Overloaded operators: Difference between revisions
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Thundergnat (talk | contribs) m (→{{header|Raku}}: further exposition) |
Thundergnat (talk | contribs) m (→{{header|Raku}}: more clarification) |
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=={{header|Raku}}== |
=={{header|Raku}}== |
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While it is very easy to overload operators in Raku, it isn't really common... |
While it is very easy to overload operators in Raku, it isn't really common... |
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at least, not in the traditional sense. |
at least, not in the traditional sense. Or it's extremely common... It depends on how you view it. |
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that: "Different things should look different". It follows that "Similar things |
One of the founding principles of Raku is that: "Different things should look different". It follows that "Similar things should look similar". |
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should look similar". |
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To pick out one tiny example: Adding numbery things together shouldn't be easily confusable with concatenating |
To pick out one tiny example: Adding numbery things together shouldn't be easily confusable with concatenating |
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Unicode character or combination may used to define it. They may be infix, |
Unicode character or combination may used to define it. They may be infix, |
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prefix, postfix, (or post-circumfix!) The precedence, associativity and arity |
prefix, postfix, (or post-circumfix!) The precedence, associativity and arity |
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are all easily defined. |
are all easily defined. An operator at heart is just a subroutine with funny calling conventions. |
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Borrowed from the [[Nimber_arithmetic#Raku|Nimber arithmetic]] task: |
Borrowed from the [[Nimber_arithmetic#Raku|Nimber arithmetic]] task: |
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} |
} |
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# New infix + |
# New infix + multi to add two Lines together, for some bogus definition of add |
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multi infix:<+> (Line $x, Line $y) { |
multi infix:<+> (Line $x, Line $y) { |
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Line.new( |
Line.new( |
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