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

TFPExprIdentifierDefs.AddFunction

Add a function to the collection

Declaration

Source position: fpexprpars.pp line 596

public function TFPExprIdentifierDefs.AddFunction(

const AName: ShortString;

const AResultType: AnsiChar;

const AParamTypes: AnsiString;

ACallBack: TFPExprFunctionCallBack

):TFPExprIdentifierDef; function TFPExprIdentifierDefs.AddFunction(

const AName: ShortString;

const AResultType: AnsiChar;

const AParamTypes: AnsiString;

ACallBack: TFPExprFunctionEvent

):TFPExprIdentifierDef; function TFPExprIdentifierDefs.AddFunction(

const AName: ShortString;

const AResultType: AnsiChar;

const AParamTypes: AnsiString;

ANodeClass: TFPExprFunctionClass

):TFPExprIdentifierDef;

Arguments

`AName`		The name of the function
`AResultType`		The result type of the function
`AParamTypes`		The parameter types of the function
`ACallBack`		The callback for function evaluation

Function result

Returns the added function identifier

Arguments

`AName`		The name of the function
`AResultType`		The result type of the function
`AParamTypes`		The parameter types of the function
`ACallBack`		The callback for function evaluation

Arguments

`AName`		The name of the function
`AResultType`		The result type of the function
`AParamTypes`		The parameter types of the function
`ANodeClass`		The node class for the function

Description

The AddFunction method creates and adds a new function identifier to the collection with the specified name, parameter types, result type, and implementation details. The function becomes available for use in expressions parsed by this identifier collection.