mirror of
https://github.com/GraphiteEditor/Graphite.git
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f12b4da549
* node-macro: modernize `node` macro * node-macro: add `CrateIdent` struct containing resolved crate paths * shaders: add trait `BufferStruct` and derive macro * shaders: `gamma_correction` and `channel_mixer` gpu nodes * shaders: `selective_color` gpu node * shaders: `brightness_contrast_classic` gpu node * shaders: append GPU to display name * node-macro: fixup doc links * shaders: consistently append " GPU" to all shader node names
47 lines
1.4 KiB
Rust
47 lines
1.4 KiB
Rust
use proc_macro_crate::{FoundCrate, crate_name};
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use proc_macro2::{Span, TokenStream};
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use quote::{format_ident, quote};
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pub struct CrateIdent {
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gcore: syn::Result<TokenStream>,
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gcore_shaders: syn::Result<TokenStream>,
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wgpu_executor: syn::Result<TokenStream>,
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}
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impl CrateIdent {
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pub fn gcore(&self) -> syn::Result<&TokenStream> {
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self.gcore.as_ref().map_err(Clone::clone)
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}
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pub fn gcore_shaders(&self) -> syn::Result<&TokenStream> {
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self.gcore_shaders.as_ref().map_err(Clone::clone)
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}
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pub fn wgpu_executor(&self) -> syn::Result<&TokenStream> {
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self.wgpu_executor.as_ref().map_err(Clone::clone)
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}
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}
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impl Default for CrateIdent {
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fn default() -> Self {
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let find_crate = |orig_name| match crate_name(orig_name) {
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Ok(FoundCrate::Itself) => Ok(quote!(crate)),
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Ok(FoundCrate::Name(name)) => {
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let name = format_ident!("{}", name);
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Ok(quote!(::#name))
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}
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Err(e) => Err(syn::Error::new(Span::call_site(), &format!("Could not find dependency on `{orig_name}`:\n{e}"))),
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};
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let gcore = find_crate("graphene-core");
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let gcore_shaders = find_crate("graphene-core-shaders").or_else(|eshaders| {
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gcore
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.as_ref()
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.map(Clone::clone)
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.map_err(|ecore| syn::Error::new(Span::call_site(), &format!("{ecore}\n\nFallback: {eshaders}")))
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});
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let wgpu_executor = find_crate("wgpu-executor");
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Self { gcore, gcore_shaders, wgpu_executor }
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}
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}
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