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Talk about unpredictable instead of "not deterministic"

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This commit is contained in:
Oliver Scherer 2020-09-23 16:38:30 +02:00
parent 1b1b6eabaa
commit d486486afd
5 changed files with 8 additions and 8 deletions
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4
compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs
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@ -413,8 +413,8 @@ impl<'a, 'tcx> ConstToPat<'a, 'tcx> {
ty::FnPtr(..) | ty::RawPtr(..) => {
if self.include_lint_checks && !self.saw_const_match_error.get() {
self.saw_const_match_error.set(true);
let msg = "function pointers and unsized pointers in patterns do not behave \
deterministically. \
let msg = "function pointers and unsized pointers in patterns behave \
unpredictably and should not be relied upon. \
See https://github.com/rust-lang/rust/issues/70861 for details.";
tcx.struct_span_lint_hir(
lint::builtin::POINTER_STRUCTURAL_MATCH,

4
src/test/ui/issues/issue-44333.rs
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@ -16,9 +16,9 @@ const BAR: Func = bar;
fn main() {
match test(std::env::consts::ARCH.len()) {
FOO => println!("foo"), //~ WARN pointers in patterns do not behave deterministically
FOO => println!("foo"), //~ WARN pointers in patterns behave unpredictably
//~^ WARN will become a hard error
BAR => println!("bar"), //~ WARN pointers in patterns do not behave deterministically
BAR => println!("bar"), //~ WARN pointers in patterns behave unpredictably
//~^ WARN will become a hard error
_ => unreachable!(),
}

4
src/test/ui/issues/issue-44333.stderr
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@ -1,4 +1,4 @@
warning: function pointers and unsized pointers in patterns do not behave deterministically. See https://github.com/rust-lang/rust/issues/70861 for details.
warning: function pointers and unsized pointers in patterns behave unpredictably and should not be relied upon. See https://github.com/rust-lang/rust/issues/70861 for details.
--> $DIR/issue-44333.rs:19:9
|
LL | FOO => println!("foo"),
@ -12,7 +12,7 @@ LL | #![warn(pointer_structural_match)]
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #62411 <https://github.com/rust-lang/rust/issues/70861>
warning: function pointers and unsized pointers in patterns do not behave deterministically. See https://github.com/rust-lang/rust/issues/70861 for details.
warning: function pointers and unsized pointers in patterns behave unpredictably and should not be relied upon. See https://github.com/rust-lang/rust/issues/70861 for details.
--> $DIR/issue-44333.rs:21:9
|
LL | BAR => println!("bar"),

2
src/test/ui/rfc1445/issue-63479-match-fnptr.rs
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@ -33,7 +33,7 @@ fn main() {
let s = B(my_fn);
match s {
B(TEST) => println!("matched"),
//~^ WARN pointers in patterns do not behave deterministically
//~^ WARN pointers in patterns behave unpredictably
//~| WARN this was previously accepted by the compiler but is being phased out
_ => panic!("didn't match")
};

2
src/test/ui/rfc1445/issue-63479-match-fnptr.stderr
View File

@ -1,4 +1,4 @@
warning: function pointers and unsized pointers in patterns do not behave deterministically. See https://github.com/rust-lang/rust/issues/70861 for details.
warning: function pointers and unsized pointers in patterns behave unpredictably and should not be relied upon. See https://github.com/rust-lang/rust/issues/70861 for details.
--> $DIR/issue-63479-match-fnptr.rs:35:7
|
LL | B(TEST) => println!("matched"),