1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// ignore-tidy-linelength
// ignore-android: FIXME(#10381)
// min-lldb-version: 310
// compile-flags:-g
// === GDB TESTS ===================================================================================
// gdb-command:run
// gdb-command:print some
// gdb-check:$1 = {RUST$ENCODED$ENUM$0$None = {0x12345678}}
// gdb-command:print none
// gdb-check:$2 = {RUST$ENCODED$ENUM$0$None = {0x0}}
// gdb-command:print full
// gdb-check:$3 = {RUST$ENCODED$ENUM$1$Empty = {454545, 0x87654321, 9988}}
// gdb-command:print empty_gdb->discr
// gdb-check:$4 = (isize *) 0x0
// gdb-command:print droid
// gdb-check:$5 = {RUST$ENCODED$ENUM$2$Void = {id = 675675, range = 10000001, internals = 0x43218765}}
// gdb-command:print void_droid_gdb->internals
// gdb-check:$6 = (isize *) 0x0
// gdb-command:continue
// === LLDB TESTS ==================================================================================
// lldb-command:run
// lldb-command:print some
// lldb-check:[...]$0 = Some(&0x12345678)
// lldb-command:print none
// lldb-check:[...]$1 = None
// lldb-command:print full
// lldb-check:[...]$2 = Full(454545, &0x87654321, 9988)
// lldb-command:print empty
// lldb-check:[...]$3 = Empty
// lldb-command:print droid
// lldb-check:[...]$4 = Droid { id: 675675, range: 10000001, internals: &0x43218765 }
// lldb-command:print void_droid
// lldb-check:[...]$5 = Void
// lldb-command:print some_str
// lldb-check:[...]$6 = Some(&str { data_ptr: [...], length: 3 })
// lldb-command:print none_str
// lldb-check:[...]$7 = None
#![omit_gdb_pretty_printer_section]
// If a struct has exactly two variants, one of them is empty, and the other one
// contains a non-nullable pointer, then this value is used as the discriminator.
// The test cases in this file make sure that something readable is generated for
// this kind of types.
// If the non-empty variant contains a single non-nullable pointer than the whole
// item is represented as just a pointer and not wrapped in a struct.
// Unfortunately (for these test cases) the content of the non-discriminant fields
// in the null-case is not defined. So we just read the discriminator field in
// this case (by casting the value to a memory-equivalent struct).
enum MoreFields<'a> {
Full(u32, &'a isize, i16),
Empty
}
struct MoreFieldsRepr<'a> {
a: u32,
discr: &'a isize,
b: i16
}
enum NamedFields<'a> {
Droid { id: i32, range: i64, internals: &'a isize },
Void
}
struct NamedFieldsRepr<'a> {
id: i32,
range: i64,
internals: &'a isize
}
fn main() {
let some_str: Option<&'static str> = Some("abc");
let none_str: Option<&'static str> = None;
let some: Option<&u32> = Some(unsafe { std::mem::transmute(0x12345678u) });
let none: Option<&u32> = None;
let full = MoreFields::Full(454545, unsafe { std::mem::transmute(0x87654321u) }, 9988);
let empty = MoreFields::Empty;
let empty_gdb: &MoreFieldsRepr = unsafe { std::mem::transmute(&MoreFields::Empty) };
let droid = NamedFields::Droid {
id: 675675,
range: 10000001,
internals: unsafe { std::mem::transmute(0x43218765u) }
};
let void_droid = NamedFields::Void;
let void_droid_gdb: &NamedFieldsRepr = unsafe { std::mem::transmute(&NamedFields::Void) };
zzz(); // #break
}
fn zzz() {()}
|
