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https://github.com/vim/vim
synced 2025-03-15 22:37:52 +01:00
Problem: using global variable for get_insert()/get_lambda_name() (after v9.1.1151) Solution: let the functions return a string_T object instead (Yee Cheng Chin) In #16720, `get_insert()` was modified to store a string length in a global variable to be queried immediately by another `get_insert_len()` function, which is somewhat fragile. Instead, just have the function itself return a `string_T` object instead. Also do the same for `get_lambda_name()` which has similar issues. closes: #16775 Signed-off-by: Yee Cheng Chin <ychin.git@gmail.com> Signed-off-by: Christian Brabandt <cb@256bit.org>
7406 lines
180 KiB
C
7406 lines
180 KiB
C
/* vi:set ts=8 sts=4 sw=4 noet:
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*
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* VIM - Vi IMproved by Bram Moolenaar
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*
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* Do ":help uganda" in Vim to read copying and usage conditions.
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* Do ":help credits" in Vim to see a list of people who contributed.
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* See README.txt for an overview of the Vim source code.
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*/
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/*
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* userfunc.c: User defined function support
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*/
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#include "vim.h"
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#if defined(FEAT_EVAL) || defined(PROTO)
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/*
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* All user-defined functions are found in this hashtable.
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*/
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static hashtab_T func_hashtab;
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// Used by get_func_tv()
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static garray_T funcargs = GA_EMPTY;
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// pointer to funccal for currently active function
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static funccall_T *current_funccal = NULL;
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// Pointer to list of previously used funccal, still around because some
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// item in it is still being used.
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static funccall_T *previous_funccal = NULL;
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static void funccal_unref(funccall_T *fc, ufunc_T *fp, int force);
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static void func_clear(ufunc_T *fp, int force);
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static int func_free(ufunc_T *fp, int force);
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static char_u *untrans_function_name(char_u *name);
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static void handle_defer_one(funccall_T *funccal);
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static char_u *trans_function_name_ext(char_u **pp, int *is_global, int skip, int flags, funcdict_T *fdp, partial_T **partial, type_T **type, ufunc_T **ufunc);
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void
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func_init(void)
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{
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hash_init(&func_hashtab);
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}
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/*
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* Return the function hash table
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*/
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hashtab_T *
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func_tbl_get(void)
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{
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return &func_hashtab;
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}
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/*
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* Get one function argument.
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* If "argtypes" is not NULL also get the type: "arg: type" (:def function).
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* If "types_optional" is TRUE a missing type is OK, use "any".
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* If "evalarg" is not NULL use it to check for an already declared name.
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* If "eap" is not NULL use it to check for an already declared name.
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* Return a pointer to after the type.
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* When something is wrong return "arg".
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*/
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static char_u *
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one_function_arg(
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char_u *arg,
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garray_T *newargs,
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garray_T *argtypes,
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int types_optional,
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garray_T *arg_objm,
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evalarg_T *evalarg,
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exarg_T *eap,
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int is_vararg,
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int skip)
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{
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char_u *p = arg;
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char_u *arg_copy = NULL;
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int is_underscore = FALSE;
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while (ASCII_ISALNUM(*p) || *p == '_')
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++p;
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if (arg == p || SAFE_isdigit(*arg)
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|| (argtypes == NULL
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&& ((p - arg == 9 && STRNCMP(arg, "firstline", 9) == 0)
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|| (p - arg == 8 && STRNCMP(arg, "lastline", 8) == 0))))
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{
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if (!skip)
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semsg(_(e_illegal_argument_str), arg);
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return arg;
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}
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// Extra checks in Vim9 script.
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if (!skip && argtypes != NULL)
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{
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int c = *p;
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*p = NUL;
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int r = check_reserved_name(arg, FALSE);
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*p = c;
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if (r == FAIL)
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return arg;
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// Cannot use script var name for argument. In function: also check
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// local vars and arguments.
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if (check_defined(arg, p - arg,
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evalarg == NULL ? NULL : evalarg->eval_cctx,
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eap == NULL ? NULL : eap->cstack, TRUE) == FAIL)
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return arg;
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}
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if (newargs != NULL && ga_grow(newargs, 1) == FAIL)
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return arg;
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if (newargs != NULL)
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{
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int c;
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int i;
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c = *p;
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*p = NUL;
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arg_copy = vim_strsave(arg);
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if (arg_copy == NULL)
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{
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*p = c;
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return arg;
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}
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is_underscore = arg_copy[0] == '_' && arg_copy[1] == NUL;
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if (argtypes == NULL || !is_underscore)
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// Check for duplicate argument name.
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for (i = 0; i < newargs->ga_len; ++i)
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if (STRCMP(((char_u **)(newargs->ga_data))[i], arg_copy) == 0)
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{
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semsg(_(e_duplicate_argument_name_str), arg_copy);
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vim_free(arg_copy);
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return arg;
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}
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((char_u **)(newargs->ga_data))[newargs->ga_len] = arg_copy;
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newargs->ga_len++;
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*p = c;
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}
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// get any type from "arg: type"
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if (argtypes != NULL && (skip || ga_grow(argtypes, 1) == OK)
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&& arg_objm != NULL && (skip || ga_grow(arg_objm, 1) == OK))
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{
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char_u *type = NULL;
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if (VIM_ISWHITE(*p) && *skipwhite(p) == ':')
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{
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semsg(_(e_no_white_space_allowed_before_colon_str),
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arg_copy == NULL ? arg : arg_copy);
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p = skipwhite(p);
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}
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if (*p == ':')
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{
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++p;
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if (!skip && !VIM_ISWHITE(*p))
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{
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semsg(_(e_white_space_required_after_str_str), ":", p - 1);
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return arg;
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}
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type = skipwhite(p);
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p = skip_type(type, TRUE);
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if (!skip)
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type = vim_strnsave(type, p - type);
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}
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else if (*skipwhite(p) != '=' && !types_optional && !is_underscore)
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{
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semsg(_(e_missing_argument_type_for_str),
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arg_copy == NULL ? arg : arg_copy);
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return arg;
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}
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if (!skip)
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{
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if (type == NULL && types_optional)
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{
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// lambda arguments default to "any" type
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if (is_vararg)
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type = vim_strnsave((char_u *)"list<any>", 9);
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else
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type = vim_strnsave((char_u *)"any", 3);
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}
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((char_u **)argtypes->ga_data)[argtypes->ga_len++] = type;
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((int8_T *)arg_objm->ga_data)[arg_objm->ga_len++] = FALSE;
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}
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}
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return p;
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}
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/*
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* Handle line continuation in function arguments or body.
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* Get a next line, store it in "eap" if appropriate and put the line in
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* "lines_to_free" to free the line later.
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*/
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static char_u *
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get_function_line(
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exarg_T *eap,
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garray_T *lines_to_free,
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int indent,
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getline_opt_T getline_options)
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{
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char_u *theline;
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if (eap->ea_getline == NULL)
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theline = getcmdline(':', 0L, indent, 0);
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else
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theline = eap->ea_getline(':', eap->cookie, indent, getline_options);
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if (theline != NULL)
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{
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if (lines_to_free->ga_len > 0
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&& eap->cmdlinep != NULL
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&& *eap->cmdlinep == ((char_u **)lines_to_free->ga_data)
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[lines_to_free->ga_len - 1])
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*eap->cmdlinep = theline;
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(void)ga_add_string(lines_to_free, theline);
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}
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return theline;
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}
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/*
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* Get function arguments.
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* "argp" should point to just after the "(", possibly to white space.
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* "argp" is advanced just after "endchar".
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*/
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static int
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get_function_args(
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char_u **argp,
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char_u endchar,
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garray_T *newargs,
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garray_T *argtypes, // NULL unless using :def
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int types_optional, // types optional if "argtypes" is not NULL
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garray_T *arg_objm, // NULL unless using :def
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evalarg_T *evalarg, // context or NULL
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int *varargs,
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garray_T *default_args,
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int skip,
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exarg_T *eap, // can be NULL
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int in_class, // non-zero when inside a class or interface
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garray_T *newlines, // function body lines
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garray_T *lines_to_free)
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{
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int mustend = FALSE;
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char_u *arg;
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char_u *p;
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int c;
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int any_default = FALSE;
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char_u *whitep = *argp;
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int need_expr = FALSE;
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if (newargs != NULL)
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ga_init2(newargs, sizeof(char_u *), 3);
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if (argtypes != NULL)
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ga_init2(argtypes, sizeof(char_u *), 3);
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if (arg_objm != NULL)
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ga_init2(arg_objm, sizeof(int8_T), 3);
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if (!skip && default_args != NULL)
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ga_init2(default_args, sizeof(char_u *), 3);
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if (varargs != NULL)
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*varargs = FALSE;
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/*
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* Isolate the arguments: "arg1, arg2, ...)"
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*/
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arg = skipwhite(*argp);
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p = arg;
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while (*p != endchar)
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{
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while (eap != NULL && eap->ea_getline != NULL
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&& (*p == NUL || (VIM_ISWHITE(*whitep) && *p == '#')))
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{
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// End of the line, get the next one.
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char_u *theline = get_function_line(eap, lines_to_free, 0,
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GETLINE_CONCAT_CONT);
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if (theline == NULL)
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break;
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whitep = (char_u *)" ";
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p = skipwhite(theline);
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}
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if (mustend && *p != endchar)
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{
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if (!skip)
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semsg(_(e_invalid_argument_str), *argp);
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goto err_ret;
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}
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if (*p == endchar && !need_expr)
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break;
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if (p[0] == '.' && p[1] == '.' && p[2] == '.')
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{
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if (varargs != NULL)
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*varargs = TRUE;
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p += 3;
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mustend = TRUE;
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if (argtypes != NULL)
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{
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// ...name: list<type>
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if (!eval_isnamec1(*p))
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{
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if (!skip)
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emsg(_(e_missing_name_after_dots));
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goto err_ret;
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}
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arg = p;
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p = one_function_arg(p, newargs, argtypes, types_optional,
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arg_objm, evalarg, eap, TRUE, skip);
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if (p == arg)
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break;
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if (*skipwhite(p) == '=')
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{
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emsg(_(e_cannot_use_default_for_variable_arguments));
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break;
|
|
}
|
|
}
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|
}
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else if (in_class && STRNCMP(p, "this.", 5) == 0)
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{
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// this.memberName
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p += 5;
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arg = p;
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|
while (ASCII_ISALNUM(*p) || *p == '_')
|
|
++p;
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char_u *argend = p;
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|
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// object variable this. can be used only in a constructor
|
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if (STRNCMP(eap->arg, "new", 3) != 0)
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{
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c = *argend;
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*argend = NUL;
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semsg(_(e_cannot_use_an_object_variable_except_with_the_new_method_str), arg);
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*argend = c;
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break;
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}
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|
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if (*skipwhite(p) == '=')
|
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{
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|
char_u *defval = skipwhite(skipwhite(p) + 1);
|
|
if (STRNCMP(defval, "v:none", 6) != 0)
|
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{
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|
semsg(_(e_constructor_default_value_must_be_vnone_str), p);
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|
goto err_ret;
|
|
}
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|
any_default = TRUE;
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p = defval + 6;
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|
|
|
if (ga_grow(default_args, 1) == FAIL)
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|
goto err_ret;
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|
|
|
char_u *expr = vim_strnsave((char_u *)"v:none", 6);
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|
if (expr == NULL)
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|
goto err_ret;
|
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((char_u **)(default_args->ga_data))
|
|
[default_args->ga_len] = expr;
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|
default_args->ga_len++;
|
|
}
|
|
else if (any_default)
|
|
{
|
|
emsg(_(e_non_default_argument_follows_default_argument));
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|
goto err_ret;
|
|
}
|
|
|
|
// TODO: check the argument is indeed a member
|
|
if (newargs != NULL && ga_grow(newargs, 1) == FAIL)
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|
return FAIL;
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|
if (newargs != NULL)
|
|
{
|
|
((char_u **)(newargs->ga_data))[newargs->ga_len] =
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|
vim_strnsave(arg, argend - arg);
|
|
newargs->ga_len++;
|
|
|
|
if (argtypes != NULL && ga_grow(argtypes, 1) == OK
|
|
&& arg_objm != NULL && ga_grow(arg_objm, 1) == OK)
|
|
{
|
|
// TODO: use the actual type
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|
((char_u **)argtypes->ga_data)[argtypes->ga_len++] =
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vim_strnsave((char_u *)"any", 3);
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|
((int8_T *)arg_objm->ga_data)[arg_objm->ga_len++] = TRUE;
|
|
|
|
// Add a line to the function body for the assignment.
|
|
if (ga_grow(newlines, 1) == OK)
|
|
{
|
|
// "this.name = name"
|
|
int len = 5 + (argend - arg) + 3 + (argend - arg) + 1;
|
|
if (any_default)
|
|
len += 14 + 10;
|
|
char_u *assignment = alloc(len);
|
|
if (assignment != NULL)
|
|
{
|
|
c = *argend;
|
|
*argend = NUL;
|
|
if (any_default)
|
|
vim_snprintf((char *)assignment, len,
|
|
"ifargisset %d this.%s = %s",
|
|
default_args->ga_len - 1, arg, arg);
|
|
else
|
|
vim_snprintf((char *)assignment, len,
|
|
"this.%s = %s", arg, arg);
|
|
*argend = c;
|
|
((char_u **)(newlines->ga_data))[
|
|
newlines->ga_len++] = assignment;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (*p == ',')
|
|
++p;
|
|
}
|
|
else
|
|
{
|
|
char_u *np;
|
|
|
|
arg = p;
|
|
p = one_function_arg(p, newargs, argtypes, types_optional,
|
|
arg_objm, evalarg, eap, FALSE, skip);
|
|
if (p == arg)
|
|
break;
|
|
|
|
// Recognize " = expr" but not " == expr". A lambda can have
|
|
// "(a = expr" but "(a == expr" and "(a =~ expr" are not a lambda.
|
|
np = skipwhite(p);
|
|
if (*np == '=' && np[1] != '=' && np[1] != '~'
|
|
&& default_args != NULL)
|
|
{
|
|
typval_T rettv;
|
|
|
|
// find the end of the expression (doesn't evaluate it)
|
|
any_default = TRUE;
|
|
p = skipwhite(np + 1);
|
|
char_u *expr = p;
|
|
if (eval1(&p, &rettv, NULL) != FAIL)
|
|
{
|
|
if (!skip)
|
|
{
|
|
if (ga_grow(default_args, 1) == FAIL)
|
|
goto err_ret;
|
|
|
|
if (need_expr)
|
|
need_expr = FALSE;
|
|
// trim trailing whitespace
|
|
while (p > expr && VIM_ISWHITE(p[-1]))
|
|
p--;
|
|
c = *p;
|
|
*p = NUL;
|
|
expr = vim_strsave(expr);
|
|
if (expr == NULL)
|
|
{
|
|
*p = c;
|
|
goto err_ret;
|
|
}
|
|
((char_u **)(default_args->ga_data))
|
|
[default_args->ga_len] = expr;
|
|
default_args->ga_len++;
|
|
*p = c;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
mustend = TRUE;
|
|
if (*skipwhite(p) == NUL)
|
|
need_expr = TRUE;
|
|
}
|
|
}
|
|
else if (any_default)
|
|
{
|
|
emsg(_(e_non_default_argument_follows_default_argument));
|
|
goto err_ret;
|
|
}
|
|
|
|
if (VIM_ISWHITE(*p) && *skipwhite(p) == ',')
|
|
{
|
|
// Be tolerant when skipping
|
|
if (!skip)
|
|
{
|
|
semsg(_(e_no_white_space_allowed_before_str_str), ",", p);
|
|
goto err_ret;
|
|
}
|
|
p = skipwhite(p);
|
|
}
|
|
if (*p == ',')
|
|
{
|
|
++p;
|
|
// Don't give this error when skipping, it makes the "->" not
|
|
// found in "{k,v -> x}" and give a confusing error.
|
|
// Allow missing space after comma in legacy functions.
|
|
if (!skip && argtypes != NULL
|
|
&& !IS_WHITE_OR_NUL(*p) && *p != endchar)
|
|
{
|
|
semsg(_(e_white_space_required_after_str_str), ",", p - 1);
|
|
goto err_ret;
|
|
}
|
|
}
|
|
else
|
|
mustend = TRUE;
|
|
}
|
|
whitep = p;
|
|
p = skipwhite(p);
|
|
}
|
|
|
|
if (*p != endchar)
|
|
goto err_ret;
|
|
++p; // skip "endchar"
|
|
|
|
*argp = p;
|
|
return OK;
|
|
|
|
err_ret:
|
|
if (newargs != NULL)
|
|
ga_clear_strings(newargs);
|
|
if (!skip && default_args != NULL)
|
|
ga_clear_strings(default_args);
|
|
return FAIL;
|
|
}
|
|
|
|
/*
|
|
* Parse the argument types, filling "fp->uf_arg_types".
|
|
* Return OK or FAIL.
|
|
*/
|
|
static int
|
|
parse_argument_types(
|
|
ufunc_T *fp,
|
|
garray_T *argtypes,
|
|
int varargs,
|
|
garray_T *arg_objm,
|
|
ocmember_T *obj_members,
|
|
int obj_member_count)
|
|
{
|
|
int len = 0;
|
|
|
|
ga_init2(&fp->uf_type_list, sizeof(type_T *), 10);
|
|
if (argtypes->ga_len > 0)
|
|
{
|
|
// When "varargs" is set the last name/type goes into uf_va_name
|
|
// and uf_va_type.
|
|
len = argtypes->ga_len - (varargs ? 1 : 0);
|
|
|
|
if (len > 0)
|
|
fp->uf_arg_types = ALLOC_CLEAR_MULT(type_T *, len);
|
|
if (fp->uf_arg_types != NULL)
|
|
{
|
|
int i;
|
|
type_T *type;
|
|
|
|
for (i = 0; i < len; ++ i)
|
|
{
|
|
char_u *p = ((char_u **)argtypes->ga_data)[i];
|
|
|
|
if (p == NULL)
|
|
// will get the type from the default value
|
|
type = &t_unknown;
|
|
else
|
|
{
|
|
if (arg_objm != NULL && ((int8_T *)arg_objm->ga_data)[i])
|
|
{
|
|
char_u *aname = ((char_u **)fp->uf_args.ga_data)[i];
|
|
|
|
type = &t_any;
|
|
for (int om = 0; om < obj_member_count; ++om)
|
|
{
|
|
if (obj_members != NULL
|
|
&& STRCMP(aname,
|
|
obj_members[om].ocm_name) == 0)
|
|
{
|
|
type = obj_members[om].ocm_type;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
type = parse_type(&p, &fp->uf_type_list, TRUE);
|
|
}
|
|
if (type == NULL)
|
|
return FAIL;
|
|
fp->uf_arg_types[i] = type;
|
|
if (i < fp->uf_args.ga_len
|
|
&& (type->tt_type == VAR_FUNC
|
|
|| type->tt_type == VAR_PARTIAL))
|
|
{
|
|
char_u *name = ((char_u **)fp->uf_args.ga_data)[i];
|
|
if (obj_members != NULL && *name == '_')
|
|
// protected object method
|
|
name++;
|
|
|
|
if (var_wrong_func_name(name, TRUE))
|
|
return FAIL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (varargs)
|
|
{
|
|
char_u *p;
|
|
|
|
// Move the last argument "...name: type" to uf_va_name and
|
|
// uf_va_type.
|
|
--fp->uf_args.ga_len;
|
|
fp->uf_va_name = ((char_u **)fp->uf_args.ga_data)[fp->uf_args.ga_len];
|
|
((char_u **)fp->uf_args.ga_data)[fp->uf_args.ga_len] = NULL;
|
|
p = ((char_u **)argtypes->ga_data)[len];
|
|
if (p == NULL)
|
|
// TODO: get type from default value
|
|
fp->uf_va_type = &t_list_any;
|
|
else
|
|
{
|
|
fp->uf_va_type = parse_type(&p, &fp->uf_type_list, TRUE);
|
|
if (fp->uf_va_type != NULL && fp->uf_va_type->tt_type != VAR_LIST)
|
|
{
|
|
semsg(_(e_variable_arguments_type_must_be_list_str),
|
|
((char_u **)argtypes->ga_data)[len]);
|
|
return FAIL;
|
|
}
|
|
}
|
|
if (fp->uf_va_type == NULL)
|
|
return FAIL;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int
|
|
parse_return_type(ufunc_T *fp, char_u *ret_type)
|
|
{
|
|
if (ret_type == NULL)
|
|
fp->uf_ret_type = &t_void;
|
|
else
|
|
{
|
|
char_u *p = ret_type;
|
|
|
|
fp->uf_ret_type = parse_type(&p, &fp->uf_type_list, TRUE);
|
|
if (fp->uf_ret_type == NULL)
|
|
{
|
|
fp->uf_ret_type = &t_void;
|
|
return FAIL;
|
|
}
|
|
}
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
* 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(¤t_funccal->fc_ufuncs, 1) == FAIL)
|
|
return FAIL;
|
|
((ufunc_T **)current_funccal->fc_ufuncs.ga_data)
|
|
[current_funccal->fc_ufuncs.ga_len++] = fp;
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
* If "name" starts with K_SPECIAL and "buf[bufsize]" is big enough
|
|
* return "buf" filled with a readable function name.
|
|
* Otherwise just return "name", thus the return value can always be used.
|
|
* "name" and "buf" may be equal.
|
|
*/
|
|
char_u *
|
|
make_ufunc_name_readable(char_u *name, char_u *buf, size_t bufsize)
|
|
{
|
|
size_t len;
|
|
|
|
if (name[0] != K_SPECIAL)
|
|
return name;
|
|
len = STRLEN(name);
|
|
if (len + 3 > bufsize)
|
|
return name;
|
|
|
|
mch_memmove(buf + 5, name + 3, len - 2); // Include trailing NUL
|
|
mch_memmove(buf, "<SNR>", 5);
|
|
return buf;
|
|
}
|
|
|
|
static char_u lambda_name[8 + NUMBUFLEN];
|
|
|
|
/*
|
|
* Get a name for a lambda. Returned in static memory.
|
|
*/
|
|
string_T
|
|
get_lambda_name(void)
|
|
{
|
|
static int lambda_no = 0;
|
|
int n;
|
|
string_T ret;
|
|
|
|
n = vim_snprintf((char *)lambda_name, sizeof(lambda_name), "<lambda>%d", ++lambda_no);
|
|
if (n < 1)
|
|
ret.length = 0;
|
|
else
|
|
if (n >= (int)sizeof(lambda_name))
|
|
ret.length = sizeof(lambda_name) - 1;
|
|
else
|
|
ret.length = (size_t)n;
|
|
|
|
ret.string = lambda_name;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Allocate a "ufunc_T" for a function called "name".
|
|
* Makes sure the size is right.
|
|
*/
|
|
static ufunc_T *
|
|
alloc_ufunc(char_u *name, size_t namelen)
|
|
{
|
|
size_t len;
|
|
ufunc_T *fp;
|
|
|
|
// When the name is short we need to make sure we allocate enough bytes for
|
|
// the whole struct, including any padding.
|
|
len = offsetof(ufunc_T, uf_name) + namelen + 1;
|
|
fp = alloc_clear(len < sizeof(ufunc_T) ? sizeof(ufunc_T) : len);
|
|
if (fp != NULL)
|
|
{
|
|
// Add a type cast to avoid a warning for an overflow, the uf_name[] array
|
|
// can actually extend beyond the struct.
