Struct parse_js::symbol::SymbolMap

pub struct SymbolMap<T> { /* private fields */ }

Expand description

Use this to associate additional state with a Symbol, identified by a SymbolId. We prefer this instead of adding an extra generic state field on Symbol, as that would require propagating the generic type everywhere. Use as many of these as desired. To allow for initialisation and referencing without Option, the state value must have a default.

Implementations§

impl<T> SymbolMap<T>

pub fn new<U: Default>(scope_map: &ScopeMap) -> SymbolMap<U>

Trait Implementations§

impl<T> Index<SymbolId> for SymbolMap<T>

type Output = T

The returned type after indexing.

fn index(&self, index: SymbolId) -> &Self::Output

Performs the indexing (container[index]) operation. Read more

impl<T> IndexMut<SymbolId> for SymbolMap<T>

fn index_mut(&mut self, index: SymbolId) -> &mut Self::Output

Performs the mutable indexing (container[index]) operation. Read more

Auto Trait Implementations§

impl<T> RefUnwindSafe for SymbolMap<T>where
T: RefUnwindSafe,

impl<T> Send for SymbolMap<T>where
T: Send,

impl<T> Sync for SymbolMap<T>where
T: Sync,

impl<T> Unpin for SymbolMap<T>where
T: Unpin,

impl<T> UnwindSafe for SymbolMap<T>where
T: UnwindSafe,

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source§

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · 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.

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source§

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

const: unstable · source§

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

Performs the conversion.