本文整理汇总了C++中StackTypeSet::hasType方法的典型用法代码示例。如果您正苦于以下问题：C++ StackTypeSet::hasType方法的具体用法？C++ StackTypeSet::hasType怎么用？C++ StackTypeSet::hasType使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类StackTypeSet的用法示例。
在下文中一共展示了StackTypeSet::hasType方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: propertyRead
bool
TypeInferenceOracle::elementReadIsTypedArray(RawScript script, jsbytecode *pc, int *arrayType)
{
// Check whether the object is a typed array and index is int32 or double.
StackTypeSet *obj = script->analysis()->poppedTypes(pc, 1);
StackTypeSet *id = script->analysis()->poppedTypes(pc, 0);
JSValueType idType = id->getKnownTypeTag();
if (idType != JSVAL_TYPE_INT32 && idType != JSVAL_TYPE_DOUBLE)
return false;
if (obj->hasType(types::Type::StringType()))
return false;
*arrayType = obj->getTypedArrayType();
if (*arrayType == TypedArray::TYPE_MAX)
return false;
JS_ASSERT(*arrayType >= 0 && *arrayType < TypedArray::TYPE_MAX);
// Unlike dense arrays, the types of elements in typed arrays are not
// guaranteed to be present in the object's type, and we need to use
// knowledge about the possible contents of the array vs. the types
// that have been read out of it to figure out how to do the load.
types::TypeSet *result = propertyRead(script, pc);
if (*arrayType == TypedArray::TYPE_FLOAT32 || *arrayType == TypedArray::TYPE_FLOAT64) {
if (!result->hasType(types::Type::DoubleType()))
return false;
} else {
if (!result->hasType(types::Type::Int32Type()))
return false;
}
return true;
}示例2:
bool
TypeInferenceOracle::elementReadIsDenseNative(RawScript script, jsbytecode *pc)
{
// Check whether the object is a dense array and index is int32 or double.
StackTypeSet *obj = script->analysis()->poppedTypes(pc, 1);
StackTypeSet *id = script->analysis()->poppedTypes(pc, 0);
JSValueType idType = id->getKnownTypeTag();
if (idType != JSVAL_TYPE_INT32 && idType != JSVAL_TYPE_DOUBLE)
return false;
if (obj->hasType(types::Type::StringType()))
return false;
Class *clasp = obj->getKnownClass();
return clasp && clasp->isNative();
}