Struct ContextBuilder

Source
pub struct ContextBuilder { /* private fields */ }
Expand description

Builder for the Context type.

This builder allows custom initialization of the Interner within the context.

Implementations§

Source§

impl ContextBuilder

Source

pub fn new() -> Self

Creates a new ContextBuilder with a default empty Interner and a default BoaProvider if the intl feature is enabled.

Source

pub fn interner(self, interner: Interner) -> Self

Initializes the context Interner to the provided interner.

This is useful when you want to initialize an Interner with a collection of words before parsing.

Source

pub fn icu_buffer_provider<T: BufferProvider + 'static>( self, provider: T, ) -> Result<Self, IcuError>

Provides a BufferProvider data provider to the Context.

This function is only available if the intl feature is enabled.

§Additional considerations

If the data was generated using icu_datagen, make sure that the deduplication strategy is not set to Maximal. Otherwise, icu_datagen will delete base locales such as “en” from the list of supported locales if the required data for “en” is the same as “und”. We recommend RetainBaseLanguages as a nice default, which will only deduplicate locales if the deduplication target is not “und”.

§Errors

This returns Err if the provided provider doesn’t have the required locale information to construct both a LocaleCanonicalizer and a LocaleExpander. Note that this doesn’t mean that the provider will successfully construct all Intl services; that check is made until the creation of an instance of a service.

Source

pub fn icu_any_provider<T: AnyProvider + 'static>( self, provider: T, ) -> Result<Self, IcuError>

Provides an AnyProvider data provider to the Context.

This function is only available if the intl feature is enabled.

§Additional considerations

If the data was generated using icu_datagen, make sure that the deduplication strategy is not set to Maximal. Otherwise, icu_datagen will delete base locales such as “en” from the list of supported locales if the required data for “en” is the same as “und”. We recommend RetainBaseLanguages as a nice default, which will only deduplicate locales if the deduplication target is not “und”.

§Errors

This returns Err if the provided provider doesn’t have the required locale information to construct both a LocaleCanonicalizer and a LocaleExpander. Note that this doesn’t mean that the provider will successfully construct all Intl services; that check is made until the creation of an instance of a service.

Source

pub fn host_hooks<H: HostHooks + 'static>(self, host_hooks: &'static H) -> Self

Initializes the HostHooks for the context.

Source

pub fn job_queue<Q: JobQueue + 'static>(self, job_queue: Rc<Q>) -> Self

Initializes the JobQueue for the context.

Source

pub fn module_loader<M: ModuleLoader + 'static>( self, module_loader: Rc<M>, ) -> Self

Initializes the ModuleLoader for the context.

Source

pub const fn can_block(self, can_block: bool) -> Self

AgentCanSuspend ( ) aka [[CanBlock]]

Defines if this context can be suspended by calls to the Atomics.wait function.

§Note

By the specification, multiple agents cannot share the same thread if any of them has its [[CanBlock]] field set to true. The builder will verify at build time that all contexts on the current thread fulfill this requisite.

Source

pub const fn instructions_remaining(self, instructions_remaining: usize) -> Self

Specifies the number of instructions remaining to the Context.

This function is only available if the fuzz feature is enabled.

Source

pub fn build(self) -> JsResult<Context>

Builds a new Context with the provided parameters, and defaults all missing parameters to their default values.

Trait Implementations§

Source§

impl Debug for ContextBuilder

Source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
Source§

impl Default for ContextBuilder

Source§

fn default() -> ContextBuilder

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> Conv for T

Source§

fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
Source§

impl<T> Filterable for T

Source§

fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> IntoEither for T

Source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

impl<T> Pipe for T
where T: ?Sized,

Source§

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
where Self: Sized,

Pipes by value. This is generally the method you want to use. Read more
Source§

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R
where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
Source§

fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R
where R: 'a,

Mutably borrows self and passes that borrow into the pipe function. Read more
Source§

fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

Borrows self, then passes self.borrow() into the pipe function. Read more
Source§

fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.borrow_mut() into the pipe function. Read more
Source§

fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

Borrows self, then passes self.as_ref() into the pipe function.
Source§

fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.as_mut() into the pipe function.
Source§

fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
Source§

fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
Source§

impl<T> Tap for T

Source§

fn tap(self, func: impl FnOnce(&Self)) -> Self

Immutable access to a value. Read more
Source§

fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

Mutable access to a value. Read more
Source§

fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Immutable access to the Borrow<B> of a value. Read more
Source§

fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Mutable access to the BorrowMut<B> of a value. Read more
Source§

fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Immutable access to the AsRef<R> view of a value. Read more
Source§

fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
Source§

fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Immutable access to the Deref::Target of a value. Read more
Source§

fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Mutable access to the Deref::Target of a value. Read more
Source§

fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

Calls .tap() only in debug builds, and is erased in release builds.
Source§

fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

Calls .tap_mut() only in debug builds, and is erased in release builds.
Source§

fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
Source§

fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
Source§

fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
Source§

fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
Source§

fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
Source§

fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
Source§

impl<T> TryConv for T

Source§

fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

Source§

fn vzip(self) -> V

Source§

impl<T> ErasedDestructor for T
where T: 'static,