pub trait TupleStruct: PartialReflect {
// Required methods
fn field(&self, index: usize) -> Option<&(dyn PartialReflect + 'static)>;
fn field_mut(
&mut self,
index: usize,
) -> Option<&mut (dyn PartialReflect + 'static)>;
fn field_len(&self) -> usize;
fn iter_fields(&self) -> TupleStructFieldIter<'_>;
// Provided methods
fn to_dynamic_tuple_struct(&self) -> DynamicTupleStruct { ... }
fn get_represented_tuple_struct_info(
&self,
) -> Option<&'static TupleStructInfo> { ... }
}Expand description
A trait used to power tuple struct-like operations via reflection.
This trait uses the Reflect trait to allow implementors to have their fields
be dynamically addressed by index.
When using #[derive(Reflect)] on a tuple struct,
this trait will be automatically implemented.
§Example
use bevy_reflect::{PartialReflect, Reflect, TupleStruct};
#[derive(Reflect)]
struct Foo(u32);
let foo = Foo(123);
assert_eq!(foo.field_len(), 1);
let field: &dyn PartialReflect = foo.field(0).unwrap();
assert_eq!(field.try_downcast_ref::<u32>(), Some(&123));Required Methods§
Sourcefn field(&self, index: usize) -> Option<&(dyn PartialReflect + 'static)>
fn field(&self, index: usize) -> Option<&(dyn PartialReflect + 'static)>
Returns a reference to the value of the field with index index as a
&dyn Reflect.
Sourcefn field_mut(
&mut self,
index: usize,
) -> Option<&mut (dyn PartialReflect + 'static)>
fn field_mut( &mut self, index: usize, ) -> Option<&mut (dyn PartialReflect + 'static)>
Returns a mutable reference to the value of the field with index index
as a &mut dyn Reflect.
Sourcefn iter_fields(&self) -> TupleStructFieldIter<'_>
fn iter_fields(&self) -> TupleStructFieldIter<'_>
Returns an iterator over the values of the tuple struct’s fields.
Provided Methods§
Sourcefn to_dynamic_tuple_struct(&self) -> DynamicTupleStruct
fn to_dynamic_tuple_struct(&self) -> DynamicTupleStruct
Creates a new DynamicTupleStruct from this tuple struct.
Sourcefn get_represented_tuple_struct_info(&self) -> Option<&'static TupleStructInfo>
fn get_represented_tuple_struct_info(&self) -> Option<&'static TupleStructInfo>
Will return None if TypeInfo is not available.