Struct TypeBound 

pub struct TypeBound {
    pub param_name: String,
    pub constraint: BoundConstraint,
}

A type bound that constrains a type parameter.

Type bounds allow specifying constraints on type parameters, such as:

• T: Comparable - T must be a comparable type
• T: Numeric - T must be a numeric type
• T: Subtypes(Person) - T must be a subtype of Person

Fields

param_name: String

The name of the type parameter being constrained

constraint: BoundConstraint

The constraint kind

Implementations

impl TypeBound

pub fn new(param_name: impl Into<String>, constraint: BoundConstraint) -> Self

Creates a new type bound with the given constraint.

pub fn subtype( param_name: impl Into<String>, supertype: impl Into<String>, ) -> Self

Creates a subtype bound: T: Subtypes(supertype)

pub fn trait_bound( param_name: impl Into<String>, trait_name: impl Into<String>, ) -> Self

Creates a trait bound: T: Trait(trait_name)

pub fn comparable(param_name: impl Into<String>) -> Self

Creates a comparable bound: T: Comparable

pub fn numeric(param_name: impl Into<String>) -> Self

Creates a numeric bound: T: Numeric

Trait Implementations

impl Clone for TypeBound

fn clone(&self) -> TypeBound

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TypeBound

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TypeBound

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for TypeBound

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

Formats the value using the given formatter.

impl PartialEq for TypeBound

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for TypeBound

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for TypeBound

impl StructuralPartialEq for TypeBound