49 lines
1.8 KiB
Rust
49 lines
1.8 KiB
Rust
// Copyright 2012-2014 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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// ignore-android
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// ignore-pretty: does not work well with `--test`
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#![feature(quote)]
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extern crate syntax;
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use syntax::ext::base::ExtCtxt;
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use syntax::ptr::P;
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fn syntax_extension(cx: &ExtCtxt) {
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let e_toks : Vec<syntax::ast::TokenTree> = quote_tokens!(cx, 1 + 2);
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let p_toks : Vec<syntax::ast::TokenTree> = quote_tokens!(cx, (x, 1 .. 4, *));
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let a: P<syntax::ast::Expr> = quote_expr!(cx, 1 + 2);
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let _b: Option<P<syntax::ast::Item>> = quote_item!(cx, static foo : int = $e_toks; );
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let _c: P<syntax::ast::Pat> = quote_pat!(cx, (x, 1 .. 4, *) );
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let _d: Option<P<syntax::ast::Stmt>> = quote_stmt!(cx, let x = $a; );
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let _d: syntax::ast::Arm = quote_arm!(cx, (ref x, ref y) = (x, y) );
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let _e: P<syntax::ast::Expr> = quote_expr!(cx, match foo { $p_toks => 10 } );
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let _f: P<syntax::ast::Expr> = quote_expr!(cx, ());
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let _g: P<syntax::ast::Expr> = quote_expr!(cx, true);
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let _h: P<syntax::ast::Expr> = quote_expr!(cx, 'a');
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let i: Option<P<syntax::ast::Item>> = quote_item!(cx, #[derive(Eq)] struct Foo; );
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assert!(i.is_some());
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let _l: P<syntax::ast::Ty> = quote_ty!(cx, &int);
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let _m: Vec<syntax::ast::TokenTree> = quote_matcher!(cx, $($foo:tt,)* bar);
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let _n: syntax::ast::Attribute = quote_attr!(cx, #![cfg(foo, bar = "baz")]);
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let _o: Option<P<syntax::ast::Item>> = quote_item!(cx, fn foo<T: ?Sized>() {});
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}
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fn main() {
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}
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