Auto merge of #30598 - est31:macro_export_help_note, r=Manishearth

The current help message is too much about "normal" macros to be used
as general message. Keep it for normal macros, and add custom help and
error messages for macro definitions.

3 files changed, 89 insertions, 0 deletions

diff --git a/src/test/parse-fail/pub-item-macro.rs b/src/test/parse-fail/pub-item-macro.rs
new file mode 100644
index 00000000000..8809e9a257d
--- /dev/null
+++ b/src/test/parse-fail/pub-item-macro.rs
@@ -0,0 +1,28 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Issue #14660
+
+macro_rules! priv_x { () => {
+    static x: u32 = 0;
+}}
+
+macro_rules! pub_x { () => {
+    pub priv_x!(); //~ ERROR can't qualify macro invocation with `pub`
+    //~^ HELP try adjusting the macro to put `pub` inside the invocation
+}}
+
+mod foo {
+    pub_x!();
+}
+
+fn main() {
+    let y: u32 = foo::x;
+}
diff --git a/src/test/parse-fail/pub-macro-rules.rs b/src/test/parse-fail/pub-macro-rules.rs
new file mode 100644
index 00000000000..93b992f2f8a
--- /dev/null
+++ b/src/test/parse-fail/pub-macro-rules.rs
@@ -0,0 +1,27 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#[macro_use] mod bleh {
+    pub macro_rules! foo { //~ ERROR can't qualify macro_rules invocation with `pub`
+    //~^ HELP did you mean #[macro_export]?
+        ($n:ident) => (
+            fn $n () -> i32 {
+                1
+            }
+        )
+    }
+
+}
+
+foo!(meh);
+
+fn main() {
+    println!("{}", meh());
+}
diff --git a/src/test/parse-fail/pub-method-macro.rs b/src/test/parse-fail/pub-method-macro.rs
new file mode 100644
index 00000000000..198fa5b9aca
--- /dev/null
+++ b/src/test/parse-fail/pub-method-macro.rs
@@ -0,0 +1,34 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// Issue #18317
+
+mod bleh {
+    macro_rules! defn {
+        ($n:ident) => (
+            fn $n (&self) -> i32 {
+                println!("{}", stringify!($n));
+                1
+            }
+        )
+    }
+
+    #[derive(Copy, Clone)]
+    pub struct S;
+
+    impl S {
+        pub defn!(f); //~ ERROR can't qualify macro invocation with `pub`
+        //~^ HELP try adjusting the macro to put `pub` inside the invocation
+    }
+}
+
+fn main() {
+    bleh::S.f();
+}