Struct boa_engine::object::builtins::JsGenerator
source · pub struct JsGenerator { /* private fields */ }
Expand description
JsGenerator
provides a wrapper for Boa’s implementation of the ECMAScript Generator
builtin object
Implementations§
source§impl JsGenerator
impl JsGenerator
sourcepub fn from_object(object: JsObject) -> JsResult<Self>
pub fn from_object(object: JsObject) -> JsResult<Self>
Creates a JsGenerator
from a generator JsObject
sourcepub fn next<T>(&self, value: T, context: &mut Context) -> JsResult<JsValue>
pub fn next<T>(&self, value: T, context: &mut Context) -> JsResult<JsValue>
Calls Generator.prototype.next()
This method returns an object with the properties done
and value
Methods from Deref<Target = JsObject>§
sourcepub fn downcast_ref<T: NativeObject>(&self) -> Option<Ref<'_, T>>
pub fn downcast_ref<T: NativeObject>(&self) -> Option<Ref<'_, T>>
Downcasts a reference to the object,
if the object is of type T
.
§Panics
Panics if the object is currently mutably borrowed.
sourcepub fn downcast_mut<T: NativeObject>(
&self
) -> Option<RefMut<'_, ErasedObject, T>>
pub fn downcast_mut<T: NativeObject>( &self ) -> Option<RefMut<'_, ErasedObject, T>>
Downcasts a mutable reference to the object,
if the object is type native object type T
.
§Panics
Panics if the object is currently borrowed.
sourcepub fn is<T: NativeObject>(&self) -> bool
pub fn is<T: NativeObject>(&self) -> bool
Checks if this object is an instance of a certain NativeObject
.
§Panics
Panics if the object is currently mutably borrowed.
sourcepub fn is_ordinary(&self) -> bool
pub fn is_ordinary(&self) -> bool
sourcepub fn to_property_descriptor(
&self,
context: &mut Context
) -> JsResult<PropertyDescriptor>
pub fn to_property_descriptor( &self, context: &mut Context ) -> JsResult<PropertyDescriptor>
sourcepub fn copy_data_properties<K>(
&self,
source: &JsValue,
excluded_keys: Vec<K>,
context: &mut Context
) -> JsResult<()>where
K: Into<PropertyKey>,
pub fn copy_data_properties<K>(
&self,
source: &JsValue,
excluded_keys: Vec<K>,
context: &mut Context
) -> JsResult<()>where
K: Into<PropertyKey>,
sourcepub fn borrow(&self) -> Ref<'_, Object<T>>
pub fn borrow(&self) -> Ref<'_, Object<T>>
Immutably borrows the Object
.
The borrow lasts until the returned Ref
exits scope.
Multiple immutable borrows can be taken out at the same time.
§Panics
Panics if the object is currently mutably borrowed.
sourcepub fn borrow_mut(&self) -> RefMut<'_, Object<T>, Object<T>>
pub fn borrow_mut(&self) -> RefMut<'_, Object<T>, Object<T>>
Mutably borrows the Object.
The borrow lasts until the returned RefMut
exits scope.
The object cannot be borrowed while this borrow is active.
§Panics
Panics if the object is currently borrowed.
sourcepub fn try_borrow(&self) -> StdResult<Ref<'_, Object<T>>, BorrowError>
pub fn try_borrow(&self) -> StdResult<Ref<'_, Object<T>>, BorrowError>
Immutably borrows the Object
, returning an error if the value is currently mutably borrowed.
The borrow lasts until the returned GcCellRef
exits scope.
Multiple immutable borrows can be taken out at the same time.
This is the non-panicking variant of borrow
.
sourcepub fn try_borrow_mut(
&self
) -> StdResult<RefMut<'_, Object<T>, Object<T>>, BorrowMutError>
pub fn try_borrow_mut( &self ) -> StdResult<RefMut<'_, Object<T>, Object<T>>, BorrowMutError>
Mutably borrows the object, returning an error if the value is currently borrowed.
The borrow lasts until the returned GcCellRefMut
exits scope.
The object be borrowed while this borrow is active.
This is the non-panicking variant of borrow_mut
.
sourcepub fn prototype(&self) -> JsPrototype
pub fn prototype(&self) -> JsPrototype
sourcepub fn set_prototype(&self, prototype: JsPrototype) -> bool
pub fn set_prototype(&self, prototype: JsPrototype) -> bool
sourcepub fn insert_property<K, P>(&self, key: K, property: P) -> bool
pub fn insert_property<K, P>(&self, key: K, property: P) -> bool
Inserts a field in the object properties
without checking if it’s writable.
If a field was already in the object with the same name, than true
is returned
with that field, otherwise false
is returned.
sourcepub fn is_callable(&self) -> bool
pub fn is_callable(&self) -> bool
It determines if Object is a callable function with a [[Call]]
internal method.
More information:
sourcepub fn is_constructor(&self) -> bool
pub fn is_constructor(&self) -> bool
It determines if Object is a function object with a [[Construct]]
internal method.
