Fix crash on invalid switch expression

Fixes bug 626397.

diff --git a/vala/valaswitchstatement.vala b/vala/valaswitchstatement.vala
index 1fbcb164900b440538a90e6df569e8fdfcf0a4ff..c2066c51cedcf2234e06de5e079b4f6dc43f805f 100644 (file)
--- a/vala/valaswitchstatement.vala
+++ b/vala/valaswitchstatement.vala
@@ -105,9 +105,10 @@ public class Vala.SwitchStatement : CodeNode, Statement {
                        return false;
                }
 
-               if (!(expression.value_type is IntegerType)
-                   && !(expression.value_type is EnumValueType)
-                   && !expression.value_type.compatible (analyzer.string_type)) {
+               if (expression.value_type == null ||
+                   (!(expression.value_type is IntegerType) &&
+                    !(expression.value_type is EnumValueType) &&
+                    !expression.value_type.compatible (analyzer.string_type))) {
                        Report.error (expression.source_reference, "Integer or string expression expected");
                        error = true;
                        return false;