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The system works pretty well in Python. But Perl isn't Python. One notable difference would have a major effect:

The system applies checks to rvalues. And while function arguments are rvalues in Python, sub arguments are lvalues in Perl. Same for method calls.

Were the model adopted in Perl, typos in sub arguments wouldn't be caught, and could hide typos outside of sub arguments. This would severely harm the efficacity of the system because a large amount of code consists of sub and method calls.

In reply to Re^2: A short whishlist of Perl5 improvements leaping to Perl7 by ikegami
in thread A short whishlist of Perl5 improvements leaping to Perl7 by rsFalse

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