Struct AnyMergeVarBuilder 

pub struct AnyMergeVarBuilder { /* private fields */ }

Build a merge_var! from any number of input vars of any type.

Implementations

impl AnyMergeVarBuilder

pub fn new() -> Self

new empty.

pub fn with_capacity(capacity: usize) -> Self

New with pre-allocated inputs.

pub fn push(&mut self, input: AnyVar)

Push an input.

pub fn build_any( self, merge: impl FnMut(&[AnyVar]) -> BoxAnyVarValue + Send + 'static, output_type: TypeId, ) -> AnyVar

Build a read-only merge var.

pub fn build<O: VarValue>( self, merge: impl FnMut(&[AnyVar]) -> O + Send + 'static, ) -> Var<O>

Build a read-only strongly typed merge var.

pub fn build_bidi_any( self, merge: impl FnMut(&[AnyVar]) -> BoxAnyVarValue + Send + 'static, map_back: impl FnMut(&dyn AnyVarValue, usize) -> BoxAnyVarValue + Send + 'static, output_type: TypeId, ) -> AnyVar

Build a read-write merge var.

pub fn build_bidi_any_modify( self, merge: impl FnMut(&[AnyVar]) -> BoxAnyVarValue + Send + 'static, modify_back: impl FnMut(&dyn AnyVarValue, usize, &mut AnyVarModify<'_>) + Send + 'static, output_type: TypeId, ) -> AnyVar

Build a read-write merge var that modifies each input back.

pub fn build_bidi<O: VarValue>( self, merge: impl FnMut(&[AnyVar]) -> O + Send + 'static, map_back: impl FnMut(&O, usize) -> BoxAnyVarValue + Send + 'static, ) -> Var<O>

Build a read-write strongly typed merge var.

pub fn build_bidi_modify<O: VarValue>( self, merge: impl FnMut(&[AnyVar]) -> O + Send + 'static, modify_back: impl FnMut(&O, usize, &mut AnyVarModify<'_>) + Send + 'static, ) -> Var<O>

Build a read-write strongly typed merge var that modifies each input back.

pub fn into_typed<I: VarValue>(self) -> MergeVarBuilder<I>

Convert into a MergeVarBuilder<I>.

Panics

Panics if any input is not of type I.

Trait Implementations

impl Clone for AnyMergeVarBuilder

fn clone(&self) -> AnyMergeVarBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for AnyMergeVarBuilder

fn default() -> Self

Returns the “default value” for a type.