refactor: move non-symbols in ex_eval.h to ex_eval_defs.h (#19739)

This avoids including ex_eval.h in any other header, thus preventing
future circular includes.

18 files changed, 110 insertions, 95 deletions

diff --git a/src/nvim/api/command.c b/src/nvim/api/command.c
index d264237e37..e77add6210 100644
--- a/src/nvim/api/command.c
+++ b/src/nvim/api/command.c
@@ -11,6 +11,7 @@
 #include "nvim/api/private/helpers.h"
 #include "nvim/autocmd.h"
 #include "nvim/ex_docmd.h"
+#include "nvim/ex_eval.h"
 #include "nvim/lua/executor.h"
 #include "nvim/ops.h"
 #include "nvim/regexp.h"
diff --git a/src/nvim/api/private/helpers.c b/src/nvim/api/private/helpers.c
index fad75d55be..315df72a53 100644
--- a/src/nvim/api/private/helpers.c
+++ b/src/nvim/api/private/helpers.c
@@ -19,6 +19,7 @@
 #include "nvim/eval.h"
 #include "nvim/eval/typval.h"
 #include "nvim/ex_cmds_defs.h"
+#include "nvim/ex_eval.h"
 #include "nvim/extmark.h"
 #include "nvim/fileio.h"
 #include "nvim/highlight_group.h"
@@ -54,7 +55,7 @@ void try_enter(TryState *const tstate)
   //              save_dbg_stuff()/restore_dbg_stuff().
   *tstate = (TryState) {
     .current_exception = current_exception,
-    .msg_list = (const struct msglist *const *)msg_list,
+    .msg_list = (const msglist_T *const *)msg_list,
     .private_msg_list = NULL,
     .trylevel = trylevel,
     .got_int = got_int,
@@ -89,7 +90,7 @@ bool try_leave(const TryState *const tstate, Error *const err)
   assert(msg_list == &tstate->private_msg_list);
   assert(*msg_list == NULL);
   assert(current_exception == NULL);
-  msg_list = (struct msglist **)tstate->msg_list;
+  msg_list = (msglist_T **)tstate->msg_list;
   current_exception = tstate->current_exception;
   trylevel = tstate->trylevel;
   got_int = tstate->got_int;
diff --git a/src/nvim/api/private/helpers.h b/src/nvim/api/private/helpers.h
index 1441da853c..4608554448 100644
--- a/src/nvim/api/private/helpers.h
+++ b/src/nvim/api/private/helpers.h
@@ -3,7 +3,7 @@
 
