diff options
Diffstat (limited to 'tests/ui/lint/invalid_from_utf8.rs')
-rw-r--r-- | tests/ui/lint/invalid_from_utf8.rs | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/tests/ui/lint/invalid_from_utf8.rs b/tests/ui/lint/invalid_from_utf8.rs new file mode 100644 index 000000000..9c8c63681 --- /dev/null +++ b/tests/ui/lint/invalid_from_utf8.rs @@ -0,0 +1,93 @@ +// check-pass + +#![feature(concat_bytes)] +#![warn(invalid_from_utf8_unchecked)] +#![warn(invalid_from_utf8)] + +pub fn from_utf8_unchecked_mut() { + // Valid + unsafe { + std::str::from_utf8_unchecked_mut(&mut [99, 108, 105, 112, 112, 121]); + std::str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'i', b'p', b'p', b'y']); + + let x = 0xA0; + std::str::from_utf8_unchecked_mut(&mut [0xC0, x]); + } + + // Invalid + unsafe { + std::str::from_utf8_unchecked_mut(&mut [99, 108, 130, 105, 112, 112, 121]); + //~^ WARN calls to `std::str::from_utf8_unchecked_mut` + std::str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); + //~^ WARN calls to `std::str::from_utf8_unchecked_mut` + } +} + +pub fn from_utf8_unchecked() { + // Valid + unsafe { + std::str::from_utf8_unchecked(&[99, 108, 105, 112, 112, 121]); + std::str::from_utf8_unchecked(&[b'c', b'l', b'i', b'p', b'p', b'y']); + std::str::from_utf8_unchecked(b"clippy"); + + let x = 0xA0; + std::str::from_utf8_unchecked(&[0xC0, x]); + } + + // Invalid + unsafe { + std::str::from_utf8_unchecked(&[99, 108, 130, 105, 112, 112, 121]); + //~^ WARN calls to `std::str::from_utf8_unchecked` + std::str::from_utf8_unchecked(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); + //~^ WARN calls to `std::str::from_utf8_unchecked` + std::str::from_utf8_unchecked(b"cl\x82ippy"); + //~^ WARN calls to `std::str::from_utf8_unchecked` + std::str::from_utf8_unchecked(concat_bytes!(b"cl", b"\x82ippy")); + //~^ WARN calls to `std::str::from_utf8_unchecked` + } +} + +pub fn from_utf8_mut() { + // Valid + { + std::str::from_utf8_mut(&mut [99, 108, 105, 112, 112, 121]); + std::str::from_utf8_mut(&mut [b'c', b'l', b'i', b'p', b'p', b'y']); + + let x = 0xa0; + std::str::from_utf8_mut(&mut [0xc0, x]); + } + + // Invalid + { + std::str::from_utf8_mut(&mut [99, 108, 130, 105, 112, 112, 121]); + //~^ WARN calls to `std::str::from_utf8_mut` + std::str::from_utf8_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); + //~^ WARN calls to `std::str::from_utf8_mut` + } +} + +pub fn from_utf8() { + // Valid + { + std::str::from_utf8(&[99, 108, 105, 112, 112, 121]); + std::str::from_utf8(&[b'c', b'l', b'i', b'p', b'p', b'y']); + std::str::from_utf8(b"clippy"); + + let x = 0xA0; + std::str::from_utf8(&[0xC0, x]); + } + + // Invalid + { + std::str::from_utf8(&[99, 108, 130, 105, 112, 112, 121]); + //~^ WARN calls to `std::str::from_utf8` + std::str::from_utf8(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); + //~^ WARN calls to `std::str::from_utf8` + std::str::from_utf8(b"cl\x82ippy"); + //~^ WARN calls to `std::str::from_utf8` + std::str::from_utf8(concat_bytes!(b"cl", b"\x82ippy")); + //~^ WARN calls to `std::str::from_utf8` + } +} + +fn main() {} |