Пример #1
0
bool CodeOrigin::isApproximatelyEqualTo(const CodeOrigin& other) const
{
    CodeOrigin a = *this;
    CodeOrigin b = other;

    if (!a.isSet())
        return !b.isSet();
    if (!b.isSet())
        return false;
    
    if (a.isHashTableDeletedValue())
        return b.isHashTableDeletedValue();
    if (b.isHashTableDeletedValue())
        return false;
    
    for (;;) {
        ASSERT(a.isSet());
        ASSERT(b.isSet());
        
        if (a.bytecodeIndex != b.bytecodeIndex)
            return false;
        
        if ((!!a.inlineCallFrame) != (!!b.inlineCallFrame))
            return false;
        
        if (!a.inlineCallFrame)
            return true;
        
        if (a.inlineCallFrame->executable.get() != b.inlineCallFrame->executable.get())
            return false;
        
        a = a.inlineCallFrame->caller;
        b = b.inlineCallFrame->caller;
    }
}
Пример #2
0
void storeCodeOrigin(State& state, CCallHelpers& jit, CodeOrigin codeOrigin)
{
    if (!codeOrigin.isSet())
        return;
    
    unsigned index = state.jitCode->common.addCodeOrigin(codeOrigin);
    unsigned locationBits = CallFrame::Location::encodeAsCodeOriginIndex(index);
    jit.store32(
        CCallHelpers::TrustedImm32(locationBits),
        CCallHelpers::tagFor(static_cast<VirtualRegister>(JSStack::ArgumentCount)));
}