|
|
STRCPY((void *)fp->uf_name, name);
|
|
fp->uf_namelen = namelen;
|
|
|
|
if (name[0] == K_SPECIAL)
|
|
{
|
|
len = namelen + 3; // including +1 for NUL
|
|
fp->uf_name_exp = alloc(len);
|
|
if (fp->uf_name_exp != NULL)
|
|
vim_snprintf((char *)fp->uf_name_exp, len, "<SNR>%s", fp->uf_name + 3);
|
|
}
|
|
}
|
|
|
|
return fp;
|
|
}
|
|
|
|
#if defined(FEAT_LUA) || defined(PROTO)
|
|
/*
|
|
* Registers a native C callback which can be called from Vim script.
|
|
* Returns the name of the Vim script function.
|
|
*/
|
|
char_u *
|
|
register_cfunc(cfunc_T cb, cfunc_free_T cb_free, void *state)
|
|
{
|
|
string_T name = get_lambda_name();
|
|
ufunc_T *fp;
|
|
|
|
fp = alloc_ufunc(name.string, name.length);
|
|
if (fp == NULL)
|
|
return NULL;
|
|
|
|
fp->uf_def_status = UF_NOT_COMPILED;
|
|
fp->uf_refcount = 1;
|
|
fp->uf_varargs = TRUE;
|
|
fp->uf_flags = FC_CFUNC | FC_LAMBDA;
|
|
fp->uf_calls = 0;
|
|
fp->uf_script_ctx = current_sctx;
|
|
fp->uf_cb = cb;
|
|
fp->uf_cb_free = cb_free;
|
|
fp->uf_cb_state = state;
|
|
|
|
hash_add(&func_hashtab, UF2HIKEY(fp), "add C function");
|
|
|
|
return name.string;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Skip over "->" or "=>" after the arguments of a lambda.
|
|
* If ": type" is found make "ret_type" point to "type".
|
|
* If "white_error" is not NULL check for correct use of white space and set
|
|
* "white_error" to TRUE if there is an error.
|
|
* Return NULL if no valid arrow found.
|
|
*/
|
|
static char_u *
|
|
skip_arrow(
|
|
char_u *start,
|
|
int equal_arrow,
|
|
char_u **ret_type,
|
|
int *white_error)
|
|
{
|
|
char_u *s = start;
|
|
char_u *bef = start - 2; // "start" points to > of ->
|
|
|
|
if (equal_arrow)
|
|
{
|
|
if (*s == ':')
|
|
{
|
|
if (white_error != NULL && !VIM_ISWHITE(s[1]))
|
|
{
|
|
*white_error = TRUE;
|
|
semsg(_(e_white_space_required_after_str_str), ":", s);
|
|
return NULL;
|
|
}
|
|
s = skipwhite(s + 1);
|
|
*ret_type = s;
|
|
s = skip_type(s, TRUE);
|
|
if (s == *ret_type)
|
|
{
|
|
emsg(_(e_missing_return_type));
|
|
return NULL;
|
|
}
|
|
}
|
|
bef = s;
|
|
s = skipwhite(s);
|
|
if (*s != '=')
|
|
return NULL;
|
|
++s;
|
|
}
|
|
if (*s != '>')
|
|
return NULL;
|
|
if (white_error != NULL && ((!VIM_ISWHITE(*bef) && *bef != '{')
|
|
|| !IS_WHITE_OR_NUL(s[1])))
|
|
{
|
|
*white_error = TRUE;
|
|
semsg(_(e_white_space_required_before_and_after_str_at_str),
|
|
equal_arrow ? "=>" : "->", bef);
|
|
return NULL;
|
|
}
|
|
return skipwhite(s + 1);
|
|
}
|
|
|
|
/*
|
|
* Check if "*cmd" points to a function command and if so advance "*cmd" and
|
|
* return TRUE.
|
|
* Otherwise return FALSE;
|
|
* Do not consider "function(" to be a command.
|
|
*/
|
|
static int
|
|
is_function_cmd(char_u **cmd)
|
|
{
|
|
char_u *p = *cmd;
|
|
|
|
if (checkforcmd(&p, "function", 2))
|
|
{
|
|
if (*p == '(')
|
|
return FALSE;
|
|
*cmd = p;
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Called when defining a function: The context may be needed for script
|
|
* variables declared in a block that is visible now but not when the function
|
|
* is compiled or called later.
|
|
*/
|
|
static void
|
|
function_using_block_scopes(ufunc_T *fp, cstack_T *cstack)
|
|
{
|
|
if (cstack == NULL || cstack->cs_idx < 0)
|
|
return;
|
|
|
|
int count = cstack->cs_idx + 1;
|
|
int i;
|
|
|
|
fp->uf_block_ids = ALLOC_MULT(int, count);
|
|
if (fp->uf_block_ids != NULL)
|
|
{
|
|
mch_memmove(fp->uf_block_ids, cstack->cs_block_id,
|
|
sizeof(int) * count);
|
|
fp->uf_block_depth = count;
|
|
}
|
|
|
|
// Set flag in each block to indicate a function was defined. This
|
|
// is used to keep the variable when leaving the block, see
|
|
// hide_script_var().
|
|
for (i = 0; i <= cstack->cs_idx; ++i)
|
|
cstack->cs_flags[i] |= CSF_FUNC_DEF;
|
|
}
|
|
|
|
/*
|
|
* Skip over all the characters in a single quoted string starting at "p" and
|
|
* return a pointer to the character following the ending single quote.
|
|
* If the ending single quote is missing, then return a pointer to the NUL
|
|
* character.
|
|
*/
|
|
static char_u *
|
|
skip_single_quote_string(char_u *p)
|
|
{
|
|
p++; // skip the beginning single quote
|
|
while (*p != NUL)
|
|
{
|
|
// Within the string, a single quote can be escaped by using
|
|
// two single quotes.
|
|
if (*p == '\'' && *(p + 1) == '\'')
|
|
p += 2;
|
|
else if (*p == '\'')
|
|
{
|
|
p++; // skip the ending single quote
|
|
break;
|
|
}
|
|
else
|
|
MB_PTR_ADV(p);
|
|
}
|
|
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Skip over all the characters in a double quoted string starting at "p" and
|
|
* return a pointer to the character following the ending double quote.
|
|
* If the ending double quote is missing, then return a pointer to the NUL
|
|
* character.
|
|
*/
|
|
static char_u *
|
|
skip_double_quote_string(char_u *p)
|
|
{
|
|
p++; // skip the beginning double quote
|
|
while (*p != NUL)
|
|
{
|
|
// Within the string, a double quote can be escaped by
|
|
// preceding it with a backslash.
|
|
if (*p == '\\' && *(p + 1) == '"')
|
|
p += 2;
|
|
else if (*p == '"')
|
|
{
|
|
p++; // skip the ending double quote
|
|
break;
|
|
}
|
|
else
|
|
MB_PTR_ADV(p);
|
|
}
|
|
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Return the start of a Vim9 comment (#) in the line starting at "line".
|
|
* If a comment is not found, then returns a pointer to the end of the
|
|
* string (NUL).
|
|
*/
|
|
static char_u *
|
|
find_start_of_vim9_comment(char_u *line)
|
|
{
|
|
char_u *p = line;
|
|
|
|
while (*p != NUL)
|
|
{
|
|
if (*p == '\'')
|
|
// Skip a single quoted string.
|
|
p = skip_single_quote_string(p);
|
|
else if (*p == '"')
|
|
// Skip a double quoted string.
|
|
p = skip_double_quote_string(p);
|
|
else
|
|
{
|
|
if (*p == '#')
|
|
// Found the start of a Vim9 comment
|
|
break;
|
|
MB_PTR_ADV(p);
|
|
}
|
|
}
|
|
|
|
return p;
|
|
}
|
|
|
|
/*
|
|
* Read the body of a function, put every line in "newlines".
|
|
* This stops at "}", "endfunction" or "enddef".
|
|
* "newlines" must already have been initialized.
|
|
* "eap->cmdidx" is CMD_function, CMD_def or CMD_block;
|
|
*/
|
|
static int
|
|
get_function_body(
|
|
exarg_T *eap,
|
|
garray_T *newlines,
|
|
char_u *line_arg_in,
|
|
garray_T *lines_to_free)
|
|
{
|
|
linenr_T sourcing_lnum_top = SOURCING_LNUM;
|
|
linenr_T sourcing_lnum_off;
|
|
int saved_wait_return = need_wait_return;
|
|
char_u *line_arg = line_arg_in;
|
|
int vim9_function = eap->cmdidx == CMD_def
|
|
|| eap->cmdidx == CMD_block;
|
|
#define MAX_FUNC_NESTING 50
|
|
char nesting_def[MAX_FUNC_NESTING];
|
|
char nesting_inline[MAX_FUNC_NESTING];
|
|
int nesting = 0;
|
|
getline_opt_T getline_options;
|
|
int indent = 2;
|
|
char_u *skip_until = NULL;
|
|
int ret = FAIL;
|
|
int is_heredoc = FALSE;
|
|
int heredoc_concat_len = 0;
|
|
garray_T heredoc_ga;
|
|
char_u *heredoc_trimmed = NULL;
|
|
size_t heredoc_trimmedlen = 0;
|
|
|
|
ga_init2(&heredoc_ga, 1, 500);
|
|
|
|
// Detect having skipped over comment lines to find the return
|
|
// type. Add NULL lines to keep the line count correct.
|
|
sourcing_lnum_off = get_sourced_lnum(eap->ea_getline, eap->cookie);
|
|
if (SOURCING_LNUM < sourcing_lnum_off)
|
|
{
|
|
sourcing_lnum_off -= SOURCING_LNUM;
|
|
if (ga_grow(newlines, sourcing_lnum_off) == FAIL)
|
|
goto theend;
|
|
while (sourcing_lnum_off-- > 0)
|
|
((char_u **)(newlines->ga_data))[newlines->ga_len++] = NULL;
|
|
}
|
|
|
|
nesting_def[0] = vim9_function;
|
|
nesting_inline[0] = eap->cmdidx == CMD_block;
|
|
getline_options = vim9_function
|
|
? GETLINE_CONCAT_CONTBAR : GETLINE_CONCAT_CONT;
|
|
for (;;)
|
|
{
|
|
char_u *theline;
|
|
char_u *p;
|
|
char_u *arg;
|
|
|
|
if (KeyTyped)
|
|
{
|
|
msg_scroll = TRUE;
|
|
saved_wait_return = FALSE;
|
|
}
|
|
need_wait_return = FALSE;
|
|
|
|
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
|
|
{
|
|
theline = get_function_line(eap, lines_to_free, indent,
|
|
getline_options);
|
|
}
|
|
if (KeyTyped)
|
|
lines_left = Rows - 1;
|
|
if (theline == NULL)
|
|
{
|
|
// Use the start of the function for the line number.
|
|
SOURCING_LNUM = sourcing_lnum_top;
|
|
if (skip_until != NULL)
|
|
semsg(_(e_missing_heredoc_end_marker_str), skip_until);
|
|
else if (nesting_inline[nesting])
|
|
emsg(_(e_missing_end_block));
|
|
else if (eap->cmdidx == CMD_def)
|
|
emsg(_(e_missing_enddef));
|
|
else
|
|
emsg(_(e_missing_endfunction));
|
|
goto theend;
|
|
}
|
|
|
|
// Detect line continuation: SOURCING_LNUM increased more than one.
|
|
sourcing_lnum_off = get_sourced_lnum(eap->ea_getline, eap->cookie);
|
|
if (SOURCING_LNUM < sourcing_lnum_off)
|
|
sourcing_lnum_off -= SOURCING_LNUM;
|
|
else
|
|
sourcing_lnum_off = 0;
|
|
|
|
if (skip_until != NULL)
|
|
{
|
|
// Don't check for ":endfunc"/":enddef" between
|
|
// * ":append" and "."
|
|
// * ":python <<EOF" and "EOF"
|
|
// * ":let {var-name} =<< [trim] {marker}" and "{marker}"
|
|
if (heredoc_trimmed == NULL
|
|
|| (is_heredoc && skipwhite(theline) == theline)
|
|
|| STRNCMP(theline, heredoc_trimmed,
|
|
heredoc_trimmedlen) == 0)
|
|
{
|
|
if (heredoc_trimmed == NULL)
|
|
p = theline;
|
|
else if (is_heredoc)
|
|
p = skipwhite(theline) == theline
|
|
? theline : theline + heredoc_trimmedlen;
|
|
else
|
|
p = theline + heredoc_trimmedlen;
|
|
if (STRCMP(p, skip_until) == 0)
|
|
{
|
|
VIM_CLEAR(skip_until);
|
|
VIM_CLEAR(heredoc_trimmed);
|
|
heredoc_trimmedlen = 0;
|
|
getline_options = vim9_function
|
|
? GETLINE_CONCAT_CONTBAR : GETLINE_CONCAT_CONT;
|
|
is_heredoc = FALSE;
|
|
|
|
if (heredoc_concat_len > 0)
|
|
{
|
|
// Replace the starting line with all the concatenated
|
|
// lines.
|
|
ga_concat(&heredoc_ga, theline);
|
|
vim_free(((char_u **)(newlines->ga_data))[
|
|
heredoc_concat_len - 1]);
|
|
((char_u **)(newlines->ga_data))[
|
|
heredoc_concat_len - 1] = heredoc_ga.ga_data;
|
|
ga_init(&heredoc_ga);
|
|
heredoc_concat_len = 0;
|
|
theline += STRLEN(theline); // skip the "EOF"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int c;
|
|
char_u *end;
|
|
char_u *cmd;
|
|
|
|
// skip ':' and blanks
|
|
for (p = theline; VIM_ISWHITE(*p) || *p == ':'; ++p)
|
|
;
|
|
|
|
// Check for "endfunction", "enddef" or "}".
|
|
// When a ":" follows it must be a dict key; "enddef: value,"
|
|
cmd = p;
|
|
if (nesting_inline[nesting]
|
|
? *p == '}'
|
|
: (checkforcmd(&p, nesting_def[nesting]
|
|
? "enddef" : "endfunction", 4)
|
|
&& *p != ':'))
|
|
{
|
|
if (!nesting_inline[nesting] && nesting_def[nesting]
|
|
&& p < cmd + 6)
|
|
semsg(_(e_command_cannot_be_shortened_str), "enddef");
|
|
if (nesting-- == 0)
|
|
{
|
|
char_u *nextcmd = NULL;
|
|
|
|
if (*p == '|' || *p == '}')
|
|
nextcmd = p + 1;
|
|
else if (line_arg != NULL && *skipwhite(line_arg) != NUL)
|
|
nextcmd = line_arg;
|
|
else if (*p != NUL && *p != (vim9_function ? '#' : '"')
|
|
&& (vim9_function || p_verbose > 0))
|
|
{
|
|
SOURCING_LNUM = sourcing_lnum_top
|
|
+ newlines->ga_len + 1;
|
|
if (eap->cmdidx == CMD_def)
|
|
semsg(_(e_text_found_after_str_str), "enddef", p);
|
|
else
|
|
give_warning2((char_u *)
|
|
_("W22: Text found after :endfunction: %s"),
|
|
p, TRUE);
|
|
}
|
|
if (nextcmd != NULL && *skipwhite(nextcmd) != NUL)
|
|
{
|
|
// Another command follows. If the line came from "eap"
|
|
// we can simply point into it, otherwise we need to
|
|
// change "eap->cmdlinep" to point to the last fetched
|
|
// line.
|
|
eap->nextcmd = nextcmd;
|
|
if (lines_to_free->ga_len > 0
|
|
&& *eap->cmdlinep !=
|
|
((char_u **)lines_to_free->ga_data)
|
|
[lines_to_free->ga_len - 1])
|
|
{
|
|
// *cmdlinep will be freed later, thus remove the
|
|
// line from lines_to_free.
|
|
vim_free(*eap->cmdlinep);
|
|
*eap->cmdlinep = ((char_u **)lines_to_free->ga_data)
|
|
[lines_to_free->ga_len - 1];
|
|
--lines_to_free->ga_len;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Check for mismatched "endfunc" or "enddef".
|
|
// We don't check for "def" inside "func" thus we also can't check
|
|
// for "enddef".
|
|
// We continue to find the end of the function, although we might
|
|
// not find it.
|
|
else if (nesting_def[nesting])
|
|
{
|
|
if (checkforcmd(&p, "endfunction", 4) && *p != ':')
|
|
emsg(_(e_mismatched_endfunction));
|
|
}
|
|
else if (eap->cmdidx == CMD_def && checkforcmd(&p, "enddef", 4))
|
|
emsg(_(e_mismatched_enddef));
|
|
|
|
// Increase indent inside "if", "while", "for" and "try", decrease
|
|
// at "end".
|
|
if (indent > 2 && (*p == '}' || 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.
|
|
// Only recognize "def" inside "def", not inside "function",
|
|
// For backwards compatibility, see Test_function_python().
|
|
c = *p;
|
|
if (is_function_cmd(&p)
|
|
|| (eap->cmdidx == CMD_def && checkforcmd(&p, "def", 3)))
|
|
{
|
|
if (*p == '!')
|
|
p = skipwhite(p + 1);
|
|
p += eval_fname_script(p);
|
|
vim_free(trans_function_name(&p, NULL, TRUE, 0));
|
|
if (*skipwhite(p) == '(')
|
|
{
|
|
if (nesting == MAX_FUNC_NESTING - 1)
|
|
emsg(_(e_function_nesting_too_deep));
|
|
else
|
|
{
|
|
++nesting;
|
|
nesting_def[nesting] = (c == 'd');
|
|
nesting_inline[nesting] = FALSE;
|
|
indent += 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (nesting_def[nesting] ? *p != '#' : *p != '"')
|
|
{
|
|
// Not a comment line: check for nested inline function.
|
|
|
|
if (nesting_inline[nesting])
|
|
{
|
|
// A comment (#) can follow the opening curly brace of a
|
|
// block statement. Need to ignore the comment and look
|
|
// for the opening curly brace before the comment.
|
|
end = find_start_of_vim9_comment(p) - 1;
|
|
}
|
|
else
|
|
end = p + STRLEN(p) - 1;
|
|
|
|
while (end > p && VIM_ISWHITE(*end))
|
|
--end;
|
|
if (end > p + 1 && *end == '{' && VIM_ISWHITE(end[-1]))
|
|
{
|
|
int is_block;
|
|
|
|
// check for trailing "=> {": start of an inline function
|
|
--end;
|
|
while (end > p && VIM_ISWHITE(*end))
|
|
--end;
|
|
is_block = end > p + 2 && end[-1] == '=' && end[0] == '>';
|
|
if (!is_block)
|
|
{
|
|
char_u *s = p;
|
|
|
|
// check for line starting with "au" for :autocmd or
|
|
// "com" for :command, these can use a {} block
|
|
is_block = checkforcmd_noparen(&s, "autocmd", 2)
|
|
|| checkforcmd_noparen(&s, "command", 3);
|
|
}
|
|
|
|
if (is_block)
|
|
{
|
|
if (nesting == MAX_FUNC_NESTING - 1)
|
|
emsg(_(e_function_nesting_too_deep));
|
|
else
|
|
{
|
|
++nesting;
|
|
nesting_def[nesting] = TRUE;
|
|
nesting_inline[nesting] = TRUE;
|
|
indent += 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check for ":append", ":change", ":insert". Not for :def.
|
|
p = skip_range(p, FALSE, NULL);
|
|
if (!vim9_function
|
|
&& ((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'
|
|
&& (!ASCII_ISALPHA(p[3])
|
|
|| p[3] == 'e'))))))))
|
|
skip_until = vim_strnsave((char_u *)".", 1);
|
|
|
|
// 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 (STRNCMP(p, "trim", 4) == 0
|
|
&& (p[4] == NUL || VIM_ISWHITE(p[4])))
|
|
{
|
|
// Ignore leading white space.
|
|
p = skipwhite(p + 4);
|
|
heredoc_trimmedlen = skipwhite(theline) - theline;
|
|
heredoc_trimmed = vim_strnsave(theline, heredoc_trimmedlen);
|
|
if (heredoc_trimmed == NULL)
|
|
heredoc_trimmedlen = 0;
|
|
}
|
|
if (*p == NUL)
|
|
skip_until = vim_strnsave((char_u *)".", 1);
|
|
else
|
|
skip_until = vim_strnsave(p, skiptowhite(p) - p);
|
|
getline_options = GETLINE_NONE;
|
|
is_heredoc = TRUE;
|
|
if (vim9_function && nesting == 0)
|
|
heredoc_concat_len = newlines->ga_len + 1;
|
|
}
|
|
|
|
if (!is_heredoc)
|
|
{
|
|
// Check for ":cmd v =<< [trim] EOF"
|
|
// and ":cmd [a, b] =<< [trim] EOF"
|
|
// and "lines =<< [trim] EOF" for Vim9
|
|
// Where "cmd" can be "let", "var", "final" or "const".
|
|
arg = p;
|
|
if (checkforcmd(&arg, "let", 2)
|
|
|| checkforcmd(&arg, "var", 3)
|
|
|| checkforcmd(&arg, "final", 5)
|
|
|| checkforcmd(&arg, "const", 5)
|
|
|| vim9_function)
|
|
{
|
|
int save_sc_version = current_sctx.sc_version;
|
|
int var_count = 0;
|
|
int semicolon = 0;
|
|
|
|
current_sctx.sc_version
|
|
= vim9_function ? SCRIPT_VERSION_VIM9 : 1;
|
|
arg = skip_var_list(arg, TRUE, &var_count, &semicolon,
|
|
TRUE);
|
|
if (arg != NULL)
|
|
arg = skipwhite(arg);
|
|
current_sctx.sc_version = save_sc_version;
|
|
if (arg != NULL && STRNCMP(arg, "=<<", 3) == 0)
|
|
{
|
|
int has_trim = FALSE;
|
|
|
|
p = skipwhite(arg + 3);
|
|
while (TRUE)
|
|
{
|
|
if (STRNCMP(p, "trim", 4) == 0
|
|
&& (p[4] == NUL || VIM_ISWHITE(p[4])))
|
|
{
|
|
// Ignore leading white space.
|
|
p = skipwhite(p + 4);
|
|
has_trim = TRUE;
|
|
continue;
|
|
}
|
|
if (STRNCMP(p, "eval", 4) == 0
|
|
&& (p[4] == NUL || VIM_ISWHITE(p[4])))
|
|
{
|
|
// Ignore leading white space.
|
|
p = skipwhite(p + 4);
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
if (has_trim)
|
|
{
|
|
heredoc_trimmedlen = skipwhite(theline) - theline;
|
|
heredoc_trimmed = vim_strnsave(theline, heredoc_trimmedlen);
|
|
if (heredoc_trimmed == NULL)
|
|
heredoc_trimmedlen = 0;
|
|
}
|
|
skip_until = vim_strnsave(p, skiptowhite(p) - p);
|
|
getline_options = GETLINE_NONE;
|
|
is_heredoc = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add the line to the function.
|
|
if (ga_grow_id(newlines, 1 + sourcing_lnum_off, aid_get_func) == FAIL)
|
|
goto theend;
|
|
|
|
if (heredoc_concat_len > 0)
|
|
{
|
|
// For a :def function "python << EOF" concatenates all the lines,
|
|
// to be used for the instruction later.
|
|
ga_concat(&heredoc_ga, theline);
|
|
ga_concat(&heredoc_ga, (char_u *)"\n");
|
|
p = vim_strnsave((char_u *)"", 0);
|
|
}
|
|
else
|
|
{
|
|
// 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 theend;
|
|
((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;
|
|
}
|
|
|
|
// Return OK when no error was detected.
|
|
if (!did_emsg)
|
|
ret = OK;
|
|
|
|
theend:
|
|
vim_free(skip_until);
|
|
vim_free(heredoc_trimmed);
|
|
vim_free(heredoc_ga.ga_data);
|
|
need_wait_return |= saved_wait_return;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Handle the body of a lambda. *arg points to the "{", process statements
|
|
* until the matching "}".
