37c569627c
Refactor constant evaluation to use a single error reporting function that reports a type-error-like message. Also, unify all error codes with the "constant evaluation error" message to just E0080, and similarly for a few other duplicate codes. The old situation was a total mess, and now that we have *something* we can further iterate on the UX.
50 lines
1.5 KiB
Rust
50 lines
1.5 KiB
Rust
// Copyright 2013 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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#[repr(u8)]
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enum Eu8 {
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Au8 = 23,
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Bu8 = 223,
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Cu8 = -23, //~ ERROR E0080
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//~| unary negation of unsigned integer
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}
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#[repr(u16)]
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enum Eu16 {
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Au16 = 23,
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Bu16 = 55555,
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Cu16 = -22333, //~ ERROR E0080
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//~| unary negation of unsigned integer
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}
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#[repr(u32)]
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enum Eu32 {
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Au32 = 23,
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Bu32 = 3_000_000_000,
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Cu32 = -2_000_000_000, //~ ERROR E0080
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//~| unary negation of unsigned integer
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}
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#[repr(u64)]
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enum Eu64 {
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Au32 = 23,
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Bu32 = 3_000_000_000,
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Cu32 = -2_000_000_000, //~ ERROR E0080
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//~| unary negation of unsigned integer
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}
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// u64 currently allows negative numbers, and i64 allows numbers greater than `1<<63`. This is a
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// little counterintuitive, but since the discriminant can store all the bits, and extracting it
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// with a cast requires specifying the signedness, there is no loss of information in those cases.
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// This also applies to isize and usize on 64-bit targets.
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pub fn main() { }
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