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>
188 lines
7.0 KiB
Plaintext
188 lines
7.0 KiB
Plaintext
beginCompilationUnit(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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beginMetadataStar(dynamic)
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endMetadataStar(0)
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handleIdentifier(dynamic, typeReference)
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handleNoTypeArguments(foo)
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handleType(dynamic, null)
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beginVariablesDeclaration(foo, null, null)
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handleIdentifier(foo, localVariableDeclaration)
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beginInitializedIdentifier(foo)
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beginVariableInitializer(=)
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beginNewExpression(new)
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handleIdentifier(X, constructorReference)
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beginConstructorReference(X)
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handleNoTypeArguments(()
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handleNoConstructorReferenceContinuationAfterTypeArguments(()
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endConstructorReference(X, null, ()
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beginArguments(()
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endArguments(0, (, ))
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endNewExpression(new)
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endVariableInitializer(=)
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endInitializedIdentifier(foo)
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endVariablesDeclaration(1, ;)
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beginMetadataStar(var)
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endMetadataStar(0)
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handleNoType(var)
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beginVariablesDeclaration(bar, null, var)
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handleIdentifier(bar, localVariableDeclaration)
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beginInitializedIdentifier(bar)
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beginVariableInitializer(=)
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handleIdentifier(foo, expression)
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handleNoTypeArguments(.)
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handleNoArguments(.)
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handleSend(foo, .)
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handleIdentifier(late, expressionContinuation)
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handleNoTypeArguments(;)
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handleNoArguments(;)
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handleSend(late, ;)
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handleEndingBinaryExpression(.)
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endVariableInitializer(=)
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endInitializedIdentifier(bar)
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endVariablesDeclaration(1, ;)
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handleIdentifier(late, expression)
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handleNoTypeArguments(()
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beginArguments(()
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endArguments(0, (, ))
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handleSend(late, ;)
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handleExpressionStatement(;)
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handleIdentifier(bar, expression)
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handleNoTypeArguments(()
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beginArguments(()
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endArguments(0, (, ))
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handleSend(bar, ;)
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handleExpressionStatement(;)
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beginNewExpression(new)
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handleIdentifier(X, constructorReference)
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beginConstructorReference(X)
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handleNoTypeArguments(()
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handleNoConstructorReferenceContinuationAfterTypeArguments(()
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endConstructorReference(X, null, ()
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beginArguments(()
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endArguments(0, (, ))
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endNewExpression(new)
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handleIdentifier(late, expressionContinuation)
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handleNoTypeArguments(()
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beginArguments(()
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endArguments(0, (, ))
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handleSend(late, ;)
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handleEndingBinaryExpression(.)
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handleExpressionStatement(;)
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beginNewExpression(new)
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handleIdentifier(Y, constructorReference)
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beginConstructorReference(Y)
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handleNoTypeArguments(()
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handleNoConstructorReferenceContinuationAfterTypeArguments(()
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endConstructorReference(Y, null, ()
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beginArguments(()
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endArguments(0, (, ))
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endNewExpression(new)
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handleIdentifier(late, expressionContinuation)
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handleNoTypeArguments(;)
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handleNoArguments(;)
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handleSend(late, ;)
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handleEndingBinaryExpression(.)
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handleExpressionStatement(;)
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endBlockFunctionBody(6, {, })
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endTopLevelMethod(main, null, })
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endTopLevelDeclaration(late)
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beginMetadataStar(late)
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endMetadataStar(0)
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beginTopLevelMember(late)
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beginTopLevelMethod(}, null)
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handleNoType(})
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handleIdentifier(late, 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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beginLiteralString("hello")
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endLiteralString(0, ))
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endArguments(1, (, ))
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handleSend(print, ;)
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handleExpressionStatement(;)
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endBlockFunctionBody(1, {, })
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endTopLevelMethod(late, 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(X, classOrMixinDeclaration)
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handleNoTypeVariables({)
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beginClassDeclaration(class, null, X)
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handleNoType(X)
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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(late)
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endMetadataStar(0)
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beginMember()
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beginMethod(null, null, null, null, null, late)
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handleNoType({)
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handleIdentifier(late, methodDeclaration)
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handleNoTypeVariables(()
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beginFormalParameters((, MemberKind.NonStaticMethod)
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endFormalParameters(0, (, ), MemberKind.NonStaticMethod)
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handleNoInitializers()
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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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beginLiteralString("hello")
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endLiteralString(0, ))
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endArguments(1, (, ))
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handleSend(print, ;)
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handleExpressionStatement(;)
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endBlockFunctionBody(1, {, })
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endClassMethod(null, late, (, null, })
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endMember()
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endClassOrMixinBody(DeclarationKind.Class, 1, {, })
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endClassDeclaration(class, })
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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(Y, classOrMixinDeclaration)
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handleNoTypeVariables({)
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beginClassDeclaration(class, null, Y)
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handleNoType(Y)
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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(int)
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endMetadataStar(0)
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beginMember()
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beginFields({)
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handleIdentifier(int, typeReference)
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handleNoTypeArguments(late)
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handleType(int, null)
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handleIdentifier(late, fieldDeclaration)
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beginFieldInitializer(=)
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handleLiteralInt(42)
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endFieldInitializer(=, ;)
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endClassFields(null, null, null, null, null, null, 1, int, ;)
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endMember()
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endClassOrMixinBody(DeclarationKind.Class, 1, {, })
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endClassDeclaration(class, })
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endTopLevelDeclaration()
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endCompilationUnit(4, )
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