|
|
* When not evaluating "newargs" is NULL.
|
|
* When successful "rettv" is set to a funcref.
|
|
*/
|
|
static int
|
|
lambda_function_body(
|
|
char_u **arg,
|
|
typval_T *rettv,
|
|
evalarg_T *evalarg,
|
|
garray_T *newargs,
|
|
garray_T *argtypes,
|
|
int varargs,
|
|
garray_T *default_args,
|
|
char_u *ret_type)
|
|
{
|
|
char_u *start = *arg;
|
|
int evaluate = (evalarg->eval_flags & EVAL_EVALUATE);
|
|
garray_T *gap = &evalarg->eval_ga;
|
|
garray_T *freegap = &evalarg->eval_freega;
|
|
ufunc_T *ufunc = NULL;
|
|
exarg_T eap;
|
|
garray_T newlines;
|
|
char_u *cmdline = NULL;
|
|
int ret = FAIL;
|
|
partial_T *pt;
|
|
string_T name;
|
|
int lnum_save = -1;
|
|
linenr_T sourcing_lnum_top = SOURCING_LNUM;
|
|
char_u *line_arg = NULL;
|
|
|
|
*arg = skipwhite(*arg + 1);
|
|
if (**arg == '|' || !ends_excmd2(start, *arg))
|
|
{
|
|
semsg(_(e_trailing_characters_str), *arg);
|
|
return FAIL;
|
|
}
|
|
|
|
// When there is a line break use what follows for the lambda body.
|
|
// Makes lambda body initializers work for object and enum member
|
|
// variables.
|
|
if (**arg == '\n')
|
|
line_arg = *arg + 1;
|
|
|
|
CLEAR_FIELD(eap);
|
|
eap.cmdidx = CMD_block;
|
|
eap.forceit = FALSE;
|
|
eap.cmdlinep = &cmdline;
|
|
eap.skip = !evaluate;
|
|
if (evalarg->eval_cctx != NULL)
|
|
fill_exarg_from_cctx(&eap, evalarg->eval_cctx);
|
|
else
|
|
{
|
|
eap.ea_getline = evalarg->eval_getline;
|
|
eap.cookie = evalarg->eval_cookie;
|
|
}
|
|
|
|
ga_init2(&newlines, sizeof(char_u *), 10);
|
|
if (get_function_body(&eap, &newlines, line_arg,
|
|
&evalarg->eval_tofree_ga) == FAIL)
|
|
goto erret;
|
|
|
|
// When inside a lambda must add the function lines to evalarg.eval_ga.
|
|
evalarg->eval_break_count += newlines.ga_len;
|
|
if (gap->ga_itemsize > 0)
|
|
{
|
|
int idx;
|
|
char_u *last;
|
|
size_t plen;
|
|
char_u *pnl;
|
|
|
|
for (idx = 0; idx < newlines.ga_len; ++idx)
|
|
{
|
|
char_u *p = ((char_u **)newlines.ga_data)[idx];
|
|
if (p == NULL)
|
|
// comment line in the lambda body
|
|
continue;
|
|
|
|
p = skipwhite(p);
|
|
|
|
if (ga_grow(gap, 1) == FAIL || ga_grow(freegap, 1) == FAIL)
|
|
goto erret;
|
|
|
|
// Going to concatenate the lines after parsing. For an empty or
|
|
// comment line use an empty string.
|
|
// Insert NL characters at the start of each line, the string will
|
|
// be split again later in .get_lambda_tv().
|
|
if (*p == NUL || vim9_comment_start(p))
|
|
{
|
|
p = (char_u *)"";
|
|
plen = 0;
|
|
}
|
|
else
|
|
plen = STRLEN(p);
|
|
pnl = vim_strnsave((char_u *)"\n", plen + 1);
|
|
if (pnl != NULL)
|
|
mch_memmove(pnl + 1, p, plen + 1);
|
|
((char_u **)gap->ga_data)[gap->ga_len++] = pnl;
|
|
((char_u **)freegap->ga_data)[freegap->ga_len++] = pnl;
|
|
}
|
|
if (ga_grow(gap, 1) == FAIL || ga_grow(freegap, 1) == FAIL)
|
|
goto erret;
|
|
if (eap.nextcmd != NULL)
|
|
{
|
|
// more is following after the "}", which was skipped
|
|
last = cmdline;
|
|
plen = STRLEN(last);
|
|
}
|
|
else
|
|
{
|
|
// nothing is following the "}"
|
|
last = (char_u *)"}";
|
|
plen = 1;
|
|
}
|
|
pnl = vim_strnsave((char_u *)"\n", plen + 1);
|
|
if (pnl != NULL)
|
|
mch_memmove(pnl + 1, last, plen + 1);
|
|
((char_u **)gap->ga_data)[gap->ga_len++] = pnl;
|
|
((char_u **)freegap->ga_data)[freegap->ga_len++] = pnl;
|
|
}
|
|
|
|
if (eap.nextcmd != NULL)
|
|
{
|
|
garray_T *tfgap = &evalarg->eval_tofree_ga;
|
|
|
|
// Something comes after the "}".
|
|
*arg = eap.nextcmd;
|
|
|
|
// "arg" points into cmdline, need to keep the line and free it later.
|
|
if (ga_grow(tfgap, 1) == OK)
|
|
{
|
|
((char_u **)(tfgap->ga_data))[tfgap->ga_len++] = cmdline;
|
|
evalarg->eval_using_cmdline = TRUE;
|
|
}
|
|
}
|
|
else
|
|
*arg = (char_u *)"";
|
|
|
|
if (!evaluate)
|
|
{
|
|
ret = OK;
|
|
goto erret;
|
|
}
|
|
|
|
name = get_lambda_name();
|
|
ufunc = alloc_ufunc(name.string, name.length);
|
|
if (ufunc == NULL)
|
|
goto erret;
|
|
if (hash_add(&func_hashtab, UF2HIKEY(ufunc), "add function") == FAIL)
|
|
goto erret;
|
|
ufunc->uf_flags = FC_LAMBDA;
|
|
ufunc->uf_refcount = 1;
|
|
ufunc->uf_args = *newargs;
|
|
newargs->ga_data = NULL;
|
|
ufunc->uf_def_args = *default_args;
|
|
default_args->ga_data = NULL;
|
|
ufunc->uf_func_type = &t_func_any;
|
|
|
|
// error messages are for the first function line
|
|
lnum_save = SOURCING_LNUM;
|
|
SOURCING_LNUM = sourcing_lnum_top;
|
|
|
|
// parse argument types
|
|
if (parse_argument_types(ufunc, argtypes, varargs, NULL, NULL, 0) == FAIL)
|
|
{
|
|
SOURCING_LNUM = lnum_save;
|
|
goto erret;
|
|
}
|
|
|
|
// parse the return type, if any
|
|
if (parse_return_type(ufunc, ret_type) == FAIL)
|
|
goto erret;
|
|
|
|
pt = ALLOC_CLEAR_ONE(partial_T);
|
|
if (pt == NULL)
|
|
goto erret;
|
|
pt->pt_func = ufunc;
|
|
pt->pt_refcount = 1;
|
|
|
|
ufunc->uf_lines = newlines;
|
|
newlines.ga_data = NULL;
|
|
if (sandbox)
|
|
ufunc->uf_flags |= FC_SANDBOX;
|
|
if (!ASCII_ISUPPER(*ufunc->uf_name))
|
|
ufunc->uf_flags |= FC_VIM9;
|
|
ufunc->uf_script_ctx = current_sctx;
|
|
ufunc->uf_script_ctx_version = current_sctx.sc_version;
|
|
ufunc->uf_script_ctx.sc_lnum += sourcing_lnum_top;
|
|
set_function_type(ufunc);
|
|
|
|
function_using_block_scopes(ufunc, evalarg->eval_cstack);
|
|
|
|
rettv->vval.v_partial = pt;
|
|
rettv->v_type = VAR_PARTIAL;
|
|
ufunc = NULL;
|
|
ret = OK;
|
|
|
|
erret:
|
|
if (lnum_save >= 0)
|
|
SOURCING_LNUM = lnum_save;
|
|
ga_clear_strings(&newlines);
|
|
if (newargs != NULL)
|
|
ga_clear_strings(newargs);
|
|
ga_clear_strings(default_args);
|
|
if (ufunc != NULL)
|
|
{
|
|
func_clear(ufunc, TRUE);
|
|
func_free(ufunc, TRUE);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Parse a lambda expression and get a Funcref from "*arg" into "rettv".
|
|
* "arg" points to the { in "{arg -> expr}" or the ( in "(arg) => expr"
|
|
* When "types_optional" is TRUE optionally take argument types.
|
|
* Return OK or FAIL. Returns NOTDONE for dict or {expr}.
|
|
*/
|
|
int
|
|
get_lambda_tv(
|
|
char_u **arg,
|
|
typval_T *rettv,
|
|
int types_optional,
|
|
evalarg_T *evalarg)
|
|
{
|
|
int evaluate = evalarg != NULL
|
|
&& (evalarg->eval_flags & EVAL_EVALUATE);
|
|
garray_T newargs;
|
|
garray_T newlines;
|
|
garray_T *pnewargs;
|
|
garray_T argtypes;
|
|
garray_T default_args;
|
|
garray_T arg_objm;
|
|
ufunc_T *fp = NULL;
|
|
partial_T *pt = NULL;
|
|
int varargs;
|
|
char_u *ret_type = NULL;
|
|
int ret;
|
|
char_u *s;
|
|
char_u *start, *end;
|
|
int *old_eval_lavars = eval_lavars_used;
|
|
int eval_lavars = FALSE;
|
|
char_u *tofree2 = NULL;
|
|
int equal_arrow = **arg == '(';
|
|
int white_error = FALSE;
|
|
int called_emsg_start = called_emsg;
|
|
int vim9script = in_vim9script();
|
|
long start_lnum = SOURCING_LNUM;
|
|
|
|
if (equal_arrow && !vim9script)
|
|
return NOTDONE;
|
|
|
|
ga_init(&newargs);
|
|
ga_init(&newlines);
|
|
|
|
// First, check if this is really a lambda expression. "->" or "=>" must
|
|
// be found after the arguments.
|
|
s = *arg + 1;
|
|
ret = get_function_args(&s, equal_arrow ? ')' : '-', NULL,
|
|
types_optional ? &argtypes : NULL, types_optional,
|
|
types_optional ? &arg_objm : NULL, evalarg,
|
|
NULL, &default_args, TRUE, NULL, FALSE, NULL, NULL);
|
|
if (ret == FAIL || skip_arrow(s, equal_arrow, &ret_type, NULL) == NULL)
|
|
{
|
|
if (types_optional)
|
|
{
|
|
ga_clear_strings(&argtypes);
|
|
ga_clear(&arg_objm);
|
|
}
|
|
return called_emsg == called_emsg_start ? NOTDONE : FAIL;
|
|
}
|
|
|
|
// Parse the arguments for real.
|
|
if (evaluate)
|
|
pnewargs = &newargs;
|
|
else
|
|
pnewargs = NULL;
|
|
*arg += 1;
|
|
ret = get_function_args(arg, equal_arrow ? ')' : '-', pnewargs,
|
|
types_optional ? &argtypes : NULL, types_optional,
|
|
types_optional ? &arg_objm : NULL, evalarg,
|
|
&varargs, &default_args,
|
|
FALSE, NULL, FALSE, NULL, NULL);
|
|
if (ret == FAIL
|
|
|| (s = skip_arrow(*arg, equal_arrow, &ret_type,
|
|
equal_arrow || vim9script ? &white_error : NULL)) == NULL)
|
|
{
|
|
if (types_optional)
|
|
{
|
|
ga_clear_strings(&argtypes);
|
|
ga_clear(&arg_objm);
|
|
}
|
|
ga_clear_strings(&newargs);
|
|
return white_error ? FAIL : NOTDONE;
|
|
}
|
|
*arg = s;
|
|
|
|
// Skipping over linebreaks may make "ret_type" invalid, make a copy.
|
|
if (ret_type != NULL)
|
|
{
|
|
ret_type = vim_strsave(ret_type);
|
|
tofree2 = ret_type;
|
|
}
|
|
|
|
// Set up a flag for checking local variables and arguments.
|
|
if (evaluate)
|
|
eval_lavars_used = &eval_lavars;
|
|
|
|
*arg = skipwhite_and_linebreak(*arg, evalarg);
|
|
|
|
// Recognize "{" as the start of a function body.
|
|
if (equal_arrow && **arg == '{')
|
|
{
|
|
if (evalarg == NULL)
|
|
// cannot happen?
|
|
goto theend;
|
|
SOURCING_LNUM = start_lnum; // used for where lambda is defined
|
|
if (lambda_function_body(arg, rettv, evalarg, pnewargs,
|
|
types_optional ? &argtypes : NULL, varargs,
|
|
&default_args, ret_type) == FAIL)
|
|
goto errret;
|
|
goto theend;
|
|
}
|
|
if (default_args.ga_len > 0)
|
|
{
|
|
emsg(_(e_cannot_use_default_values_in_lambda));
|
|
goto errret;
|
|
}
|
|
|
|
// Get the start and the end of the expression.
|
|
start = *arg;
|
|
ret = skip_expr_concatenate(arg, &start, &end, evalarg);
|
|
if (ret == FAIL)
|
|
goto errret;
|
|
|
|
if (!equal_arrow)
|
|
{
|
|
*arg = skipwhite_and_linebreak(*arg, evalarg);
|
|
if (**arg != '}')
|
|
{
|
|
semsg(_(e_expected_right_curly_str), *arg);
|
|
goto errret;
|
|
}
|
|
++*arg;
|
|
}
|
|
|
|
if (evaluate)
|
|
{
|
|
int len;
|
|
int flags = FC_LAMBDA;
|
|
char_u *p;
|
|
char_u *line_end;
|
|
string_T name = get_lambda_name();
|
|
|
|
fp = alloc_ufunc(name.string, name.length);
|
|
if (fp == NULL)
|
|
goto errret;
|
|
fp->uf_def_status = UF_NOT_COMPILED;
|
|
pt = ALLOC_CLEAR_ONE(partial_T);
|
|
if (pt == NULL)
|
|
goto errret;
|
|
|
|
ga_init2(&newlines, sizeof(char_u *), 1);
|
|
if (ga_grow(&newlines, 1) == FAIL)
|
|
goto errret;
|
|
|
|
// If there are line breaks, we need to split up the string.
|
|
line_end = vim_strchr(start, '\n');
|
|
if (line_end == NULL || line_end > end)
|
|
line_end = end;
|
|
|
|
// Add "return " before the expression (or the first line).
|
|
len = 7 + (int)(line_end - start) + 1;
|
|
p = alloc(len);
|
|
if (p == NULL)
|
|
goto errret;
|
|
((char_u **)(newlines.ga_data))[newlines.ga_len++] = p;
|
|
STRCPY(p, "return ");
|
|
vim_strncpy(p + 7, start, line_end - start);
|
|
|
|
if (line_end != end)
|
|
{
|
|
// Add more lines, split by line breaks. Thus is used when a
|
|
// lambda with { cmds } is encountered.
|
|
while (*line_end == '\n')
|
|
{
|
|
if (ga_grow(&newlines, 1) == FAIL)
|
|
goto errret;
|
|
start = line_end + 1;
|
|
line_end = vim_strchr(start, '\n');
|
|
if (line_end == NULL)
|
|
line_end = end;
|
|
((char_u **)(newlines.ga_data))[newlines.ga_len++] =
|
|
vim_strnsave(start, line_end - start);
|
|
}
|
|
}
|
|
|
|
if (strstr((char *)p + 7, "a:") == NULL)
|
|
// No a: variables are used for sure.
|
|
flags |= FC_NOARGS;
|
|
|
|
fp->uf_refcount = 1;
|
|
fp->uf_args = newargs;
|
|
ga_init(&fp->uf_def_args);
|
|
if (types_optional)
|
|
{
|
|
if (parse_argument_types(fp, &argtypes,
|
|
vim9script && varargs, NULL, NULL, 0) == FAIL)
|
|
goto errret;
|
|
if (ret_type != NULL)
|
|
{
|
|
fp->uf_ret_type = parse_type(&ret_type,
|
|
&fp->uf_type_list, TRUE);
|
|
if (fp->uf_ret_type == NULL)
|
|
goto errret;
|
|
}
|
|
else
|
|
fp->uf_ret_type = &t_unknown;
|
|
}
|
|
|
|
fp->uf_lines = newlines;
|
|
if (current_funccal != NULL && eval_lavars)
|
|
{
|
|
flags |= FC_CLOSURE;
|
|
if (register_closure(fp) == FAIL)
|
|
goto errret;
|
|
}
|
|
|
|
#ifdef FEAT_PROFILE
|
|
if (prof_def_func())
|
|
func_do_profile(fp);
|
|
#endif
|
|
if (sandbox)
|
|
flags |= FC_SANDBOX;
|
|
// In legacy script a lambda can be called with more args than
|
|
// uf_args.ga_len. In Vim9 script "...name" has to be used.
|
|
fp->uf_varargs = !vim9script || varargs;
|
|
fp->uf_flags = flags;
|
|
fp->uf_calls = 0;
|
|
fp->uf_script_ctx = current_sctx;
|
|
// Use the line number of the arguments.
|
|
fp->uf_script_ctx.sc_lnum += start_lnum;
|
|
|
|
function_using_block_scopes(fp, evalarg->eval_cstack);
|
|
|
|
pt->pt_func = fp;
|
|
pt->pt_refcount = 1;
|
|
rettv->vval.v_partial = pt;
|
|
rettv->v_type = VAR_PARTIAL;
|
|
|
|
hash_add(&func_hashtab, UF2HIKEY(fp), "add lambda");
|
|
}
|
|
|
|
theend:
|
|
eval_lavars_used = old_eval_lavars;
|
|
vim_free(tofree2);
|
|
if (types_optional)
|
|
{
|
|
ga_clear_strings(&argtypes);
|
|
ga_clear(&arg_objm);
|
|
}
|
|
|
|
return OK;
|
|
|
|
errret:
|
|
ga_clear_strings(&newargs);
|
|
ga_clear_strings(&newlines);
|
|
ga_clear_strings(&default_args);
|
|
if (types_optional)
|
|
{
|
|
ga_clear_strings(&argtypes);
|
|
ga_clear(&arg_objm);
|
|
}
|
|
if (fp != NULL)
|
|
{
|
|
vim_free(fp->uf_arg_types);
|
|
vim_free(fp->uf_name_exp);
|
|
vim_free(fp);
|
|
}
|
|
vim_free(pt);
|
|
vim_free(tofree2);
|
|
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".
|
|
* If "type" is not NULL and a Vim9 script-local variable is found look up the
|
|
* type of the variable.
|
|
* If "new_function" is TRUE the name is for a new function.
|
|
* If "found_var" is not NULL and a variable was found set it to TRUE.
|
|
*/
|
|
char_u *
|
|
deref_func_name(
|
|
char_u *name,
|
|
int *lenp,
|
|
partial_T **partialp,
|
|
type_T **type,
|
|
int no_autoload,
|
|
int new_function,
|
|
int *found_var)
|
|
{
|
|
dictitem_T *v;
|
|
typval_T *tv = NULL;
|
|
int cc;
|
|
char_u *s = NULL;
|
|
hashtab_T *ht;
|
|
int did_type = FALSE;
|
|
|
|
if (partialp != NULL)
|
|
*partialp = NULL;
|
|
|
|
cc = name[*lenp];
|
|
name[*lenp] = NUL;
|
|
|
|
v = find_var_also_in_script(name, &ht, no_autoload);
|
|
name[*lenp] = cc;
|
|
if (v != NULL)
|
|
{
|
|
tv = &v->di_tv;
|
|
}
|
|
else if (in_vim9script() || STRNCMP(name, "s:", 2) == 0)
|
|
{
|
|
imported_T *import;
|
|
char_u *p = name;
|
|
int len = *lenp;
|
|
|
|
if (STRNCMP(name, "s:", 2) == 0)
|
|
{
|
|
p = name + 2;
|
|
len -= 2;
|
|
}
|
|
import = find_imported(p, len, FALSE);
|
|
|
|
// imported function from another script
|
|
if (import != NULL)
|
|
{
|
|
name[len] = NUL;
|
|
if (new_function)
|
|
semsg(_(e_redefining_imported_item_str), name);
|
|
else
|
|
semsg(_(e_cannot_use_str_itself_it_is_imported), name);
|
|
name[len] = cc;
|
|
*lenp = 0;
|
|
return (char_u *)""; // just in case
|
|
}
|
|
}
|
|
|
|
if (tv != NULL)
|
|
{
|
|
if (found_var != NULL)
|
|
*found_var = TRUE;
|
|
if (tv->v_type == VAR_FUNC)
|
|
{
|
|
if (tv->vval.v_string == NULL)
|
|
{
|
|
*lenp = 0;
|
|
return (char_u *)""; // just in case
|
|
}
|
|
s = tv->vval.v_string;
|
|
*lenp = (int)STRLEN(s);
|
|
}
|
|
|
|
if (tv->v_type == VAR_PARTIAL)
|
|
{
|
|
partial_T *pt = 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);
|
|
}
|
|
|
|
if (s != NULL)
|
|
{
|
|
if (!did_type && type != NULL && ht == get_script_local_ht())
|
|
{
|
|
svar_T *sv = find_typval_in_script(tv, 0, TRUE);
|
|
|
|
if (sv != NULL)
|
|
*type = sv->sv_type;
|
|
}
|
|
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 _().
|
|
*/
|
|
void
|
|
emsg_funcname(char *ermsg, char_u *name)
|
|
{
|
|
char_u *p = name;
|
|
|
|
if (name[0] == K_SPECIAL && name[1] != NUL && name[2] != NUL)
|
|
p = concat_str((char_u *)"<SNR>", name + 3);
|
|
semsg(_(ermsg), p);
|
|
if (p != name)
|
|
vim_free(p);
|
|
}
|
|
|
|
/*
|
|
* Get function arguments at "*arg" and advance it.
|
|
* Return them in "*argvars[MAX_FUNC_ARGS + 1]" and the count in "argcount".
|
|
* On failure FAIL is returned but the "argvars[argcount]" are still set.
|
|
*/
|
|
int
|
|
get_func_arguments(
|
|
char_u **arg,
|
|
evalarg_T *evalarg,
|
|
int partial_argc,
|
|
typval_T *argvars,
|
|
int *argcount,
|
|
int is_builtin)
|
|
{
|
|
char_u *argp = *arg;
|
|
int ret = OK;
|
|
int vim9script = in_vim9script();
|
|
int evaluate = evalarg == NULL
|
|
? FALSE : (evalarg->eval_flags & EVAL_EVALUATE);
|
|
|
|
while (*argcount < MAX_FUNC_ARGS - partial_argc)
|
|
{
|
|
// skip the '(' or ',' and possibly line breaks
|
|
argp = skipwhite_and_linebreak(argp + 1, evalarg);
|
|
|
|
if (*argp == ')' || *argp == ',' || *argp == NUL)
|
|
break;
|
|
|
|
int arg_idx = *argcount;
|
|
if (eval1(&argp, &argvars[arg_idx], evalarg) == FAIL)
|
|
{
|
|
ret = FAIL;
|
|
break;
|
|
}
|
|
++*argcount;
|
|
if (!is_builtin && check_typval_is_value(&argvars[arg_idx]) == FAIL)
|
|
{
|
|
ret = FAIL;
|
|
break;
|
|
}
|
|
|
|
// The comma should come right after the argument, but this wasn't
|
|
// checked previously, thus only enforce it in Vim9 script.
