*compilation-unit-environment*

The variable (which is essentialed a renamed version of the now-deprecated sys:*compile-file-environment*) holds the current compile-file environment. It should only ever be set to either nil or to an environment created by sys:make-compile-file-environment or returned by sys:ensure-portable-walking-environment.

This environment has a lexical part and a global part; the lexical part is managed by augment-environment and the *-information functions, and the global part is managed by sys:ce-putprop and sys:ce-get. Whenever sys:*compile-file-environment* is set to a compile-file-environment, sys:ce-putprop will store to properties within this environment, rather than in some global manner, for example using (setf get). Also, sys:ce-get will consult this environment and if succesful will return the property stored therein, before then trying to get the property globally.

See environments.htm for more information on environments.

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Created 2019.8.20.