Class TSelectExpression

Unit

RbwParser

Declaration

type TSelectExpression = class(TExpression)

Description

TSelectExpression is used for "if" and "case" statements. It allows Evaluate to be faster and safer by only evaluating the arguments that will be used.

Hierarchy

• TObject
• TConstant
• TCustomValue
• TExpression
• TSelectExpression

Overview

Methods

procedure Evaluate; override;

Description

Methods

	procedure Evaluate; override;
Evaluate calls Evaluate for its first argument and based on the result of that argument calls Evaluate for one of its other arguments and sets its own result to the result of that argument.