Tests

src/librustc_driver/driver.rs

@@ -1185,6 +1185,9 @@ pub fn collect_crate_types(session: &Session, attrs: &[ast::Attribute]) -> Vec<c
                          Some(ref n) if *n == "rlib" => {
                              Some(config::CrateTypeRlib)
                          }
+                         Some(ref n) if *n == "metadata" => {
+                             Some(config::CrateTypeMetadata)
+                         }
                          Some(ref n) if *n == "dylib" => {
                              Some(config::CrateTypeDylib)
                          }

src/test/compile-fail/auxiliary/rmeta_meta.rs

@@ -0,0 +1,17 @@
+// Copyright 2016 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.
+
+// no-prefer-dynamic
+
+#![crate_type="metadata"]
+
+pub struct Foo {
+    pub field: i32,
+}

src/test/compile-fail/auxiliary/rmeta_rlib.rs

@@ -0,0 +1,15 @@
+// Copyright 2016 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.
+
+#![crate_type="rlib"]
+
+pub struct Foo {
+    pub field: i32,
+}

src/test/compile-fail/rmeta-lib-pass.rs

@@ -0,0 +1,25 @@
+// Copyright 2016 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.
+
+// aux-build:rmeta_rlib.rs
+// no-prefer-dynamic
+// must-compile-successfully
+
+// Check that building a metadata crate works with a dependent, rlib crate.
+// This is a cfail test since there is no executable to run.
+
+#![crate_type="metadata"]
+
+extern crate rmeta_rlib;
+use rmeta_rlib::Foo;
+
+pub fn main() {
+    let _ = Foo { field: 42 };
+}

src/test/compile-fail/rmeta-pass.rs

@@ -0,0 +1,26 @@
+// Copyright 2016 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.
+
+// aux-build:rmeta_meta.rs
+// no-prefer-dynamic
+// must-compile-successfully
+
+// Check that building a metadata crate works with a dependent, metadata-only
+// crate.
+// This is a cfail test since there is no executable to run.
+
+#![crate_type="metadata"]
+
+extern crate rmeta_meta;
+use rmeta_meta::Foo;
+
+pub fn main() {
+    let _ = Foo { field: 42 };
+}

src/test/compile-fail/rmeta.rs

@@ -0,0 +1,19 @@
+// Copyright 2016 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.
+
+// no-prefer-dynamic
+
+// Check that building a metadata crate finds an error.
+
+#![crate_type="metadata"]
+
+fn main() {
+    let _ = Foo; //~ ERROR unresolved name `Foo`
+}

src/test/compile-fail/rmeta_lib.rs

@@ -0,0 +1,23 @@
+// Copyright 2016 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.
+
+// aux-build:rmeta_meta.rs
+// no-prefer-dynamic
+// error-pattern: crate `rmeta_meta` required to be available in rlib, but it was not available
+
+// Check that building a non-metadata crate fails if a dependent crate is
+// metadata-only.
+
+extern crate rmeta_meta;
+use rmeta_meta::Foo;
+
+fn main() {
+    let _ = Foo { field: 42 };
+}

src/test/compile-fail/rmeta_meta_main.rs

@@ -0,0 +1,24 @@
+// Copyright 2016 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.
+
+// aux-build:rmeta_meta.rs
+// no-prefer-dynamic
+
+// Check that building a metadata crate finds an error with a dependent,
+// metadata-only crate.
+
+#![crate_type="metadata"]
+
+extern crate rmeta_meta;
+use rmeta_meta::Foo;
+
+fn main() {
+    let _ = Foo { field2: 42 }; //~ ERROR struct `rmeta_meta::Foo` has no field named `field2`
+}

src/tools/compiletest/src/runtest.rs

@@ -396,8 +396,7 @@ actual:\n\
 
         // FIXME (#9639): This needs to handle non-utf8 paths
         let mut args = vec!["-".to_owned(),
-                            "--emit".to_owned(),
-                            "metadata".to_owned(),
+                            "-Zno-trans".to_owned(),
                             "--out-dir".to_owned(),
                             out_dir.to_str().unwrap().to_owned(),
                             format!("--target={}", target),