Adding upstream version 2:8.1.0875.upstream/2%8.1.0875upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 3956 insertions, 0 deletions

diff --git a/src/userfunc.c b/src/userfunc.c
new file mode 100644
index 0000000..acbab90
--- /dev/null
+++ b/src/userfunc.c
@@ -0,0 +1,3956 @@
+/* vi:set ts=8 sts=4 sw=4 noet:
+ *
+ * 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)
+// flags used in uf_flags
+#define FC_ABORT    0x01	// abort function on error
+#define FC_RANGE    0x02	// function accepts range
+#define FC_DICT	    0x04	// Dict function, uses "self"
+#define FC_CLOSURE  0x08	// closure, uses outer scope variables
+#define FC_DELETED  0x10	// :delfunction used while uf_refcount > 0
+#define FC_REMOVED  0x20	// function redefined while uf_refcount > 0
+#define FC_SANDBOX  0x40	// function defined in the sandbox
+
+/* From user function to hashitem and back. */
+#define UF2HIKEY(fp) ((fp)->uf_name)
+#define HIKEY2UF(p)  ((ufunc_T *)((p) - offsetof(ufunc_T, uf_name)))
+#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]
+
+/*
+ * 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
+static void funccal_unref(funccall_T *fc, ufunc_T *fp, int force);
+
+    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)
+		    semsg(_("E125: Illegal argument: %s"), arg);
+		break;
+	    }
+	    if (newargs != NULL && ga_grow(newargs, 1) == FAIL)
+		goto err_ret;
+	    if (newargs != NULL)
+	    {
+		c = *p;
+		*p = NUL;
+		arg = vim_strsave(arg);
+		if (arg == NULL)
+		{
+		    *p = c;
+		    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)
+		    {
+			semsg(_("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)
+		semsg(_(e_invarg2), *argp);
+	    break;
+	}
+    }
+    if (*p != endchar)
+	goto err_ret;
+    ++p;	/* skip "endchar" */
+
+    *argp = p;
+    return OK;
+
+err_ret:
+    if (newargs != NULL)
+	ga_clear_strings(newargs);
+    return FAIL;
+}
+
+/*
+ * Register function "fp" as using "current_funccal" as its scope.
+ */
+    static int
+register_closure(ufunc_T *fp)
+{
+    if (fp->uf_scoped == current_funccal)
+	/* no change */
+	return OK;
+    funccal_unref(fp->uf_scoped, fp, FALSE);
+    fp->uf_scoped = current_funccal;
+    current_funccal->fc_refcount++;
+
+    if (ga_grow(&current_funccal->fc_funcs, 1) == FAIL)
+	return FAIL;
+    ((ufunc_T **)current_funccal->fc_funcs.ga_data)
+	[current_funccal->fc_funcs.ga_len++] = fp;
+    return OK;
+}
+
+/*
+ * 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;
+    garray_T	*pnewargs;
+    ufunc_T	*fp = NULL;
+    int		varargs;
+    int		ret;
+    char_u	*start = skipwhite(*arg + 1);
+    char_u	*s, *e;
+    static int	lambda_no = 0;
+    int		*old_eval_lavars = eval_lavars_used;
+    int		eval_lavars = FALSE;
+
+    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. */
+    if (evaluate)
+	pnewargs = &newargs;
+    else
+	pnewargs = NULL;
+    *arg = skipwhite(*arg + 1);
+    ret = get_function_args(arg, '-', pnewargs, &varargs, FALSE);
+    if (ret == FAIL || **arg != '>')
+	goto errret;
+
+    /* Set up a flag for checking local variables and arguments. */
+    if (evaluate)
+	eval_lavars_used = &eval_lavars;
+
+    /* 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, flags = 0;
+	char_u	    *p;
+	char_u	    name[20];
+	partial_T   *pt;
+
+	sprintf((char*)name, "<lambda>%d", ++lambda_no);
+
+	fp = (ufunc_T *)alloc_clear((unsigned)(sizeof(ufunc_T) + STRLEN(name)));
+	if (fp == NULL)
+	    goto errret;
+	pt = (partial_T *)alloc_clear((unsigned)sizeof(partial_T));
+	if (pt == NULL)
+	{
+	    vim_free(fp);
+	    goto errret;
+	}
+
+	ga_init2(&newlines, (int)sizeof(char_u *), 1);
+	if (ga_grow(&newlines, 1) == FAIL)
+	    goto errret;
+
+	/* Add "return " before the expression. */
+	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 ");
+	vim_strncpy(p + 7, s, e - s);
+
+	fp->uf_refcount = 1;
+	STRCPY(fp->uf_name, name);
+	hash_add(&func_hashtab, UF2HIKEY(fp));
+	fp->uf_args = newargs;
+	fp->uf_lines = newlines;
+	if (current_funccal != NULL && eval_lavars)
+	{
+	    flags |= FC_CLOSURE;
+	    if (register_closure(fp) == FAIL)
+		goto errret;
+	}
+	else
+	    fp->uf_scoped = NULL;
+
+#ifdef FEAT_PROFILE
+	if (prof_def_func())
+	    func_do_profile(fp);
+#endif
+	if (sandbox)
+	    flags |= FC_SANDBOX;
+	fp->uf_varargs = TRUE;
+	fp->uf_flags = flags;
+	fp->uf_calls = 0;
+	fp->uf_script_ctx = current_sctx;
+	fp->uf_script_ctx.sc_lnum += sourcing_lnum - newlines.ga_len;
+
+	pt->pt_func = fp;
+	pt->pt_refcount = 1;
+	rettv->vval.v_partial = pt;
+	rettv->v_type = VAR_PARTIAL;
+    }
+
+    eval_lavars_used = old_eval_lavars;
+    return OK;
+
+errret:
+    ga_clear_strings(&newargs);
+    ga_clear_strings(&newlines);
+    vim_free(fp);
+    eval_lavars_used = old_eval_lavars;
+    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;
+    char_u	*s;
+
+    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 */
+	}
+	s = v->di_tv.vval.v_string;
+	*lenp = (int)STRLEN(s);
+	return s;
+    }
+
+    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;
+	s = partial_name(pt);
+	*lenp = (int)STRLEN(s);
+	return s;
+    }
+
+    return name;
+}
+
+/*
+ * Give an error message with a function name.  Handle <SNR> 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 *)"<SNR>", name + 3);
+    else
+	p = name;
+    semsg(_(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, NULL,
+		 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 "<SID>" 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 <SID>name() and s:name() to K_SNR 123_name().
