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Not all structs are called Foo

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This commit is contained in:
Robbert van der Helm 2022-01-25 20:02:58 +01:00
parent 571dd1f2d4
commit 5cc9931de6
1 changed files with 6 additions and 4 deletions
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10
nih_plug_derive/src/lib.rs
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@ -8,6 +8,7 @@ use syn::spanned::Spanned;
pub fn derive_params(input: TokenStream) -> TokenStream { pub fn derive_params(input: TokenStream) -> TokenStream {
let ast = syn::parse_macro_input!(input as syn::DeriveInput); let ast = syn::parse_macro_input!(input as syn::DeriveInput);
let struct_name = &ast.ident;
let fields = match ast.data { let fields = match ast.data {
syn::Data::Struct(syn::DataStruct { syn::Data::Struct(syn::DataStruct {
fields: syn::Fields::Named(named_fields), fields: syn::Fields::Named(named_fields),
@ -27,12 +28,12 @@ pub fn derive_params(input: TokenStream) -> TokenStream {
// containing pointers to those parmaeters. // containing pointers to those parmaeters.
let mut param_insert_tokens = Vec::new(); let mut param_insert_tokens = Vec::new();
for field in fields.named { for field in fields.named {
let name = match &field.ident { let field_name = match &field.ident {
Some(ident) => ident, Some(ident) => ident,
_ => continue, _ => continue,
}; };
for attr in &field.attrs { for attr in field.attrs {
let list = match attr.parse_meta() { let list = match attr.parse_meta() {
Ok(syn::Meta::List(list)) if list.path.is_ident("id") => list, Ok(syn::Meta::List(list)) if list.path.is_ident("id") => list,
_ => continue, _ => continue,
@ -51,12 +52,13 @@ pub fn derive_params(input: TokenStream) -> TokenStream {
// The specific parameter types know how to convert themselves into the correct ParamPtr // The specific parameter types know how to convert themselves into the correct ParamPtr
// variant // variant
param_insert_tokens.push(quote! { param_map.insert(#param_id, self.#name.as_ptr()); }); param_insert_tokens
.push(quote! { param_map.insert(#param_id, self.#field_name.as_ptr()); });
} }
} }
quote! { quote! {
impl Params for Foo { impl Params for #struct_name {
fn param_map( fn param_map(
self: std::pin::Pin<&Self>, self: std::pin::Pin<&Self>,
) -> std::collections::HashMap<&'static str, nih_plug::params::ParamPtr> { ) -> std::collections::HashMap<&'static str, nih_plug::params::ParamPtr> {