套件：libmodule-want-perl（0.6-2）

module to check @INC only once for wanted modules

Sometimes you want to lazy load a module for use in, say, a loop or function. First you do the eval-require but then realize if the module is not available it will re-search @INC each time. So then you add a lexical boolean to your eval and do the same simple logic all over the place.

Module::Want encapsulates that logic so that have_mod() is like eval { require X; 1 } but if the module can't be loaded it will remember that fact and not look in @INC again on subsequent calls.

標籤: 軟體開發: Perl 開發, 函式庫, 實做語言: Perl

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