+ * Change <SNR>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))	/* "<SID>" or "s:" */
+	{
+	    if (current_sctx.sc_sid <= 0)
+		*error = ERROR_SCRIPT;
+	    else
+	    {
+		sprintf((char *)fname_buf + 3, "%ld_", (long)current_sctx.sc_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.
+ */
+    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, "<SNR>");
+	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;
+    int		i;
+
+    for (i = 0; i < fc->fc_funcs.ga_len; ++i)
+    {
+	ufunc_T	    *fp = ((ufunc_T **)(fc->fc_funcs.ga_data))[i];
+
+	/* When garbage collecting a funccall_T may be freed before the
+	 * function that references it, clear its uf_scoped field.
+	 * The function may have been redefined and point to another
+	 * funccall_T, don't clear it then. */
+	if (fp != NULL && fp->uf_scoped == fc)
+	    fp->uf_scoped = NULL;
+    }
+    ga_clear(&fc->fc_funcs);
+
+    /* 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);
+
+    func_ptr_unref(fc->func);
+    vim_free(fc);
+}
+
+/*
+ * Handle the last part of returning from a function: free the local hashtable.
+ * Unless it is still in use by a closure.
+ */
+    static void
+cleanup_function_call(funccall_T *fc)
+{
+    current_funccal = fc->caller;
+
+    /* If the a:000 list and the l: and a: dicts are not referenced and there
+     * is no closure using it, 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
+	    && fc->fc_refcount <= 0)
+    {
+	free_funccal(fc, FALSE);
+    }
+    else
+    {
+	hashitem_T	*hi;
+	listitem_T	*li;
+	int		todo;
+	dictitem_T	*v;
+	static int	made_copy = 0;
+
+	/* "fc" is still in use.  This can happen when returning "a:000",
+	 * assigning "l:" to a global variable or defining a closure.
+	 * 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);
+
+	if (++made_copy == 10000)
+	{
+	    // We have made a lot of copies.  This can happen when
+	    // repetitively calling a function that creates a reference to
+	    // itself somehow.  Call the garbage collector soon to avoid using
+	    // too much memory.
