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- Added stale-when: syntax: (stale-when guard-expr e* ...) ;; in definition context (stale-when guard-expr e e* ...) ;; in expression context semantics: When a stale-when form is encountered while expanding any code (expressions, macros, macros in macros, etc.) in a library body, the guard-expr is expanded (but not evaluated) and serialized along with the library. When the library is later reloaded from fasl and before it is installed, the guard-expr is evaluated. If guard-expr returns true, the fasl content is ignored and the library is recompiled afresh from source.
2009-05-28 02:02:47 -04:00
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