Inner classes: Difference between revisions
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main()
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=={{header|Phix}}==
Phix has no support whatsoever for inner classes. You can of course do something like this:
<!--<syntaxhighlight lang="phix">(notonline)-->
<span style="color: #008080;">without</span> <span style="color: #008080;">js</span> <span style="color: #000080;font-style:italic;">-- (classes)</span>
<span style="color: #008080;">class</span> <span style="color: #000000;">inner</span>
<span style="color: #008080;">public</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">v</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">is</span><span style="color: #0000FF;">(</span><span style="color: #004080;">integer</span> <span style="color: #000000;">v</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">v</span><span style="color: #0000FF;">+</span><span style="color: #7060A8;">this</span><span style="color: #0000FF;">.</span><span style="color: #000000;">v</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">class</span>
<span style="color: #008080;">class</span> <span style="color: #000000;">outer</span>
<span style="color: #008080;">public</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">v</span>
<span style="color: #008080;">public</span> <span style="color: #000000;">inner</span> <span style="color: #000000;">i</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">ois</span><span style="color: #0000FF;">()</span>
<span style="color: #000000;">inner</span> <span style="color: #000000;">ti</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">this</span><span style="color: #0000FF;">.</span><span style="color: #000000;">i</span> <span style="color: #000080;font-style:italic;">-- (a needed compiler hint)</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">ti</span><span style="color: #0000FF;">.</span><span style="color: #000000;">is</span><span style="color: #0000FF;">(</span><span style="color: #000000;">v</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">class</span>
<span style="color: #000000;">outer</span> <span style="color: #000000;">o</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">new</span><span style="color: #0000FF;">({</span><span style="color: #000000;">42</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">new</span><span style="color: #0000FF;">(</span><span style="color: #000000;">inner</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">1</span><span style="color: #0000FF;">})})</span>
<span style="color: #0000FF;">?</span><span style="color: #000000;">o</span><span style="color: #0000FF;">.</span><span style="color: #000000;">v</span>
<span style="color: #0000FF;">?</span><span style="color: #000000;">o</span><span style="color: #0000FF;">.</span><span style="color: #000000;">i</span><span style="color: #0000FF;">.</span><span style="color: #000000;">v</span>
<span style="color: #0000FF;">?</span><span style="color: #000000;">o</span><span style="color: #0000FF;">.</span><span style="color: #000000;">v</span><span style="color: #0000FF;">+</span><span style="color: #000000;">o</span><span style="color: #0000FF;">.</span><span style="color: #000000;">i</span><span style="color: #0000FF;">.</span><span style="color: #000000;">v</span>
<span style="color: #0000FF;">?</span><span style="color: #000000;">o</span><span style="color: #0000FF;">.</span><span style="color: #000000;">ois</span><span style="color: #0000FF;">()</span>
<!--</syntaxhighlight>-->
A shown, Phix often needs explicit compiler hints when dealing with classes, without "ti" above it treats "this.i" as still somehow being an "outer", and admittedly there is no real access to outer's contents within inner. Instead you would need shims like that ois() to explicitly pass along everything it needs.<br>
It is also possible to pass routines around directly, such as i.is and o.ois [ie no parenthesis] and then invoke them with an explicit "this", which can get round some of those limitations, and act as an alternative to those compiler hints.
{{out}}
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42
1
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43
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=={{header|Raku}}==
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