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Fix ui pattern_types test for big-endian platforms #138885

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Merged
merged 1 commit into from
Mar 26, 2025
Merged

Fix ui pattern_types test for big-endian platforms #138885

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2 changes: 2 additions & 0 deletions tests/ui/type/pattern_types/validity.rs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
//! Check that pattern types have their validity checked
// Strip out raw byte dumps to make tests platform-independent:
//@ normalize-stderr: "([[:xdigit:]]{2}\s){4,8}\s+│\s.{4,8}" -> "HEX_DUMP"

#![feature(pattern_types, const_trait_impl, pattern_type_range_trait)]
#![feature(pattern_type_macro)]
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26 changes: 13 additions & 13 deletions tests/ui/type/pattern_types/validity.stderr
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Original file line number Diff line number Diff line change
@@ -1,22 +1,22 @@
error[E0080]: it is undefined behavior to use this value
--> $DIR/validity.rs:8:1
--> $DIR/validity.rs:10:1
|
LL | const BAD: pattern_type!(u32 is 1..) = unsafe { std::mem::transmute(0) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0, but expected something greater or equal to 1
|
= 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.
= note: the raw bytes of the constant (size: 4, align: 4) {
00 00 00 00 │ ....
HEX_DUMP
}

error[E0080]: evaluation of constant value failed
--> $DIR/validity.rs:11:1
--> $DIR/validity.rs:13:1
|
LL | const BAD_UNINIT: pattern_type!(u32 is 1..) =
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory

error[E0080]: evaluation of constant value failed
--> $DIR/validity.rs:15:1
--> $DIR/validity.rs:17:1
|
LL | const BAD_PTR: pattern_type!(usize is 1..) = unsafe { std::mem::transmute(&42) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into integer
Expand All @@ -25,53 +25,53 @@ LL | const BAD_PTR: pattern_type!(usize is 1..) = unsafe { std::mem::transmute(&
= help: the absolute address of a pointer is not known at compile-time, so such operations are not supported

error[E0080]: it is undefined behavior to use this value
--> $DIR/validity.rs:18:1
--> $DIR/validity.rs:20:1
|
LL | const BAD_AGGREGATE: (pattern_type!(u32 is 1..), u32) = (unsafe { std::mem::transmute(0) }, 0);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered 0, but expected something greater or equal to 1
|
= 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.
= note: the raw bytes of the constant (size: 8, align: 4) {
00 00 00 00 00 00 00 00 │ ........
HEX_DUMP
}

error[E0080]: it is undefined behavior to use this value
--> $DIR/validity.rs:24:1
--> $DIR/validity.rs:26:1
|
LL | const BAD_FOO: Foo = Foo(Bar(unsafe { std::mem::transmute(0) }));
| ^^^^^^^^^^^^^^^^^^ constructing invalid value at .0.0: encountered 0, but expected something greater or equal to 1
|
= 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.
= note: the raw bytes of the constant (size: 4, align: 4) {
00 00 00 00 │ ....
HEX_DUMP
}

error[E0080]: evaluation of constant value failed
--> $DIR/validity.rs:27:1
--> $DIR/validity.rs:29:1
|
LL | const CHAR_UNINIT: pattern_type!(char is 'A'..'Z') =
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory

error[E0080]: it is undefined behavior to use this value
--> $DIR/validity.rs:31:1
--> $DIR/validity.rs:33:1
|
LL | const CHAR_OOB_PAT: pattern_type!(char is 'A'..'Z') = unsafe { std::mem::transmute('a') };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 97, but expected something in the range 65..=89
|
= 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.
= note: the raw bytes of the constant (size: 4, align: 4) {
61 00 00 00 │ a...
HEX_DUMP
}

error[E0080]: it is undefined behavior to use this value
--> $DIR/validity.rs:34:1
--> $DIR/validity.rs:36:1
|
LL | const CHAR_OOB: pattern_type!(char is 'A'..'Z') = unsafe { std::mem::transmute(u32::MAX) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0xffffffff, but expected a valid unicode scalar value (in `0..=0x10FFFF` but not in `0xD800..=0xDFFF`)
|
= 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.
= note: the raw bytes of the constant (size: 4, align: 4) {
ff ff ff ff │ ....
HEX_DUMP
}

error: aborting due to 8 previous errors
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