Rollup merge of rust-lang#24718 - tamird:fix-quote-tests, r=alexcrichton

Sniped from @rprichard's work in rust-lang#24537. r? @alexcrichton

Author: steveklabnik

src/librustc/middle/astencode.rs

@@ -1835,29 +1835,31 @@ fn decode_item_ast(par_doc: rbml::Doc) -> ast::Item {
 }
 
 #[cfg(test)]
-trait fake_ext_ctxt {
+trait FakeExtCtxt {
+    fn call_site(&self) -> codemap::Span;
     fn cfg(&self) -> ast::CrateConfig;
-    fn parse_sess<'a>(&'a self) -> &'a parse::ParseSess;
-    fn call_site(&self) -> Span;
     fn ident_of(&self, st: &str) -> ast::Ident;
+    fn name_of(&self, st: &str) -> ast::Name;
+    fn parse_sess(&self) -> &parse::ParseSess;
 }
 
 #[cfg(test)]
-impl fake_ext_ctxt for parse::ParseSess {
-    fn cfg(&self) -> ast::CrateConfig {
-        Vec::new()
-    }
-    fn parse_sess<'a>(&'a self) -> &'a parse::ParseSess { self }
-    fn call_site(&self) -> Span {
+impl FakeExtCtxt for parse::ParseSess {
+    fn call_site(&self) -> codemap::Span {
         codemap::Span {
             lo: codemap::BytePos(0),
             hi: codemap::BytePos(0),
-            expn_id: codemap::NO_EXPANSION
+            expn_id: codemap::NO_EXPANSION,
         }
     }
+    fn cfg(&self) -> ast::CrateConfig { Vec::new() }
     fn ident_of(&self, st: &str) -> ast::Ident {
-        token::str_to_ident(st)
+        parse::token::str_to_ident(st)
+    }
+    fn name_of(&self, st: &str) -> ast::Name {
+        parse::token::intern(st)
     }
+    fn parse_sess(&self) -> &parse::ParseSess { self }
 }
 
 #[cfg(test)]
@@ -1883,15 +1885,14 @@ fn test_basic() {
         fn foo() {}
     ));
 }
-/* NOTE: When there's a snapshot, update this (yay quasiquoter!)
+
 #[test]
 fn test_smalltalk() {
     let cx = mk_ctxt();
     roundtrip(quote_item!(&cx,
         fn foo() -> isize { 3 + 4 } // first smalltalk program ever executed.
     ));
 }
-*/
 
 #[test]
 fn test_more() {

src/test/compile-fail-fulldeps/qquote.rs

@@ -0,0 +1,55 @@
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-cross-compile
+
+#![feature(quote, rustc_private)]
+
+extern crate syntax;
+
+use syntax::ast;
+use syntax::codemap;
+use syntax::parse;
+use syntax::print::pprust;
+
+trait FakeExtCtxt {
+    fn call_site(&self) -> codemap::Span;
+    fn cfg(&self) -> ast::CrateConfig;
+    fn ident_of(&self, st: &str) -> ast::Ident;
+    fn name_of(&self, st: &str) -> ast::Name;
+    fn parse_sess(&self) -> &parse::ParseSess;
+}
+
+impl FakeExtCtxt for parse::ParseSess {
+    fn call_site(&self) -> codemap::Span {
+        codemap::Span {
+            lo: codemap::BytePos(0),
+            hi: codemap::BytePos(0),
+            expn_id: codemap::NO_EXPANSION,
+        }
+    }
+    fn cfg(&self) -> ast::CrateConfig { Vec::new() }
+    fn ident_of(&self, st: &str) -> ast::Ident {
+        parse::token::str_to_ident(st)
+    }
+    fn name_of(&self, st: &str) -> ast::Name {
+        parse::token::intern(st)
+    }
+    fn parse_sess(&self) -> &parse::ParseSess { self }
+}
+
+fn main() {
+    let cx = parse::new_parse_sess();
+
+    assert_eq!(pprust::expr_to_string(&*quote_expr!(&cx, 23)), "23");
+
+    let expr = quote_expr!(&cx, 2 - $abcd + 7); //~ ERROR unresolved name: `abcd`
+    assert_eq!(pprust::expr_to_string(&*expr), "2 - $abcd + 7");
+}

src/test/parse-fail/qquote-1.rs

@@ -0,0 +1,57 @@
+// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-cross-compile
+
+// error-pattern:expected identifier, found keyword `let`
+
+#![feature(quote, rustc_private)]
+
+extern crate syntax;
+
+use syntax::ast;
+use syntax::codemap;
+use syntax::parse;
+use syntax::print::pprust;
+
+trait FakeExtCtxt {
+    fn call_site(&self) -> codemap::Span;
+    fn cfg(&self) -> ast::CrateConfig;
+    fn ident_of(&self, st: &str) -> ast::Ident;
+    fn name_of(&self, st: &str) -> ast::Name;
+    fn parse_sess(&self) -> &parse::ParseSess;
+}
+
+impl FakeExtCtxt for parse::ParseSess {
+    fn call_site(&self) -> codemap::Span {
+        codemap::Span {
+            lo: codemap::BytePos(0),
+            hi: codemap::BytePos(0),
+            expn_id: codemap::NO_EXPANSION,
+        }
+    }
+    fn cfg(&self) -> ast::CrateConfig { Vec::new() }
+    fn ident_of(&self, st: &str) -> ast::Ident {
+        parse::token::str_to_ident(st)
+    }
+    fn name_of(&self, st: &str) -> ast::Name {
+        parse::token::intern(st)
+    }
+    fn parse_sess(&self) -> &parse::ParseSess { self }
+}
+
+fn main() {
+    let cx = parse::new_parse_sess();
+
+    assert_eq!(pprust::expr_to_string(&*quote_expr!(&cx, 23)), "23");
+
+    let expr = quote_expr!(&cx, let x isize = 20;);
+    assert_eq!(pprust::expr_to_string(&*expr), "let x isize = 20;");
+}