|
|
if (vim9script)
|
|
{
|
|
if (*argp != ',' && *skipwhite(argp) == ',')
|
|
{
|
|
if (evaluate)
|
|
semsg(_(e_no_white_space_allowed_before_str_str),
|
|
",", argp);
|
|
ret = FAIL;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
argp = skipwhite(argp);
|
|
if (*argp != ',')
|
|
break;
|
|
if (vim9script && !IS_WHITE_NL_OR_NUL(argp[1]))
|
|
{
|
|
if (evaluate)
|
|
semsg(_(e_white_space_required_after_str_str), ",", argp);
|
|
ret = FAIL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
argp = skipwhite_and_linebreak(argp, evalarg);
|
|
if (*argp == ')')
|
|
++argp;
|
|
else
|
|
ret = FAIL;
|
|
*arg = argp;
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Call a function and put the result in "rettv".
|
|
* Return OK or FAIL.
|
|
*/
|
|
int
|
|
get_func_tv(
|
|
char_u *name, // name of the function
|
|
int len, // length of "name" or -1 to use strlen()
|
|
typval_T *rettv,
|
|
char_u **arg, // argument, pointing to the '('
|
|
evalarg_T *evalarg, // for line continuation
|
|
funcexe_T *funcexe) // various values
|
|
{
|
|
char_u *argp;
|
|
int ret;
|
|
typval_T argvars[MAX_FUNC_ARGS + 1]; // vars for arguments
|
|
int argcount = 0; // number of arguments found
|
|
int vim9script = in_vim9script();
|
|
int evaluate = evalarg == NULL
|
|
? FALSE : (evalarg->eval_flags & EVAL_EVALUATE);
|
|
|
|
argp = *arg;
|
|
ret = get_func_arguments(&argp, evalarg,
|
|
(funcexe->fe_partial == NULL ? 0 : funcexe->fe_partial->pt_argc),
|
|
argvars, &argcount, builtin_function(name, -1));
|
|
|
|
if (ret == OK)
|
|
{
|
|
int i = 0;
|
|
int did_emsg_before = did_emsg;
|
|
|
|
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, 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, funcexe);
|
|
if (vim9script && did_emsg > did_emsg_before)
|
|
{
|
|
// An error in a builtin function does not return FAIL, but we do
|
|
// want to abort further processing if an error was given.
|
|
ret = FAIL;
|
|
clear_tv(rettv);
|
|
}
|
|
|
|
funcargs.ga_len -= i;
|
|
}
|
|
else if (!aborting() && evaluate)
|
|
{
|
|
if (argcount == MAX_FUNC_ARGS)
|
|
emsg_funcname(e_too_many_arguments_for_function_str_2, name);
|
|
else
|
|
emsg_funcname(e_invalid_arguments_for_function_str, name);
|
|
}
|
|
|
|
while (--argcount >= 0)
|
|
clear_tv(&argvars[argcount]);
|
|
|
|
if (vim9script)
|
|
*arg = argp;
|
|
else
|
|
*arg = skipwhite(argp);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* 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
|
|
* and set "tofree".
|
|
*/
|
|
char_u *
|
|
fname_trans_sid(
|
|
char_u *name,
|
|
char_u *fname_buf,
|
|
char_u **tofree,
|
|
funcerror_T *error)
|
|
{
|
|
char_u *script_name;
|
|
char_u *fname;
|
|
size_t fnamelen;
|
|
size_t fname_buflen;
|
|
|
|
script_name = name + eval_fname_script(name);
|
|
if (script_name == name)
|
|
return name; // no prefix
|
|
|
|
fname_buf[0] = K_SPECIAL;
|
|
fname_buf[1] = KS_EXTRA;
|
|
fname_buf[2] = (int)KE_SNR;
|
|
fname_buflen = 3;
|
|
if (!eval_fname_sid(name)) // "<SID>" or "s:"
|
|
fname_buf[fname_buflen] = NUL;
|
|
else
|
|
{
|
|
if (current_sctx.sc_sid <= 0)
|
|
*error = FCERR_SCRIPT;
|
|
else
|
|
{
|
|
fname_buflen += vim_snprintf((char *)fname_buf + 3,
|
|
FLEN_FIXED - 3,
|
|
"%ld_",
|
|
(long)current_sctx.sc_sid);
|
|
}
|
|
}
|
|
fnamelen = fname_buflen + STRLEN(script_name);
|
|
if (fnamelen < FLEN_FIXED)
|
|
{
|
|
STRCPY(fname_buf + fname_buflen, script_name);
|
|
fname = fname_buf;
|
|
}
|
|
else
|
|
{
|
|
fname = alloc(fnamelen + 1);
|
|
if (fname == NULL)
|
|
*error = FCERR_OTHER;
|
|
else
|
|
{
|
|
*tofree = fname;
|
|
vim_snprintf((char *)fname, fnamelen + 1, "%s%s", fname_buf, script_name);
|
|
}
|
|
}
|
|
return fname;
|
|
}
|
|
|
|
/*
|
|
* Concatenate the script ID and function name into "<SNR>99_name".
|
|
* "buffer" must have size MAX_FUNC_NAME_LEN.
|
|
*/
|
|
void
|
|
func_name_with_sid(char_u *name, int sid, char_u *buffer)
|
|
{
|
|
// A script-local function is stored as "<SNR>99_name".
|
|
buffer[0] = K_SPECIAL;
|
|
buffer[1] = KS_EXTRA;
|
|
buffer[2] = (int)KE_SNR;
|
|
vim_snprintf((char *)buffer + 3, MAX_FUNC_NAME_LEN - 3, "%ld_%s",
|
|
(long)sid, name);
|
|
}
|
|
|
|
/*
|
|
* Find a function "name" in script "sid".
|
|
*/
|
|
static ufunc_T *
|
|
find_func_with_sid(char_u *name, int sid)
|
|
{
|
|
hashitem_T *hi;
|
|
char_u buffer[MAX_FUNC_NAME_LEN];
|
|
|
|
if (!SCRIPT_ID_VALID(sid))
|
|
return NULL; // not in a script
|
|
|
|
func_name_with_sid(name, sid, buffer);
|
|
hi = hash_find(&func_hashtab, buffer);
|
|
if (!HASHITEM_EMPTY(hi))
|
|
return HI2UF(hi);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Find a function "name" in script "sid" prefixing the autoload prefix.
|
|
*/
|
|
static ufunc_T *
|
|
find_func_with_prefix(char_u *name, int sid)
|
|
{
|
|
hashitem_T *hi;
|
|
char_u buffer[MAX_FUNC_NAME_LEN];
|
|
scriptitem_T *si;
|
|
|
|
if (vim_strchr(name, AUTOLOAD_CHAR) != NULL)
|
|
return NULL; // already has the prefix
|
|
if (!SCRIPT_ID_VALID(sid))
|
|
return NULL; // not in a script
|
|
si = SCRIPT_ITEM(sid);
|
|
if (si->sn_autoload_prefix != NULL)
|
|
{
|
|
size_t len = STRLEN(si->sn_autoload_prefix) + STRLEN(name) + 1;
|
|
char_u *auto_name;
|
|
char_u *namep;
|
|
|
|
// skip a "<SNR>99_" prefix
|
|
namep = untrans_function_name(name);
|
|
if (namep == NULL)
|
|
namep = name;
|
|
|
|
// An exported function in an autoload script is stored as
|
|
// "dir#path#name".
|
|
if (len < sizeof(buffer))
|
|
auto_name = buffer;
|
|
else
|
|
auto_name = alloc(len);
|
|
if (auto_name != NULL)
|
|
{
|
|
vim_snprintf((char *)auto_name, len, "%s%s",
|
|
si->sn_autoload_prefix, namep);
|
|
hi = hash_find(&func_hashtab, auto_name);
|
|
if (auto_name != buffer)
|
|
vim_free(auto_name);
|
|
if (!HASHITEM_EMPTY(hi))
|
|
return HI2UF(hi);
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Find a function by name, return pointer to it in ufuncs.
|
|
* When "flags" has FFED_IS_GLOBAL don't find script-local or imported
|
|
* functions.
|
|
* When "flags" has "FFED_NO_GLOBAL" don't find global functions.
|
|
* Return NULL for unknown function.
|
|
*/
|
|
ufunc_T *
|
|
find_func_even_dead(char_u *name, int flags)
|
|
{
|
|
hashitem_T *hi;
|
|
ufunc_T *func;
|
|
|
|
if ((flags & FFED_IS_GLOBAL) == 0)
|
|
{
|
|
// Find script-local function before global one.
|
|
if (in_vim9script() && eval_isnamec1(*name)
|
|
&& (name[1] != ':' || *name == 's'))
|
|
{
|
|
func = find_func_with_sid(name[0] == 's' && name[1] == ':'
|
|
? name + 2 : name, current_sctx.sc_sid);
|
|
if (func != NULL)
|
|
return func;
|
|
}
|
|
if (in_vim9script() && STRNCMP(name, "<SNR>", 5) == 0)
|
|
{
|
|
char_u *p = name + 5;
|
|
long sid;
|
|
|
|
// printable "<SNR>123_Name" form
|
|
sid = getdigits(&p);
|
|
if (*p == '_')
|
|
{
|
|
func = find_func_with_sid(p + 1, (int)sid);
|
|
if (func != NULL)
|
|
return func;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((flags & FFED_NO_GLOBAL) == 0)
|
|
{
|
|
hi = hash_find(&func_hashtab,
|
|
STRNCMP(name, "g:", 2) == 0 ? name + 2 : name);
|
|
if (!HASHITEM_EMPTY(hi))
|
|
return HI2UF(hi);
|
|
}
|
|
|
|
// Find autoload function if this is an autoload script.
|
|
return find_func_with_prefix(name[0] == 's' && name[1] == ':'
|
|
? name + 2 : name, current_sctx.sc_sid);
|
|
}
|
|
|
|
/*
|
|
* Find a function by name, return pointer to it in ufuncs.
|
|
* "cctx" is passed in a :def function to find imported functions.
|
|
* Return NULL for unknown or dead function.
|
|
*/
|
|
ufunc_T *
|
|
find_func(char_u *name, int is_global)
|
|
{
|
|
ufunc_T *fp = find_func_even_dead(name, is_global ? FFED_IS_GLOBAL : 0);
|
|
|
|
if (fp != NULL && (fp->uf_flags & FC_DEAD) == 0)
|
|
return fp;
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if "ufunc" is a global function.
|
|
*/
|
|
int
|
|
func_is_global(ufunc_T *ufunc)
|
|
{
|
|
return ufunc->uf_name[0] != K_SPECIAL;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if "ufunc" must be called with a g: prefix in Vim9 script.
|
|
*/
|
|
int
|
|
func_requires_g_prefix(ufunc_T *ufunc)
|
|
{
|
|
return func_is_global(ufunc)
|
|
&& (ufunc->uf_flags & FC_LAMBDA) == 0
|
|
&& vim_strchr(ufunc->uf_name, AUTOLOAD_CHAR) == NULL
|
|
&& !SAFE_isdigit(ufunc->uf_name[0]);
|
|
}
|
|
|
|
/*
|
|
* 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 int
|
|
cat_func_name(char_u *buf, size_t bufsize, ufunc_T *fp)
|
|
{
|
|
int len;
|
|
|
|
if (!func_is_global(fp))
|
|
len = vim_snprintf((char *)buf, bufsize, "<SNR>%s", fp->uf_name + 3);
|
|
else
|
|
len = vim_snprintf((char *)buf, bufsize, "%s", fp->uf_name);
|
|
|
|
return (len >= (int)bufsize) ? (int)bufsize - 1 : len;
|
|
}
|
|
|
|
/*
|
|
* 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), "add variable");
|
|
v->di_tv.v_type = VAR_NUMBER;
|
|
v->di_tv.v_lock = VAR_FIXED;
|
|
v->di_tv.vval.v_number = nr;
|
|
}
|
|
|
|
/*
|
|
* Free "fc".
|
|
*/
|
|
static void
|
|
free_funccal(funccall_T *fc)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < fc->fc_ufuncs.ga_len; ++i)
|
|
{
|
|
ufunc_T *fp = ((ufunc_T **)(fc->fc_ufuncs.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_ufuncs);
|
|
|
|
func_ptr_unref(fc->fc_func);
|
|
vim_free(fc);
|
|
}
|
|
|
|
/*
|
|
* Free "fc" and what it contains.
|
|
* Can be called only when "fc" is kept beyond the period of it called,
|
|
* i.e. after cleanup_function_call(fc).
|
|
*/
|
|
static void
|
|
free_funccal_contents(funccall_T *fc)
|
|
{
|
|
listitem_T *li;
|
|
|
|
// Free all l: variables.
|
|
vars_clear(&fc->fc_l_vars.dv_hashtab);
|
|
|
|
// Free all a: variables.
|
|
vars_clear(&fc->fc_l_avars.dv_hashtab);
|
|
|
|
// Free the a:000 variables.
|
|
FOR_ALL_LIST_ITEMS(&fc->fc_l_varlist, li)
|
|
clear_tv(&li->li_tv);
|
|
|
|
free_funccal(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)
|
|
{
|
|
int may_free_fc = fc->fc_refcount <= 0;
|
|
int free_fc = TRUE;
|
|
|
|
current_funccal = fc->fc_caller;
|
|
|
|
// Free all l: variables if not referred.
|
|
if (may_free_fc && fc->fc_l_vars.dv_refcount == DO_NOT_FREE_CNT)
|
|
vars_clear(&fc->fc_l_vars.dv_hashtab);
|
|
else
|
|
free_fc = FALSE;
|
|
|
|
// 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 (may_free_fc && fc->fc_l_avars.dv_refcount == DO_NOT_FREE_CNT)
|
|
vars_clear_ext(&fc->fc_l_avars.dv_hashtab, FALSE);
|
|
else
|
|
{
|
|
int todo;
|
|
hashitem_T *hi;
|
|
dictitem_T *di;
|
|
|
|
free_fc = FALSE;
|
|
|
|
// Make a copy of the a: variables, since we didn't do that above.
|
|
todo = (int)fc->fc_l_avars.dv_hashtab.ht_used;
|
|
FOR_ALL_HASHTAB_ITEMS(&fc->fc_l_avars.dv_hashtab, hi, todo)
|
|
{
|
|
if (!HASHITEM_EMPTY(hi))
|
|
{
|
|
--todo;
|
|
di = HI2DI(hi);
|
|
copy_tv(&di->di_tv, &di->di_tv);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (may_free_fc && fc->fc_l_varlist.lv_refcount == DO_NOT_FREE_CNT)
|
|
fc->fc_l_varlist.lv_first = NULL;
|
|
else
|
|
{
|
|
listitem_T *li;
|
|
|
|
free_fc = FALSE;
|
|
|
|
// Make a copy of the a:000 items, since we didn't do that above.
|
|
FOR_ALL_LIST_ITEMS(&fc->fc_l_varlist, li)
|
|
copy_tv(&li->li_tv, &li->li_tv);
|
|
}
|
|
|
|
if (free_fc)
|
|
free_funccal(fc);
|
|
else
|
|
{
|
|
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->fc_caller = previous_funccal;
|
|
previous_funccal = fc;
|
|
|
|
if (want_garbage_collect)
|
|
// If garbage collector is ready, clear count.
|
|
made_copy = 0;
|
|
else if (++made_copy >= (int)((4096 * 1024) / sizeof(*fc)))
|
|
{
|
|
// We have made a lot of copies, worth 4 Mbyte. 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if "name" is a numbered function, ignoring a "g:" prefix.
|
|
*/
|
|
static int
|
|
numbered_function(char_u *name)
|
|
{
|
|
return SAFE_isdigit(*name)
|
|
|| (name[0] == 'g' && name[1] == ':' && SAFE_isdigit(name[2]));
|
|
}
|
|
|
|
/*
|
|
* There are two kinds of function names:
|
|
* 1. ordinary names, function defined with :function or :def;
|
|
* can start with "<SNR>123_" literally or with K_SPECIAL.
|
|
* 2. Numbered functions and lambdas: "<lambda>123"
|
|
* 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.
|
|
*/
|
|
int
|
|
func_name_refcount(char_u *name)
|
|
{
|
|
return numbered_function(name) || (name[0] == '<' && name[1] == 'l');
|
|
}
|
|
|
|
/*
|
|
* 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->fc_l_varlist.lv_refcount == DO_NOT_FREE_CNT
|
|
&& fc->fc_l_vars.dv_refcount == DO_NOT_FREE_CNT
|
|
&& fc->fc_l_avars.dv_refcount == DO_NOT_FREE_CNT)))
|
|
for (pfc = &previous_funccal; *pfc != NULL; pfc = &(*pfc)->fc_caller)
|
|
{
|
|
if (fc == *pfc)
|
|
{
|
|
*pfc = fc->fc_caller;
|
|
free_funccal_contents(fc);
|
|
return;
|
|
}
|
|
}
|
|
for (i = 0; i < fc->fc_ufuncs.ga_len; ++i)
|
|
if (((ufunc_T **)(fc->fc_ufuncs.ga_data))[i] == fp)
|
|
((ufunc_T **)(fc->fc_ufuncs.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;
|
|
|
|
// Return if it was already virtually deleted.
|
|
if (fp->uf_flags & FC_DEAD)
|
|
return FALSE;
|
|
|
|
hi = hash_find(&func_hashtab, UF2HIKEY(fp));
|
|
if (HASHITEM_EMPTY(hi))
|
|
return FALSE;
|
|
|
|
// When there is a def-function index do not actually remove the
|
|
// function, so we can find the index when defining the function again.
|
|
// Do remove it when it's a copy.
|
|
if (fp->uf_def_status == UF_COMPILED && (fp->uf_flags & FC_COPY) == 0)
|
|
{
|
|
fp->uf_flags |= FC_DEAD;
|
|
return FALSE;
|
|
}
|
|
hash_remove(&func_hashtab, hi, "remove function");
|
|
fp->uf_flags |= FC_DELETED;
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
func_clear_items(ufunc_T *fp)
|
|
{
|
|
ga_clear_strings(&(fp->uf_args));
|
|
ga_clear_strings(&(fp->uf_def_args));
|
|
ga_clear_strings(&(fp->uf_lines));
|
|
VIM_CLEAR(fp->uf_arg_types);
|
|
VIM_CLEAR(fp->uf_block_ids);
|
|
VIM_CLEAR(fp->uf_va_name);
|
|
clear_func_type_list(&fp->uf_type_list, &fp->uf_func_type);
|
|
|
|
// Increment the refcount of this function to avoid it being freed
|
|
// recursively when the partial is freed.
|
|
fp->uf_refcount += 3;
|
|
partial_unref(fp->uf_partial);
|
|
fp->uf_partial = NULL;
|
|
fp->uf_refcount -= 3;
|
|
|
|
#ifdef FEAT_LUA
|
|
if (fp->uf_cb_free != NULL)
|
|
{
|
|
fp->uf_cb_free(fp->uf_cb_state);
|
|
fp->uf_cb_free = NULL;
|
|
}
|
|
|
|
fp->uf_cb_state = NULL;
|
|
fp->uf_cb = NULL;
|
|
#endif
|
|
#ifdef FEAT_PROFILE
|
|
VIM_CLEAR(fp->uf_tml_count);
|
|
VIM_CLEAR(fp->uf_tml_total);
|
|
VIM_CLEAR(fp->uf_tml_self);
|
|
#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);
|
|
unlink_def_function(fp);
|
|
}
|
|
|
|
/*
|
|
* Free a function and remove it from the list of functions. Does not free
|
|
* what a function contains, call func_clear() first.
|
|
* When "force" is TRUE we are exiting.
|
|
* Returns OK when the function was actually freed.
|
|
*/
|
|
static int
|
|
func_free(ufunc_T *fp, int force)
|
|
{
|
|
// Only remove it when not done already, otherwise we would remove a newer
|
|
// version of the function with the same name.
|
|
if ((fp->uf_flags & (FC_DELETED | FC_REMOVED)) == 0)
|
|
func_remove(fp);
|
|
|
|
if ((fp->uf_flags & FC_DEAD) == 0 || force)
|
|
{
|
|
if (fp->uf_dfunc_idx > 0)
|
|
unlink_def_function(fp);
|
|
VIM_CLEAR(fp->uf_name_exp);
|
|
vim_free(fp);
|
|
return OK;
|
|
}
|
|
return FAIL;
|
|
}
|
|
|
|
/*
|
|
* Free all things that a function contains and free the function itself.
|
|
* When "force" is TRUE we are exiting.
|
|
*/
|
|
void
|
|
func_clear_free(ufunc_T *fp, int force)
|
|
{
|
|
func_clear(fp, force);
|
|
if (force || fp->uf_dfunc_idx == 0 || func_name_refcount(fp->uf_name)
|
|
|| (fp->uf_flags & FC_COPY))
|
|
func_free(fp, force);
|
|
else
|
|
fp->uf_flags |= FC_DEAD;
|
|
}
|
|
|
|
/*
|
|
* Copy already defined function "lambda" to a new function with name "global".
|
|
* This is for when a compiled function defines a global function.
|
|
*/
|
|
int
|
|
copy_lambda_to_global_func(
|
|
char_u *lambda,
|
|
char_u *global,
|
|
loopvarinfo_T *loopvarinfo,
|
|
ectx_T *ectx)
|
|
{
|
|
ufunc_T *ufunc = find_func_even_dead(lambda, FFED_IS_GLOBAL);
|
|
ufunc_T *fp = NULL;
|
|
|
|
if (ufunc == NULL)
|
|
{
|
|
semsg(_(e_lambda_function_not_found_str), lambda);
|
|
return FAIL;
|
|
}
|
|
|
|
fp = find_func(global, TRUE);
|
|
if (fp != NULL)
|
|
{
|
|
// TODO: handle ! to overwrite
|
|
semsg(_(e_function_str_already_exists_add_bang_to_replace), global);
|
|
return FAIL;
|
|
}
|
|
|
|
fp = alloc_ufunc(global, STRLEN(global));
|
|
if (fp == NULL)
|
|
return FAIL;
|
|
|
|
fp->uf_varargs = ufunc->uf_varargs;
|
|
fp->uf_flags = (ufunc->uf_flags & ~FC_VIM9) | FC_COPY;
|
|
fp->uf_def_status = ufunc->uf_def_status;
|
|
fp->uf_dfunc_idx = ufunc->uf_dfunc_idx;
|
|
if (ga_copy_strings(&ufunc->uf_args, &fp->uf_args) == FAIL
|
|
|| ga_copy_strings(&ufunc->uf_def_args, &fp->uf_def_args)
|
|
== FAIL
|
|
|| ga_copy_strings(&ufunc->uf_lines, &fp->uf_lines) == FAIL)
|
|
goto failed;
|
|
|
|
if (ufunc->uf_arg_types != NULL)
|
|
{
|
|
fp->uf_arg_types = ALLOC_MULT(type_T *, fp->uf_args.ga_len);
|
|
if (fp->uf_arg_types == NULL)
|
|
goto failed;
|
|
mch_memmove(fp->uf_arg_types, ufunc->uf_arg_types,
|
|
sizeof(type_T *) * fp->uf_args.ga_len);
|
|
}
|
|
if (ufunc->uf_va_name != NULL)
|
|
{
|
|
fp->uf_va_name = vim_strsave(ufunc->uf_va_name);
|
|
if (fp->uf_va_name == NULL)
|
|
goto failed;
|
|
}
|
|
fp->uf_ret_type = ufunc->uf_ret_type;
|
|
|
|
fp->uf_refcount = 1;
|
|
|
|
hash_add(&func_hashtab, UF2HIKEY(fp), "copy lambda");
|
|
|
|
// the referenced dfunc_T is now used one more time
|
|
link_def_function(fp);
|
|
|
|
// Create a partial to store the context of the function where it was
|
|
// instantiated. Only needs to be done once. Do this on the original
|
|
// function, "dfunc->df_ufunc" will point to it.