+	    made_copy = 0;
+	    want_garbage_collect = TRUE;
+	}
+    }
+}
+
+/*
+ * 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;
+    sctx_T	save_current_sctx;
+    int		using_sandbox = FALSE;
+    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;
+    int		started_profiling = FALSE;
+#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));
+    if (fc == NULL)
+	return;
+    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;
+    /* Set up fields for closure. */
+    fc->fc_refcount = 0;
+    fc->fc_copyID = 0;
+    ga_init2(&fc->fc_funcs, sizeof(ufunc_T *), 1);
+    func_ptr_ref(fp);
+
+    if (STRNCMP(fp->uf_name, "<lambda>", 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;
+
+	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;
+	}
+	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;
+	}
+	STRCPY(v->di_key, name);
+
+	/* 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;
+
+	if (addlocal)
+	{
+	    /* Named arguments should be accessed without the "a:" prefix in
+	     * lambda expressions.  Add to the l: dict. */
+	    copy_tv(&v->di_tv, &v->di_tv);
+	    hash_add(&fc->l_vars.dv_hashtab, DI2HIKEY(v));
+	}
+	else
+	    hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v));
+
+	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;
+
+    if (fp->uf_flags & FC_SANDBOX)
+    {
+	using_sandbox = TRUE;
+	++sandbox;
+    }
+
+    /* 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(_("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("(");
+		for (i = 0; i < argcount; ++i)
+		{
+		    if (i > 0)
+			msg_puts(", ");
+		    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((char *)s);
+			    vim_free(tofree);
+			}
+		    }
+		}
+		msg_puts(")");
+	    }
+	    msg_puts("\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))
+	{
+	    started_profiling = TRUE;
+	    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_sctx = current_sctx;
+    current_sctx = fp->uf_script_ctx;
+    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);
+	}
+	if (started_profiling)
+	    // make a ":profdel func" stop profiling the function
+	    fp->uf_profiling = FALSE;
+    }
+#endif
+
+    /* when being verbose, mention the return value */
+    if (p_verbose >= 12)
+    {
+	++no_wait_return;
+	verbose_enter_scroll();
+
+	if (aborting())
+	    smsg(_("%s aborted"), sourcing_name);
+	else if (fc->rettv->v_type == VAR_NUMBER)
+	    smsg(_("%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(_("%s returning %s"), sourcing_name, s);
+		vim_free(tofree);
+	    }
+	}
+	msg_puts("\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_sctx = save_current_sctx;
+#ifdef FEAT_PROFILE
+    if (do_profiling == PROF_YES)
+	script_prof_restore(&wait_start);
+#endif
+    if (using_sandbox)
+	--sandbox;
+
+    if (p_verbose >= 12 && sourcing_name != NULL)
+    {
+	++no_wait_return;
+	verbose_enter_scroll();
+
+	smsg(_("continuing in %s"), sourcing_name);
+	msg_puts("\n");   /* don't overwrite this either */
+
+	verbose_leave_scroll();
+	--no_wait_return;
+    }
+
+    did_emsg |= save_did_emsg;
+    --depth;
+
+    cleanup_function_call(fc);
+}
+
+/*
+ * Unreference "fc": decrement the reference count and free it when it
+ * becomes zero.  "fp" is detached from "fc".
+ * When "force" is TRUE we are exiting.
+ */
+    static void
+funccal_unref(funccall_T *fc, ufunc_T *fp, int force)
+{
+    funccall_T	**pfc;
+    int		i;
+
+    if (fc == NULL)
+	return;
+
+    if (--fc->fc_refcount <= 0 && (force || (
+		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)))
+	for (pfc = &previous_funccal; *pfc != NULL; pfc = &(*pfc)->caller)
+	{
+	    if (fc == *pfc)
+	    {
+		*pfc = fc->caller;
+		free_funccal(fc, TRUE);
+		return;
+	    }
+	}
+    for (i = 0; i < fc->fc_funcs.ga_len; ++i)
+	if (((ufunc_T **)(fc->fc_funcs.ga_data))[i] == fp)
+	    ((ufunc_T **)(fc->fc_funcs.ga_data))[i] = NULL;
+}
+
+/*
+ * Remove the function from the function hashtable.  If the function was
+ * deleted while it still has references this was already done.
+ * Return TRUE if the entry was deleted, FALSE if it wasn't found.
+ */
+    static int
+func_remove(ufunc_T *fp)
+{
+    hashitem_T	*hi = hash_find(&func_hashtab, UF2HIKEY(fp));
+
+    if (!HASHITEM_EMPTY(hi))
+    {
+	hash_remove(&func_hashtab, hi);
+	return TRUE;
+    }
+    return FALSE;
+}
+
+    static void
+func_clear_items(ufunc_T *fp)
+{
+    ga_clear_strings(&(fp->uf_args));
+    ga_clear_strings(&(fp->uf_lines));
+#ifdef FEAT_PROFILE
+    vim_free(fp->uf_tml_count);
+    fp->uf_tml_count = NULL;
+    vim_free(fp->uf_tml_total);
+    fp->uf_tml_total = NULL;
+    vim_free(fp->uf_tml_self);
+    fp->uf_tml_self = NULL;
+#endif
+}
+
+/*
+ * Free all things that a function contains.  Does not free the function
+ * itself, use func_free() for that.
+ * When "force" is TRUE we are exiting.
+ */
+    static void
+func_clear(ufunc_T *fp, int force)
+{
+    if (fp->uf_cleared)
+	return;
+    fp->uf_cleared = TRUE;
+
+    /* clear this function */
+    func_clear_items(fp);
+    funccal_unref(fp->uf_scoped, fp, force);
+}
+
+/*
+ * Free a function and remove it from the list of functions.  Does not free
+ * what a function contains, call func_clear() first.
+ */
+    static void
+func_free(ufunc_T *fp)
+{
+    /* only remove it when not done already, otherwise we would remove a newer
+     * version of the function */
+    if ((fp->uf_flags & (FC_DELETED | FC_REMOVED)) == 0)
+	func_remove(fp);
+
+    vim_free(fp);
+}
+
+/*
+ * Free all things that a function contains and free the function itself.
+ * When "force" is TRUE we are exiting.
+ */
+    static void
+func_clear_free(ufunc_T *fp, int force)
+{
+    func_clear(fp, force);
+    func_free(fp);
+}
+
+/*
+ * There are two kinds of function names:
+ * 1. ordinary names, function defined with :function
+ * 2. numbered functions and lambdas
+ * For the first we only count the name stored in func_hashtab as a reference,
+ * using function() does not count as a reference, because the function is
+ * looked up by name.