 #include "nvim/api/private/defs.h"
 #include "nvim/decoration.h"
-#include "nvim/ex_eval.h"
+#include "nvim/ex_eval_defs.h"
 #include "nvim/getchar.h"
 #include "nvim/lib/kvec.h"
 #include "nvim/memory.h"
@@ -130,8 +130,8 @@ EXTERN PMap(handle_T) tabpage_handles INIT(= MAP_INIT);
 /// processed and that “other VimL code” must not be affected.
 typedef struct {
   except_T *current_exception;
-  struct msglist *private_msg_list;
-  const struct msglist *const *msg_list;
+  msglist_T *private_msg_list;
+  const msglist_T *const *msg_list;
   int trylevel;
   int got_int;
   int need_rethrow;
@@ -144,8 +144,8 @@ typedef struct {
 // TODO(bfredl): prepare error-handling at "top level" (nv_event).
 #define TRY_WRAP(code) \
   do { \
-    struct msglist **saved_msg_list = msg_list; \
-    struct msglist *private_msg_list; \
+    msglist_T **saved_msg_list = msg_list; \
+    msglist_T *private_msg_list; \
     msg_list = &private_msg_list; \
     private_msg_list = NULL; \
     code \
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
index e2f58dba62..2842f3a43b 100644
--- a/src/nvim/api/vim.c
+++ b/src/nvim/api/vim.c
@@ -30,6 +30,7 @@
 #include "nvim/ex_cmds2.h"
 #include "nvim/ex_cmds_defs.h"
 #include "nvim/ex_docmd.h"
+#include "nvim/ex_eval.h"
 #include "nvim/file_search.h"
 #include "nvim/fileio.h"
 #include "nvim/getchar.h"
diff --git a/src/nvim/autocmd.c b/src/nvim/autocmd.c
index 1186eea62c..4ffd7a4850 100644
--- a/src/nvim/autocmd.c
+++ b/src/nvim/autocmd.c
@@ -16,6 +16,7 @@
 #include "nvim/eval/userfunc.h"
 #include "nvim/eval/vars.h"
 #include "nvim/ex_docmd.h"
+#include "nvim/ex_eval.h"
 #include "nvim/ex_getln.h"
 #include "nvim/fileio.h"
 #include "nvim/getchar.h"
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index 42a3c7df80..c08b3e41d4 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -30,6 +30,7 @@
 #include "nvim/eval/userfunc.h"
 #include "nvim/eval/vars.h"
 #include "nvim/ex_cmds2.h"
+#include "nvim/ex_eval.h"
 #include "nvim/ex_getln.h"
 #include "nvim/ex_session.h"
 #include "nvim/fileio.h"
diff --git a/src/nvim/eval/funcs.c b/src/nvim/eval/funcs.c
index 5c21825897..bb3418a392 100644
--- a/src/nvim/eval/funcs.c
+++ b/src/nvim/eval/funcs.c
@@ -28,6 +28,7 @@
 #include "nvim/eval/userfunc.h"
 #include "nvim/eval/vars.h"
 #include "nvim/ex_docmd.h"
+#include "nvim/ex_eval.h"
 #include "nvim/ex_getln.h"
 #include "nvim/file_search.h"
 #include "nvim/fileio.h"
diff --git a/src/nvim/eval/userfunc.c b/src/nvim/eval/userfunc.c
index 72a8c45326..6c437c1ff4 100644
--- a/src/nvim/eval/userfunc.c
+++ b/src/nvim/eval/userfunc.c
@@ -14,6 +14,7 @@
 #include "nvim/eval/vars.h"
 #include "nvim/ex_cmds2.h"
 #include "nvim/ex_docmd.h"
+#include "nvim/ex_eval.h"
 #include "nvim/ex_getln.h"
 #include "nvim/fileio.h"
 #include "nvim/getchar.h"
diff --git a/src/nvim/eval/vars.c b/src/nvim/eval/vars.c
index cf2755f639..ffaf636208 100644
--- a/src/nvim/eval/vars.c
+++ b/src/nvim/eval/vars.c
@@ -15,6 +15,7 @@
 #include "nvim/eval/vars.h"
 #include "nvim/ex_cmds.h"
 #include "nvim/ex_docmd.h"
+#include "nvim/ex_eval.h"
 #include "nvim/ops.h"
 #include "nvim/option.h"
 #include "nvim/search.h"
diff --git a/src/nvim/ex_docmd.c b/src/nvim/ex_docmd.c
index e482c9e9cf..f4a0f462e2 100644
--- a/src/nvim/ex_docmd.c
+++ b/src/nvim/ex_docmd.c
@@ -321,8 +321,8 @@ int do_cmdline(char *cmdline, LineGetter fgetline, void *cookie, int flags)
   int *dbg_tick = NULL;            // ptr to dbg_tick field in cookie
   struct dbg_stuff debug_saved;         // saved things for debug mode
   int initial_trylevel;
-  struct msglist **saved_msg_list = NULL;
-  struct msglist *private_msg_list;
+  msglist_T **saved_msg_list = NULL;
+  msglist_T *private_msg_list;
 
   // "fgetline" and "cookie" passed to do_one_cmd()
   char *(*cmd_getline)(int, void *, int, bool);
@@ -802,8 +802,8 @@ int do_cmdline(char *cmdline, LineGetter fgetline, void *cookie, int flags)
       char *p = NULL;
       char *saved_sourcing_name;
       linenr_T saved_sourcing_lnum;
-      struct msglist *messages = NULL;
-      struct msglist *next;
+      msglist_T *messages = NULL;
+      msglist_T *next;
 
       /*
        * If the uncaught exception is a user exception, report it as an
diff --git a/src/nvim/ex_eval.c b/src/nvim/ex_eval.c
index f67c8a6720..4e50a51a8a 100644
--- a/src/nvim/ex_eval.c
+++ b/src/nvim/ex_eval.c
@@ -151,8 +151,8 @@ int aborted_in_try(void)
 bool cause_errthrow(const char *mesg, bool severe, bool *ignore)
   FUNC_ATTR_NONNULL_ALL
 {
-  struct msglist *elem;
-  struct msglist **plist;
+  msglist_T *elem;
+  msglist_T **plist;
 
