rust/tests/debuginfo/option-like-enum.rs

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//@ ignore-test // Test temporarily ignored due to debuginfo tests being disabled, see PR 47155
//@ min-lldb-version: 310
//@ compile-flags:-g
// === GDB TESTS ===================================================================================
// gdb-command:run
// gdb-command:print some
// gdbg-check:$1 = {RUST$ENCODED$ENUM$0$None = {__0 = 0x12345678}}
// gdbr-check:$1 = core::option::Option<&u32>::Some(0x12345678)
// gdb-command:print none
// gdbg-check:$2 = {RUST$ENCODED$ENUM$0$None = {__0 = 0x0}}
// gdbr-check:$2 = core::option::Option<&u32>::None
// gdb-command:print full
// gdbg-check:$3 = {RUST$ENCODED$ENUM$1$Empty = {__0 = 454545, __1 = 0x87654321, __2 = 9988}}
// gdbr-check:$3 = option_like_enum::MoreFields::Full(454545, 0x87654321, 9988)
// gdbg-command:print empty_gdb->discr
// gdbr-command:print empty_gdb.discr
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// gdb-check:$4 = (isize *) 0x0
// gdb-command:print droid
// gdbg-check:$5 = {RUST$ENCODED$ENUM$2$Void = {id = 675675, range = 10000001, internals = 0x43218765}}
// gdbr-check:$5 = option_like_enum::NamedFields::Droid{id: 675675, range: 10000001, internals: 0x43218765}
// gdbg-command:print void_droid_gdb->internals
// gdbr-command:print void_droid_gdb.internals
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// gdb-check:$6 = (isize *) 0x0
// gdb-command:print nested_non_zero_yep
// gdbg-check:$7 = {RUST$ENCODED$ENUM$1$2$Nope = {__0 = 10.5, __1 = {a = 10, b = 20, c = [...]}}}
// gdbr-check:$7 = option_like_enum::NestedNonZero::Yep(10.5, option_like_enum::NestedNonZeroField {a: 10, b: 20, c: 0x[...] "x[...]"})
// gdb-command:print nested_non_zero_nope
// gdbg-check:$8 = {RUST$ENCODED$ENUM$1$2$Nope = {__0 = [...], __1 = {a = [...], b = [...], c = 0x0}}}
// gdbr-check:$8 = option_like_enum::NestedNonZero::Nope
// gdb-command:continue
// === LLDB TESTS ==================================================================================
// lldb-command:run
// lldb-command:v some
// lldb-check:[...] Some(&0x12345678)
// lldb-command:v none
// lldb-check:[...] None
// lldb-command:v full
// lldb-check:[...] Full(454545, &0x87654321, 9988)
// lldb-command:v empty
// lldb-check:[...] Empty
// lldb-command:v droid
// lldb-check:[...] Droid { id: 675675, range: 10000001, internals: &0x43218765 }
// lldb-command:v void_droid
// lldb-check:[...] Void
// lldb-command:v some_str
// lldb-check:[...] Some("abc")
// lldb-command:v none_str
// lldb-check:[...] None
// lldb-command:v nested_non_zero_yep
// lldb-check:[...] Yep(10.5, NestedNonZeroField { a: 10, b: 20, c: &[...] })
// lldb-command:v nested_non_zero_nope
// lldb-check:[...] Nope
#![feature(omit_gdb_pretty_printer_section)]
#![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.
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// 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> {
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Full(u32, &'a isize, i16),
Empty
}
struct MoreFieldsRepr<'a> {
a: u32,
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discr: &'a isize,
b: i16
}
enum NamedFields<'a> {
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Droid { id: i32, range: i64, internals: &'a isize },
Void
}
struct NamedFieldsRepr<'a> {
id: i32,
range: i64,
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internals: &'a isize
}
struct NestedNonZeroField<'a> {
a: u16,
b: u32,
c: &'a char,
}
enum NestedNonZero<'a> {
Yep(f64, NestedNonZeroField<'a>),
Nope
}
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(0x12345678_usize) });
let none: Option<&u32> = None;
let full = MoreFields::Full(454545, unsafe { std::mem::transmute(0x87654321_usize) }, 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(0x43218765_usize) }
};
let void_droid = NamedFields::Void;
let void_droid_gdb: &NamedFieldsRepr = unsafe { std::mem::transmute(&NamedFields::Void) };
let x = 'x';
let nested_non_zero_yep = NestedNonZero::Yep(
10.5,
NestedNonZeroField {
a: 10,
b: 20,
c: &x
});
let nested_non_zero_nope = NestedNonZero::Nope;
zzz(); // #break
}
fn zzz() {()}