Struct hir_def::dyn_map::keys::AstPtrPolicy

pub struct AstPtrPolicy<AST, ID> { /* private fields */ }

Expand description

XXX: AST Nodes and SyntaxNodes have identity equality semantics: nodes are equal if they point to exactly the same object.

In general, we do not guarantee that we have exactly one instance of a syntax tree for each file. We probably should add such guarantee, but, for the time being, we will use identity-less AstPtr comparison.

Trait Implementations§

impl<AST: AstNode + 'static, ID: 'static> Policy for AstPtrPolicy<AST, ID>

type K = AstPtr<AST>

type V = ID

fn insert(map: &mut DynMap, key: AstPtr<AST>, value: ID)

fn get<'a>(map: &'a DynMap, key: &AstPtr<AST>) -> Option<&'a ID>

fn is_empty(map: &DynMap) -> bool

Auto Trait Implementations§

impl<AST, ID> Freeze for AstPtrPolicy<AST, ID>

impl<AST, ID> RefUnwindSafe for AstPtrPolicy<AST, ID>
where AST: RefUnwindSafe, ID: RefUnwindSafe,

impl<AST, ID> Send for AstPtrPolicy<AST, ID>
where AST: Send, ID: Send,

impl<AST, ID> Sync for AstPtrPolicy<AST, ID>
where AST: Sync, ID: Sync,

impl<AST, ID> Unpin for AstPtrPolicy<AST, ID>
where AST: Unpin, ID: Unpin,

impl<AST, ID> UnwindSafe for AstPtrPolicy<AST, ID>
where AST: UnwindSafe, ID: UnwindSafe,

Blanket Implementations§

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

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where T: ?Sized,

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Returns the argument unchanged.

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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

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

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where S: Into<Dispatch>,

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