Struct bevy::reflect::utility::NonGenericTypeInfoCell

pub struct NonGenericTypeInfoCell(_);

A container for TypeInfo over non-generic types, allowing instances to be stored statically.

This is specifically meant for use with non-generic types. If your type is generic, then use GenericTypeInfoCell instead. Otherwise, it will not take into account all monomorphizations of your type.

Example

use bevy_reflect::utility::NonGenericTypeInfoCell;

struct Foo {
  bar: i32
}

impl Typed for Foo {
  fn type_info() -> &'static TypeInfo {
    static CELL: NonGenericTypeInfoCell = NonGenericTypeInfoCell::new();
    CELL.get_or_set(|| {
      let fields = [NamedField::new::<i32>("bar")];
      let info = StructInfo::new::<Self>("Foo", &fields);
      TypeInfo::Struct(info)
    })
  }
}

Implementations

impl NonGenericTypeInfoCell

pub const fn new() -> NonGenericTypeInfoCell

Initialize a NonGenericTypeInfoCell for non-generic types.

pub fn get_or_set<F>(&self, f: F) -> &TypeInfowhere
    F: FnOnce() -> TypeInfo,

Returns a reference to the TypeInfo stored in the cell.

If there is no TypeInfo found, a new one will be generated from the given function.