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Avoid unused variable warning in quote_*!

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The provided span isn't used in all cases (namely primitives).
This commit is contained in:
Steven Fackler 2014-01-18 23:00:50 -08:00
parent bf07c80838
commit dac3c53ee1
2 changed files with 26 additions and 2 deletions
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4
src/libsyntax/ext/quote.rs
View File

@ -530,7 +530,7 @@ fn mk_tt(cx: &ExtCtxt, sp: Span, tt: &ast::TokenTree) -> ~[@ast::Stmt] {
match *tt {
ast::TTTok(sp, ref tok) => {
let e_sp = cx.expr_ident(sp, id_ext("sp"));
let e_sp = cx.expr_ident(sp, id_ext("_sp"));
let e_tok = cx.expr_call_ident(sp,
id_ext("TTTok"),
~[e_sp, mk_token(cx, sp, tok)]);
@ -628,7 +628,7 @@ fn expand_tts(cx: &ExtCtxt, sp: Span, tts: &[ast::TokenTree])
~[]);
let stmt_let_sp = cx.stmt_let(sp, false,
id_ext("sp"),
id_ext("_sp"),
e_sp);
let stmt_let_tt = cx.stmt_let(sp, true,

24
src/test/run-pass-fulldeps/quote-unused-sp-no-warning.rs Normal file
View File

@ -0,0 +1,24 @@
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// xfail-fast
#[deny(unused_variable)];
extern mod syntax;
use syntax::ext::base::ExtCtxt;
fn test(cx: &mut ExtCtxt) {
let foo = 10i;
let _e = quote_expr!(cx, $foo);
}
pub fn main() { }