# HG changeset patch # User Christian Brabandt # Date 1468773005 -7200 # Node ID 86af4a48c00a6a0f7942faa6eb1ba7cf9f961c00 # Parent 8b20e3f947c7a34121ae1a2f2249eb394ad1fd8c commit https://github.com/vim/vim/commit/a9b579f3d7463720a316e11e77a7a9fbb9267986 Author: Bram Moolenaar Date: Sun Jul 17 18:29:19 2016 +0200 patch 7.4.2058 Problem: eval.c is too big. Solution: Move user functions to userfunc.c diff --git a/Filelist b/Filelist --- a/Filelist +++ b/Filelist @@ -84,6 +84,7 @@ SRC_ALL = \ src/termlib.c \ src/ui.c \ src/undo.c \ + src/userfunc.c \ src/version.c \ src/version.h \ src/vim.h \ @@ -175,6 +176,7 @@ SRC_ALL = \ src/proto/termlib.pro \ src/proto/ui.pro \ src/proto/undo.pro \ + src/proto/userfunc.pro \ src/proto/version.pro \ src/proto/winclip.pro \ src/proto/window.pro \ diff --git a/src/Makefile b/src/Makefile --- a/src/Makefile +++ b/src/Makefile @@ -1531,6 +1531,7 @@ BASIC_SRC = \ term.c \ ui.c \ undo.c \ + userfunc.c \ version.c \ window.c \ $(OS_EXTRA_SRC) @@ -1631,6 +1632,7 @@ OBJ_COMMON = \ objects/term.o \ objects/ui.o \ objects/undo.o \ + objects/userfunc.o \ objects/version.o \ objects/window.o \ $(GUI_OBJ) \ @@ -1731,6 +1733,7 @@ PRO_AUTO = \ termlib.pro \ ui.pro \ undo.pro \ + userfunc.pro \ version.pro \ window.pro \ gui_beval.pro \ @@ -3066,6 +3069,9 @@ objects/ui.o: ui.c objects/undo.o: undo.c $(CCC) -o $@ undo.c +objects/userfunc.o: userfunc.c + $(CCC) -o $@ userfunc.c + objects/window.o: window.c $(CCC) -o $@ window.c @@ -3379,6 +3385,10 @@ objects/undo.o: undo.c vim.h auto/config ascii.h keymap.h term.h macros.h option.h structs.h regexp.h gui.h \ gui_beval.h proto/gui_beval.pro alloc.h ex_cmds.h proto.h globals.h \ farsi.h arabic.h +objects/userfunc.o: userfunc.c vim.h auto/config.h feature.h os_unix.h auto/osdef.h \ + ascii.h keymap.h term.h macros.h option.h structs.h regexp.h gui.h \ + gui_beval.h proto/gui_beval.pro alloc.h ex_cmds.h proto.h globals.h \ + farsi.h arabic.h objects/version.o: version.c vim.h auto/config.h feature.h os_unix.h auto/osdef.h \ ascii.h keymap.h term.h macros.h option.h structs.h regexp.h gui.h \ gui_beval.h proto/gui_beval.pro alloc.h ex_cmds.h proto.h globals.h \ diff --git a/src/eval.c b/src/eval.c --- a/src/eval.c +++ b/src/eval.c @@ -30,54 +30,6 @@ #define DICT_MAXNEST 100 /* maximum nesting of lists and dicts */ -#define DO_NOT_FREE_CNT 99999 /* refcount for dict or list that should not - be freed. */ - -/* - * Structure returned by get_lval() and used by set_var_lval(). - * For a plain name: - * "name" points to the variable name. - * "exp_name" is NULL. - * "tv" is NULL - * For a magic braces name: - * "name" points to the expanded variable name. - * "exp_name" is non-NULL, to be freed later. - * "tv" is NULL - * For an index in a list: - * "name" points to the (expanded) variable name. - * "exp_name" NULL or non-NULL, to be freed later. - * "tv" points to the (first) list item value - * "li" points to the (first) list item - * "range", "n1", "n2" and "empty2" indicate what items are used. - * For an existing Dict item: - * "name" points to the (expanded) variable name. - * "exp_name" NULL or non-NULL, to be freed later. - * "tv" points to the dict item value - * "newkey" is NULL - * For a non-existing Dict item: - * "name" points to the (expanded) variable name. - * "exp_name" NULL or non-NULL, to be freed later. - * "tv" points to the Dictionary typval_T - * "newkey" is the key for the new item. - */ -typedef struct lval_S -{ - char_u *ll_name; /* start of variable name (can be NULL) */ - char_u *ll_exp_name; /* NULL or expanded name in allocated memory. */ - typval_T *ll_tv; /* Typeval of item being used. If "newkey" - isn't NULL it's the Dict to which to add - the item. */ - listitem_T *ll_li; /* The list item or NULL. */ - list_T *ll_list; /* The list or NULL. */ - int ll_range; /* TRUE when a [i:j] range was used */ - long ll_n1; /* First index for list */ - long ll_n2; /* Second index for list range */ - int ll_empty2; /* Second index is empty: [i:] */ - dict_T *ll_dict; /* The Dictionary or NULL */ - dictitem_T *ll_di; /* The dictitem or NULL */ - char_u *ll_newkey; /* New key for Dict in alloc. mem or NULL. */ -} lval_T; - static char *e_letunexp = N_("E18: Unexpected characters in :let"); static char *e_undefvar = N_("E121: Undefined variable: %s"); static char *e_missbrac = N_("E111: Missing ']'"); @@ -87,14 +39,8 @@ static char *e_listreq = N_("E714: List #ifdef FEAT_QUICKFIX static char *e_stringreq = N_("E928: String required"); #endif -static char *e_toomanyarg = N_("E118: Too many arguments for function: %s"); -static char *e_dictkey = N_("E716: Key not present in Dictionary: %s"); -static char *e_funcexts = N_("E122: Function %s already exists, add ! to replace it"); -static char *e_funcdict = N_("E717: Dictionary entry already exists"); -static char *e_funcref = N_("E718: Funcref required"); static char *e_dictrange = N_("E719: Cannot use [:] with a Dictionary"); static char *e_letwrong = N_("E734: Wrong variable type for %s="); -static char *e_nofunc = N_("E130: Unknown function: %s"); static char *e_illvar = N_("E461: Illegal variable name: %s"); #ifdef FEAT_FLOAT static char *e_float_as_string = N_("E806: using Float as a String"); @@ -134,107 +80,9 @@ static garray_T ga_scripts = {0, 0, static int echo_attr = 0; /* attributes used for ":echo" */ -/* Values for trans_function_name() argument: */ -#define TFN_INT 1 /* internal function name OK */ -#define TFN_QUIET 2 /* no error messages */ -#define TFN_NO_AUTOLOAD 4 /* do not use script autoloading */ - -/* Values for get_lval() flags argument: */ -#define GLV_QUIET TFN_QUIET /* no error messages */ -#define GLV_NO_AUTOLOAD TFN_NO_AUTOLOAD /* do not use script autoloading */ - -/* - * Structure to hold info for a user function. - */ -typedef struct ufunc ufunc_T; - -struct ufunc -{ - int uf_varargs; /* variable nr of arguments */ - int uf_flags; - int uf_calls; /* nr of active calls */ - garray_T uf_args; /* arguments */ - garray_T uf_lines; /* function lines */ -#ifdef FEAT_PROFILE - int uf_profiling; /* TRUE when func is being profiled */ - /* profiling the function as a whole */ - int uf_tm_count; /* nr of calls */ - proftime_T uf_tm_total; /* time spent in function + children */ - proftime_T uf_tm_self; /* time spent in function itself */ - proftime_T uf_tm_children; /* time spent in children this call */ - /* profiling the function per line */ - int *uf_tml_count; /* nr of times line was executed */ - proftime_T *uf_tml_total; /* time spent in a line + children */ - proftime_T *uf_tml_self; /* time spent in a line itself */ - proftime_T uf_tml_start; /* start time for current line */ - proftime_T uf_tml_children; /* time spent in children for this line */ - proftime_T uf_tml_wait; /* start wait time for current line */ - int uf_tml_idx; /* index of line being timed; -1 if none */ - int uf_tml_execed; /* line being timed was executed */ -#endif - scid_T uf_script_ID; /* ID of script where function was defined, - used for s: variables */ - int uf_refcount; /* for numbered function: reference count */ - char_u uf_name[1]; /* name of function (actually longer); can - start with 123_ ( is K_SPECIAL - KS_EXTRA KE_SNR) */ -}; - -/* function flags */ -#define FC_ABORT 1 /* abort function on error */ -#define FC_RANGE 2 /* function accepts range */ -#define FC_DICT 4 /* Dict function, uses "self" */ - -/* - * All user-defined functions are found in this hashtable. - */ -static hashtab_T func_hashtab; - /* The names of packages that once were loaded are remembered. */ static garray_T ga_loaded = {0, 0, sizeof(char_u *), 4, NULL}; -/* From user function to hashitem and back. */ -static ufunc_T dumuf; -#define UF2HIKEY(fp) ((fp)->uf_name) -#define HIKEY2UF(p) ((ufunc_T *)(p - (dumuf.uf_name - (char_u *)&dumuf))) -#define HI2UF(hi) HIKEY2UF((hi)->hi_key) - -#define FUNCARG(fp, j) ((char_u **)(fp->uf_args.ga_data))[j] -#define FUNCLINE(fp, j) ((char_u **)(fp->uf_lines.ga_data))[j] - -#define MAX_FUNC_ARGS 20 /* maximum number of function arguments */ -#define VAR_SHORT_LEN 20 /* short variable name length */ -#define FIXVAR_CNT 12 /* number of fixed variables */ - -/* structure to hold info for a function that is currently being executed. */ -typedef struct funccall_S funccall_T; - -struct funccall_S -{ - ufunc_T *func; /* function being called */ - int linenr; /* next line to be executed */ - int returned; /* ":return" used */ - struct /* fixed variables for arguments */ - { - dictitem_T var; /* variable (without room for name) */ - char_u room[VAR_SHORT_LEN]; /* room for the name */ - } fixvar[FIXVAR_CNT]; - dict_T l_vars; /* l: local function variables */ - dictitem_T l_vars_var; /* variable for l: scope */ - dict_T l_avars; /* a: argument variables */ - dictitem_T l_avars_var; /* variable for a: scope */ - list_T l_varlist; /* list for a:000 */ - listitem_T l_listitems[MAX_FUNC_ARGS]; /* listitems for a:000 */ - typval_T *rettv; /* return value */ - linenr_T breakpoint; /* next line with breakpoint or zero */ - int dbg_tick; /* debug_tick when breakpoint was set */ - int level; /* top nesting level of executed function */ -#ifdef FEAT_PROFILE - proftime_T prof_child; /* time spent in a child */ -#endif - funccall_T *caller; /* calling function or NULL */ -}; - /* * Info used by a ":for" loop. */ @@ -246,16 +94,6 @@ typedef struct list_T *fi_list; /* list being used */ } forinfo_T; -/* - * Struct used by trans_function_name() - */ -typedef struct -{ - dict_T *fd_dict; /* Dictionary used */ - char_u *fd_newkey; /* new key in "dict" in allocated memory */ - dictitem_T *fd_di; /* Dictionary item used */ -} funcdict_T; - /* * Array to hold the value of v: variables. @@ -373,7 +211,6 @@ static void restore_vimvar(int idx, typv static int ex_let_vars(char_u *arg, typval_T *tv, int copy, int semicolon, int var_count, char_u *nextchars); static char_u *skip_var_list(char_u *arg, int *var_count, int *semicolon); static char_u *skip_var_one(char_u *arg); -static void list_hashtable_vars(hashtab_T *ht, char_u *prefix, int empty, int *first); static void list_glob_vars(int *first); static void list_buf_vars(int *first); static void list_win_vars(int *first); @@ -382,12 +219,9 @@ static void list_tab_vars(int *first); #endif static void list_vim_vars(int *first); static void list_script_vars(int *first); -static void list_func_vars(int *first); static char_u *list_arg_vars(exarg_T *eap, char_u *arg, int *first); static char_u *ex_let_one(char_u *arg, typval_T *tv, int copy, char_u *endchars, char_u *op); static int check_changedtick(char_u *arg); -static char_u *get_lval(char_u *name, typval_T *rettv, lval_T *lp, int unlet, int skip, int flags, int fne_flags); -static void clear_lval(lval_T *lp); static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv, int copy, char_u *op); static int tv_op(typval_T *tv1, typval_T *tv2, char_u *op); static void ex_unletlock(exarg_T *eap, char_u *argstart, int deep); @@ -396,7 +230,6 @@ static int do_lock_var(lval_T *lp, char_ static void item_lock(typval_T *tv, int deep, int lock); static int tv_islocked(typval_T *tv); -static int eval0(char_u *arg, typval_T *rettv, char_u **nextcmd, int evaluate); static int eval2(char_u **arg, typval_T *rettv, int evaluate); static int eval3(char_u **arg, typval_T *rettv, int evaluate); static int eval4(char_u **arg, typval_T *rettv, int evaluate); @@ -409,14 +242,7 @@ static int get_option_tv(char_u **arg, t static int get_string_tv(char_u **arg, typval_T *rettv, int evaluate); static int get_lit_string_tv(char_u **arg, typval_T *rettv, int evaluate); static int free_unref_items(int copyID); -static int get_function_args(char_u **argp, char_u endchar, garray_T *newargs, int *varargs, int skip); -static int get_lambda_tv(char_u **arg, typval_T *rettv, int evaluate); -static char_u *echo_string(typval_T *tv, char_u **tofree, char_u *numbuf, int copyID); static int get_env_tv(char_u **arg, typval_T *rettv, int evaluate); -static int find_internal_func(char_u *name); -static char_u *deref_func_name(char_u *name, int *lenp, partial_T **partial, int no_autoload); -static int get_func_tv(char_u *name, int len, typval_T *rettv, char_u **arg, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, partial_T *partial, dict_T *selfdict); -static void emsg_funcname(char *ermsg, char_u *name); static int non_zero_arg(typval_T *argvars); #ifdef FEAT_FLOAT @@ -818,17 +644,9 @@ static void f_xor(typval_T *argvars, typ static int list2fpos(typval_T *arg, pos_T *posp, int *fnump, colnr_T *curswantp); static pos_T *var2fpos(typval_T *varp, int dollar_lnum, int *fnum); static int get_env_len(char_u **arg); -static int get_id_len(char_u **arg); static int get_name_len(char_u **arg, char_u **alias, int evaluate, int verbose); -static char_u *find_name_end(char_u *arg, char_u **expr_start, char_u **expr_end, int flags); -#define FNE_INCL_BR 1 /* find_name_end(): include [] in name */ -#define FNE_CHECK_START 2 /* find_name_end(): check name starts with - valid character */ static char_u * make_expanded_name(char_u *in_start, char_u *expr_start, char_u *expr_end, char_u *in_end); -static int eval_isnamec(int c); -static int eval_isnamec1(int c); static int get_var_tv(char_u *name, int len, typval_T *rettv, dictitem_T **dip, int verbose, int no_autoload); -static int handle_subscript(char_u **arg, typval_T *rettv, int evaluate, int verbose); static typval_T *alloc_string_tv(char_u *string); static void init_tv(typval_T *varp); #ifdef FEAT_FLOAT @@ -836,47 +654,14 @@ static float_T get_tv_float(typval_T *va #endif static linenr_T get_tv_lnum(typval_T *argvars); static linenr_T get_tv_lnum_buf(typval_T *argvars, buf_T *buf); -static dictitem_T *find_var(char_u *name, hashtab_T **htp, int no_autoload); static dictitem_T *find_var_in_ht(hashtab_T *ht, int htname, char_u *varname, int no_autoload); static hashtab_T *find_var_ht(char_u *name, char_u **varname); -static funccall_T *get_funccal(void); -static void vars_clear_ext(hashtab_T *ht, int free_val); static void delete_var(hashtab_T *ht, hashitem_T *hi); static void list_one_var(dictitem_T *v, char_u *prefix, int *first); static void list_one_var_a(char_u *prefix, char_u *name, int type, char_u *string, int *first); static void set_var(char_u *name, typval_T *varp, int copy); static int var_check_fixed(int flags, char_u *name, int use_gettext); static char_u *find_option_end(char_u **arg, int *opt_flags); -static char_u *trans_function_name(char_u **pp, int skip, int flags, funcdict_T *fd, partial_T **partial); -static int eval_fname_script(char_u *p); -static int eval_fname_sid(char_u *p); -static void list_func_head(ufunc_T *fp, int indent); -static ufunc_T *find_func(char_u *name); -static int function_exists(char_u *name); -static int builtin_function(char_u *name, int len); -#ifdef FEAT_PROFILE -static void func_do_profile(ufunc_T *fp); -static void prof_sort_list(FILE *fd, ufunc_T **sorttab, int st_len, char *title, int prefer_self); -static void prof_func_line(FILE *fd, int count, proftime_T *total, proftime_T *self, int prefer_self); -static int -# ifdef __BORLANDC__ - _RTLENTRYF -# endif - prof_total_cmp(const void *s1, const void *s2); -static int -# ifdef __BORLANDC__ - _RTLENTRYF -# endif - prof_self_cmp(const void *s1, const void *s2); -#endif -static int script_autoload(char_u *name, int reload); -static char_u *autoload_name(char_u *name); -static void cat_func_name(char_u *buf, ufunc_T *fp); -static void func_free(ufunc_T *fp); -static void call_user_func(ufunc_T *fp, int argcount, typval_T *argvars, typval_T *rettv, linenr_T firstline, linenr_T lastline, dict_T *selfdict); -static int can_free_funccal(funccall_T *fc, int copyID) ; -static void free_funccal(funccall_T *fc, int free_val); -static void add_nr_var(dict_T *dp, dictitem_T *v, char *name, varnumber_T nr); static win_T *find_win_by_nr(typval_T *vp, tabpage_T *tp); static win_T *find_tabwin(typval_T *wvp, typval_T *tvp); static void getwinvar(typval_T *argvars, typval_T *rettv, int off); @@ -905,7 +690,7 @@ eval_init(void) init_var_dict(&vimvardict, &vimvars_var, VAR_SCOPE); vimvardict.dv_lock = VAR_FIXED; hash_init(&compat_hashtab); - hash_init(&func_hashtab); + func_init(); for (i = 0; i < VV_LEN; ++i) { @@ -1002,61 +787,8 @@ eval_clear(void) /* functions */ free_all_functions(); - hash_clear(&func_hashtab); -} -#endif - -/* - * Return the name of the executed function. - */ - char_u * -func_name(void *cookie) -{ - return ((funccall_T *)cookie)->func->uf_name; -} - -/* - * Return the address holding the next breakpoint line for a funccall cookie. - */ - linenr_T * -func_breakpoint(void *cookie) -{ - return &((funccall_T *)cookie)->breakpoint; -} - -/* - * Return the address holding the debug tick for a funccall cookie. - */ - int * -func_dbg_tick(void *cookie) -{ - return &((funccall_T *)cookie)->dbg_tick; -} - -/* - * Return the nesting level for a funccall cookie. - */ - int -func_level(void *cookie) -{ - return ((funccall_T *)cookie)->level; -} - -/* pointer to funccal for currently active function */ -funccall_T *current_funccal = NULL; - -/* pointer to list of previously used funccal, still around because some - * item in it is still being used. */ -funccall_T *previous_funccal = NULL; - -/* - * Return TRUE when a function was ended by a ":return" command. - */ - int -current_func_returned(void) -{ - return current_funccal->returned; -} +} +#endif /* @@ -1767,65 +1499,6 @@ call_func_retlist( } #endif -/* - * Save the current function call pointer, and set it to NULL. - * Used when executing autocommands and for ":source". - */ - void * -save_funccal(void) -{ - funccall_T *fc = current_funccal; - - current_funccal = NULL; - return (void *)fc; -} - - void -restore_funccal(void *vfc) -{ - funccall_T *fc = (funccall_T *)vfc; - - current_funccal = fc; -} - -#if defined(FEAT_PROFILE) || defined(PROTO) -/* - * Prepare profiling for entering a child or something else that is not - * counted for the script/function itself. - * Should always be called in pair with prof_child_exit(). - */ - void -prof_child_enter( - proftime_T *tm) /* place to store waittime */ -{ - funccall_T *fc = current_funccal; - - if (fc != NULL && fc->func->uf_profiling) - profile_start(&fc->prof_child); - script_prof_save(tm); -} - -/* - * Take care of time spent in a child. - * Should always be called after prof_child_enter(). - */ - void -prof_child_exit( - proftime_T *tm) /* where waittime was stored */ -{ - funccall_T *fc = current_funccal; - - if (fc != NULL && fc->func->uf_profiling) - { - profile_end(&fc->prof_child); - profile_sub_wait(tm, &fc->prof_child); /* don't count waiting time */ - profile_add(&fc->func->uf_tm_children, &fc->prof_child); - profile_add(&fc->func->uf_tml_children, &fc->prof_child); - } - script_prof_restore(tm); -} -#endif - #ifdef FEAT_FOLDING /* @@ -2130,7 +1803,7 @@ skip_var_one(char_u *arg) * List variables for hashtab "ht" with prefix "prefix". * If "empty" is TRUE also list NULL strings as empty strings. */ - static void + void list_hashtable_vars( hashtab_T *ht, char_u *prefix, @@ -2223,17 +1896,6 @@ list_script_vars(int *first) } /* - * List function variables, if there is a function. - */ - static void -list_func_vars(int *first) -{ - if (current_funccal != NULL) - list_hashtable_vars(¤t_funccal->l_vars.dv_hashtab, - (char_u *)"l:", FALSE, first); -} - -/* * List variables in "arg". */ static char_u * @@ -2567,7 +2229,7 @@ check_changedtick(char_u *arg) * When an evaluation error occurs "lp->ll_name" is NULL; * Returns NULL for a parsing error. Still need to free items in "lp"! */ - static char_u * + char_u * get_lval( char_u *name, typval_T *rettv, @@ -2912,7 +2574,7 @@ get_lval( /* * Clear lval "lp" that was filled by get_lval(). */ - static void + void clear_lval(lval_T *lp) { vim_free(lp->ll_exp_name); @@ -3405,139 +3067,6 @@ set_context_for_expression( #endif /* FEAT_CMDL_COMPL */ /* - * ":1,25call func(arg1, arg2)" function call. - */ - void -ex_call(exarg_T *eap) -{ - char_u *arg = eap->arg; - char_u *startarg; - char_u *name; - char_u *tofree; - int len; - typval_T rettv; - linenr_T lnum; - int doesrange; - int failed = FALSE; - funcdict_T fudi; - partial_T *partial = NULL; - - if (eap->skip) - { - /* trans_function_name() doesn't work well when skipping, use eval0() - * instead to skip to any following command, e.g. for: - * :if 0 | call dict.foo().bar() | endif */ - ++emsg_skip; - if (eval0(eap->arg, &rettv, &eap->nextcmd, FALSE) != FAIL) - clear_tv(&rettv); - --emsg_skip; - return; - } - - tofree = trans_function_name(&arg, eap->skip, TFN_INT, &fudi, &partial); - if (fudi.fd_newkey != NULL) - { - /* Still need to give an error message for missing key. */ - EMSG2(_(e_dictkey), fudi.fd_newkey); - vim_free(fudi.fd_newkey); - } - if (tofree == NULL) - return; - - /* Increase refcount on dictionary, it could get deleted when evaluating - * the arguments. */ - if (fudi.fd_dict != NULL) - ++fudi.fd_dict->dv_refcount; - - /* If it is the name of a variable of type VAR_FUNC or VAR_PARTIAL use its - * contents. For VAR_PARTIAL get its partial, unless we already have one - * from trans_function_name(). */ - len = (int)STRLEN(tofree); - name = deref_func_name(tofree, &len, - partial != NULL ? NULL : &partial, FALSE); - - /* Skip white space to allow ":call func ()". Not good, but required for - * backward compatibility. */ - startarg = skipwhite(arg); - rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */ - - if (*startarg != '(') - { - EMSG2(_("E107: Missing parentheses: %s"), eap->arg); - goto end; - } - - /* - * When skipping, evaluate the function once, to find the end of the - * arguments. - * When the function takes a range, this is discovered after the first - * call, and the loop is broken. - */ - if (eap->skip) - { - ++emsg_skip; - lnum = eap->line2; /* do it once, also with an invalid range */ - } - else - lnum = eap->line1; - for ( ; lnum <= eap->line2; ++lnum) - { - if (!eap->skip && eap->addr_count > 0) - { - curwin->w_cursor.lnum = lnum; - curwin->w_cursor.col = 0; -#ifdef FEAT_VIRTUALEDIT - curwin->w_cursor.coladd = 0; -#endif - } - arg = startarg; - if (get_func_tv(name, (int)STRLEN(name), &rettv, &arg, - eap->line1, eap->line2, &doesrange, - !eap->skip, partial, fudi.fd_dict) == FAIL) - { - failed = TRUE; - break; - } - - /* Handle a function returning a Funcref, Dictionary or List. */ - if (handle_subscript(&arg, &rettv, !eap->skip, TRUE) == FAIL) - { - failed = TRUE; - break; - } - - clear_tv(&rettv); - if (doesrange || eap->skip) - break; - - /* Stop when immediately aborting on error, or when an interrupt - * occurred or an exception was thrown but not caught. - * get_func_tv() returned OK, so that the check for trailing - * characters below is executed. */ - if (aborting()) - break; - } - if (eap->skip) - --emsg_skip; - - if (!failed) - { - /* Check for trailing illegal characters and a following command. */ - if (!ends_excmd(*arg)) - { - emsg_severe = TRUE; - EMSG(_(e_trailing)); - } - else - eap->nextcmd = check_nextcmd(arg); - } - -end: - dict_unref(fudi.fd_dict); - vim_free(tofree); -} - -/* * ":unlet[!] var1 ... " command. */ void @@ -3703,22 +3232,23 @@ do_unlet(char_u *name, int forceit) ht = find_var_ht(name, &varname); if (ht != NULL && *varname != NUL) { - if (ht == &globvarht) - d = &globvardict; - else if (current_funccal != NULL - && ht == ¤t_funccal->l_vars.dv_hashtab) - d = ¤t_funccal->l_vars; - else if (ht == &compat_hashtab) - d = &vimvardict; - else - { - di = find_var_in_ht(ht, *name, (char_u *)"", FALSE); - d = di == NULL ? NULL : di->di_tv.vval.v_dict; - } + d = get_current_funccal_dict(ht); if (d == NULL) { - EMSG2(_(e_intern2), "do_unlet()"); - return FAIL; + if (ht == &globvarht) + d = &globvardict; + else if (ht == &compat_hashtab) + d = &vimvardict; + else + { + di = find_var_in_ht(ht, *name, (char_u *)"", FALSE); + d = di == NULL ? NULL : di->di_tv.vval.v_dict; + } + if (d == NULL) + { + EMSG2(_(e_intern2), "do_unlet()"); + return FAIL; + } } hi = hash_find(ht, varname); if (!HASHITEM_EMPTY(hi)) @@ -4115,7 +3645,7 @@ typedef enum * Note: "rettv.v_lock" is not set. * Return OK or FAIL. */ - static int + int eval0( char_u *arg, typval_T *rettv, @@ -6088,9 +5618,6 @@ get_copyID(void) return