Struct boa_engine::object::builtins::JsArray
source · pub struct JsArray { /* private fields */ }
Expand description
JsArray
provides a wrapper for Boa’s implementation of the JavaScript Array
object.
Implementations§
source§impl JsArray
impl JsArray
sourcepub fn from_iter<I>(elements: I, context: &mut Context) -> Selfwhere
I: IntoIterator<Item = JsValue>,
pub fn from_iter<I>(elements: I, context: &mut Context) -> Selfwhere
I: IntoIterator<Item = JsValue>,
Create an array from a IntoIterator<Item = JsValue>
convertible object.
sourcepub fn from_object(object: JsObject) -> JsResult<Self>
pub fn from_object(object: JsObject) -> JsResult<Self>
sourcepub fn length(&self, context: &mut Context) -> JsResult<u64>
pub fn length(&self, context: &mut Context) -> JsResult<u64>
Get the length of the array.
Same as array.length
in JavaScript.
sourcepub fn is_empty(&self, context: &mut Context) -> JsResult<bool>
pub fn is_empty(&self, context: &mut Context) -> JsResult<bool>
Check if the array is empty, i.e. the length
is zero.
sourcepub fn push<T>(&self, value: T, context: &mut Context) -> JsResult<JsValue>
pub fn push<T>(&self, value: T, context: &mut Context) -> JsResult<JsValue>
Push an element to the array.
sourcepub fn push_items(
&self,
items: &[JsValue],
context: &mut Context
) -> JsResult<JsValue>
pub fn push_items( &self, items: &[JsValue], context: &mut Context ) -> JsResult<JsValue>
Pushes a slice of elements to the array.
sourcepub fn at<T>(&self, index: T, context: &mut Context) -> JsResult<JsValue>
pub fn at<T>(&self, index: T, context: &mut Context) -> JsResult<JsValue>
Calls Array.prototype.at()
.
sourcepub fn unshift(
&self,
items: &[JsValue],
context: &mut Context
) -> JsResult<JsValue>
pub fn unshift( &self, items: &[JsValue], context: &mut Context ) -> JsResult<JsValue>
Calls Array.prototype.unshift()
.
sourcepub fn reverse(&self, context: &mut Context) -> JsResult<Self>
pub fn reverse(&self, context: &mut Context) -> JsResult<Self>
Calls Array.prototype.reverse()
.
sourcepub fn concat(&self, items: &[JsValue], context: &mut Context) -> JsResult<Self>
pub fn concat(&self, items: &[JsValue], context: &mut Context) -> JsResult<Self>
Calls Array.prototype.concat()
.
sourcepub fn join(
&self,
separator: Option<JsString>,
context: &mut Context
) -> JsResult<JsString>
pub fn join( &self, separator: Option<JsString>, context: &mut Context ) -> JsResult<JsString>
Calls Array.prototype.join()
.
sourcepub fn fill<T>(
&self,
value: T,
start: Option<u32>,
end: Option<u32>,
context: &mut Context
) -> JsResult<Self>
pub fn fill<T>( &self, value: T, start: Option<u32>, end: Option<u32>, context: &mut Context ) -> JsResult<Self>
Calls Array.prototype.fill()
.
sourcepub fn index_of<T>(
&self,
search_element: T,
from_index: Option<u32>,
context: &mut Context
) -> JsResult<Option<u32>>
pub fn index_of<T>( &self, search_element: T, from_index: Option<u32>, context: &mut Context ) -> JsResult<Option<u32>>
Calls Array.prototype.indexOf()
.
sourcepub fn last_index_of<T>(
&self,
search_element: T,
from_index: Option<u32>,
context: &mut Context
) -> JsResult<Option<u32>>
pub fn last_index_of<T>( &self, search_element: T, from_index: Option<u32>, context: &mut Context ) -> JsResult<Option<u32>>
Calls Array.prototype.lastIndexOf()
.
sourcepub fn find(
&self,
predicate: JsFunction,
this_arg: Option<JsValue>,
context: &mut Context
) -> JsResult<JsValue>
pub fn find( &self, predicate: JsFunction, this_arg: Option<JsValue>, context: &mut Context ) -> JsResult<JsValue>
Calls Array.prototype.find()
.
sourcepub fn filter(
&self,
callback: JsFunction,
this_arg: Option<JsValue>,
context: &mut Context
) -> JsResult<Self>
pub fn filter( &self, callback: JsFunction, this_arg: Option<JsValue>, context: &mut Context ) -> JsResult<Self>
Calls Array.prototype.filter()
.
sourcepub fn map(
&self,
callback: JsFunction,
this_arg: Option<JsValue>,
context: &mut Context
) -> JsResult<Self>
pub fn map( &self, callback: JsFunction, this_arg: Option<JsValue>, context: &mut Context ) -> JsResult<Self>
Calls Array.prototype.map()
.
sourcepub fn every(
&self,
callback: JsFunction,
this_arg: Option<JsValue>,
context: &mut Context
) -> JsResult<bool>
pub fn every( &self, callback: JsFunction, this_arg: Option<JsValue>, context: &mut Context ) -> JsResult<bool>
Calls Array.prototype.every()
.
sourcepub fn some(
&self,
callback: JsFunction,
this_arg: Option<JsValue>,
context: &mut Context
) -> JsResult<bool>
pub fn some( &self, callback: JsFunction, this_arg: Option<JsValue>, context: &mut Context ) -> JsResult<bool>
Calls Array.prototype.some()
.
sourcepub fn sort(
&self,
compare_fn: Option<JsFunction>,
context: &mut Context
) -> JsResult<Self>
pub fn sort( &self, compare_fn: Option<JsFunction>, context: &mut Context ) -> JsResult<Self>
Calls Array.prototype.sort()
.
sourcepub fn slice(
&self,
start: Option<u32>,
end: Option<u32>,
context: &mut Context
) -> JsResult<Self>
pub fn slice( &self, start: Option<u32>, end: Option<u32>, context: &mut Context ) -> JsResult<Self>
Calls Array.prototype.slice()
.
sourcepub fn reduce(
&self,
callback: JsFunction,
initial_value: Option<JsValue>,
context: &mut Context
) -> JsResult<JsValue>
pub fn reduce( &self, callback: JsFunction, initial_value: Option<JsValue>, context: &mut Context ) -> JsResult<JsValue>
Calls Array.prototype.reduce()
.
sourcepub fn reduce_right(
&self,
callback: JsFunction,
initial_value: Option<JsValue>,
context: &mut Context
) -> JsResult<JsValue>
pub fn reduce_right( &self, callback: JsFunction, initial_value: Option<JsValue>, context: &mut Context ) -> JsResult<JsValue>
Calls Array.prototype.reduceRight()
.
sourcepub fn to_reversed(&self, context: &mut Context) -> JsResult<Self>
pub fn to_reversed(&self, context: &mut Context) -> JsResult<Self>
Calls Array.prototype.toReversed
.
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 Trace for JsArray
impl Trace for JsArray
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.Auto Trait Implementations§
impl !RefUnwindSafe for JsArray
impl !Send for JsArray
impl !Sync for JsArray
impl Unpin for JsArray
impl !UnwindSafe for JsArray
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,
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere
R: 'a,
self
and passes that borrow into the pipe function. Read moresource§fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere
R: 'a,
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&'a mut self,
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, then passes self.as_ref()
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