Implement initernal lint LINT_PASS_IMPL_WITHOUT_MACRO

2 files changed, 50 insertions, 0 deletions

diff --git a/src/test/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.rs b/src/test/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.rs
new file mode 100644
index 00000000000..92f8e8364a7
--- /dev/null
+++ b/src/test/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.rs
@@ -0,0 +1,35 @@
+// compile-flags: -Z unstable-options
+
+#![feature(rustc_private)]
+#![deny(lint_pass_impl_without_macro)]
+
+extern crate rustc;
+
+use rustc::lint::{LintArray, LintPass};
+use rustc::{declare_lint, declare_lint_pass, impl_lint_pass, lint_array};
+
+declare_lint! {
+    pub TEST_LINT,
+    Allow,
+    "test"
+}
+
+struct Foo;
+
+impl LintPass for Foo { //~ERROR implementing `LintPass` by hand
+    fn get_lints(&self) -> LintArray {
+        lint_array!(TEST_LINT)
+    }
+
+    fn name(&self) -> &'static str {
+        "Foo"
+    }
+}
+
+struct Bar;
+
+impl_lint_pass!(Bar => [TEST_LINT]);
+
+declare_lint_pass!(Baz => [TEST_LINT]);
+
+fn main() {}
diff --git a/src/test/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.stderr b/src/test/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.stderr
new file mode 100644
index 00000000000..9ddd6af472a
--- /dev/null
+++ b/src/test/ui-fulldeps/internal-lints/lint_pass_impl_without_macro.stderr
@@ -0,0 +1,15 @@
+error: implementing `LintPass` by hand
+  --> $DIR/lint_pass_impl_without_macro.rs:19:6
+   |
+LL | impl LintPass for Foo {
+   |      ^^^^^^^^
+   |
+note: lint level defined here
+  --> $DIR/lint_pass_impl_without_macro.rs:4:9
+   |
+LL | #![deny(lint_pass_impl_without_macro)]
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   = help: try using `declare_lint_pass!` or `impl_lint_pass!` instead
+
+error: aborting due to previous error
+