emits C argument list from a fn args vector

emits C forward declarations from a collection of fn/fn:> forms

emits a single C forward declaration from a fn/fn:> form

checks if a form is a C FFI function declaration

identifies C FFI blocks that should not be rewritten by the Lua lambda hoisting stage. Both the %.c grammar macro and the @.c reader shorthand (which becomes !:lang {:lang :c} at the input stage) are recognised.

collects fn/fn:> forms, descending into nested do blocks

sanitizes a symbol for use in C

coerces a C type annotation to a string