Example Void methodsOf 011

 

 

Description

This example defines a method named AddError that is invoked when the Void type receives an Add message. The AddError method simply displays an error message. The logic behind the error message is that the Void type, or the #void constant cannot be used as an operand in a binary add. The methodsOf function is used to query the Void Methods Dictionary for the added method AddError.

 

Details

Define the AddError method:

(defun AddError (a b) writeln "Error: Adding to Void is Invalid") Returns: #<Lambda 123456>

Install the AddError method and the message named Add in the Void Methods Dictionary .

(defmethod Void: Add(a b) (AddError a b)) Returns: #<Dictionary 123456>

Query the methods Dictionary for the Void Object Type:

(length (methodsOf Void: )) Returns: 1

Get the names of the methods in the methods Dictionary for the Void Object Type:

(ref (methodsOf Void:)[0 0]) Returns: Add
(ref (methodsOf Matrix:)[0 1]) Returns: #<Lambda 123456>

 

Related Examples

Here are examples of the methodsOf function at work.

BitVector methodsOf 021 Boolean methodsOf 012 Brick methodsOf 024 Character methodsOf 013
Date methodsOf 015 Dictionary methodsOf 007 Directory methodsOf 008 FltVector methodsOf 017
Function methodsOf 016 IntVector methodsOf 018 List methodsOf 022 Matrix methodsOf 010
NumMatrix methodsOf 024 NumVector methodsOf 019 Number methodsOf 014 ObjectRepository methodsOf 023
Pair methodsOf 021 PcodeVector methodsOf 020 ShortVector methodsOf 019 String methodsOf 001
String methodsOf 002 String methodsOf 003 Structure methodsOf 005 Symbol methodsOf 004
Vector methodsOf 009 Void methodsOf 011

 

Function Links

Here is the link to the current function used in this example.

methodsOf

Here are a number of links to other related functions.

defmethod(#void) send(#void) addMethod(#void) makeDictionary(#void)

 

Argument Types

Here are the links to the data types of the arguments used in this example.

Symbol Void

Here are a number of links to examples having similar argument types.

