IExpressionNode CreateNode(INode node)
{
IExpressionNode expressionNode = null;
if (node is ExpressionStatement)
{
var statementNode = (ExpressionStatement)node;
expressionNode = new StatementExpressionNode
{
Expression = CreateNode(statementNode.Expression)
};
}
else if (node is BinaryOperatorExpression)
{
var binaryNode = ((BinaryOperatorExpression)node);
expressionNode = new BinaryExpressionNode
{
Operator = (BinaryExpressionNode.Operators)binaryNode.Op,
Left = CreateNode(binaryNode.Left),
Right = CreateNode(binaryNode.Right),
};
}
else if (node is PrimitiveExpression)
{
var primitiveNode = (PrimitiveExpression)node;
var valueType = primitiveNode.Value == null ? typeof(object) : primitiveNode.Value.GetType();
var value = (IValueNode)Activator.CreateInstance(typeof(ValueNode<>).MakeGenericType(valueType), primitiveNode.Value);
expressionNode = new ValueExpressionNode
{
Value = value,
};
}
return expressionNode;
}
public static IExpressionNode CreateNode(ExpressionTypes type)
{
IExpressionNode node = null;
switch (type)
{
case ExpressionTypes.BlockExpression:
node = new PExpression();
break;
case ExpressionTypes.StatementExpression:
node = new StatementExpressionNode();
break;
case ExpressionTypes.UnaryExpression:
break;
case ExpressionTypes.BinaryExpression:
node = new BinaryExpressionNode();
break;
case ExpressionTypes.TernaryExpression:
break;
case ExpressionTypes.IdentifierExpression:
break;
case ExpressionTypes.ValueExpression:
node = new ValueExpressionNode();
break;
}
return node;
}