[vala] Fix length access to multidimensional arrays and access to array fields

[Luca Bruno <lucabru src gnome org>]

commit 5319240be4724f149a291248637b4df2246c9953
Author: Luca Bruno <lucabru src gnome org>
Date:   Thu Sep 8 09:31:26 2011 +0200

    Fix length access to multidimensional arrays and access to array fields

 vala/valaelementaccess.vala |   13 +++++++++++++
 vala/valamemberaccess.vala  |    2 +-
 2 files changed, 14 insertions(+), 1 deletions(-)
---
diff --git a/vala/valaelementaccess.vala b/vala/valaelementaccess.vala
index 684d6e0..70a46a8 100644
--- a/vala/valaelementaccess.vala
+++ b/vala/valaelementaccess.vala
@@ -141,6 +141,19 @@ public class Vala.ElementAccess : Expression {
 			value_type = array_type.element_type.copy ();
 			if (!lvalue) {
 				value_type.value_owned = false;
+			} else {
+				var ma = container as MemberAccess;
+				if (context.profile == Profile.GOBJECT && ma != null && ma.symbol_reference is ArrayLengthField) {
+					// propagate lvalue for gobject length access
+					ma.inner.lvalue = true;
+					((MemberAccess) ma.inner).check_lvalue_struct_access ();
+				} else if (ma != null && ma.symbol_reference is Field &&
+					ma.inner != null && ma.inner.symbol_reference is Variable &&
+					ma.inner.value_type is StructValueType && !ma.inner.value_type.nullable) {
+					// propagate lvalue if container is a field and container.inner is a struct variable
+					ma.lvalue = true;
+					ma.check_lvalue_struct_access ();
+				}
 			}
 
 			if (array_type.rank < get_indices ().size) {
diff --git a/vala/valamemberaccess.vala b/vala/valamemberaccess.vala
index 1ec08da..5968e68 100644
--- a/vala/valamemberaccess.vala
+++ b/vala/valamemberaccess.vala
@@ -817,7 +817,7 @@ public class Vala.MemberAccess : Expression {
 		return !error;
 	}
 
-	private void check_lvalue_struct_access () {
+	public void check_lvalue_struct_access () {
 		if (inner == null) {
 			return;
 		}