43 lines
872 B
Rust
43 lines
872 B
Rust
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// Copyright 2017 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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#![feature(decl_macro)]
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mod foo {
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struct S;
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impl S {
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fn f(&self) {}
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}
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pub macro m() {
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let _: () = S.f();
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}
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}
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struct S;
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macro m($f:ident) {
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impl S {
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fn f(&self) -> u32 { 0 }
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fn $f(&self) -> i32 { 0 }
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}
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fn f() {
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let _: u32 = S.f();
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let _: i32 = S.$f();
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}
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}
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m!(f);
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fn main() {
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let _: i32 = S.f();
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foo::m!();
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}
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