Removed the global parser arena
authorggaren@apple.com <ggaren@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Wed, 3 Dec 2014 23:23:56 +0000 (23:23 +0000)
committerggaren@apple.com <ggaren@apple.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Wed, 3 Dec 2014 23:23:56 +0000 (23:23 +0000)
commit0cd8a56948dfc5e4a98d540fceb477b26547a04b
tree982684182225b2683efea93e07fdb5cade0805b1
parentd24f4c62a851f60a30dc632187faa8ea28d832dc
Removed the global parser arena
https://bugs.webkit.org/show_bug.cgi?id=139236

Reviewed by Sam Weinig.

Simplifies parser lifetime logic.

There's no need to keep a global arena. We can create a new arena
each time we parse.

* bytecompiler/BytecodeGenerator.h: Global replace to pass around a
ParserArena instead of VM*, since the VM no longer owns the arena.
(JSC::BytecodeGenerator::parserArena):

* bytecompiler/NodesCodegen.cpp: Ditto.
(JSC::ArrayNode::toArgumentList):
(JSC::ApplyFunctionCallDotNode::emitBytecode):
* parser/ASTBuilder.h: Ditto.
(JSC::ASTBuilder::ASTBuilder):
(JSC::ASTBuilder::createSourceElements):
(JSC::ASTBuilder::createCommaExpr):
(JSC::ASTBuilder::createLogicalNot):
(JSC::ASTBuilder::createUnaryPlus):
(JSC::ASTBuilder::createVoid):
(JSC::ASTBuilder::thisExpr):
(JSC::ASTBuilder::createResolve):
(JSC::ASTBuilder::createObjectLiteral):
(JSC::ASTBuilder::createArray):
(JSC::ASTBuilder::createNumberExpr):
(JSC::ASTBuilder::createString):
(JSC::ASTBuilder::createBoolean):
(JSC::ASTBuilder::createNull):
(JSC::ASTBuilder::createBracketAccess):
(JSC::ASTBuilder::createDotAccess):
(JSC::ASTBuilder::createSpreadExpression):
(JSC::ASTBuilder::createRegExp):
(JSC::ASTBuilder::createNewExpr):
(JSC::ASTBuilder::createConditionalExpr):
(JSC::ASTBuilder::createAssignResolve):
(JSC::ASTBuilder::createFunctionExpr):
(JSC::ASTBuilder::createFunctionBody):
(JSC::ASTBuilder::createGetterOrSetterProperty):
(JSC::ASTBuilder::createArguments):
(JSC::ASTBuilder::createArgumentsList):
(JSC::ASTBuilder::createProperty):
(JSC::ASTBuilder::createPropertyList):
(JSC::ASTBuilder::createElementList):
(JSC::ASTBuilder::createFormalParameterList):
(JSC::ASTBuilder::createClause):
(JSC::ASTBuilder::createClauseList):
(JSC::ASTBuilder::createFuncDeclStatement):
(JSC::ASTBuilder::createBlockStatement):
(JSC::ASTBuilder::createExprStatement):
(JSC::ASTBuilder::createIfStatement):
(JSC::ASTBuilder::createForLoop):
(JSC::ASTBuilder::createForInLoop):
(JSC::ASTBuilder::createForOfLoop):
(JSC::ASTBuilder::createEmptyStatement):
(JSC::ASTBuilder::createVarStatement):
(JSC::ASTBuilder::createEmptyVarExpression):
(JSC::ASTBuilder::createReturnStatement):
(JSC::ASTBuilder::createBreakStatement):
(JSC::ASTBuilder::createContinueStatement):
(JSC::ASTBuilder::createTryStatement):
(JSC::ASTBuilder::createSwitchStatement):
(JSC::ASTBuilder::createWhileStatement):
(JSC::ASTBuilder::createDoWhileStatement):
(JSC::ASTBuilder::createLabelStatement):
(JSC::ASTBuilder::createWithStatement):
(JSC::ASTBuilder::createThrowStatement):
(JSC::ASTBuilder::createDebugger):
(JSC::ASTBuilder::createConstStatement):
(JSC::ASTBuilder::appendConstDecl):
(JSC::ASTBuilder::combineCommaNodes):
(JSC::ASTBuilder::createDeconstructingAssignment):
(JSC::ASTBuilder::Scope::Scope):
(JSC::ASTBuilder::createNumber):
(JSC::ASTBuilder::makeTypeOfNode):
(JSC::ASTBuilder::makeDeleteNode):
(JSC::ASTBuilder::makeNegateNode):
(JSC::ASTBuilder::makeBitwiseNotNode):
(JSC::ASTBuilder::makeMultNode):
(JSC::ASTBuilder::makeDivNode):
(JSC::ASTBuilder::makeModNode):
(JSC::ASTBuilder::makeAddNode):
(JSC::ASTBuilder::makeSubNode):
(JSC::ASTBuilder::makeLeftShiftNode):
(JSC::ASTBuilder::makeRightShiftNode):
(JSC::ASTBuilder::makeURightShiftNode):
(JSC::ASTBuilder::makeBitOrNode):
(JSC::ASTBuilder::makeBitAndNode):
(JSC::ASTBuilder::makeBitXOrNode):
(JSC::ASTBuilder::makeFunctionCallNode):
(JSC::ASTBuilder::makeBinaryNode):
(JSC::ASTBuilder::makeAssignNode):
(JSC::ASTBuilder::makePrefixNode):
(JSC::ASTBuilder::makePostfixNode):

