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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:41 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:41 +0000
commit4f9fe856a25ab29345b90e7725509e9ee38a37be (patch)
treee4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /tests/ui/proc-macro/signature-proc-macro-derive.rs
parentAdding upstream version 1.68.2+dfsg1. (diff)
downloadrustc-upstream/1.69.0+dfsg1.tar.xz
rustc-upstream/1.69.0+dfsg1.zip
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--tests/ui/proc-macro/signature-proc-macro-derive.rs31
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/ui/proc-macro/signature-proc-macro-derive.rs b/tests/ui/proc-macro/signature-proc-macro-derive.rs
new file mode 100644
index 000000000..f2fd824b6
--- /dev/null
+++ b/tests/ui/proc-macro/signature-proc-macro-derive.rs
@@ -0,0 +1,31 @@
+// force-host
+// no-prefer-dynamic
+
+#![crate_type = "proc-macro"]
+
+extern crate proc_macro;
+use proc_macro::TokenStream;
+
+#[proc_macro_derive(Blah)]
+pub fn bad_input(input: String) -> TokenStream {
+ //~^ ERROR mismatched derive proc macro signature
+ TokenStream::new()
+}
+
+#[proc_macro_derive(Bleh)]
+pub fn bad_output(input: TokenStream) -> String {
+ //~^ ERROR mismatched derive proc macro signature
+ String::from("blah")
+}
+
+#[proc_macro_derive(Bluh)]
+pub fn bad_everything(input: String) -> String {
+ //~^ ERROR mismatched derive proc macro signature
+ //~| ERROR mismatched derive proc macro signature
+ input
+}
+
+#[proc_macro_derive(Blih)]
+pub fn too_many(a: TokenStream, b: TokenStream, c: String) -> TokenStream {
+ //~^ ERROR mismatched derive proc macro signature
+}