зеркало из https://github.com/mozilla/gecko-dev.git
Simplified NEW_CLASS, using a single do .. while loop, introducing nextPC instruction iterator to simplify initial case. now calls all defined constructors.
This commit is contained in:
beard%netscape.com
Родитель
f6e57b9a5e
Коммит
714e109074
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@ -567,19 +567,18 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
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case RETURN_VOID:
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{
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JSValue result;
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Linkage *linkage = mLinkage;
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if (!linkage)
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{
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// let the garbage collector free activations.
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mActivation = 0;
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return result;
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return kUndefinedValue;
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}
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mLinkage = linkage->mNext;
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mActivation = linkage->mActivation;
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registers = &mActivation->mRegisters;
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if (linkage->mResult.first != NotARegister)
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(*registers)[linkage->mResult.first] = result;
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(*registers)[linkage->mResult.first] = kUndefinedValue;
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mPC = linkage->mReturnPC;
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endPC = mActivation->mICode->its_iCode->end();
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}
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@ -640,36 +639,29 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
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if (thisClass) {
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JSInstance* thisInstance = new(thisClass) JSInstance(thisClass);
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(*registers)[dst(nc).first] = thisInstance;
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// call the constructor, if any.
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ICodeModule* ctor = thisClass->getConstructor();
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if (ctor) {
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TypedRegister voidRegister(NotARegister, &None_Type);
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mLinkage = new Linkage(mLinkage, ++mPC,
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mActivation, voidRegister);
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JSValues args(1);
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args[0] = thisInstance;
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mActivation = new Activation(ctor, args);
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registers = &mActivation->mRegisters;
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mPC = ctor->its_iCode->begin();
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endPC = ctor->its_iCode->end();
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// see if there are superclasses to initialize before.
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thisClass = thisClass->getSuperClass();
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while (thisClass) {
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ctor = thisClass->getConstructor();
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if (ctor) {
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mLinkage = new Linkage(mLinkage, mPC,
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mActivation, voidRegister);
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mActivation = new Activation(ctor, args);
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registers = &mActivation->mRegisters;
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mPC = ctor->its_iCode->begin();
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endPC = ctor->its_iCode->end();
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}
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thisClass = thisClass->getSuperClass();
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JSValues args(1);
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args[0] = thisInstance;
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TypedRegister voidRegister(NotARegister, &None_Type);
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InstructionIterator nextPC = ++mPC;
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do {
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// call the constructor(s), if any.
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ICodeModule* ctor = thisClass->getConstructor();
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if (ctor) {
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mLinkage = new Linkage(mLinkage, nextPC,
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mActivation, voidRegister);
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mActivation = new Activation(ctor, args);
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registers = &mActivation->mRegisters;
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nextPC = ctor->its_iCode->begin();
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endPC = ctor->its_iCode->end();
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}
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continue;
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}
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thisClass = thisClass->getSuperClass();
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} while (thisClass);
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mPC = nextPC;
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continue;
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}
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} else {
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// XXX Runtime error.
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}
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}
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break;
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@ -567,19 +567,18 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
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case RETURN_VOID:
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{
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JSValue result;
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Linkage *linkage = mLinkage;
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if (!linkage)
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{
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// let the garbage collector free activations.
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mActivation = 0;
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return result;
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return kUndefinedValue;
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}
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mLinkage = linkage->mNext;
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mActivation = linkage->mActivation;
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registers = &mActivation->mRegisters;
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if (linkage->mResult.first != NotARegister)
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(*registers)[linkage->mResult.first] = result;
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(*registers)[linkage->mResult.first] = kUndefinedValue;
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mPC = linkage->mReturnPC;
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endPC = mActivation->mICode->its_iCode->end();
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}
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@ -640,36 +639,29 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
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if (thisClass) {
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JSInstance* thisInstance = new(thisClass) JSInstance(thisClass);
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(*registers)[dst(nc).first] = thisInstance;
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// call the constructor, if any.
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ICodeModule* ctor = thisClass->getConstructor();
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if (ctor) {
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TypedRegister voidRegister(NotARegister, &None_Type);
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mLinkage = new Linkage(mLinkage, ++mPC,
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mActivation, voidRegister);
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JSValues args(1);
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args[0] = thisInstance;
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mActivation = new Activation(ctor, args);
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registers = &mActivation->mRegisters;
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mPC = ctor->its_iCode->begin();
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endPC = ctor->its_iCode->end();
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// see if there are superclasses to initialize before.
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thisClass = thisClass->getSuperClass();
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while (thisClass) {
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ctor = thisClass->getConstructor();
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if (ctor) {
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mLinkage = new Linkage(mLinkage, mPC,
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mActivation, voidRegister);
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mActivation = new Activation(ctor, args);
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registers = &mActivation->mRegisters;
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mPC = ctor->its_iCode->begin();
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endPC = ctor->its_iCode->end();
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}
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thisClass = thisClass->getSuperClass();
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JSValues args(1);
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args[0] = thisInstance;
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TypedRegister voidRegister(NotARegister, &None_Type);
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InstructionIterator nextPC = ++mPC;
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do {
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// call the constructor(s), if any.
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ICodeModule* ctor = thisClass->getConstructor();
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if (ctor) {
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mLinkage = new Linkage(mLinkage, nextPC,
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mActivation, voidRegister);
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mActivation = new Activation(ctor, args);
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registers = &mActivation->mRegisters;
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nextPC = ctor->its_iCode->begin();
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endPC = ctor->its_iCode->end();
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}
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continue;
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}
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thisClass = thisClass->getSuperClass();
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} while (thisClass);
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mPC = nextPC;
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continue;
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}
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} else {
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// XXX Runtime error.
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}
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}
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break;
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