Trait DataObjectConstraint

pub trait DataObjectConstraint:
    Sized
    + Debug
    + Display
    + PartialEq
    + Clone
    + Send
    + Sync {
    type DataArg<'a>: Debug + Display + PartialEq + Clone + Send + Sync;

    // Required method
    fn as_arg(&self) -> Self::DataArg<'_>;
}

Used for statically defining the allowed types stored in DataObjects.

Required Associated Types

type DataArg<'a>: Debug + Display + PartialEq + Clone + Send + Sync

Specifies the type of an argument that provides a value to the DataObject. Generally, this type matches Self except for KanziString.

• KanziString - Uses &KanziStr to avoid unnecessary allocations.

Required Methods

fn as_arg(&self) -> Self::DataArg<'_>

Converts Self to a type accepted by DataObject::set_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.

Implementations on Foreign Types

impl DataObjectConstraint for bool

type DataArg<'a> = bool

fn as_arg(&self) -> <bool as DataObjectConstraint>::DataArg<'_>

impl DataObjectConstraint for f64

type DataArg<'a> = f64

fn as_arg(&self) -> <f64 as DataObjectConstraint>::DataArg<'_>

impl DataObjectConstraint for i32

type DataArg<'a> = i32

fn as_arg(&self) -> <i32 as DataObjectConstraint>::DataArg<'_>

Implementors

impl DataObjectConstraint for KanziString

type DataArg<'a> = &'a KanziStr