diff options
Diffstat (limited to 'js/src/frontend/BytecodeEmitter.h')
| -rw-r--r-- | js/src/frontend/BytecodeEmitter.h | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/js/src/frontend/BytecodeEmitter.h b/js/src/frontend/BytecodeEmitter.h index 2c1adf827..bf1154e6e 100644 --- a/js/src/frontend/BytecodeEmitter.h +++ b/js/src/frontend/BytecodeEmitter.h @@ -19,6 +19,8 @@ #include "frontend/SourceNotes.h" #include "vm/Interpreter.h" +class OptionalEmitter; + namespace js { namespace frontend { @@ -456,6 +458,11 @@ struct MOZ_STACK_CLASS BytecodeEmitter MOZ_MUST_USE bool emitTree(ParseNode* pn, ValueUsage valueUsage = ValueUsage::WantValue, EmitLineNumberNote emitLineNote = EMIT_LINENOTE); + // Emit code for the optional tree rooted at pn. + MOZ_MUST_USE bool emitOptionalTree(ParseNode* pn, + OptionalEmitter& oe, + ValueUsage valueUsage = ValueUsage::WantValue); + // Emit code for the tree rooted at pn with its own TDZ cache. MOZ_MUST_USE bool emitTreeInBranch(ParseNode* pn, ValueUsage valueUsage = ValueUsage::WantValue); @@ -731,6 +738,10 @@ struct MOZ_STACK_CLASS BytecodeEmitter MOZ_MUST_USE bool emitAsyncIterator(); + // XXX currently used only by OptionalEmitter, research still required + // to identify when this was introduced in m-c. + MOZ_MUST_USE bool emitPushNotUndefinedOrNull(); + // Pops iterator from the top of the stack. Pushes the result of |.next()| // onto the stack. MOZ_MUST_USE bool emitIteratorNext(ParseNode* pn, IteratorKind kind = IteratorKind::Sync, @@ -776,6 +787,32 @@ struct MOZ_STACK_CLASS BytecodeEmitter MOZ_MUST_USE bool emitDeleteElement(ParseNode* pn); MOZ_MUST_USE bool emitDeleteExpression(ParseNode* pn); + // Optional methods which emit Optional Jump Target + MOZ_MUST_USE bool emitOptionalChain(ParseNode* optionalChain, + ValueUsage valueUsage); + MOZ_MUST_USE bool emitCalleeAndThisForOptionalChain(ParseNode* optionalChain, + ParseNode* callNode, + bool isCall); + MOZ_MUST_USE bool emitDeleteOptionalChain(ParseNode* deleteNode); + + // Optional methods which emit a shortCircuit jump. They need to be called by + // a method which emits an Optional Jump Target, see below. + MOZ_MUST_USE bool emitOptionalDotExpression(PropertyAccessBase* prop, + OptionalEmitter& oe, + ParseNode* calleeNode, + bool isCall); + MOZ_MUST_USE bool emitOptionalElemExpression(PropertyByValueBase* elem, + OptionalEmitter& oe, + ParseNode* calleeNode, + bool isCall); + MOZ_MUST_USE bool emitOptionalCall(ParseNode* callNode, + OptionalEmitter& oe, + ValueUsage valueUsage); + MOZ_MUST_USE bool emitDeletePropertyInOptChain(PropertyAccessBase* propExpr, + OptionalEmitter& oe); + MOZ_MUST_USE bool emitDeleteElementInOptChain(PropertyByValueBase* elemExpr, + OptionalEmitter& oe); + // |op| must be JSOP_TYPEOF or JSOP_TYPEOFEXPR. MOZ_MUST_USE bool emitTypeof(ParseNode* node, JSOp op); @@ -794,7 +831,22 @@ struct MOZ_STACK_CLASS BytecodeEmitter MOZ_MUST_USE bool isRestParameter(ParseNode* pn, bool* result); MOZ_MUST_USE bool emitOptimizeSpread(ParseNode* arg0, JumpList* jmp, bool* emitted); - MOZ_MUST_USE bool emitCallOrNew(ParseNode* pn, ValueUsage valueUsage = ValueUsage::WantValue); + MOZ_MUST_USE bool emitCallOrNew(ParseNode* pn, + ValueUsage valueUsage = ValueUsage::WantValue); + MOZ_MUST_USE bool emitCalleeAndThis(ParseNode* callNode, + ParseNode* calleeNode, + bool isCall); + MOZ_MUST_USE bool emitOptionalCalleeAndThis(ParseNode* callNode, + ParseNode* calleeNode, + bool isCall, + OptionalEmitter& oe); + MOZ_MUST_USE bool emitCallOrNewThis(ParseNode* callNode, + bool isCall); + MOZ_MUST_USE bool emitCallOrNewArgumentsAndEnd(ParseNode* callNode, + ParseNode* calleeNode, + bool isCall, + ValueUsage valueUsage); + MOZ_MUST_USE bool emitSelfHostedCallFunction(ParseNode* pn); MOZ_MUST_USE bool emitSelfHostedResumeGenerator(ParseNode* pn); MOZ_MUST_USE bool emitSelfHostedForceInterpreter(ParseNode* pn); |