Add automatic generation of headers

- The 'stripdecls.py' script replaces declarations in all headers by includes to
  generated headers.
  `ag '#\s*if(?!ndef NEOVIM_).*((?!#\s*endif).*\n)*#ifdef INCLUDE_GENERATED'`
  was used for this.
- Add and integrate gendeclarations.lua into the build system to generate the
  required includes.
- Add -Wno-unused-function
- Made a bunch of old-style definitions ANSI

This adds a requirement: all type and structure definitions must be present
before INCLUDE_GENERATED_DECLARATIONS-protected include.

Warning: mch_expandpath (path.h.generated.h) was moved manually. So far it is
the only exception.

1 files changed, 5 insertions, 32 deletions

diff --git a/src/nvim/ops.c b/src/nvim/ops.c
index 4c5a9fdf63..1ee1ce6ecc 100644
--- a/src/nvim/ops.c
+++ b/src/nvim/ops.c
@@ -90,30 +90,10 @@ struct block_def {
   colnr_T start_char_vcols;       /* number of vcols of pre-block char */
 };
 
-static void shift_block(oparg_T *oap, int amount);
-static void block_insert(oparg_T *oap, char_u *s, int b_insert,
-                         struct block_def*bdp);
-static int stuff_yank(int, char_u *);
-static void put_reedit_in_typebuf(int silent);
-static int put_in_typebuf(char_u *s, int esc, int colon,
-                          int silent);
-static void stuffescaped(char_u *arg, int literally);
-static void mb_adjust_opend(oparg_T *oap);
-static void free_yank(long);
-static void free_yank_all(void);
-static void yank_copy_line(struct block_def *bd, long y_idx);
-static void dis_msg(char_u *p, int skip_esc);
-static char_u   *skip_comment(char_u *line, int process,
-                              int include_space,
-                              int *is_comment);
-static void block_prep(oparg_T *oap, struct block_def *, linenr_T, int);
-static void str_to_reg(struct yankreg *y_ptr, int type, char_u *str,
-                       long len,
-                       long blocklen);
-static int ends_in_white(linenr_T lnum);
-static int same_leader(linenr_T lnum, int, char_u *, int, char_u *);
-static int fmt_check_par(linenr_T, int *, char_u **, int do_comments);
 
+#ifdef INCLUDE_GENERATED_DECLARATIONS
+# include "ops.c.generated.h"
+#endif
 /*
  * The names of operators.
  * IMPORTANT: Index must correspond with defines in vim.h!!!
@@ -566,9 +546,7 @@ static void block_insert(oparg_T *oap, char_u *s, int b_insert, struct block_def
 /*
  * op_reindent - handle reindenting a block of lines.
  */
-void op_reindent(oap, how)
-oparg_T     *oap;
-int         (*how)(void);
+void op_reindent(oparg_T *oap, Indenter how)
 {
   long i;
   char_u      *l;
@@ -778,7 +756,7 @@ void *
 get_register (
     int name,
     int copy               /* make a copy, if FALSE make register empty. */
-)
+) FUNC_ATTR_NONNULL_RET
 {
   get_yank_register(name, 0);
 
@@ -1861,7 +1839,6 @@ int op_replace(oparg_T *oap, int c)
   return OK;
 }
 
-static int swapchars(int op_type, pos_T *pos, int length);
 
 /*
  * Handle the (non-standard vi) tilde operator.  Also for "gu", "gU" and "g?".
@@ -4193,7 +4170,6 @@ static void block_prep(oparg_T *oap, struct block_def *bdp, linenr_T lnum, int i
   bdp->textstart = pstart;
 }
 
-static void reverse_line(char_u *s);
 
 static void reverse_line(char_u *s)
 {
@@ -4903,9 +4879,6 @@ void clear_oparg(oparg_T *oap)
   memset(oap, 0, sizeof(oparg_T));
 }
 
-static long line_count_info(char_u *line, long *wc, long *cc,
-                            long limit,
-                            int eol_size);
 
 /*
  *  Count the number of bytes, characters and "words" in a line.