* parser/NodeConstructors.h: Ditto.
(JSC::ParserArenaFreeable::operator new):
(JSC::ParserArenaDeletable::operator new):
(JSC::ParserArenaRefCounted::ParserArenaRefCounted):

* parser/Nodes.cpp: Ditto.
(JSC::ScopeNode::ScopeNode):
(JSC::ProgramNode::ProgramNode):
(JSC::ProgramNode::create):
(JSC::EvalNode::EvalNode):
(JSC::EvalNode::create):
(JSC::FunctionBodyNode::FunctionBodyNode):
(JSC::FunctionBodyNode::create):

* parser/Nodes.h: Ditto.
(JSC::ScopeNode::parserArena):

* parser/Parser.cpp:
(JSC::Parser<LexerType>::Parser):
(JSC::Parser<LexerType>::parseInner):
(JSC::Parser<LexerType>::parseProperty): The parser now owns its own
arena, and transfers ownership of its contents when invoking the ScopeNode
constructor.

* parser/Parser.h:
(JSC::Parser<LexerType>::parse): No need to explicitly reset the arena,
since its lifetime is tied to the parser's lifetime now.

* parser/SyntaxChecker.h:
(JSC::SyntaxChecker::createProperty):
(JSC::SyntaxChecker::createGetterOrSetterProperty):

* runtime/VM.cpp:
(JSC::VM::VM):
* runtime/VM.h: The point of the patch: no more global.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@176756 268f45cc-cd09-0410-ab3c-d52691b4dbfc
12 files changed:
Source/JavaScriptCore/ChangeLog
Source/JavaScriptCore/bytecompiler/BytecodeGenerator.h
Source/JavaScriptCore/bytecompiler/NodesCodegen.cpp
Source/JavaScriptCore/parser/ASTBuilder.h
Source/JavaScriptCore/parser/NodeConstructors.h
Source/JavaScriptCore/parser/Nodes.cpp
Source/JavaScriptCore/parser/Nodes.h
Source/JavaScriptCore/parser/Parser.cpp
Source/JavaScriptCore/parser/Parser.h
Source/JavaScriptCore/parser/SyntaxChecker.h
Source/JavaScriptCore/runtime/VM.cpp
Source/JavaScriptCore/runtime/VM.h