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>
149 lines
5.4 KiB
Plaintext
149 lines
5.4 KiB
Plaintext
beginCompilationUnit(bool)
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beginMetadataStar(bool)
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endMetadataStar(0)
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beginTopLevelMember(bool)
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beginFields()
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handleIdentifier(bool, typeReference)
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handleNoTypeArguments(x)
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handleType(bool, null)
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handleIdentifier(x, topLevelVariableDeclaration)
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handleNoFieldInitializer(;)
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endTopLevelFields(null, null, null, null, null, 1, bool, ;)
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endTopLevelDeclaration(bool)
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beginMetadataStar(bool)
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endMetadataStar(0)
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beginTopLevelMember(bool)
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beginFields(;)
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handleIdentifier(bool, typeReference)
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handleNoTypeArguments(x)
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handleType(bool, null)
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handleIdentifier(x, topLevelVariableDeclaration)
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handleNoFieldInitializer(;)
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endTopLevelFields(null, null, null, null, null, 1, bool, ;)
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endTopLevelDeclaration(errors)
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beginMetadataStar(errors)
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endMetadataStar(0)
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beginTopLevelMember(errors)
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beginTopLevelMethod(;, null)
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handleNoType(;)
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handleIdentifier(errors, topLevelFunctionDeclaration)
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handleNoTypeVariables(()
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beginFormalParameters((, MemberKind.TopLevelMethod)
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endFormalParameters(0, (, ), MemberKind.TopLevelMethod)
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handleAsyncModifier(null, null)
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beginBlockFunctionBody({)
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handleIdentifier(print, expression)
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handleNoTypeArguments(()
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beginArguments(()
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handleIdentifier(x, expression)
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handleNoTypeArguments())
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handleNoArguments())
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handleSend(x, ))
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endArguments(1, (, ))
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handleSend(print, ;)
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handleExpressionStatement(;)
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handleIdentifier(print, expression)
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handleNoTypeArguments(()
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beginArguments(()
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handleIdentifier(x, expression)
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handleNoTypeArguments(!)
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handleNoArguments(!)
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handleSend(x, !)
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handleNonNullAssertExpression(!)
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endArguments(1, (, ))
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handleSend(print, ;)
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handleExpressionStatement(;)
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handleIdentifier(print, expression)
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handleNoTypeArguments(()
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beginArguments(()
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handleIdentifier(x, expression)
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handleNoTypeArguments())
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handleNoArguments())
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handleSend(x, ))
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handleUnaryPrefixExpression(!)
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endArguments(1, (, ))
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handleSend(print, ;)
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handleExpressionStatement(;)
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endBlockFunctionBody(3, {, })
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endTopLevelMethod(errors, null, })
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endTopLevelDeclaration(class)
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beginMetadataStar(class)
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endMetadataStar(0)
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beginClassOrNamedMixinApplicationPrelude(class)
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handleIdentifier(C, classOrMixinDeclaration)
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handleNoTypeVariables({)
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beginClassDeclaration(class, null, C)
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handleNoType(C)
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handleClassExtends(null, 1)
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handleClassNoWithClause()
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handleClassOrMixinImplements(null, 0)
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handleClassHeader(class, class, null)
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beginClassOrMixinBody(DeclarationKind.Class, {)
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beginMetadataStar(C)
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endMetadataStar(0)
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beginMember()
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beginMethod(null, null, null, null, null, C)
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handleNoType({)
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handleIdentifier(C, methodDeclaration)
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handleIdentifier(c0, methodDeclarationContinuation)
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handleQualified(.)
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handleNoTypeVariables(()
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beginFormalParameters((, MemberKind.NonStaticMethod)
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endFormalParameters(0, (, ), MemberKind.NonStaticMethod)
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beginInitializers(:)
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beginInitializer(super)
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handleSuperExpression(super, expression)
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handleNoTypeArguments(()
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beginArguments(()
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endArguments(0, (, ))
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handleSend(super, ;)
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endInitializer(;)
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endInitializers(1, :, ;)
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handleAsyncModifier(null, null)
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handleEmptyFunctionBody(;)
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endClassConstructor(null, C, (, :, ;)
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endMember()
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beginMetadataStar(C)
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endMetadataStar(0)
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beginMember()
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beginMethod(null, null, null, null, null, C)
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handleNoType(;)
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handleIdentifier(C, methodDeclaration)
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handleIdentifier(c1, methodDeclarationContinuation)
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handleQualified(.)
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handleNoTypeVariables(()
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beginFormalParameters((, MemberKind.NonStaticMethod)
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endFormalParameters(0, (, ), MemberKind.NonStaticMethod)
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beginInitializers(:)
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beginInitializer(super)
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handleSuperExpression(super, expression)
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handleNoTypeArguments(()
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beginArguments(()
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endArguments(0, (, ))
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handleSend(super, !)
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handleNonNullAssertExpression(!)
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endInitializer(;)
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endInitializers(1, :, ;)
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handleAsyncModifier(null, null)
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handleEmptyFunctionBody(;)
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endClassConstructor(null, C, (, :, ;)
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endMember()
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endClassOrMixinBody(DeclarationKind.Class, 2, {, })
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endClassDeclaration(class, })
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endTopLevelDeclaration(main)
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beginMetadataStar(main)
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endMetadataStar(0)
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beginTopLevelMember(main)
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beginTopLevelMethod(}, null)
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handleNoType(})
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handleIdentifier(main, topLevelFunctionDeclaration)
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handleNoTypeVariables(()
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beginFormalParameters((, MemberKind.TopLevelMethod)
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endFormalParameters(0, (, ), MemberKind.TopLevelMethod)
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handleAsyncModifier(null, null)
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beginBlockFunctionBody({)
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endBlockFunctionBody(0, {, })
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endTopLevelMethod(main, null, })
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endTopLevelDeclaration()
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endCompilationUnit(5, )
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