Struct Placeholder 

pub(crate) struct Placeholder {
    pub(crate) ident: Var,
    stand_in_name: String,
    pub(crate) constraints: Vec<Constraint>,
}

Fields

ident: Var

The name of this placeholder. e.g. for “$a”, this would be “a”

stand_in_name: String

A unique name used in place of this placeholder when we parse the pattern as Rust code.

constraints: Vec<Constraint>

Implementations

impl Placeholder

fn new(name: SmolStr, constraints: Vec<Constraint>) -> Self

Trait Implementations

impl Clone for Placeholder

fn clone(&self) -> Placeholder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Placeholder

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

Formats the value using the given formatter.

impl PartialEq for Placeholder

fn eq(&self, other: &Placeholder) -> 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 Eq for Placeholder

impl StructuralPartialEq for Placeholder