1 files changed, 142 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/auxiliary/macro_rules.rs b/src/tools/clippy/tests/ui/auxiliary/macro_rules.rs
new file mode 100644
index 000000000..83a0af6b8
--- /dev/null
+++ b/src/tools/clippy/tests/ui/auxiliary/macro_rules.rs
@@ -0,0 +1,142 @@
+#![allow(dead_code)]
+
+//! Used to test that certain lints don't trigger in imported external macros
+
+#[macro_export]
+macro_rules! foofoo {
+    () => {
+        loop {}
+    };
+}
+
+#[macro_export]
+macro_rules! must_use_unit {
+    () => {
+        #[must_use]
+        fn foo() {}
+    };
+}
+
+#[macro_export]
+macro_rules! try_err {
+    () => {
+        pub fn try_err_fn() -> Result<i32, i32> {
+            let err: i32 = 1;
+            // To avoid warnings during rustfix
+            if true { Err(err)? } else { Ok(2) }
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! string_add {
+    () => {
+        let y = "".to_owned();
+        let z = y + "...";
+    };
+}
+
+#[macro_export]
+macro_rules! take_external {
+    ($s:expr) => {
+        std::mem::replace($s, Default::default())
+    };
+}
+
+#[macro_export]
+macro_rules! option_env_unwrap_external {
+    ($env: expr) => {
+        option_env!($env).unwrap()
+    };
+    ($env: expr, $message: expr) => {
+        option_env!($env).expect($message)
+    };
+}
+
+#[macro_export]
+macro_rules! ref_arg_binding {
+    () => {
+        let ref _y = 42;
+    };
+}
+
+#[macro_export]
+macro_rules! ref_arg_function {
+    () => {
+        fn fun_example(ref _x: usize) {}
+    };
+}
+
+#[macro_export]
+macro_rules! as_conv_with_arg {
+    (0u32 as u64) => {
+        ()
+    };
+}
+
+#[macro_export]
+macro_rules! as_conv {
+    () => {
+        0u32 as u64
+    };
+}
+
+#[macro_export]
+macro_rules! large_enum_variant {
+    () => {
+        enum LargeEnumInMacro {
+            A(i32),
+            B([i32; 8000]),
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! field_reassign_with_default {
+    () => {
+        #[derive(Default)]
+        struct A {
+            pub i: i32,
+            pub j: i64,
+        }
+        fn lint() {
+            let mut a: A = Default::default();
+            a.i = 42;
+            a;
+        }
+    };
+}
+
+#[macro_export]
+macro_rules! default_numeric_fallback {
+    () => {
+        let x = 22;
+    };
+}
+
+#[macro_export]
+macro_rules! mut_mut {
+    () => {
+        let mut_mut_ty: &mut &mut u32 = &mut &mut 1u32;
+    };
+}
+
+#[macro_export]
+macro_rules! ptr_as_ptr_cast {
+    ($ptr: ident) => {
+        $ptr as *const i32
+    };
+}
+
+#[macro_export]
+macro_rules! manual_rem_euclid {
+    () => {
+        let value: i32 = 5;
+        let _: i32 = ((value % 4) + 4) % 4;
+    };
+}
+
+#[macro_export]
+macro_rules! equatable_if_let {
+    ($a:ident) => {{ if let 2 = $a {} }};
+}