|
|
if ((ufunc->uf_flags & FC_CLOSURE) && ufunc->uf_partial == NULL)
|
|
{
|
|
partial_T *pt = ALLOC_CLEAR_ONE(partial_T);
|
|
|
|
if (pt == NULL)
|
|
goto failed;
|
|
if (fill_partial_and_closure(pt, ufunc, loopvarinfo, ectx) == FAIL)
|
|
{
|
|
vim_free(pt);
|
|
goto failed;
|
|
}
|
|
ufunc->uf_partial = pt;
|
|
}
|
|
|
|
return OK;
|
|
|
|
failed:
|
|
func_clear_free(fp, TRUE);
|
|
return FAIL;
|
|
}
|
|
|
|
static int funcdepth = 0;
|
|
|
|
/*
|
|
* Increment the function call depth count.
|
|
* Return FAIL when going over 'maxfuncdepth'.
|
|
* Otherwise return OK, must call funcdepth_decrement() later!
|
|
*/
|
|
int
|
|
funcdepth_increment(void)
|
|
{
|
|
if (funcdepth >= p_mfd)
|
|
{
|
|
emsg(_(e_function_call_depth_is_higher_than_macfuncdepth));
|
|
return FAIL;
|
|
}
|
|
++funcdepth;
|
|
return OK;
|
|
}
|
|
|
|
void
|
|
funcdepth_decrement(void)
|
|
{
|
|
--funcdepth;
|
|
}
|
|
|
|
/*
|
|
* Get the current function call depth.
|
|
*/
|
|
int
|
|
funcdepth_get(void)
|
|
{
|
|
return funcdepth;
|
|
}
|
|
|
|
/*
|
|
* Restore the function call depth. This is for cases where there is no
|
|
* guarantee funcdepth_decrement() can be called exactly the same number of
|
|
* times as funcdepth_increment().
|
|
*/
|
|
void
|
|
funcdepth_restore(int depth)
|
|
{
|
|
funcdepth = depth;
|
|
}
|
|
|
|
/*
|
|
* Allocate a funccall_T, link it in current_funccal and fill in "fp" and
|
|
* "rettv".
|
|
* Must be followed by one call to remove_funccal() or cleanup_function_call().
|
|
* Returns NULL when allocation fails.
|
|
*/
|
|
funccall_T *
|
|
create_funccal(ufunc_T *fp, typval_T *rettv)
|
|
{
|
|
funccall_T *fc = ALLOC_CLEAR_ONE(funccall_T);
|
|
|
|
if (fc == NULL)
|
|
return NULL;
|
|
fc->fc_caller = current_funccal;
|
|
current_funccal = fc;
|
|
fc->fc_func = fp;
|
|
func_ptr_ref(fp);
|
|
fc->fc_rettv = rettv;
|
|
return fc;
|
|
}
|
|
|
|
/*
|
|
* To be called when returning from a compiled function; restores
|
|
* current_funccal.
|
|
*/
|
|
void
|
|
remove_funccal(void)
|
|
{
|
|
funccall_T *fc = current_funccal;
|
|
|
|
current_funccal = fc->fc_caller;
|
|
free_funccal(fc);
|
|
}
|
|
|
|
/*
|
|
* Call a user function.
|
|
*/
|
|
static funcerror_T
|
|
call_user_func(
|
|
ufunc_T *fp, // pointer to function
|
|
int argcount, // nr of args
|
|
typval_T *argvars, // arguments
|
|
typval_T *rettv, // return value
|
|
funcexe_T *funcexe, // context
|
|
dict_T *selfdict) // Dictionary for "self"
|
|
{
|
|
sctx_T save_current_sctx;
|
|
ectx_T *save_current_ectx;
|
|
int using_sandbox = FALSE;
|
|
int save_sticky_cmdmod_flags = sticky_cmdmod_flags;
|
|
funccall_T *fc;
|
|
int save_did_emsg;
|
|
funcerror_T retval = FCERR_NONE;
|
|
int default_arg_err = FALSE;
|
|
dictitem_T *v;
|
|
int fixvar_idx = 0; // index in fc_fixvar[]
|
|
int i;
|
|
int ai;
|
|
int islambda = FALSE;
|
|
char_u numbuf[NUMBUFLEN];
|
|
char_u *name;
|
|
size_t namelen;
|
|
typval_T *tv_to_free[MAX_FUNC_ARGS];
|
|
int tv_to_free_len = 0;
|
|
#ifdef FEAT_PROFILE
|
|
profinfo_T profile_info;
|
|
#endif
|
|
ESTACK_CHECK_DECLARATION;
|
|
|
|
#ifdef FEAT_PROFILE
|
|
CLEAR_FIELD(profile_info);
|
|
#endif
|
|
|
|
// If depth of calling is getting too high, don't execute the function.
|
|
if (funcdepth_increment() == FAIL)
|
|
{
|
|
rettv->v_type = VAR_NUMBER;
|
|
rettv->vval.v_number = -1;
|
|
return FCERR_FAILED;
|
|
}
|
|
|
|
line_breakcheck(); // check for CTRL-C hit
|
|
|
|
fc = create_funccal(fp, rettv);
|
|
if (fc == NULL)
|
|
return FCERR_OTHER;
|
|
fc->fc_level = ex_nesting_level;
|
|
// Check if this function has a breakpoint.
|
|
fc->fc_breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, (linenr_T)0);
|
|
fc->fc_dbg_tick = debug_tick;
|
|
// Set up fields for closure.
|
|
ga_init2(&fc->fc_ufuncs, sizeof(ufunc_T *), 1);
|
|
|
|
if (fp->uf_def_status != UF_NOT_COMPILED)
|
|
{
|
|
#ifdef FEAT_PROFILE
|
|
ufunc_T *caller = fc->fc_caller == NULL ? NULL : fc->fc_caller->fc_func;
|
|
#endif
|
|
// Execute the function, possibly compiling it first.
|
|
#ifdef FEAT_PROFILE
|
|
if (do_profiling == PROF_YES)
|
|
profile_may_start_func(&profile_info, fp, caller);
|
|
#endif
|
|
sticky_cmdmod_flags = 0;
|
|
if (call_def_function(fp, argcount, argvars, 0,
|
|
funcexe->fe_partial, funcexe->fe_object, fc, rettv) == FAIL)
|
|
retval = FCERR_FAILED;
|
|
funcdepth_decrement();
|
|
#ifdef FEAT_PROFILE
|
|
if (do_profiling == PROF_YES && (fp->uf_profiling
|
|
|| (caller != NULL && caller->uf_profiling)))
|
|
profile_may_end_func(&profile_info, fp, caller);
|
|
#endif
|
|
remove_funccal();
|
|
sticky_cmdmod_flags = save_sticky_cmdmod_flags;
|
|
return retval;
|
|
}
|
|
|
|
islambda = fp->uf_flags & FC_LAMBDA;
|
|
|
|
/*
|
|
* Note about using fc->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->fc_l_vars, &fc->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->fc_fixvar[fixvar_idx++].var;
|
|
name = v->di_key;
|
|
STRCPY(name, "self");
|
|
v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
|
|
hash_add(&fc->fc_l_vars.dv_hashtab, DI2HIKEY(v), "set self dictionary");
|
|
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, unless none found (in lambda).
|
|
* Set a:0 to "argcount" less number of named arguments, if >= 0.
|
|
* Set a:000 to a list with room for the "..." arguments.
|
|
*/
|
|
init_var_dict(&fc->fc_l_avars, &fc->fc_l_avars_var, VAR_SCOPE);
|
|
if ((fp->uf_flags & FC_NOARGS) == 0)
|
|
add_nr_var(&fc->fc_l_avars, &fc->fc_fixvar[fixvar_idx++].var, "0",
|
|
(varnumber_T)(argcount >= fp->uf_args.ga_len
|
|
? argcount - fp->uf_args.ga_len : 0));
|
|
fc->fc_l_avars.dv_lock = VAR_FIXED;
|
|
if ((fp->uf_flags & FC_NOARGS) == 0)
|
|
{
|
|
// Use "name" to avoid a warning from some compiler that checks the
|
|
// destination size.
|
|
v = &fc->fc_fixvar[fixvar_idx++].var;
|
|
name = v->di_key;
|
|
STRCPY(name, "000");
|
|
v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
|
|
hash_add(&fc->fc_l_avars.dv_hashtab, DI2HIKEY(v), "function argument");
|
|
v->di_tv.v_type = VAR_LIST;
|
|
v->di_tv.v_lock = VAR_FIXED;
|
|
v->di_tv.vval.v_list = &fc->fc_l_varlist;
|
|
}
|
|
CLEAR_FIELD(fc->fc_l_varlist);
|
|
fc->fc_l_varlist.lv_refcount = DO_NOT_FREE_CNT;
|
|
fc->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.
|
|
* Skipped when no a: variables used (in lambda).
|
|
*/
|
|
if ((fp->uf_flags & FC_NOARGS) == 0)
|
|
{
|
|
add_nr_var(&fc->fc_l_avars, &fc->fc_fixvar[fixvar_idx++].var,
|
|
"firstline", (varnumber_T)funcexe->fe_firstline);
|
|
add_nr_var(&fc->fc_l_avars, &fc->fc_fixvar[fixvar_idx++].var,
|
|
"lastline", (varnumber_T)funcexe->fe_lastline);
|
|
}
|
|
for (i = 0; i < argcount || i < fp->uf_args.ga_len; ++i)
|
|
{
|
|
int addlocal = FALSE;
|
|
typval_T def_rettv;
|
|
int isdefault = FALSE;
|
|
|
|
ai = i - fp->uf_args.ga_len;
|
|
if (ai < 0)
|
|
{
|
|
// named argument a:name
|
|
name = FUNCARG(fp, i);
|
|
if (islambda)
|
|
addlocal = TRUE;
|
|
|
|
// evaluate named argument default expression
|
|
isdefault = ai + fp->uf_def_args.ga_len >= 0
|
|
&& (i >= argcount || (argvars[i].v_type == VAR_SPECIAL
|
|
&& argvars[i].vval.v_number == VVAL_NONE));
|
|
if (isdefault)
|
|
{
|
|
char_u *default_expr = NULL;
|
|
|
|
def_rettv.v_type = VAR_NUMBER;
|
|
def_rettv.vval.v_number = -1;
|
|
|
|
default_expr = ((char_u **)(fp->uf_def_args.ga_data))
|
|
[ai + fp->uf_def_args.ga_len];
|
|
if (eval1(&default_expr, &def_rettv, &EVALARG_EVALUATE) == FAIL)
|
|
{
|
|
default_arg_err = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
namelen = STRLEN(name);
|
|
}
|
|
else
|
|
{
|
|
if ((fp->uf_flags & FC_NOARGS) != 0)
|
|
// Bail out if no a: arguments used (in lambda).
|
|
break;
|
|
|
|
// "..." argument a:1, a:2, etc.
|
|
namelen = vim_snprintf((char *)numbuf, sizeof(numbuf), "%d", ai + 1);
|
|
name = numbuf;
|
|
}
|
|
if (fixvar_idx < FIXVAR_CNT && namelen <= VAR_SHORT_LEN)
|
|
{
|
|
v = &fc->fc_fixvar[fixvar_idx++].var;
|
|
v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
|
|
STRCPY(v->di_key, name);
|
|
}
|
|
else
|
|
{
|
|
v = dictitem_alloc(name);
|
|
if (v == NULL)
|
|
break;
|
|
v->di_flags |= DI_FLAGS_RO | DI_FLAGS_FIX;
|
|
}
|
|
|
|
// Note: the values are copied directly to avoid alloc/free.
|
|
// "argvars" must have VAR_FIXED for v_lock.
|
|
v->di_tv = isdefault ? def_rettv : argvars[i];
|
|
v->di_tv.v_lock = VAR_FIXED;
|
|
|
|
if (isdefault)
|
|
// Need to free this later, no matter where it's stored.
|
|
tv_to_free[tv_to_free_len++] = &v->di_tv;
|
|
|
|
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->fc_l_vars.dv_hashtab, DI2HIKEY(v), "local variable");
|
|
}
|
|
else
|
|
hash_add(&fc->fc_l_avars.dv_hashtab, DI2HIKEY(v), "add variable");
|
|
|
|
if (ai >= 0 && ai < MAX_FUNC_ARGS)
|
|
{
|
|
listitem_T *li = &fc->fc_l_listitems[ai];
|
|
|
|
li->li_tv = argvars[i];
|
|
li->li_tv.v_lock = VAR_FIXED;
|
|
list_append(&fc->fc_l_varlist, li);
|
|
}
|
|
}
|
|
|
|
// Don't redraw while executing the function.
|
|
++RedrawingDisabled;
|
|
|
|
if (fp->uf_flags & FC_SANDBOX)
|
|
{
|
|
using_sandbox = TRUE;
|
|
++sandbox;
|
|
}
|
|
|
|
estack_push_ufunc(fp, 1);
|
|
ESTACK_CHECK_SETUP;
|
|
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)
|
|
profile_may_start_func(&profile_info, fp,
|
|
fc->fc_caller == NULL ? NULL : fc->fc_caller->fc_func);
|
|
#endif
|
|
|
|
// "legacy" does not apply to commands in the function
|
|
sticky_cmdmod_flags = 0;
|
|
|
|
// If called from a compiled :def function the execution context must be
|
|
// hidden, any deferred functions need to be added to the function being
|
|
// executed here.
|
|
save_current_ectx = clear_current_ectx();
|
|
|
|
save_current_sctx = current_sctx;
|
|
current_sctx = fp->uf_script_ctx;
|
|
save_did_emsg = did_emsg;
|
|
did_emsg = FALSE;
|
|
|
|
if (default_arg_err && (fp->uf_flags & FC_ABORT))
|
|
{
|
|
did_emsg = TRUE;
|
|
retval = FCERR_FAILED;
|
|
}
|
|
else if (islambda)
|
|
{
|
|
char_u *p = *(char_u **)fp->uf_lines.ga_data + 7;
|
|
|
|
// A Lambda always has the command "return {expr}". It is much faster
|
|
// to evaluate {expr} directly.
|
|
++ex_nesting_level;
|
|
(void)eval1(&p, rettv, &EVALARG_EVALUATE);
|
|
--ex_nesting_level;
|
|
}
|
|
else
|
|
// call do_cmdline() to execute the lines
|
|
do_cmdline(NULL, get_func_line, (void *)fc,
|
|
DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT);
|
|
|
|
// Invoke functions added with ":defer".
|
|
handle_defer_one(current_funccal);
|
|
|
|
if (RedrawingDisabled > 0)
|
|
--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;
|
|
|
|
// In corner cases returning a "failed" value is not backwards
|
|
// compatible. Only do this for Vim9 script.
|
|
if (in_vim9script())
|
|
retval = FCERR_FAILED;
|
|
}
|
|
|
|
#ifdef FEAT_PROFILE
|
|
if (do_profiling == PROF_YES)
|
|
{
|
|
ufunc_T *caller = fc->fc_caller == NULL ? NULL : fc->fc_caller->fc_func;
|
|
|
|
if (fp->uf_profiling || (caller != NULL && caller->uf_profiling))
|
|
profile_may_end_func(&profile_info, fp, caller);
|
|
}
|
|
#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->fc_rettv->v_type == VAR_NUMBER)
|
|
smsg(_("%s returning #%ld"), SOURCING_NAME,
|
|
(long)fc->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->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;
|
|
}
|
|
|
|
ESTACK_CHECK_NOW;
|
|
estack_pop();
|
|
current_sctx = save_current_sctx;
|
|
restore_current_ectx(save_current_ectx);
|
|
|
|
#ifdef FEAT_PROFILE
|
|
if (do_profiling == PROF_YES)
|
|
script_prof_restore(&profile_info.pi_wait_start);
|
|
#endif
|
|
if (using_sandbox)
|
|
--sandbox;
|
|
sticky_cmdmod_flags = save_sticky_cmdmod_flags;
|
|
|
|
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;
|
|
funcdepth_decrement();
|
|
for (i = 0; i < tv_to_free_len; ++i)
|
|
clear_tv(tv_to_free[i]);
|
|
cleanup_function_call(fc);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Check the argument count for user function "fp".
|
|
* Return FCERR_UNKNOWN if OK, FCERR_TOOFEW or FCERR_TOOMANY otherwise.
|
|
*/
|
|
funcerror_T
|
|
check_user_func_argcount(ufunc_T *fp, int argcount)
|
|
{
|
|
int regular_args = fp->uf_args.ga_len;
|
|
|
|
if (argcount < regular_args - fp->uf_def_args.ga_len)
|
|
return FCERR_TOOFEW;
|
|
else if (!has_varargs(fp) && argcount > regular_args)
|
|
return FCERR_TOOMANY;
|
|
return FCERR_UNKNOWN;
|
|
}
|
|
|
|
/*
|
|
* Call a user function after checking the arguments.
|
|
*/
|
|
funcerror_T
|
|
call_user_func_check(
|
|
ufunc_T *fp,
|
|
int argcount,
|
|
typval_T *argvars,
|
|
typval_T *rettv,
|
|
funcexe_T *funcexe,
|
|
dict_T *selfdict)
|
|
{
|
|
funcerror_T error = FCERR_NONE;
|
|
|
|
#ifdef FEAT_LUA
|
|
if (fp->uf_flags & FC_CFUNC)
|
|
{
|
|
cfunc_T cb = fp->uf_cb;
|
|
|
|
return (*cb)(argcount, argvars, rettv, fp->uf_cb_state);
|
|
}
|
|
#endif
|
|
|
|
if (fp->uf_flags & FC_RANGE && funcexe->fe_doesrange != NULL)
|
|
*funcexe->fe_doesrange = TRUE;
|
|
error = check_user_func_argcount(fp, argcount);
|
|
if (error != FCERR_UNKNOWN)
|
|
return error;
|
|
|
|
if ((fp->uf_flags & FC_DICT) && selfdict == NULL)
|
|
{
|
|
error = FCERR_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();
|
|
if (!ins_compl_active())
|
|
{
|
|
saveRedobuff(&save_redo);
|
|
did_save_redo = TRUE;
|
|
}
|
|
++fp->uf_calls;
|
|
error = call_user_func(fp, argcount, argvars, rettv, funcexe,
|
|
(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();
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
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)
|
|
internal_error("restore_funccal()");
|
|
else
|
|
{
|
|
current_funccal = funccal_stack->top_funccal;
|
|
funccal_stack = funccal_stack->next;
|
|
}
|
|
}
|
|
|
|
funccall_T *
|
|
get_current_funccal(void)
|
|
{
|
|
return current_funccal;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE when currently at the script level:
|
|
* - not in a function
|
|
* - not executing an autocommand
|
|
* Note that when an autocommand sources a script the result is FALSE;
|
|
*/
|
|
int
|
|
at_script_level(void)
|
|
{
|
|
return current_funccal == NULL && autocmd_match == NULL;
|
|
}
|
|
|
|
/*
|
|
* Mark all functions of script "sid" as deleted.
|
|
*/
|
|
void
|
|
delete_script_functions(int sid)
|
|
{
|
|
hashitem_T *hi;
|
|
ufunc_T *fp;
|
|
long_u todo = 1;
|
|
char_u buf[30];
|
|
size_t len;
|
|
|
|
buf[0] = K_SPECIAL;
|
|
buf[1] = KS_EXTRA;
|
|
buf[2] = (int)KE_SNR;
|
|
len = 3 + vim_snprintf((char *)buf + 3, sizeof(buf) - 3, "%d_", sid);
|
|
|
|
while (todo > 0)
|
|
{
|
|
todo = func_hashtab.ht_used;
|
|
FOR_ALL_HASHTAB_ITEMS(&func_hashtab, hi, todo)
|
|
if (!HASHITEM_EMPTY(hi))
|
|
{
|
|
fp = HI2UF(hi);
|
|
if (STRNCMP(fp->uf_name, buf, len) == 0)
|
|
{
|
|
int changed = func_hashtab.ht_changed;
|
|
|
|
fp->uf_flags |= FC_DEAD;
|
|
|
|
if (fp->uf_calls > 0)
|
|
{
|
|
// Function is executing, don't free it but do remove
|
|
// it from the hashtable.
|
|
if (func_remove(fp))
|
|
fp->uf_refcount--;
|
|
}
|
|
else
|
|
{
|
|
func_clear(fp, TRUE);
|
|
// When clearing a function another function can be
|
|
// cleared as a side effect. When that happens start
|
|
// over.
|
|
if (changed != func_hashtab.ht_changed)
|
|
break;
|
|
}
|
|
}
|
|
--todo;
|
|
}
|
|
}
|
|
}
|
|
|
|
#if defined(EXITFREE) || defined(PROTO)
|
|
void
|
|
free_all_functions(void)
|
|
{
|
|
hashitem_T *hi;
|
|
ufunc_T *fp;
|
|
long_u skipped = 0;
|
|
long_u todo = 1;
|
|
int changed;
|
|
|
|
// Clean up the current_funccal chain and the funccal stack.
|
|
while (current_funccal != NULL)
|
|
{
|
|
clear_tv(current_funccal->fc_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_ALL_HASHTAB_ITEMS(&func_hashtab, hi, todo)
|
|
if (!HASHITEM_EMPTY(hi))
|
|
{
|
|
// clear the def function index now
|
|
fp = HI2UF(hi);
|
|
fp->uf_flags &= ~FC_DEAD;
|
|
fp->uf_def_status = UF_NOT_COMPILED;
|
|
|
|
// Only free functions that are not refcounted, those are
|
|
// supposed to be freed when no longer referenced.
|
|
if (func_name_refcount(fp->uf_name))
|
|
++skipped;
|
|
else
|
|
{
|
|
changed = func_hashtab.ht_changed;
|
|
func_clear(fp, TRUE);
|
|
if (changed != func_hashtab.ht_changed)
|
|
{
|
|
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_ALL_HASHTAB_ITEMS(&func_hashtab, hi, todo)
|
|
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
|
|
{
|
|
if (func_free(fp, FALSE) == OK)
|
|
{
|
|
skipped = 0;
|
|
break;
|
|
}
|
|
// did not actually free it
|
|
++skipped;
|
|
}
|
|
}
|
|
}
|
|
if (skipped == 0)
|
|
hash_clear(&func_hashtab);
|
|
|
|
free_def_functions();
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Return TRUE if "name" looks like a builtin function name: starts with a
|
|
* lower case letter, doesn't contain AUTOLOAD_CHAR or ':', no "." after the
|
|
* name.
|
|
* "len" is the length of "name", or -1 for NUL terminated.
|
|
*/
|
|
int
|
|
builtin_function(char_u *name, int len)
|
|
{
|
|
int i;
|
|
|
|
if (!ASCII_ISLOWER(name[0]) || name[1] == ':')
|
|
return FALSE;
|
|
for (i = 0; name[i] != NUL && (len < 0 || i < len); ++i)
|
|
{
|
|
if (name[i] == AUTOLOAD_CHAR)
|
|
return FALSE;
|
|
if (!eval_isnamec(name[i]))
|
|
{
|
|
// "name.something" is not a builtin function
|
|
if (name[i] == '.')
