at:tutorial:objects
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at:tutorial:objects [2007/07/10 22:21] – changed tvcutsem | at:tutorial:objects [2007/07/18 14:51] – jorge | ||
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Line 94: | Line 94: | ||
def z := 0; | def z := 0; | ||
def sumOfSquares() { | def sumOfSquares() { | ||
- | super^sumOfSquares() + z*z | + | super^sumOfSquares() + z*z; |
}; | }; | ||
} | } | ||
Line 181: | Line 181: | ||
A message sent to an object using the '' | A message sent to an object using the '' | ||
- | Of course, the example above is a bit contrived: we could have just assigned '' | + | Of course, the example above is a bit contrived: we could have just assigned '' |
Having described the semantics of '' | Having described the semantics of '' | ||
Line 202: | Line 202: | ||
===== Encapsulation ===== | ===== Encapsulation ===== | ||
- | In AmbientTalk, all fields and methods are " | + | |
+ | AmbientTalk | ||
< | < | ||
- | > def makeObject(hidden) { | + | def makeBankAccount(balance) { |
- | object: { | + | object: { |
- | def foo() { /* use hidden */ } | + | def deposit(amnt) { |
- | } | + | balance := balance + amnt; |
+ | " | ||
+ | }; | ||
} | } | ||
+ | } | ||
</ | </ | ||
- | Due to the encapsulation of this object the following | + | Because |
< | < | ||
- | > makeObject(5).hidden; | + | > makeBankAccount(100).balance; |
- | >> | + | >> |
< | < | ||
</ | </ |
at/tutorial/objects.txt · Last modified: 2013/05/17 20:23 by tvcutsem