Compound data type: Difference between revisions

=={{header|Lasso}}==

In Lasso, a point could just be stored in the pair type. However, assuming we want to be able to access the points using the member methods [Point->x] and [Point->y], let's just create a type that inherits from the pair type:

<lang lasso>define Point => type {

parent pair

public onCreate(x,y) => {

..onCreate(#x=#y)

}

public x => .first

public y => .second

}

local(point) = Point(33, 42)

#point->x

#point->y</lang>

{{out}}

<pre>33

43</pre>