|
|
return FALSE;
|
|
break;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
func_call(
|
|
char_u *name,
|
|
typval_T *args,
|
|
partial_T *partial,
|
|
dict_T *selfdict,
|
|
typval_T *rettv)
|
|
{
|
|
list_T *l = args->vval.v_list;
|
|
listitem_T *item;
|
|
typval_T argv[MAX_FUNC_ARGS + 1];
|
|
int argc = 0;
|
|
int r = 0;
|
|
|
|
CHECK_LIST_MATERIALIZE(l);
|
|
FOR_ALL_LIST_ITEMS(l, item)
|
|
{
|
|
if (argc == MAX_FUNC_ARGS - (partial == NULL ? 0 : partial->pt_argc))
|
|
{
|
|
emsg(_(e_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)
|
|
{
|
|
funcexe_T funcexe;
|
|
|
|
CLEAR_FIELD(funcexe);
|
|
funcexe.fe_firstline = curwin->w_cursor.lnum;
|
|
funcexe.fe_lastline = curwin->w_cursor.lnum;
|
|
funcexe.fe_evaluate = TRUE;
|
|
funcexe.fe_partial = partial;
|
|
if (partial != NULL)
|
|
{
|
|
funcexe.fe_object = partial->pt_obj;
|
|
if (funcexe.fe_object != NULL)
|
|
++funcexe.fe_object->obj_refcount;
|
|
}
|
|
funcexe.fe_selfdict = selfdict;
|
|
r = call_func(name, -1, rettv, argc, argv, &funcexe);
|
|
}
|
|
|
|
// Free the arguments.
|
|
while (argc > 0)
|
|
clear_tv(&argv[--argc]);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int callback_depth = 0;
|
|
|
|
int
|
|
get_callback_depth(void)
|
|
{
|
|
return callback_depth;
|
|
}
|
|
|
|
/*
|
|
* Invoke call_func() with a callback.
|
|
* Returns FAIL if the callback could not be called.
|
|
*/
|
|
int
|
|
call_callback(
|
|
callback_T *callback,
|
|
int len, // length of "name" or -1 to use strlen()
|
|
typval_T *rettv, // return value goes here
|
|
int argcount, // number of "argvars"
|
|
typval_T *argvars) // vars for arguments, must have "argcount"
|
|
// PLUS ONE elements!
|
|
{
|
|
funcexe_T funcexe;
|
|
int ret;
|
|
|
|
if (callback->cb_name == NULL || *callback->cb_name == NUL)
|
|
return FAIL;
|
|
|
|
if (callback_depth > p_mfd)
|
|
{
|
|
emsg(_(e_command_too_recursive));
|
|
return FAIL;
|
|
}
|
|
|
|
CLEAR_FIELD(funcexe);
|
|
funcexe.fe_evaluate = TRUE;
|
|
funcexe.fe_partial = callback->cb_partial;
|
|
if (callback->cb_partial != NULL)
|
|
{
|
|
funcexe.fe_object = callback->cb_partial->pt_obj;
|
|
if (funcexe.fe_object != NULL)
|
|
++funcexe.fe_object->obj_refcount;
|
|
}
|
|
++callback_depth;
|
|
ret = call_func(callback->cb_name, len, rettv, argcount, argvars, &funcexe);
|
|
--callback_depth;
|
|
|
|
// When a :def function was called that uses :try an error would be turned
|
|
// into an exception. Need to give the error here.
|
|
if (need_rethrow && current_exception != NULL && trylevel == 0)
|
|
{
|
|
need_rethrow = FALSE;
|
|
handle_did_throw();
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* call the 'callback' function and return the result as a number.
|
|
* Returns -2 when calling the function fails. Uses argv[0] to argv[argc - 1]
|
|
* for the function arguments. argv[argc] should have type VAR_UNKNOWN.
|
|
*/
|
|
varnumber_T
|
|
call_callback_retnr(
|
|
callback_T *callback,
|
|
int argcount, // number of "argvars"
|
|
typval_T *argvars) // vars for arguments, must have "argcount"
|
|
// PLUS ONE elements!
|
|
{
|
|
typval_T rettv;
|
|
varnumber_T retval;
|
|
|
|
if (call_callback(callback, -1, &rettv, argcount, argvars) == FAIL)
|
|
return -2;
|
|
|
|
retval = tv_get_number_chk(&rettv, NULL);
|
|
clear_tv(&rettv);
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* Give an error message for the result of a function.
|
|
* Nothing if "error" is FCERR_NONE.
|
|
*/
|
|
void
|
|
user_func_error(funcerror_T error, char_u *name, int found_var)
|
|
{
|
|
switch (error)
|
|
{
|
|
case FCERR_UNKNOWN:
|
|
if (found_var)
|
|
emsg_funcname(e_not_callable_type_str, name);
|
|
else
|
|
emsg_funcname(e_unknown_function_str, name);
|
|
break;
|
|
case FCERR_NOTMETHOD:
|
|
emsg_funcname(e_cannot_use_function_as_method_str, name);
|
|
break;
|
|
case FCERR_DELETED:
|
|
emsg_funcname(e_function_was_deleted_str, name);
|
|
break;
|
|
case FCERR_TOOMANY:
|
|
emsg_funcname(e_too_many_arguments_for_function_str, name);
|
|
break;
|
|
case FCERR_TOOFEW:
|
|
emsg_funcname(e_not_enough_arguments_for_function_str, name);
|
|
break;
|
|
case FCERR_SCRIPT:
|
|
emsg_funcname(e_using_sid_not_in_script_context_str, name);
|
|
break;
|
|
case FCERR_DICT:
|
|
emsg_funcname(e_calling_dict_function_without_dictionary_str,
|
|
name);
|
|
break;
|
|
case FCERR_OTHER:
|
|
case FCERR_FAILED:
|
|
// assume the error message was already given
|
|
break;
|
|
case FCERR_NONE:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Check the argument types "argvars[argcount]" for "name" using the
|
|
* information in "funcexe". When "base_included" then "funcexe->fe_basetv"
|
|
* is already included in "argvars[]".
|
|
* Will do nothing if "funcexe->fe_check_type" is NULL or
|
|
* "funcexe->fe_evaluate" is FALSE;
|
|
* Returns an FCERR_ value.
|
|
*/
|
|
static funcerror_T
|
|
may_check_argument_types(
|
|
funcexe_T *funcexe,
|
|
typval_T *argvars,
|
|
int argcount,
|
|
int base_included,
|
|
char_u *name)
|
|
{
|
|
if (funcexe->fe_check_type != NULL && funcexe->fe_evaluate)
|
|
{
|
|
// Check that the argument types are OK for the types of the funcref.
|
|
if (check_argument_types(funcexe->fe_check_type,
|
|
argvars, argcount,
|
|
base_included ? NULL : funcexe->fe_basetv,
|
|
name) == FAIL)
|
|
return FCERR_OTHER;
|
|
}
|
|
return FCERR_NONE;
|
|
}
|
|
|
|
/*
|
|
* Call a function with its resolved parameters
|
|
*
|
|
* Return FAIL when the function can't be called, OK otherwise.
|
|
* Also returns OK when an error was encountered while executing the function.
|
|
*/
|
|
int
|
|
call_func(
|
|
char_u *funcname, // name of the function
|
|
int len, // length of "name" or -1 to use strlen()
|
|
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!
|
|
funcexe_T *funcexe) // more arguments
|
|
{
|
|
int ret = FAIL;
|
|
funcerror_T error = FCERR_NONE;
|
|
int i;
|
|
ufunc_T *fp = NULL;
|
|
char_u fname_buf[FLEN_FIXED + 1];
|
|
char_u *tofree = NULL;
|
|
char_u *fname = NULL;
|
|
char_u *name = NULL;
|
|
int argcount = argcount_in;
|
|
typval_T *argvars = argvars_in;
|
|
dict_T *selfdict = funcexe->fe_selfdict;
|
|
typval_T argv[MAX_FUNC_ARGS + 1]; // used when "partial" or
|
|
// "funcexe->fe_basetv" is not NULL
|
|
int argv_clear = 0;
|
|
int argv_base = 0;
|
|
partial_T *partial = funcexe->fe_partial;
|
|
type_T check_type;
|
|
type_T *check_type_args[MAX_FUNC_ARGS];
|
|
|
|
// Initialize rettv so that it is safe for caller to invoke clear_tv(rettv)
|
|
// even when call_func() returns FAIL.
|
|
rettv->v_type = VAR_UNKNOWN;
|
|
|
|
if (partial != NULL)
|
|
fp = partial->pt_func;
|
|
if (fp == NULL)
|
|
fp = funcexe->fe_ufunc;
|
|
|
|
if (fp == NULL)
|
|
{
|
|
// Make a copy of the name, if it comes from a funcref variable it
|
|
// could be changed or deleted in the called function.
|
|
name = len > 0 ? vim_strnsave(funcname, len) : vim_strsave(funcname);
|
|
if (name == NULL)
|
|
return ret;
|
|
|
|
fname = fname_trans_sid(name, fname_buf, &tofree, &error);
|
|
}
|
|
|
|
if (funcexe->fe_doesrange != NULL)
|
|
*funcexe->fe_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 == NULL || !partial->pt_auto))
|
|
selfdict = partial->pt_dict;
|
|
if (error == FCERR_NONE && partial->pt_argc > 0)
|
|
{
|
|
for (argv_clear = 0; argv_clear < partial->pt_argc; ++argv_clear)
|
|
{
|
|
if (argv_clear + argcount_in >= MAX_FUNC_ARGS)
|
|
{
|
|
error = FCERR_TOOMANY;
|
|
goto theend;
|
|
}
|
|
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;
|
|
|
|
if (funcexe->fe_check_type != NULL
|
|
&& funcexe->fe_check_type->tt_argcount != -1)
|
|
{
|
|
// Now funcexe->fe_check_type is missing the added arguments,
|
|
// make a copy of the type with the correction.
|
|
check_type = *funcexe->fe_check_type;
|
|
funcexe->fe_check_type = &check_type;
|
|
check_type.tt_args = check_type_args;
|
|
CLEAR_FIELD(check_type_args);
|
|
for (i = 0; i < check_type.tt_argcount; ++i)
|
|
check_type_args[i + partial->pt_argc] =
|
|
check_type.tt_args[i];
|
|
check_type.tt_argcount += partial->pt_argc;
|
|
check_type.tt_min_argcount += partial->pt_argc;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (error == FCERR_NONE)
|
|
// check the argument types if possible
|
|
error = may_check_argument_types(funcexe, argvars, argcount, FALSE,
|
|
(name != NULL) ? name : funcname);
|
|
|
|
if (error == FCERR_NONE && funcexe->fe_evaluate)
|
|
{
|
|
char_u *rfname = fname;
|
|
int is_global = FALSE;
|
|
|
|
// Skip "g:" before a function name.
|
|
if (fp == NULL && fname[0] == 'g' && fname[1] == ':')
|
|
{
|
|
is_global = TRUE;
|
|
rfname = fname + 2;
|
|
}
|
|
|
|
rettv->v_type = VAR_NUMBER; // default rettv is number zero
|
|
rettv->vval.v_number = 0;
|
|
error = FCERR_UNKNOWN;
|
|
|
|
if (fp != NULL || !builtin_function(rfname, -1))
|
|
{
|
|
/*
|
|
* User defined function.
|
|
*/
|
|
if (fp == NULL)
|
|
{
|
|
fp = find_func(rfname, is_global);
|
|
if (fp != NULL && !is_global && in_vim9script()
|
|
&& func_requires_g_prefix(fp))
|
|
// In Vim9 script g: is required to find a global
|
|
// non-autoload function.
|
|
fp = NULL;
|
|
}
|
|
|
|
// 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, is_global);
|
|
}
|
|
// Try loading a package.
|
|
if (fp == NULL && script_autoload(rfname, TRUE) && !aborting())
|
|
{
|
|
// loaded a package, search for the function again
|
|
fp = find_func(rfname, is_global);
|
|
}
|
|
if (fp == NULL)
|
|
{
|
|
char_u *p = untrans_function_name(rfname);
|
|
|
|
// If using Vim9 script try not local to the script.
|
|
// Don't do this if the name starts with "s:".
|
|
if (p != NULL && (funcname[0] != 's' || funcname[1] != ':'))
|
|
fp = find_func(p, is_global);
|
|
}
|
|
|
|
if (fp != NULL && (fp->uf_flags & FC_DELETED))
|
|
error = FCERR_DELETED;
|
|
else if (fp != NULL)
|
|
{
|
|
int need_arg_check = FALSE;
|
|
if (funcexe->fe_check_type == NULL)
|
|
{
|
|
funcexe->fe_check_type = fp->uf_func_type;
|
|
need_arg_check = TRUE;
|
|
}
|
|
|
|
if (funcexe->fe_argv_func != NULL)
|
|
{
|
|
// postponed filling in the arguments, do it now
|
|
argcount = funcexe->fe_argv_func(argcount, argvars,
|
|
argv_clear, fp);
|
|
need_arg_check = TRUE;
|
|
}
|
|
|
|
if (funcexe->fe_basetv != NULL)
|
|
{
|
|
// Method call: base->Method()
|
|
mch_memmove(&argv[1], argvars, sizeof(typval_T) * argcount);
|
|
argv[0] = *funcexe->fe_basetv;
|
|
argcount++;
|
|
argvars = argv;
|
|
argv_base = 1;
|
|
need_arg_check = TRUE;
|
|
}
|
|
|
|
// Check the argument types now that the function type and all
|
|
// argument values are known, if not done above.
|
|
if (need_arg_check)
|
|
error = may_check_argument_types(funcexe, argvars, argcount,
|
|
TRUE, (name != NULL) ? name : funcname);
|
|
if (error == FCERR_NONE || error == FCERR_UNKNOWN)
|
|
error = call_user_func_check(fp, argcount, argvars, rettv,
|
|
funcexe, selfdict);
|
|
}
|
|
}
|
|
else if (funcexe->fe_basetv != NULL)
|
|
{
|
|
/*
|
|
* expr->method(): Find the method name in the table, call its
|
|
* implementation with the base as one of the arguments.
|
|
*/
|
|
error = call_internal_method(fname, argcount, argvars, rettv,
|
|
funcexe->fe_basetv);
|
|
}
|
|
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 == FCERR_NONE)
|
|
ret = OK;
|
|
|
|
theend:
|
|
/*
|
|
* 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())
|
|
user_func_error(error, (name != NULL) ? name : funcname,
|
|
funcexe->fe_found_var);
|
|
|
|
// clear the copies made from the partial
|
|
while (argv_clear > 0)
|
|
clear_tv(&argv[--argv_clear + argv_base]);
|
|
|
|
vim_free(tofree);
|
|
vim_free(name);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Call a function without arguments, partial or dict.
|
|
* This is like call_func() when the call is only "FuncName()".
|
|
* To be used by "expr" options.
|
|
* Returns NOTDONE when the function could not be found.
|
|
*/
|
|
int
|
|
call_simple_func(
|
|
char_u *funcname, // name of the function
|
|
size_t len, // length of "name"
|
|
typval_T *rettv) // return value goes here
|
|
{
|
|
int ret = FAIL;
|
|
funcerror_T error = FCERR_NONE;
|
|
char_u fname_buf[FLEN_FIXED + 1];
|
|
char_u *tofree = NULL;
|
|
char_u *name;
|
|
char_u *fname;
|
|
char_u *rfname;
|
|
int is_global = FALSE;
|
|
ufunc_T *fp;
|
|
|
|
rettv->v_type = VAR_NUMBER; // default rettv is number zero
|
|
rettv->vval.v_number = 0;
|
|
|
|
// Make a copy of the name, an option can be changed in the function.
|
|
name = vim_strnsave(funcname, len);
|
|
if (name == NULL)
|
|
return ret;
|
|
|
|
fname = fname_trans_sid(name, fname_buf, &tofree, &error);
|
|
|
|
// Skip "g:" before a function name.
|
|
if (fname[0] == 'g' && fname[1] == ':')
|
|
{
|
|
is_global = TRUE;
|
|
rfname = fname + 2;
|
|
}
|
|
else
|
|
rfname = fname;
|
|
fp = find_func(rfname, is_global);
|
|
if (fp != NULL && !is_global && in_vim9script()
|
|
&& func_requires_g_prefix(fp))
|
|
// In Vim9 script g: is required to find a global non-autoload
|
|
// function.
|
|
fp = NULL;
|
|
if (fp == NULL)
|
|
ret = NOTDONE;
|
|
else if (fp != NULL && (fp->uf_flags & FC_DELETED))
|
|
error = FCERR_DELETED;
|
|
else if (fp != NULL)
|
|
{
|
|
typval_T argvars[1];
|
|
funcexe_T funcexe;
|
|
|
|
argvars[0].v_type = VAR_UNKNOWN;
|
|
CLEAR_FIELD(funcexe);
|
|
funcexe.fe_evaluate = TRUE;
|
|
|
|
error = call_user_func_check(fp, 0, argvars, rettv, &funcexe, NULL);
|
|
if (error == FCERR_NONE)
|
|
ret = OK;
|
|
}
|
|
|
|
user_func_error(error, name, FALSE);
|
|
vim_free(tofree);
|
|
vim_free(name);
|
|
|
|
return ret;
|
|
}
|
|
|
|
char_u *
|
|
printable_func_name(ufunc_T *fp)
|
|
{
|
|
return fp->uf_name_exp != NULL ? fp->uf_name_exp : fp->uf_name;
|
|
}
|
|
|
|
/*
|
|
* When "prev_ht_changed" does not equal "ht_changed" give an error and return
|
|
* TRUE. Otherwise return FALSE.
|
|
*/
|
|
static int
|
|
function_list_modified(int prev_ht_changed)
|
|
{
|
|
if (prev_ht_changed != func_hashtab.ht_changed)
|
|
{
|
|
emsg(_(e_function_list_was_modified));
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* List the head of the function: "function name(arg1, arg2)".
|
|
*/
|
|
static int
|
|
list_func_head(ufunc_T *fp, int indent)
|
|
{
|
|
int prev_ht_changed = func_hashtab.ht_changed;
|
|
int j;
|
|
|
|
msg_start();
|
|
|
|
// a timer at the more prompt may have deleted the function
|
|
if (function_list_modified(prev_ht_changed))
|
|
return FAIL;
|
|
|
|
if (indent)
|
|
msg_puts(" ");
|
|
if (fp->uf_def_status != UF_NOT_COMPILED)
|
|
msg_puts("def ");
|
|
else
|
|
msg_puts("function ");
|
|
msg_puts((char *)printable_func_name(fp));
|
|
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_arg_types != NULL)
|
|
{
|
|
char *tofree;
|
|
|
|
msg_puts(": ");
|
|
msg_puts(type_name(fp->uf_arg_types[j], &tofree));
|
|
vim_free(tofree);
|
|
}
|
|
if (j >= fp->uf_args.ga_len - fp->uf_def_args.ga_len)
|
|
{
|
|
msg_puts(" = ");
|
|
msg_puts(((char **)(fp->uf_def_args.ga_data))
|
|
[j - fp->uf_args.ga_len + fp->uf_def_args.ga_len]);
|
|
}
|
|
}
|
|
if (fp->uf_varargs)
|
|
{
|
|
if (j)
|
|
msg_puts(", ");
|
|
msg_puts("...");
|
|
}
|
|
if (fp->uf_va_name != NULL)
|
|
{
|
|
if (!fp->uf_varargs)
|
|
{
|
|
if (j)
|
|
msg_puts(", ");
|
|
msg_puts("...");
|
|
}
|
|
msg_puts((char *)fp->uf_va_name);
|
|
if (fp->uf_va_type != NULL)
|
|
{
|
|
char *tofree;
|
|
|
|
msg_puts(": ");
|
|
msg_puts(type_name(fp->uf_va_type, &tofree));
|
|
vim_free(tofree);
|
|
}
|
|
}
|
|
msg_putchar(')');
|
|
|
|
if (fp->uf_def_status != UF_NOT_COMPILED)
|
|
{
|
|
if (fp->uf_ret_type != &t_void)
|
|
{
|
|
char *tofree;
|
|
|
|
msg_puts(": ");
|
|
msg_puts(type_name(fp->uf_ret_type, &tofree));
|
|
vim_free(tofree);
|
|
}
|
|
}
|
|
else 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);
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
* 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.
|
|
* Set "*is_global" to TRUE when the function must be global, unless
|
|
* "is_global" is NULL.
|
|
* flags:
|
|
* TFN_INT: internal function name OK
|
|
* TFN_IN_CLASS: function in a class
|
|
* 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 *is_global,
|
|
int skip, // only find the end, don't evaluate
|
|
int flags)
|
|
{
|
|
return trans_function_name_ext(pp, is_global, skip, flags,
|
|
NULL, NULL, NULL, NULL);
|
|
}
|
|
|
|
/*
|
|
* trans_function_name() with extra arguments.
|
|
* "fdp", "partial", "type" and "ufunc" can be NULL.
|
|
*/
|
|
static char_u *
|
|
trans_function_name_ext(
|
|
char_u **pp,
|
|
int *is_global,
|
|
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
|
|
type_T **type, // return: type of funcref
|
|
ufunc_T **ufunc) // return: function
|
|
{
|
|
char_u *name = NULL;
|
|
char_u *start;
|
|
char_u *end;
|
|
int lead;
|
|
char_u sid_buf[20];
|
|
int len;
|
|
int extra = 0;
|
|
int prefix_g = FALSE;
|
|
lval_T lv;
|
|
int vim9script = in_vim9script();
|
|
int vim9_local;
|
|
|
|
if (fdp != NULL)
|
|
CLEAR_POINTER(fdp);
|
|
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 | GLV_PREFER_FUNC,
|
|
lead > 2 ? 0 : FNE_CHECK_START);
|
|
if (end == start || (vim9script && end != NULL
|
|
&& end[-1] == AUTOLOAD_CHAR && *end == '('))
|
|
{
|
|
if (!skip)
|
|
emsg(_(e_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_invalid_argument_str), start);
|
|
}
|
|
else
|
|
*pp = find_name_end(start, NULL, NULL, FNE_INCL_BR);
|
|
goto theend;
|
|
}
|
|
|
|
if (lv.ll_ufunc != NULL)
|
|
{
|
|
if (ufunc != NULL)
|
|
*ufunc = lv.ll_ufunc;
|
|
name = vim_strnsave(lv.ll_ufunc->uf_name, lv.ll_ufunc->uf_namelen);
|
|
*pp = end;
|
|
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_CLASS
|
|
&& lv.ll_tv->vval.v_class != NULL)
|
|
{
|
|
name = vim_strsave(lv.ll_tv->vval.v_class->class_name);
|
|
*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_required));
|
|
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, type,
|
|
flags & TFN_NO_AUTOLOAD, flags & TFN_NEW_FUNC, NULL);
|
|
if (name == lv.ll_exp_name)
|
|
name = NULL;
|
|
}
|
|
else if (lv.ll_sid > 0)
|
|
{
|
|
scriptitem_T *si = SCRIPT_ITEM(lv.ll_sid);
|
|
int cc = *lv.ll_name_end;
|
|
|
|
// function in another script. Prefix <SNR>99_ or the autoload prefix.
|
|
*lv.ll_name_end = NUL;
|
|
if (si->sn_autoload_prefix != NULL)
|
|
{
|
|
name = concat_str(si->sn_autoload_prefix, lv.ll_name);
|
|
}
|
|
else
|
|
{
|
|
sid_buf[0] = K_SPECIAL;
|
|
sid_buf[1] = KS_EXTRA;
|
|
sid_buf[2] = (int)KE_SNR;
|
|
vim_snprintf((char *)sid_buf + 3, sizeof(sid_buf) - 3,
|
|
"%ld_", (long)lv.ll_sid);
|
|
name = concat_str(sid_buf, lv.ll_name);
|
|
}
|
|
*lv.ll_name_end = cc;
|
|
*pp = end;
|
|
goto theend;
|
|
}
|
|
else if (!(flags & TFN_NO_DEREF))
|
|
{
|
|
len = (int)(end - *pp);
|
|
name = deref_func_name(*pp, &len, partial, type,
|
|
flags & TFN_NO_AUTOLOAD, flags & TFN_NEW_FUNC, NULL);
|
|
if (name == *pp)
|
|
name = NULL;
|
|
}
|
|
if (name != NULL)
|
|
{
|
|
name = vim_strsave(name);
|
|
*pp = end;
|
|
if (name != NULL && 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] == ':'))
|
|
{
|
|
if (lv.ll_name[0] == 'g')
|
|
{
|
|
if (is_global != NULL)
|
|
{
|
|
*is_global = TRUE;
|
|
}
|
|
else
|
|
{
|
|
// dropping "g:" without setting "is_global" won't work in
|
|
// Vim9script, put it back later
|
|
prefix_g = TRUE;
|
|
extra = 2;
|
|
}
|
|
}
|
|
lv.ll_name += 2;
|
|
}
|
|
len = (int)(end - lv.ll_name);
|
|
}
|
|
if (len <= 0)
|
|
{
|
|
if (!skip)
|
|
emsg(_(e_function_name_required));
|
|
goto theend;
|
|
}
|
|
|
|
// In Vim9 script a user function is script-local by default, unless it
|
|
// starts with a lower case character: dict.func(). Or when in a class.
