void StackVisitor::readInlinedFrame(CallFrame* callFrame, CodeOrigin* codeOrigin)
{
ASSERT(codeOrigin);
int frameOffset = inlinedFrameOffset(codeOrigin);
bool isInlined = !!frameOffset;
if (isInlined) {
InlineCallFrame* inlineCallFrame = codeOrigin->inlineCallFrame;
m_frame.m_callFrame = callFrame;
m_frame.m_inlineCallFrame = inlineCallFrame;
if (inlineCallFrame->argumentCountRegister.isValid())
m_frame.m_argumentCountIncludingThis = callFrame->r(inlineCallFrame->argumentCountRegister.offset()).unboxedInt32();
else
m_frame.m_argumentCountIncludingThis = inlineCallFrame->arguments.size();
m_frame.m_codeBlock = inlineCallFrame->baselineCodeBlock();
m_frame.m_bytecodeOffset = codeOrigin->bytecodeIndex;
JSFunction* callee = inlineCallFrame->calleeForCallFrame(callFrame);
m_frame.m_callee = callee;
ASSERT(m_frame.callee());
// The callerFrame just needs to be non-null to indicate that we
// haven't reached the last frame yet. Setting it to the root
// frame (i.e. the callFrame that this inlined frame is called from)
// would work just fine.
m_frame.m_callerFrame = callFrame;
return;
}
readNonInlinedFrame(callFrame, codeOrigin);
}
unsigned CallFrame::bytecodeOffsetFromCodeOriginIndex()
{
ASSERT(hasLocationAsCodeOriginIndex());
CodeBlock* codeBlock = this->codeBlock();
ASSERT(codeBlock);
CodeOrigin codeOrigin;
unsigned index = locationAsCodeOriginIndex();
ASSERT(codeBlock->canGetCodeOrigin(index));
codeOrigin = codeBlock->codeOrigin(index);
for (InlineCallFrame* inlineCallFrame = codeOrigin.inlineCallFrame; inlineCallFrame;) {
if (inlineCallFrame->baselineCodeBlock() == codeBlock)
return codeOrigin.bytecodeIndex;
codeOrigin = inlineCallFrame->caller;
inlineCallFrame = codeOrigin.inlineCallFrame;
}
return codeOrigin.bytecodeIndex;
}
void StackIterator::readInlinedFrame(CallFrame* callFrame, CodeOrigin* codeOrigin)
{
ASSERT(codeOrigin);
ASSERT(!callFrame->hasHostCallFrameFlag());
unsigned frameOffset = inlinedFrameOffset(codeOrigin);
bool isInlined = !!frameOffset;
if (isInlined) {
InlineCallFrame* inlineCallFrame = codeOrigin->inlineCallFrame;
m_frame.m_callFrame = callFrame;
m_frame.m_inlineCallFrame = inlineCallFrame;
m_frame.m_argumentCountIncludingThis = inlineCallFrame->arguments.size();
m_frame.m_codeBlock = inlineCallFrame->baselineCodeBlock();
m_frame.m_bytecodeOffset = codeOrigin->bytecodeIndex;
JSFunction* callee = inlineCallFrame->callee.get();
if (callee) {
m_frame.m_scope = callee->scope();
m_frame.m_callee = callee;
} else {
CallFrame* inlinedFrame = callFrame + frameOffset;
m_frame.m_scope = inlinedFrame->scope();
m_frame.m_callee = inlinedFrame->callee();
}
ASSERT(m_frame.scope());
ASSERT(m_frame.callee());
// The callerFrame just needs to be non-null to indicate that we
// haven't reached the last frame yet. Setting it to the root
// frame (i.e. the callFrame that this inlined frame is called from)
// would work just fine.
m_frame.m_callerFrame = callFrame;
return;
}
readNonInlinedFrame(callFrame, codeOrigin);
}