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>
51 lines
1.8 KiB
Plaintext
51 lines
1.8 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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beginForStatement(for)
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beginMetadataStar(int)
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endMetadataStar(0)
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handleIdentifier(int, typeReference)
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handleNoTypeArguments(i)
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handleType(int, null)
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beginVariablesDeclaration(i, null, null)
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handleIdentifier(i, localVariableDeclaration)
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beginInitializedIdentifier(i)
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beginVariableInitializer(=)
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handleLiteralInt(0)
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endVariableInitializer(=)
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endInitializedIdentifier(i)
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endVariablesDeclaration(1, null)
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handleForInitializerLocalVariableDeclaration(0, false)
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handleIdentifier(i, expression)
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handleNoTypeArguments(<)
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handleNoArguments(<)
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handleSend(i, <)
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beginBinaryExpression(<)
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handleLiteralInt(10)
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endBinaryExpression(<)
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handleExpressionStatement(;)
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handleIdentifier(i, expression)
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handleNoTypeArguments(++)
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handleNoArguments(++)
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handleSend(i, ++)
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handleUnaryPostfixAssignmentExpression(++)
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handleForLoopParts(for, (, ;, 1)
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beginForStatementBody({)
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beginBlock({, BlockKind(statement))
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endBlock(0, {, }, BlockKind(statement))
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endForStatementBody(})
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endForStatement(})
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endBlockFunctionBody(1, {, })
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endTopLevelMethod(main, null, })
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endTopLevelDeclaration()
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endCompilationUnit(1, )
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