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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/borrowck/borrowck-reborrow-from-mut.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/borrowck/borrowck-reborrow-from-mut.rs')
-rw-r--r-- | tests/ui/borrowck/borrowck-reborrow-from-mut.rs | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/tests/ui/borrowck/borrowck-reborrow-from-mut.rs b/tests/ui/borrowck/borrowck-reborrow-from-mut.rs new file mode 100644 index 000000000..eef83c5ac --- /dev/null +++ b/tests/ui/borrowck/borrowck-reborrow-from-mut.rs @@ -0,0 +1,99 @@ +struct Foo { + bar1: Bar, + bar2: Bar +} + +struct Bar { + int1: isize, + int2: isize, +} + +fn borrow_same_field_twice_mut_mut(foo: &mut Foo) { + let _bar1 = &mut foo.bar1; + let _bar2 = &mut foo.bar1; //~ ERROR cannot borrow + use_mut(_bar1); +} +fn borrow_same_field_twice_mut_imm(foo: &mut Foo) { + let _bar1 = &mut foo.bar1; + let _bar2 = &foo.bar1; //~ ERROR cannot borrow + use_mut(_bar1); +} +fn borrow_same_field_twice_imm_mut(foo: &mut Foo) { + let _bar1 = &foo.bar1; + let _bar2 = &mut foo.bar1; //~ ERROR cannot borrow + use_imm(_bar1); +} +fn borrow_same_field_twice_imm_imm(foo: &mut Foo) { + let _bar1 = &foo.bar1; + let _bar2 = &foo.bar1; + use_imm(_bar1); +} +fn borrow_both_mut(foo: &mut Foo) { + let _bar1 = &mut foo.bar1; + let _bar2 = &mut foo.bar2; + use_mut(_bar1); +} +fn borrow_both_mut_pattern(foo: &mut Foo) { + match *foo { + Foo { bar1: ref mut _bar1, bar2: ref mut _bar2 } => + { use_mut(_bar1); use_mut(_bar2); } + } +} +fn borrow_var_and_pattern(foo: &mut Foo) { + let _bar1 = &mut foo.bar1; + match *foo { + Foo { bar1: ref mut _bar1, bar2: _ } => {} + //~^ ERROR cannot borrow + } + use_mut(_bar1); +} +fn borrow_mut_and_base_imm(foo: &mut Foo) { + let _bar1 = &mut foo.bar1.int1; + let _foo1 = &foo.bar1; //~ ERROR cannot borrow + let _foo2 = &*foo; //~ ERROR cannot borrow + use_mut(_bar1); +} +fn borrow_mut_and_base_mut(foo: &mut Foo) { + let _bar1 = &mut foo.bar1.int1; + let _foo1 = &mut foo.bar1; //~ ERROR cannot borrow + use_mut(_bar1); +} +fn borrow_mut_and_base_mut2(foo: &mut Foo) { + let _bar1 = &mut foo.bar1.int1; + let _foo2 = &mut *foo; //~ ERROR cannot borrow + use_mut(_bar1); +} +fn borrow_imm_and_base_mut(foo: &mut Foo) { + let _bar1 = &foo.bar1.int1; + let _foo1 = &mut foo.bar1; //~ ERROR cannot borrow + use_imm(_bar1); +} +fn borrow_imm_and_base_mut2(foo: &mut Foo) { + let _bar1 = &foo.bar1.int1; + let _foo2 = &mut *foo; //~ ERROR cannot borrow + use_imm(_bar1); +} +fn borrow_imm_and_base_imm(foo: &mut Foo) { + let _bar1 = &foo.bar1.int1; + let _foo1 = &foo.bar1; + let _foo2 = &*foo; + use_imm(_bar1); +} +fn borrow_mut_and_imm(foo: &mut Foo) { + let _bar1 = &mut foo.bar1; + let _foo1 = &foo.bar2; + use_mut(_bar1); +} +fn borrow_mut_from_imm(foo: &Foo) { + let _bar1 = &mut foo.bar1; //~ ERROR cannot borrow +} + +fn borrow_long_path_both_mut(foo: &mut Foo) { + let _bar1 = &mut foo.bar1.int1; + let _foo1 = &mut foo.bar2.int2; + use_mut(_bar1); +} +fn main() {} + +fn use_mut<T>(_: &mut T) { } +fn use_imm<T>(_: &T) { } |