   /*
    * Do nothing when displaying the interrupt message or reporting an
@@ -254,7 +254,7 @@ bool cause_errthrow(const char *mesg, bool severe, bool *ignore)
         plist = &(*plist)->next;
       }
 
-      elem = xmalloc(sizeof(struct msglist));
+      elem = xmalloc(sizeof(msglist_T));
       elem->msg = xstrdup(mesg);
       elem->next = NULL;
       elem->throw_msg = NULL;
@@ -281,9 +281,9 @@ bool cause_errthrow(const char *mesg, bool severe, bool *ignore)
 }
 
 /// Free a "msg_list" and the messages it contains.
-static void free_msglist(struct msglist *l)
+static void free_msglist(msglist_T *l)
 {
-  struct msglist *messages, *next;
+  msglist_T *messages, *next;
 
   messages = l;
   while (messages != NULL) {
@@ -389,7 +389,7 @@ char *get_exception_string(void *value, except_type_T type, char *cmdname, int *
 
   if (type == ET_ERROR) {
     *should_free = true;
-    mesg = ((struct msglist *)value)->throw_msg;
+    mesg = ((msglist_T *)value)->throw_msg;
     if (cmdname != NULL && *cmdname != NUL) {
       size_t cmdlen = STRLEN(cmdname);
       ret = xstrnsave("Vim(", 4 + cmdlen + 2 + STRLEN(mesg));
@@ -469,7 +469,7 @@ static int throw_exception(void *value, except_type_T type, char *cmdname)
   if (type == ET_ERROR) {
     // Store the original message and prefix the exception value with
     // "Vim:" or, if a command name is given, "Vim(cmdname):".
-    excp->messages = (struct msglist *)value;
+    excp->messages = (msglist_T *)value;
   }
 
   excp->value = get_exception_string(value, type, cmdname, &should_free);
diff --git a/src/nvim/ex_eval.h b/src/nvim/ex_eval.h
index 235875fb91..9e3ac5e9c1 100644
--- a/src/nvim/ex_eval.h
+++ b/src/nvim/ex_eval.h
@@ -2,81 +2,7 @@
 #define NVIM_EX_EVAL_H
 
