src/test/codegen/async-fn-debug-awaitee-field.rs

   1 // This test makes sure that the generator field capturing the awaitee in a `.await` expression
   2 // is called "__awaitee" in debuginfo. This name must not be changed since debuggers and debugger
   3 // extensions rely on the field having this name.
   4
   5 // ignore-tidy-linelength
   6 // compile-flags: -C debuginfo=2 --edition=2018
   7
   8 async fn foo() {}
   9
  10 async fn async_fn_test() {
  11     foo().await;
  12 }
  13
  14 // NONMSVC: [[GEN:!.*]] = !DICompositeType(tag: DW_TAG_structure_type, name: "{async_fn_env#0}", scope: [[GEN_SCOPE:![0-9]*]],
  15 // MSVC: [[GEN:!.*]] = !DICompositeType(tag: DW_TAG_union_type, name: "enum2$<async_fn_debug_awaitee_field::async_fn_test::async_fn_env$0>",
  16 // NONMSVC: [[GEN_SCOPE:!.*]] = !DINamespace(name: "async_fn_test",
  17 // CHECK: [[SUSPEND_STRUCT:!.*]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Suspend0", scope: [[GEN]],
  18 // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "__awaitee", scope: [[SUSPEND_STRUCT]], {{.*}}, baseType: [[AWAITEE_TYPE:![0-9]*]],
  19 // NONMSVC: [[AWAITEE_TYPE]] = !DICompositeType(tag: DW_TAG_structure_type, name: "{async_fn_env#0}", scope: [[AWAITEE_SCOPE:![0-9]*]],
  20 // MSVC: [[AWAITEE_TYPE]] = !DICompositeType(tag: DW_TAG_union_type, name: "enum2$<async_fn_debug_awaitee_field::foo::async_fn_env$0>",
  21 // NONMSVC: [[AWAITEE_SCOPE]] = !DINamespace(name: "foo",
  22
  23 fn main() {
  24     let _fn = async_fn_test();
  25 }