bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir_def/src/macro_expansion_tests/mbe/regression.rs')
-rw-r--r--crates/hir_def/src/macro_expansion_tests/mbe/regression.rs102
1 files changed, 102 insertions, 0 deletions
diff --git a/crates/hir_def/src/macro_expansion_tests/mbe/regression.rs b/crates/hir_def/src/macro_expansion_tests/mbe/regression.rs
index 26fd807e65..ac09c23cd3 100644
--- a/crates/hir_def/src/macro_expansion_tests/mbe/regression.rs
+++ b/crates/hir_def/src/macro_expansion_tests/mbe/regression.rs
@@ -375,3 +375,105 @@ ok!();
"##]],
);
}
+
+#[test]
+fn test_cfg_if_items() {
+ // From <https://github.com/rust-lang/rust/blob/33fe1131cadba69d317156847be9a402b89f11bb/src/libstd/macros.rs#L986>.
+ check(
+ r#"
+macro_rules! __cfg_if_items {
+ (($($not:meta,)*) ; ) => {};
+ (($($not:meta,)*) ; ( ($($m:meta),*) ($($it:item)*) ), $($rest:tt)*) => {
+ __cfg_if_items! { ($($not,)* $($m,)*) ; $($rest)* }
+ }
+}
+__cfg_if_items! {
+ (rustdoc,);
+ ( () (
+ #[ cfg(any(target_os = "redox", unix))]
+ #[ stable(feature = "rust1", since = "1.0.0")]
+ pub use sys::ext as unix;
+
+ #[cfg(windows)]
+ #[stable(feature = "rust1", since = "1.0.0")]
+ pub use sys::ext as windows;
+
+ #[cfg(any(target_os = "linux", target_os = "l4re"))]
+ pub mod linux;
+ )),
+}
+"#,
+ expect![[r#"
+macro_rules! __cfg_if_items {
+ (($($not:meta,)*) ; ) => {};
+ (($($not:meta,)*) ; ( ($($m:meta),*) ($($it:item)*) ), $($rest:tt)*) => {
+ __cfg_if_items! { ($($not,)* $($m,)*) ; $($rest)* }
+ }
+}
+__cfg_if_items! {
+ (rustdoc, );
+}
+"#]],
+ );
+}
+
+#[test]
+fn test_cfg_if_main() {
+ // From <https://github.com/rust-lang/rust/blob/3d211248393686e0f73851fc7548f6605220fbe1/src/libpanic_unwind/macros.rs#L9>.
+ check(
+ r#"
+macro_rules! cfg_if {
+ ($(if #[cfg($($meta:meta),*)] { $($it:item)* } )else* else { $($it2:item)* })
+ => {
+ __cfg_if_items! {
+ () ;
+ $( ( ($($meta),*) ($($it)*) ), )*
+ ( () ($($it2)*) ),
+ }
+ };
+
+ // Internal macro to Apply a cfg attribute to a list of items
+ (@__apply $m:meta, $($it:item)*) => { $(#[$m] $it)* };
+}
+
+cfg_if! {
+ if #[cfg(target_env = "msvc")] {
+ // no extra unwinder support needed
+ } else if #[cfg(all(target_arch = "wasm32", not(target_os = "emscripten")))] {
+ // no unwinder on the system!
+ } else {
+ mod libunwind;
+ pub use libunwind::*;
+ }
+}
+
+cfg_if! {
+ @__apply cfg(all(not(any(not(any(target_os = "solaris", target_os = "illumos")))))),
+}
+"#,
+ expect![[r##"
+macro_rules! cfg_if {
+ ($(if #[cfg($($meta:meta),*)] { $($it:item)* } )else* else { $($it2:item)* })
+ => {
+ __cfg_if_items! {
+ () ;
+ $( ( ($($meta),*) ($($it)*) ), )*
+ ( () ($($it2)*) ),
+ }
+ };
+
+ // Internal macro to Apply a cfg attribute to a list of items
+ (@__apply $m:meta, $($it:item)*) => { $(#[$m] $it)* };
+}
+
+__cfg_if_items! {
+ ();
+ ((target_env = "msvc")()), ((all(target_arch = "wasm32", not(target_os = "emscripten")))()), (()(mod libunwind;
+ pub use libunwind::*;
+ )),
+}
+
+
+"##]],
+ );
+}