本文整理汇总了C++中IonBailoutIterator::isConstructing方法的典型用法代码示例。如果您正苦于以下问题：C++ IonBailoutIterator::isConstructing方法的具体用法？C++ IonBailoutIterator::isConstructing怎么用？C++ IonBailoutIterator::isConstructing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IonBailoutIterator的用法示例。
在下文中一共展示了IonBailoutIterator::isConstructing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: iter
static uint32
ConvertFrames(JSContext *cx, IonActivation *activation, IonBailoutIterator &it)
{
AssertCanGC();
IonSpew(IonSpew_Bailouts, "Bailing out %s:%u, IonScript %p",
it.script()->filename, it.script()->lineno, (void *) it.ionScript());
IonSpew(IonSpew_Bailouts, " reading from snapshot offset %u size %u",
it.snapshotOffset(), it.ionScript()->snapshotsSize());
#ifdef DEBUG
// Use count is reset after invalidation. Log use count on bailouts to
// determine if we have a critical sequence of bailout.
if (it.script()->ion == it.ionScript()) {
IonSpew(IonSpew_Bailouts, " Current script use count is %u",
it.script()->getUseCount());
}
#endif
SnapshotIterator iter(it);
// Set a flag to avoid bailing out on every iteration or function call. Ion can
// compile and run the script again after an invalidation.
it.ionScript()->setBailoutExpected();
// We use OffTheBooks instead of cx because at this time we cannot iterate
// on the stack safely and the reported error attempts to walk the IonMonkey
// frames. We cannot iterate on the stack because we have no exit frame to
// start Ion frames iteratons.
BailoutClosure *br = js_new<BailoutClosure>();
if (!br)
return BAILOUT_RETURN_FATAL_ERROR;
activation->setBailout(br);
StackFrame *fp;
if (it.isEntryJSFrame() && cx->fp()->runningInIon() && activation->entryfp()) {
// Avoid creating duplicate interpreter frames. This is necessary to
// avoid blowing out the interpreter stack, and must be used in
// conjunction with inline-OSR from within bailouts (since each Ion
// activation must be tied to a unique JSStackFrame for StackIter to
// work).
//
// Note: If the entry frame is a placeholder (a stub frame pushed for
// JM -> Ion calls), then we cannot re-use it as it does not have
// enough slots.
JS_ASSERT(cx->fp() == activation->entryfp());
fp = cx->fp();
cx->regs().sp = fp->base();
} else {
br->constructFrame();
if (!cx->stack.pushBailoutArgs(cx, it, br->argsGuard()))
return BAILOUT_RETURN_FATAL_ERROR;
fp = cx->stack.pushBailoutFrame(cx, it, *br->argsGuard(), br->frameGuard());
}
if (!fp)
return BAILOUT_RETURN_OVERRECURSED;
br->setEntryFrame(fp);
JSFunction *callee = it.maybeCallee();
if (callee)
fp->formals()[-2].setObject(*callee);
if (it.isConstructing())
fp->setConstructing();
while (true) {
IonSpew(IonSpew_Bailouts, " restoring frame");
fp->initFromBailout(cx, iter);
if (!iter.moreFrames())
break;
iter.nextFrame();
fp = PushInlinedFrame(cx, fp);
if (!fp)
return BAILOUT_RETURN_OVERRECURSED;
}
jsbytecode *bailoutPc = fp->script()->code + iter.pcOffset();
br->setBailoutPc(bailoutPc);
switch (iter.bailoutKind()) {
case Bailout_Normal:
return BAILOUT_RETURN_OK;
case Bailout_TypeBarrier:
return BAILOUT_RETURN_TYPE_BARRIER;
case Bailout_Monitor:
return BAILOUT_RETURN_MONITOR;
case Bailout_RecompileCheck:
return BAILOUT_RETURN_RECOMPILE_CHECK;
case Bailout_BoundsCheck:
return BAILOUT_RETURN_BOUNDS_CHECK;
case Bailout_Invalidate:
return BAILOUT_RETURN_INVALIDATE;
case Bailout_CachedShapeGuard:
return BAILOUT_RETURN_CACHED_SHAPE_GUARD;
// When bailing out from an argument check, none of the code of the
// function has run yet. When profiling, this means that the function
//.........这里部分代码省略.........