61 lines
1.4 KiB
Rust
61 lines
1.4 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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fn new_parse_sess() -> parse::parse_sess {
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fail;
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}
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trait fake_ext_ctxt {
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fn session() -> fake_session;
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}
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type fake_options = {cfg: ast::crate_cfg};
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type fake_session = {opts: @fake_options,
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parse_sess: parse::parse_sess};
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impl fake_session: fake_ext_ctxt {
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fn session() -> fake_session {self}
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}
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fn mk_ctxt() -> fake_ext_ctxt {
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let opts : fake_options = {cfg: ~[]};
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{opts: @opts, parse_sess: new_parse_sess()} 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 = #ast{23};
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check_pp(abc, pprust::print_expr, "23");
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let expr3 = #ast{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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