current_copyID; } -/* Used by get_func_tv() */ -static garray_T funcargs = GA_EMPTY; - /* * Garbage collection for lists and dictionaries. * @@ -6124,9 +5651,7 @@ garbage_collect(int testing) buf_T *buf; win_T *wp; int i; - funccall_T *fc, **pfc; int did_free = FALSE; - int did_free_funccal = FALSE; #ifdef FEAT_WINDOWS tabpage_T *tp; #endif @@ -6151,13 +5676,7 @@ garbage_collect(int testing) /* Don't free variables in the previous_funccal list unless they are only * referenced through previous_funccal. This must be first, because if * the item is referenced elsewhere the funccal must not be freed. */ - for (fc = previous_funccal; fc != NULL; fc = fc->caller) - { - abort = abort || set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID + 1, - NULL); - abort = abort || set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID + 1, - NULL); - } + abort = abort || set_ref_in_previous_funccal(copyID); /* script-local variables */ for (i = 1; i <= ga_scripts.ga_len; ++i) @@ -6189,16 +5708,10 @@ garbage_collect(int testing) abort = abort || set_ref_in_ht(&globvarht, copyID, NULL); /* function-local variables */ - for (fc = current_funccal; fc != NULL; fc = fc->caller) - { - abort = abort || set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID, NULL); - abort = abort || set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID, NULL); - } + abort = abort || set_ref_in_call_stack(copyID); /* function call arguments, if v:testing is set. */ - for (i = 0; i < funcargs.ga_len; ++i) - abort = abort || set_ref_in_item(((typval_T **)funcargs.ga_data)[i], - copyID, NULL, NULL); + abort = abort || set_ref_in_func_args(copyID); /* v: vars */ abort = abort || set_ref_in_ht(&vimvarht, copyID, NULL); @@ -6236,24 +5749,9 @@ garbage_collect(int testing) /* * 3. Check if any funccal can be freed now. + * This may call us back recursively. */ - for (pfc = &previous_funccal; *pfc != NULL; ) - { - if (can_free_funccal(*pfc, copyID)) - { - fc = *pfc; - *pfc = fc->caller; - free_funccal(fc, TRUE); - did_free = TRUE; - did_free_funccal = TRUE; - } - else - pfc = &(*pfc)->caller; - } - if (did_free_funccal) - /* When a funccal was freed some more items might be garbage - * collected, so run again. */ - (void)garbage_collect(testing); + free_unref_funccal(copyID, testing); } else if (p_verbose > 0) { @@ -6567,202 +6065,6 @@ set_ref_in_item( return abort; } -/* Get function arguments. */ - static int -get_function_args( - char_u **argp, - char_u endchar, - garray_T *newargs, - int *varargs, - int skip) -{ - int mustend = FALSE; - char_u *arg = *argp; - char_u *p = arg; - int c; - int i; - - if (newargs != NULL) - ga_init2(newargs, (int)sizeof(char_u *), 3); - - if (varargs != NULL) - *varargs = FALSE; - - /* - * Isolate the arguments: "arg1, arg2, ...)" - */ - while (*p != endchar) - { - if (p[0] == '.' && p[1] == '.' && p[2] == '.') - { - if (varargs != NULL) - *varargs = TRUE; - p += 3; - mustend = TRUE; - } - else - { - arg = p; - while (ASCII_ISALNUM(*p) || *p == '_') - ++p; - if (arg == p || isdigit(*arg) - || (p - arg == 9 && STRNCMP(arg, "firstline", 9) == 0) - || (p - arg == 8 && STRNCMP(arg, "lastline", 8) == 0)) - { - if (!skip) - EMSG2(_("E125: Illegal argument: %s"), arg); - break; - } - if (newargs != NULL && ga_grow(newargs, 1) == FAIL) - return FAIL; - if (newargs != NULL) - { - c = *p; - *p = NUL; - arg = vim_strsave(arg); - if (arg == NULL) - goto err_ret; - - /* Check for duplicate argument name. */ - for (i = 0; i < newargs->ga_len; ++i) - if (STRCMP(((char_u **)(newargs->ga_data))[i], arg) == 0) - { - EMSG2(_("E853: Duplicate argument name: %s"), arg); - vim_free(arg); - goto err_ret; - } - ((char_u **)(newargs->ga_data))[newargs->ga_len] = arg; - newargs->ga_len++; - - *p = c; - } - if (*p == ',') - ++p; - else - mustend = TRUE; - } - p = skipwhite(p); - if (mustend && *p != endchar) - { - if (!skip) - EMSG2(_(e_invarg2), *argp); - break; - } - } - ++p; /* skip the ')' */ - - *argp = p; - return OK; - -err_ret: - if (newargs != NULL) - ga_clear_strings(newargs); - return FAIL; -} - -/* - * Parse a lambda expression and get a Funcref from "*arg". - * Return OK or FAIL. Returns NOTDONE for dict or {expr}. - */ - static int -get_lambda_tv(char_u **arg, typval_T *rettv, int evaluate) -{ - garray_T newargs; - garray_T newlines; - ufunc_T *fp = NULL; - int varargs; - int ret; - char_u name[20]; - char_u *start = skipwhite(*arg + 1); - char_u *s, *e; - static int lambda_no = 0; - - ga_init(&newargs); - ga_init(&newlines); - - /* First, check if this is a lambda expression. "->" must exist. */ - ret = get_function_args(&start, '-', NULL, NULL, TRUE); - if (ret == FAIL || *start != '>') - return NOTDONE; - - /* Parse the arguments again. */ - *arg = skipwhite(*arg + 1); - ret = get_function_args(arg, '-', &newargs, &varargs, FALSE); - if (ret == FAIL || **arg != '>') - goto errret; - - /* Get the start and the end of the expression. */ - *arg = skipwhite(*arg + 1); - s = *arg; - ret = skip_expr(arg); - if (ret == FAIL) - goto errret; - e = *arg; - *arg = skipwhite(*arg); - if (**arg != '}') - goto errret; - ++*arg; - - if (evaluate) - { - int len; - char_u *p; - - fp = (ufunc_T *)alloc((unsigned)(sizeof(ufunc_T) + 20)); - if (fp == NULL) - goto errret; - - sprintf((char*)name, "%d", ++lambda_no); - - ga_init2(&newlines, (int)sizeof(char_u *), 1); - if (ga_grow(&newlines, 1) == FAIL) - goto errret; - - /* Add "return " before the expression. - * TODO: Support multiple expressions. */ - len = 7 + e - s + 1; - p = (char_u *)alloc(len); - if (p == NULL) - goto errret; - ((char_u **)(newlines.ga_data))[newlines.ga_len++] = p; - STRCPY(p, "return "); - STRNCPY(p + 7, s, e - s); - p[7 + e - s] = NUL; - - fp->uf_refcount = 1; - STRCPY(fp->uf_name, name); - hash_add(&func_hashtab, UF2HIKEY(fp)); - fp->uf_args = newargs; - fp->uf_lines = newlines; - -#ifdef FEAT_PROFILE - fp->uf_tml_count = NULL; - fp->uf_tml_total = NULL; - fp->uf_tml_self = NULL; - fp->uf_profiling = FALSE; - if (prof_def_func()) - func_do_profile(fp); -#endif - fp->uf_varargs = TRUE; - fp->uf_flags = 0; - fp->uf_calls = 0; - fp->uf_script_ID = current_SID; - - rettv->vval.v_string = vim_strsave(name); - rettv->v_type = VAR_FUNC; - } - else - ga_clear_strings(&newargs); - - return OK; - -errret: - ga_clear_strings(&newargs); - ga_clear_strings(&newlines); - vim_free(fp); - return FAIL; -} - static char * get_var_special_name(int nr) { @@ -6973,7 +6275,7 @@ echo_string_core( * When "copyID" is not NULL replace recursive lists and dicts with "...". * May return NULL. */ - static char_u * + char_u * echo_string( typval_T *tv, char_u **tofree, @@ -7624,7 +6926,7 @@ sortFunctions(void) * Find internal function in table above. * Return index, or -1 if not found */ - static int + int find_internal_func( char_u *name) /* name of the function */ { @@ -7650,431 +6952,25 @@ find_internal_func( return -1; } -/* - * Check if "name" is a variable of type VAR_FUNC. If so, return the function - * name it contains, otherwise return "name". - * If "partialp" is not NULL, and "name" is of type VAR_PARTIAL also set - * "partialp". - */ - static char_u * -deref_func_name(char_u *name, int *lenp, partial_T **partialp, int no_autoload) -{ - dictitem_T *v; - int cc; - - if (partialp != NULL) - *partialp = NULL; - - cc = name[*lenp]; - name[*lenp] = NUL; - v = find_var(name, NULL, no_autoload); - name[*lenp] = cc; - if (v != NULL && v->di_tv.v_type == VAR_FUNC) - { - if (v->di_tv.vval.v_string == NULL) - { - *lenp = 0; - return (char_u *)""; /* just in case */ - } - *lenp = (int)STRLEN(v->di_tv.vval.v_string); - return v->di_tv.vval.v_string; - } - - if (v != NULL && v->di_tv.v_type == VAR_PARTIAL) - { - partial_T *pt = v->di_tv.vval.v_partial; - - if (pt == NULL) - { - *lenp = 0; - return (char_u *)""; /* just in case */ - } - if (partialp != NULL) - *partialp = pt; - *lenp = (int)STRLEN(pt->pt_name); - return pt->pt_name; - } - - return name; -} - -/* - * Allocate a variable for the result of a function. - * Return OK or FAIL. - */ - static int -get_func_tv( - char_u *name, /* name of the function */ - int len, /* length of "name" */ - typval_T *rettv, - char_u **arg, /* argument, pointing to the '(' */ - linenr_T firstline, /* first line of range */ - linenr_T lastline, /* last line of range */ - int *doesrange, /* return: function handled range */ - int evaluate, - partial_T *partial, /* for extra arguments */ - dict_T *selfdict) /* Dictionary for "self" */ -{ - char_u *argp; - int ret = OK; - typval_T argvars[MAX_FUNC_ARGS + 1]; /* vars for arguments */ - int argcount = 0; /* number of arguments found */ - - /* - * Get the arguments. - */ - argp = *arg; - while (argcount < MAX_FUNC_ARGS - (partial == NULL ? 0 : partial->pt_argc)) - { - argp = skipwhite(argp + 1); /* skip the '(' or ',' */ - if (*argp == ')' || *argp == ',' || *argp == NUL) - break; - if (eval1(&argp, &argvars[argcount], evaluate) == FAIL) - { - ret = FAIL; - break; - } - ++argcount; - if (*argp != ',') - break; - } - if (*argp == ')') - ++argp; - else - ret = FAIL; - - if (ret == OK) - { - int i = 0; - - if (get_vim_var_nr(VV_TESTING)) - { - /* Prepare for calling test_garbagecollect_now(), need to know - * what variables are used on the call stack. */ - if (funcargs.ga_itemsize == 0) - ga_init2(&funcargs, (int)sizeof(typval_T *), 50); - for (i = 0; i < argcount; ++i) - if (ga_grow(&funcargs, 1) == OK) - ((typval_T **)funcargs.ga_data)[funcargs.ga_len++] = - &argvars[i]; - } - - ret = call_func(name, len, rettv, argcount, argvars, - firstline, lastline, doesrange, evaluate, partial, selfdict); - - funcargs.ga_len -= i; - } - else if (!aborting()) - { - if (argcount == MAX_FUNC_ARGS) - emsg_funcname(N_("E740: Too many arguments for function %s"), name); - else - emsg_funcname(N_("E116: Invalid arguments for function %s"), name); - } - - while (--argcount >= 0) - clear_tv(&argvars[argcount]); - - *arg = skipwhite(argp); - return ret; -} - -#define ERROR_UNKNOWN 0 -#define ERROR_TOOMANY 1 -#define ERROR_TOOFEW 2 -#define ERROR_SCRIPT 3 -#define ERROR_DICT 4 -#define ERROR_NONE 5 -#define ERROR_OTHER 6 -#define FLEN_FIXED 40 - -/* - * In a script change name() and s:name() to K_SNR 123_name(). - * Change 123_name() to K_SNR 123_name(). - * Use "fname_buf[FLEN_FIXED + 1]" when it fits, otherwise allocate memory - * (slow). - */ - static char_u * -fname_trans_sid(char_u *name, char_u *fname_buf, char_u **tofree, int *error) -{ - int llen; - char_u *fname; - int i; - - llen = eval_fname_script(name); - if (llen > 0) - { - fname_buf[0] = K_SPECIAL; - fname_buf[1] = KS_EXTRA; - fname_buf[2] = (int)KE_SNR; - i = 3; - if (eval_fname_sid(name)) /* "" or "s:" */ - { - if (current_SID <= 0) - *error = ERROR_SCRIPT; - else - { - sprintf((char *)fname_buf + 3, "%ld_", (long)current_SID); - i = (int)STRLEN(fname_buf); - } - } - if (i + STRLEN(name + llen) < FLEN_FIXED) - { - STRCPY(fname_buf + i, name + llen); - fname = fname_buf; - } - else - { - fname = alloc((unsigned)(i + STRLEN(name + llen) + 1)); - if (fname == NULL) - *error = ERROR_OTHER; - else - { - *tofree = fname; - mch_memmove(fname, fname_buf, (size_t)i); - STRCPY(fname + i, name + llen); - } - } - } - else - fname = name; - return fname; -} - -/* - * Call a function with its resolved parameters - * Return FAIL when the function can't be called, OK otherwise. - * Also returns OK when an error was encountered while executing the function. - */ int -call_func( - char_u *funcname, /* name of the function */ - int len, /* length of "name" */ - typval_T *rettv, /* return value goes here */ - int argcount_in, /* number of "argvars" */ - typval_T *argvars_in, /* vars for arguments, must have "argcount" - PLUS ONE elements! */ - linenr_T firstline, /* first line of range */ - linenr_T lastline, /* last line of range */ - int *doesrange, /* return: function handled range */ - int evaluate, - partial_T *partial, /* optional, can be NULL */ - dict_T *selfdict_in) /* Dictionary for "self" */ -{ - int ret = FAIL; - int error = ERROR_NONE; - int i; - ufunc_T *fp; - char_u fname_buf[FLEN_FIXED + 1]; - char_u *tofree = NULL; - char_u *fname; - char_u *name; - int argcount = argcount_in; - typval_T *argvars = argvars_in; - dict_T *selfdict = selfdict_in; - typval_T argv[MAX_FUNC_ARGS + 1]; /* used when "partial" is not NULL */ - int argv_clear = 0; - - /* Make a copy of the name, if it comes from a funcref variable it could - * be changed or deleted in the called function. */ - name = vim_strnsave(funcname, len); - if (name == NULL) - return ret; - - fname = fname_trans_sid(name, fname_buf, &tofree, &error); - - *doesrange = FALSE; - - if (partial != NULL) - { - /* When the function has a partial with a dict and there is a dict - * argument, use the dict argument. That is backwards compatible. - * When the dict was bound explicitly use the one from the partial. */ - if (partial->pt_dict != NULL - && (selfdict_in == NULL || !partial->pt_auto)) - selfdict = partial->pt_dict; - if (error == ERROR_NONE && partial->pt_argc > 0) - { - for (argv_clear = 0; argv_clear < partial->pt_argc; ++argv_clear) - copy_tv(&partial->pt_argv[argv_clear], &argv[argv_clear]); - for (i = 0; i < argcount_in; ++i) - argv[i + argv_clear] = argvars_in[i]; - argvars = argv; - argcount = partial->pt_argc + argcount_in; - } - } - - - /* execute the function if no errors detected and executing */ - if (evaluate && error == ERROR_NONE) - { - char_u *rfname = fname; - - /* Ignore "g:" before a function name. */ - if (fname[0] == 'g' && fname[1] == ':') - rfname = fname + 2; - - rettv->v_type = VAR_NUMBER; /* default rettv is number zero */ - rettv->vval.v_number = 0; - error = ERROR_UNKNOWN; - - if (!builtin_function(rfname, -1)) - { - /* - * User defined function. - */ - fp = find_func(rfname); - -#ifdef FEAT_AUTOCMD - /* Trigger FuncUndefined event, may load the function. */ - if (fp == NULL - && apply_autocmds(EVENT_FUNCUNDEFINED, - rfname, rfname, TRUE, NULL) - && !aborting()) - { - /* executed an autocommand, search for the function again */ - fp = find_func(rfname); - } -#endif - /* Try loading a package. */ - if (fp == NULL && script_autoload(rfname, TRUE) && !aborting()) - { - /* loaded a package, search for the function again */ - fp = find_func(rfname); - } - - if (fp != NULL) - { - if (fp->uf_flags & FC_RANGE) - *doesrange = TRUE; - if (argcount < fp->uf_args.ga_len) - error = ERROR_TOOFEW; - else if (!fp->uf_varargs && argcount > fp->uf_args.ga_len) - error = ERROR_TOOMANY; - else if ((fp->uf_flags & FC_DICT) && selfdict == NULL) - error = ERROR_DICT; - else - { - int did_save_redo = FALSE; - - /* - * Call the user function. - * Save and restore search patterns, script variables and - * redo buffer. - */ - save_search_patterns(); -#ifdef FEAT_INS_EXPAND - if (!ins_compl_active()) -#endif - { - saveRedobuff(); - did_save_redo = TRUE; - } - ++fp->uf_calls; - call_user_func(fp, argcount, argvars, rettv, - firstline, lastline, - (fp->uf_flags & FC_DICT) ? selfdict : NULL); - if (--fp->uf_calls <= 0 && (isdigit(*fp->uf_name) - || STRNCMP(fp->uf_name, "", 8) == 0) - && fp->uf_refcount <= 0) - /* Function was unreferenced while being used, free it - * now. */ - func_free(fp); - if (did_save_redo) - restoreRedobuff(); - restore_search_patterns(); - error = ERROR_NONE; - } - } - } - else - { - /* - * Find the function name in the table, call its implementation. - */ - i = find_internal_func(fname); - if (i >= 0) - { - if (argcount < functions[i].f_min_argc) - error = ERROR_TOOFEW; - else if (argcount > functions[i].f_max_argc) - error = ERROR_TOOMANY; - else - { - argvars[argcount].v_type = VAR_UNKNOWN; - functions[i].f_func(argvars, rettv); - error = ERROR_NONE; - } - } - } - /* - * The function call (or "FuncUndefined" autocommand sequence) might - * have been aborted by an error, an interrupt, or an explicitly thrown - * exception that has not been caught so far. This situation can be - * tested for by calling aborting(). For an error in an internal - * function or for the "E132" error in call_user_func(), however, the - * throw point at which the "force_abort" flag (temporarily reset by - * emsg()) is normally updated has not been reached yet. We need to - * update that flag first to make aborting() reliable. - */ - update_force_abort(); - } - if (error == ERROR_NONE) - ret = OK; - - /* - * Report an error unless the argument evaluation or function call has been - * cancelled due to an aborting error, an interrupt, or an exception. - */ - if (!aborting()) - { - switch (error) - { - case ERROR_UNKNOWN: - emsg_funcname(N_("E117: Unknown function: %s"), name); - break; - case ERROR_TOOMANY: - emsg_funcname(e_toomanyarg, name); - break; - case ERROR_TOOFEW: - emsg_funcname(N_("E119: Not enough arguments for function: %s"), - name); - break; - case ERROR_SCRIPT: - emsg_funcname(N_("E120: Using not in a script context: %s"), - name); - break; - case ERROR_DICT: - emsg_funcname(N_("E725: Calling dict function without Dictionary: %s"), - name); - break; - } - } - - while (argv_clear > 0) - clear_tv(&argv[--argv_clear]); - vim_free(tofree); - vim_free(name); - - return ret; -} - -/* - * Give an error message with a function name. Handle things. - * "ermsg" is to be passed without translation, use N_() instead of _(). - */ - static void -emsg_funcname(char *ermsg, char_u *name) -{ - char_u *p; - - if (*name == K_SPECIAL) - p = concat_str((char_u *)"", name + 3); - else - p = name; - EMSG2(_(ermsg), p); - if (p != name) - vim_free(p); +call_internal_func( + char_u *name, + int argcount, + typval_T *argvars, + typval_T *rettv) +{ + int i; + + i = find_internal_func(name); + if (i < 0) + return ERROR_UNKNOWN; + if (argcount < functions[i].f_min_argc) + return ERROR_TOOFEW; + if (argcount > functions[i].f_max_argc) + return ERROR_TOOMANY; + argvars[argcount].v_type = VAR_UNKNOWN; + functions[i].f_func(argvars, rettv); + return ERROR_NONE; } /* @@ -9019,46 +7915,6 @@ f_byteidxcomp(typval_T *argvars, typval_ byteidx(argvars, rettv, TRUE); } - int -func_call( - char_u *name, - typval_T *args, - partial_T *partial, - dict_T *selfdict, - typval_T *rettv) -{ - listitem_T *item; - typval_T argv[MAX_FUNC_ARGS + 1]; - int argc = 0; - int dummy; - int r = 0; - - for (item = args->vval.v_list->lv_first; item != NULL; - item = item->li_next) - { - if (argc == MAX_FUNC_ARGS - (partial == NULL ? 0 : partial->pt_argc)) - { - EMSG(_("E699: Too many arguments")); - break; - } - /* Make a copy of each argument. This is needed to be able to set - * v_lock to VAR_FIXED in the copy without changing the original list. - */ - copy_tv(&item->li_tv, &argv[argc++]); - } - - if (item == NULL) - r = call_func(name, (int)STRLEN(name), rettv, argc, argv, - curwin->w_cursor.lnum, curwin->w_cursor.lnum, - &dummy, TRUE, partial, selfdict); - - /* Free the arguments. */ - while (argc > 0) - clear_tv(&argv[--argc]); - - return r; -} - /* * "call(func, arglist [, dict])" function */ @@ -20638,7 +19494,7 @@ get_env_len(char_u **arg) * "arg" is advanced to the first non-white character after the name. * Return 0 if something is wrong. */ - static int + int get_id_len(char_u **arg) { char_u *p; @@ -20746,7 +19602,7 @@ get_name_len( * Return a pointer to just after the name. Equal to "arg" if there is no * valid name. */ - static char_u * + char_u * find_name_end( char_u *arg, char_u **expr_start, @@ -20900,7 +19756,7 @@ make_expanded_name( * Return TRUE if character "c" can be used in a variable or function name. * Does not include '{' or '}' for magic braces. */ - static int + int eval_isnamec(int c) { return (ASCII_ISALNUM(c) || c == '_' || c == ':' || c == AUTOLOAD_CHAR); @@ -20910,7 +19766,7 @@ eval_isnamec(int c) * Return TRUE if character "c" can be used as the first character in a * variable or function name (excluding '{' and '}'). */ - static int + int eval_isnamec1(int c) { return (ASCII_ISALPHA(c) || c == '_'); @@ -21238,7 +20094,7 @@ get_var_tv( * Also handle function call with Funcref variable: func(expr) * Can all be combined: dict.func(expr)[idx]['func'](expr) */ - static int + int handle_subscript( char_u **arg, typval_T *rettv, @@ -21327,66 +20183,7 @@ handle_subscript( || (rettv->v_type == VAR_PARTIAL && (rettv->vval.v_partial->pt_auto || rettv->vval.v_partial->pt_dict == NULL)))) - { - char_u *fname = rettv->v_type == VAR_FUNC ? rettv->vval.v_string - : rettv->vval.v_partial->pt_name; - char_u *tofree = NULL; - ufunc_T *fp; - char_u fname_buf[FLEN_FIXED + 1]; - int error; - - /* Translate "s:func" to the stored function name. */ - fname = fname_trans_sid(fname, fname_buf, &tofree, &error); - fp = find_func(fname); - vim_free(tofree); - - if (fp != NULL && (fp->uf_flags & FC_DICT)) - { - partial_T *pt = (partial_T *)alloc_clear(sizeof(partial_T)); - - if (pt != NULL) - { - pt->pt_refcount = 1; - pt->pt_dict = selfdict; - pt->pt_auto = TRUE; - selfdict = NULL; - if (rettv->v_type == VAR_FUNC) - { - /* Just a function: Take over the function name and use - * selfdict. */ - pt->pt_name = rettv->vval.v_string; - } - else - { - partial_T *ret_pt = rettv->vval.v_partial; - int i; - - /* Partial: copy the function name, use selfdict and copy - * args. Can't take over name or args, the partial might - * be referenced elsewhere. */ - pt->pt_name = vim_strsave(ret_pt->pt_name); - func_ref(pt->pt_name); - if (ret_pt->pt_argc > 0) - { - pt->pt_argv = (typval_T *)alloc( - sizeof(typval_T) * ret_pt->pt_argc); - if (pt->pt_argv == NULL) - /* out of memory: drop the arguments */ - pt->pt_argc = 0; - else - { - pt->pt_argc = ret_pt->pt_argc; - for (i = 0; i < pt->pt_argc; i++) - copy_tv(&ret_pt->pt_argv[i], &pt->pt_argv[i]); - } - } - partial_unref(ret_pt); - } - rettv->v_type = VAR_PARTIAL; - rettv->vval.v_partial = pt; - } - } - } + selfdict = make_partial(selfdict, rettv); dict_unref(selfdict); return ret; @@ -21809,7 +20606,7 @@ get_tv_string_buf_chk(typval_T *varp, ch * When "htp" is not NULL we are writing to the variable, set "htp" to the * hashtab_T used. */ - static dictitem_T * + dictitem_T * find_var(char_u *name, hashtab_T **htp, int no_autoload) { char_u *varname; @@ -21849,10 +20646,8 @@ find_var_in_ht( #ifdef FEAT_WINDOWS case 't': return &curtab->tp_winvar; #endif - case 'l': return current_funccal == NULL - ? NULL : ¤t_funccal->l_vars_var; - case 'a': return current_funccal == NULL - ? NULL : ¤t_funccal->l_avars_var; + case 'l': return get_funccal_local_var(); + case 'a': return get_funccal_args_var(); } return NULL; } @@ -21887,6 +20682,7 @@ find_var_in_ht( find_var_ht(char_u *name, char_u **varname) { hashitem_T *hi; + hashtab_T *ht; if (name[0] == NUL) return NULL; @@ -21902,9 +20698,10 @@ find_var_ht(char_u *name, char_u **varna if (!HASHITEM_EMPTY(hi)) return &compat_hashtab; - if (current_funccal == NULL) + ht = get_funccal_local_ht(); + if (ht == NULL) return &globvarht; /* global variable */ - return &get_funccal()->l_vars.dv_hashtab; /* l: variable */ + return ht; /* local variable */ } *varname = name + 2; if (*name == 'g') /* global variable */ @@ -21924,10 +20721,10 @@ find_var_ht(char_u *name, char_u **varna #endif if (*name == 'v') /* v: variable */ return &vimvarht; - if (*name == 'a' && current_funccal != NULL) /* function argument */ - return &get_funccal()->l_avars.dv_hashtab; - if (*name == 'l' && current_funccal != NULL) /* local function variable */ - return &get_funccal()->l_vars.dv_hashtab; + if (*name == 'a') /* a: function argument */ + return get_funccal_args_ht(); + if (*name == 'l') /* l: local function variable */ + return get_funccal_local_ht(); if (*name == 's' /* script variable */ && current_SID > 0 && current_SID <= ga_scripts.ga_len) return &SCRIPT_VARS(current_SID); @@ -21935,32 +20732,6 @@ find_var_ht(char_u *name, char_u **varna } /* - * Get function call environment based on bactrace debug level - */ - static funccall_T * -get_funccal(void) -{ - int i; - funccall_T *funccal; - funccall_T *temp_funccal; - - funccal = current_funccal; - if (debug_backtrace_level > 0) - { - for (i = 0; i < debug_backtrace_level; i++) - { - temp_funccal = funccal->caller; - if (temp_funccal) - funccal = temp_funccal; - else - /* backtrace level overflow. reset to max */ - debug_backtrace_level = i; - } - } - return funccal; -} - -/* * Get the string value of a (global/local) variable. * Note: see get_tv_string() for how long the pointer remains valid. * Returns NULL when it doesn't exist. @@ -22056,7 +20827,7 @@ vars_clear(hashtab_T *ht) /* * Like vars_clear(), but only free the value if "free_val" is TRUE. */ - static void + void vars_clear_ext(hashtab_T *ht, int free_val) { int todo; @@ -22782,1196 +21553,33 @@ find_option_end(char_u **arg, int *opt_f } /* - * ":function" - */ - void -ex_function(exarg_T *eap) -{ - char_u *theline; - int j; - int c; - int saved_did_emsg; - int saved_wait_return = need_wait_return; - char_u *name = NULL; + * Return the autoload script name for a function or variable name. + * Returns NULL when out of memory. + */ + char_u * +autoload_name(char_u *name) +{ char_u *p; - char_u *arg; - char_u *line_arg = NULL; - garray_T newargs; - garray_T newlines; - int varargs = FALSE; - int flags = 0; - ufunc_T *fp; - int indent; - int nesting; - char_u *skip_until = NULL; - dictitem_T *v; - funcdict_T fudi; - static int func_nr = 0; /* number for nameless function */ - int paren; - hashtab_T *ht; - int todo; - hashitem_T *hi; - int sourcing_lnum_off; - - /* - * ":function" without argument: list functions. - */ - if (ends_excmd(*eap->arg)) - { - if (!eap->skip) - { - todo = (int)func_hashtab.ht_used; - for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) - { - if (!HASHITEM_EMPTY(hi)) - { - --todo; - fp = HI2UF(hi); - if (!isdigit(*fp->uf_name)) - list_func_head(fp, FALSE); - } - } - } - eap->nextcmd = check_nextcmd(eap->arg); - return; - } - - /* - * ":function /pat": list functions matching pattern. - */ - if (*eap->arg == '/') - { - p = skip_regexp(eap->arg + 1, '/', TRUE, NULL); - if (!eap->skip) - { - regmatch_T regmatch; - - c = *p; - *p = NUL; - regmatch.regprog = vim_regcomp(eap->arg + 1, RE_MAGIC); - *p = c; - if (regmatch.regprog != NULL) - { - regmatch.rm_ic = p_ic; - - todo = (int)func_hashtab.ht_used; - for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) - { - if (!HASHITEM_EMPTY(hi)) - { - --todo; - fp = HI2UF(hi); - if (!isdigit(*fp->uf_name) - && vim_regexec(®match, fp->uf_name, 0)) - list_func_head(fp, FALSE); - } - } - vim_regfree(regmatch.regprog); - } - } - if (*p == '/') - ++p; - eap->nextcmd = check_nextcmd(p); - return; - } - - /* - * Get the function name. There are these situations: - * func normal function name - * "name" == func, "fudi.fd_dict" == NULL - * dict.func new dictionary entry - * "name" == NULL, "fudi.fd_dict" set, - * "fudi.fd_di" == NULL, "fudi.fd_newkey" == func - * dict.func existing dict entry with a Funcref - * "name" == func, "fudi.fd_dict" set, - * "fudi.fd_di" set, "fudi.fd_newkey" == NULL - * dict.func existing dict entry that's not a Funcref - * "name" == NULL, "fudi.fd_dict" set, - * "fudi.fd_di" set, "fudi.fd_newkey" == NULL - * s:func script-local function name - * g:func global function name, same as "func" - */ - p = eap->arg; - name = trans_function_name(&p, eap->skip, 0, &fudi, NULL); - paren = (vim_strchr(p, '(') != NULL); - if (name == NULL && (fudi.fd_dict == NULL || !paren) && !eap->skip) - { - /* - * Return on an invalid expression in braces, unless the expression - * evaluation has been cancelled due to an aborting error, an - * interrupt, or an exception. - */ - if (!aborting()) - { - if (!eap->skip && fudi.fd_newkey != NULL) - EMSG2(_(e_dictkey), fudi.fd_newkey); - vim_free(fudi.fd_newkey); - return; - } - else - eap->skip = TRUE; - } - - /* An error in a function call during evaluation of an expression in magic - * braces should not cause the function not to be defined. */ - saved_did_emsg = did_emsg; - did_emsg = FALSE; - - /* - * ":function func" with only function name: list function. - */ - if (!paren) - { - if (!ends_excmd(*skipwhite(p))) - { - EMSG(_(e_trailing)); - goto ret_free; - } - eap->nextcmd = check_nextcmd(p); - if (eap->nextcmd != NULL) - *p = NUL; - if (!eap->skip && !got_int) - { - fp = find_func(name); - if (fp != NULL) - { - list_func_head(fp, TRUE); - for (j = 0; j < fp->uf_lines.ga_len && !got_int; ++j) - { - if (FUNCLINE(fp, j) == NULL) - continue; - msg_putchar('\n'); - msg_outnum((long)(j + 1)); - if (j < 9) - msg_putchar(' '); - if (j < 99) - msg_putchar(' '); - msg_prt_line(FUNCLINE(fp, j), FALSE); - out_flush(); /* show a line at a time */ - ui_breakcheck(); - } - if (!got_int) - { - msg_putchar('\n'); - msg_puts((char_u *)" endfunction"); - } - } - else - emsg_funcname(N_("E123: Undefined function: %s"), name); - } - goto ret_free; - } - - /* - * ":function name(arg1, arg2)" Define function. - */ - p = skipwhite(p); - if (*p != '(') - { - if (!eap->skip) - { - EMSG2(_("E124: Missing '(': %s"), eap->arg); - goto ret_free; - } - /* attempt to continue by skipping some text */ - if (vim_strchr(p, '(') != NULL) - p = vim_strchr(p, '('); - } - p = skipwhite(p + 1); - - ga_init2(&newlines, (int)sizeof(char_u *), 3); - - if (!eap->skip) - { - /* Check the name of the function. Unless it's a dictionary function - * (that we are overwriting). */ - if (name != NULL) - arg = name; - else - arg = fudi.fd_newkey; - if (arg != NULL && (fudi.fd_di == NULL - || (fudi.fd_di->di_tv.v_type != VAR_FUNC - && fudi.fd_di->di_tv.v_type != VAR_PARTIAL))) - { - if (*arg == K_SPECIAL) - j = 3; - else - j = 0; - while (arg[j] != NUL && (j == 0 ? eval_isnamec1(arg[j]) - : eval_isnamec(arg[j]))) - ++j; - if (arg[j] != NUL) - emsg_funcname((char *)e_invarg2, arg); - } - /* Disallow using the g: dict. */ - if (fudi.fd_dict != NULL && fudi.fd_dict->dv_scope == VAR_DEF_SCOPE) - EMSG(_("E862: Cannot use g: here")); - } - - if (get_function_args(&p, ')', &newargs, &varargs, eap->skip) == FAIL) - goto errret_2; - - /* find extra arguments "range", "dict" and "abort" */ - for (;;) - { - p = skipwhite(p); - if (STRNCMP(p, "range", 5) == 0) - { - flags |= FC_RANGE; - p += 5; - } - else if (STRNCMP(p, "dict", 4) == 0) - { - flags |= FC_DICT; - p += 4; - } - else if (STRNCMP(p, "abort", 5) == 0) - { - flags |= FC_ABORT; - p += 5; - } - else - break; - } - - /* When there is a line break use what follows for the function body. - * Makes 'exe "func Test()\n...\nendfunc"' work. */ - if (*p == '\n') - line_arg = p + 1; - else if (*p != NUL && *p != '"' && !eap->skip && !did_emsg) - EMSG(_(e_trailing)); - - /* - * Read the body of the function, until ":endfunction" is found. - */ - if (KeyTyped) - { - /* Check if the function already exists, don't let the user type the - * whole function before telling him it doesn't work! For a script we - * need to skip the body to be able to find what follows. */ - if (!eap->skip && !eap->forceit) - { - if (fudi.fd_dict != NULL && fudi.fd_newkey == NULL) - EMSG(_(e_funcdict)); - else if (name != NULL && find_func(name) != NULL) - emsg_funcname(e_funcexts, name); - } - - if (!eap->skip && did_emsg) - goto erret; - - msg_putchar('\n'); /* don't overwrite the function name */ - cmdline_row = msg_row; - } - - indent = 2; - nesting = 0; - for (;;) - { - if (KeyTyped) - { - msg_scroll = TRUE; - saved_wait_return = FALSE; - } - need_wait_return = FALSE; - sourcing_lnum_off = sourcing_lnum; - - if (line_arg != NULL) - { - /* Use eap->arg, split up in parts by line breaks. */ - theline = line_arg; - p = vim_strchr(theline, '\n'); - if (p == NULL) - line_arg += STRLEN(line_arg); - else - { - *p = NUL; - line_arg = p + 1; - } - } - else if (eap->getline == NULL) - theline = getcmdline(':', 0L, indent); - else - theline = eap->getline(':', eap->cookie, indent); - if (KeyTyped) - lines_left = Rows - 1; - if (theline == NULL) - { - EMSG(_("E126: Missing :endfunction")); - goto erret; - } - - /* Detect line continuation: sourcing_lnum increased more than one. */ - if (sourcing_lnum > sourcing_lnum_off + 1) - sourcing_lnum_off = sourcing_lnum - sourcing_lnum_off - 1; - else - sourcing_lnum_off = 0; - - if (skip_until != NULL) - { - /* between ":append" and "." and between ":python < 2 && STRNCMP(p, "end", 3) == 0) - indent -= 2; - else if (STRNCMP(p, "if", 2) == 0 - || STRNCMP(p, "wh", 2) == 0 - || STRNCMP(p, "for", 3) == 0 - || STRNCMP(p, "try", 3) == 0) - indent += 2; - - /* Check for defining a function inside this function. */ - if (checkforcmd(&p, "function", 2)) - { - if (*p == '!') - p = skipwhite(p + 1); - p += eval_fname_script(p); - vim_free(trans_function_name(&p, TRUE, 0, NULL, NULL)); - if (*skipwhite(p) == '(') - { - ++nesting; - indent += 2; - } - } - - /* Check for ":append" or ":insert". */ - p = skip_range(p, NULL); - if ((p[0] == 'a' && (!ASCII_ISALPHA(p[1]) || p[1] == 'p')) - || (p[0] == 'i' - && (!ASCII_ISALPHA(p[1]) || (p[1] == 'n' - && (!ASCII_ISALPHA(p[2]) || (p[2] == 's')))))) - skip_until = vim_strsave((char_u *)"."); - - /* Check for ":python < 0) - ((char_u **)(newlines.ga_data))[newlines.ga_len++] = NULL; - - /* Check for end of eap->arg. */ - if (line_arg != NULL && *line_arg == NUL) - line_arg = NULL; - } - - /* Don't define the function when skipping commands or when an error was - * detected. */ - if (eap->skip || did_emsg) - goto erret; - - /* - * If there are no errors, add the function - */ - if (fudi.fd_dict == NULL) - { - v = find_var(name, &ht, FALSE); - if (v != NULL && v->di_tv.v_type == VAR_FUNC) - { - emsg_funcname(N_("E707: Function name conflicts with variable: %s"), - name); - goto erret; - } - - fp = find_func(name); - if (fp != NULL) - { - if (!eap->forceit) - { - emsg_funcname(e_funcexts, name); - goto erret; - } - if (fp->uf_calls > 0) - { - emsg_funcname(N_("E127: Cannot redefine function %s: It is in use"), - name); - goto erret; - } - /* redefine existing function */ - ga_clear_strings(&(fp->uf_args)); - ga_clear_strings(&(fp->uf_lines)); - vim_free(name); - name = NULL; - } - } - else - { - char numbuf[20]; - - fp = NULL; - if (fudi.fd_newkey == NULL && !eap->forceit) - { - EMSG(_(e_funcdict)); - goto erret; - } - if (fudi.fd_di == NULL) - { - /* Can't add a function to a locked dictionary */ - if (tv_check_lock(fudi.fd_dict->dv_lock, eap->arg, FALSE)) - goto erret; - } - /* Can't change an existing function if it is locked */ - else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, eap->arg, FALSE)) - goto erret; - - /* Give the function a sequential number. Can only be used with a - * Funcref! */ - vim_free(name); - sprintf(numbuf, "%d", ++func_nr); - name = vim_strsave((char_u *)numbuf); - if (name == NULL) - goto erret; - } - - if (fp == NULL) - { - if (fudi.fd_dict == NULL && vim_strchr(name, AUTOLOAD_CHAR) != NULL) - { - int slen, plen; - char_u *scriptname; - - /* Check that the autoload name matches the script name. */ - j = FAIL; - if (sourcing_name != NULL) - { - scriptname = autoload_name(name); - if (scriptname != NULL) - { - p = vim_strchr(scriptname, '/'); - plen = (int)STRLEN(p); - slen = (int)STRLEN(sourcing_name); - if (slen > plen && fnamecmp(p, - sourcing_name + slen - plen) == 0) - j = OK; - vim_free(scriptname); - } - } - if (j == FAIL) - { - EMSG2(_("E746: Function name does not match script file name: %s"), name); - goto erret; - } - } - - fp = (ufunc_T *)alloc((unsigned)(sizeof(ufunc_T) + STRLEN(name))); - if (fp == NULL) - goto erret; - - if (fudi.fd_dict != NULL) - { - if (fudi.fd_di == NULL) - { - /* add new dict entry */ - fudi.fd_di = dictitem_alloc(fudi.fd_newkey); - if (fudi.fd_di == NULL) - { - vim_free(fp); - goto erret; - } - if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL) - { - vim_free(fudi.fd_di); - vim_free(fp); - goto erret; - } - } - else - /* overwrite existing dict entry */ - clear_tv(&fudi.fd_di->di_tv); - fudi.fd_di->di_tv.v_type = VAR_FUNC; - fudi.fd_di->di_tv.v_lock = 0; - fudi.fd_di->di_tv.vval.v_string = vim_strsave(name); - fp->uf_refcount = 1; - - /* behave like "dict" was used */ - flags |= FC_DICT; - } - - /* insert the new function in the function list */ - STRCPY(fp->uf_name, name); - if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL) - { - vim_free(fp); - goto erret; - } - } - fp->uf_args = newargs; - fp->uf_lines = newlines; -#ifdef FEAT_PROFILE - fp->uf_tml_count = NULL; - fp->uf_tml_total = NULL; - fp->uf_tml_self = NULL; - fp->uf_profiling = FALSE; - if (prof_def_func()) - func_do_profile(fp); -#endif - fp->uf_varargs = varargs; - fp->uf_flags = flags; - fp->uf_calls = 0; - fp->uf_script_ID = current_SID; - goto ret_free; - -erret: - ga_clear_strings(&newargs); -errret_2: - ga_clear_strings(&newlines); -ret_free: - vim_free(skip_until); - vim_free(fudi.fd_newkey); - vim_free(name); - did_emsg |= saved_did_emsg; - need_wait_return |= saved_wait_return; -} - -/* - * Get a function name, translating "" and "". - * Also handles a Funcref in a List or Dictionary. - * Returns the function name in allocated memory, or NULL for failure. - * flags: - * TFN_INT: internal function name OK - * TFN_QUIET: be quiet - * TFN_NO_AUTOLOAD: do not use script autoloading - * Advances "pp" to just after the function name (if no error). - */ - static char_u * -trans_function_name( - char_u **pp, - int skip, /* only find the end, don't evaluate */ - int flags, - funcdict_T *fdp, /* return: info about dictionary used */ - partial_T **partial) /* return: partial of a FuncRef */ -{ - char_u *name = NULL; - char_u *start; - char_u *end; - int lead; - char_u sid_buf[20]; - int len; - lval_T lv; - - if (fdp != NULL) - vim_memset(fdp, 0, sizeof(funcdict_T)); - start = *pp; - - /* Check for hard coded : already translated function ID (from a user - * command). */ - if ((*pp)[0] == K_SPECIAL && (*pp)[1] == KS_EXTRA - && (*pp)[2] == (int)KE_SNR) - { - *pp += 3; - len = get_id_len(pp) + 3; - return vim_strnsave(start, len); - } - - /* A name starting with "" or "" is local to a script. But - * don't skip over "s:", get_lval() needs it for "s:dict.func". */ - lead = eval_fname_script(start); - if (lead > 2) - start += lead; - - /* Note that TFN_ flags use the same values as GLV_ flags. */ - end = get_lval(start, NULL, &lv, FALSE, skip, flags, - lead > 2 ? 0 : FNE_CHECK_START); - if (end == start) - { - if (!skip) - EMSG(_("E129: Function name required")); - goto theend; - } - if (end == NULL || (lv.ll_tv != NULL && (lead > 2 || lv.ll_range))) - { - /* - * Report an invalid expression in braces, unless the expression - * evaluation has been cancelled due to an aborting error, an - * interrupt, or an exception. - */ - if (!aborting()) - { - if (end != NULL) - EMSG2(_(e_invarg2), start); - } - else - *pp = find_name_end(start, NULL, NULL, FNE_INCL_BR); - goto theend; - } - - if (lv.ll_tv != NULL) - { - if (fdp != NULL) - { - fdp->fd_dict = lv.ll_dict; - fdp->fd_newkey = lv.ll_newkey; - lv.ll_newkey = NULL; - fdp->fd_di = lv.ll_di; - } - if (lv.ll_tv->v_type == VAR_FUNC && lv.ll_tv->vval.v_string != NULL) - { - name = vim_strsave(lv.ll_tv->vval.v_string); - *pp = end; - } - else if (lv.ll_tv->v_type == VAR_PARTIAL - && lv.ll_tv->vval.v_partial != NULL) - { - name = vim_strsave(lv.ll_tv->vval.v_partial->pt_name); - *pp = end; - if (partial != NULL) - *partial = lv.ll_tv->vval.v_partial; - } - else - { - if (!skip && !(flags & TFN_QUIET) && (fdp == NULL - || lv.ll_dict == NULL || fdp->fd_newkey == NULL)) - EMSG(_(e_funcref)); - else - *pp = end; - name = NULL; - } - goto theend; - } - - if (lv.ll_name == NULL) - { - /* Error found, but continue after the function name. */ - *pp = end; - goto theend; - } - - /* Check if the name is a Funcref. If so, use the value. */ - if (lv.ll_exp_name != NULL) - { - len = (int)STRLEN(lv.ll_exp_name); - name = deref_func_name(lv.ll_exp_name, &len, partial, - flags & TFN_NO_AUTOLOAD); - if (name == lv.ll_exp_name) - name = NULL; - } - else - { - len = (int)(end - *pp); - name = deref_func_name(*pp, &len, partial, flags & TFN_NO_AUTOLOAD); - if (name == *pp) - name = NULL; - } - if (name != NULL) - { - name = vim_strsave(name); - *pp = end; - if (STRNCMP(name, "", 5) == 0) - { - /* Change "" to the byte sequence. */ - name[0] = K_SPECIAL; - name[1] = KS_EXTRA; - name[2] = (int)KE_SNR; - mch_memmove(name + 3, name + 5, STRLEN(name + 5) + 1); - } - goto theend; - } - - if (lv.ll_exp_name != NULL) - { - len = (int)STRLEN(lv.ll_exp_name); - if (lead <= 2 && lv.ll_name == lv.ll_exp_name - && STRNCMP(lv.ll_name, "s:", 2) == 0) - { - /* When there was "s:" already or the name expanded to get a - * leading "s:" then remove it. */ - lv.ll_name += 2; - len -= 2; - lead = 2; - } - } - else - { - /* skip over "s:" and "g:" */ - if (lead == 2 || (lv.ll_name[0] == 'g' && lv.ll_name[1] == ':')) - lv.ll_name += 2; - len = (int)(end - lv.ll_name); - } - - /* - * Copy the function name to allocated memory. - * Accept name() inside a script, translate into 123_name(). - * Accept 123_name() outside a script. - */ - if (skip) - lead = 0; /* do nothing */ - else if (lead > 0) - { - lead = 3; - if ((lv.ll_exp_name != NULL && eval_fname_sid(lv.ll_exp_name)) - || eval_fname_sid(*pp)) - { - /* It's "s:" or "" */ - if (current_SID <= 0) - { - EMSG(_(e_usingsid)); - goto theend; - } - sprintf((char *)sid_buf, "%ld_", (long)current_SID); - lead += (int)STRLEN(sid_buf); - } - } - else if (!(flags & TFN_INT) && builtin_function(lv.ll_name, len)) - { - EMSG2(_("E128: Function name must start with a capital or \"s:\": %s"), - start); - goto theend; - } - if (!skip && !(flags & TFN_QUIET)) - { - char_u *cp = vim_strchr(lv.ll_name, ':'); - - if (cp != NULL && cp < end) - { - EMSG2(_("E884: Function name cannot contain a colon: %s"), start); - goto theend; - } - } - - name = alloc((unsigned)(len + lead + 1)); - if (name != NULL) - { - if (lead > 0) - { - name[0] = K_SPECIAL; - name[1] = KS_EXTRA; - name[2] = (int)KE_SNR; - if (lead > 3) /* If it's "" */ - STRCPY(name + 3, sid_buf); - } - mch_memmove(name + lead, lv.ll_name, (size_t)len); - name[lead + len] = NUL; - } - *pp = end; - -theend: - clear_lval(&lv); - return name; -} - -/* - * Return 5 if "p" starts with "" or "" (ignoring case). - * Return 2 if "p" starts with "s:". - * Return 0 otherwise. - */ - static int -eval_fname_script(char_u *p) -{ - /* Use MB_STRICMP() because in Turkish comparing the "I" may not work with - * the standard library function. */ - if (p[0] == '<' && (MB_STRNICMP(p + 1, "SID>", 4) == 0 - || MB_STRNICMP(p + 1, "SNR>", 4) == 0)) - return 5; - if (p[0] == 's' && p[1] == ':') - return 2; - return 0; -} - -/* - * Return TRUE if "p" starts with "" or "s:". - * Only works if eval_fname_script() returned non-zero for "p"! - */ - static int -eval_fname_sid(char_u *p) -{ - return (*p == 's' || TOUPPER_ASC(p[2]) == 'I'); -} - -/* - * List the head of the function: "name(arg1, arg2)". - */ - static void -list_func_head(ufunc_T *fp, int indent) -{ - int j; - - msg_start(); - if (indent) - MSG_PUTS(" "); - MSG_PUTS("function "); - if (fp->uf_name[0] == K_SPECIAL) - { - MSG_PUTS_ATTR("", hl_attr(HLF_8)); - msg_puts(fp->uf_name + 3); - } - else - msg_puts(fp->uf_name); - msg_putchar('('); - for (j = 0; j < fp->uf_args.ga_len; ++j) - { - if (j) - MSG_PUTS(", "); - msg_puts(FUNCARG(fp, j)); - } - if (fp->uf_varargs) - { - if (j) - MSG_PUTS(", "); - MSG_PUTS("..."); - } - msg_putchar(')'); - if (fp->uf_flags & FC_ABORT) - MSG_PUTS(" abort"); - if (fp->uf_flags & FC_RANGE) - MSG_PUTS(" range"); - if (fp->uf_flags & FC_DICT) - MSG_PUTS(" dict"); - msg_clr_eos(); - if (p_verbose > 0) - last_set_msg(fp->uf_script_ID); -} - -/* - * Find a function by name, return pointer to it in ufuncs. - * Return NULL for unknown function. - */ - static ufunc_T * -find_func(char_u *name) -{ - hashitem_T *hi; - - hi = hash_find(&func_hashtab, name); - if (!HASHITEM_EMPTY(hi)) - return HI2UF(hi); - return NULL; -} - -#if defined(EXITFREE) || defined(PROTO) - void -free_all_functions(void) -{ - hashitem_T *hi; - - /* Need to start all over every time, because func_free() may change the - * hash table. */ - while (func_hashtab.ht_used > 0) - for (hi = func_hashtab.ht_array; ; ++hi) - if (!HASHITEM_EMPTY(hi)) - { - func_free(HI2UF(hi)); - break; - } -} -#endif - - int -translated_function_exists(char_u *name) -{ - if (builtin_function(name, -1)) - return find_internal_func(name) >= 0; - return find_func(name) != NULL; -} - -/* - * Return TRUE if a function "name" exists. - */ - static int -function_exists(char_u *name) -{ - char_u *nm = name; - char_u *p; - int n = FALSE; - - p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET|TFN_NO_AUTOLOAD, - NULL, NULL); - nm = skipwhite(nm); - - /* Only accept "funcname", "funcname ", "funcname (..." and - * "funcname(...", not "funcname!...". */ - if (p != NULL && (*nm == NUL || *nm == '(')) - n = translated_function_exists(p); - vim_free(p); - return n; -} - - char_u * -get_expanded_name(char_u *name, int check) -{ - char_u *nm = name; - char_u *p; - - p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET, NULL, NULL); - - if (p != NULL && *nm == NUL) - if (!check || translated_function_exists(p)) - return p; - - vim_free(p); - return NULL; -} - -/* - * Return TRUE if "name" looks like a builtin function name: starts with a - * lower case letter and doesn't contain AUTOLOAD_CHAR. - * "len" is the length of "name", or -1 for NUL terminated. - */ - static int -builtin_function(char_u *name, int len) -{ - char_u *p; - - if (!ASCII_ISLOWER(name[0])) + char_u *scriptname; + + /* Get the script file name: replace '#' with '/', append ".vim". */ + scriptname = alloc((unsigned)(STRLEN(name) + 14)); + if (scriptname == NULL) return FALSE; - p = vim_strchr(name, AUTOLOAD_CHAR); - return p == NULL || (len > 0 && p > name + len); -} - -#if defined(FEAT_PROFILE) || defined(PROTO) -/* - * Start profiling function "fp". - */ - static void -func_do_profile(ufunc_T *fp) -{ - int len = fp->uf_lines.ga_len; - - if (len == 0) - len = 1; /* avoid getting error for allocating zero bytes */ - fp->uf_tm_count = 0; - profile_zero(&fp->uf_tm_self); - profile_zero(&fp->uf_tm_total); - if (fp->uf_tml_count == NULL) - fp->uf_tml_count = (int *)alloc_clear((unsigned) (sizeof(int) * len)); - if (fp->uf_tml_total == NULL) - fp->uf_tml_total = (proftime_T *)alloc_clear((unsigned) - (sizeof(proftime_T) * len)); - if (fp->uf_tml_self == NULL) - fp->uf_tml_self = (proftime_T *)alloc_clear((unsigned) - (sizeof(proftime_T) * len)); - fp->uf_tml_idx = -1; - if (fp->uf_tml_count == NULL || fp->uf_tml_total == NULL - || fp->uf_tml_self == NULL) - return; /* out of memory */ - - fp->uf_profiling = TRUE; -} - -/* - * Dump the profiling results for all functions in file "fd". - */ - void -func_dump_profile(FILE *fd) -{ - hashitem_T *hi; - int todo; - ufunc_T *fp; - int i; - ufunc_T **sorttab; - int st_len = 0; - - todo = (int)func_hashtab.ht_used; - if (todo == 0) - return; /* nothing to dump */ - - sorttab = (ufunc_T **)alloc((unsigned)(sizeof(ufunc_T *) * todo)); - - for (hi = func_hashtab.ht_array; todo > 0; ++hi) - { - if (!HASHITEM_EMPTY(hi)) - { - --todo; - fp = HI2UF(hi); - if (fp->uf_profiling) - { - if (sorttab != NULL) - sorttab[st_len++] = fp; - - if (fp->uf_name[0] == K_SPECIAL) - fprintf(fd, "FUNCTION %s()\n", fp->uf_name + 3); - else - fprintf(fd, "FUNCTION %s()\n", fp->uf_name); - if (fp->uf_tm_count == 1) - fprintf(fd, "Called 1 time\n"); - else - fprintf(fd, "Called %d times\n", fp->uf_tm_count); - fprintf(fd, "Total time: %s\n", profile_msg(&fp->uf_tm_total)); - fprintf(fd, " Self time: %s\n", profile_msg(&fp->uf_tm_self)); - fprintf(fd, "\n"); - fprintf(fd, "count total (s) self (s)\n"); - - for (i = 0; i < fp->uf_lines.ga_len; ++i) - { - if (FUNCLINE(fp, i) == NULL) - continue; - prof_func_line(fd, fp->uf_tml_count[i], - &fp->uf_tml_total[i], &fp->uf_tml_self[i], TRUE); - fprintf(fd, "%s\n", FUNCLINE(fp, i)); - } - fprintf(fd, "\n"); - } - } - } - - if (sorttab != NULL && st_len > 0) - { - qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *), - prof_total_cmp); - prof_sort_list(fd, sorttab, st_len, "TOTAL", FALSE); - qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *), - prof_self_cmp); - prof_sort_list(fd, sorttab, st_len, "SELF", TRUE); - } - - vim_free(sorttab); -} - - static void -prof_sort_list( - FILE *fd, - ufunc_T **sorttab, - int st_len, - char *title, - int prefer_self) /* when equal print only self time */ -{ - int i; - ufunc_T *fp; - - fprintf(fd, "FUNCTIONS SORTED ON %s TIME\n", title); - fprintf(fd, "count total (s) self (s) function\n"); - for (i = 0; i < 20 && i < st_len; ++i) - { - fp = sorttab[i]; - prof_func_line(fd, fp->uf_tm_count, &fp->uf_tm_total, &fp->uf_tm_self, - prefer_self); - if (fp->uf_name[0] == K_SPECIAL) - fprintf(fd, " %s()\n", fp->uf_name + 3); - else - fprintf(fd, " %s()\n", fp->uf_name); - } - fprintf(fd, "\n"); -} - -/* - * Print the count and times for one function or function line. - */ - static void -prof_func_line( - FILE *fd, - int count, - proftime_T *total, - proftime_T *self, - int prefer_self) /* when equal print only self time */ -{ - if (count > 0) - { - fprintf(fd, "%5d ", count); - if (prefer_self && profile_equal(total, self)) - fprintf(fd, " "); - else - fprintf(fd, "%s ", profile_msg(total)); - if (!prefer_self && profile_equal(total, self)) - fprintf(fd, " "); - else - fprintf(fd, "%s ", profile_msg(self)); - } - else - fprintf(fd, " "); -} - -/* - * Compare function for total time sorting. - */ - static int -#ifdef __BORLANDC__ -_RTLENTRYF -#endif -prof_total_cmp(const void *s1, const void *s2) -{ - ufunc_T *p1, *p2; - - p1 = *(ufunc_T **)s1; - p2 = *(ufunc_T **)s2; - return profile_cmp(&p1->uf_tm_total, &p2->uf_tm_total); -} - -/* - * Compare function for self time sorting. - */ - static int -#ifdef __BORLANDC__ -_RTLENTRYF -#endif -prof_self_cmp(const void *s1, const void *s2) -{ - ufunc_T *p1, *p2; - - p1 = *(ufunc_T **)s1; - p2 = *(ufunc_T **)s2; - return profile_cmp(&p1->uf_tm_self, &p2->uf_tm_self); -} - -#endif + STRCPY(scriptname, "autoload/"); + STRCAT(scriptname, name); + *vim_strrchr(scriptname, AUTOLOAD_CHAR) = NUL; + STRCAT(scriptname, ".vim"); + while ((p = vim_strchr(scriptname, AUTOLOAD_CHAR)) != NULL) + *p = '/'; + return scriptname; +} /* * If "name" has a package name try autoloading the script for it. * Return TRUE if a package was loaded. */ - static int + int script_autoload( char_u *name, int reload) /* load script again when already loaded */ @@ -24013,1034 +21621,6 @@ script_autoload( return ret; } -/* - * Return the autoload script name for a function or variable name. - * Returns NULL when out of memory. - */ - static char_u * -autoload_name(char_u *name) -{ - char_u *p; - char_u *scriptname; - - /* Get the script file name: replace '#' with '/', append ".vim". */ - scriptname = alloc((unsigned)(STRLEN(name) + 14)); - if (scriptname == NULL) - return FALSE; - STRCPY(scriptname, "autoload/"); - STRCAT(scriptname, name); - *vim_strrchr(scriptname, AUTOLOAD_CHAR) = NUL; - STRCAT(scriptname, ".vim"); - while ((p = vim_strchr(scriptname, AUTOLOAD_CHAR)) != NULL) - *p = '/'; - return scriptname; -} - -#if defined(FEAT_CMDL_COMPL) || defined(PROTO) - -/* - * Function given to ExpandGeneric() to obtain the list of user defined - * function names. - */ - char_u * -get_user_func_name(expand_T *xp, int idx) -{ - static long_u done; - static hashitem_T *hi; - ufunc_T *fp; - - if (idx == 0) - { - done = 0; - hi = func_hashtab.ht_array; - } - if (done < func_hashtab.ht_used) - { - if (done++ > 0) - ++hi; - while (HASHITEM_EMPTY(hi)) - ++hi; - fp = HI2UF(hi); - - if (fp->uf_flags & FC_DICT) - return (char_u *)""; /* don't show dict functions */ - - if (STRLEN(fp->uf_name) + 4 >= IOSIZE) - return fp->uf_name; /* prevents overflow */ - - cat_func_name(IObuff, fp); - if (xp->xp_context != EXPAND_USER_FUNC) - { - STRCAT(IObuff, "("); - if (!fp->uf_varargs && fp->uf_args.ga_len == 0) - STRCAT(IObuff, ")"); - } - return IObuff; - } - return NULL; -} - -#endif /* FEAT_CMDL_COMPL */ - -/* - * Copy the function name of "fp" to buffer "buf". - * "buf" must be able to hold the function name plus three bytes. - * Takes care of script-local function names. - */ - static void -cat_func_name(char_u *buf, ufunc_T *fp) -{ - if (fp->uf_name[0] == K_SPECIAL) - { - STRCPY(buf, ""); - STRCAT(buf, fp->uf_name + 3); - } - else - STRCPY(buf, fp->uf_name); -} - -/* - * ":delfunction {name}" - */ - void -ex_delfunction(exarg_T *eap) -{ - ufunc_T *fp = NULL; - char_u *p; - char_u *name; - funcdict_T fudi; - - p = eap->arg; - name = trans_function_name(&p, eap->skip, 0, &fudi, NULL); - vim_free(fudi.fd_newkey); - if (name == NULL) - { - if (fudi.fd_dict != NULL && !eap->skip) - EMSG(_(e_funcref)); - return; - } - if (!ends_excmd(*skipwhite(p))) - { - vim_free(name); - EMSG(_(e_trailing)); - return; - } - eap->nextcmd = check_nextcmd(p); - if (eap->nextcmd != NULL) - *p = NUL; - - if (!eap->skip) - fp = find_func(name); - vim_free(name); - - if (!eap->skip) - { - if (fp == NULL) - { - EMSG2(_(e_nofunc), eap->arg); - return; - } - if (fp->uf_calls > 0) - { - EMSG2(_("E131: Cannot delete function %s: It is in use"), eap->arg); - return; - } - - if (fudi.fd_dict != NULL) - { - /* Delete the dict item that refers to the function, it will - * invoke func_unref() and possibly delete the function. */ - dictitem_remove(fudi.fd_dict, fudi.fd_di); - } - else - func_free(fp); - } -} - -/* - * Free a function and remove it from the list of functions. - */ - static void -func_free(ufunc_T *fp) -{ - hashitem_T *hi; - - /* clear this function */ - ga_clear_strings(&(fp->uf_args)); - ga_clear_strings(&(fp->uf_lines)); -#ifdef FEAT_PROFILE - vim_free(fp->uf_tml_count); - vim_free(fp->uf_tml_total); - vim_free(fp->uf_tml_self); -#endif - - /* remove the function from the function hashtable */ - hi = hash_find(&func_hashtab, UF2HIKEY(fp)); - if (HASHITEM_EMPTY(hi)) - EMSG2(_(e_intern2), "func_free()"); - else - hash_remove(&func_hashtab, hi); - - vim_free(fp); -} - -/* - * Unreference a Function: decrement the reference count and free it when it - * becomes zero. Only for numbered functions. - */ - void -func_unref(char_u *name) -{ - ufunc_T *fp; - - if (name == NULL) - return; - else if (isdigit(*name)) - { - fp = find_func(name); - if (fp == NULL) - { -#ifdef EXITFREE - if (!entered_free_all_mem) -#endif - EMSG2(_(e_intern2), "func_unref()"); - } - else if (--fp->uf_refcount <= 0) - { - /* Only delete it when it's not being used. Otherwise it's done - * when "uf_calls" becomes zero. */ - if (fp->uf_calls == 0) - func_free(fp); - } - } - else if (STRNCMP(name, "", 8) == 0) - { - /* fail silently, when lambda function isn't found. */ - fp = find_func(name); - if (fp != NULL && --fp->uf_refcount <= 0) - { - /* Only delete it when it's not being used. Otherwise it's done - * when "uf_calls" becomes zero. */ - if (fp->uf_calls == 0) - func_free(fp); - } - } -} - -/* - * Count a reference to a Function. - */ - void -func_ref(char_u *name) -{ - ufunc_T *fp; - - if (name == NULL) - return; - else if (isdigit(*name)) - { - fp = find_func(name); - if (fp == NULL) - EMSG2(_(e_intern2), "func_ref()"); - else - ++fp->uf_refcount; - } - else if (STRNCMP(name, "", 8) == 0) - { - /* fail silently, when lambda function isn't found. */ - fp = find_func(name); - if (fp != NULL) - ++fp->uf_refcount; - } -} - -/* - * Call a user function. - */ - static void -call_user_func( - ufunc_T *fp, /* pointer to function */ - int argcount, /* nr of args */ - typval_T *argvars, /* arguments */ - typval_T *rettv, /* return value */ - linenr_T firstline, /* first line of range */ - linenr_T lastline, /* last line of range */ - dict_T *selfdict) /* Dictionary for "self" */ -{ - char_u *save_sourcing_name; - linenr_T save_sourcing_lnum; - scid_T save_current_SID; - funccall_T *fc; - int save_did_emsg; - static int depth = 0; - dictitem_T *v; - int fixvar_idx = 0; /* index in fixvar[] */ - int i; - int ai; - int islambda = FALSE; - char_u numbuf[NUMBUFLEN]; - char_u *name; - size_t len; -#ifdef FEAT_PROFILE - proftime_T wait_start; - proftime_T call_start; -#endif - - /* If depth of calling is getting too high, don't execute the function */ - if (depth >= p_mfd) - { - EMSG(_("E132: Function call depth is higher than 'maxfuncdepth'")); - rettv->v_type = VAR_NUMBER; - rettv->vval.v_number = -1; - return; - } - ++depth; - - line_breakcheck(); /* check for CTRL-C hit */ - - fc = (funccall_T *)alloc(sizeof(funccall_T)); - fc->caller = current_funccal; - current_funccal = fc; - fc->func = fp; - fc->rettv = rettv; - rettv->vval.v_number = 0; - fc->linenr = 0; - fc->returned = FALSE; - fc->level = ex_nesting_level; - /* Check if this function has a breakpoint. */ - fc->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, (linenr_T)0); - fc->dbg_tick = debug_tick; - - if (STRNCMP(fp->uf_name, "", 8) == 0) - islambda = TRUE; - - /* - * Note about using fc->fixvar[]: This is an array of FIXVAR_CNT variables - * with names up to VAR_SHORT_LEN long. This avoids having to alloc/free - * each argument variable and saves a lot of time. - */ - /* - * Init l: variables. - */ - init_var_dict(&fc->l_vars, &fc->l_vars_var, VAR_DEF_SCOPE); - if (selfdict != NULL) - { - /* Set l:self to "selfdict". Use "name" to avoid a warning from - * some compiler that checks the destination size. */ - v = &fc->fixvar[fixvar_idx++].var; - name = v->di_key; - STRCPY(name, "self"); - v->di_flags = DI_FLAGS_RO + DI_FLAGS_FIX; - hash_add(&fc->l_vars.dv_hashtab, DI2HIKEY(v)); - v->di_tv.v_type = VAR_DICT; - v->di_tv.v_lock = 0; - v->di_tv.vval.v_dict = selfdict; - ++selfdict->dv_refcount; - } - - /* - * Init a: variables. - * Set a:0 to "argcount". - * Set a:000 to a list with room for the "..." arguments. - */ - init_var_dict(&fc->l_avars, &fc->l_avars_var, VAR_SCOPE); - add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "0", - (varnumber_T)(argcount - fp->uf_args.ga_len)); - /* Use "name" to avoid a warning from some compiler that checks the - * destination size. */ - v = &fc->fixvar[fixvar_idx++].var; - name = v->di_key; - STRCPY(name, "000"); - v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; - hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v)); - v->di_tv.v_type = VAR_LIST; - v->di_tv.v_lock = VAR_FIXED; - v->di_tv.vval.v_list = &fc->l_varlist; - vim_memset(&fc->l_varlist, 0, sizeof(list_T)); - fc->l_varlist.lv_refcount = DO_NOT_FREE_CNT; - fc->l_varlist.lv_lock = VAR_FIXED; - - /* - * Set a:firstline to "firstline" and a:lastline to "lastline". - * Set a:name to named arguments. - * Set a:N to the "..." arguments. - */ - add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "firstline", - (varnumber_T)firstline); - add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "lastline", - (varnumber_T)lastline); - for (i = 0; i < argcount; ++i) - { - int addlocal = FALSE; - dictitem_T *v2; - - ai = i - fp->uf_args.ga_len; - if (ai < 0) - { - /* named argument a:name */ - name = FUNCARG(fp, i); - if (islambda) - addlocal = TRUE; - } - else - { - /* "..." argument a:1, a:2, etc. */ - sprintf((char *)numbuf, "%d", ai + 1); - name = numbuf; - } - if (fixvar_idx < FIXVAR_CNT && STRLEN(name) <= VAR_SHORT_LEN) - { - v = &fc->fixvar[fixvar_idx++].var; - v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; - - if (addlocal) - v2 = v; - } - else - { - v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) - + STRLEN(name))); - if (v == NULL) - break; - v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX | DI_FLAGS_ALLOC; - - if (addlocal) - { - v2 = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) - + STRLEN(name))); - if (v2 == NULL) - { - vim_free(v); - break; - } - v2->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX | DI_FLAGS_ALLOC; - } - } - STRCPY(v->di_key, name); - hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v)); - - /* Note: the values are copied directly to avoid alloc/free. - * "argvars" must have VAR_FIXED for v_lock. */ - v->di_tv = argvars[i]; - v->di_tv.v_lock = VAR_FIXED; - - /* Named arguments can be accessed without the "a:" prefix in lambda - * expressions. Add to the l: dict. */ - if (addlocal) - { - STRCPY(v2->di_key, name); - copy_tv(&v->di_tv, &v2->di_tv); - v2->di_tv.v_lock = VAR_FIXED; - hash_add(&fc->l_vars.dv_hashtab, DI2HIKEY(v2)); - } - - if (ai >= 0 && ai < MAX_FUNC_ARGS) - { - list_append(&fc->l_varlist, &fc->l_listitems[ai]); - fc->l_listitems[ai].li_tv = argvars[i]; - fc->l_listitems[ai].li_tv.v_lock = VAR_FIXED; - } - } - - /* Don't redraw while executing the function. */ - ++RedrawingDisabled; - save_sourcing_name = sourcing_name; - save_sourcing_lnum = sourcing_lnum; - sourcing_lnum = 1; - /* need space for function name + ("function " + 3) or "[number]" */ - len = (save_sourcing_name == NULL ? 0 : STRLEN(save_sourcing_name)) - + STRLEN(fp->uf_name) + 20; - sourcing_name = alloc((unsigned)len); - if (sourcing_name != NULL) - { - if (save_sourcing_name != NULL - && STRNCMP(save_sourcing_name, "function ", 9) == 0) - sprintf((char *)sourcing_name, "%s[%d]..", - save_sourcing_name, (int)save_sourcing_lnum); - else - STRCPY(sourcing_name, "function "); - cat_func_name(sourcing_name + STRLEN(sourcing_name), fp); - - if (p_verbose >= 12) - { - ++no_wait_return; - verbose_enter_scroll(); - - smsg((char_u *)_("calling %s"), sourcing_name); - if (p_verbose >= 14) - { - char_u buf[MSG_BUF_LEN]; - char_u numbuf2[NUMBUFLEN]; - char_u *tofree; - char_u *s; - - msg_puts((char_u *)"("); - for (i = 0; i < argcount; ++i) - { - if (i > 0) - msg_puts((char_u *)", "); - if (argvars[i].v_type == VAR_NUMBER) - msg_outnum((long)argvars[i].vval.v_number); - else - { - /* Do not want errors such as E724 here. */ - ++emsg_off; - s = tv2string(&argvars[i], &tofree, numbuf2, 0); - --emsg_off; - if (s != NULL) - { - if (vim_strsize(s) > MSG_BUF_CLEN) - { - trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN); - s = buf; - } - msg_puts(s); - vim_free(tofree); - } - } - } - msg_puts((char_u *)")"); - } - msg_puts((char_u *)"\n"); /* don't overwrite this either */ - - verbose_leave_scroll(); - --no_wait_return; - } - } -#ifdef FEAT_PROFILE - if (do_profiling == PROF_YES) - { - if (!fp->uf_profiling && has_profiling(FALSE, fp->uf_name, NULL)) - func_do_profile(fp); - if (fp->uf_profiling - || (fc->caller != NULL && fc->caller->func->uf_profiling)) - { - ++fp->uf_tm_count; - profile_start(&call_start); - profile_zero(&fp->uf_tm_children); - } - script_prof_save(&wait_start); - } -#endif - - save_current_SID = current_SID; - current_SID = fp->uf_script_ID; - save_did_emsg = did_emsg; - did_emsg = FALSE; - - /* call do_cmdline() to execute the lines */ - do_cmdline(NULL, get_func_line, (void *)fc, - DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT); - - --RedrawingDisabled; - - /* when the function was aborted because of an error, return -1 */ - if ((did_emsg && (fp->uf_flags & FC_ABORT)) || rettv->v_type == VAR_UNKNOWN) - { - clear_tv(rettv); - rettv->v_type = VAR_NUMBER; - rettv->vval.v_number = -1; - } - -#ifdef FEAT_PROFILE - if (do_profiling == PROF_YES && (fp->uf_profiling - || (fc->caller != NULL && fc->caller->func->uf_profiling))) - { - profile_end(&call_start); - profile_sub_wait(&wait_start, &call_start); - profile_add(&fp->uf_tm_total, &call_start); - profile_self(&fp->uf_tm_self, &call_start, &fp->uf_tm_children); - if (fc->caller != NULL && fc->caller->func->uf_profiling) - { - profile_add(&fc->caller->func->uf_tm_children, &call_start); - profile_add(&fc->caller->func->uf_tml_children, &call_start); - } - } -#endif - - /* when being verbose, mention the return value */ - if (p_verbose >= 12) - { - ++no_wait_return; - verbose_enter_scroll(); - - if (aborting()) - smsg((char_u *)_("%s aborted"), sourcing_name); - else if (fc->rettv->v_type == VAR_NUMBER) - smsg((char_u *)_("%s returning #%ld"), sourcing_name, - (long)fc->rettv->vval.v_number); - else - { - char_u buf[MSG_BUF_LEN]; - char_u numbuf2[NUMBUFLEN]; - char_u *tofree; - char_u *s; - - /* The value may be very long. Skip the middle part, so that we - * have some idea how it starts and ends. smsg() would always - * truncate it at the end. Don't want errors such as E724 here. */ - ++emsg_off; - s = tv2string(fc->rettv, &tofree, numbuf2, 0); - --emsg_off; - if (s != NULL) - { - if (vim_strsize(s) > MSG_BUF_CLEN) - { - trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN); - s = buf; - } - smsg((char_u *)_("%s returning %s"), sourcing_name, s); - vim_free(tofree); - } - } - msg_puts((char_u *)"\n"); /* don't overwrite this either */ - - verbose_leave_scroll(); - --no_wait_return; - } - - vim_free(sourcing_name); - sourcing_name = save_sourcing_name; - sourcing_lnum = save_sourcing_lnum; - current_SID = save_current_SID; -#ifdef FEAT_PROFILE - if (do_profiling == PROF_YES) - script_prof_restore(&wait_start); -#endif - - if (p_verbose >= 12 && sourcing_name != NULL) - { - ++no_wait_return; - verbose_enter_scroll(); - - smsg((char_u *)_("continuing in %s"), sourcing_name); - msg_puts((char_u *)"\n"); /* don't overwrite this either */ - - verbose_leave_scroll(); - --no_wait_return; - } - - did_emsg |= save_did_emsg; - current_funccal = fc->caller; - --depth; - - /* If the a:000 list and the l: and a: dicts are not referenced we can - * free the funccall_T and what's in it. */ - if (fc->l_varlist.lv_refcount == DO_NOT_FREE_CNT - && fc->l_vars.dv_refcount == DO_NOT_FREE_CNT - && fc->l_avars.dv_refcount == DO_NOT_FREE_CNT) - { - free_funccal(fc, FALSE); - } - else - { - hashitem_T *hi; - listitem_T *li; - int todo; - - /* "fc" is still in use. This can happen when returning "a:000" or - * assigning "l:" to a global variable. - * Link "fc" in the list for garbage collection later. */ - fc->caller = previous_funccal; - previous_funccal = fc; - - /* Make a copy of the a: variables, since we didn't do that above. */ - todo = (int)fc->l_avars.dv_hashtab.ht_used; - for (hi = fc->l_avars.dv_hashtab.ht_array; todo > 0; ++hi) - { - if (!HASHITEM_EMPTY(hi)) - { - --todo; - v = HI2DI(hi); - copy_tv(&v->di_tv, &v->di_tv); - } - } - - /* Make a copy of the a:000 items, since we didn't do that above. */ - for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next) - copy_tv(&li->li_tv, &li->li_tv); - } -} - -/* - * Return TRUE if items in "fc" do not have "copyID". That means they are not - * referenced from anywhere that is in use. - */ - static int -can_free_funccal(funccall_T *fc, int copyID) -{ - return (fc->l_varlist.lv_copyID != copyID - && fc->l_vars.dv_copyID != copyID - && fc->l_avars.dv_copyID != copyID); -} - -/* - * Free "fc" and what it contains. - */ - static void -free_funccal( - funccall_T *fc, - int free_val) /* a: vars were allocated */ -{ - listitem_T *li; - - /* The a: variables typevals may not have been allocated, only free the - * allocated variables. */ - vars_clear_ext(&fc->l_avars.dv_hashtab, free_val); - - /* free all l: variables */ - vars_clear(&fc->l_vars.dv_hashtab); - - /* Free the a:000 variables if they were allocated. */ - if (free_val) - for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next) - clear_tv(&li->li_tv); - - vim_free(fc); -} - -/* - * Add a number variable "name" to dict "dp" with value "nr". - */ - static void -add_nr_var( - dict_T *dp, - dictitem_T *v, - char *name, - varnumber_T nr) -{ - STRCPY(v->di_key, name); - v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; - hash_add(&dp->dv_hashtab, DI2HIKEY(v)); - v->di_tv.v_type = VAR_NUMBER; - v->di_tv.v_lock = VAR_FIXED; - v->di_tv.vval.v_number = nr; -} - -/* - * ":return [expr]" - */ - void -ex_return(exarg_T *eap) -{ - char_u *arg = eap->arg; - typval_T rettv; - int returning = FALSE; - - if (current_funccal == NULL) - { - EMSG(_("E133: :return not inside a function")); - return; - } - - if (eap->skip) - ++emsg_skip; - - eap->nextcmd = NULL; - if ((*arg != NUL && *arg != '|' && *arg != '\n') - && eval0(arg, &rettv, &eap->nextcmd, !eap->skip) != FAIL) - { - if (!eap->skip) - returning = do_return(eap, FALSE, TRUE, &rettv); - else - clear_tv(&rettv); - } - /* It's safer to return also on error. */ - else if (!eap->skip) - { - /* - * Return unless the expression evaluation has been cancelled due to an - * aborting error, an interrupt, or an exception. - */ - if (!aborting()) - returning = do_return(eap, FALSE, TRUE, NULL); - } - - /* When skipping or the return gets pending, advance to the next command - * in this line (!returning). Otherwise, ignore the rest of the line. - * Following lines will be ignored by get_func_line(). */ - if (returning) - eap->nextcmd = NULL; - else if (eap->nextcmd == NULL) /* no argument */ - eap->nextcmd = check_nextcmd(arg); - - if (eap->skip) - --emsg_skip; -} - -/* - * Return from a function. Possibly makes the return pending. Also called - * for a pending return at the ":endtry" or after returning from an extra - * do_cmdline(). "reanimate" is used in the latter case. "is_cmd" is set - * when called due to a ":return" command. "rettv" may point to a typval_T - * with the return rettv. Returns TRUE when the return can be carried out, - * FALSE when the return gets pending. - */ - int -do_return( - exarg_T *eap, - int reanimate, - int is_cmd, - void *rettv) -{ - int idx; - struct condstack *cstack = eap->cstack; - - if (reanimate) - /* Undo the return. */ - current_funccal->returned = FALSE; - - /* - * Cleanup (and inactivate) conditionals, but stop when a try conditional - * not in its finally clause (which then is to be executed next) is found. - * In this case, make the ":return" pending for execution at the ":endtry". - * Otherwise, return normally. - */ - idx = cleanup_conditionals(eap->cstack, 0, TRUE); - if (idx >= 0) - { - cstack->cs_pending[idx] = CSTP_RETURN; - - if (!is_cmd && !reanimate) - /* A pending return again gets pending. "rettv" points to an - * allocated variable with the rettv of the original ":return"'s - * argument if present or is NULL else. */ - cstack->cs_rettv[idx] = rettv; - else - { - /* When undoing a return in order to make it pending, get the stored - * return rettv. */ - if (reanimate) - rettv = current_funccal->rettv; - - if (rettv != NULL) - { - /* Store the value of the pending return. */ - if ((cstack->cs_rettv[idx] = alloc_tv()) != NULL) - *(typval_T *)cstack->cs_rettv[idx] = *(typval_T *)rettv; - else - EMSG(_(e_outofmem)); - } - else - cstack->cs_rettv[idx] = NULL; - - if (reanimate) - { - /* The pending return value could be overwritten by a ":return" - * without argument in a finally clause; reset the default - * return value. */ - current_funccal->rettv->v_type = VAR_NUMBER; - current_funccal->rettv->vval.v_number = 0; - } - } - report_make_pending(CSTP_RETURN, rettv); - } - else - { - current_funccal->returned = TRUE; - - /* If the return is carried out now, store the return value. For - * a return immediately after reanimation, the value is already - * there. */ - if (!reanimate && rettv != NULL) - { - clear_tv(current_funccal->rettv); - *current_funccal->rettv = *(typval_T *)rettv; - if (!is_cmd) - vim_free(rettv); - } - } - - return idx < 0; -} - -/* - * Free the variable with a pending return value. - */ - void -discard_pending_return(void *rettv) -{ - free_tv((typval_T *)rettv); -} - -/* - * Generate a return command for producing the value of "rettv". The result - * is an allocated string. Used by report_pending() for verbose messages. - */ - char_u * -get_return_cmd(void *rettv) -{ - char_u *s = NULL; - char_u *tofree = NULL; - char_u numbuf[NUMBUFLEN]; - - if (rettv != NULL) - s = echo_string((typval_T *)rettv, &tofree, numbuf, 0); - if (s == NULL) - s = (char_u *)""; - - STRCPY(IObuff, ":return "); - STRNCPY(IObuff + 8, s, IOSIZE - 8); - if (STRLEN(s) + 8 >= IOSIZE) - STRCPY(IObuff + IOSIZE - 4, "..."); - vim_free(tofree); - return vim_strsave(IObuff); -} - -/* - * Get next function line. - * Called by do_cmdline() to get the next line. - * Returns allocated string, or NULL for end of function. - */ - char_u * -get_func_line( - int c UNUSED, - void *cookie, - int indent UNUSED) -{ - funccall_T *fcp = (funccall_T *)cookie; - ufunc_T *fp = fcp->func; - char_u *retval; - garray_T *gap; /* growarray with function lines */ - - /* If breakpoints have been added/deleted need to check for it. */ - if (fcp->dbg_tick != debug_tick) - { - fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, - sourcing_lnum); - fcp->dbg_tick = debug_tick; - } -#ifdef FEAT_PROFILE - if (do_profiling == PROF_YES) - func_line_end(cookie); -#endif - - gap = &fp->uf_lines; - if (((fp->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try()) - || fcp->returned) - retval = NULL; - else - { - /* Skip NULL lines (continuation lines). */ - while (fcp->linenr < gap->ga_len - && ((char_u **)(gap->ga_data))[fcp->linenr] == NULL) - ++fcp->linenr; - if (fcp->linenr >= gap->ga_len) - retval = NULL; - else - { - retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->linenr++]); - sourcing_lnum = fcp->linenr; -#ifdef FEAT_PROFILE - if (do_profiling == PROF_YES) - func_line_start(cookie); -#endif - } - } - - /* Did we encounter a breakpoint? */ - if (fcp->breakpoint != 0 && fcp->breakpoint <= sourcing_lnum) - { - dbg_breakpoint(fp->uf_name, sourcing_lnum); - /* Find next breakpoint. */ - fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, - sourcing_lnum); - fcp->dbg_tick = debug_tick; - } - - return retval; -} - -#if defined(FEAT_PROFILE) || defined(PROTO) -/* - * Called when starting to read a function line. - * "sourcing_lnum" must be correct! - * When skipping lines it may not actually be executed, but we won't find out - * until later and we need to store the time now. - */ - void -func_line_start(void *cookie) -{ - funccall_T *fcp = (funccall_T *)cookie; - ufunc_T *fp = fcp->func; - - if (fp->uf_profiling && sourcing_lnum >= 1 - && sourcing_lnum <= fp->uf_lines.ga_len) - { - fp->uf_tml_idx = sourcing_lnum - 1; - /* Skip continuation lines. */ - while (fp->uf_tml_idx > 0 && FUNCLINE(fp, fp->uf_tml_idx) == NULL) - --fp->uf_tml_idx; - fp->uf_tml_execed = FALSE; - profile_start(&fp->uf_tml_start); - profile_zero(&fp->uf_tml_children); - profile_get_wait(&fp->uf_tml_wait); - } -} - -/* - * Called when actually executing a function line. - */ - void -func_line_exec(void *cookie) -{ - funccall_T *fcp = (funccall_T *)cookie; - ufunc_T *fp = fcp->func; - - if (fp->uf_profiling && fp->uf_tml_idx >= 0) - fp->uf_tml_execed = TRUE; -} - -/* - * Called when done with a function line. - */ - void -func_line_end(void *cookie) -{ - funccall_T *fcp = (funccall_T *)cookie; - ufunc_T *fp = fcp->func; - - if (fp->uf_profiling && fp->uf_tml_idx >= 0) - { - if (fp->uf_tml_execed) - { - ++fp->uf_tml_count[fp->uf_tml_idx]; - profile_end(&fp->uf_tml_start); - profile_sub_wait(&fp->uf_tml_wait, &fp->uf_tml_start); - profile_add(&fp->uf_tml_total[fp->uf_tml_idx], &fp->uf_tml_start); - profile_self(&fp->uf_tml_self[fp->uf_tml_idx], &fp->uf_tml_start, - &fp->uf_tml_children); - } - fp->uf_tml_idx = -1; - } -} -#endif - -/* - * Return TRUE if the currently active function should be ended, because a - * return was encountered or an error occurred. Used inside a ":while". - */ - int -func_has_ended(void *cookie) -{ - funccall_T *fcp = (funccall_T *)cookie; - - /* Ignore the "abort" flag if the abortion behavior has been changed due to - * an error inside a try conditional. */ - return (((fcp->func->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try()) - || fcp->returned); -} - -/* - * return TRUE if cookie indicates a function which "abort"s on errors. - */ - int -func_has_abort( - void *cookie) -{ - return ((funccall_T *)cookie)->func->uf_flags & FC_ABORT; -} - #if defined(FEAT_VIMINFO) || defined(FEAT_SESSION) typedef enum { @@ -25078,7 +21658,7 @@ read_viminfo_varlist(vir_T *virp, int wr char_u *tab; int type = VAR_NUMBER; typval_T tv; - funccall_T *save_funccal; + void *save_funccal; if (!writing && (find_viminfo_parameter('!') != NULL)) { @@ -25127,10 +21707,9 @@ read_viminfo_varlist(vir_T *virp, int wr } /* when in a function use global variables */ - save_funccal = current_funccal; - current_funccal = NULL; + save_funccal = clear_current_funccal(); set_var(virp->vir_line + 1, &tv, FALSE); - current_funccal = save_funccal; + restore_current_funccal(save_funccal); if (tv.v_type == VAR_STRING) vim_free(tv.vval.v_string); diff --git a/src/globals.h b/src/globals.h --- a/src/globals.h +++ b/src/globals.h @@ -1536,6 +1536,8 @@ EXTERN char_u e_readonlysbx[] INIT(= N_( EXTERN char_u e_emptykey[] INIT(= N_("E713: Cannot use empty key for Dictionary")); EXTERN char_u e_dictreq[] INIT(= N_("E715: Dictionary required")); EXTERN char_u e_listidx[] INIT(= N_("E684: list index out of range: %ld")); +EXTERN char_u e_toomanyarg[] INIT(= N_("E118: Too many arguments for function: %s")); +EXTERN char_u e_dictkey[] INIT(= N_("E716: Key not present in Dictionary: %s")); #endif #ifdef FEAT_QUICKFIX EXTERN char_u e_readerrf[] INIT(= N_("E47: Error while reading errorfile")); diff --git a/src/proto.h b/src/proto.h --- a/src/proto.h +++ b/src/proto.h @@ -165,6 +165,7 @@ void qsort(void *base, size_t elm_count, # endif # include "ui.pro" # include "undo.pro" +# include "userfunc.pro" # include "version.pro" # include "window.pro" diff --git a/src/proto/eval.pro b/src/proto/eval.pro --- a/src/proto/eval.pro +++ b/src/proto/eval.pro @@ -1,11 +1,6 @@ /* eval.c */ void eval_init(void); void eval_clear(void); -char_u *func_name(void *cookie); -linenr_T *func_breakpoint(void *cookie); -int *func_dbg_tick(void *cookie); -int func_level(void *cookie); -int current_func_returned(void); void set_internal_string_var(char_u *name, char_u *value); int var_redir_start(char_u *name, int append); void var_redir_str(char_u *value, int value_len); @@ -27,22 +22,21 @@ int call_vim_function(char_u *func, int varnumber_T call_func_retnr(char_u *func, int argc, char_u **argv, int safe); void *call_func_retstr(char_u *func, int argc, char_u **argv, int safe); void *call_func_retlist(char_u *func, int argc, char_u **argv, int safe); -void *save_funccal(void); -void restore_funccal(void *vfc); -void prof_child_enter(proftime_T *tm); -void prof_child_exit(proftime_T *tm); int eval_foldexpr(char_u *arg, int *cp); void ex_let(exarg_T *eap); +void list_hashtable_vars(hashtab_T *ht, char_u *prefix, int empty, int *first); +char_u *get_lval(char_u *name, typval_T *rettv, lval_T *lp, int unlet, int skip, int flags, int fne_flags); +void clear_lval(lval_T *lp); void *eval_for_line(char_u *arg, int *errp, char_u **nextcmdp, int skip); int next_for_item(void *fi_void, char_u *arg); void free_for_info(void *fi_void); void set_context_for_expression(expand_T *xp, char_u *arg, cmdidx_T cmdidx); -void ex_call(exarg_T *eap); void ex_unlet(exarg_T *eap); void ex_lockvar(exarg_T *eap); int do_unlet(char_u *name, int forceit); void del_menutrans_vars(void); char_u *get_user_var_name(expand_T *xp, int idx); +int eval0(char_u *arg, typval_T *rettv, char_u **nextcmd, int evaluate); int eval1(char_u **arg, typval_T *rettv, int evaluate); void partial_unref(partial_T *pt); int tv_equal(typval_T *tv1, typval_T *tv2, int ic, int recursive); @@ -52,20 +46,25 @@ int set_ref_in_ht(hashtab_T *ht, int cop int set_ref_in_list(list_T *l, int copyID, ht_stack_T **ht_stack); int set_ref_in_item(typval_T *tv, int copyID, ht_stack_T **ht_stack, list_stack_T **list_stack); char_u *echo_string_core(typval_T *tv, char_u **tofree, char_u *numbuf, int copyID, int echo_style, int restore_copyID, int dict_val); +char_u *echo_string(typval_T *tv, char_u **tofree, char_u *numbuf, int copyID); char_u *tv2string(typval_T *tv, char_u **tofree, char_u *numbuf, int copyID); char_u *string_quote(char_u *str, int function); int string2float(char_u *text, float_T *value); char_u *get_function_name(expand_T *xp, int idx); char_u *get_expr_name(expand_T *xp, int idx); -int call_func(char_u *funcname, int len, typval_T *rettv, int argcount_in, typval_T *argvars_in, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, partial_T *partial, dict_T *selfdict_in); +int find_internal_func(char_u *name); +int call_internal_func(char_u *name, int argcount, typval_T *argvars, typval_T *rettv); buf_T *buflist_find_by_name(char_u *name, int curtab_only); -int func_call(char_u *name, typval_T *args, partial_T *partial, dict_T *selfdict, typval_T *rettv); void execute_redir_str(char_u *value, int value_len); void mzscheme_call_vim(char_u *name, typval_T *args, typval_T *rettv); float_T vim_round(float_T f); long do_searchpair(char_u *spat, char_u *mpat, char_u *epat, int dir, char_u *skip, int flags, pos_T *match_pos, linenr_T lnum_stop, long time_limit); char_u *get_callback(typval_T *arg, partial_T **pp); void free_callback(char_u *callback, partial_T *partial); +int get_id_len(char_u **arg); +char_u *find_name_end(char_u *arg, char_u **expr_start, char_u **expr_end, int flags); +int eval_isnamec(int c); +int eval_isnamec1(int c); void set_vim_var_nr(int idx, varnumber_T val); varnumber_T get_vim_var_nr(int idx); char_u *get_vim_var_str(int idx); @@ -79,6 +78,7 @@ void set_reg_var(int c); char_u *v_exception(char_u *oldval); char_u *v_throwpoint(char_u *oldval); char_u *set_cmdarg(exarg_T *eap, char_u *oldarg); +int handle_subscript(char_u **arg, typval_T *rettv, int evaluate, int verbose); typval_T *alloc_tv(void); void free_tv(typval_T *varp); void clear_tv(typval_T *varp); @@ -88,11 +88,13 @@ char_u *get_tv_string(typval_T *varp); char_u *get_tv_string_buf(typval_T *varp, char_u *buf); char_u *get_tv_string_chk(typval_T *varp); char_u *get_tv_string_buf_chk(typval_T *varp, char_u *buf); +dictitem_T *find_var(char_u *name, hashtab_T **htp, int no_autoload); char_u *get_var_value(char_u *name); void new_script_vars(scid_T id); void init_var_dict(dict_T *dict, dictitem_T *dict_var, int scope); void unref_var_dict(dict_T *dict); void vars_clear(hashtab_T *ht); +void vars_clear_ext(hashtab_T *ht, int free_val); int var_check_ro(int flags, char_u *name, int use_gettext); int var_check_func_name(char_u *name, int new_var); int valid_varname(char_u *varname); @@ -102,25 +104,8 @@ int item_copy(typval_T *from, typval_T * void ex_echo(exarg_T *eap); void ex_echohl(exarg_T *eap); void ex_execute(exarg_T *eap); -void ex_function(exarg_T *eap); -void free_all_functions(void); -int translated_function_exists(char_u *name); -char_u *get_expanded_name(char_u *name, int check); -void func_dump_profile(FILE *fd); -char_u *get_user_func_name(expand_T *xp, int idx); -void ex_delfunction(exarg_T *eap); -void func_unref(char_u *name); -void func_ref(char_u *name); -void ex_return(exarg_T *eap); -int do_return(exarg_T *eap, int reanimate, int is_cmd, void *rettv); -void discard_pending_return(void *rettv); -char_u *get_return_cmd(void *rettv); -char_u *get_func_line(int c, void *cookie, int indent); -void func_line_start(void *cookie); -void func_line_exec(void *cookie); -void func_line_end(void *cookie); -int func_has_ended(void *cookie); -int func_has_abort(void *cookie); +char_u *autoload_name(char_u *name); +int script_autoload(char_u *name, int reload); int read_viminfo_varlist(vir_T *virp, int writing); void write_viminfo_varlist(FILE *fp); int store_session_globals(FILE *fd); diff --git a/src/proto/userfunc.pro b/src/proto/userfunc.pro new file mode 100644 --- /dev/null +++ b/src/proto/userfunc.pro @@ -0,0 +1,52 @@ +/* userfunc.c */ +void func_init(void); +int get_lambda_tv(char_u **arg, typval_T *rettv, int evaluate); +char_u *deref_func_name(char_u *name, int *lenp, partial_T **partialp, int no_autoload); +int get_func_tv(char_u *name, int len, typval_T *rettv, char_u **arg, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, partial_T *partial, dict_T *selfdict); +void free_all_functions(void); +int func_call(char_u *name, typval_T *args, partial_T *partial, dict_T *selfdict, typval_T *rettv); +int call_func(char_u *funcname, int len, typval_T *rettv, int argcount_in, typval_T *argvars_in, linenr_T firstline, linenr_T lastline, int *doesrange, int evaluate, partial_T *partial, dict_T *selfdict_in); +void ex_function(exarg_T *eap); +int eval_fname_script(char_u *p); +int translated_function_exists(char_u *name); +int function_exists(char_u *name); +char_u *get_expanded_name(char_u *name, int check); +void func_dump_profile(FILE *fd); +void prof_child_enter(proftime_T *tm); +void prof_child_exit(proftime_T *tm); +char_u *get_user_func_name(expand_T *xp, int idx); +void ex_delfunction(exarg_T *eap); +void func_unref(char_u *name); +void func_ref(char_u *name); +void ex_return(exarg_T *eap); +void ex_call(exarg_T *eap); +int do_return(exarg_T *eap, int reanimate, int is_cmd, void *rettv); +void discard_pending_return(void *rettv); +char_u *get_return_cmd(void *rettv); +char_u *get_func_line(int c, void *cookie, int indent); +void func_line_start(void *cookie); +void func_line_exec(void *cookie); +void func_line_end(void *cookie); +int func_has_ended(void *cookie); +int func_has_abort(void *cookie); +dict_T *make_partial(dict_T *selfdict_in, typval_T *rettv); +char_u *func_name(void *cookie); +linenr_T *func_breakpoint(void *cookie); +int *func_dbg_tick(void *cookie); +int func_level(void *cookie); +int current_func_returned(void); +void *save_funccal(void); +void restore_funccal(void *vfc); +int free_unref_funccal(int copyID, int testing); +hashtab_T *get_funccal_local_ht(void); +dictitem_T *get_funccal_local_var(void); +hashtab_T *get_funccal_args_ht(void); +dictitem_T *get_funccal_args_var(void); +void *clear_current_funccal(void); +void restore_current_funccal(void *f); +void list_func_vars(int *first); +dict_T *get_current_funccal_dict(hashtab_T *ht); +int set_ref_in_previous_funccal(int copyID); +int set_ref_in_call_stack(int copyID); +int set_ref_in_func_args(int copyID); +/* vim: set ft=c : */ diff --git a/src/structs.h b/src/structs.h --- a/src/structs.h +++ b/src/structs.h @@ -3117,3 +3117,48 @@ typedef struct int diff_mode; /* start with 'diff' set */ #endif } mparm_T; + +/* + * Structure returned by get_lval() and used by set_var_lval(). + * For a plain name: + * "name" points to the variable name. + * "exp_name" is NULL. + * "tv" is NULL + * For a magic braces name: + * "name" points to the expanded variable name. + * "exp_name" is non-NULL, to be freed later. + * "tv" is NULL + * For an index in a list: + * "name" points to the (expanded) variable name. + * "exp_name" NULL or non-NULL, to be freed later. + * "tv" points to the (first) list item value + * "li" points to the (first) list item + * "range", "n1", "n2" and "empty2" indicate what items are used. + * For an existing Dict item: + * "name" points to the (expanded) variable name. + * "exp_name" NULL or non-NULL, to be freed later. + * "tv" points to the dict item value + * "newkey" is NULL + * For a non-existing Dict item: + * "name" points to the (expanded) variable name. + * "exp_name" NULL or non-NULL, to be freed later. + * "tv" points to the Dictionary typval_T + * "newkey" is the key for the new item. + */ +typedef struct lval_S +{ + char_u *ll_name; /* start of variable name (can be NULL) */ + char_u *ll_exp_name; /* NULL or expanded name in allocated memory. */ + typval_T *ll_tv; /* Typeval of item being used. If "newkey" + isn't NULL it's the Dict to which to add + the item. */ + listitem_T *ll_li; /* The list item or NULL. */ + list_T *ll_list; /* The list or NULL. */ + int ll_range; /* TRUE when a [i:j] range was used */ + long ll_n1; /* First index for list */ + long ll_n2; /* Second index for list range */ + int ll_empty2; /* Second index is empty: [i:] */ + dict_T *ll_dict; /* The Dictionary or NULL */ + dictitem_T *ll_di; /* The dictitem or NULL */ + char_u *ll_newkey; /* New key for Dict in alloc. mem or NULL. */ +} lval_T; diff --git a/src/userfunc.c b/src/userfunc.c new file mode 100644 --- /dev/null +++ b/src/userfunc.c @@ -0,0 +1,3494 @@ +/* vi:set ts=8 sts=4 sw=4: + * + * VIM - Vi IMproved by Bram Moolenaar + * + * Do ":help uganda" in Vim to read copying and usage conditions. + * Do ":help credits" in Vim to see a list of people who contributed. + * See README.txt for an overview of the Vim source code. + */ + +/* + * eval.c: User defined function support + */ + +#include "vim.h" + +#if defined(FEAT_EVAL) || defined(PROTO) + +/* + * Structure to hold info for a user function. + */ +typedef struct ufunc ufunc_T; + +struct ufunc +{ + int uf_varargs; /* variable nr of arguments */ + int uf_flags; + int uf_calls; /* nr of active calls */ + garray_T uf_args; /* arguments */ + garray_T uf_lines; /* function lines */ +#ifdef FEAT_PROFILE + int uf_profiling; /* TRUE when func is being profiled */ + /* profiling the function as a whole */ + int uf_tm_count; /* nr of calls */ + proftime_T uf_tm_total; /* time spent in function + children */ + proftime_T uf_tm_self; /* time spent in function itself */ + proftime_T uf_tm_children; /* time spent in children this call */ + /* profiling the function per line */ + int *uf_tml_count; /* nr of times line was executed */ + proftime_T *uf_tml_total; /* time spent in a line + children */ + proftime_T *uf_tml_self; /* time spent in a line itself */ + proftime_T uf_tml_start; /* start time for current line */ + proftime_T uf_tml_children; /* time spent in children for this line */ + proftime_T uf_tml_wait; /* start wait time for current line */ + int uf_tml_idx; /* index of line being timed; -1 if none */ + int uf_tml_execed; /* line being timed was executed */ +#endif + scid_T uf_script_ID; /* ID of script where function was defined, + used for s: variables */ + int uf_refcount; /* for numbered function: reference count */ + char_u uf_name[1]; /* name of function (actually longer); can + start with 123_ ( is K_SPECIAL + KS_EXTRA KE_SNR) */ +}; + +/* function flags */ +#define FC_ABORT 1 /* abort function on error */ +#define FC_RANGE 2 /* function accepts range */ +#define FC_DICT 4 /* Dict function, uses "self" */ + +/* From user function to hashitem and back. */ +static ufunc_T dumuf; +#define UF2HIKEY(fp) ((fp)->uf_name) +#define HIKEY2UF(p) ((ufunc_T *)(p - (dumuf.uf_name - (char_u *)&dumuf))) +#define HI2UF(hi) HIKEY2UF((hi)->hi_key) + +#define FUNCARG(fp, j) ((char_u **)(fp->uf_args.ga_data))[j] +#define FUNCLINE(fp, j) ((char_u **)(fp->uf_lines.ga_data))[j] + +#define MAX_FUNC_ARGS 20 /* maximum number of function arguments */ +#define VAR_SHORT_LEN 20 /* short variable name length */ +#define FIXVAR_CNT 12 /* number of fixed variables */ + +/* structure to hold info for a function that is currently being executed. */ +typedef struct funccall_S funccall_T; + +struct funccall_S +{ + ufunc_T *func; /* function being called */ + int linenr; /* next line to be executed */ + int returned; /* ":return" used */ + struct /* fixed variables for arguments */ + { + dictitem_T var; /* variable (without room for name) */ + char_u room[VAR_SHORT_LEN]; /* room for the name */ + } fixvar[FIXVAR_CNT]; + dict_T l_vars; /* l: local function variables */ + dictitem_T l_vars_var; /* variable for l: scope */ + dict_T l_avars; /* a: argument variables */ + dictitem_T l_avars_var; /* variable for a: scope */ + list_T l_varlist; /* list for a:000 */ + listitem_T l_listitems[MAX_FUNC_ARGS]; /* listitems for a:000 */ + typval_T *rettv; /* return value */ + linenr_T breakpoint; /* next line with breakpoint or zero */ + int dbg_tick; /* debug_tick when breakpoint was set */ + int level; /* top nesting level of executed function */ +#ifdef FEAT_PROFILE + proftime_T prof_child; /* time spent in a child */ +#endif + funccall_T *caller; /* calling function or NULL */ +}; + +/* + * Struct used by trans_function_name() + */ +typedef struct +{ + dict_T *fd_dict; /* Dictionary used */ + char_u *fd_newkey; /* new key in "dict" in allocated memory */ + dictitem_T *fd_di; /* Dictionary item used */ +} funcdict_T; + +/* + * All user-defined functions are found in this hashtable. + */ +static hashtab_T func_hashtab; + +/* Used by get_func_tv() */ +static garray_T funcargs = GA_EMPTY; + +/* pointer to funccal for currently active function */ +funccall_T *current_funccal = NULL; + +/* pointer to list of previously used funccal, still around because some + * item in it is still being used. */ +funccall_T *previous_funccal = NULL; + +static char *e_funcexts = N_("E122: Function %s already exists, add ! to replace it"); +static char *e_funcdict = N_("E717: Dictionary entry already exists"); +static char *e_funcref = N_("E718: Funcref required"); +static char *e_nofunc = N_("E130: Unknown function: %s"); + +#ifdef FEAT_PROFILE +static void func_do_profile(ufunc_T *fp); +static void prof_sort_list(FILE *fd, ufunc_T **sorttab, int st_len, char *title, int prefer_self); +static void prof_func_line(FILE *fd, int count, proftime_T *total, proftime_T *self, int prefer_self); +static int +# ifdef __BORLANDC__ + _RTLENTRYF +# endif + prof_total_cmp(const void *s1, const void *s2); +static int +# ifdef __BORLANDC__ + _RTLENTRYF +# endif + prof_self_cmp(const void *s1, const void *s2); +#endif + + void +func_init() +{ + hash_init(&func_hashtab); +} + +/* Get function arguments. */ + static int +get_function_args( + char_u **argp, + char_u endchar, + garray_T *newargs, + int *varargs, + int skip) +{ + int mustend = FALSE; + char_u *arg = *argp; + char_u *p = arg; + int c; + int i; + + if (newargs != NULL) + ga_init2(newargs, (int)sizeof(char_u *), 3); + + if (varargs != NULL) + *varargs = FALSE; + + /* + * Isolate the arguments: "arg1, arg2, ...)" + */ + while (*p != endchar) + { + if (p[0] == '.' && p[1] == '.' && p[2] == '.') + { + if (varargs != NULL) + *varargs = TRUE; + p += 3; + mustend = TRUE; + } + else + { + arg = p; + while (ASCII_ISALNUM(*p) || *p == '_') + ++p; + if (arg == p || isdigit(*arg) + || (p - arg == 9 && STRNCMP(arg, "firstline", 9) == 0) + || (p - arg == 8 && STRNCMP(arg, "lastline", 8) == 0)) + { + if (!skip) + EMSG2(_("E125: Illegal argument: %s"), arg); + break; + } + if (newargs != NULL && ga_grow(newargs, 1) == FAIL) + return FAIL; + if (newargs != NULL) + { + c = *p; + *p = NUL; + arg = vim_strsave(arg); + if (arg == NULL) + goto err_ret; + + /* Check for duplicate argument name. */ + for (i = 0; i < newargs->ga_len; ++i) + if (STRCMP(((char_u **)(newargs->ga_data))[i], arg) == 0) + { + EMSG2(_("E853: Duplicate argument name: %s"), arg); + vim_free(arg); + goto err_ret; + } + ((char_u **)(newargs->ga_data))[newargs->ga_len] = arg; + newargs->ga_len++; + + *p = c; + } + if (*p == ',') + ++p; + else + mustend = TRUE; + } + p = skipwhite(p); + if (mustend && *p != endchar) + { + if (!skip) + EMSG2(_(e_invarg2), *argp); + break; + } + } + ++p; /* skip the ')' */ + + *argp = p; + return OK; + +err_ret: + if (newargs != NULL) + ga_clear_strings(newargs); + return FAIL; +} + +/* + * Parse a lambda expression and get a Funcref from "*arg". + * Return OK or FAIL. Returns NOTDONE for dict or {expr}. + */ + int +get_lambda_tv(char_u **arg, typval_T *rettv, int evaluate) +{ + garray_T newargs; + garray_T newlines; + ufunc_T *fp = NULL; + int varargs; + int ret; + char_u name[20]; + char_u *start = skipwhite(*arg + 1); + char_u *s, *e; + static int lambda_no = 0; + + ga_init(&newargs); + ga_init(&newlines); + + /* First, check if this is a lambda expression. "->" must exist. */ + ret = get_function_args(&start, '-', NULL, NULL, TRUE); + if (ret == FAIL || *start != '>') + return NOTDONE; + + /* Parse the arguments again. */ + *arg = skipwhite(*arg + 1); + ret = get_function_args(arg, '-', &newargs, &varargs, FALSE); + if (ret == FAIL || **arg != '>') + goto errret; + + /* Get the start and the end of the expression. */ + *arg = skipwhite(*arg + 1); + s = *arg; + ret = skip_expr(arg); + if (ret == FAIL) + goto errret; + e = *arg; + *arg = skipwhite(*arg); + if (**arg != '}') + goto errret; + ++*arg; + + if (evaluate) + { + int len; + char_u *p; + + fp = (ufunc_T *)alloc((unsigned)(sizeof(ufunc_T) + 20)); + if (fp == NULL) + goto errret; + + sprintf((char*)name, "%d", ++lambda_no); + + ga_init2(&newlines, (int)sizeof(char_u *), 1); + if (ga_grow(&newlines, 1) == FAIL) + goto errret; + + /* Add "return " before the expression. + * TODO: Support multiple expressions. */ + len = 7 + e - s + 1; + p = (char_u *)alloc(len); + if (p == NULL) + goto errret; + ((char_u **)(newlines.ga_data))[newlines.ga_len++] = p; + STRCPY(p, "return "); + STRNCPY(p + 7, s, e - s); + p[7 + e - s] = NUL; + + fp->uf_refcount = 1; + STRCPY(fp->uf_name, name); + hash_add(&func_hashtab, UF2HIKEY(fp)); + fp->uf_args = newargs; + fp->uf_lines = newlines; + +#ifdef FEAT_PROFILE + fp->uf_tml_count = NULL; + fp->uf_tml_total = NULL; + fp->uf_tml_self = NULL; + fp->uf_profiling = FALSE; + if (prof_def_func()) + func_do_profile(fp); +#endif + fp->uf_varargs = TRUE; + fp->uf_flags = 0; + fp->uf_calls = 0; + fp->uf_script_ID = current_SID; + + rettv->vval.v_string = vim_strsave(name); + rettv->v_type = VAR_FUNC; + } + else + ga_clear_strings(&newargs); + + return OK; + +errret: + ga_clear_strings(&newargs); + ga_clear_strings(&newlines); + vim_free(fp); + return FAIL; +} + +/* + * Check if "name" is a variable of type VAR_FUNC. If so, return the function + * name it contains, otherwise return "name". + * If "partialp" is not NULL, and "name" is of type VAR_PARTIAL also set + * "partialp". + */ + char_u * +deref_func_name(char_u *name, int *lenp, partial_T **partialp, int no_autoload) +{ + dictitem_T *v; + int cc; + + if (partialp != NULL) + *partialp = NULL; + + cc = name[*lenp]; + name[*lenp] = NUL; + v = find_var(name, NULL, no_autoload); + name[*lenp] = cc; + if (v != NULL && v->di_tv.v_type == VAR_FUNC) + { + if (v->di_tv.vval.v_string == NULL) + { + *lenp = 0; + return (char_u *)""; /* just in case */ + } + *lenp = (int)STRLEN(v->di_tv.vval.v_string); + return v->di_tv.vval.v_string; + } + + if (v != NULL && v->di_tv.v_type == VAR_PARTIAL) + { + partial_T *pt = v->di_tv.vval.v_partial; + + if (pt == NULL) + { + *lenp = 0; + return (char_u *)""; /* just in case */ + } + if (partialp != NULL) + *partialp = pt; + *lenp = (int)STRLEN(pt->pt_name); + return pt->pt_name; + } + + return name; +} + +/* + * Give an error message with a function name. Handle things. + * "ermsg" is to be passed without translation, use N_() instead of _(). + */ + static void +emsg_funcname(char *ermsg, char_u *name) +{ + char_u *p; + + if (*name == K_SPECIAL) + p = concat_str((char_u *)"", name + 3); + else + p = name; + EMSG2(_(ermsg), p); + if (p != name) + vim_free(p); +} + +/* + * Allocate a variable for the result of a function. + * Return OK or FAIL. + */ + int +get_func_tv( + char_u *name, /* name of the function */ + int len, /* length of "name" */ + typval_T *rettv, + char_u **arg, /* argument, pointing to the '(' */ + linenr_T firstline, /* first line of range */ + linenr_T lastline, /* last line of range */ + int *doesrange, /* return: function handled range */ + int evaluate, + partial_T *partial, /* for extra arguments */ + dict_T *selfdict) /* Dictionary for "self" */ +{ + char_u *argp; + int ret = OK; + typval_T argvars[MAX_FUNC_ARGS + 1]; /* vars for arguments */ + int argcount = 0; /* number of arguments found */ + + /* + * Get the arguments. + */ + argp = *arg; + while (argcount < MAX_FUNC_ARGS - (partial == NULL ? 