Trait ExprVisitor

pub trait ExprVisitor {
    type ExprId: Copy;

    // Required methods
    fn add_const_bool(&mut self, ty: TypeId, val: bool) -> Self::ExprId;
    fn add_const_int(&mut self, ty: TypeId, val: i128) -> Self::ExprId;
    fn add_const_prim(&mut self, ty: TypeId, val: Sym) -> Self::ExprId;
    fn add_create_variant(
        &mut self,
        inputs: Vec<(Self::ExprId, TypeId)>,
        ty: TypeId,
        variant: VariantId,
    ) -> Self::ExprId;
    fn add_construct(
        &mut self,
        inputs: Vec<(Self::ExprId, TypeId)>,
        ty: TypeId,
        term: TermId,
        pure: bool,
        infallible: bool,
        multi: bool,
    ) -> Self::ExprId;
}

Visitor interface for Exprs. Visitors can return an arbitrary identifier for each subexpression, which is threaded through to subsequent calls into the visitor.

Required Associated Types

type ExprId: Copy

The type of subexpression identifiers.

Required Methods

fn add_const_bool(&mut self, ty: TypeId, val: bool) -> Self::ExprId

Construct a constant boolean.

fn add_const_int(&mut self, ty: TypeId, val: i128) -> Self::ExprId

Construct a constant integer.

fn add_const_prim(&mut self, ty: TypeId, val: Sym) -> Self::ExprId

Construct a primitive constant.

fn add_create_variant( &mut self, inputs: Vec<(Self::ExprId, TypeId)>, ty: TypeId, variant: VariantId, ) -> Self::ExprId

Construct an enum variant with the given inputs assigned to the variant’s fields in order.

fn add_construct( &mut self, inputs: Vec<(Self::ExprId, TypeId)>, ty: TypeId, term: TermId, pure: bool, infallible: bool, multi: bool, ) -> Self::ExprId

Call an external constructor with the given inputs as arguments.

Implementors