1 // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
20 use syntax::diagnostic;
23 use syntax::codemap::span;
29 fn cfg() -> ast::CrateConfig;
30 fn parse_sess() -> parse::parse_sess;
31 fn call_site() -> span;
32 fn ident_of(st: &str) -> ast::ident;
35 type fake_session = parse::parse_sess;
37 impl fake_ext_ctxt for fake_session {
38 fn cfg() -> ast::CrateConfig { Vec::new() }
39 fn parse_sess() -> parse::parse_sess { self }
40 fn call_site() -> span {
42 lo: codemap::BytePos(0),
43 hi: codemap::BytePos(0),
47 fn ident_of(st: &str) -> ast::ident {
48 self.interner.intern(st)
52 fn mk_ctxt() -> fake_ext_ctxt {
53 parse::new_parse_sess(None) as fake_ext_ctxt
59 let abc = quote_expr!(cx, 23);
60 check_pp(ext_cx, abc, pprust::print_expr, "23".to_owned());
63 let ty = quote_ty!(cx, int);
64 check_pp(ext_cx, ty, pprust::print_type, "int".to_owned());
66 let item = quote_item!(cx, static x : int = 10;).get();
67 check_pp(ext_cx, item, pprust::print_item, "static x: int = 10;".to_owned());
69 let stmt = quote_stmt!(cx, let x = 20;);
70 check_pp(ext_cx, *stmt, pprust::print_stmt, "let x = 20;".to_owned());
72 let pat = quote_pat!(cx, Some(_));
73 check_pp(ext_cx, pat, pprust::print_pat, "Some(_)".to_owned());
77 fn check_pp<T>(cx: fake_ext_ctxt,
78 expr: T, f: |pprust::ps, T|, expect: ~str) {
79 let s = io::with_str_writer(|wr| {
80 let pp = pprust::rust_printer(wr, cx.parse_sess().interner);
84 stdout().write_line(s);
85 if expect != "".to_owned() {
86 println!("expect: '%s', got: '%s'", expect, s);
87 assert_eq!(s, expect);