perl -wle 'foo() for @ARGV'

foo() may or may not be called, depending on @ARGV. This is just a very simple example of the larger problem: subroutines may or may not be called based on conditions that can only be determined at run-time.

The only way to really do this was covered earlier: with a comprehensive test suite and gradual code modification.

In reply to Re^4: Cleaning up unused subroutines by Somni
in thread Cleaning up unused subroutines by koknat

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