69 lines
1.6 KiB
Rust
69 lines
1.6 KiB
Rust
// Copyright 2012 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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// xfail-test Can't use syntax crate here
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extern mod std;
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extern mod syntax;
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use io::*;
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use syntax::diagnostic;
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use syntax::ast;
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use syntax::codemap;
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use syntax::parse;
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use syntax::print::*;
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trait fake_ext_ctxt {
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fn cfg() -> ast::crate_cfg;
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fn parse_sess() -> parse::parse_sess;
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fn call_site() -> span;
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fn ident_of(st: ~str) -> ast::ident;
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}
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type fake_session = parse::parse_sess;
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impl fake_session: fake_ext_ctxt {
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fn cfg() -> ast::crate_cfg { ~[] }
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fn parse_sess() -> parse::parse_sess { self }
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fn call_site() -> span {
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codemap::span {
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lo: codemap::BytePos(0),
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hi: codemap::BytePos(0),
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expn_info: None
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}
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}
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fn ident_of(st: ~str) -> ast::ident {
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self.interner.intern(@st)
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}
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}
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fn mk_ctxt() -> fake_ext_ctxt {
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parse::new_parse_sess(None) as fake_ext_ctxt
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}
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fn main() {
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let ext_cx = mk_ctxt();
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let abc = quote_expr!(23);
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check_pp(abc, pprust::print_expr, "23");
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let expr3 = quote_expr!(2 - $abcd + 7); //~ ERROR unresolved name: abcd
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check_pp(expr3, pprust::print_expr, "2 - 23 + 7");
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}
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fn check_pp<T>(expr: T, f: fn(pprust::ps, T), expect: str) {
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fail;
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}
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