public override AstNode Visit(CastOperation node)
{
// First expand the value.
Expression value = node.GetValue();
value = (Expression)value.Accept(this);
node.SetValue(value);
// Check if result is constant.
IChelaType nodeType = node.GetNodeType();
if(!nodeType.IsConstant())
return node;
// Cast the constant.
IChelaType valueType = value.GetNodeType();
if(valueType == nodeType)
return value;
ConstantValue valueConstant = (ConstantValue)value.GetNodeValue();
return valueConstant.Cast(nodeType).ToAstNode(node.GetPosition());
}
public override AstNode Visit(CastOperation node)
{
// Visit recursively.
node.GetValue().Accept(this);
return node;
}
public override AstNode Visit(CastOperation node)
{
// Begin the node.
builder.BeginNode(node);
// Get the target type and value.
//Expression target = node.GetTarget();
Expression value = node.GetValue();
// Visit them.
//target.Accept(this);
value.Accept(this);
// Get their types.
IChelaType targetType = node.GetNodeType();
IChelaType valueType = value.GetNodeType();
if(targetType != valueType)
Cast(node, value.GetNodeValue(), valueType, targetType, true);
return builder.EndNode();
}
public override AstNode Visit(CastOperation node)
{
// Get the target type and value.
Expression target = node.GetTarget();
Expression value = node.GetValue();
// Set the type hint to the target.
target.SetHints(Expression.TypeHint);
// Visit them.
target.Accept(this);
value.Accept(this);
// Get the target type.
IChelaType targetType = target.GetNodeType();
targetType = ExtractActualType(target, targetType);
if(targetType.IsPassedByReference())
targetType = ReferenceType.Create(targetType);
// Perform constant result check.
IChelaType valueType = value.GetNodeType();
if(valueType.IsConstant() &&
targetType.IsPrimitive())
{
valueType = DeConstType(valueType);
if(valueType.IsPrimitive())
targetType = ConstantType.Create(targetType);
}
// TODO: Check if it is possible to perform the cast.
// Set the node type.
node.SetNodeType(targetType);
return node;
}
