Unit 'fpexprpars' Package
[Overview][Constants][Types][Classes][Procedures and functions][Index] [#fcl]

TFPExprVariable

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Internally used class for variable expression nodes

Declaration

Source position: fpexprpars.pp line 618

type TFPExprVariable = class(TFPExprIdentifierNode)

  procedure Check; override;

  

Validate the variable expression

  function AsString; override;

  

Get string representation of variable expression

end;

Inheritance

TFPExprVariable

  

Internally used class for variable expression nodes

|

TFPExprIdentifierNode

  

Internally used class for identifier nodes in expression trees

|

TFPExprNode

  

Class for representing nodes in expression trees

|

TObject

Description

The TFPExprVariable class represents a variable reference in an expression tree. Variables are identifiers that hold values and can be referenced by name within expressions to retrieve their current values.

This class is used internally by the TFPExpressionParser class to construct an AST (Abstract Syntax Tree). There is normally no need for you to use or instantiate this class directly.

See also

TFPExprNode

  

Class for representing nodes in expression trees


Documentation generated on: Dec 15 2025