[−][src]Struct rusty_v8_m::PropertyCallbackArguments
Methods
impl<'s> PropertyCallbackArguments<'s>
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pub fn this(&self) -> Local<Object>
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Returns the receiver. In many cases, this is the object on which the
property access was intercepted. When using
Reflect.get
, Function.prototype.call
, or similar functions, it is the
object passed in as receiver or thisArg.
void GetterCallback(Local<Name> name,
const v8::PropertyCallbackInfo<v8::Value>& info) {
auto context = info.GetIsolate()->GetCurrentContext();
v8::Local<v8::Value> a_this =
info.This()
->GetRealNamedProperty(context, v8_str("a"))
.ToLocalChecked();
v8::Local<v8::Value> a_holder =
info.Holder()
->GetRealNamedProperty(context, v8_str("a"))
.ToLocalChecked();
CHECK(v8_str("r")->Equals(context, a_this).FromJust());
CHECK(v8_str("obj")->Equals(context, a_holder).FromJust());
info.GetReturnValue().Set(name);
}
v8::Local<v8::FunctionTemplate> templ =
v8::FunctionTemplate::New(isolate);
templ->InstanceTemplate()->SetHandler(
v8::NamedPropertyHandlerConfiguration(GetterCallback));
LocalContext env;
env->Global()
->Set(env.local(), v8_str("obj"), templ->GetFunction(env.local())
.ToLocalChecked()
->NewInstance(env.local())
.ToLocalChecked())
.FromJust();
CompileRun("obj.a = 'obj'; var r = {a: 'r'}; Reflect.get(obj, 'x', r)");
Auto Trait Implementations
impl<'s> RefUnwindSafe for PropertyCallbackArguments<'s>
impl<'s> !Send for PropertyCallbackArguments<'s>
impl<'s> !Sync for PropertyCallbackArguments<'s>
impl<'s> Unpin for PropertyCallbackArguments<'s>
impl<'s> UnwindSafe for PropertyCallbackArguments<'s>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,