C++ (Cpp) ICStub::toCall_Scripted示例

JSObject *
BaselineInspector::getTemplateObject(jsbytecode *pc)
{
    if (!hasBaselineScript())
        return nullptr;

    const ICEntry &entry = icEntryFromPC(pc);
    for (ICStub *stub = entry.firstStub(); stub; stub = stub->next()) {
        switch (stub->kind()) {
          case ICStub::NewArray_Fallback:
            return stub->toNewArray_Fallback()->templateObject();
          case ICStub::NewObject_Fallback:
            return stub->toNewObject_Fallback()->templateObject();
          case ICStub::Rest_Fallback:
            return stub->toRest_Fallback()->templateObject();
          case ICStub::Call_Scripted:
            if (JSObject *obj = stub->toCall_Scripted()->templateObject())
                return obj;
            break;
          default:
            break;
        }
    }

    return nullptr;
}

示例#2

显示文件

JSFunction*
BaselineInspector::getSingleCallee(jsbytecode* pc)
{
    MOZ_ASSERT(*pc == JSOP_NEW);

    if (!hasBaselineScript())
        return nullptr;

    const ICEntry& entry = icEntryFromPC(pc);
    ICStub* stub = entry.firstStub();

    if (entry.fallbackStub()->toCall_Fallback()->hadUnoptimizableCall())
        return nullptr;

    if (!stub->isCall_Scripted() || stub->next() != entry.fallbackStub())
        return nullptr;

    return stub->toCall_Scripted()->callee();
}

示例#3

显示文件

文件： BaselineInspector.cpp 项目： servo/mozjs

JSFunction* BaselineInspector::getSingleCallee(jsbytecode* pc) {
  MOZ_ASSERT(*pc == JSOP_NEW);

  if (!hasICScript()) {
    return nullptr;
  }

  const ICEntry& entry = icEntryFromPC(pc);
  ICStub* stub = entry.firstStub();

  if (entry.fallbackStub()->state().hasFailures()) {
    return nullptr;
  }

  if (!stub->isCall_Scripted() || stub->next() != entry.fallbackStub()) {
    return nullptr;
  }

  return stub->toCall_Scripted()->callee();
}