1 files changed, 38 insertions, 0 deletions
diff --git a/src/test/ui/proc-macro/macro-namespace-reserved.rs b/src/test/ui/proc-macro/macro-namespace-reserved.rs
new file mode 100644
index 000000000..60d379e41
--- /dev/null
+++ b/src/test/ui/proc-macro/macro-namespace-reserved.rs
@@ -0,0 +1,38 @@
+// force-host
+// no-prefer-dynamic
+
+#![feature(decl_macro)]
+#![crate_type = "proc-macro"]
+
+extern crate proc_macro;
+use proc_macro::*;
+
+#[proc_macro]
+pub fn my_macro(input: TokenStream) -> TokenStream {
+    input
+}
+
+#[proc_macro_attribute]
+pub fn my_macro_attr(input: TokenStream, _: TokenStream) -> TokenStream {
+    input
+}
+
+#[proc_macro_derive(MyTrait)]
+pub fn my_macro_derive(input: TokenStream) -> TokenStream {
+    input
+}
+
+macro my_macro() {} //~ ERROR the name `my_macro` is defined multiple times
+macro my_macro_attr() {} //~ ERROR the name `my_macro_attr` is defined multiple times
+macro MyTrait() {} //~ ERROR the name `MyTrait` is defined multiple times
+
+#[proc_macro_derive(SameName)]
+pub fn foo(input: TokenStream) -> TokenStream {
+    input
+}
+
+#[proc_macro]
+pub fn SameName(input: TokenStream) -> TokenStream {
+//~^ ERROR the name `SameName` is defined multiple times
+    input
+}