Jens Johansen
3a1f732c0f
This CL:
* Changes the events so beginX and endX events always comes in pairs
(though technically not right as some specific events can be beginX
endY --- but in those cases it is at least documented and used in code
that actually tests it).
-> This entails adding some events and converting something from
"beginX" to "handleX" instead.
* Adds a utility that can generate an AST of sorts directly from the
parser via a listener using the begin/end matching (and knowing of the
specific ones that doesn't match directly).
* Adds a test that checks that - at least for all tested (50,000+) files
- the AST actually generate "correctly", i.e. matches up begin/ends
and ends up with a single top entry "CompilationUnit".
* Adds a different visualization to the parser listener events by
displaying the "AST directly from the parser" in a UI that can be
navigated. The visualization may not be the best, but it's certainly
a stepping stone.
Change-Id: I9b27f7bbf3be442adc92f357c7b3c46da6f84cf7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/159664
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
164 lines
9.3 KiB
Plaintext
164 lines
9.3 KiB
Plaintext
parseUnit(class)
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skipErrorTokens(class)
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listener: beginCompilationUnit(class)
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syntheticPreviousToken(class)
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parseTopLevelDeclarationImpl(, Instance of 'DirectiveContext')
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parseMetadataStar()
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listener: beginMetadataStar(class)
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listener: endMetadataStar(0)
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parseTopLevelKeywordDeclaration(, class, Instance of 'DirectiveContext')
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parseClassDeclarationModifiers(, class)
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parseClassOrNamedMixinApplication(null, class)
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listener: beginClassOrNamedMixinApplicationPrelude(class)
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ensureIdentifier(class, classOrMixinDeclaration)
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listener: handleIdentifier(X, classOrMixinDeclaration)
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listener: handleNoTypeVariables({)
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listener: beginClassDeclaration(class, null, X)
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parseClass(X, class, class, X)
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parseClassHeaderOpt(X, class, class)
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parseClassExtendsOpt(X)
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listener: handleNoType(X)
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listener: handleClassExtends(null, 1)
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parseWithClauseOpt(X)
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listener: handleClassNoWithClause()
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parseClassOrMixinImplementsOpt(X)
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listener: handleClassOrMixinImplements(null, 0)
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listener: handleClassHeader(class, class, null)
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parseClassOrMixinOrExtensionBody(X, DeclarationKind.Class, X)
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listener: beginClassOrMixinBody(DeclarationKind.Class, {)
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notEofOrValue(}, late)
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parseClassOrMixinOrExtensionMemberImpl({, DeclarationKind.Class, X)
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parseMetadataStar({)
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listener: beginMetadataStar(late)
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listener: endMetadataStar(0)
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listener: beginMember()
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isReservedKeyword(;)
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parseFields({, null, null, null, null, late, null, late, Instance of 'NoType', x1, DeclarationKind.Class, X, false)
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listener: beginFields({)
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reportRecoverableError(x1, MissingConstFinalVarOrType)
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listener: handleRecoverableError(MissingConstFinalVarOrType, x1, x1)
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listener: handleNoType(late)
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ensureIdentifierPotentiallyRecovered(late, fieldDeclaration, false)
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listener: handleIdentifier(x1, fieldDeclaration)
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parseFieldInitializerOpt(x1, x1, late, null, null, null, DeclarationKind.Class, X)
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listener: handleNoFieldInitializer(;)
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listener: endClassFields(null, null, null, null, late, null, 1, late, ;)
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listener: endMember()
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notEofOrValue(}, static)
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parseClassOrMixinOrExtensionMemberImpl(;, DeclarationKind.Class, X)
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parseMetadataStar(;)
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listener: beginMetadataStar(static)
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listener: endMetadataStar(0)
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listener: beginMember()
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isReservedKeyword(;)
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parseFields(;, null, null, static, null, late, null, late, Instance of 'NoType', x2, DeclarationKind.Class, X, false)
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listener: beginFields(;)
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reportRecoverableError(x2, MissingConstFinalVarOrType)
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listener: handleRecoverableError(MissingConstFinalVarOrType, x2, x2)
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listener: handleNoType(late)
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ensureIdentifierPotentiallyRecovered(late, fieldDeclaration, false)
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listener: handleIdentifier(x2, fieldDeclaration)
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parseFieldInitializerOpt(x2, x2, late, null, null, null, DeclarationKind.Class, X)
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listener: handleNoFieldInitializer(;)
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listener: endClassFields(null, null, static, null, late, null, 1, static, ;)
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listener: endMember()
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notEofOrValue(}, covariant)
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parseClassOrMixinOrExtensionMemberImpl(;, DeclarationKind.Class, X)
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parseMetadataStar(;)
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listener: beginMetadataStar(covariant)
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listener: endMetadataStar(0)
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listener: beginMember()
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isReservedKeyword(;)
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parseFields(;, null, null, null, covariant, late, null, late, Instance of 'NoType', x3, DeclarationKind.Class, X, false)
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listener: beginFields(;)
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reportRecoverableError(x3, MissingConstFinalVarOrType)
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listener: handleRecoverableError(MissingConstFinalVarOrType, x3, x3)
