3 // === GDB TESTS ===================================================================================
8 // gdbg-check:$1 = {data_ptr = [...], length = 4}
9 // gdbr-check:$1 = &unsized::Foo<[u8]> {data_ptr: [...], length: 4}
11 // gdb-command:print b
12 // gdbg-check:$2 = {data_ptr = [...], length = 4}
13 // gdbr-check:$2 = &unsized::Foo<unsized::Foo<[u8]>> {data_ptr: [...], length: 4}
15 // gdb-command:print c
16 // gdbg-check:$3 = {pointer = [...], vtable = [...]}
17 // gdbr-check:$3 = &unsized::Foo<dyn core::fmt::Debug> {pointer: [...], vtable: [...]}
19 // gdb-command:print tuple_slice
20 // gdbg-check:$4 = {data_ptr = [...], length = 2}
21 // gdbr-check:$4 = &(i32, i32, [i32]) {data_ptr: [...], length: 2}
23 // gdb-command:print tuple_dyn
24 // gdbg-check:$5 = {pointer = [...], vtable = [...]}
25 // gdbr-check:$5 = &(i32, i32, dyn core::fmt::Debug) {pointer: [...], vtable: [...]}
27 // === CDB TESTS ===================================================================================
31 // cdb-check:a [Type: ref$<unsized::Foo<slice$<u8> > >]
32 // cdb-check: [+0x000] data_ptr : 0x[...] [Type: unsized::Foo<slice$<u8> > *]
33 // cdb-check: [...] length : 0x4 [Type: unsigned [...]int[...]
36 // cdb-check:b [Type: ref$<unsized::Foo<unsized::Foo<slice$<u8> > > >]
37 // cdb-check: [+0x000] data_ptr : 0x[...] [Type: unsized::Foo<unsized::Foo<slice$<u8> > > *]
38 // cdb-check: [...] length : 0x4 [Type: unsigned [...]int[...]
41 // cdb-check:c [Type: ref$<unsized::Foo<dyn$<core::fmt::Debug> > >]
42 // cdb-check: [+0x000] pointer : 0x[...] [Type: unsized::Foo<dyn$<core::fmt::Debug> > *]
43 // cdb-check: [...] vtable : 0x[...] [Type: unsigned [...]int[...] (*)[3]]
45 // cdb-command:dx tuple_slice
46 // cdb-check:tuple_slice [Type: ref$<tuple$<i32,i32,slice$<i32> > >]
47 // cdb-check: [+0x000] data_ptr : 0x[...] [Type: tuple$<i32,i32,slice$<i32> > *]
48 // cdb-check: [...] length : 0x2 [Type: unsigned [...]int[...]
50 // cdb-command:dx tuple_dyn
51 // cdb-check:tuple_dyn [Type: ref$<tuple$<i32,i32,dyn$<core::fmt::Debug> > >]
52 // cdb-check: [+0x000] pointer : 0x[...] [Type: tuple$<i32,i32,dyn$<core::fmt::Debug> > *]
53 // cdb-check: [...] vtable : 0x[...] [Type: unsigned [...]int[...] (*)[3]]
55 #![feature(unsized_tuple_coercion)]
56 #![feature(omit_gdb_pretty_printer_section)]
57 #![omit_gdb_pretty_printer_section]
59 struct Foo<T: ?Sized> {
64 let foo: Foo<Foo<[u8; 4]>> = Foo { value: Foo { value: *b"abc\0" } };
66 // We expect `a`, `b`, and `c` to all be fat pointers.
67 // `a` and `b` should be slice-like and thus have a `data_ptr` and `length` field.
68 // `c` should be trait-object-like and thus have a `pointer` and `vtable` field.
69 let a: &Foo<[u8]> = &foo.value;
70 let b: &Foo<Foo<[u8]>> = &foo;
71 let c: &Foo<dyn std::fmt::Debug> = &Foo { value: 7i32 };
73 // Also check unsized tuples
74 let tuple_slice: &(i32, i32, [i32]) = &(0, 1, [2, 3]);
75 let tuple_dyn: &(i32, i32, dyn std::fmt::Debug) = &(0, 1, &3u64);