On 30.10.2009, at 11:52, Christine Wolfe wrote:
drawOn: aCanvas
super drawOn: aCanvas.
(self perform: ('face', dieValue asString) asSymbol)
do: [{:aPoint, anotherPoint} | self drawLineOn: aCanvas from: aPoint
to: anotherPoint]
In my version of Squeak this won't even compile.
How did you accept that method?
The curly-bracket array notation can not be used to extract multiple
arguments. Instead, you would have to do something like this:
[:aPointPair | self drawLineOn: aCanvas from: aPointPair first to:
aPointPair second]
And secondly, this expression is valid syntactically but does not do
what you might expect:
face1
^...@2, 2...@10}, {...@2, 1...@2}, {...@10, 2...@10}, {...@10, 1...@2}}
In non-literal Array notation, expressions must be separated by
periods, not commas:
{...@2. 2...@10}. {...@2. 1...@2}. {...@10, 2...@10}. {...@10. 1...@2}}
The way you would verify a line like this or your's above is you
simply select it and press cmd-p so it will print the result. You can
do this in any browser or workspace.
- Bert -
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