Emit unused externs

2020-06-30 18:58:15 +02:00
parent 76c500ec6c
commit aef1e35edc
4 changed files with 34 additions and 0 deletions
--- a/compiler/rustc_errors/src/emitter.rs
+++ b/compiler/rustc_errors/src/emitter.rs
@@ -195,6 +195,9 @@ pub trait Emitter {

    fn emit_future_breakage_report(&mut self, _diags: Vec<(FutureBreakage, Diagnostic)>) {}

+    /// Emit list of unused externs
+    fn emit_unused_externs(&mut self, _unused_externs: &[&str]) {}
+
    /// Checks if should show explanations about "rustc --explain"
    fn should_show_explain(&self) -> bool {
        true