Trait Dummy

pub trait Dummy {
    // Required methods
    fn dummy() -> Self;
    fn is_dummy(&self) -> bool;
}

A helper trait with functions for dummy values that pretend to be valid.

Required Methods

fn dummy() -> Self

Create a dummy value pretending to be a valid one.

fn is_dummy(&self) -> bool

Check if this is a dummy value.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Dummy for AnyExpr

impl Dummy for Circle

impl Dummy for Line

impl Dummy for Point

impl Dummy for Unknown

impl Dummy for CircleNode

impl Dummy for EmptyNode

impl Dummy for LineNode

impl Dummy for NoContentNode

impl Dummy for NumberNode

impl Dummy for PCNode

impl Dummy for PointNode

impl Dummy for Derived

impl Dummy for Number

impl Dummy for PointCollection

impl<T: Displayed + Dummy> Dummy for Expr<T>

impl<const DST_NUM: i64, const DST_DENOM: i64, const ANG_NUM: i64, const ANG_DENOM: i64> Dummy for NumberUnit<DST_NUM, DST_DENOM, ANG_NUM, ANG_DENOM>