Paul Berry
8aa48712be
Previously, if a pattern variable declaration appeared outside of a function or method, the parser would get very confused. Now it recognizes the situation, issues a comprehensible error message, and replaces the pattern with a synthetic identifier token so that the analyzer AST is somewhat sensible. Fixes #51322. Bug: https://github.com/dart-lang/sdk/issues/51322 Change-Id: Ica5f060cb483a39c4e50942d639939b1fab40bea Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/293087 Reviewed-by: Johnni Winther <johnniwinther@google.com> Commit-Queue: Paul Berry <paulberry@google.com>
55 lines
3.1 KiB
Plaintext
55 lines
3.1 KiB
Plaintext
parseUnit(var)
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skipErrorTokens(var)
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listener: beginCompilationUnit(var)
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syntheticPreviousToken(var)
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parseTopLevelDeclarationImpl(, Instance of 'DirectiveContext')
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parseMetadataStar()
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listener: beginMetadataStar(var)
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listener: endMetadataStar(0)
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parseTopLevelMemberImpl()
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listener: beginTopLevelMember(var)
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skipOuterPattern(var)
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reportRecoverableErrorWithEnd((, ), PatternVariableDeclarationOutsideFunctionOrMethod)
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listener: handleRecoverableError(PatternVariableDeclarationOutsideFunctionOrMethod, (, ))
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rewriter()
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rewriter()
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parseFields(, null, null, null, null, null, null, var, var, Instance of 'NoType', , DeclarationKind.TopLevel, null, true)
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listener: beginFields(DeclarationKind.TopLevel, null, null, null, null, null, null, var, )
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listener: handleNoType(var)
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ensureIdentifierPotentiallyRecovered(var, topLevelVariableDeclaration, true)
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listener: handleIdentifier(, topLevelVariableDeclaration)
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parseFieldInitializerOpt(, , null, null, null, null, var, DeclarationKind.TopLevel, null)
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listener: beginFieldInitializer(=)
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parseExpression(=)
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looksLikeOuterPatternEquals(=)
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skipOuterPattern(=)
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parsePrecedenceExpression(=, 1, true, ConstantPatternContext.none)
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parseUnaryExpression(=, true, ConstantPatternContext.none)
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parsePrimary(=, expression, ConstantPatternContext.none)
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parseParenthesizedExpressionFunctionLiteralOrRecordLiteral(=, ConstantPatternContext.none)
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parseParenthesizedExpressionOrRecordLiteral(=, null, ConstantPatternContext.none)
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listener: beginParenthesizedExpressionOrRecordLiteral(()
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parseExpression(()
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looksLikeOuterPatternEquals(()
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skipOuterPattern(()
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parsePrecedenceExpression((, 1, true, ConstantPatternContext.none)
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parseUnaryExpression((, true, ConstantPatternContext.none)
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parsePrimary((, expression, ConstantPatternContext.none)
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parseLiteralInt(()
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listener: handleLiteralInt(0)
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parseExpression(,)
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looksLikeOuterPatternEquals(,)
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skipOuterPattern(,)
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parsePrecedenceExpression(,, 1, true, ConstantPatternContext.none)
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parseUnaryExpression(,, true, ConstantPatternContext.none)
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parsePrimary(,, expression, ConstantPatternContext.none)
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parseLiteralInt(,)
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listener: handleLiteralInt(1)
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ensureCloseParen(1, ()
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listener: endRecordLiteral((, 2, null)
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listener: endFieldInitializer(=, ;)
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listener: endTopLevelFields(null, null, null, null, var, 1, var, ;)
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listener: endTopLevelDeclaration()
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reportAllErrorTokens(var)
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listener: endCompilationUnit(1, )
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