// gdb-command:run
-// gdb-command:print *a
-// gdbg-check:$1 = {value = [...] "abc"}
-// gdbr-check:$1 = unsized::Foo<[u8]> {value: [...]}
+// gdb-command:print a
+// gdbg-check:$1 = {data_ptr = [...], length = 4}
+// gdbr-check:$1 = &unsized::Foo<[u8]> {data_ptr: [...], length: 4}
-// gdb-command:print *b
-// gdbg-check:$2 = {value = {value = [...] "abc"}}
-// gdbr-check:$2 = unsized::Foo<unsized::Foo<[u8]>> {value: unsized::Foo<[u8]> {value: [...]}}
+// gdb-command:print b
+// gdbg-check:$2 = {data_ptr = [...], length = 4}
+// gdbr-check:$2 = &unsized::Foo<unsized::Foo<[u8]>> {data_ptr: [...], length: 4}
+// gdb-command:print c
+// gdbg-check:$3 = {pointer = [...], vtable = [...]}
+// gdbr-check:$3 = &unsized::Foo<dyn core::fmt::Debug> {pointer: [...], vtable: [...]}
+
+// === CDB TESTS ===================================================================================
+
+// cdb-command: g
+// cdb-command:dx a
+// cdb-check:a [Type: ref$<unsized::Foo<slice$<u8> > >]
+// cdb-check: [+0x000] data_ptr : 0x[...] [Type: unsized::Foo<slice$<u8> > *]
+// cdb-check: [...] length : 0x4 [Type: unsigned [...]int[...]
+
+// cdb-command:dx b
+// cdb-check:b [Type: ref$<unsized::Foo<unsized::Foo<slice$<u8> > > >]
+// cdb-check: [+0x000] data_ptr : 0x[...] [Type: unsized::Foo<unsized::Foo<slice$<u8> > > *]
+// cdb-check: [...] length : 0x4 [Type: unsigned [...]int[...]
+
+// cdb-command:dx c
+// cdb-check:c [Type: ref$<unsized::Foo<dyn$<core::fmt::Debug> > >]
+// cdb-check: [+0x000] pointer : 0x[...] [Type: unsized::Foo<dyn$<core::fmt::Debug> > *]
+// cdb-check: [...] vtable : 0x[...] [Type: unsigned [...]int[...] (*)[3]]
#![feature(omit_gdb_pretty_printer_section)]
#![omit_gdb_pretty_printer_section]
struct Foo<T: ?Sized> {
- value: T
+ value: T,
}
fn main() {
- let foo: Foo<Foo<[u8; 4]>> = Foo {
- value: Foo {
- value: *b"abc\0"
- }
- };
+ let foo: Foo<Foo<[u8; 4]>> = Foo { value: Foo { value: *b"abc\0" } };
+
+ // We expect `a`, `b`, and `c` to all be fat pointers.
+ // `a` and `b` should be slice-like and thus have a `data_ptr` and `length` field.
+ // `c` should be trait-object-like and thus have a `pointer` and `vtable` field.
let a: &Foo<[u8]> = &foo.value;
let b: &Foo<Foo<[u8]>> = &foo;
+ let c: &Foo<dyn std::fmt::Debug> = &Foo { value: 7i32 };
zzz(); // #break
}
-fn zzz() { () }
+fn zzz() {
+ ()
+}