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14 scheme/foreign

The scheme/foreign library re-exports ffi/unsafe, ffi/unsafe/cvector, and ffi/vector, except that unsafe! must be used to import the unsafe bindings of ffi/unsafe and ffi/unsafe/cvector.

Makes unsafe bindings available.

(provide* provide-star-spec ...)
provide-star-spec = (unsafe id)
  | (unsafe (rename-out [id external-id]))
  | provide-spec
Like provide, but ids under unsafe are not actually provided. Instead, they are collected for introduction into an importing module via a macro created by define-unsafer.

Cooperates with provide* to define id as a unsafe!-like form that introduces definitions for each binding provided as unsafe. The define-unsafer form must occur after all the provide* forms to which it refers.