DFGDesiredWatchpoints.cpp [plain text]
#include "config.h"
#include "DFGDesiredWatchpoints.h"
#if ENABLE(DFG_JIT)
#include "ArrayBufferNeuteringWatchpoint.h"
#include "CodeBlock.h"
#include "JSCInlines.h"
namespace JSC { namespace DFG {
void ArrayBufferViewWatchpointAdaptor::add(
CodeBlock* codeBlock, JSArrayBufferView* view, CommonData& common)
{
VM& vm = *codeBlock->vm();
Watchpoint* watchpoint = common.watchpoints.add(codeBlock);
ArrayBufferNeuteringWatchpoint* neuteringWatchpoint =
ArrayBufferNeuteringWatchpoint::create(vm);
neuteringWatchpoint->set().add(watchpoint);
codeBlock->addConstant(neuteringWatchpoint);
vm.heap.addReference(neuteringWatchpoint, view->possiblySharedBuffer());
}
void InferredValueAdaptor::add(
CodeBlock* codeBlock, InferredValue* inferredValue, CommonData& common)
{
codeBlock->addConstant(inferredValue); inferredValue->add(common.watchpoints.add(codeBlock));
}
void AdaptiveStructureWatchpointAdaptor::add(
CodeBlock* codeBlock, const ObjectPropertyCondition& key, CommonData& common)
{
VM& vm = *codeBlock->vm();
switch (key.kind()) {
case PropertyCondition::Equivalence:
common.adaptiveInferredPropertyValueWatchpoints.add(key, codeBlock)->install(vm);
break;
default:
common.adaptiveStructureWatchpoints.add(key, codeBlock)->install(vm);
break;
}
}
DesiredWatchpoints::DesiredWatchpoints() { }
DesiredWatchpoints::~DesiredWatchpoints() { }
void DesiredWatchpoints::addLazily(WatchpointSet* set)
{
m_sets.addLazily(set);
}
void DesiredWatchpoints::addLazily(InlineWatchpointSet& set)
{
m_inlineSets.addLazily(&set);
}
void DesiredWatchpoints::addLazily(InferredValue* inferredValue)
{
m_inferredValues.addLazily(inferredValue);
}
void DesiredWatchpoints::addLazily(JSArrayBufferView* view)
{
m_bufferViews.addLazily(view);
}
void DesiredWatchpoints::addLazily(const ObjectPropertyCondition& key)
{
m_adaptiveStructureSets.addLazily(key);
}
bool DesiredWatchpoints::consider(Structure* structure)
{
if (!structure->dfgShouldWatch())
return false;
addLazily(structure->transitionWatchpointSet());
return true;
}
void DesiredWatchpoints::reallyAdd(CodeBlock* codeBlock, CommonData& commonData)
{
m_sets.reallyAdd(codeBlock, commonData);
m_inlineSets.reallyAdd(codeBlock, commonData);
m_inferredValues.reallyAdd(codeBlock, commonData);
m_bufferViews.reallyAdd(codeBlock, commonData);
m_adaptiveStructureSets.reallyAdd(codeBlock, commonData);
}
bool DesiredWatchpoints::areStillValid() const
{
return m_sets.areStillValid()
&& m_inlineSets.areStillValid()
&& m_inferredValues.areStillValid()
&& m_bufferViews.areStillValid()
&& m_adaptiveStructureSets.areStillValid();
}
void DesiredWatchpoints::dumpInContext(PrintStream& out, DumpContext* context) const
{
out.print("Desired watchpoints:\n");
out.print(" Watchpoint sets: ", inContext(m_sets, context), "\n");
out.print(" Inline watchpoint sets: ", inContext(m_inlineSets, context), "\n");
out.print(" Inferred values: ", inContext(m_inferredValues, context), "\n");
out.print(" Buffer views: ", inContext(m_bufferViews, context), "\n");
out.print(" Object property conditions: ", inContext(m_adaptiveStructureSets, context), "\n");
}
} }
#endif // ENABLE(DFG_JIT)