codegen: Append initializer for "_*_size_" of array field in internal struct

Fixes https://gitlab.gnome.org/GNOME/vala/issues/914

3 files changed, 37 insertions, 0 deletions

diff --git a/codegen/valaccodebasemodule.vala b/codegen/valaccodebasemodule.vala
index 85ea40d5f..536aca2f6 100644
--- a/codegen/valaccodebasemodule.vala
+++ b/codegen/valaccodebasemodule.vala
@@ -2723,6 +2723,9 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 						for (int dim = 1; dim <= array_type.rank; dim++) {
 							clist.append (get_array_length_cvalue (expr.target_value, dim));
 						}
+						if (array_type.rank == 1 && field.is_internal_symbol ()) {
+							clist.append (get_array_length_cvalue (expr.target_value, 1));
+						}
 					}
 				}
 
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 0eaa2376a..7a6d37d8f 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -90,6 +90,7 @@ TESTS = \
 	arrays/length-inline-assignment.vala \
 	arrays/length-type-include.vala \
 	arrays/struct-field-length-cname.vala \
+	arrays/struct-field-initializer.vala \
 	arrays/incompatible-integer-elements.test \
 	arrays/slice-invalid-start.test \
 	arrays/slice-invalid-stop.test \
diff --git a/tests/arrays/struct-field-initializer.vala b/tests/arrays/struct-field-initializer.vala
new file mode 100644
index 000000000..9534c8490
--- /dev/null
+++ b/tests/arrays/struct-field-initializer.vala
@@ -0,0 +1,33 @@
+[CCode (has_type_id = false)]
+struct Foo {
+	public unowned string[] array;
+	public int i;
+}
+
+[CCode (has_type_id = false)]
+public struct Bar {
+	public unowned string[] array;
+	public int i;
+}
+
+const string[] SARRAY = { "foo", "bar" };
+
+const Foo FOO = { SARRAY, 23 };
+const Bar BAR = { SARRAY, 42 };
+
+void main () {
+	{
+		assert (FOO.array.length == 2);
+		assert (FOO.i == 23);
+		assert (BAR.array.length == 2);
+		assert (BAR.i == 42);
+	}
+	{
+		const Foo foo = { SARRAY, 23 };
+		const Bar bar = { SARRAY, 42 };
+		assert (foo.array.length == 2);
+		assert (foo.i == 23);
+		assert (bar.array.length == 2);
+		assert (bar.i == 42);
+	}
+}