Mercurial > repos > tabletprog
view samples/oper_impl.tp @ 242:0e7982adc76b
Make the successful return value from a match expression be truthy and the failure value false. This avoids an extra method call when checking the result and avoids allocating a new object when a match fails.
author | Mike Pavone <pavone@retrodev.com> |
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date | Sun, 05 Jan 2014 20:56:25 -0800 |
parents | 9820ecd4eed4 |
children |
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#{ pair <- :a b { #{ first <- a second <- b + <- :other { pair: first + (other first) second + (other second) } } } main <- { foo <- pair: 5 7 bar <- pair: 9 23 baz <- foo + bar print: ((baz first) string) . "\n" print: ((baz second) string) . "\n" 0 } }