0 : partial->pt_argc)) + { + argp = skipwhite(argp + 1); /* skip the '(' or ',' */ + if (*argp == ')' || *argp == ',' || *argp == NUL) + break; + if (eval1(&argp, &argvars[argcount], evaluate) == FAIL) + { + ret = FAIL; + break; + } + ++argcount; + if (*argp != ',') + break; + } + if (*argp == ')') + ++argp; + else + ret = FAIL; + + if (ret == OK) + { + int i = 0; + + if (get_vim_var_nr(VV_TESTING)) + { + /* Prepare for calling test_garbagecollect_now(), need to know + * what variables are used on the call stack. */ + if (funcargs.ga_itemsize == 0) + ga_init2(&funcargs, (int)sizeof(typval_T *), 50); + for (i = 0; i < argcount; ++i) + if (ga_grow(&funcargs, 1) == OK) + ((typval_T **)funcargs.ga_data)[funcargs.ga_len++] = + &argvars[i]; + } + + ret = call_func(name, len, rettv, argcount, argvars, + firstline, lastline, doesrange, evaluate, partial, selfdict); + + funcargs.ga_len -= i; + } + else if (!aborting()) + { + if (argcount == MAX_FUNC_ARGS) + emsg_funcname(N_("E740: Too many arguments for function %s"), name); + else + emsg_funcname(N_("E116: Invalid arguments for function %s"), name); + } + + while (--argcount >= 0) + clear_tv(&argvars[argcount]); + + *arg = skipwhite(argp); + return ret; +} + +#define FLEN_FIXED 40 + +/* + * Return TRUE if "p" starts with "" or "s:". + * Only works if eval_fname_script() returned non-zero for "p"! + */ + static int +eval_fname_sid(char_u *p) +{ + return (*p == 's' || TOUPPER_ASC(p[2]) == 'I'); +} + +/* + * In a script change name() and s:name() to K_SNR 123_name(). + * Change 123_name() to K_SNR 123_name(). + * Use "fname_buf[FLEN_FIXED + 1]" when it fits, otherwise allocate memory + * (slow). + */ + static char_u * +fname_trans_sid(char_u *name, char_u *fname_buf, char_u **tofree, int *error) +{ + int llen; + char_u *fname; + int i; + + llen = eval_fname_script(name); + if (llen > 0) + { + fname_buf[0] = K_SPECIAL; + fname_buf[1] = KS_EXTRA; + fname_buf[2] = (int)KE_SNR; + i = 3; + if (eval_fname_sid(name)) /* "" or "s:" */ + { + if (current_SID <= 0) + *error = ERROR_SCRIPT; + else + { + sprintf((char *)fname_buf + 3, "%ld_", (long)current_SID); + i = (int)STRLEN(fname_buf); + } + } + if (i + STRLEN(name + llen) < FLEN_FIXED) + { + STRCPY(fname_buf + i, name + llen); + fname = fname_buf; + } + else + { + fname = alloc((unsigned)(i + STRLEN(name + llen) + 1)); + if (fname == NULL) + *error = ERROR_OTHER; + else + { + *tofree = fname; + mch_memmove(fname, fname_buf, (size_t)i); + STRCPY(fname + i, name + llen); + } + } + } + else + fname = name; + return fname; +} + +/* + * Find a function by name, return pointer to it in ufuncs. + * Return NULL for unknown function. + */ + static ufunc_T * +find_func(char_u *name) +{ + hashitem_T *hi; + + hi = hash_find(&func_hashtab, name); + if (!HASHITEM_EMPTY(hi)) + return HI2UF(hi); + return NULL; +} + +/* + * Copy the function name of "fp" to buffer "buf". + * "buf" must be able to hold the function name plus three bytes. + * Takes care of script-local function names. + */ + static void +cat_func_name(char_u *buf, ufunc_T *fp) +{ + if (fp->uf_name[0] == K_SPECIAL) + { + STRCPY(buf, ""); + STRCAT(buf, fp->uf_name + 3); + } + else + STRCPY(buf, fp->uf_name); +} + +/* + * Add a number variable "name" to dict "dp" with value "nr". + */ + static void +add_nr_var( + dict_T *dp, + dictitem_T *v, + char *name, + varnumber_T nr) +{ + STRCPY(v->di_key, name); + v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; + hash_add(&dp->dv_hashtab, DI2HIKEY(v)); + v->di_tv.v_type = VAR_NUMBER; + v->di_tv.v_lock = VAR_FIXED; + v->di_tv.vval.v_number = nr; +} + +/* + * Free "fc" and what it contains. + */ + static void +free_funccal( + funccall_T *fc, + int free_val) /* a: vars were allocated */ +{ + listitem_T *li; + + /* The a: variables typevals may not have been allocated, only free the + * allocated variables. */ + vars_clear_ext(&fc->l_avars.dv_hashtab, free_val); + + /* free all l: variables */ + vars_clear(&fc->l_vars.dv_hashtab); + + /* Free the a:000 variables if they were allocated. */ + if (free_val) + for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next) + clear_tv(&li->li_tv); + + vim_free(fc); +} + +/* + * Call a user function. + */ + static void +call_user_func( + ufunc_T *fp, /* pointer to function */ + int argcount, /* nr of args */ + typval_T *argvars, /* arguments */ + typval_T *rettv, /* return value */ + linenr_T firstline, /* first line of range */ + linenr_T lastline, /* last line of range */ + dict_T *selfdict) /* Dictionary for "self" */ +{ + char_u *save_sourcing_name; + linenr_T save_sourcing_lnum; + scid_T save_current_SID; + funccall_T *fc; + int save_did_emsg; + static int depth = 0; + dictitem_T *v; + int fixvar_idx = 0; /* index in fixvar[] */ + int i; + int ai; + int islambda = FALSE; + char_u numbuf[NUMBUFLEN]; + char_u *name; + size_t len; +#ifdef FEAT_PROFILE + proftime_T wait_start; + proftime_T call_start; +#endif + + /* If depth of calling is getting too high, don't execute the function */ + if (depth >= p_mfd) + { + EMSG(_("E132: Function call depth is higher than 'maxfuncdepth'")); + rettv->v_type = VAR_NUMBER; + rettv->vval.v_number = -1; + return; + } + ++depth; + + line_breakcheck(); /* check for CTRL-C hit */ + + fc = (funccall_T *)alloc(sizeof(funccall_T)); + fc->caller = current_funccal; + current_funccal = fc; + fc->func = fp; + fc->rettv = rettv; + rettv->vval.v_number = 0; + fc->linenr = 0; + fc->returned = FALSE; + fc->level = ex_nesting_level; + /* Check if this function has a breakpoint. */ + fc->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, (linenr_T)0); + fc->dbg_tick = debug_tick; + + if (STRNCMP(fp->uf_name, "", 8) == 0) + islambda = TRUE; + + /* + * Note about using fc->fixvar[]: This is an array of FIXVAR_CNT variables + * with names up to VAR_SHORT_LEN long. This avoids having to alloc/free + * each argument variable and saves a lot of time. + */ + /* + * Init l: variables. + */ + init_var_dict(&fc->l_vars, &fc->l_vars_var, VAR_DEF_SCOPE); + if (selfdict != NULL) + { + /* Set l:self to "selfdict". Use "name" to avoid a warning from + * some compiler that checks the destination size. */ + v = &fc->fixvar[fixvar_idx++].var; + name = v->di_key; + STRCPY(name, "self"); + v->di_flags = DI_FLAGS_RO + DI_FLAGS_FIX; + hash_add(&fc->l_vars.dv_hashtab, DI2HIKEY(v)); + v->di_tv.v_type = VAR_DICT; + v->di_tv.v_lock = 0; + v->di_tv.vval.v_dict = selfdict; + ++selfdict->dv_refcount; + } + + /* + * Init a: variables. + * Set a:0 to "argcount". + * Set a:000 to a list with room for the "..." arguments. + */ + init_var_dict(&fc->l_avars, &fc->l_avars_var, VAR_SCOPE); + add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "0", + (varnumber_T)(argcount - fp->uf_args.ga_len)); + /* Use "name" to avoid a warning from some compiler that checks the + * destination size. */ + v = &fc->fixvar[fixvar_idx++].var; + name = v->di_key; + STRCPY(name, "000"); + v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; + hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v)); + v->di_tv.v_type = VAR_LIST; + v->di_tv.v_lock = VAR_FIXED; + v->di_tv.vval.v_list = &fc->l_varlist; + vim_memset(&fc->l_varlist, 0, sizeof(list_T)); + fc->l_varlist.lv_refcount = DO_NOT_FREE_CNT; + fc->l_varlist.lv_lock = VAR_FIXED; + + /* + * Set a:firstline to "firstline" and a:lastline to "lastline". + * Set a:name to named arguments. + * Set a:N to the "..." arguments. + */ + add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "firstline", + (varnumber_T)firstline); + add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "lastline", + (varnumber_T)lastline); + for (i = 0; i < argcount; ++i) + { + int addlocal = FALSE; + dictitem_T *v2; + + ai = i - fp->uf_args.ga_len; + if (ai < 0) + { + /* named argument a:name */ + name = FUNCARG(fp, i); + if (islambda) + addlocal = TRUE; + } + else + { + /* "..." argument a:1, a:2, etc. */ + sprintf((char *)numbuf, "%d", ai + 1); + name = numbuf; + } + if (fixvar_idx < FIXVAR_CNT && STRLEN(name) <= VAR_SHORT_LEN) + { + v = &fc->fixvar[fixvar_idx++].var; + v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX; + + if (addlocal) + v2 = v; + } + else + { + v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + + STRLEN(name))); + if (v == NULL) + break; + v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX | DI_FLAGS_ALLOC; + + if (addlocal) + { + v2 = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + + STRLEN(name))); + if (v2 == NULL) + { + vim_free(v); + break; + } + v2->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX | DI_FLAGS_ALLOC; + } + } + STRCPY(v->di_key, name); + hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v)); + + /* Note: the values are copied directly to avoid alloc/free. + * "argvars" must have VAR_FIXED for v_lock. */ + v->di_tv = argvars[i]; + v->di_tv.v_lock = VAR_FIXED; + + /* Named arguments can be accessed without the "a:" prefix in lambda + * expressions. Add to the l: dict. */ + if (addlocal) + { + STRCPY(v2->di_key, name); + copy_tv(&v->di_tv, &v2->di_tv); + v2->di_tv.v_lock = VAR_FIXED; + hash_add(&fc->l_vars.dv_hashtab, DI2HIKEY(v2)); + } + + if (ai >= 0 && ai < MAX_FUNC_ARGS) + { + list_append(&fc->l_varlist, &fc->l_listitems[ai]); + fc->l_listitems[ai].li_tv = argvars[i]; + fc->l_listitems[ai].li_tv.v_lock = VAR_FIXED; + } + } + + /* Don't redraw while executing the function. */ + ++RedrawingDisabled; + save_sourcing_name = sourcing_name; + save_sourcing_lnum = sourcing_lnum; + sourcing_lnum = 1; + /* need space for function name + ("function " + 3) or "[number]" */ + len = (save_sourcing_name == NULL ? 0 : STRLEN(save_sourcing_name)) + + STRLEN(fp->uf_name) + 20; + sourcing_name = alloc((unsigned)len); + if (sourcing_name != NULL) + { + if (save_sourcing_name != NULL + && STRNCMP(save_sourcing_name, "function ", 9) == 0) + sprintf((char *)sourcing_name, "%s[%d]..", + save_sourcing_name, (int)save_sourcing_lnum); + else + STRCPY(sourcing_name, "function "); + cat_func_name(sourcing_name + STRLEN(sourcing_name), fp); + + if (p_verbose >= 12) + { + ++no_wait_return; + verbose_enter_scroll(); + + smsg((char_u *)_("calling %s"), sourcing_name); + if (p_verbose >= 14) + { + char_u buf[MSG_BUF_LEN]; + char_u numbuf2[NUMBUFLEN]; + char_u *tofree; + char_u *s; + + msg_puts((char_u *)"("); + for (i = 0; i < argcount; ++i) + { + if (i > 0) + msg_puts((char_u *)", "); + if (argvars[i].v_type == VAR_NUMBER) + msg_outnum((long)argvars[i].vval.v_number); + else + { + /* Do not want errors such as E724 here. */ + ++emsg_off; + s = tv2string(&argvars[i], &tofree, numbuf2, 0); + --emsg_off; + if (s != NULL) + { + if (vim_strsize(s) > MSG_BUF_CLEN) + { + trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN); + s = buf; + } + msg_puts(s); + vim_free(tofree); + } + } + } + msg_puts((char_u *)")"); + } + msg_puts((char_u *)"\n"); /* don't overwrite this either */ + + verbose_leave_scroll(); + --no_wait_return; + } + } +#ifdef FEAT_PROFILE + if (do_profiling == PROF_YES) + { + if (!fp->uf_profiling && has_profiling(FALSE, fp->uf_name, NULL)) + func_do_profile(fp); + if (fp->uf_profiling + || (fc->caller != NULL && fc->caller->func->uf_profiling)) + { + ++fp->uf_tm_count; + profile_start(&call_start); + profile_zero(&fp->uf_tm_children); + } + script_prof_save(&wait_start); + } +#endif + + save_current_SID = current_SID; + current_SID = fp->uf_script_ID; + save_did_emsg = did_emsg; + did_emsg = FALSE; + + /* call do_cmdline() to execute the lines */ + do_cmdline(NULL, get_func_line, (void *)fc, + DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT); + + --RedrawingDisabled; + + /* when the function was aborted because of an error, return -1 */ + if ((did_emsg && (fp->uf_flags & FC_ABORT)) || rettv->v_type == VAR_UNKNOWN) + { + clear_tv(rettv); + rettv->v_type = VAR_NUMBER; + rettv->vval.v_number = -1; + } + +#ifdef FEAT_PROFILE + if (do_profiling == PROF_YES && (fp->uf_profiling + || (fc->caller != NULL && fc->caller->func->uf_profiling))) + { + profile_end(&call_start); + profile_sub_wait(&wait_start, &call_start); + profile_add(&fp->uf_tm_total, &call_start); + profile_self(&fp->uf_tm_self, &call_start, &fp->uf_tm_children); + if (fc->caller != NULL && fc->caller->func->uf_profiling) + { + profile_add(&fc->caller->func->uf_tm_children, &call_start); + profile_add(&fc->caller->func->uf_tml_children, &call_start); + } + } +#endif + + /* when being verbose, mention the return value */ + if (p_verbose >= 12) + { + ++no_wait_return; + verbose_enter_scroll(); + + if (aborting()) + smsg((char_u *)_("%s aborted"), sourcing_name); + else if (fc->rettv->v_type == VAR_NUMBER) + smsg((char_u *)_("%s returning #%ld"), sourcing_name, + (long)fc->rettv->vval.v_number); + else + { + char_u buf[MSG_BUF_LEN]; + char_u numbuf2[NUMBUFLEN]; + char_u *tofree; + char_u *s; + + /* The value may be very long. Skip the middle part, so that we + * have some idea how it starts and ends. smsg() would always + * truncate it at the end. Don't want errors such as E724 here. */ + ++emsg_off; + s = tv2string(fc->rettv, &tofree, numbuf2, 0); + --emsg_off; + if (s != NULL) + { + if (vim_strsize(s) > MSG_BUF_CLEN) + { + trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN); + s = buf; + } + smsg((char_u *)_("%s returning %s"), sourcing_name, s); + vim_free(tofree); + } + } + msg_puts((char_u *)"\n"); /* don't overwrite this either */ + + verbose_leave_scroll(); + --no_wait_return; + } + + vim_free(sourcing_name); + sourcing_name = save_sourcing_name; + sourcing_lnum = save_sourcing_lnum; + current_SID = save_current_SID; +#ifdef FEAT_PROFILE + if (do_profiling == PROF_YES) + script_prof_restore(&wait_start); +#endif + + if (p_verbose >= 12 && sourcing_name != NULL) + { + ++no_wait_return; + verbose_enter_scroll(); + + smsg((char_u *)_("continuing in %s"), sourcing_name); + msg_puts((char_u *)"\n"); /* don't overwrite this either */ + + verbose_leave_scroll(); + --no_wait_return; + } + + did_emsg |= save_did_emsg; + current_funccal = fc->caller; + --depth; + + /* If the a:000 list and the l: and a: dicts are not referenced we can + * free the funccall_T and what's in it. */ + if (fc->l_varlist.lv_refcount == DO_NOT_FREE_CNT + && fc->l_vars.dv_refcount == DO_NOT_FREE_CNT + && fc->l_avars.dv_refcount == DO_NOT_FREE_CNT) + { + free_funccal(fc, FALSE); + } + else + { + hashitem_T *hi; + listitem_T *li; + int todo; + + /* "fc" is still in use. This can happen when returning "a:000" or + * assigning "l:" to a global variable. + * Link "fc" in the list for garbage collection later. */ + fc->caller = previous_funccal; + previous_funccal = fc; + + /* Make a copy of the a: variables, since we didn't do that above. */ + todo = (int)fc->l_avars.dv_hashtab.ht_used; + for (hi = fc->l_avars.dv_hashtab.ht_array; todo > 0; ++hi) + { + if (!HASHITEM_EMPTY(hi)) + { + --todo; + v = HI2DI(hi); + copy_tv(&v->di_tv, &v->di_tv); + } + } + + /* Make a copy of the a:000 items, since we didn't do that above. */ + for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next) + copy_tv(&li->li_tv, &li->li_tv); + } +} + +/* + * Free a function and remove it from the list of functions. + */ + static void +func_free(ufunc_T *fp) +{ + hashitem_T *hi; + + /* clear this function */ + ga_clear_strings(&(fp->uf_args)); + ga_clear_strings(&(fp->uf_lines)); +#ifdef FEAT_PROFILE + vim_free(fp->uf_tml_count); + vim_free(fp->uf_tml_total); + vim_free(fp->uf_tml_self); +#endif + + /* remove the function from the function hashtable */ + hi = hash_find(&func_hashtab, UF2HIKEY(fp)); + if (HASHITEM_EMPTY(hi)) + EMSG2(_(e_intern2), "func_free()"); + else + hash_remove(&func_hashtab, hi); + + vim_free(fp); +} + +#if defined(EXITFREE) || defined(PROTO) + void +free_all_functions(void) +{ + hashitem_T *hi; + + /* Need to start all over every time, because func_free() may change the + * hash table. */ + while (func_hashtab.ht_used > 0) + for (hi = func_hashtab.ht_array; ; ++hi) + if (!HASHITEM_EMPTY(hi)) + { + func_free(HI2UF(hi)); + break; + } + hash_clear(&func_hashtab); +} +#endif + +/* + * Return TRUE if "name" looks like a builtin function name: starts with a + * lower case letter and doesn't contain AUTOLOAD_CHAR. + * "len" is the length of "name", or -1 for NUL terminated. + */ + static int +builtin_function(char_u *name, int len) +{ + char_u *p; + + if (!ASCII_ISLOWER(name[0])) + return FALSE; + p = vim_strchr(name, AUTOLOAD_CHAR); + return p == NULL || (len > 0 && p > name + len); +} + + int +func_call( + char_u *name, + typval_T *args, + partial_T *partial, + dict_T *selfdict, + typval_T *rettv) +{ + listitem_T *item; + typval_T argv[MAX_FUNC_ARGS + 1]; + int argc = 0; + int dummy; + int r = 0; + + for (item = args->vval.v_list->lv_first; item != NULL; + item = item->li_next) + { + if (argc == MAX_FUNC_ARGS - (partial == NULL ? 0 : partial->pt_argc)) + { + EMSG(_("E699: Too many arguments")); + break; + } + /* Make a copy of each argument. This is needed to be able to set + * v_lock to VAR_FIXED in the copy without changing the original list. + */ + copy_tv(&item->li_tv, &argv[argc++]); + } + + if (item == NULL) + r = call_func(name, (int)STRLEN(name), rettv, argc, argv, + curwin->w_cursor.lnum, curwin->w_cursor.lnum, + &dummy, TRUE, partial, selfdict); + + /* Free the arguments. */ + while (argc > 0) + clear_tv(&argv[--argc]); + + return r; +} + +/* + * Call a function with its resolved parameters + * Return FAIL when the function can't be called, OK otherwise. + * Also returns OK when an error was encountered while executing the function. + */ + int +call_func( + char_u *funcname, /* name of the function */ + int len, /* length of "name" */ + typval_T *rettv, /* return value goes here */ + int argcount_in, /* number of "argvars" */ + typval_T *argvars_in, /* vars for arguments, must have "argcount" + PLUS ONE elements! */ + linenr_T firstline, /* first line of range */ + linenr_T lastline, /* last line of range */ + int *doesrange, /* return: function handled range */ + int evaluate, + partial_T *partial, /* optional, can be NULL */ + dict_T *selfdict_in) /* Dictionary for "self" */ +{ + int ret = FAIL; + int error = ERROR_NONE; + int i; + ufunc_T *fp; + char_u fname_buf[FLEN_FIXED + 1]; + char_u *tofree = NULL; + char_u *fname; + char_u *name; + int argcount = argcount_in; + typval_T *argvars = argvars_in; + dict_T *selfdict = selfdict_in; + typval_T argv[MAX_FUNC_ARGS + 1]; /* used when "partial" is not NULL */ + int argv_clear = 0; + + /* Make a copy of the name, if it comes from a funcref variable it could + * be changed or deleted in the called function. */ + name = vim_strnsave(funcname, len); + if (name == NULL) + return ret; + + fname = fname_trans_sid(name, fname_buf, &tofree, &error); + + *doesrange = FALSE; + + if (partial != NULL) + { + /* When the function has a partial with a dict and there is a dict + * argument, use the dict argument. That is backwards compatible. + * When the dict was bound explicitly use the one from the partial. */ + if (partial->pt_dict != NULL + && (selfdict_in == NULL || !partial->pt_auto)) + selfdict = partial->pt_dict; + if (error == ERROR_NONE && partial->pt_argc > 0) + { + for (argv_clear = 0; argv_clear < partial->pt_argc; ++argv_clear) + copy_tv(&partial->pt_argv[argv_clear], &argv[argv_clear]); + for (i = 0; i < argcount_in; ++i) + argv[i + argv_clear] = argvars_in[i]; + argvars = argv; + argcount = partial->pt_argc + argcount_in; + } + } + + + /* execute the function if no errors detected and executing */ + if (evaluate && error == ERROR_NONE) + { + char_u *rfname = fname; + + /* Ignore "g:" before a function name. */ + if (fname[0] == 'g' && fname[1] == ':') + rfname = fname + 2; + + rettv->v_type = VAR_NUMBER; /* default rettv is number zero */ + rettv->vval.v_number = 0; + error = ERROR_UNKNOWN; + + if (!builtin_function(rfname, -1)) + { + /* + * User defined function. + */ + fp = find_func(rfname); + +#ifdef FEAT_AUTOCMD + /* Trigger FuncUndefined event, may load the function. */ + if (fp == NULL + && apply_autocmds(EVENT_FUNCUNDEFINED, + rfname, rfname, TRUE, NULL) + && !aborting()) + { + /* executed an autocommand, search for the function again */ + fp = find_func(rfname); + } +#endif + /* Try loading a package. */ + if (fp == NULL && script_autoload(rfname, TRUE) && !aborting()) + { + /* loaded a package, search for the function again */ + fp = find_func(rfname); + } + + if (fp != NULL) + { + if (fp->uf_flags & FC_RANGE) + *doesrange = TRUE; + if (argcount < fp->uf_args.ga_len) + error = ERROR_TOOFEW; + else if (!fp->uf_varargs && argcount > fp->uf_args.ga_len) + error = ERROR_TOOMANY; + else if ((fp->uf_flags & FC_DICT) && selfdict == NULL) + error = ERROR_DICT; + else + { + int did_save_redo = FALSE; + + /* + * Call the user function. + * Save and restore search patterns, script variables and + * redo buffer. + */ + save_search_patterns(); +#ifdef FEAT_INS_EXPAND + if (!ins_compl_active()) +#endif + { + saveRedobuff(); + did_save_redo = TRUE; + } + ++fp->uf_calls; + call_user_func(fp, argcount, argvars, rettv, + firstline, lastline, + (fp->uf_flags & FC_DICT) ? selfdict : NULL); + if (--fp->uf_calls <= 0 && (isdigit(*fp->uf_name) + || STRNCMP(fp->uf_name, "", 8) == 0) + && fp->uf_refcount <= 0) + /* Function was unreferenced while being used, free it + * now. */ + func_free(fp); + if (did_save_redo) + restoreRedobuff(); + restore_search_patterns(); + error = ERROR_NONE; + } + } + } + else + { + /* + * Find the function name in the table, call its implementation. + */ + error = call_internal_func(fname, argcount, argvars, rettv); + } + /* + * The function call (or "FuncUndefined" autocommand sequence) might + * have been aborted by an error, an interrupt, or an explicitly thrown + * exception that has not been caught so far. This situation can be + * tested for by calling aborting(). For an error in an internal + * function or for the "E132" error in call_user_func(), however, the + * throw point at which the "force_abort" flag (temporarily reset by + * emsg()) is normally updated has not been reached yet. We need to + * update that flag first to make aborting() reliable. + */ + update_force_abort(); + } + if (error == ERROR_NONE) + ret = OK; + + /* + * Report an error unless the argument evaluation or function call has been + * cancelled due to an aborting error, an interrupt, or an exception. + */ + if (!aborting()) + { + switch (error) + { + case ERROR_UNKNOWN: + emsg_funcname(N_("E117: Unknown function: %s"), name); + break; + case ERROR_TOOMANY: + emsg_funcname((char *)e_toomanyarg, name); + break; + case ERROR_TOOFEW: + emsg_funcname(N_("E119: Not enough arguments for function: %s"), + name); + break; + case ERROR_SCRIPT: + emsg_funcname(N_("E120: Using not in a script context: %s"), + name); + break; + case ERROR_DICT: + emsg_funcname(N_("E725: Calling dict function without Dictionary: %s"), + name); + break; + } + } + + while (argv_clear > 0) + clear_tv(&argv[--argv_clear]); + vim_free(tofree); + vim_free(name); + + return ret; +} + +/* + * List the head of the function: "name(arg1, arg2)". + */ + static void +list_func_head(ufunc_T *fp, int indent) +{ + int j; + + msg_start(); + if (indent) + MSG_PUTS(" "); + MSG_PUTS("function "); + if (fp->uf_name[0] == K_SPECIAL) + { + MSG_PUTS_ATTR("", hl_attr(HLF_8)); + msg_puts(fp->uf_name + 3); + } + else + msg_puts(fp->uf_name); + msg_putchar('('); + for (j = 0; j < fp->uf_args.ga_len; ++j) + { + if (j) + MSG_PUTS(", "); + msg_puts(FUNCARG(fp, j)); + } + if (fp->uf_varargs) + { + if (j) + MSG_PUTS(", "); + MSG_PUTS("..."); + } + msg_putchar(')'); + if (fp->uf_flags & FC_ABORT) + MSG_PUTS(" abort"); + if (fp->uf_flags & FC_RANGE) + MSG_PUTS(" range"); + if (fp->uf_flags & FC_DICT) + MSG_PUTS(" dict"); + msg_clr_eos(); + if (p_verbose > 0) + last_set_msg(fp->uf_script_ID); +} + +/* + * Get a function name, translating "" and "". + * Also handles a Funcref in a List or Dictionary. + * Returns the function name in allocated memory, or NULL for failure. + * flags: + * TFN_INT: internal function name OK + * TFN_QUIET: be quiet + * TFN_NO_AUTOLOAD: do not use script autoloading + * Advances "pp" to just after the function name (if no error). + */ + static char_u * +trans_function_name( + char_u **pp, + int skip, /* only find the end, don't evaluate */ + int flags, + funcdict_T *fdp, /* return: info about dictionary used */ + partial_T **partial) /* return: partial of a FuncRef */ +{ + char_u *name = NULL; + char_u *start; + char_u *end; + int lead; + char_u sid_buf[20]; + int len; + lval_T lv; + + if (fdp != NULL) + vim_memset(fdp, 0, sizeof(funcdict_T)); + start = *pp; + + /* Check for hard coded : already translated function ID (from a user + * command). */ + if ((*pp)[0] == K_SPECIAL && (*pp)[1] == KS_EXTRA + && (*pp)[2] == (int)KE_SNR) + { + *pp += 3; + len = get_id_len(pp) + 3; + return vim_strnsave(start, len); + } + + /* A name starting with "" or "" is local to a script. But + * don't skip over "s:", get_lval() needs it for "s:dict.func". */ + lead = eval_fname_script(start); + if (lead > 2) + start += lead; + + /* Note that TFN_ flags use the same values as GLV_ flags. */ + end = get_lval(start, NULL, &lv, FALSE, skip, flags, + lead > 2 ? 