codegen: Inherit array_{length,null_terminated} from base parameter

First commit to start inheriting ccode attributes of parameters
from base parameters of base methods.

Partially fixes bug 642885.

1 files changed, 16 insertions, 0 deletions

diff --git a/vala/valaparameter.vala b/vala/valaparameter.vala
index c42d6f33a..e65703dc2 100644
--- a/vala/valaparameter.vala
+++ b/vala/valaparameter.vala
@@ -45,6 +45,11 @@ public class Vala.Parameter : Variable {
 	public bool captured { get; set; }
 
 	/**
+	 * The base parameter of this parameter relative to the base method.
+	 */
+	public Parameter base_parameter { get; set; }
+
+	/**
 	 * Creates a new formal parameter.
 	 *
 	 * @param name   parameter name
@@ -180,6 +185,17 @@ public class Vala.Parameter : Variable {
 			}
 		}
 
+		var m = parent_symbol as Method;
+		if (m != null) {
+			Method base_method = m.base_method != null ? m.base_method : m.base_interface_method;
+			if (base_method != null && base_method != m) {
+				int index = m.get_parameters ().index_of (this);
+				if (index >= 0) {
+					base_parameter = base_method.get_parameters ().get (index);
+				}
+			}
+		}
+
 		context.analyzer.current_source_file = old_source_file;
 		context.analyzer.current_symbol = old_symbol;