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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 _m
: Vec
<syntax
::tokenstream
::TokenTree
> = quote_matcher
!(cx
, $
($foo
:tt
,)* bar
);
41 let _n
: syntax
::ast
::Attribute
= quote_attr
!(cx
, #![cfg(foo, bar = "baz")]);
43 let _o
: Option
<P
<syntax
::ast
::Item
>> = quote_item
!(cx
, fn foo
<T
: ?Sized
>() {}
);
46 quote_stmt
!(cx
, let x
= 1;).unwrap(),
47 quote_stmt
!(cx
, let y
= 2;).unwrap(),
49 let expr
: P
<syntax
::ast
::Expr
> = quote_expr
!(cx
, x
+ y
);