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.
11 // ignore-cross-compile
12 #![feature(quote, rustc_private)]
16 use syntax::ext::base::ExtCtxt;
18 use syntax::parse::PResult;
20 fn syntax_extension(cx: &ExtCtxt) {
21 let e_toks : Vec<syntax::tokenstream::TokenTree> = quote_tokens!(cx, 1 + 2);
22 let p_toks : Vec<syntax::tokenstream::TokenTree> = quote_tokens!(cx, (x, 1 .. 4, *));
24 let a: P<syntax::ast::Expr> = quote_expr!(cx, 1 + 2);
25 let _b: Option<P<syntax::ast::Item>> = quote_item!(cx, static foo : isize = $e_toks; );
26 let _c: P<syntax::ast::Pat> = quote_pat!(cx, (x, 1 .. 4, *) );
27 let _d: Option<syntax::ast::Stmt> = quote_stmt!(cx, let x = $a; );
28 let _d: syntax::ast::Arm = quote_arm!(cx, (ref x, ref y) = (x, y) );
29 let _e: P<syntax::ast::Expr> = quote_expr!(cx, match foo { $p_toks => 10 } );
31 let _f: P<syntax::ast::Expr> = quote_expr!(cx, ());
32 let _g: P<syntax::ast::Expr> = quote_expr!(cx, true);
33 let _h: P<syntax::ast::Expr> = quote_expr!(cx, 'a');
35 let i: Option<P<syntax::ast::Item>> = quote_item!(cx, #[derive(Eq)] struct Foo; );
38 let _l: P<syntax::ast::Ty> = quote_ty!(cx, &isize);
40 let _n: syntax::ast::Attribute = quote_attr!(cx, #![cfg(foo, bar = "baz")]);
42 let _o: Option<P<syntax::ast::Item>> = quote_item!(cx, fn foo<T: ?Sized>() {});
45 quote_stmt!(cx, let x = 1;).unwrap(),
46 quote_stmt!(cx, let y = 2;).unwrap(),
48 let expr: P<syntax::ast::Expr> = quote_expr!(cx, x + y);