1 files changed, 155 insertions, 0 deletions
diff --git a/tests/ui/cfg/conditional-compile.rs b/tests/ui/cfg/conditional-compile.rs
new file mode 100644
index 00000000000..69f4de43186
--- /dev/null
+++ b/tests/ui/cfg/conditional-compile.rs
@@ -0,0 +1,155 @@
+// run-pass
+#![allow(dead_code)]
+#![allow(non_upper_case_globals)]
+#![allow(non_camel_case_types)]
+#![allow(improper_ctypes)]
+
+// Crate use statements
+
+#[cfg(bogus)]
+use flippity;
+
+#[cfg(bogus)]
+static b: bool = false;
+
+static b: bool = true;
+
+mod rustrt {
+    #[cfg(bogus)]
+    extern "C" {
+        // This symbol doesn't exist and would be a link error if this
+        // module was codegened
+        pub fn bogus();
+    }
+
+    extern "C" {}
+}
+
+#[cfg(bogus)]
+type t = isize;
+
+type t = bool;
+
+#[cfg(bogus)]
+enum tg {
+    foo,
+}
+
+enum tg {
+    bar,
+}
+
+#[cfg(bogus)]
+struct r {
+    i: isize,
+}
+
+#[cfg(bogus)]
+fn r(i: isize) -> r {
+    r { i: i }
+}
+
+struct r {
+    i: isize,
+}
+
+fn r(i: isize) -> r {
+    r { i: i }
+}
+
+#[cfg(bogus)]
+mod m {
+    // This needs to parse but would fail in typeck. Since it's not in
+    // the current config it should not be typechecked.
+    pub fn bogus() {
+        return 0;
+    }
+}
+
+mod m {
+    // Submodules have slightly different code paths than the top-level
+    // module, so let's make sure this jazz works here as well
+    #[cfg(bogus)]
+    pub fn f() {}
+
+    pub fn f() {}
+}
+
+// Since the bogus configuration isn't defined main will just be
+// parsed, but nothing further will be done with it
+#[cfg(bogus)]
+pub fn main() {
+    panic!()
+}
+
+pub fn main() {
+    // Exercise some of the configured items in ways that wouldn't be possible
+    // if they had the bogus definition
+    assert!((b));
+    let _x: t = true;
+    let _y: tg = tg::bar;
+
+    test_in_fn_ctxt();
+}
+
+fn test_in_fn_ctxt() {
+    #[cfg(bogus)]
+    fn f() {
+        panic!()
+    }
+    fn f() {}
+    f();
+
+    #[cfg(bogus)]
+    static i: isize = 0;
+    static i: isize = 1;
+    assert_eq!(i, 1);
+}
+
+mod test_foreign_items {
+    pub mod rustrt {
+        extern "C" {
+            #[cfg(bogus)]
+            pub fn write() -> String;
+            pub fn write() -> String;
+        }
+    }
+}
+
+mod test_use_statements {
+    #[cfg(bogus)]
+    use flippity_foo;
+}
+
+mod test_methods {
+    struct Foo {
+        bar: usize,
+    }
+
+    impl Fooable for Foo {
+        #[cfg(bogus)]
+        fn what(&self) {}
+
+        fn what(&self) {}
+
+        #[cfg(bogus)]
+        fn the(&self) {}
+
+        fn the(&self) {}
+    }
+
+    trait Fooable {
+        #[cfg(bogus)]
+        fn what(&self);
+
+        fn what(&self);
+
+        #[cfg(bogus)]
+        fn the(&self);
+
+        fn the(&self);
+    }
+}
+
+#[cfg(any())]
+mod nonexistent_file; // Check that unconfigured non-inline modules are not loaded or parsed.