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>
102 lines
6.3 KiB
Plaintext
102 lines
6.3 KiB
Plaintext
parseUnit(f)
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skipErrorTokens(f)
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listener: beginCompilationUnit(f)
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syntheticPreviousToken(f)
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parseTopLevelDeclarationImpl(, Instance of 'DirectiveContext')
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parseMetadataStar()
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listener: beginMetadataStar(f)
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listener: endMetadataStar(0)
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parseTopLevelMemberImpl()
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listener: beginTopLevelMember(f)
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isReservedKeyword(()
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parseTopLevelMethod(, null, , Instance of 'NoType', null, f, false)
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listener: beginTopLevelMethod(, null)
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listener: handleNoType()
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ensureIdentifierPotentiallyRecovered(, topLevelFunctionDeclaration, false)
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listener: handleIdentifier(f, topLevelFunctionDeclaration)
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parseMethodTypeVar(f)
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listener: handleNoTypeVariables(()
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parseGetterOrFormalParameters(f, f, false, MemberKind.TopLevelMethod)
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parseFormalParameters(f, MemberKind.TopLevelMethod)
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parseFormalParametersRest((, MemberKind.TopLevelMethod)
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listener: beginFormalParameters((, MemberKind.TopLevelMethod)
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listener: endFormalParameters(0, (, ), MemberKind.TopLevelMethod)
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parseAsyncModifierOpt())
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listener: handleAsyncModifier(null, null)
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inPlainSync()
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parseFunctionBody(), false, false)
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listener: beginBlockFunctionBody({)
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notEofOrValue(}, ()
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parseStatement({)
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parseStatementX({)
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parseExpressionStatementOrDeclaration({, false)
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parseExpressionStatementOrDeclarationAfterModifiers({, {, null, null, null, false)
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looksLikeLocalFunction(()
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parseExpressionStatement({)
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parseExpression({)
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parsePrecedenceExpression({, 1, true)
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parseUnaryExpression({, true)
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parsePrimary({, expression)
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parseParenthesizedExpressionOrFunctionLiteral({)
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parseParenthesizedExpression({)
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parseExpressionInParenthesis({)
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parseExpressionInParenthesisRest(()
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parseExpression(()
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parsePrecedenceExpression((, 1, true)
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parseUnaryExpression((, true)
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parsePrimary((, expression)
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parseParenthesizedExpressionOrFunctionLiteral(()
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parseParenthesizedExpression(()
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parseExpressionInParenthesis(()
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parseExpressionInParenthesisRest(()
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parseExpression(()
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parsePrecedenceExpression((, 1, true)
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parseUnaryExpression((, true)
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parsePrimary((, expression)
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parseSendOrFunctionLiteral((, expression)
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parseSend((, expression)
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ensureIdentifier((, expression)
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listener: handleIdentifier(foo, expression)
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listener: handleNoTypeArguments(!)
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parseArgumentsOpt(foo)
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listener: handleNoArguments(!)
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listener: handleSend(foo, !)
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listener: handleNonNullAssertExpression(!)
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ensureCloseParen(!, ()
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listener: handleParenthesizedExpression(()
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parsePrimary(., expressionContinuation)
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parseSendOrFunctionLiteral(., expressionContinuation)
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parseSend(., expressionContinuation)
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ensureIdentifier(., expressionContinuation)
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listener: handleIdentifier(bar, expressionContinuation)
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listener: handleNoTypeArguments(!)
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parseArgumentsOpt(bar)
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listener: handleNoArguments(!)
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listener: handleSend(bar, !)
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listener: handleEndingBinaryExpression(.)
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listener: handleNonNullAssertExpression(!)
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ensureCloseParen(!, ()
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listener: handleParenthesizedExpression(()
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parseArgumentOrIndexStar(), Instance of 'NoTypeParamOrArg', false)
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parseExpression([)
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parsePrecedenceExpression([, 1, true)
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parseUnaryExpression([, true)
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parsePrimary([, expression)
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parseSendOrFunctionLiteral([, expression)
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parseSend([, expression)
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ensureIdentifier([, expression)
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listener: handleIdentifier(arg, expression)
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listener: handleNoTypeArguments(])
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parseArgumentsOpt(arg)
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listener: handleNoArguments(])
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listener: handleSend(arg, ])
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listener: handleIndexedExpression(null, [, ])
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ensureSemicolon(])
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listener: handleExpressionStatement(;)
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notEofOrValue(}, })
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listener: endBlockFunctionBody(1, {, })
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listener: endTopLevelMethod(f, null, })
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listener: endTopLevelDeclaration()
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reportAllErrorTokens(f)
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listener: endCompilationUnit(1, )
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