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
generator_test() -> impl Generator<Yield = i32, Return = ()>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_FN:!.*]] = !DINamespace(name: "generator_test"
24 // CHECK-DAG: [[GEN:!.*]] = !DICompositeType(tag: DW_TAG_union_type, name: "generator$0"
25 // CHECK: {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant0", scope: [[GEN]],
26 // For brevity, we only check the struct name and members of the last variant.
27 // CHECK-SAME: file: [[FILE:![0-9]*]], line: 14,
28 // CHECK-NOT: flags: DIFlagArtificial
29 // CHECK-SAME: )
30 // CHECK: {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant1", scope: [[GEN]],
31 // CHECK-SAME: file: [[FILE]], line: 18,
32 // CHECK-NOT: flags: DIFlagArtificial
33 // CHECK-SAME: )
34 // CHECK: {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant2", scope: [[GEN]],
35 // CHECK-SAME: file: [[FILE]], line: 18,
36 // CHECK-NOT: flags: DIFlagArtificial
37 // CHECK-SAME: )
38 // CHECK: {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant3", scope: [[GEN]],
39 // CHECK-SAME: file: [[FILE]], line: 15,
40 // CHECK-NOT: flags: DIFlagArtificial
41 // CHECK-SAME: )
42 // CHECK: {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "variant4", scope: [[GEN]],
43 // CHECK-SAME: file: [[FILE]], line: 17,
44 // CHECK-SAME: baseType: [[VARIANT:![0-9]*]]
45 // CHECK-NOT: flags: DIFlagArtificial
46 // CHECK-SAME: )
47 // CHECK: [[S1:!.*]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Suspend1", scope: [[GEN]],
48 // CHECK-NOT: flags: DIFlagArtificial
49 // CHECK-SAME: )
50 // CHECK: {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "s", scope: [[S1]]
51 // CHECK-NOT: flags: DIFlagArtificial
52 // CHECK-SAME: )
53 // CHECK: {{!.*}} = !DIDerivedType(tag: DW_TAG_member, name: "discriminant", scope: [[GEN]],
54 // CHECK-NOT: flags: DIFlagArtificial
55
main()56 fn main() {
57 let _dummy = generator_test();
58 }
59