tests/codegen/generator-debug-msvc.rs

   1 // Verify debuginfo for generators:
   2 //  - Each variant points to the file and line of its yield point
   3 //  - The discriminants are marked artificial
   4 //  - Other fields are not marked artificial
   5 //
   6 //
   7 // compile-flags: -C debuginfo=2
   8 // only-msvc
   9
  10 #![feature(generators, generator_trait)]
  11 use std::ops::Generator;
  12
  13 fn generator_test() -> impl Generator<Yield = i32, Return = ()> {
  14     || {
  15         yield 0;
  16         let s = String::from("foo");
  17         yield 1;
  18     }
  19 }
  20
  21 // FIXME: No way to reliably check the filename.
  22
  23 // CHECK-DAG:  [[GEN:!.*]] = !DICompositeType(tag: DW_TAG_union_type, name: "enum2$<generator_debug_msvc::generator_test::generator_env$0>"
  24 // CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant0", scope: [[GEN]],
  25 // For brevity, we only check the struct name and members of the last variant.
  26 // CHECK-SAME: file: [[FILE:![0-9]*]], line: 14,
  27 // CHECK-NOT:  flags: DIFlagArtificial
  28 // CHECK-SAME: )
  29 // CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant1", scope: [[GEN]],
  30 // CHECK-SAME: file: [[FILE]], line: 18,
  31 // CHECK-NOT:  flags: DIFlagArtificial
  32 // CHECK-SAME: )
  33 // CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant2", scope: [[GEN]],
  34 // CHECK-SAME: file: [[FILE]], line: 18,
  35 // CHECK-NOT:  flags: DIFlagArtificial
  36 // CHECK-SAME: )
  37 // CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant3", scope: [[GEN]],
  38 // CHECK-SAME: file: [[FILE]], line: 15,
  39 // CHECK-NOT:  flags: DIFlagArtificial
  40 // CHECK-SAME: )
  41 // CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant4", scope: [[GEN]],
  42 // CHECK-SAME: file: [[FILE]], line: 17,
  43 // CHECK-SAME: baseType: [[VARIANT_WRAPPER:![0-9]*]]
  44 // CHECK-NOT:  flags: DIFlagArtificial
  45 // CHECK-SAME: )
  46 // CHECK:      [[VARIANT_WRAPPER]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Variant4", scope: [[GEN]],
  47 // CHECK:      !DIDerivedType(tag: DW_TAG_member, name: "value", scope: [[VARIANT_WRAPPER]], {{.*}}, baseType: [[VARIANT:![0-9]*]],
  48 // CHECK:      [[VARIANT]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Suspend1", scope: [[GEN]],
  49 // CHECK-NOT:  flags: DIFlagArtificial
  50 // CHECK-SAME: )
  51 // CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "s", scope: [[VARIANT]]
  52 // CHECK-NOT:  flags: DIFlagArtificial
  53 // CHECK-SAME: )
  54 // CHECK:      {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "tag", scope: [[GEN]],
  55 // CHECK-NOT: flags: DIFlagArtificial
  56
  57 fn main() {
  58     let _dummy = generator_test();
  59 }