mirror of https://github.com/rust-lang/rust
120 lines
4.0 KiB
Rust
120 lines
4.0 KiB
Rust
//@ check-pass
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#![feature(concat_bytes)]
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#![warn(invalid_from_utf8_unchecked)]
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#![warn(invalid_from_utf8)]
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pub fn from_utf8_unchecked_mut() {
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// Valid
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unsafe {
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std::str::from_utf8_unchecked_mut(&mut [99, 108, 105, 112, 112, 121]);
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std::str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'i', b'p', b'p', b'y']);
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let x = 0xA0;
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std::str::from_utf8_unchecked_mut(&mut [0xC0, x]);
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}
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// Invalid
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unsafe {
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std::str::from_utf8_unchecked_mut(&mut [99, 108, 130, 105, 112, 112, 121]);
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//~^ WARN calls to `std::str::from_utf8_unchecked_mut`
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std::str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']);
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//~^ WARN calls to `std::str::from_utf8_unchecked_mut`
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}
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}
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pub fn from_utf8_unchecked() {
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// Valid
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unsafe {
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std::str::from_utf8_unchecked(&[99, 108, 105, 112, 112, 121]);
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std::str::from_utf8_unchecked(&[b'c', b'l', b'i', b'p', b'p', b'y']);
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std::str::from_utf8_unchecked(b"clippy");
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let x = 0xA0;
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std::str::from_utf8_unchecked(&[0xC0, x]);
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}
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// Invalid
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unsafe {
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std::str::from_utf8_unchecked(&[99, 108, 130, 105, 112, 112, 121]);
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//~^ WARN calls to `std::str::from_utf8_unchecked`
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std::str::from_utf8_unchecked(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']);
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//~^ WARN calls to `std::str::from_utf8_unchecked`
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std::str::from_utf8_unchecked(b"cl\x82ippy");
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//~^ WARN calls to `std::str::from_utf8_unchecked`
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std::str::from_utf8_unchecked(concat_bytes!(b"cl", b"\x82ippy"));
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//~^ WARN calls to `std::str::from_utf8_unchecked`
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}
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}
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pub fn from_utf8_mut() {
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// Valid
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{
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std::str::from_utf8_mut(&mut [99, 108, 105, 112, 112, 121]);
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std::str::from_utf8_mut(&mut [b'c', b'l', b'i', b'p', b'p', b'y']);
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let x = 0xa0;
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std::str::from_utf8_mut(&mut [0xc0, x]);
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}
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// Invalid
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{
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std::str::from_utf8_mut(&mut [99, 108, 130, 105, 112, 112, 121]);
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//~^ WARN calls to `std::str::from_utf8_mut`
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std::str::from_utf8_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']);
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//~^ WARN calls to `std::str::from_utf8_mut`
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}
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}
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pub fn from_utf8() {
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// Valid
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{
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std::str::from_utf8(&[99, 108, 105, 112, 112, 121]);
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std::str::from_utf8(&[b'c', b'l', b'i', b'p', b'p', b'y']);
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std::str::from_utf8(b"clippy");
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let x = 0xA0;
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std::str::from_utf8(&[0xC0, x]);
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}
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// Invalid
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{
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std::str::from_utf8(&[99, 108, 130, 105, 112, 112, 121]);
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//~^ WARN calls to `std::str::from_utf8`
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std::str::from_utf8(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']);
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//~^ WARN calls to `std::str::from_utf8`
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std::str::from_utf8(b"cl\x82ippy");
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//~^ WARN calls to `std::str::from_utf8`
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std::str::from_utf8(concat_bytes!(b"cl", b"\x82ippy"));
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//~^ WARN calls to `std::str::from_utf8`
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}
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}
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pub fn from_utf8_with_indirections() {
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let mut a = [99, 108, 130, 105, 112, 112, 121];
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std::str::from_utf8_mut(&mut a);
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//~^ WARN calls to `std::str::from_utf8_mut`
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let mut b = &mut a;
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let mut c = b;
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std::str::from_utf8_mut(c);
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//~^ WARN calls to `std::str::from_utf8_mut`
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let mut c = &[99, 108, 130, 105, 112, 112, 121];
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std::str::from_utf8(c);
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//~^ WARN calls to `std::str::from_utf8`
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const INVALID_1: [u8; 7] = [99, 108, 130, 105, 112, 112, 121];
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std::str::from_utf8(&INVALID_1);
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//~^ WARN calls to `std::str::from_utf8`
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static INVALID_2: [u8; 7] = [99, 108, 130, 105, 112, 112, 121];
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std::str::from_utf8(&INVALID_2);
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//~^ WARN calls to `std::str::from_utf8`
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const INVALID_3: &'static [u8; 7] = &[99, 108, 130, 105, 112, 112, 121];
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std::str::from_utf8(INVALID_3);
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//~^ WARN calls to `std::str::from_utf8`
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const INVALID_4: &'static [u8; 7] = { &[99, 108, 130, 105, 112, 112, 121] };
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std::str::from_utf8(INVALID_4);
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//~^ WARN calls to `std::str::from_utf8`
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}
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fn main() {}
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