diff --git a/mlir/include/mlir/IR/DialectImplementation.h b/mlir/include/mlir/IR/DialectImplementation.h
--- a/mlir/include/mlir/IR/DialectImplementation.h
+++ b/mlir/include/mlir/IR/DialectImplementation.h
@@ -228,6 +228,14 @@
   /// Parse a `=` token if present.
   virtual ParseResult parseOptionalEqual() = 0;
 
+  /// Parse a quoted string token.
+  ParseResult parseString(StringRef *string) {
+    auto loc = getCurrentLocation();
+    if (parseOptionalString(string))
+      return emitError(loc, "expected string");
+    return success();
+  }
+
   /// Parse a quoted string token if present.
   virtual ParseResult parseOptionalString(StringRef *string) = 0;