vala: CodeNode.source_reference is optional, so let the API respect that

1 files changed, 2 insertions, 2 deletions

diff --git a/vala/valalambdaexpression.vala b/vala/valalambdaexpression.vala
index 9a6940f90..f48f73b9d 100644
--- a/vala/valalambdaexpression.vala
+++ b/vala/valalambdaexpression.vala
@@ -74,7 +74,7 @@ public class Vala.LambdaExpression : Expression {
 	 * @param source_reference reference to source code
 	 * @return                 newly created lambda expression
 	 */
-	public LambdaExpression (Expression expression_body, SourceReference source_reference) {
+	public LambdaExpression (Expression expression_body, SourceReference? source_reference = null) {
 		this.source_reference = source_reference;
 		this.expression_body = expression_body;
 	}
@@ -86,7 +86,7 @@ public class Vala.LambdaExpression : Expression {
 	 * @param source_reference reference to source code
 	 * @return                 newly created lambda expression
 	 */
-	public LambdaExpression.with_statement_body (Block statement_body, SourceReference source_reference) {
+	public LambdaExpression.with_statement_body (Block statement_body, SourceReference? source_reference = null) {
 		this.statement_body = statement_body;
 		this.source_reference = source_reference;
 	}