 #include "nvim/ex_cmds_defs.h"  // for exarg_T
-#include "nvim/pos.h"           // for linenr_T
-
-/* There is no CSF_IF, the lack of CSF_WHILE, CSF_FOR and CSF_TRY means ":if"
- * was used. */
-#define CSF_TRUE       0x0001  // condition was TRUE
-#define CSF_ACTIVE     0x0002  // current state is active
-#define CSF_ELSE       0x0004  // ":else" has been passed
-#define CSF_WHILE      0x0008  // is a ":while"
-#define CSF_FOR        0x0010  // is a ":for"
-
-#define CSF_TRY        0x0100  // is a ":try"
-#define CSF_FINALLY    0x0200  // ":finally" has been passed
-#define CSF_THROWN     0x0800  // exception thrown to this try conditional
-#define CSF_CAUGHT     0x1000  // exception caught by this try conditional
-#define CSF_FINISHED   0x2000  // CSF_CAUGHT was handled by finish_exception()
-#define CSF_SILENT     0x4000  // "emsg_silent" reset by ":try"
-// Note that CSF_ELSE is only used when CSF_TRY and CSF_WHILE are unset
-// (an ":if"), and CSF_SILENT is only used when CSF_TRY is set.
-
-/*
- * What's pending for being reactivated at the ":endtry" of this try
- * conditional:
- */
-#define CSTP_NONE      0       // nothing pending in ":finally" clause
-#define CSTP_ERROR     1       // an error is pending
-#define CSTP_INTERRUPT 2       // an interrupt is pending
-#define CSTP_THROW     4       // a throw is pending
-#define CSTP_BREAK     8       // ":break" is pending
-#define CSTP_CONTINUE  16      // ":continue" is pending
-#define CSTP_RETURN    24      // ":return" is pending
-#define CSTP_FINISH    32      // ":finish" is pending
-
-/*
- * A list of error messages that can be converted to an exception.  "throw_msg"
- * is only set in the first element of the list.  Usually, it points to the
- * original message stored in that element, but sometimes it points to a later
- * message in the list.  See cause_errthrow() below.
- */
-struct msglist {
-  char *msg;             // original message
-  char *throw_msg;       // msg to throw: usually original one
-  struct msglist *next;            // next of several messages in a row
-};
-
-// The exception types.
-typedef enum {
-  ET_USER,       // exception caused by ":throw" command
-  ET_ERROR,      // error exception
-  ET_INTERRUPT,  // interrupt exception triggered by Ctrl-C
-} except_type_T;
-
-/*
- * Structure describing an exception.
- * (don't use "struct exception", it's used by the math library).
- */
-typedef struct vim_exception except_T;
-struct vim_exception {
-  except_type_T type;                   // exception type
-  char *value;           // exception value
-  struct msglist *messages;        // message(s) causing error exception
-  char *throw_name;      // name of the throw point
-  linenr_T throw_lnum;                  // line number of the throw point
-  except_T *caught;          // next exception on the caught stack
-};
-
-/*
- * Structure to save the error/interrupt/exception state between calls to
- * enter_cleanup() and leave_cleanup().  Must be allocated as an automatic
- * variable by the (common) caller of these functions.
- */
-typedef struct cleanup_stuff cleanup_T;
-struct cleanup_stuff {
-  int pending;                  // error/interrupt/exception state
-  except_T *exception;          // exception value
-};
+#include "nvim/ex_eval_defs.h"
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
 # include "ex_eval.h.generated.h"
diff --git a/src/nvim/ex_eval_defs.h b/src/nvim/ex_eval_defs.h
new file mode 100644
index 0000000000..75150d6da4
--- /dev/null
+++ b/src/nvim/ex_eval_defs.h
@@ -0,0 +1,77 @@
+#ifndef NVIM_EX_EVAL_DEFS_H
+#define NVIM_EX_EVAL_DEFS_H
+
+#include "nvim/pos.h"           // for linenr_T
+
+/// There is no CSF_IF, the lack of CSF_WHILE, CSF_FOR and CSF_TRY means ":if"
+/// was used.
+enum {
+  CSF_TRUE     = 0x0001,  ///< condition was TRUE
+  CSF_ACTIVE   = 0x0002,  ///< current state is active
+  CSF_ELSE     = 0x0004,  ///< ":else" has been passed
+  CSF_WHILE    = 0x0008,  ///< is a ":while"
+  CSF_FOR      = 0x0010,  ///< is a ":for"
+
+  CSF_TRY      = 0x0100,  ///< is a ":try"
+  CSF_FINALLY  = 0x0200,  ///< ":finally" has been passed
+  CSF_THROWN   = 0x0800,  ///< exception thrown to this try conditional
+  CSF_CAUGHT   = 0x1000,  ///< exception caught by this try conditional
+  CSF_FINISHED = 0x2000,  ///< CSF_CAUGHT was handled by finish_exception()
+  CSF_SILENT   = 0x4000,  ///< "emsg_silent" reset by ":try"
+};
+// Note that CSF_ELSE is only used when CSF_TRY and CSF_WHILE are unset
+// (an ":if"), and CSF_SILENT is only used when CSF_TRY is set.
+
+/// What's pending for being reactivated at the ":endtry" of this try
+/// conditional:
+enum {
+  CSTP_NONE      = 0,   ///< nothing pending in ":finally" clause
+  CSTP_ERROR     = 1,   ///< an error is pending
+  CSTP_INTERRUPT = 2,   ///< an interrupt is pending
+  CSTP_THROW     = 4,   ///< a throw is pending
+  CSTP_BREAK     = 8,   ///< ":break" is pending
+  CSTP_CONTINUE  = 16,  ///< ":continue" is pending
+  CSTP_RETURN    = 24,  ///< ":return" is pending
+  CSTP_FINISH    = 32,  ///< ":finish" is pending
+};
+
+/// A list of error messages that can be converted to an exception.  "throw_msg"
+/// is only set in the first element of the list.  Usually, it points to the
+/// original message stored in that element, but sometimes it points to a later
+/// message in the list.  See cause_errthrow() below.
+typedef struct msglist msglist_T;
+struct msglist {
+  char *msg;        ///< original message
+  char *throw_msg;  ///< msg to throw: usually original one
+  msglist_T *next;  ///< next of several messages in a row
+};
+
+/// The exception types.
+typedef enum {
+  ET_USER,       ///< exception caused by ":throw" command
+  ET_ERROR,      ///< error exception
+  ET_INTERRUPT,  ///< interrupt exception triggered by Ctrl-C
+} except_type_T;
+
+/// Structure describing an exception.
+/// (don't use "struct exception", it's used by the math library).
+typedef struct vim_exception except_T;
+struct vim_exception {
+  except_type_T type;   ///< exception type
+  char *value;          ///< exception value
+  msglist_T *messages;  ///< message(s) causing error exception
+  char *throw_name;     ///< name of the throw point
+  linenr_T throw_lnum;  ///< line number of the throw point
+  except_T *caught;     ///< next exception on the caught stack
+};
+
+/// Structure to save the error/interrupt/exception state between calls to
+/// enter_cleanup() and leave_cleanup().  Must be allocated as an automatic
+/// variable by the (common) caller of these functions.
+typedef struct cleanup_stuff cleanup_T;
+struct cleanup_stuff {
+  int pending;          ///< error/interrupt/exception state
+  except_T *exception;  ///< exception value
+};
+
+#endif  // NVIM_EX_EVAL_DEFS_H
diff --git a/src/nvim/globals.h b/src/nvim/globals.h
index 317423ffa0..199dd7e8e2 100644
--- a/src/nvim/globals.h
+++ b/src/nvim/globals.h
@@ -6,7 +6,7 @@
 
