本文整理汇总了C++中JSValue::toPropertyKey方法的典型用法代码示例。如果您正苦于以下问题：C++ JSValue::toPropertyKey方法的具体用法？C++ JSValue::toPropertyKey怎么用？C++ JSValue::toPropertyKey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JSValue的用法示例。
在下文中一共展示了JSValue::toPropertyKey方法的5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: tracer
ALWAYS_INLINE static void JIT_OPERATION operationPutByValInternal(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue)
{
VM* vm = &exec->vm();
NativeCallFrameTracer tracer(vm, exec);
JSValue baseValue = JSValue::decode(encodedBase);
JSValue property = JSValue::decode(encodedProperty);
JSValue value = JSValue::decode(encodedValue);
if (LIKELY(property.isUInt32())) {
putByVal<strict, direct>(exec, baseValue, property.asUInt32(), value);
return;
}
if (property.isDouble()) {
double propertyAsDouble = property.asDouble();
uint32_t propertyAsUInt32 = static_cast<uint32_t>(propertyAsDouble);
if (propertyAsDouble == propertyAsUInt32) {
putByVal<strict, direct>(exec, baseValue, propertyAsUInt32, value);
return;
}
}
// Don't put to an object if toString throws an exception.
PropertyName propertyName = property.toPropertyKey(exec);
if (!vm->exception()) {
PutPropertySlot slot(baseValue, strict);
if (direct) {
RELEASE_ASSERT(baseValue.isObject());
asObject(baseValue)->putDirect(*vm, propertyName, value, slot);
} else
baseValue.put(exec, propertyName, value, slot);
}
}示例2: operationGetByValCell
EncodedJSValue JIT_OPERATION operationGetByValCell(ExecState* exec, JSCell* base, EncodedJSValue encodedProperty)
{
VM& vm = exec->vm();
NativeCallFrameTracer tracer(&vm, exec);
JSValue property = JSValue::decode(encodedProperty);
if (property.isUInt32())
return getByVal(exec, base, property.asUInt32());
if (property.isDouble()) {
double propertyAsDouble = property.asDouble();
uint32_t propertyAsUInt32 = static_cast<uint32_t>(propertyAsDouble);
if (propertyAsUInt32 == propertyAsDouble)
return getByVal(exec, base, propertyAsUInt32);
} else if (property.isString()) {
Structure& structure = *base->structure(vm);
if (JSCell::canUseFastGetOwnProperty(structure)) {
if (AtomicStringImpl* existingAtomicString = asString(property)->toExistingAtomicString(exec)) {
if (JSValue result = base->fastGetOwnProperty(vm, structure, existingAtomicString))
return JSValue::encode(result);
}
}
}
PropertyName propertyName = property.toPropertyKey(exec);
return JSValue::encode(JSValue(base).get(exec, propertyName));
}示例3: tracer
ALWAYS_INLINE static void JIT_OPERATION operationPutByValInternal(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty, EncodedJSValue encodedValue)
{
VM* vm = &exec->vm();
NativeCallFrameTracer tracer(vm, exec);
JSValue baseValue = JSValue::decode(encodedBase);
JSValue property = JSValue::decode(encodedProperty);
JSValue value = JSValue::decode(encodedValue);
if (LIKELY(property.isUInt32())) {
// Despite its name, JSValue::isUInt32 will return true only for positive boxed int32_t; all those values are valid array indices.
ASSERT(isIndex(property.asUInt32()));
putByVal<strict, direct>(exec, baseValue, property.asUInt32(), value);
return;
}
if (property.isDouble()) {
double propertyAsDouble = property.asDouble();
uint32_t propertyAsUInt32 = static_cast<uint32_t>(propertyAsDouble);
if (propertyAsDouble == propertyAsUInt32 && isIndex(propertyAsUInt32)) {
putByVal<strict, direct>(exec, baseValue, propertyAsUInt32, value);
return;
}
}
// Don't put to an object if toString throws an exception.
auto propertyName = property.toPropertyKey(exec);
if (vm->exception())
return;
PutPropertySlot slot(baseValue, strict);
if (direct) {
RELEASE_ASSERT(baseValue.isObject());
if (Optional<uint32_t> index = parseIndex(propertyName))
asObject(baseValue)->putDirectIndex(exec, index.value(), value, 0, strict ? PutDirectIndexShouldThrow : PutDirectIndexShouldNotThrow);
else
asObject(baseValue)->putDirect(*vm, propertyName, value, slot);
} else
baseValue.put(exec, propertyName, value, slot);
}示例4: operationGetByVal
EncodedJSValue JIT_OPERATION operationGetByVal(ExecState* exec, EncodedJSValue encodedBase, EncodedJSValue encodedProperty)
{
VM& vm = exec->vm();
NativeCallFrameTracer tracer(&vm, exec);
JSValue baseValue = JSValue::decode(encodedBase);
JSValue property = JSValue::decode(encodedProperty);
if (LIKELY(baseValue.isCell())) {
JSCell* base = baseValue.asCell();
if (property.isUInt32()) {
return getByVal(exec, base, property.asUInt32());
} else if (property.isDouble()) {
double propertyAsDouble = property.asDouble();
uint32_t propertyAsUInt32 = static_cast<uint32_t>(propertyAsDouble);
if (propertyAsUInt32 == propertyAsDouble && isIndex(propertyAsUInt32))
return getByVal(exec, base, propertyAsUInt32);
} else if (property.isString()) {
Structure& structure = *base->structure(vm);
if (JSCell::canUseFastGetOwnProperty(structure)) {
if (AtomicStringImpl* existingAtomicString = asString(property)->toExistingAtomicString(exec)) {
if (JSValue result = base->fastGetOwnProperty(vm, structure, existingAtomicString))
return JSValue::encode(result);
}
}
}
}
baseValue.requireObjectCoercible(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
auto propertyName = property.toPropertyKey(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
return JSValue::encode(baseValue.get(exec, propertyName));
}示例5: printableModuleKey
static String printableModuleKey(ExecState* exec, JSValue key)
{
if (key.isString() || key.isSymbol())
return key.toPropertyKey(exec).impl();
return exec->propertyNames().emptyIdentifier.impl();
}