From 3fd128fcc286611d98a1e72a54b8758b7c491847 Mon Sep 17 00:00:00 2001
From: Rico Tzschichholz <ricotz@ubuntu.com>
Date: Sun, 10 Mar 2019 18:14:09 +0100
Subject: [PATCH] vala: Allow assignment of 0U to enum types

Don't restrict unsigned 0 literal to flags-enums though.
---
 tests/Makefile.am               |  1 +
 tests/enums/from-0-literal.vala | 21 +++++++++++++++++++++
 vala/valaintegertype.vala       |  2 +-
 3 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 tests/enums/from-0-literal.vala

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 576e667f3..54392247e 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -155,6 +155,7 @@ TESTS = \
 	enums/enum_only.vala \
 	enums/enums.vala \
 	enums/flags.vala \
+	enums/from-0-literal.vala \
 	enums/bug673879.vala \
 	enums/bug763831.vala \
 	enums/bug780050.vala \
diff --git a/tests/enums/from-0-literal.vala b/tests/enums/from-0-literal.vala
new file mode 100644
index 000000000..7f802588d
--- /dev/null
+++ b/tests/enums/from-0-literal.vala
@@ -0,0 +1,21 @@
+enum Foo {
+	BAR
+}
+
+[Flags]
+enum Bar {
+	FOO
+}
+
+void main () {
+	{
+		Foo foo;
+		foo = 0;
+		foo = 0U;
+	}
+	{
+		Bar bar;
+		bar = 0;
+		bar = 0U;
+	}
+}
diff --git a/vala/valaintegertype.vala b/vala/valaintegertype.vala
index 53845455a..274fe4716 100644
--- a/vala/valaintegertype.vala
+++ b/vala/valaintegertype.vala
@@ -59,7 +59,7 @@ public class Vala.IntegerType : ValueType {
 					return true;
 				}
 			}
-		} else if (target_type.data_type is Enum && literal_type_name == "int") {
+		} else if (target_type.data_type is Enum && (literal_type_name == "int" || literal_type_name == "uint")) {
 			// allow implicit conversion from 0 to enum and flags types
 			if (int.parse (literal_value) == 0) {
 				return true;
-- 
2.47.2