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miri: validity visitor comments and path printing improvements

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This commit is contained in:
Ralf Jung 2020-02-26 12:00:33 +01:00
parent dc92ad4d5b
commit 12054dce9a
3 changed files with 47 additions and 24 deletions
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2
src/test/ui/consts/const-eval/ub-enum.stderr
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@ -66,7 +66,7 @@ error[E0080]: it is undefined behavior to use this value
--> $DIR/ub-enum.rs:71:1
|
LL | const BAD_OPTION_CHAR: Option<(char, char)> = Some(('x', unsafe { TransmuteChar { a: !0 }.b }));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered 4294967295 at .<downcast-variant(Some)>.0.1, but expected a valid unicode codepoint
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ type validation failed: encountered 4294967295 at .<enum-variant(Some)>.0.1, but expected a valid unicode codepoint
|
= note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.

2
src/test/ui/consts/const-eval/ub-upvars.stderr
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@ -6,7 +6,7 @@ LL | | let bad_ref: &'static u16 = unsafe { mem::transmute(0usize) };
LL | | let another_var = 13;
LL | | move || { let _ = bad_ref; let _ = another_var; }
LL | | };
| |__^ type validation failed: encountered a NULL reference at .<deref>.<dyn-downcast>.<closure-var(bad_ref)>
| |__^ type validation failed: encountered a NULL reference at .<deref>.<dyn-downcast>.<captured-var(bad_ref)>
|
= note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.