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>
40 lines
1.3 KiB
Plaintext
40 lines
1.3 KiB
Plaintext
beginCompilationUnit(f)
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beginMetadataStar(f)
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endMetadataStar(0)
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beginTopLevelMember(f)
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beginTopLevelMethod(, null)
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handleNoType()
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handleIdentifier(f, 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(foo, expression)
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handleNoTypeArguments(!)
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handleNoArguments(!)
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handleSend(foo, !)
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handleNonNullAssertExpression(!)
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handleIdentifier(bar, expressionContinuation)
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handleNoTypeArguments(!)
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handleNoArguments(!)
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handleSend(bar, !)
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handleEndingBinaryExpression(.)
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handleNonNullAssertExpression(!)
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handleIdentifier(arg, expression)
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handleNoTypeArguments(])
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handleNoArguments(])
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handleSend(arg, ])
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handleIndexedExpression(null, [, ])
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handleNonNullAssertExpression(!)
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handleIdentifier(arg2, expression)
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handleNoTypeArguments(])
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handleNoArguments(])
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handleSend(arg2, ])
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handleIndexedExpression(null, [, ])
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handleExpressionStatement(;)
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endBlockFunctionBody(1, {, })
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endTopLevelMethod(f, null, })
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endTopLevelDeclaration()
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endCompilationUnit(1, )
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