diff --git a/src/libproc_macro/lib.rs b/src/libproc_macro/lib.rs
index 41ccd88b4a887..f2936f2bca83d 100644
--- a/src/libproc_macro/lib.rs
+++ b/src/libproc_macro/lib.rs
@@ -254,6 +254,20 @@ impl Span {
         Some(Span(self.0.to(other.0)))
     }
 
+    /// Creates a new span with the same line/column information as `self` but
+    /// that resolves symbols as though it were at `other`.
+    #[unstable(feature = "proc_macro", issue = "38356")]
+    pub fn resolved_at(&self, other: Span) -> Span {
+        Span(self.0.with_ctxt(other.0.ctxt()))
+    }
+
+    /// Creates a new span with the same name resolution behavior as `self` but
+    /// with the line/column information of `other`.
+    #[unstable(feature = "proc_macro", issue = "38356")]
+    pub fn located_at(&self, other: Span) -> Span {
+        other.resolved_at(*self)
+    }
+
     diagnostic_method!(error, Level::Error);
     diagnostic_method!(warning, Level::Warning);
     diagnostic_method!(note, Level::Note);