":9,"column":15}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " Two", | ||
"start":126,"end":132,"loc":{"start":{"line":10,"column":3},"end":{"line":10,"column":9}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " Three", | ||
"start":142,"end":150,"loc":{"start":{"line":11,"column":9},"end":{"line":11,"column":17}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " Four", | ||
"start":153,"end":160,"loc":{"start":{"line":12,"column":2},"end":{"line":12,"column":9}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " One", | ||
"start":202,"end":208,"loc":{"start":{"line":16,"column":9},"end":{"line":16,"column":15}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " Two", | ||
"start":212,"end":218,"loc":{"start":{"line":17,"column":3},"end":{"line":17,"column":9}} | ||
}, | ||
{ | ||
"type": "CommentLine", | ||
"value": " Three", | ||
"start":221,"end":229,"loc":{"start":{"line":18,"column":2},"end":{"line":18,"column":10}} | ||
} | ||
] | ||
} |
3 changes: 3 additions & 0 deletions
3
packages/babel-parser/test/fixtures/comments/attachComment-false/options.json
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{ | ||
"attachComment": false | ||
} |