Add a test for resolving `macro_rules` calls inside attributes

(cherry picked from commit 3c4066d1126b7c0ed13da96639ca86ffc42ceea6)

2 files changed, 202 insertions, 0 deletions

diff --git a/tests/ui/attributes/key-value-expansion-scope.rs b/tests/ui/attributes/key-value-expansion-scope.rs
new file mode 100644
index 00000000000..f435e36ce63
--- /dev/null
+++ b/tests/ui/attributes/key-value-expansion-scope.rs
@@ -0,0 +1,64 @@
+#![doc = in_root!()] // FIXME, this is a bug
+#![doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+#![doc = in_mod_escape!()] // FIXME, this is a bug
+#![doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+
+#[doc = in_root!()] //~ ERROR cannot find macro `in_root` in this scope
+#[doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+#[doc = in_mod_escape!()] //~ ERROR cannot find macro `in_mod_escape` in this scope
+#[doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+fn before() {
+    #![doc = in_root!()] //~ ERROR cannot find macro `in_root` in this scope
+    #![doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+    #![doc = in_mod_escape!()] //~ ERROR cannot find macro `in_mod_escape` in this scope
+    #![doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+}
+
+macro_rules! in_root { () => { "" } }
+
+mod macros_stay {
+    #![doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+
+    macro_rules! in_mod { () => { "" } }
+
+    #[doc = in_mod!()] // OK
+    fn f() {
+        #![doc = in_mod!()] // OK
+    }
+}
+
+#[macro_use]
+mod macros_escape {
+    #![doc = in_mod_escape!()] //~ ERROR cannot find macro `in_mod_escape` in this scope
+
+    macro_rules! in_mod_escape { () => { "" } }
+
+    #[doc = in_mod_escape!()] // OK
+    fn f() {
+        #![doc = in_mod_escape!()] // OK
+    }
+}
+
+fn block() {
+    #![doc = in_block!()]  //~ ERROR cannot find macro `in_block` in this scope
+
+    macro_rules! in_block { () => { "" } }
+
+    #[doc = in_block!()] // OK
+    fn f() {
+        #![doc = in_block!()] // OK
+    }
+}
+
+#[doc = in_root!()] // OK
+#[doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+#[doc = in_mod_escape!()] // OK
+#[doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+fn after() {
+    #![doc = in_root!()] // OK
+    #![doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+    #![doc = in_mod_escape!()] // OK
+    #![doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+}
+
+fn main() {}
diff --git a/tests/ui/attributes/key-value-expansion-scope.stderr b/tests/ui/attributes/key-value-expansion-scope.stderr
new file mode 100644
index 00000000000..2fa2ed0fa3a
--- /dev/null
+++ b/tests/ui/attributes/key-value-expansion-scope.stderr
@@ -0,0 +1,138 @@
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:2:10
+   |
+LL | #![doc = in_mod!()]
+   |          ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:4:10
+   |
+LL | #![doc = in_block!()]
+   |          ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_root` in this scope
+  --> $DIR/key-value-expansion-scope.rs:6:9
+   |
+LL | #[doc = in_root!()]
+   |         ^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:7:9
+   |
+LL | #[doc = in_mod!()]
+   |         ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod_escape` in this scope
+  --> $DIR/key-value-expansion-scope.rs:8:9
+   |
+LL | #[doc = in_mod_escape!()]
+   |         ^^^^^^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:9:9
+   |
+LL | #[doc = in_block!()]
+   |         ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_root` in this scope
+  --> $DIR/key-value-expansion-scope.rs:11:14
+   |
+LL |     #![doc = in_root!()]
+   |              ^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:12:14
+   |
+LL |     #![doc = in_mod!()]
+   |              ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod_escape` in this scope
+  --> $DIR/key-value-expansion-scope.rs:13:14
+   |
+LL |     #![doc = in_mod_escape!()]
+   |              ^^^^^^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:14:14
+   |
+LL |     #![doc = in_block!()]
+   |              ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:20:14
+   |
+LL |     #![doc = in_mod!()]
+   |              ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod_escape` in this scope
+  --> $DIR/key-value-expansion-scope.rs:32:14
+   |
+LL |     #![doc = in_mod_escape!()]
+   |              ^^^^^^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:43:14
+   |
+LL |     #![doc = in_block!()]
+   |              ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:54:9
+   |
+LL | #[doc = in_mod!()]
+   |         ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:56:9
+   |
+LL | #[doc = in_block!()]
+   |         ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:59:14
+   |
+LL |     #![doc = in_mod!()]
+   |              ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:61:14
+   |
+LL |     #![doc = in_block!()]
+   |              ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: aborting due to 17 previous errors
+