patch 8.2.2193: Vim9: can change constant in :def function Commit: https://github.com/vim/vim/commit/3bdc90b7dfab314768a8f56454ea62929524f05c Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 22 20:35:40 2020 +0100 patch 8.2.2193: Vim9: can change constant in :def function Problem: Vim9: can change constant in :def function. Solution: Check if a variable is locked. (issue https://github.com/vim/vim/issues/7526)

/* 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 : */