pub struct Substitution { /* private fields */ }Expand description
Implementations§
Source§impl Substitution
impl Substitution
Sourcepub fn lookup(&self, id: TypeVarId) -> Type
pub fn lookup(&self, id: TypeVarId) -> Type
Look up a type variable, following chains of variable bindings until a concrete type or an unbound variable is reached (path compression is applied eagerly for direct variable-to-variable chains).
Sourcepub fn bind(&mut self, id: TypeVarId, ty: Type)
pub fn bind(&mut self, id: TypeVarId, ty: Type)
Bind a type variable to a type.
Panics in debug builds if id is already bound (callers should check
via lookup before binding).
Sourcepub fn apply(&self, ty: &Type) -> Type
pub fn apply(&self, ty: &Type) -> Type
Apply this substitution to a type, recursively replacing all type variables that are bound.
Sourcepub fn is_unbound(&self, id: TypeVarId) -> bool
pub fn is_unbound(&self, id: TypeVarId) -> bool
Returns true if the type variable id is unbound in this substitution.
Trait Implementations§
Source§impl Clone for Substitution
impl Clone for Substitution
Source§fn clone(&self) -> Substitution
fn clone(&self) -> Substitution
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moreSource§impl Debug for Substitution
impl Debug for Substitution
Source§impl Default for Substitution
impl Default for Substitution
Source§fn default() -> Substitution
fn default() -> Substitution
Auto Trait Implementations§
impl Freeze for Substitution
impl RefUnwindSafe for Substitution
impl Send for Substitution
impl Sync for Substitution
impl Unpin for Substitution
impl UnsafeUnpin for Substitution
impl UnwindSafe for Substitution
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