 #include "nvim/ascii.h"
 #include "nvim/event/loop.h"
-#include "nvim/ex_eval.h"
+#include "nvim/ex_eval_defs.h"
 #include "nvim/iconv.h"
 #include "nvim/macros.h"
 #include "nvim/mbyte.h"
@@ -296,7 +296,7 @@ EXTERN int force_abort INIT(= false);
 /// same as the "msg" field of that element, but can be identical to the "msg"
 /// field of a later list element, when the "emsg_severe" flag was set when the
 /// emsg() call was made.
-EXTERN struct msglist **msg_list INIT(= NULL);
+EXTERN msglist_T **msg_list INIT(= NULL);
 
 /// When set, don't convert an error to an exception.  Used when displaying the
 /// interrupt message or reporting an exception that is still uncaught at the
diff --git a/src/nvim/if_cscope.c b/src/nvim/if_cscope.c
index 8d08c2fc19..e8bf528f4e 100644
--- a/src/nvim/if_cscope.c
+++ b/src/nvim/if_cscope.c
@@ -21,6 +21,7 @@
 #include "nvim/buffer.h"
 #include "nvim/charset.h"
 #include "nvim/event/stream.h"
+#include "nvim/ex_eval.h"
 #include "nvim/fileio.h"
 #include "nvim/if_cscope.h"
 #include "nvim/memory.h"
diff --git a/src/nvim/insexpand.c b/src/nvim/insexpand.c
index bddeee119d..581ba853a2 100644
--- a/src/nvim/insexpand.c
+++ b/src/nvim/insexpand.c
@@ -17,6 +17,7 @@
 #include "nvim/eval.h"
 #include "nvim/eval/typval.h"
 #include "nvim/ex_docmd.h"
+#include "nvim/ex_eval.h"
 #include "nvim/ex_getln.h"
 #include "nvim/fileio.h"
 #include "nvim/getchar.h"
diff --git a/src/nvim/lua/stdlib.c b/src/nvim/lua/stdlib.c
index 6ba0056f48..f9592919ea 100644
--- a/src/nvim/lua/stdlib.c
+++ b/src/nvim/lua/stdlib.c
@@ -20,6 +20,7 @@
 #include "nvim/event/loop.h"
 #include "nvim/event/time.h"
 #include "nvim/ex_cmds2.h"
+#include "nvim/ex_eval.h"
 #include "nvim/ex_getln.h"
 #include "nvim/extmark.h"
 #include "nvim/func_attr.h"
diff --git a/src/nvim/runtime.c b/src/nvim/runtime.c
index fc88babfc9..394fe351c6 100644
--- a/src/nvim/runtime.c
+++ b/src/nvim/runtime.c
@@ -14,6 +14,7 @@
 #include "nvim/eval/userfunc.h"
 #include "nvim/ex_cmds.h"
 #include "nvim/ex_cmds2.h"
+#include "nvim/ex_eval.h"
 #include "nvim/ex_getln.h"
 #include "nvim/lua/executor.h"
 #include "nvim/memline.h"