codegen: Don't free temp-var for element-access to array with boxed structs

Check the symbol_reference of inner element-access as needed.

Regression of 63551acaf0d83fac8b50904c2759c1098fbfaa71

Fixes https://gitlab.gnome.org/GNOME/vala/issues/1174

2 files changed, 23 insertions, 0 deletions

diff --git a/tests/Makefile.am b/tests/Makefile.am
index a802bc8fb..346c67e2d 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -100,6 +100,7 @@ TESTS = \
 	constants/strings.vala \
 	namespace/unique.vala \
 	arrays/cast-silent-invalid.test \
+	arrays/cast-struct-boxed-element-access.vala \
 	arrays/class-field-initializer.vala \
 	arrays/class-field-length-cname.vala \
 	arrays/constant-element-access.vala \
diff --git a/tests/arrays/cast-struct-boxed-element-access.vala b/tests/arrays/cast-struct-boxed-element-access.vala
new file mode 100644
index 000000000..356ecbd50
--- /dev/null
+++ b/tests/arrays/cast-struct-boxed-element-access.vala
@@ -0,0 +1,22 @@
+struct Foo {
+	public int i;
+}
+
+void main () {
+	var foo = new Foo?[] { { 23 },  { 42 },  { 4711 } };
+	{
+		Foo f = foo[0];
+		assert (f.i == 23);
+		assert (foo[0].i == 23);
+	}
+	{
+		Foo f = (Foo) foo[1];
+		assert (f.i == 42);
+		assert (foo[1].i == 42);
+	}
+	{
+		Foo f = (!) foo[2];
+		assert (f.i == 4711);
+		assert (foo[2].i == 4711);
+	}
+}