patch 8.1.1766: code for writing session file is spread out commit https://github.com/vim/vim/commit/845380791196aec7f991987ebf7b22de3779d106 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jul 28 14:15:42 2019 +0200 patch 8.1.1766: code for writing session file is spread out Problem: Code for writing session file is spread out. Solution: Put it in one file. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/4728)

/* if_ruby.c */
int ruby_enabled(int verbose);
void ruby_end(void);
void ex_ruby(exarg_T *eap);
void ex_rubydo(exarg_T *eap);
void ex_rubyfile(exarg_T *eap);
void ruby_buffer_free(buf_T *buf);
void ruby_window_free(win_T *win);
void vim_ruby_init(void *stack_start);
void do_rubyeval(char_u *str, typval_T *rettv);
/* vim: set ft=c : */