public override Statement VisitAssignmentStatement(AssignmentStatement assignment)
{
if (assignment == null) return null;
return base.VisitAssignmentStatement((AssignmentStatement)assignment.Clone());
}
public override Statement VisitAssignmentStatement(AssignmentStatement assignment)
{
assignment = (AssignmentStatement)assignment.Clone();
Expression target = assignment.Target;
Expression source = assignment.Source;
if (assignment.SourceContext.Document == null) {
assignment.SourceContext = this.current_source_context;
}
if((target == null) || (source == null))
throw new ApplicationException("Strange CCI format " + CodePrinter.StatementToString(assignment));
switch(target.NodeType)
{
case NodeType.AddressDereference:
assignment.Target = (Expression)this.Visit(target);
if (source is Literal && ((Literal)source).Value == null &&
((assignment.Target.Type != null && assignment.Target.Type.IsValueType) || (assignment.Target.Type is TypeParameter) ||
(assignment.Target.Type is ClassParameter)))
{
// initobj encoding.
return assignment;
}
assignment.Source = simplify(source, true);
return assignment;
case NodeType.MemberBinding:
case NodeType.Indexer:
assignment.Target = (Expression)this.Visit(target);
assignment.Source = simplify(source, true);
return assignment;
case NodeType.Local:
case NodeType.Parameter:
// target is a Variable; we can be more relaxed on the right side
// Note: VS has a strange indentation for switch inside a switch ...
switch(source.NodeType)
{
// (source is MethodCall) ||
case NodeType.Call :
case NodeType.Calli :
case NodeType.Callvirt :
case NodeType.Jmp :
case NodeType.MethodCall :
// (source is ArrayConstruct) ||
case NodeType.ConstructArray:
// (source is AddressDereference) ||
case NodeType.AddressDereference:
// (source is MemberBinding) ||
case NodeType.MemberBinding:
// (source is Indexer)
case NodeType.Indexer:
assignment.Source = (Expression)this.Visit(source);
break;
case NodeType.Literal:
break;
// (source is Construct)
case NodeType.Construct:
default:
assignment.Source = simplify(source, true);
break;
}
return assignment;
default:
throw new ApplicationException("Strange CCI format " + CodePrinter.StatementToString(assignment));
}
}