|
|
vim9_local = ASCII_ISUPPER(*start) && vim9script
|
|
&& (flags & TFN_IN_CLASS) == 0;
|
|
|
|
/*
|
|
* 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 || vim9_local)
|
|
{
|
|
if (!vim9_local)
|
|
{
|
|
if (vim9script && lead == 2 && !ASCII_ISUPPER(*lv.ll_name)
|
|
&& current_script_is_vim9())
|
|
{
|
|
semsg(_(e_function_name_must_start_with_capital_str), start);
|
|
goto theend;
|
|
}
|
|
lead = 3;
|
|
}
|
|
if (vim9_local || (lv.ll_exp_name != NULL
|
|
&& eval_fname_sid(lv.ll_exp_name))
|
|
|| eval_fname_sid(*pp))
|
|
{
|
|
size_t sid_buflen;
|
|
|
|
// It's script-local, "s:" or "<SID>"
|
|
if (current_sctx.sc_sid <= 0)
|
|
{
|
|
emsg(_(e_using_sid_not_in_script_context));
|
|
goto theend;
|
|
}
|
|
sid_buflen = vim_snprintf((char *)sid_buf, sizeof(sid_buf), "%ld_", (long)current_sctx.sc_sid);
|
|
if (vim9_local)
|
|
extra = 3 + (int)sid_buflen;
|
|
else
|
|
lead += (int)sid_buflen;
|
|
}
|
|
}
|
|
// The function name must start with an upper case letter (unless it is a
|
|
// Vim9 class new() function or a Vim9 class private method or one of the
|
|
// supported Vim9 object builtin functions)
|
|
else if (!(flags & TFN_INT)
|
|
&& (builtin_function(lv.ll_name, len)
|
|
|| (vim9script && *lv.ll_name == '_'))
|
|
&& !((flags & TFN_IN_CLASS)
|
|
&& (is_valid_builtin_obj_methodname(lv.ll_name)
|
|
|| (*lv.ll_name == '_'))))
|
|
{
|
|
semsg(_(vim9script ? e_function_name_must_start_with_capital_str
|
|
: e_function_name_must_start_with_capital_or_s_str),
|
|
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(_(e_function_name_cannot_contain_colon_str), start);
|
|
goto theend;
|
|
}
|
|
}
|
|
|
|
name = alloc(len + lead + extra + 1);
|
|
if (name != NULL)
|
|
{
|
|
if (!skip && (lead > 0 || vim9_local))
|
|
{
|
|
name[0] = K_SPECIAL;
|
|
name[1] = KS_EXTRA;
|
|
name[2] = (int)KE_SNR;
|
|
if (vim9_local || lead > 3) // If it's "<SID>"
|
|
STRCPY(name + 3, sid_buf);
|
|
}
|
|
else if (prefix_g)
|
|
{
|
|
name[0] = 'g';
|
|
name[1] = ':';
|
|
}
|
|
mch_memmove(name + lead + extra, lv.ll_name, (size_t)len);
|
|
name[lead + extra + len] = NUL;
|
|
}
|
|
*pp = end;
|
|
|
|
theend:
|
|
clear_lval(&lv);
|
|
return name;
|
|
}
|
|
|
|
/*
|
|
* Assuming "name" is the result of trans_function_name() and it was prefixed
|
|
* to use the script-local name, return the unmodified name (points into
|
|
* "name"). Otherwise return NULL.
|
|
* This can be used to first search for a script-local function and fall back
|
|
* to the global function if not found.
|
|
*/
|
|
static char_u *
|
|
untrans_function_name(char_u *name)
|
|
{
|
|
char_u *p;
|
|
|
|
if (*name == K_SPECIAL && in_vim9script())
|
|
{
|
|
p = vim_strchr(name, '_');
|
|
if (p != NULL)
|
|
return p + 1;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* If the 'funcname' starts with "s:" or "<SID>", then expands it to the
|
|
* current script ID and returns the expanded function name. The caller should
|
|
* free the returned name. If not called from a script context or the function
|
|
* name doesn't start with these prefixes, then returns NULL.
|
|
* This doesn't check whether the script-local function exists or not.
|
|
*/
|
|
char_u *
|
|
get_scriptlocal_funcname(char_u *funcname)
|
|
{
|
|
char sid_buf[25];
|
|
size_t sid_buflen;
|
|
int off;
|
|
char_u *newname;
|
|
size_t newnamesize;
|
|
char_u *p = funcname;
|
|
|
|
if (funcname == NULL)
|
|
return NULL;
|
|
|
|
if (STRNCMP(funcname, "s:", 2) != 0
|
|
&& STRNCMP(funcname, "<SID>", 5) != 0)
|
|
{
|
|
ufunc_T *ufunc;
|
|
|
|
// The function name does not have a script-local prefix. Try finding
|
|
// it when in a Vim9 script and there is no "g:" prefix.
|
|
if (!in_vim9script() || STRNCMP(funcname, "g:", 2) == 0)
|
|
return NULL;
|
|
ufunc = find_func(funcname, FALSE);
|
|
if (ufunc == NULL || func_is_global(ufunc)
|
|
|| (p = vim_strchr(ufunc->uf_name, '_')) == NULL)
|
|
return NULL;
|
|
++p;
|
|
off = 0;
|
|
}
|
|
else
|
|
off = *funcname == 's' ? 2 : 5;
|
|
|
|
if (!SCRIPT_ID_VALID(current_sctx.sc_sid))
|
|
{
|
|
emsg(_(e_using_sid_not_in_script_context));
|
|
return NULL;
|
|
}
|
|
// Expand s: prefix into <SNR>nr_<name>
|
|
sid_buflen = vim_snprintf(sid_buf, sizeof(sid_buf), "<SNR>%ld_",
|
|
(long)current_sctx.sc_sid);
|
|
newnamesize = sid_buflen + STRLEN(p + off) + 1;
|
|
newname = alloc(newnamesize);
|
|
if (newname == NULL)
|
|
return NULL;
|
|
vim_snprintf((char *)newname, newnamesize, "%s%s", sid_buf, p + off);
|
|
|
|
return newname;
|
|
}
|
|
|
|
/*
|
|
* Return script-local "fname" with the 3-byte sequence replaced by
|
|
* printable <SNR> in allocated memory.
|
|
*/
|
|
char_u *
|
|
alloc_printable_func_name(char_u *fname)
|
|
{
|
|
char_u *n = alloc(STRLEN(fname + 3) + 6);
|
|
|
|
if (n != NULL)
|
|
{
|
|
STRCPY(n, "<SNR>");
|
|
STRCPY(n + 5, fname + 3);
|
|
}
|
|
return n;
|
|
}
|
|
|
|
/*
|
|
* Call trans_function_name(), except that a lambda is returned as-is.
|
|
* Returns the name in allocated memory.
|
|
*/
|
|
char_u *
|
|
save_function_name(
|
|
char_u **name,
|
|
int *is_global,
|
|
int skip,
|
|
int flags,
|
|
funcdict_T *fudi)
|
|
{
|
|
char_u *p = *name;
|
|
char_u *saved;
|
|
|
|
if (STRNCMP(p, "<lambda>", 8) == 0)
|
|
{
|
|
p += 8;
|
|
(void)getdigits(&p);
|
|
saved = vim_strnsave(*name, p - *name);
|
|
if (fudi != NULL)
|
|
CLEAR_POINTER(fudi);
|
|
}
|
|
else
|
|
saved = trans_function_name_ext(&p, is_global, skip,
|
|
flags, fudi, NULL, NULL, NULL);
|
|
*name = p;
|
|
return saved;
|
|
}
|
|
|
|
/*
|
|
* List functions. When "regmatch" is NULL all of then.
|
|
* Otherwise functions matching "regmatch".
|
|
*/
|
|
void
|
|
list_functions(regmatch_T *regmatch)
|
|
{
|
|
int prev_ht_changed = func_hashtab.ht_changed;
|
|
long_u todo = func_hashtab.ht_used;
|
|
hashitem_T *hi;
|
|
|
|
for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi)
|
|
{
|
|
if (!HASHITEM_EMPTY(hi))
|
|
{
|
|
ufunc_T *fp = HI2UF(hi);
|
|
|
|
--todo;
|
|
if ((fp->uf_flags & FC_DEAD) == 0
|
|
&& (regmatch == NULL
|
|
? !message_filtered(fp->uf_name)
|
|
&& !func_name_refcount(fp->uf_name)
|
|
: !SAFE_isdigit(*fp->uf_name)
|
|
&& vim_regexec(regmatch, fp->uf_name, 0)))
|
|
{
|
|
if (list_func_head(fp, FALSE) == FAIL)
|
|
return;
|
|
if (function_list_modified(prev_ht_changed))
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* ":function" also supporting nested ":def".
|
|
* When "name_arg" is not NULL this is a nested function, using "name_arg" for
|
|
* the function name.
|
|
* "lines_to_free" is a list of strings to be freed later.
|
|
* If "class_flags" has CF_CLASS then the function is defined inside a class.
|
|
* With CF_INTERFACE the function is define inside an interface, only the
|
|
* ":def"/":function" line is expected, no function body.
|
|
* Returns a pointer to the function or NULL if no function defined.
|
|
*/
|
|
ufunc_T *
|
|
define_function(
|
|
exarg_T *eap,
|
|
char_u *name_arg,
|
|
garray_T *lines_to_free,
|
|
int class_flags,
|
|
ocmember_T *obj_members,
|
|
int obj_member_count)
|
|
{
|
|
int j;
|
|
int c;
|
|
int saved_did_emsg = FALSE;
|
|
char_u *name = name_arg;
|
|
size_t namelen = 0;
|
|
int is_global = FALSE;
|
|
char_u *p;
|
|
char_u *arg;
|
|
char_u *whitep;
|
|
char_u *line_arg = NULL;
|
|
garray_T newargs;
|
|
garray_T argtypes;
|
|
garray_T arg_objm;
|
|
garray_T default_args;
|
|
garray_T newlines;
|
|
int varargs = FALSE;
|
|
int flags = 0;
|
|
char_u *ret_type = NULL;
|
|
ufunc_T *fp = NULL;
|
|
int fp_allocated = FALSE;
|
|
int free_fp = FALSE;
|
|
int overwrite = FALSE;
|
|
dictitem_T *v;
|
|
funcdict_T fudi;
|
|
static int func_nr = 0; // number for nameless function
|
|
int paren;
|
|
hashitem_T *hi;
|
|
linenr_T sourcing_lnum_top;
|
|
int vim9script = in_vim9script();
|
|
imported_T *import = NULL;
|
|
|
|
/*
|
|
* ":function" without argument: list functions.
|
|
*/
|
|
if (ends_excmd2(eap->cmd, eap->arg))
|
|
{
|
|
if (!eap->skip)
|
|
list_functions(NULL);
|
|
set_nextcmd(eap, eap->arg);
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* ":function /pat": list functions matching pattern.
|
|
*/
|
|
if (*eap->arg == '/')
|
|
{
|
|
p = skip_regexp(eap->arg + 1, '/', TRUE);
|
|
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;
|
|
list_functions(®match);
|
|
vim_regfree(regmatch.regprog);
|
|
}
|
|
}
|
|
if (*p == '/')
|
|
++p;
|
|
set_nextcmd(eap, p);
|
|
return NULL;
|
|
}
|
|
|
|
ga_init(&newargs);
|
|
ga_init(&argtypes);
|
|
ga_init(&arg_objm);
|
|
ga_init(&default_args);
|
|
|
|
/*
|
|
* Get the function name. There are these situations:
|
|
* func normal function name, also when "class_flags" is non-zero
|
|
* "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;
|
|
if (name_arg != NULL)
|
|
{
|
|
// nested function, argument is (args).
|
|
paren = TRUE;
|
|
CLEAR_FIELD(fudi);
|
|
}
|
|
else
|
|
{
|
|
if (vim9script)
|
|
{
|
|
if (p[0] == 's' && p[1] == ':')
|
|
{
|
|
semsg(_(e_cannot_use_s_colon_in_vim9_script_str), p);
|
|
return NULL;
|
|
}
|
|
p = to_name_end(p, TRUE);
|
|
if (*skipwhite(p) == '.' && vim_strchr(p, '(') != NULL)
|
|
{
|
|
semsg(_(e_cannot_define_dict_func_in_vim9_script_str),
|
|
eap->arg);
|
|
return NULL;
|
|
}
|
|
p = eap->arg;
|
|
}
|
|
|
|
int tfn_flags = TFN_NO_AUTOLOAD | TFN_NEW_FUNC
|
|
| (class_flags != 0 ? TFN_IN_CLASS : 0);
|
|
name = save_function_name(&p, &is_global, eap->skip, tfn_flags, &fudi);
|
|
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_key_not_present_in_dictionary_str),
|
|
fudi.fd_newkey);
|
|
vim_free(fudi.fd_newkey);
|
|
return NULL;
|
|
}
|
|
else
|
|
eap->skip = TRUE;
|
|
}
|
|
|
|
// For "export def FuncName()" in an autoload script the function name
|
|
// is stored with the legacy autoload name "dir#script#FuncName" so
|
|
// that it can also be found in legacy script.
|
|
if (is_export && name != NULL)
|
|
{
|
|
char_u *prefixed = may_prefix_autoload(name);
|
|
|
|
if (prefixed != NULL && prefixed != name)
|
|
{
|
|
vim_free(name);
|
|
name = prefixed;
|
|
}
|
|
}
|
|
else if (paren && vim9script && name != NULL
|
|
&& vim_strchr(name, AUTOLOAD_CHAR) != NULL)
|
|
{
|
|
emsg(_(e_cannot_use_name_with_hash_in_vim9_script_use_export_instead));
|
|
goto ret_free;
|
|
}
|
|
}
|
|
|
|
// 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)))
|
|
{
|
|
semsg(_(e_trailing_characters_str), p);
|
|
goto ret_free;
|
|
}
|
|
set_nextcmd(eap, p);
|
|
if (eap->nextcmd != NULL)
|
|
*p = NUL;
|
|
if (!eap->skip && !got_int)
|
|
{
|
|
fp = find_func(name, is_global);
|
|
if (fp == NULL && ASCII_ISUPPER(*eap->arg))
|
|
{
|
|
char_u *up = untrans_function_name(name);
|
|
|
|
// With Vim9 script the name was made script-local, if not
|
|
// found try again with the original name.
|
|
if (up != NULL)
|
|
fp = find_func(up, FALSE);
|
|
}
|
|
|
|
if (fp != NULL)
|
|
{
|
|
// Check no function was added or removed from a timer, e.g. at
|
|
// the more prompt. "fp" may then be invalid.
|
|
int prev_ht_changed = func_hashtab.ht_changed;
|
|
|
|
if (list_func_head(fp, TRUE) == OK)
|
|
{
|
|
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(' ');
|
|
if (function_list_modified(prev_ht_changed))
|
|
break;
|
|
msg_prt_line(FUNCLINE(fp, j), FALSE);
|
|
out_flush(); // show a line at a time
|
|
ui_breakcheck();
|
|
}
|
|
if (!got_int)
|
|
{
|
|
msg_putchar('\n');
|
|
if (!function_list_modified(prev_ht_changed))
|
|
{
|
|
if (fp->uf_def_status != UF_NOT_COMPILED)
|
|
msg_puts(" enddef");
|
|
else
|
|
msg_puts(" endfunction");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
emsg_funcname(e_undefined_function_str, eap->arg);
|
|
}
|
|
goto ret_free;
|
|
}
|
|
|
|
/*
|
|
* ":function name(arg1, arg2)" Define function.
|
|
*/
|
|
p = skipwhite(p);
|
|
if (*p != '(')
|
|
{
|
|
if (!eap->skip)
|
|
{
|
|
semsg(_(e_missing_paren_str), eap->arg);
|
|
goto ret_free;
|
|
}
|
|
// attempt to continue by skipping some text
|
|
if (vim_strchr(p, '(') != NULL)
|
|
p = vim_strchr(p, '(');
|
|
}
|
|
|
|
if ((vim9script || eap->cmdidx == CMD_def) && VIM_ISWHITE(p[-1]))
|
|
{
|
|
semsg(_(e_no_white_space_allowed_before_str_str), "(", p - 1);
|
|
goto ret_free;
|
|
}
|
|
|
|
// In Vim9 script only global functions can be redefined.
|
|
if (vim9script && eap->forceit && !is_global)
|
|
{
|
|
emsg(_(e_no_bang_allowed));
|
|
goto ret_free;
|
|
}
|
|
|
|
ga_init2(&newlines, sizeof(char_u *), 10);
|
|
|
|
if (!eap->skip && name_arg == NULL)
|
|
{
|
|
// 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)))
|
|
{
|
|
char_u *name_base = arg;
|
|
int i;
|
|
|
|
if (*arg == K_SPECIAL)
|
|
{
|
|
name_base = vim_strchr(arg, '_');
|
|
if (name_base == NULL)
|
|
name_base = arg + 3;
|
|
else
|
|
++name_base;
|
|
}
|
|
for (i = 0; name_base[i] != NUL && (i == 0
|
|
? eval_isnamec1(name_base[i])
|
|
: eval_isnamec(name_base[i])); ++i)
|
|
;
|
|
if (name_base[i] != NUL)
|
|
{
|
|
emsg_funcname(e_invalid_argument_str, arg);
|
|
goto ret_free;
|
|
}
|
|
|
|
// In Vim9 script a function cannot have the same name as a
|
|
// variable.
|
|
if (vim9script && *arg == K_SPECIAL
|
|
&& eval_variable(name_base, i, 0, NULL,
|
|
NULL, EVAL_VAR_NOAUTOLOAD + EVAL_VAR_IMPORT
|
|
+ EVAL_VAR_NO_FUNC) == OK)
|
|
{
|
|
semsg(_(e_redefining_script_item_str), name_base);
|
|
goto ret_free;
|
|
}
|
|
}
|
|
// Disallow using the g: dict.
|
|
if (fudi.fd_dict != NULL && fudi.fd_dict->dv_scope == VAR_DEF_SCOPE)
|
|
{
|
|
emsg(_(e_cannot_use_g_here));
|
|
goto ret_free;
|
|
}
|
|
}
|
|
|
|
// This may get more lines and make the pointers into the first line
|
|
// invalid.
|
|
++p;
|
|
if (get_function_args(&p, ')', &newargs,
|
|
eap->cmdidx == CMD_def ? &argtypes : NULL, FALSE,
|
|
eap->cmdidx == CMD_def ? &arg_objm : NULL,
|
|
NULL, &varargs, &default_args, eap->skip,
|
|
eap, class_flags, &newlines, lines_to_free) == FAIL)
|
|
goto errret_2;
|
|
whitep = p;
|
|
|
|
if (eap->cmdidx == CMD_def)
|
|
{
|
|
// find the return type: :def Func(): type
|
|
if (*skipwhite(p) == ':')
|
|
{
|
|
if (*p != ':')
|
|
{
|
|
semsg(_(e_no_white_space_allowed_before_colon_str), p);
|
|
p = skipwhite(p);
|
|
}
|
|
else if (!IS_WHITE_OR_NUL(p[1]))
|
|
semsg(_(e_white_space_required_after_str_str), ":", p);
|
|
ret_type = skipwhite(p + 1);
|
|
p = skip_type(ret_type, FALSE);
|
|
if (p > ret_type)
|
|
{
|
|
ret_type = vim_strnsave(ret_type, p - ret_type);
|
|
whitep = p;
|
|
p = skipwhite(p);
|
|
}
|
|
else
|
|
{
|
|
semsg(_(e_expected_type_str), ret_type);
|
|
ret_type = NULL;
|
|
}
|
|
}
|
|
p = skipwhite(p);
|
|
}
|
|
else
|
|
// find extra arguments "range", "dict", "abort" and "closure"
|
|
for (;;)
|
|
{
|
|
whitep = p;
|
|
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(e_closure_function_should_not_be_at_top_level_str,
|
|
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 == '"' && (!vim9script || eap->cmdidx == CMD_function)
|
|
&& eap->cmdidx != CMD_def)
|
|
&& !(VIM_ISWHITE(*whitep) && *p == '#'
|
|
&& (vim9script || eap->cmdidx == CMD_def))
|
|
&& !eap->skip
|
|
&& !did_emsg)
|
|
semsg(_(e_trailing_characters_str), p);
|
|
|
|
/*
|
|
* Read the body of the function, until "}", ":endfunction" or ":enddef" 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_dictionary_entry_already_exists));
|
|
else if (name != NULL && find_func(name, is_global) != NULL)
|
|
emsg_funcname(e_function_str_already_exists_add_bang_to_replace, name);
|
|
}
|
|
|
|
if (!eap->skip && did_emsg)
|
|
goto erret;
|
|
|
|
msg_putchar('\n'); // don't overwrite the function name
|
|
cmdline_row = msg_row;
|
|
}
|
|
|
|
// Save the starting line number.
|
|
sourcing_lnum_top = SOURCING_LNUM;
|
|
|
|
// Do not define the function when getting the body fails and when
|
|
// skipping.
|
|
if (((class_flags & CF_INTERFACE) == 0
|
|
&& (class_flags & CF_ABSTRACT_METHOD) == 0
|
|
&& get_function_body(eap, &newlines, line_arg, lines_to_free)
|
|
== FAIL)
|
|
|| eap->skip)
|
|
goto erret;
|
|
|
|
/*
|
|
* If there are no errors, add the function
|
|
*/
|
|
if (fudi.fd_dict != NULL)
|
|
{
|
|
char numbuf[NUMBUFLEN];
|
|
|
|
fp = NULL;
|
|
if (fudi.fd_newkey == NULL && !eap->forceit)
|
|
{
|
|
emsg(_(e_dictionary_entry_already_exists));
|
|
goto erret;
|
|
}
|
|
if (fudi.fd_di == NULL)
|
|
{
|
|
// Can't add a function to a locked dictionary
|
|
if (value_check_lock(fudi.fd_dict->dv_lock, eap->arg, FALSE))
|
|
goto erret;
|
|
}
|
|
// Can't change an existing function if it is locked
|
|
else if (value_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);
|
|
namelen = vim_snprintf(numbuf, sizeof(numbuf), "%d", ++func_nr);
|
|
name = vim_strnsave((char_u *)numbuf, namelen);
|
|
if (name == NULL)
|
|
goto erret;
|
|
}
|
|
else if (class_flags == 0)
|
|
{
|
|
hashtab_T *ht;
|
|
char_u *find_name = name;
|
|
int var_conflict = FALSE;
|
|
int ffed_flags = is_global ? FFED_IS_GLOBAL : 0;
|
|
|
|
v = find_var(name, &ht, TRUE);
|
|
if (v != NULL && (vim9script || v->di_tv.v_type == VAR_FUNC))
|
|
var_conflict = TRUE;
|
|
|
|
if (SCRIPT_ID_VALID(current_sctx.sc_sid))
|
|
{
|
|
scriptitem_T *si = SCRIPT_ITEM(current_sctx.sc_sid);
|
|
|
|
if (si->sn_autoload_prefix != NULL)
|
|
{
|
|
if (is_export)
|
|
{
|
|
find_name = name + STRLEN(si->sn_autoload_prefix);
|
|
v = find_var(find_name, &ht, TRUE);
|
|
if (v != NULL)
|
|
var_conflict = TRUE;
|
|
// Only check if the function already exists in the script,
|
|
// global functions can be shadowed.