BitVector addMethod 023 BitVector defmethod 020 BitVector methodsOf 021 Boolean addMethod 011
Boolean addMethod 012 Boolean defmethod 012 Boolean methodsOf 012 Boolean send 010
Brick addMethod 008 Brick defmethod 025 Brick methodsOf 024 Brick send 027
ByteVector isCharAlphabetic 003 ByteVector isCharAlphanumeric 003 ByteVector isCharLowercase 003 ByteVector isCharName 003
ByteVector isCharNumeric 003 ByteVector isCharUppercase 003 ByteVector isCharWhitespace 003 Character addMethod 013
Character defmethod 013 Character methodsOf 013 Character send 011 Context debug 001
Context getGlobalValue 001 Context getSymbolTable 001 Context globalBinding 001 CpxVector addMethod 028
CpxVector send 028 Date addMethod 015 Date addMethod 016 Date defmethod 015
Date isDate 001 Date methodsOf 015 Date send 013 Dictionary addMethod 005
Dictionary binarySearch 002 Dictionary defMethod 006 Dictionary delete 004 Dictionary insert 002
Dictionary inside 002 Dictionary isBound 002 Dictionary isDictionary 001 Dictionary member 002
Dictionary methodsOf 007 Dictionary new 004 Dictionary ref 007 Dictionary ref 008
Dictionary ref 009 Dictionary refAttributes 002 Dictionary refValues 002 Dictionary remove 002
Dictionary send 004 Dictionary setAttributes 002 Dictionary setq 007 Dictionary setq 009
Dictionary sort 003 Dictionary sort 005 Directory addMethod 006 Directory defMethod 007
Directory delete 006 Directory insert 003 Directory inside 003 Directory isBound 003
Directory isInside 003 Directory isMember 003 Directory member 002 Directory methodsOf 008
Directory new 005 Directory new 006 Directory ref 010 Directory ref 011
Directory ref 012 Directory refAttributes 003 Directory refValues 003 Directory remove 003
Directory send 005 Directory setAttributes 003 Directory setq 010 Directory setq 011
Directory sort 008 Directory sort 009 Error isIdentical 007 FltVector addMethod 019
FltVector defmethod 017 FltVector delete 009 FltVector insert 005 FltVector methodsOf 017
Function addMethod 017 Function addMethod 018 Function defmethod 016 Function methodsOf 016
Function send 014 IntVector addMethod 020 IntVector defmethod 018 IntVector delete 010
IntVector insert 006 IntVector methodsOf 018 Lambda debug 001 Lambda define(macro) 001
Lambda defmacro 001 Lambda defmacro 002 Lambda exportTab 001 Lambda globalBinding 001
Lambda importTab 001 Lambda isLambda 001 List addMethod 025 List defmethod 022
List methodsOf 022 List send 020 Matrix addMethod 008 Matrix defMethod 009
Matrix delete 009 Matrix insert 005 Matrix methodsOf 010 NumMatrix addMethod 027
NumMatrix defmethod 024 NumMatrix delete 014 NumMatrix insert 009 NumMatrix methodsOf 024
NumVector addMethod 021 NumVector defmethod 019 NumVector delete 011 NumVector insert 007
NumVector methodsOf 019 Number addMethod 014 Number defmethod 014 Number methodsOf 014
Number send 012 ObjVector addMethod 022 ObjVector delete 012 ObjVector insert 008
ObjectRepository addMethod 026 ObjectRepository defmethod 023 ObjectRepository delete 013 ObjectRepository methodsOf 023
ObjectRepository send 026 Pair addMethod 024 Pair defmethod 021 Pair methodsOf 021
Pair send 019 PcodeVector methodsOf 020 ShortVector addMethod 021 ShortVector defmethod 019
ShortVector delete 011 ShortVector insert 007 ShortVector methodsOf 019 String isChar 001
String isCharAlphabetic 001 String isCharAlphanumeric 001 String isCharLowercase 001 String isCharName 001
String isCharNumeric 001 String isCharUppercase 001 String isCharWhitespace 001 String isEqual 001
String isEqual 002 String isObject 001 String isString 001 String isText 001
String isType 001 String isType 002 String isType 003 String setq 001
String sizeof 001 String string 001 String string 002 String string 003
String type 001 Structure addMethod 003 Structure addMethod 004 Structure binaryInsert 001
Structure binarySearch 001 Structure defmethod 004 Structure defmethod 005 Structure delete 001
Structure delete 002 Structure insert 001 Structure inside 001 Structure isBound 001
Structure isInside 001 Structure isMember 001 Structure member 001 Structure methodsOf 005
Structure new 003 Structure ref 004 Structure ref 006 Structure refAttributes 001
Structure refValues 001 Structure remove 001 Structure send 003 Structure setAttributes 001
Structure setq 003 Structure setq 004 Structure setq 005 Structure setq 006
Structure uniqueInsert 001 Structure uniqueInsert 002 Symbol *< 001 Symbol ++ 001
Symbol +< 001 Symbol -- 001 Symbol -< 001 Symbol /< 001
Symbol addMethod 002 Symbol append 003 Symbol compare 002 Symbol compareEQ 002
Symbol compareGE 002 Symbol compareGT 002 Symbol compareLE 002 Symbol compareLT 002
Symbol compareNE 002 Symbol comparison functions 002 Symbol defMethod 003 Symbol downcase 002
Symbol getGlobalValue 001 Symbol getGlobalValue 002 Symbol getSymbolTable 001 Symbol getSymbolTable 002
Symbol hashString 002 Symbol isCharAlphabetic 002 Symbol isCharAlphanumeric 002 Symbol isCharLowercase 002
Symbol isCharName 002 Symbol isCharNumeric 002 Symbol isCharUppercase 002 Symbol isCharWhitespace 002
Symbol isObject 002 Symbol isSymbol 001 Symbol isType 004 Symbol methodsOf 004
Symbol new 002 Symbol proplist 001 Symbol proprecord 001 Symbol putprop 001
Symbol ref 003 Symbol remProp 001 Symbol setq 001 Symbol setq 002
Symbol sizeof 002 Symbol symbol 001 Symbol symbol 002 Symbol type 002
Symbol upcase 004 Vector addMethod 007 Vector defmethod 008 Vector delete 007
Vector delete 008 Vector insert 004 Vector methodsOf 009 Vector setAttributes 004
Vector setAttributes 005 Void addMethod 009 Void addMethod 010 Void compareGE 008
Void compareLE 008 Void compareLT 008 Void comparison functions 008 Void defmethod 010
Void defmethod 011 Void isEqual 006 Void isIdentical 006 Void isNull 001
Void isType 010 Void methodsOf 011 Void ref 017 Void send 009
Void setq 015 Void sizeof 008 Void type 011

Analytic Information Server (AIS)

AIS Component Systems

  • Smartbase Engine
  • QT C++ Libraries
  • MySQL Relational Database
  • AIS Lisp Libraries
  • Rapid Analytic Demo IDE