Struct Predicate 

pub struct Predicate {
    pub class: QualName,
    pub tpe: Type,
}

A class required of a type: Eq Int, Comparable a.

What a constrained name asks of its caller, once the variable its constraint was written on has been replaced by the type it was used at. A class is always over a complete type (DEC-2 decision 5), so a predicate is a class and a type and never a partial application.

Fields

class: QualName

The class, named by the package and module that declared it.

tpe: Type

The type it is required of.

Trait Implementations

impl Clone for Predicate

fn clone(&self) -> Predicate

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Predicate

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Predicate

impl Hash for Predicate

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Predicate

fn eq(&self, other: &Predicate) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Predicate