+ */
+    static int
+func_name_refcount(char_u *name)
+{
+    return isdigit(*name) || *name == '<';
+}
+
+static funccal_entry_T *funccal_stack = NULL;
+
+/*
+ * Save the current function call pointer, and set it to NULL.
+ * Used when executing autocommands and for ":source".
+ */
+    void
+save_funccal(funccal_entry_T *entry)
+{
+    entry->top_funccal = current_funccal;
+    entry->next = funccal_stack;
+    funccal_stack = entry;
+    current_funccal = NULL;
+}
+
+    void
+restore_funccal(void)
+{
+    if (funccal_stack == NULL)
+	iemsg("INTERNAL: restore_funccal()");
+    else
+    {
+	current_funccal = funccal_stack->top_funccal;
+	funccal_stack = funccal_stack->next;
+    }
+}
+
+#if defined(EXITFREE) || defined(PROTO)
+    void
+free_all_functions(void)
+{
+    hashitem_T	*hi;
+    ufunc_T	*fp;
+    long_u	skipped = 0;
+    long_u	todo = 1;
+    long_u	used;
+
+    /* Clean up the current_funccal chain and the funccal stack. */
+    while (current_funccal != NULL)
+    {
+	clear_tv(current_funccal->rettv);
+	cleanup_function_call(current_funccal);
+	if (current_funccal == NULL && funccal_stack != NULL)
+	    restore_funccal();
+    }
+
+    /* First clear what the functions contain.  Since this may lower the
+     * reference count of a function, it may also free a function and change
+     * the hash table. Restart if that happens. */
+    while (todo > 0)
+    {
+	todo = func_hashtab.ht_used;
+	for (hi = func_hashtab.ht_array; todo > 0; ++hi)
+	    if (!HASHITEM_EMPTY(hi))
+	    {
+		/* Only free functions that are not refcounted, those are
+		 * supposed to be freed when no longer referenced. */
+		fp = HI2UF(hi);
+		if (func_name_refcount(fp->uf_name))
+		    ++skipped;
+		else
+		{
+		    used = func_hashtab.ht_used;
+		    func_clear(fp, TRUE);
+		    if (used != func_hashtab.ht_used)
+		    {
+			skipped = 0;
+			break;
+		    }
+		}
+		--todo;
+	    }
+    }
+
+    /* Now actually free the functions.  Need to start all over every time,
+     * because func_free() may change the hash table. */
+    skipped = 0;
+    while (func_hashtab.ht_used > skipped)
+    {
+	todo = func_hashtab.ht_used;
+	for (hi = func_hashtab.ht_array; todo > 0; ++hi)
+	    if (!HASHITEM_EMPTY(hi))
+	    {
+		--todo;
+		/* Only free functions that are not refcounted, those are
+		 * supposed to be freed when no longer referenced. */
+		fp = HI2UF(hi);
+		if (func_name_refcount(fp->uf_name))
+		    ++skipped;
+		else
+		{
+		    func_free(fp);
+		    skipped = 0;
+		    break;
+		}
+	    }
+    }
+    if (skipped == 0)
+	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, NULL,
+				 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
+ *
+ * "argv_func", when not NULL, can be used to fill in arguments only when the
+ * invoked function uses them.  It is called like this:
+ *   new_argcount = argv_func(current_argcount, argv, called_func_argcount)
+ *
+ * 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! */
+    int		(* argv_func)(int, typval_T *, int),
+				/* function to fill in argvars */
+    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 executing and no errors were detected.
+     */
+    if (!evaluate)
+    {
+	// Not evaluating, which means the return value is unknown.  This
+	// matters for giving error messages.
+	rettv->v_type = VAR_UNKNOWN;
+    }
+    else if (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.
+	     */
+	    if (partial != NULL && partial->pt_func != NULL)
+		fp = partial->pt_func;
+	    else
+		fp = find_func(rfname);
+
+	    /* 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);
+	    }
+	    /* 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 && (fp->uf_flags & FC_DELETED))
+		error = ERROR_DELETED;
+	    else if (fp != NULL)
+	    {
+		if (argv_func != NULL)
+		    argcount = argv_func(argcount, argvars, fp->uf_args.ga_len);
+
+		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;
+		    save_redo_T	save_redo;
+
+		    /*
+		     * 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(&save_redo);
+			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 && fp->uf_refcount <= 0)
+			/* Function was unreferenced while being used, free it
+			 * now. */
+			func_clear_free(fp, FALSE);
+		    if (did_save_redo)
+			restoreRedobuff(&save_redo);
+		    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_DELETED:
+		    emsg_funcname(N_("E933: Function was deleted: %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 <SID> 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("<SNR>", HL_ATTR(HLF_8));
+	msg_puts((char *)fp->uf_name + 3);
+    }
+    else
+	msg_puts((char *)fp->uf_name);
+    msg_putchar('(');
+    for (j = 0; j < fp->uf_args.ga_len; ++j)
+    {
+	if (j)
+	    msg_puts(", ");
+	msg_puts((char *)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");
+    if (fp->uf_flags & FC_CLOSURE)
+	msg_puts(" closure");
+    msg_clr_eos();
+    if (p_verbose > 0)
+	last_set_msg(fp->uf_script_ctx);
+}
+
+/*
+ * Get a function name, translating "<SID>" and "<SNR>".
