Get the result type of this expression node
Source position: fpexprpars.pp line 125
public function TFPExprNode.NodeType: TResultType; virtual; abstract; |
Returns the result type of the node
The NodeType abstract method must be implemented by derived classes to return the TResultType that indicates what type of value this node will produce when evaluated.
The result type information is essential for type checking during expression validation and for determining appropriate type conversions when combining values from different nodes.
Common result types include boolean, integer, float, string, datetime, and currency, depending on the specific operation or value represented by the node.