refactor: move non-symbols to defs.h headers

src/nvim/message.h

@@ -1,53 +1,12 @@
 #pragma once
 
-#include <errno.h>
 #include <stdbool.h>
 #include <stddef.h>  // IWYU pragma: keep
-#include <stdio.h>
 
-#include "klib/kvec.h"
-#include "nvim/api/private/defs.h"
 #include "nvim/ex_cmds_defs.h"  // IWYU pragma: keep
 #include "nvim/grid_defs.h"
 #include "nvim/macros_defs.h"
-
-/// Types of dialogs passed to do_dialog().
-enum {
-  VIM_GENERIC   = 0,
-  VIM_ERROR     = 1,
-  VIM_WARNING   = 2,
-  VIM_INFO      = 3,
-  VIM_QUESTION  = 4,
-  VIM_LAST_TYPE = 4,  ///< sentinel value
-};
-
-/// Return values for functions like vim_dialogyesno()
-enum {
-  VIM_YES        = 2,
-  VIM_NO         = 3,
-  VIM_CANCEL     = 4,
-  VIM_ALL        = 5,
-  VIM_DISCARDALL = 6,
-};
-
-enum { MSG_HIST = 0x1000, };  ///< special attribute addition: Put message in history
-
-typedef struct {
-  String text;
-  int attr;
-} HlMessageChunk;
-
-typedef kvec_t(HlMessageChunk) HlMessage;
-
-/// Message history for `:messages`
-typedef struct msg_hist {
-  struct msg_hist *next;  ///< Next message.
-  char *msg;              ///< Message text.
-  const char *kind;       ///< Message kind (for msg_ext)
-  int attr;               ///< Message highlighting.
-  bool multiline;         ///< Multiline message.
-  HlMessage multiattr;    ///< multiattr message.
-} MessageHistoryEntry;
+#include "nvim/message_defs.h"  // IWYU pragma: export
 
 /// First message
 extern MessageHistoryEntry *first_msg_hist;
@@ -79,14 +38,3 @@ EXTERN int msg_listdo_overwrite INIT( = 0);
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "message.h.generated.h"
 #endif
-
-// Prefer using semsg(), because perror() may send the output to the wrong
-// destination and mess up the screen.
-#define PERROR(msg) (void)semsg("%s: %s", (msg), strerror(errno))
-
-#ifndef MSWIN
-/// Headless (no UI) error message handler.
-# define os_errmsg(str)        fprintf(stderr, "%s", (str))
-/// Headless (no UI) message handler.
-# define os_msg(str)           printf("%s", (str))
-#endif