+ * 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
+ * TFN_NO_DEREF:    do not dereference a Funcref
+ * Advances "pp" to just after the function name (if no error).
+ */
+    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 <SNR>: 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 "<SID>" or "<SNR>" 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 | GLV_READ_ONLY,
+					      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)
+		semsg(_(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(partial_name(lv.ll_tv->vval.v_partial));
+	    *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 if (!(flags & TFN_NO_DEREF))
+    {
+	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, "<SNR>", 5) == 0)
+	{
+	    /* Change "<SNR>" 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 <SID>name() inside a script, translate into <SNR>123_name().
+     * Accept <SNR>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 "<SID>" */
+	    if (current_sctx.sc_sid <= 0)
+	    {
+		emsg(_(e_usingsid));
+		goto theend;
+	    }
+	    sprintf((char *)sid_buf, "%ld_", (long)current_sctx.sc_sid);
+	    lead += (int)STRLEN(sid_buf);
+	}
+    }
+    else if (!(flags & TFN_INT) && builtin_function(lv.ll_name, len))
+    {
+	semsg(_("E128: Function name must start with a capital or \"s:\": %s"),
+								       start);
+	goto theend;
+    }
+    if (!skip && !(flags & TFN_QUIET) && !(flags & TFN_NO_DEREF))
+    {
+	char_u *cp = vim_strchr(lv.ll_name, ':');
+
+	if (cp != NULL && cp < end)
+	{
+	    semsg(_("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 "<SID>" */
+		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;
+    char_u	*line_to_free = NULL;
+    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		overwrite = FALSE;
+    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 (message_filtered(fp->uf_name))
+			continue;
+		    if (!func_name_refcount(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(&regmatch, 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, TFN_NO_AUTOLOAD, &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)
+		semsg(_(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("   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)
+	{
+	    semsg(_("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", "abort" and "closure" */
+    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 if (STRNCMP(p, "closure", 7) == 0)
+	{
+	    flags |= FC_CLOSURE;
+	    p += 7;
+	    if (current_funccal == NULL)
+	    {
+		emsg_funcname(N_("E932: Closure function should not be at top level: %s"),
+			name == NULL ? (char_u *)"" : name);
+		goto erret;
+	    }
+	}
+	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
+	{
+	    vim_free(line_to_free);
+	    if (eap->getline == NULL)
+		theline = getcmdline(':', 0L, indent);
+	    else
+		theline = eap->getline(':', eap->cookie, indent);
+	    line_to_free = theline;
+	}
+	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 <<EOF" and "EOF"
+	     * don't check for ":endfunc". */
+	    if (STRCMP(theline, skip_until) == 0)
+		VIM_CLEAR(skip_until);
+	}
+	else
+	{
+	    /* skip ':' and blanks*/
+	    for (p = theline; VIM_ISWHITE(*p) || *p == ':'; ++p)
+		;
+
+	    /* Check for "endfunction". */
+	    if (checkforcmd(&p, "endfunction", 4) && nesting-- == 0)
+	    {
+		char_u *nextcmd = NULL;
+
+		if (*p == '|')
+		    nextcmd = p + 1;
+		else if (line_arg != NULL && *skipwhite(line_arg) != NUL)
+		    nextcmd = line_arg;
+		else if (*p != NUL && *p != '"' && p_verbose > 0)
+		    give_warning2(
+			 (char_u *)_("W22: Text found after :endfunction: %s"),
+			 p, TRUE);
+		if (nextcmd != NULL)
+		{
+		    /* Another command follows. If the line came from "eap" we
+		     * can simply point into it, otherwise we need to change
+		     * "eap->cmdlinep". */
+		    eap->nextcmd = nextcmd;
+		    if (line_to_free != NULL)
+		    {
+			vim_free(*eap->cmdlinep);
+			*eap->cmdlinep = line_to_free;
+			line_to_free = NULL;
+		    }
+		}
+		break;
+	    }
+
+	    /* Increase indent inside "if", "while", "for" and "try", decrease
+	     * at "end". */
+	    if (indent > 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", ":change", ":insert". */
+	    p = skip_range(p, NULL);
