SIGSEGV trying to compile code that uses fn pointers

[mauricioszabo]

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─ jank install ─────────────────────────────────────────────────────────────────────────────────────
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─ ✅ runtime clang resource dir: /usr/local/lib/jank/0.1/lib/clang/22 (found)

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Description of the issue with reproduction steps

This is somewhat related to #589 - I found this issue while trying to work-around the case. Basically, this code:

(ns types)

(cpp/raw "
#ifndef DUP_CODE
#define DUP_CODE

typedef uintptr_t VALUE;

#define ANYARGS ...

static void rb_define_method(VALUE (*func)(ANYARGS), int arity) {
}

static VALUE some_code(VALUE self, VALUE a) {
  return a;
}

#define RBIMPL_CAST(expr) (expr)

#define RUBY_METHOD_FUNC(func) RBIMPL_CAST((VALUE (*)(ANYARGS))(func))

static auto some_code_1 = RUBY_METHOD_FUNC(some_code);

#endif
 ")

(defn -main [ & args]
  (cpp/rb_define_method cpp/some_code_1 (cpp/cast cpp/int  0)))

Fails to compile with Jank:

jank --module-path . compile types
fish: Job 1, 'jank --module-path . compile ty…' terminated by signal SIGSEGV (Address boundary error)

The offending code seems to be this some_code_1 - if I try to use it in a callback fn (to avoid making a wrapper) I'll get this error.

Stack trace

No response