[vala] codegen: Avoid writing C statements with no effect

[Jürg Billeter <juergbi src gnome org>]

commit 99b8af6abf30f86a1e48848ee6add9b260eb6152
Author: Jürg Billeter <j bitron ch>
Date:   Tue Dec 21 16:46:37 2010 +0100

    codegen: Avoid writing C statements with no effect

 codegen/valaccodeassignmentmodule.vala |   12 ++----------
 codegen/valaccodebasemodule.vala       |    4 ----
 2 files changed, 2 insertions(+), 14 deletions(-)
---
diff --git a/codegen/valaccodeassignmentmodule.vala b/codegen/valaccodeassignmentmodule.vala
index 5c93d71..0278e9e 100644
--- a/codegen/valaccodeassignmentmodule.vala
+++ b/codegen/valaccodeassignmentmodule.vala
@@ -180,11 +180,7 @@ public class Vala.CCodeAssignmentModule : CCodeMemberAccessModule {
 
 		ccode.add_expression (codenode);
 
-		if (assignment.parent_node is ExpressionStatement) {
-			return null;
-		} else {
-			return lhs;
-		}
+		return lhs;
 	}
 
 	CCodeExpression? emit_fixed_length_array_assignment (Assignment assignment, ArrayType array_type) {
@@ -205,11 +201,7 @@ public class Vala.CCodeAssignmentModule : CCodeMemberAccessModule {
 
 		ccode.add_expression (ccopy);
 
-		if (assignment.parent_node is ExpressionStatement) {
-			return null;
-		} else {
-			return lhs;
-		}
+		return lhs;
 	}
 
 	public override void visit_assignment (Assignment assignment) {
diff --git a/codegen/valaccodebasemodule.vala b/codegen/valaccodebasemodule.vala
index abd7d0e..bc7af35 100644
--- a/codegen/valaccodebasemodule.vala
+++ b/codegen/valaccodebasemodule.vala
@@ -3170,10 +3170,6 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 			return;
 		}
 
-		if (get_cvalue (stmt.expression) != null) {
-			ccode.add_expression (get_cvalue (stmt.expression));
-		}
-
 		/* free temporary objects and handle errors */
 
 		foreach (LocalVariable local in temp_ref_vars) {