+	    if ((p[0] == 'a' && (!ASCII_ISALPHA(p[1]) || p[1] == 'p'))
+		    || (p[0] == 'c'
+			&& (!ASCII_ISALPHA(p[1]) || (p[1] == 'h'
+				&& (!ASCII_ISALPHA(p[2]) || (p[2] == 'a'
+					&& (STRNCMP(&p[3], "nge", 3) != 0
+					    || !ASCII_ISALPHA(p[6])))))))
+		    || (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 <<EOF", ":tcl <<EOF", etc. */
+	    arg = skipwhite(skiptowhite(p));
+	    if (arg[0] == '<' && arg[1] =='<'
+		    && ((p[0] == 'p' && p[1] == 'y'
+				    && (!ASCII_ISALNUM(p[2]) || p[2] == 't'
+					|| ((p[2] == '3' || p[2] == 'x')
+						   && !ASCII_ISALPHA(p[3]))))
+			|| (p[0] == 'p' && p[1] == 'e'
+				    && (!ASCII_ISALPHA(p[2]) || p[2] == 'r'))
+			|| (p[0] == 't' && p[1] == 'c'
+				    && (!ASCII_ISALPHA(p[2]) || p[2] == 'l'))
+			|| (p[0] == 'l' && p[1] == 'u' && p[2] == 'a'
+				    && !ASCII_ISALPHA(p[3]))
+			|| (p[0] == 'r' && p[1] == 'u' && p[2] == 'b'
+				    && (!ASCII_ISALPHA(p[3]) || p[3] == 'y'))
+			|| (p[0] == 'm' && p[1] == 'z'
+				    && (!ASCII_ISALPHA(p[2]) || p[2] == 's'))
+			))
+	    {
+		/* ":python <<" continues until a dot, like ":append" */
+		p = skipwhite(arg + 2);
+		if (*p == NUL)
+		    skip_until = vim_strsave((char_u *)".");
+		else
+		    skip_until = vim_strsave(p);
+	    }
+	}
+
+	/* Add the line to the function. */
+	if (ga_grow(&newlines, 1 + sourcing_lnum_off) == FAIL)
+	    goto erret;
+
+	/* Copy the line to newly allocated memory.  get_one_sourceline()
+	 * allocates 250 bytes per line, this saves 80% on average.  The cost
+	 * is an extra alloc/free. */
+	p = vim_strsave(theline);
+	if (p == NULL)
+	    goto erret;
+	((char_u **)(newlines.ga_data))[newlines.ga_len++] = p;
+
+	/* Add NULL lines for continuation lines, so that the line count is
+	 * equal to the index in the growarray.   */
+	while (sourcing_lnum_off-- > 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)
+	{
+	    // Function can be replaced with "function!" and when sourcing the
+	    // same script again, but only once.
+	    if (!eap->forceit
+			&& (fp->uf_script_ctx.sc_sid != current_sctx.sc_sid
+			    || fp->uf_script_ctx.sc_seq == current_sctx.sc_seq))
+	    {
+		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;
+	    }
+	    if (fp->uf_refcount > 1)
+	    {
+		/* This function is referenced somewhere, don't redefine it but
+		 * create a new one. */
+		--fp->uf_refcount;
+		fp->uf_flags |= FC_REMOVED;
+		fp = NULL;
+		overwrite = TRUE;
+	    }
+	    else
+	    {
+		/* redefine existing function */
+		VIM_CLEAR(name);
+		func_clear_items(fp);
+#ifdef FEAT_PROFILE
+		fp->uf_profiling = FALSE;
+		fp->uf_prof_initialized = FALSE;
+#endif
+	    }
+	}
+    }
+    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)
+	    {
+		semsg(_("E746: Function name does not match script file name: %s"), name);
+		goto erret;
+	    }
+	}
+
+	fp = (ufunc_T *)alloc_clear((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.vval.v_string = vim_strsave(name);
+
+	    /* behave like "dict" was used */
+	    flags |= FC_DICT;
+	}
+
+	/* insert the new function in the function list */
+	STRCPY(fp->uf_name, name);
+	if (overwrite)
+	{
+	    hi = hash_find(&func_hashtab, name);
+	    hi->hi_key = UF2HIKEY(fp);
+	}
+	else if (hash_add(&func_hashtab, UF2HIKEY(fp)) == FAIL)
+	{
+	    vim_free(fp);
+	    goto erret;
+	}
+	fp->uf_refcount = 1;
+    }
+    fp->uf_args = newargs;
+    fp->uf_lines = newlines;
+    if ((flags & FC_CLOSURE) != 0)
+    {
+	if (register_closure(fp) == FAIL)
+	    goto erret;
+    }
+    else
+	fp->uf_scoped = NULL;
+
+#ifdef FEAT_PROFILE
+    if (prof_def_func())
+	func_do_profile(fp);
+#endif
+    fp->uf_varargs = varargs;
+    if (sandbox)
+	flags |= FC_SANDBOX;
+    fp->uf_flags = flags;
+    fp->uf_calls = 0;
+    fp->uf_script_ctx = current_sctx;
+    fp->uf_script_ctx.sc_lnum += sourcing_lnum - newlines.ga_len - 1;
+    goto ret_free;
+
+erret:
+    ga_clear_strings(&newargs);
+errret_2:
+    ga_clear_strings(&newlines);
+ret_free:
+    vim_free(skip_until);
+    vim_free(line_to_free);
+    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 "<SID>" or "<SNR>" (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.
+ * If "no_defef" is TRUE, do not dereference a Funcref.
