Add support for deriving items with generics

finchie

Apr 2, 2025, 6:37 AM

4BMW4JJOJ3XKMSUXDGOG4QC6QPDBC4PBOD3M2RAQQPRAF3CSGXUQC

Dependencies

• [2] K3G4HK2J Track Fluent files using `include!`
• [3] XGRU7WZE Add `expand` feature for proc-macro debugging
• [4] 3NMKD6I5 Refactor `Localize` trait to use `std::io::Write`
• [5] OWXLFLRM Merge `cli_macros` shim into `fluent_embed`
• [6] CESJ4CTO Move macro-specific code into `macro_impl` module
• [7] 7M4UI3TW Update dependencies to latest versions
• [*] O77KA6C4 Create `fluent_embed` crate

Change contents

• edit in fluent_embed_derive/src/macro_impl/mod.rs at line 5
  [4.162]

  [4.162]
  + use syn::parse_quote;
• edit in fluent_embed_derive/src/macro_impl/mod.rs at line 63
  [4.1491]

  [4.1491]
  + // Get the generics for the derived item

  + let (impl_generics, type_generics, where_clause) = derive_input.generics.split_for_impl();

  + // Combine all of the derived item's generic parameters along with `std::io::Write` for `Localize`

  + // e.g. for MyStruct<'a, T>, it will be <'a, T, W: std::io::Write>

  + let localize_impl_generics =

  + derive_input

  + .generics

  + .params

  + .clone()

  + .into_iter()

  + .chain(std::iter::once(syn::GenericParam::Type(

  + parse_quote!(W: std::io::Write),

  + )));

  +
• replacement in fluent_embed_derive/src/macro_impl/mod.rs at line 78
  [4.1507]→[2.234:256](∅→∅)
  − impl #ident {
  [4.1507]

  [2.256]
  + impl #impl_generics #ident #type_generics #where_clause {
• replacement in fluent_embed_derive/src/macro_impl/mod.rs at line 85
  [2.652]→[4.211:286](∅→∅),[4.1507]→[4.211:286](∅→∅)
  − impl<W: ::std::io::Write> ::fluent_embed::Localize<W> for #ident {
  [2.652]

  [4.97]
  + impl <#(#localize_impl_generics),*> ::fluent_embed::Localize<W> for #ident #type_generics #where_clause {
• replacement in fluent_embed_derive/src/lib.rs at line 22
  [3.3498]→[4.5386:5417](∅→∅),[4.5386]→[4.5386:5417](∅→∅)
  − #original_item
  [3.3498]

  [4.869]
  + #derive_input