47 lines
1.7 KiB
Rust
47 lines
1.7 KiB
Rust
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// Copyright 2016 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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// Ensure constant and array length values are not taken from source
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// code, which wreaks havoc with macros.
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#![feature(associated_consts)]
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macro_rules! make {
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($n:expr) => {
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pub struct S;
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// @has issue_33302/constant.CST.html \
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// '//pre[@class="rust const"]' 'pub const CST: i32 = 4 * 4'
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pub const CST: i32 = ($n * $n);
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// @has issue_33302/static.ST.html \
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// '//pre[@class="rust static"]' 'pub static ST: i32 = 4 * 4'
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pub static ST: i32 = ($n * $n);
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pub trait T<X> {
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fn ignore(_: &X) {}
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const C: X;
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// @has issue_33302/trait.T.html \
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// '//*[@class="rust trait"]' 'const D: i32 = 4 * 4;'
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// @has - '//*[@id="associatedconstant.D"]' 'const D: i32 = 4 * 4'
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const D: i32 = ($n * $n);
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}
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// @has issue_33302/struct.S.html \
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// '//h3[@class="impl"]' 'impl T<[i32; 4 * 4]> for S'
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// @has - '//*[@id="associatedconstant.C"]' 'const C: [i32; 4 * 4] = [0; 4 * 4]'
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// @has - '//*[@id="associatedconstant.D"]' 'const D: i32 = 4 * 4'
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impl T<[i32; ($n * $n)]> for S {
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const C: [i32; ($n * $n)] = [0; ($n * $n)];
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}
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}
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}
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make!(4);
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