Add :single module compile time flag
#15425
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also uses a specific name to not override the `#single_module?` accessor (used to clone a host compiler for macro runs).
ysbaddaden
commented
Feb 6, 2025
This isn't neded, and it's always overriden by the call to `compiler.release!` a few lines below anyway.
The object now has methods to set cross compiler and add emit targets; they're responsible from enabling the single module property. We thus no longer need the two query methods.
straight-shoota
approved these changes
Feb 7, 2025
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Just like the
:releaseflag it can be useful to know during macros if we're compiling to a single module.For example alongside the
Linkageannotation, we would be able to mark the__crystal_*functions as internal only when compiling to a single module. For example:{% if flag?(:single_module) %} @[Linkage("internal")] {% end %} fun __crystal_once_init : Nil endRelated to #15426