本文整理汇总了C++中FrameEntry::isType方法的典型用法代码示例。如果您正苦于以下问题：C++ FrameEntry::isType方法的具体用法？C++ FrameEntry::isType怎么用？C++ FrameEntry::isType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FrameEntry的用法示例。
在下文中一共展示了FrameEntry::isType方法的1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: compileArrayWithLength
CompileStatus
mjit::Compiler::inlineNativeFunction(uint32_t argc, bool callingNew)
{
if (!cx->typeInferenceEnabled())
return Compile_InlineAbort;
if (applyTricks == LazyArgsObj)
return Compile_InlineAbort;
FrameEntry *origCallee = frame.peek(-((int)argc + 2));
FrameEntry *thisValue = frame.peek(-((int)argc + 1));
types::TypeSet *thisTypes = analysis->poppedTypes(PC, argc);
if (!origCallee->isConstant() || !origCallee->isType(JSVAL_TYPE_OBJECT))
return Compile_InlineAbort;
JSObject *callee = &origCallee->getValue().toObject();
if (!callee->isFunction())
return Compile_InlineAbort;
/*
* The callee must have the same parent as the script's global, otherwise
* inference may not have accounted for any side effects correctly.
*/
if (!globalObj || globalObj != &callee->global())
return Compile_InlineAbort;
Native native = callee->toFunction()->maybeNative();
if (!native)
return Compile_InlineAbort;
JSValueType type = knownPushedType(0);
JSValueType thisType = thisValue->isTypeKnown()
? thisValue->getKnownType()
: JSVAL_TYPE_UNKNOWN;
/*
* Note: when adding new natives which operate on properties, add relevant
* constraint generation to the behavior of TypeConstraintCall.
*/
/* Handle natives that can be called either with or without 'new'. */
if (native == js_Array && type == JSVAL_TYPE_OBJECT && globalObj) {
if (argc == 0 || argc == 1)
return compileArrayWithLength(argc);
return compileArrayWithArgs(argc);
}
/* Remaining natives must not be called with 'new'. */
if (callingNew)
return Compile_InlineAbort;
if (native == js::num_parseInt && argc >= 1) {
FrameEntry *arg = frame.peek(-(int32_t)argc);
JSValueType argType = arg->isTypeKnown() ? arg->getKnownType() : JSVAL_TYPE_UNKNOWN;
if ((argType == JSVAL_TYPE_DOUBLE || argType == JSVAL_TYPE_INT32) &&
type == JSVAL_TYPE_INT32) {
return compileParseInt(argType, argc);
}
}
if (argc == 0) {
if ((native == js::array_pop || native == js::array_shift) && thisType == JSVAL_TYPE_OBJECT) {
/*
* Only handle pop/shift on dense arrays which have never been used
* in an iterator --- when popping elements we don't account for
* suppressing deleted properties in active iterators.
*
* Constraints propagating properties directly into the result
* type set are generated by TypeConstraintCall during inference.
*/
if (!thisTypes->hasObjectFlags(cx, types::OBJECT_FLAG_NON_DENSE_ARRAY |
types::OBJECT_FLAG_ITERATED) &&
!types::ArrayPrototypeHasIndexedProperty(cx, outerScript)) {
bool packed = !thisTypes->hasObjectFlags(cx, types::OBJECT_FLAG_NON_PACKED_ARRAY);
return compileArrayPopShift(thisValue, packed, native == js::array_pop);
}
}
} else if (argc == 1) {
FrameEntry *arg = frame.peek(-1);
types::TypeSet *argTypes = frame.extra(arg).types;
if (!argTypes)
return Compile_InlineAbort;
JSValueType argType = arg->isTypeKnown() ? arg->getKnownType() : JSVAL_TYPE_UNKNOWN;
if (native == js_math_abs) {
if (argType == JSVAL_TYPE_INT32 && type == JSVAL_TYPE_INT32)
return compileMathAbsInt(arg);
if (argType == JSVAL_TYPE_DOUBLE && type == JSVAL_TYPE_DOUBLE)
return compileMathAbsDouble(arg);
}
if (native == js_math_floor && argType == JSVAL_TYPE_DOUBLE &&
type == JSVAL_TYPE_INT32) {
return compileRound(arg, Floor);
}
if (native == js_math_round && argType == JSVAL_TYPE_DOUBLE &&
//.........这里部分代码省略.........