More information:
sourcepub fn is_extensible(&self, context: &mut Context) -> JsResult<bool>
pub fn is_extensible(&self, context: &mut Context) -> JsResult<bool>
sourcepub fn get<K>(&self, key: K, context: &mut Context) -> JsResult<JsValue>where
K: Into<PropertyKey>,
pub fn get<K>(&self, key: K, context: &mut Context) -> JsResult<JsValue>where
K: Into<PropertyKey>,
sourcepub fn set<K, V>(
&self,
key: K,
value: V,
throw: bool,
context: &mut Context
) -> JsResult<bool>
pub fn set<K, V>( &self, key: K, value: V, throw: bool, context: &mut Context ) -> JsResult<bool>
sourcepub fn create_data_property<K, V>(
&self,
key: K,
value: V,
context: &mut Context
) -> JsResult<bool>
pub fn create_data_property<K, V>( &self, key: K, value: V, context: &mut Context ) -> JsResult<bool>
sourcepub fn create_data_property_or_throw<K, V>(
&self,
key: K,
value: V,
context: &mut Context
) -> JsResult<bool>
pub fn create_data_property_or_throw<K, V>( &self, key: K, value: V, context: &mut Context ) -> JsResult<bool>
sourcepub fn define_property_or_throw<K, P>(
&self,
key: K,
desc: P,
context: &mut Context
) -> JsResult<bool>
pub fn define_property_or_throw<K, P>( &self, key: K, desc: P, context: &mut Context ) -> JsResult<bool>
sourcepub fn delete_property_or_throw<K>(
&self,
key: K,
context: &mut Context
) -> JsResult<bool>where
K: Into<PropertyKey>,
pub fn delete_property_or_throw<K>(
&self,
key: K,
context: &mut Context
) -> JsResult<bool>where
K: Into<PropertyKey>,
Defines the property or throws a TypeError
if the operation fails.
More information:
sourcepub fn has_property<K>(&self, key: K, context: &mut Context) -> JsResult<bool>where
K: Into<PropertyKey>,
pub fn has_property<K>(&self, key: K, context: &mut Context) -> JsResult<bool>where
K: Into<PropertyKey>,
sourcepub fn has_own_property<K>(
&self,
key: K,
context: &mut Context
) -> JsResult<bool>where
K: Into<PropertyKey>,
pub fn has_own_property<K>(
&self,
key: K,
context: &mut Context
) -> JsResult<bool>where
K: Into<PropertyKey>,
sourcepub fn call(
&self,
this: &JsValue,
args: &[JsValue],
context: &mut Context
) -> JsResult<JsValue>
pub fn call( &self, this: &JsValue, args: &[JsValue], context: &mut Context ) -> JsResult<JsValue>
Call ( F, V [ , argumentsList ] )
§Panics
Panics if the object is currently mutably borrowed.
More information:
sourcepub fn construct(
&self,
args: &[JsValue],
new_target: Option<&Self>,
context: &mut Context
) -> JsResult<Self>
pub fn construct( &self, args: &[JsValue], new_target: Option<&Self>, context: &mut Context ) -> JsResult<Self>
Construct ( F [ , argumentsList [ , newTarget ] ] )
Construct an instance of this object with the specified arguments.
§Panics
Panics if the object is currently mutably borrowed.
More information:
sourcepub fn set_integrity_level(
&self,
level: IntegrityLevel,
context: &mut Context
) -> JsResult<bool>
pub fn set_integrity_level( &self, level: IntegrityLevel, context: &mut Context ) -> JsResult<bool>
sourcepub fn test_integrity_level(
&self,
level: IntegrityLevel,
context: &mut Context
) -> JsResult<bool>
pub fn test_integrity_level( &self, level: IntegrityLevel, context: &mut Context ) -> JsResult<bool>
Trait Implementations§
source§impl Clone for JsGenerator
impl Clone for JsGenerator
source§fn clone(&self) -> JsGenerator
fn clone(&self) -> JsGenerator
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for JsGenerator
impl Debug for JsGenerator
source§impl Deref for JsGenerator
impl Deref for JsGenerator
source§impl Drop for JsGenerator
impl Drop for JsGenerator
source§impl From<JsGenerator> for JsObject
impl From<JsGenerator> for JsObject
source§fn from(o: JsGenerator) -> Self
fn from(o: JsGenerator) -> Self
source§impl From<JsGenerator> for JsValue
impl From<JsGenerator> for JsValue
source§fn from(o: JsGenerator) -> Self
fn from(o: JsGenerator) -> Self
source§impl Trace for JsGenerator
impl Trace for JsGenerator
source§unsafe fn trace_non_roots(&self)
unsafe fn trace_non_roots(&self)
source§fn run_finalizer(&self)
fn run_finalizer(&self)
Finalize::finalize
on this object and all
contained subobjects.source§impl TryFromJs for JsGenerator
impl TryFromJs for JsGenerator
Auto Trait Implementations§
impl !RefUnwindSafe for JsGenerator
impl !Send for JsGenerator
impl !Sync for JsGenerator
impl Unpin for JsGenerator
impl !UnwindSafe for JsGenerator
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> Pipe for Twhere
T: ?Sized,
impl<T> Pipe for Twhere
T: ?Sized,
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Self: Sized,
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere
Self: Sized,
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R: 'a,
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R: 'a,
self
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&'a mut self,
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