codegen: Reset outdated array _size_ variable after use as ref parameter

Fixes https://gitlab.gnome.org/GNOME/vala/issues/929

2 files changed, 12 insertions, 0 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 6c74a3186..dcda2cbe0 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -118,6 +118,7 @@ TESTS = \
 	methods/contains.vala \
 	methods/extern.vala \
 	methods/iterator.vala \
+	methods/parameter-ref-array-resize.vala \
 	methods/prepostconditions.vala \
 	methods/same-name.vala \
 	methods/symbolresolution.vala \
diff --git a/tests/methods/parameter-ref-array-resize.vala b/tests/methods/parameter-ref-array-resize.vala
new file mode 100644
index 000000000..ffe27d35b
--- /dev/null
+++ b/tests/methods/parameter-ref-array-resize.vala
@@ -0,0 +1,11 @@
+void foo (ref int[] a) {
+	a = new int[1];
+}
+
+void main() {
+	int[] a = new int[10 * 1024 * 1024];
+	foo (ref a);
+	for (int i = 1; i < 10 * 1024 * 1024; i++) {
+		a += 4711;
+	}
+}