ee4e98f8a9
# Objective - Storage buffers are useful and not currently supported by the `AsBindGroup` derive which means you need to expand the macro if you need a storage buffer ## Solution - Add a new `#[storage]` attribute to the derive `AsBindGroup` macro. - Support and optional `read_only` parameter that defaults to false when not present. - Support visibility parameters like the texture and sampler attributes. --- ## Changelog - Add a new `#[storage(index)]` attribute to the derive `AsBindGroup` macro. Co-authored-by: IceSentry <IceSentry@users.noreply.github.com>
29 lines
915 B
Rust
29 lines
915 B
Rust
mod as_bind_group;
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mod extract_resource;
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use bevy_macro_utils::BevyManifest;
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use proc_macro::TokenStream;
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use syn::{parse_macro_input, DeriveInput};
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pub(crate) fn bevy_render_path() -> syn::Path {
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BevyManifest::default()
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.maybe_get_path("bevy_render")
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// NOTE: If the derivation is within bevy_render, then we need to return 'crate'
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.unwrap_or_else(|| BevyManifest::parse_str("crate"))
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}
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#[proc_macro_derive(ExtractResource)]
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pub fn derive_extract_resource(input: TokenStream) -> TokenStream {
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extract_resource::derive_extract_resource(input)
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}
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#[proc_macro_derive(
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AsBindGroup,
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attributes(uniform, texture, sampler, bind_group_data, storage)
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)]
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pub fn derive_as_bind_group(input: TokenStream) -> TokenStream {
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let input = parse_macro_input!(input as DeriveInput);
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as_bind_group::derive_as_bind_group(input).unwrap_or_else(|err| err.to_compile_error().into())
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}
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