Unifier

Struct Unifier 

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

Unification engine with constraint solving

Implementations§

Source§

impl Unifier

Source

pub fn new() -> Self

Create a new unifier

Source

pub fn add_constraint(&mut self, constraint: Constraint)

Add a constraint to the queue

Source

pub fn unify(&mut self, t1: TermId, t2: TermId)

Unify two terms

Source

pub fn declare_mvar(&mut self, mvar: MetaVarId, ty: TermId)

Declare a metavariable with its type

Source

pub fn solve( &mut self, arena: &mut Arena, env: &Environment, ctx: &Context, ) -> Result<()>

Solve all pending constraints

Source

pub fn substitution(&self) -> &Substitution

Get the current substitution

Source

pub fn is_solved(&self) -> bool

Check if all constraints are solved

Source

pub fn num_constraints(&self) -> usize

Get the number of pending constraints

Trait Implementations§

Source§

impl Default for Unifier

Source§

fn default() -> Self

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> 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, 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.