Remove unnecessary dummy span checks

The emitter already verifies wether a given span note or span label
can be emitted to the output. If it can't, because it is a dummy
span, it will be either elided for labels or emitted as an unspanned
note/help when applicable.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/libsyntax_pos/lib.rs b/src/libsyntax_pos/lib.rs
index 6a41a93f0b4..240b86d142a 100644
--- a/src/libsyntax_pos/lib.rs
+++ b/src/libsyntax_pos/lib.rs
@@ -668,6 +668,11 @@ impl MultiSpan {
         &self.primary_spans
     }
 
+    /// Returns wether any of the primary spans is displayable.
+    pub fn has_primary_spans(&self) -> bool {
+        self.primary_spans.iter().any(|sp| *sp != DUMMY_SP)
+    }
+
     /// Returns `true` if this contains only a dummy primary span with any hygienic context.
     pub fn is_dummy(&self) -> bool {
         let mut is_dummy = true;
@@ -726,6 +731,11 @@ impl MultiSpan {
 
         span_labels
     }
+
+    /// Returns wether any of the span labels is displayable.
+    pub fn has_span_labels(&self) -> bool {
+        self.span_labels.iter().any(|(sp, _)| *sp != DUMMY_SP)
+    }
 }
 
 impl From<Span> for MultiSpan {