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>
29 lines
1.0 KiB
Plaintext
29 lines
1.0 KiB
Plaintext
beginCompilationUnit(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(covariant)
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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(x)
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handleType(int, null)
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handleIdentifier(x, fieldDeclaration)
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handleNoFieldInitializer(;)
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endClassFields(null, null, null, covariant, late, final, 1, covariant, ;)
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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(1, )
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