refactor: emite compile error, don't bother with proc-macro-error2

hydro-project · Sep 13, 2024 · 94f6f04 · 94f6f04
1 parent eb1f1fb
commit 94f6f04
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Showing 3 changed files with 2 additions and 27 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -10,7 +10,6 @@ repository = "https://github.com/hydro-project/matchbox"
 proc-macro = true
 
 [dependencies]
-proc-macro-error2 = "2.0.0"
 proc-macro2 = "1.0.80"
 quote = "1.0.37"
 syn = { version = "2.0.7", features = ["fold", "full", "extra-traits"] }

diff --git a/src/lib.rs b/src/lib.rs
@@ -62,7 +62,6 @@ struct Bind {
 struct MyFold {
     binds: Vec<Bind>,
     counter: u32,
-    diagnostics: Vec<proc_macro_error2::Diagnostic>,
 }
 impl MyFold {
     fn handle(&mut self, subpat: syn::Pat, typ: Type, span: proc_macro2::Span) -> syn::PatIdent {
@@ -106,8 +105,8 @@ impl syn::fold::Fold for MyFold {
                         syn::Pat::Ident(pat_ident)
                     }
                     Err(err) => {
-                        self.diagnostics.push(err.into());
-                        syn::parse_quote_spanned!(span=> _error) // Error placeholder pattern.
+                        let compile_error = err.into_compile_error();
+                        syn::parse_quote_spanned!(span=> #compile_error)
                     }
                 }
             } else {