91 lines
2.3 KiB
Rust
91 lines
2.3 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-pretty
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#[legacy_modes];
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extern mod std;
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extern mod syntax;
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use core::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::codemap::span;
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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(@copy 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(ext_cx, abc, pprust::print_expr, ~"23");
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let ty = quote_ty!(int);
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check_pp(ext_cx, ty, pprust::print_type, ~"int");
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let item = quote_item!(const x : int = 10;).get();
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check_pp(ext_cx, item, pprust::print_item, ~"const x: int = 10;");
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let stmt = quote_stmt!(let x = 20;);
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check_pp(ext_cx, *stmt, pprust::print_stmt, ~"let x = 20;");
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let pat = quote_pat!(some(_));
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check_pp(ext_cx, pat, pprust::print_refutable_pat, ~"some(_)");
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}
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fn check_pp<T>(cx: fake_ext_ctxt,
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expr: T, f: fn(pprust::ps, T), expect: ~str) {
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let s = do io::with_str_writer |wr| {
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let pp = pprust::rust_printer(wr, cx.parse_sess().interner);
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f(pp, expr);
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pp::eof(pp.s);
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};
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stdout().write_line(s);
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if expect != ~"" {
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error!("expect: '%s', got: '%s'", expect, s);
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assert s == expect;
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}
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}
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