Small Talk/문법정리

• ������로 ������는 문법��� �����다. ������만, Smalltlak ���명������ ���당 메���드가 ���디������ 발���되는���를 ������ ���게 만들��� ���다.
  
• Debug 모드������ 메��������� �������� 나���낼때�� ������된다.
  

~cpp 
a := 1.
b := OrderedCollection new.

~cpp 
Money class>>amout: anAmount
    self new setAmount: anAmount.

~cpp 
TempTestCase>>initialize
    super initialize.

~cpp 
a := OrderdCollection new
    add: 10;
    add: 1;
    add; 9;
    yourself.

~cpp 
Color>>alpha
    ...
    ^1.0

~cpp 
"Code in Bold"		"Comments in double-quotes"
3 squared.		"Receiver object is small integer 3."
			"The message sent is   #squared"

'abc' asUppercase.	"Receiver object is string 'abc'."
			"The message sent is   #asUppercase"

200 factorial.		"Receiver object is small integer 200."
			"The message sent is   #factorial"

• ���������는 단��� �����������며, ������는 ���다.(the selector is a single Identifier, there are no arguments)
  
• ������)
  

  ~cpp 
  3 negated			"selector is  #negated"
  'abcdefg' reverse		"selector is  #reverse"
  

• ���������는 ��������� 기���(���나나 둘��������� 문���, ������가 ���님)���고, ������가 �� ���나만 ���다.(the selector is one or two non-alphanumeric characters, followed by exactly one argument object)
  
• ������)
  

  ~cpp 
  3 + 5				"selector is  #+"
  				"argument is the Integer object 5"
  'abc' , 'xyz'			"selector is  #,  (comma character)"
  				"argument is the String 'xyz'"
  20 <= 20			"selector is  #<="
  				"argument is the Integer object 20"
  

• ������드란 ���론(:)��� 뒤��� 붙는 �����������다.(a keyword is an Identifier followed by colon ":" )
  
• 각 ������드��� ������가 ������ 때, ���������는 ���나 ��������� ������드���다.(the selector is one or more keywords, when called each keyword is followed by an argument object) -> �������� ������ ���고
  
• ������)
  

  ~cpp 
  3 raisedTo: 17.			"selector is  #raisedTo:"
  				"argument is 17"
  3 between: 5 and: 10.		"selector is  #between:and:"
  				"arguments are 5 and 10"
  Point x: 4 y: 200. 		"receiver is the object Point"
  				"selector is  #x:y"
  				"arguments are 4 and 200"