0 : FNE_CHECK_START); + if (end == start) + { + if (!skip) + EMSG(_("E129: Function name required")); + goto theend; + } + if (end == NULL || (lv.ll_tv != NULL && (lead > 2 || lv.ll_range))) + { + /* + * Report an invalid expression in braces, unless the expression + * evaluation has been cancelled due to an aborting error, an + * interrupt, or an exception. + */ + if (!aborting()) + { + if (end != NULL) + EMSG2(_(e_invarg2), start); + } + else + *pp = find_name_end(start, NULL, NULL, FNE_INCL_BR); + goto theend; + } + + if (lv.ll_tv != NULL) + { + if (fdp != NULL) + { + fdp->fd_dict = lv.ll_dict; + fdp->fd_newkey = lv.ll_newkey; + lv.ll_newkey = NULL; + fdp->fd_di = lv.ll_di; + } + if (lv.ll_tv->v_type == VAR_FUNC && lv.ll_tv->vval.v_string != NULL) + { + name = vim_strsave(lv.ll_tv->vval.v_string); + *pp = end; + } + else if (lv.ll_tv->v_type == VAR_PARTIAL + && lv.ll_tv->vval.v_partial != NULL) + { + name = vim_strsave(lv.ll_tv->vval.v_partial->pt_name); + *pp = end; + if (partial != NULL) + *partial = lv.ll_tv->vval.v_partial; + } + else + { + if (!skip && !(flags & TFN_QUIET) && (fdp == NULL + || lv.ll_dict == NULL || fdp->fd_newkey == NULL)) + EMSG(_(e_funcref)); + else + *pp = end; + name = NULL; + } + goto theend; + } + + if (lv.ll_name == NULL) + { + /* Error found, but continue after the function name. */ + *pp = end; + goto theend; + } + + /* Check if the name is a Funcref. If so, use the value. */ + if (lv.ll_exp_name != NULL) + { + len = (int)STRLEN(lv.ll_exp_name); + name = deref_func_name(lv.ll_exp_name, &len, partial, + flags & TFN_NO_AUTOLOAD); + if (name == lv.ll_exp_name) + name = NULL; + } + else + { + len = (int)(end - *pp); + name = deref_func_name(*pp, &len, partial, flags & TFN_NO_AUTOLOAD); + if (name == *pp) + name = NULL; + } + if (name != NULL) + { + name = vim_strsave(name); + *pp = end; + if (STRNCMP(name, "", 5) == 0) + { + /* Change "" to the byte sequence. */ + name[0] = K_SPECIAL; + name[1] = KS_EXTRA; + name[2] = (int)KE_SNR; + mch_memmove(name + 3, name + 5, STRLEN(name + 5) + 1); + } + goto theend; + } + + if (lv.ll_exp_name != NULL) + { + len = (int)STRLEN(lv.ll_exp_name); + if (lead <= 2 && lv.ll_name == lv.ll_exp_name + && STRNCMP(lv.ll_name, "s:", 2) == 0) + { + /* When there was "s:" already or the name expanded to get a + * leading "s:" then remove it. */ + lv.ll_name += 2; + len -= 2; + lead = 2; + } + } + else + { + /* skip over "s:" and "g:" */ + if (lead == 2 || (lv.ll_name[0] == 'g' && lv.ll_name[1] == ':')) + lv.ll_name += 2; + len = (int)(end - lv.ll_name); + } + + /* + * Copy the function name to allocated memory. + * Accept name() inside a script, translate into 123_name(). + * Accept 123_name() outside a script. + */ + if (skip) + lead = 0; /* do nothing */ + else if (lead > 0) + { + lead = 3; + if ((lv.ll_exp_name != NULL && eval_fname_sid(lv.ll_exp_name)) + || eval_fname_sid(*pp)) + { + /* It's "s:" or "" */ + if (current_SID <= 0) + { + EMSG(_(e_usingsid)); + goto theend; + } + sprintf((char *)sid_buf, "%ld_", (long)current_SID); + lead += (int)STRLEN(sid_buf); + } + } + else if (!(flags & TFN_INT) && builtin_function(lv.ll_name, len)) + { + EMSG2(_("E128: Function name must start with a capital or \"s:\": %s"), + start); + goto theend; + } + if (!skip && !(flags & TFN_QUIET)) + { + char_u *cp = vim_strchr(lv.ll_name, ':'); + + if (cp != NULL && cp < end) + { + EMSG2(_("E884: Function name cannot contain a colon: %s"), start); + goto theend; + } + } + + name = alloc((unsigned)(len + lead + 1)); + if (name != NULL) + { + if (lead > 0) + { + name[0] = K_SPECIAL; + name[1] = KS_EXTRA; + name[2] = (int)KE_SNR; + if (lead > 3) /* If it's "" */ + STRCPY(name + 3, sid_buf); + } + mch_memmove(name + lead, lv.ll_name, (size_t)len); + name[lead + len] = NUL; + } + *pp = end; + +theend: + clear_lval(&lv); + return name; +} + +/* + * ":function" + */ + void +ex_function(exarg_T *eap) +{ + char_u *theline; + int j; + int c; + int saved_did_emsg; + int saved_wait_return = need_wait_return; + char_u *name = NULL; + char_u *p; + char_u *arg; + char_u *line_arg = NULL; + garray_T newargs; + garray_T newlines; + int varargs = FALSE; + int flags = 0; + ufunc_T *fp; + int indent; + int nesting; + char_u *skip_until = NULL; + dictitem_T *v; + funcdict_T fudi; + static int func_nr = 0; /* number for nameless function */ + int paren; + hashtab_T *ht; + int todo; + hashitem_T *hi; + int sourcing_lnum_off; + + /* + * ":function" without argument: list functions. + */ + if (ends_excmd(*eap->arg)) + { + if (!eap->skip) + { + todo = (int)func_hashtab.ht_used; + for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) + { + if (!HASHITEM_EMPTY(hi)) + { + --todo; + fp = HI2UF(hi); + if (!isdigit(*fp->uf_name)) + list_func_head(fp, FALSE); + } + } + } + eap->nextcmd = check_nextcmd(eap->arg); + return; + } + + /* + * ":function /pat": list functions matching pattern. + */ + if (*eap->arg == '/') + { + p = skip_regexp(eap->arg + 1, '/', TRUE, NULL); + if (!eap->skip) + { + regmatch_T regmatch; + + c = *p; + *p = NUL; + regmatch.regprog = vim_regcomp(eap->arg + 1, RE_MAGIC); + *p = c; + if (regmatch.regprog != NULL) + { + regmatch.rm_ic = p_ic; + + todo = (int)func_hashtab.ht_used; + for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) + { + if (!HASHITEM_EMPTY(hi)) + { + --todo; + fp = HI2UF(hi); + if (!isdigit(*fp->uf_name) + && vim_regexec(®match, fp->uf_name, 0)) + list_func_head(fp, FALSE); + } + } + vim_regfree(regmatch.regprog); + } + } + if (*p == '/') + ++p; + eap->nextcmd = check_nextcmd(p); + return; + } + + /* + * Get the function name. There are these situations: + * func normal function name + * "name" == func, "fudi.fd_dict" == NULL + * dict.func new dictionary entry + * "name" == NULL, "fudi.fd_dict" set, + * "fudi.fd_di" == NULL, "fudi.fd_newkey" == func + * dict.func existing dict entry with a Funcref + * "name" == func, "fudi.fd_dict" set, + * "fudi.fd_di" set, "fudi.fd_newkey" == NULL + * dict.func existing dict entry that's not a Funcref + * "name" == NULL, "fudi.fd_dict" set, + * "fudi.fd_di" set, "fudi.fd_newkey" == NULL + * s:func script-local function name + * g:func global function name, same as "func" + */ + p = eap->arg; + name = trans_function_name(&p, eap->skip, 0, &fudi, NULL); + paren = (vim_strchr(p, '(') != NULL); + if (name == NULL && (fudi.fd_dict == NULL || !paren) && !eap->skip) + { + /* + * Return on an invalid expression in braces, unless the expression + * evaluation has been cancelled due to an aborting error, an + * interrupt, or an exception. + */ + if (!aborting()) + { + if (!eap->skip && fudi.fd_newkey != NULL) + EMSG2(_(e_dictkey), fudi.fd_newkey); + vim_free(fudi.fd_newkey); + return; + } + else + eap->skip = TRUE; + } + + /* An error in a function call during evaluation of an expression in magic + * braces should not cause the function not to be defined. */ + saved_did_emsg = did_emsg; + did_emsg = FALSE; + + /* + * ":function func" with only function name: list function. + */ + if (!paren) + { + if (!ends_excmd(*skipwhite(p))) + { + EMSG(_(e_trailing)); + goto ret_free; + } + eap->nextcmd = check_nextcmd(p); + if (eap->nextcmd != NULL) + *p = NUL; + if (!eap->skip && !got_int) + { + fp = find_func(name); + if (fp != NULL) + { + list_func_head(fp, TRUE); + for (j = 0; j < fp->uf_lines.ga_len && !got_int; ++j) + { + if (FUNCLINE(fp, j) == NULL) + continue; + msg_putchar('\n'); + msg_outnum((long)(j + 1)); + if (j < 9) + msg_putchar(' '); + if (j < 99) + msg_putchar(' '); + msg_prt_line(FUNCLINE(fp, j), FALSE); + out_flush(); /* show a line at a time */ + ui_breakcheck(); + } + if (!got_int) + { + msg_putchar('\n'); + msg_puts((char_u *)" endfunction"); + } + } + else + emsg_funcname(N_("E123: Undefined function: %s"), name); + } + goto ret_free; + } + + /* + * ":function name(arg1, arg2)" Define function. + */ + p = skipwhite(p); + if (*p != '(') + { + if (!eap->skip) + { + EMSG2(_("E124: Missing '(': %s"), eap->arg); + goto ret_free; + } + /* attempt to continue by skipping some text */ + if (vim_strchr(p, '(') != NULL) + p = vim_strchr(p, '('); + } + p = skipwhite(p + 1); + + ga_init2(&newlines, (int)sizeof(char_u *), 3); + + if (!eap->skip) + { + /* Check the name of the function. Unless it's a dictionary function + * (that we are overwriting). */ + if (name != NULL) + arg = name; + else + arg = fudi.fd_newkey; + if (arg != NULL && (fudi.fd_di == NULL + || (fudi.fd_di->di_tv.v_type != VAR_FUNC + && fudi.fd_di->di_tv.v_type != VAR_PARTIAL))) + { + if (*arg == K_SPECIAL) + j = 3; + else + j = 0; + while (arg[j] != NUL && (j == 0 ? eval_isnamec1(arg[j]) + : eval_isnamec(arg[j]))) + ++j; + if (arg[j] != NUL) + emsg_funcname((char *)e_invarg2, arg); + } + /* Disallow using the g: dict. */ + if (fudi.fd_dict != NULL && fudi.fd_dict->dv_scope == VAR_DEF_SCOPE) + EMSG(_("E862: Cannot use g: here")); + } + + if (get_function_args(&p, ')', &newargs, &varargs, eap->skip) == FAIL) + goto errret_2; + + /* find extra arguments "range", "dict" and "abort" */ + for (;;) + { + p = skipwhite(p); + if (STRNCMP(p, "range", 5) == 0) + { + flags |= FC_RANGE; + p += 5; + } + else if (STRNCMP(p, "dict", 4) == 0) + { + flags |= FC_DICT; + p += 4; + } + else if (STRNCMP(p, "abort", 5) == 0) + { + flags |= FC_ABORT; + p += 5; + } + else + break; + } + + /* When there is a line break use what follows for the function body. + * Makes 'exe "func Test()\n...\nendfunc"' work. */ + if (*p == '\n') + line_arg = p + 1; + else if (*p != NUL && *p != '"' && !eap->skip && !did_emsg) + EMSG(_(e_trailing)); + + /* + * Read the body of the function, until ":endfunction" is found. + */ + if (KeyTyped) + { + /* Check if the function already exists, don't let the user type the + * whole function before telling him it doesn't work! For a script we + * need to skip the body to be able to find what follows. */ + if (!eap->skip && !eap->forceit) + { + if (fudi.fd_dict != NULL && fudi.fd_newkey == NULL) + EMSG(_(e_funcdict)); + else if (name != NULL && find_func(name) != NULL) + emsg_funcname(e_funcexts, name); + } + + if (!eap->skip && did_emsg) + goto erret; + + msg_putchar('\n'); /* don't overwrite the function name */ + cmdline_row = msg_row; + } + + indent = 2; + nesting = 0; + for (;;) + { + if (KeyTyped) + { + msg_scroll = TRUE; + saved_wait_return = FALSE; + } + need_wait_return = FALSE; + sourcing_lnum_off = sourcing_lnum; + + if (line_arg != NULL) + { + /* Use eap->arg, split up in parts by line breaks. */ + theline = line_arg; + p = vim_strchr(theline, '\n'); + if (p == NULL) + line_arg += STRLEN(line_arg); + else + { + *p = NUL; + line_arg = p + 1; + } + } + else if (eap->getline == NULL) + theline = getcmdline(':', 0L, indent); + else + theline = eap->getline(':', eap->cookie, indent); + if (KeyTyped) + lines_left = Rows - 1; + if (theline == NULL) + { + EMSG(_("E126: Missing :endfunction")); + goto erret; + } + + /* Detect line continuation: sourcing_lnum increased more than one. */ + if (sourcing_lnum > sourcing_lnum_off + 1) + sourcing_lnum_off = sourcing_lnum - sourcing_lnum_off - 1; + else + sourcing_lnum_off = 0; + + if (skip_until != NULL) + { + /* between ":append" and "." and between ":python < 2 && STRNCMP(p, "end", 3) == 0) + indent -= 2; + else if (STRNCMP(p, "if", 2) == 0 + || STRNCMP(p, "wh", 2) == 0 + || STRNCMP(p, "for", 3) == 0 + || STRNCMP(p, "try", 3) == 0) + indent += 2; + + /* Check for defining a function inside this function. */ + if (checkforcmd(&p, "function", 2)) + { + if (*p == '!') + p = skipwhite(p + 1); + p += eval_fname_script(p); + vim_free(trans_function_name(&p, TRUE, 0, NULL, NULL)); + if (*skipwhite(p) == '(') + { + ++nesting; + indent += 2; + } + } + + /* Check for ":append" or ":insert". */ + p = skip_range(p, NULL); + if ((p[0] == 'a' && (!ASCII_ISALPHA(p[1]) || p[1] == 'p')) + || (p[0] == 'i' + && (!ASCII_ISALPHA(p[1]) || (p[1] == 'n' + && (!ASCII_ISALPHA(p[2]) || (p[2] == 's')))))) + skip_until = vim_strsave((char_u *)"."); + + /* Check for ":python < 0) + ((char_u **)(newlines.ga_data))[newlines.ga_len++] = NULL; + + /* Check for end of eap->arg. */ + if (line_arg != NULL && *line_arg == NUL) + line_arg = NULL; + } + + /* Don't define the function when skipping commands or when an error was + * detected. */ + if (eap->skip || did_emsg) + goto erret; + + /* + * If there are no errors, add the function + */ + if (fudi.fd_dict == NULL) + { + v = find_var(name, &ht, FALSE); + if (v != NULL && v->di_tv.v_type == VAR_FUNC) + { + emsg_funcname(N_("E707: Function name conflicts with variable: %s"), + name); + goto erret; + } + + fp = find_func(name); + if (fp != NULL) + { + if (!eap->forceit) + { + emsg_funcname(e_funcexts, name); + goto erret; + } + if (fp->uf_calls > 0) + { + emsg_funcname(N_("E127: Cannot redefine function %s: It is in use"), + name); + goto erret; + } + /* redefine existing function */ + ga_clear_strings(&(fp->uf_args)); + ga_clear_strings(&(fp->uf_lines)); + vim_free(name); + name = NULL; + } + } + else + { + char numbuf[20]; + + fp = NULL; + if (fudi.fd_newkey == NULL && !eap->forceit) + { + EMSG(_(e_funcdict)); + goto erret; + } + if (fudi.fd_di == NULL) + { + /* Can't add a function to a locked dictionary */ + if (tv_check_lock(fudi.fd_dict->dv_lock, eap->arg, FALSE)) + goto erret; + } + /* Can't change an existing function if it is locked */ + else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, eap->arg, FALSE)) + goto erret; + + /* Give the function a sequential number. Can only be used with a + * Funcref! */ + vim_free(name); + sprintf(numbuf, "%d", ++func_nr); + name = vim_strsave((char_u *)numbuf); + if (name == NULL) + goto erret; + } + + if (fp == NULL) + { + if (fudi.fd_dict == NULL && vim_strchr(name, AUTOLOAD_CHAR) != NULL) + { + int slen, plen; + char_u *scriptname; + + /* Check that the autoload name matches the script name. */ + j = FAIL; + if (sourcing_name != NULL) + { + scriptname = autoload_name(name); + if (scriptname != NULL) + { + p = vim_strchr(scriptname, '/'); + plen = (int)STRLEN(p); + slen = (int)STRLEN(sourcing_name); + if (slen > plen && fnamecmp(p, + sourcing_name + slen - plen) == 0) + j = OK; + vim_free(scriptname); + } + } + if (j == FAIL) + { + EMSG2(_("E746: Function name does not match script file name: %s"), name); + goto erret; + } + } + + fp = (ufunc_T *)alloc((unsigned)(sizeof(ufunc_T) + STRLEN(name))); + if (fp == NULL) + goto erret; + + if (fudi.fd_dict != NULL) + { + if (fudi.fd_di == NULL) + { + /* add new dict entry */ + fudi.fd_di = dictitem_alloc(fudi.fd_newkey); + if (fudi.fd_di == NULL) + { + vim_free(fp); + goto erret; + } + if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL) + { + vim_free(fudi.fd_di); + vim_free(fp); + goto erret; + } + } + else + /* overwrite existing dict entry */ + clear_tv(&fudi.fd_di->di_tv); + fudi.fd_di->di_tv.v_type = VAR_FUNC; + fudi.fd_di->di_tv.v_lock = 0; + fudi.fd_di->di_tv.vval.v_string = vim_strsave(name); + fp->uf_refcount = 1; + + /* behave like "dict" was used */ + flags |= FC_DICT; + } + + /* insert the new function in the function list */ + STRCPY(fp->uf_name, name); + if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL) + { + vim_free(fp); + goto erret; + } + } + fp->uf_args = newargs; + fp->uf_lines = newlines; +#ifdef FEAT_PROFILE + fp->uf_tml_count = NULL; + fp->uf_tml_total = NULL; + fp->uf_tml_self = NULL; + fp->uf_profiling = FALSE; + if (prof_def_func()) + func_do_profile(fp); +#endif + fp->uf_varargs = varargs; + fp->uf_flags = flags; + fp->uf_calls = 0; + fp->uf_script_ID = current_SID; + goto ret_free; + +erret: + ga_clear_strings(&newargs); +errret_2: + ga_clear_strings(&newlines); +ret_free: + vim_free(skip_until); + vim_free(fudi.fd_newkey); + vim_free(name); + did_emsg |= saved_did_emsg; + need_wait_return |= saved_wait_return; +} + +/* + * Return 5 if "p" starts with "" or "" (ignoring case). + * Return 2 if "p" starts with "s:". + * Return 0 otherwise. + */ + int +eval_fname_script(char_u *p) +{ + /* Use MB_STRICMP() because in Turkish comparing the "I" may not work with + * the standard library function. */ + if (p[0] == '<' && (MB_STRNICMP(p + 1, "SID>", 4) == 0 + || MB_STRNICMP(p + 1, "SNR>", 4) == 0)) + return 5; + if (p[0] == 's' && p[1] == ':') + return 2; + return 0; +} + + int +translated_function_exists(char_u *name) +{ + if (builtin_function(name, -1)) + return find_internal_func(name) >= 0; + return find_func(name) != NULL; +} + +/* + * Return TRUE if a function "name" exists. + */ + int +function_exists(char_u *name) +{ + char_u *nm = name; + char_u *p; + int n = FALSE; + + p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET|TFN_NO_AUTOLOAD, + NULL, NULL); + nm = skipwhite(nm); + + /* Only accept "funcname", "funcname ", "funcname (..." and + * "funcname(...", not "funcname!...". */ + if (p != NULL && (*nm == NUL || *nm == '(')) + n = translated_function_exists(p); + vim_free(p); + return n; +} + + char_u * +get_expanded_name(char_u *name, int check) +{ + char_u *nm = name; + char_u *p; + + p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET, NULL, NULL); + + if (p != NULL && *nm == NUL) + if (!check || translated_function_exists(p)) + return p; + + vim_free(p); + return NULL; +} + +#if defined(FEAT_PROFILE) || defined(PROTO) +/* + * Start profiling function "fp". + */ + static void +func_do_profile(ufunc_T *fp) +{ + int len = fp->uf_lines.ga_len; + + if (len == 0) + len = 1; /* avoid getting error for allocating zero bytes */ + fp->uf_tm_count = 0; + profile_zero(&fp->uf_tm_self); + profile_zero(&fp->uf_tm_total); + if (fp->uf_tml_count == NULL) + fp->uf_tml_count = (int *)alloc_clear((unsigned) (sizeof(int) * len)); + if (fp->uf_tml_total == NULL) + fp->uf_tml_total = (proftime_T *)alloc_clear((unsigned) + (sizeof(proftime_T) * len)); + if (fp->uf_tml_self == NULL) + fp->uf_tml_self = (proftime_T *)alloc_clear((unsigned) + (sizeof(proftime_T) * len)); + fp->uf_tml_idx = -1; + if (fp->uf_tml_count == NULL || fp->uf_tml_total == NULL + || fp->uf_tml_self == NULL) + return; /* out of memory */ + + fp->uf_profiling = TRUE; +} + +/* + * Dump the profiling results for all functions in file "fd". + */ + void +func_dump_profile(FILE *fd) +{ + hashitem_T *hi; + int todo; + ufunc_T *fp; + int i; + ufunc_T **sorttab; + int st_len = 0; + + todo = (int)func_hashtab.ht_used; + if (todo == 0) + return; /* nothing to dump */ + + sorttab = (ufunc_T **)alloc((unsigned)(sizeof(ufunc_T *) * todo)); + + for (hi = func_hashtab.ht_array; todo > 0; ++hi) + { + if (!HASHITEM_EMPTY(hi)) + { + --todo; + fp = HI2UF(hi); + if (fp->uf_profiling) + { + if (sorttab != NULL) + sorttab[st_len++] = fp; + + if (fp->uf_name[0] == K_SPECIAL) + fprintf(fd, "FUNCTION %s()\n", fp->uf_name + 3); + else + fprintf(fd, "FUNCTION %s()\n", fp->uf_name); + if (fp->uf_tm_count == 1) + fprintf(fd, "Called 1 time\n"); + else + fprintf(fd, "Called %d times\n", fp->uf_tm_count); + fprintf(fd, "Total time: %s\n", profile_msg(&fp->uf_tm_total)); + fprintf(fd, " Self time: %s\n", profile_msg(&fp->uf_tm_self)); + fprintf(fd, "\n"); + fprintf(fd, "count total (s) self (s)\n"); + + for (i = 0; i < fp->uf_lines.ga_len; ++i) + { + if (FUNCLINE(fp, i) == NULL) + continue; + prof_func_line(fd, fp->uf_tml_count[i], + &fp->uf_tml_total[i], &fp->uf_tml_self[i], TRUE); + fprintf(fd, "%s\n", FUNCLINE(fp, i)); + } + fprintf(fd, "\n"); + } + } + } + + if (sorttab != NULL && st_len > 0) + { + qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *), + prof_total_cmp); + prof_sort_list(fd, sorttab, st_len, "TOTAL", FALSE); + qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *), + prof_self_cmp); + prof_sort_list(fd, sorttab, st_len, "SELF", TRUE); + } + + vim_free(sorttab); +} + + static void +prof_sort_list( + FILE *fd, + ufunc_T **sorttab, + int st_len, + char *title, + int prefer_self) /* when equal print only self time */ +{ + int i; + ufunc_T *fp; + + fprintf(fd, "FUNCTIONS SORTED ON %s TIME\n", title); + fprintf(fd, "count total (s) self (s) function\n"); + for (i = 0; i < 20 && i < st_len; ++i) + { + fp = sorttab[i]; + prof_func_line(fd, fp->uf_tm_count, &fp->uf_tm_total, &fp->uf_tm_self, + prefer_self); + if (fp->uf_name[0] == K_SPECIAL) + fprintf(fd, " %s()\n", fp->uf_name + 3); + else + fprintf(fd, " %s()\n", fp->uf_name); + } + fprintf(fd, "\n"); +} + +/* + * Print the count and times for one function or function line. + */ + static void +prof_func_line( + FILE *fd, + int count, + proftime_T *total, + proftime_T *self, + int prefer_self) /* when equal print only self time */ +{ + if (count > 0) + { + fprintf(fd, "%5d ", count); + if (prefer_self && profile_equal(total, self)) + fprintf(fd, " "); + else + fprintf(fd, "%s ", profile_msg(total)); + if (!prefer_self && profile_equal(total, self)) + fprintf(fd, " "); + else + fprintf(fd, "%s ", profile_msg(self)); + } + else + fprintf(fd, " "); +} + +/* + * Compare function for total time sorting. + */ + static int +#ifdef __BORLANDC__ +_RTLENTRYF +#endif +prof_total_cmp(const void *s1, const void *s2) +{ + ufunc_T *p1, *p2; + + p1 = *(ufunc_T **)s1; + p2 = *(ufunc_T **)s2; + return profile_cmp(&p1->uf_tm_total, &p2->uf_tm_total); +} + +/* + * Compare function for self time sorting. + */ + static int +#ifdef __BORLANDC__ +_RTLENTRYF +#endif +prof_self_cmp(const void *s1, const void *s2) +{ + ufunc_T *p1, *p2; + + p1 = *(ufunc_T **)s1; + p2 = *(ufunc_T **)s2; + return profile_cmp(&p1->uf_tm_self, &p2->uf_tm_self); +} + +/* + * Prepare profiling for entering a child or something else that is not + * counted for the script/function itself. + * Should always be called in pair with prof_child_exit(). + */ + void +prof_child_enter( + proftime_T *tm) /* place to store waittime */ +{ + funccall_T *fc = current_funccal; + + if (fc != NULL && fc->func->uf_profiling) + profile_start(&fc->prof_child); + script_prof_save(tm); +} + +/* + * Take care of time spent in a child. + * Should always be called after prof_child_enter(). + */ + void +prof_child_exit( + proftime_T *tm) /* where waittime was stored */ +{ + funccall_T *fc = current_funccal; + + if (fc != NULL && fc->func->uf_profiling) + { + profile_end(&fc->prof_child); + profile_sub_wait(tm, &fc->prof_child); /* don't count waiting time */ + profile_add(&fc->func->uf_tm_children, &fc->prof_child); + profile_add(&fc->func->uf_tml_children, &fc->prof_child); + } + script_prof_restore(tm); +} + +#endif /* FEAT_PROFILE */ + +#if defined(FEAT_CMDL_COMPL) || defined(PROTO) + +/* + * Function given to ExpandGeneric() to obtain the list of user defined + * function names. + */ + char_u * +get_user_func_name(expand_T *xp, int idx) +{ + static long_u done; + static hashitem_T *hi; + ufunc_T *fp; + + if (idx == 0) + { + done = 0; + hi = func_hashtab.ht_array; + } + if (done < func_hashtab.ht_used) + { + if (done++ > 0) + ++hi; + while (HASHITEM_EMPTY(hi)) + ++hi; + fp = HI2UF(hi); + + if (fp->uf_flags & FC_DICT) + return (char_u *)""; /* don't show dict functions */ + + if (STRLEN(fp->uf_name) + 4 >= IOSIZE) + return fp->uf_name; /* prevents overflow */ + + cat_func_name(IObuff, fp); + if (xp->xp_context != EXPAND_USER_FUNC) + { + STRCAT(IObuff, "("); + if (!fp->uf_varargs && fp->uf_args.ga_len == 0) + STRCAT(IObuff, ")"); + } + return IObuff; + } + return NULL; +} + +#endif /* FEAT_CMDL_COMPL */ + +/* + * ":delfunction {name}" + */ + void +ex_delfunction(exarg_T *eap) +{ + ufunc_T *fp = NULL; + char_u *p; + char_u *name; + funcdict_T fudi; + + p = eap->arg; + name = trans_function_name(&p, eap->skip, 0, &fudi, NULL); + vim_free(fudi.fd_newkey); + if (name == NULL) + { + if (fudi.fd_dict != NULL && !eap->skip) + EMSG(_(e_funcref)); + return; + } + if (!ends_excmd(*skipwhite(p))) + { + vim_free(name); + EMSG(_(e_trailing)); + return; + } + eap->nextcmd = check_nextcmd(p); + if (eap->nextcmd != NULL) + *p = NUL; + + if (!eap->skip) + fp = find_func(name); + vim_free(name); + + if (!eap->skip) + { + if (fp == NULL) + { + EMSG2(_(e_nofunc), eap->arg); + return; + } + if (fp->uf_calls > 0) + { + EMSG2(_("E131: Cannot delete function %s: It is in use"), eap->arg); + return; + } + + if (fudi.fd_dict != NULL) + { + /* Delete the dict item that refers to the function, it will + * invoke func_unref() and possibly delete the function. */ + dictitem_remove(fudi.fd_dict, fudi.fd_di); + } + else + func_free(fp); + } +} + +/* + * Unreference a Function: decrement the reference count and free it when it + * becomes zero. Only for numbered functions. + */ + void +func_unref(char_u *name) +{ + ufunc_T *fp; + + if (name == NULL) + return; + else if (isdigit(*name)) + { + fp = find_func(name); + if (fp == NULL) + { +#ifdef EXITFREE + if (!entered_free_all_mem) +#endif + EMSG2(_(e_intern2), "func_unref()"); + } + else if (--fp->uf_refcount <= 0) + { + /* Only delete it when it's not being used. Otherwise it's done + * when "uf_calls" becomes zero. */ + if (fp->uf_calls == 0) + func_free(fp); + } + } + else if (STRNCMP(name, "", 8) == 0) + { + /* fail silently, when lambda function isn't found. */ + fp = find_func(name); + if (fp != NULL && --fp->uf_refcount <= 0) + { + /* Only delete it when it's not being used. Otherwise it's done + * when "uf_calls" becomes zero. */ + if (fp->uf_calls == 0) + func_free(fp); + } + } +} + +/* + * Count a reference to a Function. + */ + void +func_ref(char_u *name) +{ + ufunc_T *fp; + + if (name == NULL) + return; + else if (isdigit(*name)) + { + fp = find_func(name); + if (fp == NULL) + EMSG2(_(e_intern2), "func_ref()"); + else + ++fp->uf_refcount; + } + else if (STRNCMP(name, "", 8) == 0) + { + /* fail silently, when lambda function isn't found. */ + fp = find_func(name); + if (fp != NULL) + ++fp->uf_refcount; + } +} + +/* + * Return TRUE if items in "fc" do not have "copyID". That means they are not + * referenced from anywhere that is in use. + */ + static int +can_free_funccal(funccall_T *fc, int copyID) +{ + return (fc->l_varlist.lv_copyID != copyID + && fc->l_vars.dv_copyID != copyID + && fc->l_avars.dv_copyID != copyID); +} + +/* + * ":return [expr]" + */ + void +ex_return(exarg_T *eap) +{ + char_u *arg = eap->arg; + typval_T rettv; + int returning = FALSE; + + if (current_funccal == NULL) + { + EMSG(_("E133: :return not inside a function")); + return; + } + + if (eap->skip) + ++emsg_skip; + + eap->nextcmd = NULL; + if ((*arg != NUL && *arg != '|' && *arg != '\n') + && eval0(arg, &rettv, &eap->nextcmd, !eap->skip) != FAIL) + { + if (!eap->skip) + returning = do_return(eap, FALSE, TRUE, &rettv); + else + clear_tv(&rettv); + } + /* It's safer to return also on error. */ + else if (!eap->skip) + { + /* + * Return unless the expression evaluation has been cancelled due to an + * aborting error, an interrupt, or an exception. + */ + if (!aborting()) + returning = do_return(eap, FALSE, TRUE, NULL); + } + + /* When skipping or the return gets pending, advance to the next command + * in this line (!returning). Otherwise, ignore the rest of the line. + * Following lines will be ignored by get_func_line(). */ + if (returning) + eap->nextcmd = NULL; + else if (eap->nextcmd == NULL) /* no argument */ + eap->nextcmd = check_nextcmd(arg); + + if (eap->skip) + --emsg_skip; +} + +/* + * ":1,25call func(arg1, arg2)" function call. + */ + void +ex_call(exarg_T *eap) +{ + char_u *arg = eap->arg; + char_u *startarg; + char_u *name; + char_u *tofree; + int len; + typval_T rettv; + linenr_T lnum; + int doesrange; + int failed = FALSE; + funcdict_T fudi; + partial_T *partial = NULL; + + if (eap->skip) + { + /* trans_function_name() doesn't work well when skipping, use eval0() + * instead to skip to any following command, e.g. for: + * :if 0 | call dict.foo().bar() | endif */ + ++emsg_skip; + if (eval0(eap->arg, &rettv, &eap->nextcmd, FALSE) != FAIL) + clear_tv(&rettv); + --emsg_skip; + return; + } + + tofree = trans_function_name(&arg, eap->skip, TFN_INT, &fudi, &partial); + if (fudi.fd_newkey != NULL) + { + /* Still need to give an error message for missing key. */ + EMSG2(_(e_dictkey), fudi.fd_newkey); + vim_free(fudi.fd_newkey); + } + if (tofree == NULL) + return; + + /* Increase refcount on dictionary, it could get deleted when evaluating + * the arguments. */ + if (fudi.fd_dict != NULL) + ++fudi.fd_dict->dv_refcount; + + /* If it is the name of a variable of type VAR_FUNC or VAR_PARTIAL use its + * contents. For VAR_PARTIAL get its partial, unless we already have one + * from trans_function_name(). */ + len = (int)STRLEN(tofree); + name = deref_func_name(tofree, &len, + partial != NULL ? NULL : &partial, FALSE); + + /* Skip white space to allow ":call func ()". Not good, but required for + * backward compatibility. */ + startarg = skipwhite(arg); + rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */ + + if (*startarg != '(') + { + EMSG2(_("E107: Missing parentheses: %s"), eap->arg); + goto end; + } + + /* + * When skipping, evaluate the function once, to find the end of the + * arguments. + * When the function takes a range, this is discovered after the first + * call, and the loop is broken. + */ + if (eap->skip) + { + ++emsg_skip; + lnum = eap->line2; /* do it once, also with an invalid range */ + } + else + lnum = eap->line1; + for ( ; lnum <= eap->line2; ++lnum) + { + if (!eap->skip && eap->addr_count > 0) + { + curwin->w_cursor.lnum = lnum; + curwin->w_cursor.col = 0; +#ifdef FEAT_VIRTUALEDIT + curwin->w_cursor.coladd = 0; +#endif + } + arg = startarg; + if (get_func_tv(name, (int)STRLEN(name), &rettv, &arg, + eap->line1, eap->line2, &doesrange, + !eap->skip, partial, fudi.fd_dict) == FAIL) + { + failed = TRUE; + break; + } + + /* Handle a function returning a Funcref, Dictionary or List. */ + if (handle_subscript(&arg, &rettv, !eap->skip, TRUE) == FAIL) + { + failed = TRUE; + break; + } + + clear_tv(&rettv); + if (doesrange || eap->skip) + break; + + /* Stop when immediately aborting on error, or when an interrupt + * occurred or an exception was thrown but not caught. + * get_func_tv() returned OK, so that the check for trailing + * characters below is executed. */ + if (aborting()) + break; + } + if (eap->skip) + --emsg_skip; + + if (!failed) + { + /* Check for trailing illegal characters and a following command. */ + if (!ends_excmd(*arg)) + { + emsg_severe = TRUE; + EMSG(_(e_trailing)); + } + else + eap->nextcmd = check_nextcmd(arg); + } + +end: + dict_unref(fudi.fd_dict); + vim_free(tofree); +} + +/* + * Return from a function. Possibly makes the return pending. Also called + * for a pending return at the ":endtry" or after returning from an extra + * do_cmdline(). "reanimate" is used in the latter case. "is_cmd" is set + * when called due to a ":return" command. "rettv" may point to a typval_T + * with the return rettv. Returns TRUE when the return can be carried out, + * FALSE when the return gets pending. + */ + int +do_return( + exarg_T *eap, + int reanimate, + int is_cmd, + void *rettv) +{ + int idx; + struct condstack *cstack = eap->cstack; + + if (reanimate) + /* Undo the return. */ + current_funccal->returned = FALSE; + + /* + * Cleanup (and inactivate) conditionals, but stop when a try conditional + * not in its finally clause (which then is to be executed next) is found. + * In this case, make the ":return" pending for execution at the ":endtry". + * Otherwise, return normally. + */ + idx = cleanup_conditionals(eap->cstack, 0, TRUE); + if (idx >= 0) + { + cstack->cs_pending[idx] = CSTP_RETURN; + + if (!is_cmd && !reanimate) + /* A pending return again gets pending. "rettv" points to an + * allocated variable with the rettv of the original ":return"'s + * argument if present or is NULL else. */ + cstack->cs_rettv[idx] = rettv; + else + { + /* When undoing a return in order to make it pending, get the stored + * return rettv. */ + if (reanimate) + rettv = current_funccal->rettv; + + if (rettv != NULL) + { + /* Store the value of the pending return. */ + if ((cstack->cs_rettv[idx] = alloc_tv()) != NULL) + *(typval_T *)cstack->cs_rettv[idx] = *(typval_T *)rettv; + else + EMSG(_(e_outofmem)); + } + else + cstack->cs_rettv[idx] = NULL; + + if (reanimate) + { + /* The pending return value could be overwritten by a ":return" + * without argument in a finally clause; reset the default + * return value. */ + current_funccal->rettv->v_type = VAR_NUMBER; + current_funccal->rettv->vval.v_number = 0; + } + } + report_make_pending(CSTP_RETURN, rettv); + } + else + { + current_funccal->returned = TRUE; + + /* If the return is carried out now, store the return value. For + * a return immediately after reanimation, the value is already + * there. */ + if (!reanimate && rettv != NULL) + { + clear_tv(current_funccal->rettv); + *current_funccal->rettv = *(typval_T *)rettv; + if (!is_cmd) + vim_free(rettv); + } + } + + return idx < 0; +} + +/* + * Free the variable with a pending return value. + */ + void +discard_pending_return(void *rettv) +{ + free_tv((typval_T *)rettv); +} + +/* + * Generate a return command for producing the value of "rettv". The result + * is an allocated string. Used by report_pending() for verbose messages. + */ + char_u * +get_return_cmd(void *rettv) +{ + char_u *s = NULL; + char_u *tofree = NULL; + char_u numbuf[NUMBUFLEN]; + + if (rettv != NULL) + s = echo_string((typval_T *)rettv, &tofree, numbuf, 0); + if (s == NULL) + s = (char_u *)""; + + STRCPY(IObuff, ":return "); + STRNCPY(IObuff + 8, s, IOSIZE - 8); + if (STRLEN(s) + 8 >= IOSIZE) + STRCPY(IObuff + IOSIZE - 4, "..."); + vim_free(tofree); + return vim_strsave(IObuff); +} + +/* + * Get next function line. + * Called by do_cmdline() to get the next line. + * Returns allocated string, or NULL for end of function. + */ + char_u * +get_func_line( + int c UNUSED, + void *cookie, + int indent UNUSED) +{ + funccall_T *fcp = (funccall_T *)cookie; + ufunc_T *fp = fcp->func; + char_u *retval; + garray_T *gap; /* growarray with function lines */ + + /* If breakpoints have been added/deleted need to check for it. */ + if (fcp->dbg_tick != debug_tick) + { + fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, + sourcing_lnum); + fcp->dbg_tick = debug_tick; + } +#ifdef FEAT_PROFILE + if (do_profiling == PROF_YES) + func_line_end(cookie); +#endif + + gap = &fp->uf_lines; + if (((fp->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try()) + || fcp->returned) + retval = NULL; + else + { + /* Skip NULL lines (continuation lines). */ + while (fcp->linenr < gap->ga_len + && ((char_u **)(gap->ga_data))[fcp->linenr] == NULL) + ++fcp->linenr; + if (fcp->linenr >= gap->ga_len) + retval = NULL; + else + { + retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->linenr++]); + sourcing_lnum = fcp->linenr; +#ifdef FEAT_PROFILE + if (do_profiling == PROF_YES) + func_line_start(cookie); +#endif + } + } + + /* Did we encounter a breakpoint? */ + if (fcp->breakpoint != 0 && fcp->breakpoint <= sourcing_lnum) + { + dbg_breakpoint(fp->uf_name, sourcing_lnum); + /* Find next breakpoint. */ + fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, + sourcing_lnum); + fcp->dbg_tick = debug_tick; + } + + return retval; +} + +#if defined(FEAT_PROFILE) || defined(PROTO) +/* + * Called when starting to read a function line. + * "sourcing_lnum" must be correct! + * When skipping lines it may not actually be executed, but we won't find out + * until later and we need to store the time now. + */ + void +func_line_start(void *cookie) +{ + funccall_T *fcp = (funccall_T *)cookie; + ufunc_T *fp = fcp->func; + + if (fp->uf_profiling && sourcing_lnum >= 1 + && sourcing_lnum <= fp->uf_lines.ga_len) + { + fp->uf_tml_idx = sourcing_lnum - 1; + /* Skip continuation lines. */ + while (fp->uf_tml_idx > 0 && FUNCLINE(fp, fp->uf_tml_idx) == NULL) + --fp->uf_tml_idx; + fp->uf_tml_execed = FALSE; + profile_start(&fp->uf_tml_start); + profile_zero(&fp->uf_tml_children); + profile_get_wait(&fp->uf_tml_wait); + } +} + +/* + * Called when actually executing a function line. + */ + void +func_line_exec(void *cookie) +{ + funccall_T *fcp = (funccall_T *)cookie; + ufunc_T *fp = fcp->func; + + if (fp->uf_profiling && fp->uf_tml_idx >= 0) + fp->uf_tml_execed = TRUE; +} + +/* + * Called when done with a function line. + */ + void +func_line_end(void *cookie) +{ + funccall_T *fcp = (funccall_T *)cookie; + ufunc_T *fp = fcp->func; + + if (fp->uf_profiling && fp->uf_tml_idx >= 0) + { + if (fp->uf_tml_execed) + { + ++fp->uf_tml_count[fp->uf_tml_idx]; + profile_end(&fp->uf_tml_start); + profile_sub_wait(&fp->uf_tml_wait, &fp->uf_tml_start); + profile_add(&fp->uf_tml_total[fp->uf_tml_idx], &fp->uf_tml_start); + profile_self(&fp->uf_tml_self[fp->uf_tml_idx], &fp->uf_tml_start, + &fp->uf_tml_children); + } + fp->uf_tml_idx = -1; + } +} +#endif + +/* + * Return TRUE if the currently active function should be ended, because a + * return was encountered or an error occurred. Used inside a ":while". + */ + int +func_has_ended(void *cookie) +{ + funccall_T *fcp = (funccall_T *)cookie; + + /* Ignore the "abort" flag if the abortion behavior has been changed due to + * an error inside a try conditional. */ + return (((fcp->func->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try()) + || fcp->returned); +} + +/* + * return TRUE if cookie indicates a function which "abort"s on errors. + */ + int +func_has_abort( + void *cookie) +{ + return ((funccall_T *)cookie)->func->uf_flags & FC_ABORT; +} + + +/* + * Turn "dict.Func" into a partial for "Func" bound to "dict". + * Don't do this when "Func" is already a partial that was bound + * explicitly (pt_auto is FALSE). + * Changes "rettv" in-place. + * Returns the updated "selfdict_in". + */ + dict_T * +make_partial(dict_T *selfdict_in, typval_T *rettv) +{ + char_u *fname = rettv->v_type == VAR_FUNC ? rettv->vval.v_string + : rettv->vval.v_partial->pt_name; + char_u *tofree = NULL; + ufunc_T *fp; + char_u fname_buf[FLEN_FIXED + 1]; + int error; + dict_T *selfdict = selfdict_in; + + /* Translate "s:func" to the stored function name. */ + fname = fname_trans_sid(fname, fname_buf, &tofree, &error); + fp = find_func(fname); + vim_free(tofree); + + if (fp != NULL && (fp->uf_flags & FC_DICT)) + { + partial_T *pt = (partial_T *)alloc_clear(sizeof(partial_T)); + + if (pt != NULL) + { + pt->pt_refcount = 1; + pt->pt_dict = selfdict; + pt->pt_auto = TRUE; + selfdict = NULL; + if (rettv->v_type == VAR_FUNC) + { + /* Just a function: Take over the function name and use + * selfdict. */ + pt->pt_name = rettv->vval.v_string; + } + else + { + partial_T *ret_pt = rettv->vval.v_partial; + int i; + + /* Partial: copy the function name, use selfdict and copy + * args. Can't take over name or args, the partial might + * be referenced elsewhere. */ + pt->pt_name = vim_strsave(ret_pt->pt_name); + func_ref(pt->pt_name); + if (ret_pt->pt_argc > 0) + { + pt->pt_argv = (typval_T *)alloc( + sizeof(typval_T) * ret_pt->pt_argc); + if (pt->pt_argv == NULL) + /* out of memory: drop the arguments */ + pt->pt_argc = 0; + else + { + pt->pt_argc = ret_pt->pt_argc; + for (i = 0; i < pt->pt_argc; i++) + copy_tv(&ret_pt->pt_argv[i], &pt->pt_argv[i]); + } + } + partial_unref(ret_pt); + } + rettv->v_type = VAR_PARTIAL; + rettv->vval.v_partial = pt; + } + } + return selfdict; +} + +/* + * Return the name of the executed function. + */ + char_u * +func_name(void *cookie) +{ + return ((funccall_T *)cookie)->func->uf_name; +} + +/* + * Return the address holding the next breakpoint line for a funccall cookie. + */ + linenr_T * +func_breakpoint(void *cookie) +{ + return &((funccall_T *)cookie)->breakpoint; +} + +/* + * Return the address holding the debug tick for a funccall cookie. + */ + int * +func_dbg_tick(void *cookie) +{ + return &((funccall_T *)cookie)->dbg_tick; +} + +/* + * Return the nesting level for a funccall cookie. + */ + int +func_level(void *cookie) +{ + return ((funccall_T *)cookie)->level; +} + +/* + * Return TRUE when a function was ended by a ":return" command. + */ + int +current_func_returned(void) +{ + return current_funccal->returned; +} + +/* + * Save the current function call pointer, and set it to NULL. + * Used when executing autocommands and for ":source". + */ + void * +save_funccal(void) +{ + funccall_T *fc = current_funccal; + + current_funccal = NULL; + return (void *)fc; +} + + void +restore_funccal(void *vfc) +{ + funccall_T *fc = (funccall_T *)vfc; + + current_funccal = fc; +} + + int +free_unref_funccal(int copyID, int testing) +{ + int did_free = FALSE; + int did_free_funccal = FALSE; + funccall_T *fc, **pfc; + + for (pfc = &previous_funccal; *pfc != NULL; ) + { + if (can_free_funccal(*pfc, copyID)) + { + fc = *pfc; + *pfc = fc->caller; + free_funccal(fc, TRUE); + did_free = TRUE; + did_free_funccal = TRUE; + } + else + pfc = &(*pfc)->caller; + } + if (did_free_funccal) + /* When a funccal was freed some more items might be garbage + * collected, so run again. */ + (void)garbage_collect(testing); + + return did_free; +} + +/* + * Get function call environment based on bactrace debug level + */ + static funccall_T * +get_funccal(void) +{ + int i; + funccall_T *funccal; + funccall_T *temp_funccal; + + funccal = current_funccal; + if (debug_backtrace_level > 0) + { + for (i = 0; i < debug_backtrace_level; i++) + { + temp_funccal = funccal->caller; + if (temp_funccal) + funccal = temp_funccal; + else + /* backtrace level overflow. reset to max */ + debug_backtrace_level = i; + } + } + return funccal; +} + +/* + * Return the hashtable used for local variables in the current funccal. + * Return NULL if there is no current funccal. + */ + hashtab_T * +get_funccal_local_ht() +{ + if (current_funccal == NULL) + return NULL; + return &get_funccal()->l_vars.dv_hashtab; +} + +/* + * Return the l: scope variable. + * Return NULL if there is no current funccal. + */ + dictitem_T * +get_funccal_local_var() +{ + if (current_funccal == NULL) + return NULL; + return &get_funccal()->l_vars_var; +} + +/* + * Return the hashtable used for argument in the current funccal. + * Return NULL if there is no current funccal. + */ + hashtab_T * +get_funccal_args_ht() +{ + if (current_funccal == NULL) + return NULL; + return &get_funccal()->l_avars.dv_hashtab; +} + +/* + * Return the a: scope variable. + * Return NULL if there is no current funccal. + */ + dictitem_T * +get_funccal_args_var() +{ + if (current_funccal == NULL) + return NULL; + return ¤t_funccal->l_avars_var; +} + +/* + * Clear the current_funccal and return the old value. + * Caller is expected to invoke restore_current_funccal(). + */ + void * +clear_current_funccal() +{ + funccall_T *f = current_funccal; + + current_funccal = NULL; + return f; +} + + void +restore_current_funccal(void *f) +{ + current_funccal = f; +} + +/* + * List function variables, if there is a function. + */ + void +list_func_vars(int *first) +{ + if (current_funccal != NULL) + list_hashtable_vars(¤t_funccal->l_vars.dv_hashtab, + (char_u *)"l:", FALSE, first); +} + +/* + * If "ht" is the hashtable for local variables in the current funccal, return + * the dict that contains it. + * Otherwise return NULL. + */ + dict_T * +get_current_funccal_dict(hashtab_T *ht) +{ + if (current_funccal != NULL + && ht == ¤t_funccal->l_vars.dv_hashtab) + return ¤t_funccal->l_vars; + return NULL; +} + +/* + * Set "copyID + 1" in previous_funccal and callers. + */ + int +set_ref_in_previous_funccal(int copyID) +{ + int abort = FALSE; + funccall_T *fc; + + for (fc = previous_funccal; fc != NULL; fc = fc->caller) + { + abort = abort || set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID + 1, + NULL); + abort = abort || set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID + 1, + NULL); + } + return abort; +} + +/* + * Set "copyID" in all local vars and arguments in the call stack. + */ + int +set_ref_in_call_stack(int copyID) +{ + int abort = FALSE; + funccall_T *fc; + + for (fc = current_funccal; fc != NULL; fc = fc->caller) + { + abort = abort || set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID, NULL); + abort = abort || set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID, NULL); + } + return abort; +} + +/* + * Set "copyID" in all function arguments. + */ + int +set_ref_in_func_args(int copyID) +{ + int i; + int abort = FALSE; + + for (i = 0; i < funcargs.ga_len; ++i) + abort = abort || set_ref_in_item(((typval_T **)funcargs.ga_data)[i], + copyID, NULL, NULL); + return abort; +} + +#endif /* FEAT_EVAL */ diff --git a/src/version.c b/src/version.c --- a/src/version.c +++ b/src/version.c @@ -759,6 +759,8 @@ static char *(features[]) = static int included_patches[] = { /* Add new patch number below this line */ /**/ + 2058, +/**/ 2057, /**/ 2056, diff --git a/src/vim.h b/src/vim.h --- a/src/vim.h +++ b/src/vim.h @@ -2407,4 +2407,29 @@ int vim_main2(int argc, char **argv); #define COPYID_INC 2 #define COPYID_MASK (~0x1) +/* Values for trans_function_name() argument: */ +#define TFN_INT 1 /* internal function name OK */ +#define TFN_QUIET 2 /* no error messages */ +#define TFN_NO_AUTOLOAD 4 /* do not use script autoloading */ + +/* Values for get_lval() flags argument: */ +#define GLV_QUIET TFN_QUIET /* no error messages */ +#define GLV_NO_AUTOLOAD TFN_NO_AUTOLOAD /* do not use script autoloading */ + +#define DO_NOT_FREE_CNT 99999 /* refcount for dict or list that should not + be freed. */ + +/* errors for when calling a function */ +#define ERROR_UNKNOWN 0 +#define ERROR_TOOMANY 1 +#define ERROR_TOOFEW 2 +#define ERROR_SCRIPT 3 +#define ERROR_DICT 4 +#define ERROR_NONE 5 +#define ERROR_OTHER 6 + +/* flags for find_name_end() */ +#define FNE_INCL_BR 1 /* include [] in name */ +#define FNE_CHECK_START 2 /* check name starts with valid character */ + #endif /* VIM__H */