6bdfb05347
The "hint" mechanism is essentially used as a workaround to compute types for expressions which have not yet been type-checked. This commit clarifies that usage, and limits the effects to the places where it is currently necessary. Fixes #26210.
66 lines
2.8 KiB
Rust
66 lines
2.8 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![deny(exceeding_bitshifts)]
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#![allow(unused_variables)]
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#![allow(dead_code)]
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#![feature(num_bits_bytes)]
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fn main() {
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let n = 1u8 << 7;
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let n = 1u8 << 8; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u16 << 15;
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let n = 1u16 << 16; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u32 << 31;
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let n = 1u32 << 32; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u64 << 63;
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let n = 1u64 << 64; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i8 << 7;
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let n = 1i8 << 8; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i16 << 15;
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let n = 1i16 << 16; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i32 << 31;
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let n = 1i32 << 32; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i64 << 63;
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let n = 1i64 << 64; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u8 >> 7;
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let n = 1u8 >> 8; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u16 >> 15;
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let n = 1u16 >> 16; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u32 >> 31;
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let n = 1u32 >> 32; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u64 >> 63;
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let n = 1u64 >> 64; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i8 >> 7;
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let n = 1i8 >> 8; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i16 >> 15;
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let n = 1i16 >> 16; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i32 >> 31;
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let n = 1i32 >> 32; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i64 >> 63;
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let n = 1i64 >> 64; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u8;
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let n = n << 7;
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let n = n << 8; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u8 << -8; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1u8 << (4+3);
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let n = 1u8 << (4+4); //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1_isize << std::isize::BITS; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1_usize << std::usize::BITS; //~ ERROR: bitshift exceeds the type's number of bits
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let n = 1i8<<(1isize+-1);
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}
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