+ */
+    int
+function_exists(char_u *name, int no_deref)
+{
+    char_u  *nm = name;
+    char_u  *p;
+    int	    n = FALSE;
+    int	    flag;
+
+    flag = TFN_INT | TFN_QUIET | TFN_NO_AUTOLOAD;
+    if (no_deref)
+	flag |= TFN_NO_DEREF;
+    p = trans_function_name(&nm, FALSE, flag, 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;
+}
+
+#if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3) || defined(PROTO)
+    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;
+}
+#endif
+
+#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 (!fp->uf_prof_initialized)
+    {
+	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_prof_initialized = TRUE;
+    }
+
+    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;
+    char_u	*p;
+
+    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_prof_initialized)
+	    {
+		if (sorttab != NULL)
+		    sorttab[st_len++] = fp;
+
+		if (fp->uf_name[0] == K_SPECIAL)
+		    fprintf(fd, "FUNCTION  <SNR>%s()\n", fp->uf_name + 3);
+		else
+		    fprintf(fd, "FUNCTION  %s()\n", fp->uf_name);
+		p = home_replace_save(NULL,
+				     get_scriptname(fp->uf_script_ctx.sc_sid));
+		if (p != NULL)
+		{
+		    fprintf(fd, "    Defined: %s line %ld\n",
+					   p, (long)fp->uf_script_ctx.sc_lnum);
+		    vim_free(p);
+		}
+		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, " <SNR>%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)
+				|| STRNCMP(fp->uf_name, "<lambda>", 8) == 0)
+	    return (char_u *)""; /* don't show dict and lambda 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)
+	{
+	    if (!eap->forceit)
+		semsg(_(e_nofunc), eap->arg);
+	    return;
+	}
+	if (fp->uf_calls > 0)
+	{
+	    semsg(_("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
+	{
+	    /* A normal function (not a numbered function or lambda) has a
+	     * refcount of 1 for the entry in the hashtable.  When deleting
+	     * it and the refcount is more than one, it should be kept.
+	     * A numbered function and lambda should be kept if the refcount is
+	     * one or more. */
+	    if (fp->uf_refcount > (func_name_refcount(fp->uf_name) ? 0 : 1))
+	    {
+		/* Function is still referenced somewhere.  Don't free it but
+		 * do remove it from the hashtable. */
+		if (func_remove(fp))
+		    fp->uf_refcount--;
+		fp->uf_flags |= FC_DELETED;
+	    }
+	    else
+		func_clear_free(fp, FALSE);
+	}
+    }
+}
+
+/*
+ * Unreference a Function: decrement the reference count and free it when it
+ * becomes zero.
+ */
+    void
+func_unref(char_u *name)
+{
+    ufunc_T *fp = NULL;
+
+    if (name == NULL || !func_name_refcount(name))
+	return;
+    fp = find_func(name);
+    if (fp == NULL && isdigit(*name))
+    {
+#ifdef EXITFREE
+	if (!entered_free_all_mem)
+#endif
+	    internal_error("func_unref()");
+    }
+    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_clear_free(fp, FALSE);
+    }
+}
+
+/*
+ * Unreference a Function: decrement the reference count and free it when it
+ * becomes zero.
+ */
+    void
+func_ptr_unref(ufunc_T *fp)
+{
+    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_clear_free(fp, FALSE);
+    }
+}
+
+/*
+ * Count a reference to a Function.
+ */
+    void
+func_ref(char_u *name)
+{
+    ufunc_T *fp;
+
+    if (name == NULL || !func_name_refcount(name))
+	return;
+    fp = find_func(name);
+    if (fp != NULL)
+	++fp->uf_refcount;
+    else if (isdigit(*name))
+	/* Only give an error for a numbered function.
+	 * Fail silently, when named or lambda function isn't found. */
+	internal_error("func_ref()");
+}
+
+/*
+ * Count a reference to a Function.
+ */
+    void
+func_ptr_ref(ufunc_T *fp)
+{
+    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
+	    && fc->fc_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)
+    {
+	/* In return statement, cause_abort should be force_abort. */
+	update_force_abort();
+
+	/*
+	 * 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. */
+	semsg(_(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 != '(')
+    {
+	semsg(_("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)
+	{
+	    if (lnum > curbuf->b_ml.ml_line_count)
+	    {
+		// If the function deleted lines or switched to another buffer
+		// the line number may become invalid.
+		emsg(_(e_invrange));
+		break;
+	    }
+	    curwin->w_cursor.lnum = lnum;
+	    curwin->w_cursor.col = 0;
+	    curwin->w_cursor.coladd = 0;
+	}
+	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;
+	}
+	if (has_watchexpr())
+	    dbg_check_breakpoint(eap);
+
+	/* 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;
+    char_u	*tofree = NULL;
+    ufunc_T	*fp;
+    char_u	fname_buf[FLEN_FIXED + 1];
+    int		error;
+    dict_T	*selfdict = selfdict_in;
+
+    if (rettv->v_type == VAR_PARTIAL && rettv->vval.v_partial->pt_func != NULL)
+	fp = rettv->vval.v_partial->pt_func;
+    else
+    {
+	fname = rettv->v_type == VAR_FUNC ? rettv->vval.v_string
+					      : rettv->vval.v_partial->pt_name;
+	/* 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. */
+		if (ret_pt->pt_name != NULL)
+		{
+		    pt->pt_name = vim_strsave(ret_pt->pt_name);
+		    func_ref(pt->pt_name);
+		}
+		else
+		{
+		    pt->pt_func = ret_pt->pt_func;
+		    func_ptr_ref(pt->pt_func);
+		}
+		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;
+}
+
+    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 backtrace 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 &get_funccal()->l_avars_var;
+}
+
+/*
+ * List function variables, if there is a function.
