Merge #9083

9083: internal: Simplify proc_macro_srv tests r=jonas-schievink a=jonas-schievink

Removes `serde_derive`, instead using `proc_macro_test` macros.

Should fix https://github.com/rust-analyzer/rust-analyzer/issues/9067

bors r+

Co-authored-by: Jonas Schievink <[email protected]>

1 files changed, 34 insertions, 4 deletions

diff --git a/crates/proc_macro_test/src/lib.rs b/crates/proc_macro_test/src/lib.rs
index ec2a114a3..4b26d2472 100644
--- a/crates/proc_macro_test/src/lib.rs
+++ b/crates/proc_macro_test/src/lib.rs
@@ -3,16 +3,46 @@
 use proc_macro::TokenStream;
 
 #[proc_macro]
-pub fn function_like_macro(args: TokenStream) -> TokenStream {
+pub fn fn_like_noop(args: TokenStream) -> TokenStream {
     args
 }
 
+#[proc_macro]
+pub fn fn_like_panic(args: TokenStream) -> TokenStream {
+    panic!("fn_like_panic!({})", args);
+}
+
+#[proc_macro]
+pub fn fn_like_error(args: TokenStream) -> TokenStream {
+    format!("compile_error!(\"fn_like_error!({})\");", args).parse().unwrap()
+}
+
 #[proc_macro_attribute]
-pub fn attribute_macro(_args: TokenStream, item: TokenStream) -> TokenStream {
+pub fn attr_noop(_args: TokenStream, item: TokenStream) -> TokenStream {
     item
 }
 
-#[proc_macro_derive(DummyTrait)]
-pub fn derive_macro(_item: TokenStream) -> TokenStream {
+#[proc_macro_attribute]
+pub fn attr_panic(args: TokenStream, item: TokenStream) -> TokenStream {
+    panic!("#[attr_panic {}] {}", args, item);
+}
+
+#[proc_macro_attribute]
+pub fn attr_error(args: TokenStream, item: TokenStream) -> TokenStream {
+    format!("compile_error!(\"#[attr_error({})] {}\");", args, item).parse().unwrap()
+}
+
+#[proc_macro_derive(DeriveEmpty)]
+pub fn derive_empty(_item: TokenStream) -> TokenStream {
     TokenStream::new()
 }
+
+#[proc_macro_derive(DerivePanic)]
+pub fn derive_panic(item: TokenStream) -> TokenStream {
+    panic!("#[derive(DerivePanic)] {}", item);
+}
+
+#[proc_macro_derive(DeriveError)]
+pub fn derive_error(item: TokenStream) -> TokenStream {
+    format!("compile_error!(\"#[derive(DeriveError)] {}\");", item).parse().unwrap()
+}