static ResolveGlobalStatus computeForStructure(CodeBlock* codeBlock, Structure* structure, Identifier& identifier)
{
unsigned attributesIgnored;
JSCell* specificValue;
PropertyOffset offset = structure->get(*codeBlock->globalData(), identifier, attributesIgnored, specificValue);
if (structure->isDictionary())
specificValue = 0;
if (!isValidOffset(offset))
return ResolveGlobalStatus();
return ResolveGlobalStatus(ResolveGlobalStatus::Simple, structure, offset, specificValue);
}
ResolveGlobalStatus ResolveGlobalStatus::computeFor(CodeBlock* codeBlock, int, ResolveOperation* operation, Identifier& identifier)
{
ASSERT(operation->m_operation == ResolveOperation::GetAndReturnGlobalProperty);
if (!operation->m_structure)
return ResolveGlobalStatus();
return computeForStructure(codeBlock, operation->m_structure.get(), identifier);
}
static ResolveGlobalStatus computeForLLInt(CodeBlock* codeBlock, unsigned bytecodeIndex, Identifier& identifier)
{
#if ENABLE(LLINT)
Instruction* instruction = codeBlock->instructions().begin() + bytecodeIndex;
ASSERT(instruction[0].u.opcode == LLInt::getOpcode(op_resolve_global));
Structure* structure = instruction[3].u.structure.get();
if (!structure)
return ResolveGlobalStatus();
return computeForStructure(codeBlock, structure, identifier);
#else
UNUSED_PARAM(codeBlock);
UNUSED_PARAM(bytecodeIndex);
UNUSED_PARAM(identifier);
return ResolveGlobalStatus();
#endif
}
ResolveGlobalStatus ResolveGlobalStatus::computeFor(CodeBlock* codeBlock, unsigned bytecodeIndex, Identifier& identifier)
{
#if ENABLE(JIT) && ENABLE(VALUE_PROFILER)
if (!codeBlock->numberOfGlobalResolveInfos())
return computeForLLInt(codeBlock, bytecodeIndex, identifier);
if (codeBlock->likelyToTakeSlowCase(bytecodeIndex))
return ResolveGlobalStatus(TakesSlowPath);
GlobalResolveInfo& globalResolveInfo = codeBlock->globalResolveInfoForBytecodeOffset(bytecodeIndex);
if (!globalResolveInfo.structure)
return computeForLLInt(codeBlock, bytecodeIndex, identifier);
return computeForStructure(codeBlock, globalResolveInfo.structure.get(), identifier);
#else
return computeForLLInt(codeBlock, bytecodeIndex, identifier);
#endif
}