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listener: handleNoType(late)
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ensureIdentifierPotentiallyRecovered(late, fieldDeclaration, false)
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listener: handleIdentifier(x3, fieldDeclaration)
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parseFieldInitializerOpt(x3, x3, late, null, null, null, DeclarationKind.Class, X)
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listener: handleNoFieldInitializer(;)
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listener: endClassFields(null, null, null, covariant, late, null, 1, covariant, ;)
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listener: endMember()
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notEofOrValue(}, late)
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parseClassOrMixinOrExtensionMemberImpl(;, DeclarationKind.Class, X)
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parseMetadataStar(;)
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listener: beginMetadataStar(late)
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listener: endMetadataStar(0)
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listener: beginMember()
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isReservedKeyword(=)
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parseFields(;, null, null, null, null, late, null, late, Instance of 'NoType', x4, DeclarationKind.Class, X, false)
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listener: beginFields(;)
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reportRecoverableError(x4, MissingConstFinalVarOrType)
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listener: handleRecoverableError(MissingConstFinalVarOrType, x4, x4)
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listener: handleNoType(late)
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ensureIdentifierPotentiallyRecovered(late, fieldDeclaration, false)
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listener: handleIdentifier(x4, fieldDeclaration)
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parseFieldInitializerOpt(x4, x4, late, null, null, null, DeclarationKind.Class, X)
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listener: beginFieldInitializer(=)
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parseExpression(=)
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parsePrecedenceExpression(=, 1, true)
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parseUnaryExpression(=, true)
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parsePrimary(=, expression)
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parseLiteralInt(=)
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listener: handleLiteralInt(0)
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listener: endFieldInitializer(=, ;)
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listener: endClassFields(null, null, null, null, late, null, 1, late, ;)
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listener: endMember()
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notEofOrValue(}, static)
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parseClassOrMixinOrExtensionMemberImpl(;, DeclarationKind.Class, X)
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parseMetadataStar(;)
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listener: beginMetadataStar(static)
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listener: endMetadataStar(0)
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listener: beginMember()
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isReservedKeyword(=)
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parseFields(;, null, null, static, null, late, null, late, Instance of 'NoType', x5, DeclarationKind.Class, X, false)
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listener: beginFields(;)
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reportRecoverableError(x5, MissingConstFinalVarOrType)
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listener: handleRecoverableError(MissingConstFinalVarOrType, x5, x5)
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listener: handleNoType(late)
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ensureIdentifierPotentiallyRecovered(late, fieldDeclaration, false)
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listener: handleIdentifier(x5, fieldDeclaration)
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parseFieldInitializerOpt(x5, x5, late, null, null, null, DeclarationKind.Class, X)
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listener: beginFieldInitializer(=)
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parseExpression(=)
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parsePrecedenceExpression(=, 1, true)
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parseUnaryExpression(=, true)
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parsePrimary(=, expression)
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parseLiteralInt(=)
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listener: handleLiteralInt(0)
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listener: endFieldInitializer(=, ;)
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listener: endClassFields(null, null, static, null, late, null, 1, static, ;)
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listener: endMember()
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notEofOrValue(}, covariant)
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parseClassOrMixinOrExtensionMemberImpl(;, DeclarationKind.Class, X)
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parseMetadataStar(;)
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listener: beginMetadataStar(covariant)
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listener: endMetadataStar(0)
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listener: beginMember()
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isReservedKeyword(=)
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parseFields(;, null, null, null, covariant, late, null, late, Instance of 'NoType', x6, DeclarationKind.Class, X, false)
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listener: beginFields(;)
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reportRecoverableError(x6, MissingConstFinalVarOrType)
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listener: handleRecoverableError(MissingConstFinalVarOrType, x6, x6)
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listener: handleNoType(late)
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ensureIdentifierPotentiallyRecovered(late, fieldDeclaration, false)
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listener: handleIdentifier(x6, fieldDeclaration)
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parseFieldInitializerOpt(x6, x6, late, null, null, null, DeclarationKind.Class, X)
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listener: beginFieldInitializer(=)
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parseExpression(=)
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parsePrecedenceExpression(=, 1, true)
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parseUnaryExpression(=, true)
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parsePrimary(=, expression)
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parseLiteralInt(=)
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listener: handleLiteralInt(0)
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listener: endFieldInitializer(=, ;)
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listener: endClassFields(null, null, null, covariant, late, null, 1, covariant, ;)
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listener: endMember()
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notEofOrValue(}, })
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listener: endClassOrMixinBody(DeclarationKind.Class, 6, {, })
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listener: endClassDeclaration(class, })
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listener: endTopLevelDeclaration()
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reportAllErrorTokens(class)
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listener: endCompilationUnit(1, )
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