34 lines
1.1 KiB
Rust
34 lines
1.1 KiB
Rust
use core_types::{Ctx, ExtractFootprint, ops::Convert, transform::Footprint};
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use std::marker::PhantomData;
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// Re-export TypeNode from core-types for convenience
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pub use core_types::ops::TypeNode;
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// TODO: Rename to "Passthrough" and make this the node that users use, not the one defined in document_node_definitions.rs
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/// Passes-through the input value without changing it.
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/// This is useful for rerouting wires for organization purposes.
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#[node_macro::node(category(""), skip_impl)]
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fn identity<'i, T: 'i + Send>(value: T) -> T {
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value
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}
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#[node_macro::node(category(""), skip_impl)]
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fn into<'i, T: 'i + Send + Into<O>, O: 'i + Send>(_: impl Ctx, value: T, _out_ty: PhantomData<O>) -> O {
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value.into()
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}
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#[node_macro::node(category(""), skip_impl)]
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async fn convert<'i, T: 'i + Send + Convert<O, C>, O: 'i + Send, C: 'i + Send>(ctx: impl Ctx + ExtractFootprint, value: T, converter: C, _out_ty: PhantomData<O>) -> O {
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value.convert(*ctx.try_footprint().unwrap_or(&Footprint::DEFAULT), converter).await
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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pub fn identity_node() {
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assert_eq!(identity(&4), &4);
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}
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}
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