Parametric polymorphism: Difference between revisions
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m (omit from Factor: not statically typed) |
m (minor clarification) |
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For comparison purposes (and because this entry looked a bit sparse without it) this is the D example from this page translated to Phix.<br> |
For comparison purposes (and because this entry looked a bit sparse without it) this is the D example from this page translated to Phix.<br> |
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Note that tmap has to be a function rather than a procedure with a reference parameter, but this still achieves |
Note that tmap has to be a function rather than a procedure with a reference parameter, but this still achieves |
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pass-by-reference/in-situ updates, mainly because root is a local rather than global/static, and is the target |
pass-by-reference/in-situ updates, mainly because root is a local rather than global/static, and is the target of |
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(aka assigned to/overwritten on return from) the top-level tmap() call, and yet also manages the C#/Dart/Kotlin |
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thing (by which I am referring to those specific examples on this page) of creating a whole new tree, simply |
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because lhs assignee!=rhs reference (aka root2!=root) in that object root2 = tmap(root,rid) call. |
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<lang Phix>enum data, left, right |
<lang Phix>enum data, left, right |
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-- Modify the whole tree. |
-- Modify the whole tree. |
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root = tmap(root,routine_id("add10")) |
root = tmap(root,routine_id("add10")) |
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-- Create a whole new tree. |
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object root2 = tmap(root,rid) |
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-- Show the whole tree again. |
-- Show the whole tree again. |
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