refactor: add parse*Literal parser routines#13333
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JLHwung merged 8 commits intobabel:mainfrom May 19, 2021
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fedeci
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May 19, 2021
| "type": "File", | ||
| "start":0,"end":51,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":51}}, | ||
| "errors": [ | ||
| "SyntaxError: 'import' and 'export' may appear only with 'sourceType: \"module\"' (1:0)" |
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Nope, I forgot to add sourceType module to options.json😬
Co-authored-by: Federico Ciardi <fed.ciardi@gmail.com>
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nicolo-ribaudo
approved these changes
May 19, 2021
| return this.finishNode<T>(node, type); | ||
| } | ||
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| parseLiteral<T: N.Literal>(value: any, type: /*T["kind"]*/ string): T { |
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Maybe one of these works:
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| parseLiteral<T: N.Literal>(value: any, type: /*T["kind"]*/ string): T { | |
| parseLiteral<T: N.Literal>(value: any, type: $PropertyType<T, "kind">): T { |
Suggested change
| parseLiteral<T: N.Literal>(value: any, type: /*T["kind"]*/ string): T { | |
| parseLiteral<T: N.Literal>(value: any, type: $ElementType<T, "kind">): T { |
nicolo-ribaudo
approved these changes
May 19, 2021
fedeci
approved these changes
May 19, 2021
This was referenced Jun 10, 2021
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This PR should be reviewed by commits.
Currently we handle the
StringLiteral->Literalconversion inparseExprAtom, however, in the scenarios like module string names or import assertions, we can not callparseExprAtomsince only a limited set of PrimaryExpression (namelyStringLiteralandIdentifier) are accepted in the grammar, thus theStringLiteralin such places is not converted to aLiteralas expected from theestreeplugin.Thus the goal of this PR is to break the conversion logic of
parseExprAtomto more granularparseSomeLiteral, so whenever a string literal is created fromparseStringLiteral, theestreeplugin can handle it via subclassedparseStringLiteralmethod.This PR also simplifies the interface of
parseLiteral: It turns out the optional position input is only used by Flow plugin when it parses-1as a dedicated NumberTypeAnnotation, thus we can remove the branch logic ofparseLiteral.