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devel/p5-Eval-Closure,
Safely and cleanly create closures via string eval
Branch: pkgsrc-2022Q4,
Version: 0.14nb7,
Package name: p5-Eval-Closure-0.14nb7,
Maintainer: pkgsrc-usersString eval is often used for dynamic code generation. For instance,
Moose uses it heavily, to generate inlined versions of accessors
and constructors, which speeds code up at runtime by a significant
amount. String eval is not without its issues however - it's
difficult to control the scope it's used in (which determines which
variables are in scope inside the eval), and it can be quite slow,
especially if doing a large number of evals.
This module attempts to solve both of those problems. It provides
an eval_closure function, which evals a string in a clean environment,
other than a fixed list of specified variables. It also caches the
result of the eval, so that doing repeated evals of the same source,
even with a different environment, will be much faster (but note
that the description is part of the string to be evaled, so it must
also be the same (or non-existent) if caching is to work properly).
Master sites: (Expand)
Filesize: 19.656 KB
Version history: (Expand)
- (2022-12-27) Package added to pkgsrc.se, version p5-Eval-Closure-0.14nb7 (created)