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RosettaCodeData/Task/Parametric-polymorphism/Phix/parametric-polymorphism-2.phix

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<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
<span style="color: #008080;">enum</span> <span style="color: #000000;">data</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">left</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">right</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">tmap</span><span style="color: #0000FF;">(</span><span style="color: #004080;">sequence</span> <span style="color: #000000;">tree</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000000;">rid</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">tree</span><span style="color: #0000FF;">[</span><span style="color: #000000;">data</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">rid</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tree</span><span style="color: #0000FF;">[</span><span style="color: #000000;">data</span><span style="color: #0000FF;">])</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">tree</span><span style="color: #0000FF;">[</span><span style="color: #000000;">left</span><span style="color: #0000FF;">]!=</span><span style="color: #004600;">null</span> <span style="color: #008080;">then</span> <span style="color: #000000;">tree</span><span style="color: #0000FF;">[</span><span style="color: #000000;">left</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">tmap</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">deep_copy</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tree</span><span style="color: #0000FF;">[</span><span style="color: #000000;">left</span><span style="color: #0000FF;">],</span><span style="color: #000000;">1</span><span style="color: #0000FF;">),</span><span style="color: #000000;">rid</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">if</span> <span style="color: #000000;">tree</span><span style="color: #0000FF;">[</span><span style="color: #000000;">right</span><span style="color: #0000FF;">]!=</span><span style="color: #004600;">null</span> <span style="color: #008080;">then</span> <span style="color: #000000;">tree</span><span style="color: #0000FF;">[</span><span style="color: #000000;">right</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">tmap</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">deep_copy</span><span style="color: #0000FF;">(</span><span style="color: #000000;">tree</span><span style="color: #0000FF;">[</span><span style="color: #000000;">right</span><span style="color: #0000FF;">],</span><span style="color: #000000;">1</span><span style="color: #0000FF;">),</span><span style="color: #000000;">rid</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<span style="color: #008080;">return</span> <span style="color: #000000;">tree</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">newnode</span><span style="color: #0000FF;">(</span><span style="color: #004080;">object</span> <span style="color: #000000;">v</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">v</span><span style="color: #0000FF;">,</span><span style="color: #004600;">null</span><span style="color: #0000FF;">,</span><span style="color: #004600;">null</span><span style="color: #0000FF;">}</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">add10</span><span style="color: #0000FF;">(</span><span style="color: #004080;">atom</span> <span style="color: #000000;">x</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">return</span> <span style="color: #000000;">x</span><span style="color: #0000FF;">+</span><span style="color: #000000;">10</span> <span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">procedure</span> <span style="color: #000000;">main</span><span style="color: #0000FF;">()</span>
<span style="color: #004080;">object</span> <span style="color: #000000;">root</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">newnode</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1.00</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">-- Add some nodes.</span>
<span style="color: #000000;">root</span><span style="color: #0000FF;">[</span><span style="color: #000000;">left</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">newnode</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1.10</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">root</span><span style="color: #0000FF;">[</span><span style="color: #000000;">left</span><span style="color: #0000FF;">][</span><span style="color: #000000;">left</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">newnode</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1.11</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">root</span><span style="color: #0000FF;">[</span><span style="color: #000000;">left</span><span style="color: #0000FF;">][</span><span style="color: #000000;">right</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">newnode</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1.12</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">root</span><span style="color: #0000FF;">[</span><span style="color: #000000;">right</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">newnode</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1.20</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">root</span><span style="color: #0000FF;">[</span><span style="color: #000000;">right</span><span style="color: #0000FF;">][</span><span style="color: #000000;">left</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">newnode</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1.21</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">root</span><span style="color: #0000FF;">[</span><span style="color: #000000;">right</span><span style="color: #0000FF;">][</span><span style="color: #000000;">right</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">newnode</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1.22</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">-- Now the tree has seven nodes.
-- Show the whole tree.</span>
<span style="color: #7060A8;">ppOpt</span><span style="color: #0000FF;">({</span><span style="color: #004600;">pp_Nest</span><span style="color: #0000FF;">,</span><span style="color: #000000;">2</span><span style="color: #0000FF;">})</span>
<span style="color: #7060A8;">pp</span><span style="color: #0000FF;">(</span><span style="color: #000000;">root</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">-- Modify the whole tree.</span>
<span style="color: #000000;">root</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">tmap</span><span style="color: #0000FF;">(</span><span style="color: #000000;">root</span><span style="color: #0000FF;">,</span><span style="color: #000000;">add10</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">-- Create a whole new tree.</span>
<span style="color: #004080;">object</span> <span style="color: #000000;">root2</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">tmap</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">deep_copy</span><span style="color: #0000FF;">(</span><span style="color: #000000;">root</span><span style="color: #0000FF;">,</span><span style="color: #000000;">1</span><span style="color: #0000FF;">),</span><span style="color: #000000;">newnode</span><span style="color: #0000FF;">)</span>
<span style="color: #000080;font-style:italic;">-- Show the whole tree again.</span>
<span style="color: #7060A8;">pp</span><span style="color: #0000FF;">(</span><span style="color: #000000;">root</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
<span style="color: #000000;">main</span><span style="color: #0000FF;">()</span>
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