From bc8bf47d67d1056522f5e65c188e542b94a95449 Mon Sep 17 00:00:00 2001
From: Rico Tzschichholz <ricotz@ubuntu.com>
Date: Sat, 14 Mar 2020 15:15:51 +0100
Subject: [PATCH] vala: Accept enum-values as length for inline allocated
 arrays

Fixes https://gitlab.gnome.org/GNOME/vala/issues/935
---
 tests/Makefile.am                         |  1 +
 tests/arrays/fixed-length-enum-value.vala | 19 +++++++++++++++++++
 vala/valaarraytype.vala                   |  3 ++-
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 tests/arrays/fixed-length-enum-value.vala

diff --git a/tests/Makefile.am b/tests/Makefile.am
index dd3cb46f9..893392b94 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -79,6 +79,7 @@ TESTS = \
 	arrays/fixed-length-init0-not-allowed.vala \
 	arrays/field-global-length-cname.vala \
 	arrays/fixed-length-concat-invalid.test \
+	arrays/fixed-length-enum-value.vala \
 	arrays/fixed-length-non-const.test \
 	arrays/fixed-length-resize-invalid.test \
 	arrays/inline-field.test \
diff --git a/tests/arrays/fixed-length-enum-value.vala b/tests/arrays/fixed-length-enum-value.vala
new file mode 100644
index 000000000..c195eb115
--- /dev/null
+++ b/tests/arrays/fixed-length-enum-value.vala
@@ -0,0 +1,19 @@
+enum Foo {
+	BAR = 23;
+}
+
+struct Bar {
+	public char array[Foo.BAR];
+}
+
+void foo (uint array[Foo.BAR]) {
+	assert (array.length == 23);
+}
+
+void main () {
+	int array[Foo.BAR];
+	assert (array.length == 23);
+
+	var bar = Bar ();
+	assert (bar.array.length == 23);
+}
diff --git a/vala/valaarraytype.vala b/vala/valaarraytype.vala
index bb6dceb44..9add1d0d4 100644
--- a/vala/valaarraytype.vala
+++ b/vala/valaarraytype.vala
@@ -289,7 +289,8 @@ public class Vala.ArrayType : ReferenceType {
 		if (fixed_length && length != null) {
 			length.check (context);
 
-			if (length.value_type == null || !(length.value_type is IntegerType) || !length.is_constant ()) {
+			if (length.value_type == null || !(length.value_type is IntegerType || length.value_type is EnumValueType)
+			    || !length.is_constant ()) {
 				error = true;
 				Report.error (length.source_reference, "Expression of constant integer type expected");
 				return false;
-- 
2.47.2