+ */
+    void
+list_func_vars(int *first)
+{
+    if (current_funccal != NULL)
+	list_hashtable_vars(&current_funccal->l_vars.dv_hashtab,
+							   "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 == &current_funccal->l_vars.dv_hashtab)
+	return &current_funccal->l_vars;
+    return NULL;
+}
+
+/*
+ * Search hashitem in parent scope.
+ */
+    hashitem_T *
+find_hi_in_scoped_ht(char_u *name, hashtab_T **pht)
+{
+    funccall_T	*old_current_funccal = current_funccal;
+    hashtab_T	*ht;
+    hashitem_T	*hi = NULL;
+    char_u	*varname;
+
+    if (current_funccal == NULL || current_funccal->func->uf_scoped == NULL)
+      return NULL;
+
+    /* Search in parent scope which is possible to reference from lambda */
+    current_funccal = current_funccal->func->uf_scoped;
+    while (current_funccal != NULL)
+    {
+	ht = find_var_ht(name, &varname);
+	if (ht != NULL && *varname != NUL)
+	{
+	    hi = hash_find(ht, varname);
+	    if (!HASHITEM_EMPTY(hi))
+	    {
+		*pht = ht;
+		break;
+	    }
+	}
+	if (current_funccal == current_funccal->func->uf_scoped)
+	    break;
+	current_funccal = current_funccal->func->uf_scoped;
+    }
+    current_funccal = old_current_funccal;
+
+    return hi;
+}
+
+/*
+ * Search variable in parent scope.
+ */
+    dictitem_T *
+find_var_in_scoped_ht(char_u *name, int no_autoload)
+{
+    dictitem_T	*v = NULL;
+    funccall_T	*old_current_funccal = current_funccal;
+    hashtab_T	*ht;
+    char_u	*varname;
+
+    if (current_funccal == NULL || current_funccal->func->uf_scoped == NULL)
+	return NULL;
+
+    /* Search in parent scope which is possible to reference from lambda */
+    current_funccal = current_funccal->func->uf_scoped;
+    while (current_funccal)
+    {
+	ht = find_var_ht(name, &varname);
+	if (ht != NULL && *varname != NUL)
+	{
+	    v = find_var_in_ht(ht, *name, varname, no_autoload);
+	    if (v != NULL)
+		break;
+	}
+	if (current_funccal == current_funccal->func->uf_scoped)
+	    break;
+	current_funccal = current_funccal->func->uf_scoped;
+    }
+    current_funccal = old_current_funccal;
+
+    return v;
+}
+
+/*
+ * 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)
+    {
+	fc->fc_copyID = copyID + 1;
+	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;
+}
+
+    static int
+set_ref_in_funccal(funccall_T *fc, int copyID)
+{
+    int abort = FALSE;
+
+    if (fc->fc_copyID != copyID)
+    {
+	fc->fc_copyID = copyID;
+	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_func(NULL, fc->func, copyID);
+    }
+    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_funccal(fc, copyID);
+    return abort;
+}
+
+/*
+ * Set "copyID" in all functions available by name.
+ */
+    int
+set_ref_in_functions(int copyID)
+{
+    int		todo;
+    hashitem_T	*hi = NULL;
+    int		abort = FALSE;
+    ufunc_T	*fp;
+
+    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 (!func_name_refcount(fp->uf_name))
+		abort = abort || set_ref_in_func(NULL, fp, copyID);
+	}
+    }
+    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;
+}
+
+/*
+ * Mark all lists and dicts referenced through function "name" with "copyID".
+ * Returns TRUE if setting references failed somehow.
+ */
+    int
+set_ref_in_func(char_u *name, ufunc_T *fp_in, int copyID)
+{
+    ufunc_T	*fp = fp_in;
+    funccall_T	*fc;
+    int		error = ERROR_NONE;
+    char_u	fname_buf[FLEN_FIXED + 1];
+    char_u	*tofree = NULL;
+    char_u	*fname;
+    int		abort = FALSE;
+
+    if (name == NULL && fp_in == NULL)
+	return FALSE;
+
+    if (fp_in == NULL)
+    {
+	fname = fname_trans_sid(name, fname_buf, &tofree, &error);
+	fp = find_func(fname);
+    }
+    if (fp != NULL)
+    {
+	for (fc = fp->uf_scoped; fc != NULL; fc = fc->func->uf_scoped)
+	    abort = abort || set_ref_in_funccal(fc, copyID);
+    }
+    vim_free(tofree);
+    return abort;
+}
+
+#endif /* FEAT_EVAL */