|
|
ffed_flags |= FFED_NO_GLOBAL;
|
|
}
|
|
else
|
|
{
|
|
char_u *prefixed = may_prefix_autoload(name);
|
|
|
|
if (prefixed != NULL && prefixed != name)
|
|
{
|
|
v = find_var(prefixed, &ht, TRUE);
|
|
if (v != NULL)
|
|
var_conflict = TRUE;
|
|
vim_free(prefixed);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (var_conflict)
|
|
{
|
|
emsg_funcname(e_function_name_conflicts_with_variable_str, name);
|
|
goto erret;
|
|
}
|
|
|
|
fp = find_func_even_dead(find_name, ffed_flags);
|
|
if (vim9script)
|
|
{
|
|
char_u *uname = untrans_function_name(name);
|
|
|
|
import = find_imported(uname == NULL ? name : uname, 0, FALSE);
|
|
}
|
|
|
|
if (fp != NULL || import != NULL)
|
|
{
|
|
int dead = fp != NULL && (fp->uf_flags & FC_DEAD);
|
|
|
|
// Function can be replaced with "function!" and when sourcing the
|
|
// same script again, but only once.
|
|
// A name that is used by an import can not be overruled.
|
|
if (import != NULL
|
|
|| (!dead && !eap->forceit
|
|
&& (fp->uf_script_ctx.sc_sid != current_sctx.sc_sid
|
|
|| fp->uf_script_ctx.sc_seq == current_sctx.sc_seq)))
|
|
{
|
|
SOURCING_LNUM = sourcing_lnum_top;
|
|
if (vim9script)
|
|
emsg_funcname(e_name_already_defined_str, name);
|
|
else
|
|
emsg_funcname(e_function_str_already_exists_add_bang_to_replace, name);
|
|
goto errret_keep;
|
|
}
|
|
if (fp->uf_calls > 0)
|
|
{
|
|
emsg_funcname(
|
|
e_cannot_redefine_function_str_it_is_in_use, name);
|
|
goto errret_keep;
|
|
}
|
|
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
|
|
{
|
|
char_u *exp_name = fp->uf_name_exp;
|
|
|
|
// redefine existing function, keep the expanded name
|
|
VIM_CLEAR(name);
|
|
namelen = 0;
|
|
fp->uf_name_exp = NULL;
|
|
func_clear_items(fp);
|
|
fp->uf_name_exp = exp_name;
|
|
fp->uf_flags &= ~FC_DEAD;
|
|
#ifdef FEAT_PROFILE
|
|
fp->uf_profiling = FALSE;
|
|
fp->uf_prof_initialized = FALSE;
|
|
#endif
|
|
fp->uf_def_status = UF_NOT_COMPILED;
|
|
}
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
linenr_T save_lnum = SOURCING_LNUM;
|
|
|
|
SOURCING_LNUM = sourcing_lnum_top;
|
|
semsg(_(e_function_name_does_not_match_script_file_name_str),
|
|
name);
|
|
SOURCING_LNUM = save_lnum;
|
|
goto erret;
|
|
}
|
|
}
|
|
|
|
if (namelen == 0)
|
|
namelen = STRLEN(name);
|
|
fp = alloc_ufunc(name, namelen);
|
|
if (fp == NULL)
|
|
goto erret;
|
|
fp_allocated = TRUE;
|
|
|
|
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_CLEAR(fp);
|
|
goto erret;
|
|
}
|
|
if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL)
|
|
{
|
|
vim_free(fudi.fd_di);
|
|
VIM_CLEAR(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_strnsave(name, namelen);
|
|
|
|
// behave like "dict" was used
|
|
flags |= FC_DICT;
|
|
}
|
|
}
|
|
fp->uf_args = newargs;
|
|
fp->uf_def_args = default_args;
|
|
fp->uf_ret_type = &t_any;
|
|
fp->uf_func_type = &t_func_any;
|
|
|
|
if (eap->cmdidx == CMD_def)
|
|
{
|
|
int lnum_save = SOURCING_LNUM;
|
|
cstack_T *cstack = eap->cstack;
|
|
|
|
fp->uf_def_status = UF_TO_BE_COMPILED;
|
|
|
|
// error messages are for the first function line
|
|
SOURCING_LNUM = sourcing_lnum_top;
|
|
|
|
// The function may use script variables from the context.
|
|
function_using_block_scopes(fp, cstack);
|
|
|
|
// The argument types and the return type may use an imported type.
|
|
// In that case, the imported file will be sourced. To avoid treating
|
|
// everything in the imported file as exported, temporarily reset
|
|
// is_export.
|
|
int save_is_export = is_export;
|
|
is_export = FALSE;
|
|
|
|
if (parse_argument_types(fp, &argtypes, varargs, &arg_objm,
|
|
obj_members, obj_member_count) == FAIL)
|
|
{
|
|
SOURCING_LNUM = lnum_save;
|
|
free_fp = fp_allocated;
|
|
is_export = save_is_export;
|
|
goto erret;
|
|
}
|
|
varargs = FALSE;
|
|
|
|
// parse the return type, if any
|
|
if (parse_return_type(fp, ret_type) == FAIL)
|
|
{
|
|
SOURCING_LNUM = lnum_save;
|
|
free_fp = fp_allocated;
|
|
is_export = save_is_export;
|
|
goto erret;
|
|
}
|
|
is_export = save_is_export;
|
|
SOURCING_LNUM = lnum_save;
|
|
}
|
|
else
|
|
fp->uf_def_status = UF_NOT_COMPILED;
|
|
|
|
if (fp_allocated)
|
|
{
|
|
// insert the new function in the function list
|
|
if (overwrite)
|
|
{
|
|
hi = hash_find(&func_hashtab, name);
|
|
hi->hi_key = UF2HIKEY(fp);
|
|
}
|
|
else if (class_flags == 0 && hash_add(&func_hashtab,
|
|
UF2HIKEY(fp), "add function") == FAIL)
|
|
{
|
|
free_fp = TRUE;
|
|
goto erret;
|
|
}
|
|
fp->uf_refcount = 1;
|
|
}
|
|
|
|
fp->uf_lines = newlines;
|
|
newlines.ga_data = NULL;
|
|
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;
|
|
if (vim9script && !ASCII_ISUPPER(*fp->uf_name))
|
|
flags |= FC_VIM9;
|
|
fp->uf_flags = flags;
|
|
fp->uf_calls = 0;
|
|
fp->uf_cleared = FALSE;
|
|
fp->uf_script_ctx = current_sctx;
|
|
fp->uf_script_ctx_version = current_sctx.sc_version;
|
|
fp->uf_script_ctx.sc_lnum += sourcing_lnum_top;
|
|
if (is_export)
|
|
{
|
|
fp->uf_flags |= FC_EXPORT;
|
|
// let do_one_cmd() know the export worked.
|
|
is_export = FALSE;
|
|
}
|
|
|
|
if (eap->cmdidx == CMD_def)
|
|
set_function_type(fp);
|
|
else if (fp->uf_script_ctx.sc_version == SCRIPT_VERSION_VIM9)
|
|
// :func does not use Vim9 script syntax, even in a Vim9 script file
|
|
fp->uf_script_ctx.sc_version = SCRIPT_VERSION_MAX;
|
|
|
|
// If test_override('defcompile' 1) is used, then compile the function now
|
|
if (eap->cmdidx == CMD_def && override_defcompile)
|
|
defcompile_function(fp, NULL);
|
|
|
|
goto ret_free;
|
|
|
|
erret:
|
|
if (fp != NULL)
|
|
{
|
|
// these were set to "newargs" and "default_args", which are cleared
|
|
// below
|
|
ga_init(&fp->uf_args);
|
|
ga_init(&fp->uf_def_args);
|
|
}
|
|
errret_2:
|
|
if (fp != NULL)
|
|
{
|
|
VIM_CLEAR(fp->uf_arg_types);
|
|
VIM_CLEAR(fp->uf_va_name);
|
|
VIM_CLEAR(fp->uf_name_exp);
|
|
clear_func_type_list(&fp->uf_type_list, &fp->uf_func_type);
|
|
}
|
|
if (free_fp)
|
|
VIM_CLEAR(fp);
|
|
errret_keep:
|
|
ga_clear_strings(&newargs);
|
|
ga_clear_strings(&default_args);
|
|
ga_clear_strings(&newlines);
|
|
ret_free:
|
|
ga_clear_strings(&argtypes);
|
|
ga_clear(&arg_objm);
|
|
vim_free(fudi.fd_newkey);
|
|
if (name != name_arg)
|
|
vim_free(name);
|
|
vim_free(ret_type);
|
|
did_emsg |= saved_did_emsg;
|
|
|
|
return fp;
|
|
}
|
|
|
|
/*
|
|
* ":function"
|
|
*/
|
|
void
|
|
ex_function(exarg_T *eap)
|
|
{
|
|
garray_T lines_to_free;
|
|
|
|
ga_init2(&lines_to_free, sizeof(char_u *), 50);
|
|
(void)define_function(eap, NULL, &lines_to_free, 0, NULL, 0);
|
|
ga_clear_strings(&lines_to_free);
|
|
}
|
|
|
|
int
|
|
get_func_arity(char_u *name, int *required, int *optional, int *varargs)
|
|
{
|
|
ufunc_T *ufunc = NULL;
|
|
int argcount = 0;
|
|
int min_argcount = 0;
|
|
int idx;
|
|
|
|
idx = find_internal_func(name);
|
|
if (idx >= 0)
|
|
{
|
|
internal_func_get_argcount(idx, &argcount, &min_argcount);
|
|
*varargs = FALSE;
|
|
}
|
|
else
|
|
{
|
|
char_u fname_buf[FLEN_FIXED + 1];
|
|
char_u *tofree = NULL;
|
|
funcerror_T error = FCERR_NONE;
|
|
char_u *fname;
|
|
|
|
// May need to translate <SNR>123_ to K_SNR.
|
|
fname = fname_trans_sid(name, fname_buf, &tofree, &error);
|
|
if (error == FCERR_NONE)
|
|
ufunc = find_func(fname, FALSE);
|
|
vim_free(tofree);
|
|
|
|
if (ufunc == NULL)
|
|
return FAIL;
|
|
|
|
argcount = ufunc->uf_args.ga_len;
|
|
min_argcount = ufunc->uf_args.ga_len - ufunc->uf_def_args.ga_len;
|
|
*varargs = has_varargs(ufunc);
|
|
}
|
|
|
|
*required = min_argcount;
|
|
*optional = argcount - min_argcount;
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
* Find a function by name, including "<lambda>123".
|
|
* Check for "profile" and "debug" arguments and set"compile_type".
|
|
* Caller should initialize "compile_type" to CT_NONE.
|
|
* Return NULL if not found.
|
|
*/
|
|
ufunc_T *
|
|
find_func_by_name(char_u *name, compiletype_T *compile_type)
|
|
{
|
|
char_u *arg = name;
|
|
char_u *fname;
|
|
ufunc_T *ufunc;
|
|
int is_global = FALSE;
|
|
|
|
if (STRNCMP(arg, "profile", 7) == 0 && VIM_ISWHITE(arg[7]))
|
|
{
|
|
*compile_type = CT_PROFILE;
|
|
arg = skipwhite(arg + 7);
|
|
}
|
|
else if (STRNCMP(arg, "debug", 5) == 0 && VIM_ISWHITE(arg[5]))
|
|
{
|
|
*compile_type = CT_DEBUG;
|
|
arg = skipwhite(arg + 5);
|
|
}
|
|
|
|
if (STRNCMP(arg, "<lambda>", 8) == 0)
|
|
{
|
|
arg += 8;
|
|
(void)getdigits(&arg);
|
|
fname = vim_strnsave(name, arg - name);
|
|
}
|
|
else
|
|
{
|
|
// First try finding a method in a class, trans_function_name() will
|
|
// give an error if the function is not found.
|
|
ufunc = find_class_func(&arg);
|
|
if (ufunc != NULL)
|
|
return ufunc;
|
|
|
|
fname = trans_function_name_ext(&arg, &is_global, FALSE,
|
|
TFN_INT | TFN_QUIET | TFN_NO_AUTOLOAD | TFN_NO_DECL,
|
|
NULL, NULL, NULL, &ufunc);
|
|
if (ufunc != NULL)
|
|
{
|
|
vim_free(fname);
|
|
return ufunc;
|
|
}
|
|
}
|
|
if (fname == NULL)
|
|
{
|
|
semsg(_(e_invalid_argument_str), name);
|
|
return NULL;
|
|
}
|
|
if (!ends_excmd2(name, arg))
|
|
{
|
|
vim_free(fname);
|
|
emsg(ex_errmsg(e_trailing_characters_str, arg));
|
|
return NULL;
|
|
}
|
|
|
|
ufunc = find_func(fname, is_global);
|
|
if (ufunc == NULL)
|
|
{
|
|
char_u *p = untrans_function_name(fname);
|
|
|
|
if (p != NULL)
|
|
// Try again without making it script-local.
|
|
ufunc = find_func(p, FALSE);
|
|
}
|
|
vim_free(fname);
|
|
if (ufunc == NULL)
|
|
semsg(_(e_cannot_find_function_str), name);
|
|
return ufunc;
|
|
}
|
|
|
|
/*
|
|
* Compile the :def function "ufunc". If "cl" is not NULL, then compile the
|
|
* class or object method "ufunc" in "cl".
|
|
*/
|
|
void
|
|
defcompile_function(ufunc_T *ufunc, class_T *cl)
|
|
{
|
|
compiletype_T compile_type = CT_NONE;
|
|
|
|
if (func_needs_compiling(ufunc, compile_type))
|
|
(void)compile_def_function(ufunc, FALSE, compile_type, NULL);
|
|
else
|
|
smsg(_("Function %s%s%s does not need compiling"),
|
|
cl != NULL ? cl->class_name : (char_u *)"",
|
|
cl != NULL ? (char_u *)"." : (char_u *)"",
|
|
ufunc->uf_name);
|
|
}
|
|
|
|
/*
|
|
* Compile all the :def functions defined in the current script
|
|
*/
|
|
static void
|
|
defcompile_funcs_in_script(void)
|
|
{
|
|
long todo = (long)func_hashtab.ht_used;
|
|
int changed = func_hashtab.ht_changed;
|
|
hashitem_T *hi;
|
|
|
|
for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi)
|
|
{
|
|
if (!HASHITEM_EMPTY(hi))
|
|
{
|
|
--todo;
|
|
ufunc_T *ufunc = HI2UF(hi);
|
|
if (ufunc->uf_script_ctx.sc_sid == current_sctx.sc_sid
|
|
&& ufunc->uf_def_status == UF_TO_BE_COMPILED
|
|
&& (ufunc->uf_flags & FC_DEAD) == 0)
|
|
{
|
|
(void)compile_def_function(ufunc, FALSE, CT_NONE, NULL);
|
|
|
|
if (func_hashtab.ht_changed != changed)
|
|
{
|
|
// a function has been added or removed, need to start
|
|
// over
|
|
todo = (long)func_hashtab.ht_used;
|
|
changed = func_hashtab.ht_changed;
|
|
hi = func_hashtab.ht_array;
|
|
--hi;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* :defcompile - compile all :def functions in the current script that need to
|
|
* be compiled or the one specified by the argument.
|
|
* Skips dead functions. Doesn't do profiling.
|
|
*/
|
|
void
|
|
ex_defcompile(exarg_T *eap)
|
|
{
|
|
if (*eap->arg != NUL)
|
|
{
|
|
typval_T tv;
|
|
|
|
if (is_class_name(eap->arg, &tv))
|
|
{
|
|
class_T *cl = tv.vval.v_class;
|
|
|
|
if (cl != NULL)
|
|
defcompile_class(cl);
|
|
}
|
|
else
|
|
{
|
|
compiletype_T compile_type = CT_NONE;
|
|
ufunc_T *ufunc = find_func_by_name(eap->arg, &compile_type);
|
|
if (ufunc != NULL)
|
|
defcompile_function(ufunc, NULL);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
defcompile_funcs_in_script();
|
|
|
|
// compile all the class defined in the current script
|
|
defcompile_classes_in_script();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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, int is_global)
|
|
{
|
|
if (builtin_function(name, -1))
|
|
return has_internal_func(name);
|
|
return find_func(name, is_global) != NULL;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE when "ufunc" has old-style "..." varargs
|
|
* or named varargs "...name: type".
|
|
*/
|
|
int
|
|
has_varargs(ufunc_T *ufunc)
|
|
{
|
|
return ufunc->uf_varargs || ufunc->uf_va_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;
|
|
int is_global = FALSE;
|
|
|
|
flag = TFN_INT | TFN_QUIET | TFN_NO_AUTOLOAD;
|
|
if (no_deref)
|
|
flag |= TFN_NO_DEREF;
|
|
p = trans_function_name(&nm, &is_global, FALSE, flag);
|
|
nm = skipwhite(nm);
|
|
|
|
// Only accept "funcname", "funcname ", "funcname (..." and
|
|
// "funcname(...", not "funcname!...".
|
|
if (p != NULL && (*nm == NUL || *nm == '('))
|
|
n = translated_function_exists(p, is_global);
|
|
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;
|
|
int is_global = FALSE;
|
|
|
|
p = trans_function_name(&nm, &is_global, FALSE, TFN_INT|TFN_QUIET);
|
|
|
|
if (p != NULL && *nm == NUL
|
|
&& (!check || translated_function_exists(p, is_global)))
|
|
return p;
|
|
|
|
vim_free(p);
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* 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 int changed;
|
|
static hashitem_T *hi;
|
|
ufunc_T *fp;
|
|
|
|
if (idx == 0)
|
|
{
|
|
done = 0;
|
|
hi = func_hashtab.ht_array;
|
|
changed = func_hashtab.ht_changed;
|
|
}
|
|
if (changed == func_hashtab.ht_changed && done < func_hashtab.ht_used)
|
|
{
|
|
int len;
|
|
|
|
if (done++ > 0)
|
|
++hi;
|
|
while (HASHITEM_EMPTY(hi))
|
|
++hi;
|
|
fp = HI2UF(hi);
|
|
|
|
// don't show dead, dict and lambda functions
|
|
if ((fp->uf_flags & FC_DEAD) || (fp->uf_flags & FC_DICT)
|
|
|| STRNCMP(fp->uf_name, "<lambda>", 8) == 0)
|
|
return (char_u *)"";
|
|
|
|
if (fp->uf_namelen + 4 >= IOSIZE)
|
|
return fp->uf_name; // prevents overflow
|
|
|
|
len = cat_func_name(IObuff, IOSIZE, fp);
|
|
if (xp->xp_context != EXPAND_USER_FUNC
|
|
&& xp->xp_context != EXPAND_DISASSEMBLE)
|
|
{
|
|
STRCPY(IObuff + len, "(");
|
|
if (!has_varargs(fp) && fp->uf_args.ga_len == 0)
|
|
{
|
|
++len;
|
|
STRCPY(IObuff + len, ")");
|
|
}
|
|
}
|
|
return IObuff;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Make a copy of a function.
|
|
* Intended to be used for a function defined on a base class that has a copy
|
|
* on the child class.
|
|
* The copy has uf_refcount set to one.
|
|
* Returns NULL when out of memory.
|
|
*/
|
|
ufunc_T *
|
|
copy_function(ufunc_T *fp)
|
|
{
|
|
ufunc_T *ufunc = alloc_ufunc(fp->uf_name, fp->uf_namelen);
|
|
if (ufunc == NULL)
|
|
return NULL;
|
|
|
|
// Most things can just be copied.
|
|
*ufunc = *fp;
|
|
|
|
ufunc->uf_def_status = UF_TO_BE_COMPILED;
|
|
ufunc->uf_dfunc_idx = 0;
|
|
ufunc->uf_class = NULL;
|
|
|
|
ga_copy_strings(&fp->uf_args, &ufunc->uf_args);
|
|
ga_copy_strings(&fp->uf_def_args, &ufunc->uf_def_args);
|
|
|
|
if (ufunc->uf_arg_types != NULL)
|
|
{
|
|
// "uf_arg_types" is an allocated array, make a copy.
|
|
type_T **at = ALLOC_CLEAR_MULT(type_T *, ufunc->uf_args.ga_len);
|
|
if (at != NULL)
|
|
{
|
|
mch_memmove(at, ufunc->uf_arg_types,
|
|
sizeof(type_T *) * ufunc->uf_args.ga_len);
|
|
ufunc->uf_arg_types = at;
|
|
}
|
|
}
|
|
|
|
// TODO: how about the types themselves? they can be freed when the
|
|
// original function is freed:
|
|
// type_T **uf_arg_types;
|
|
// type_T *uf_ret_type;
|
|
|
|
// make uf_type_list empty
|
|
ga_init(&ufunc->uf_type_list);
|
|
|
|
// TODO: partial_T *uf_partial;
|
|
|
|
if (ufunc->uf_va_name != NULL)
|
|
ufunc->uf_va_name = vim_strsave(ufunc->uf_va_name);
|
|
|
|
// TODO:
|
|
// type_T *uf_va_type;
|
|
// type_T *uf_func_type;
|
|
|
|
ufunc->uf_block_depth = 0;
|
|
ufunc->uf_block_ids = NULL;
|
|
|
|
ga_copy_strings(&fp->uf_lines, &ufunc->uf_lines);
|
|
|
|
ufunc->uf_refcount = 1;
|
|
|
|
return ufunc;
|
|
}
|
|
|
|
/*
|
|
* ":delfunction {name}"
|
|
*/
|
|
void
|
|
ex_delfunction(exarg_T *eap)
|
|
{
|
|
ufunc_T *fp = NULL;
|
|
char_u *p;
|
|
char_u *name;
|
|
funcdict_T fudi;
|
|
int is_global = FALSE;
|
|
|
|
p = eap->arg;
|
|
name = trans_function_name_ext(&p, &is_global, eap->skip, 0, &fudi,
|
|
NULL, NULL, NULL);
|
|
vim_free(fudi.fd_newkey);
|
|
if (name == NULL)
|
|
{
|
|
if (fudi.fd_dict != NULL && !eap->skip)
|
|
emsg(_(e_funcref_required));
|
|
return;
|
|
}
|
|
if (!ends_excmd(*skipwhite(p)))
|
|
{
|
|
vim_free(name);
|
|
semsg(_(e_trailing_characters_str), p);
|
|
return;
|
|
}
|
|
set_nextcmd(eap, p);
|
|
if (eap->nextcmd != NULL)
|
|
*p = NUL;
|
|
|
|
if (numbered_function(name) && fudi.fd_dict == NULL)
|
|
{
|
|
if (!eap->skip)
|
|
semsg(_(e_invalid_argument_str), eap->arg);
|
|
vim_free(name);
|
|
return;
|
|
}
|
|
if (!eap->skip)
|
|
fp = find_func(name, is_global);
|
|
vim_free(name);
|
|
|
|
if (!eap->skip)
|
|
{
|
|
if (fp == NULL)
|
|
{
|
|
if (!eap->forceit)
|
|
semsg(_(e_unknown_function_str), eap->arg);
|
|
return;
|
|
}
|
|
if (fp->uf_calls > 0)
|
|
{
|
|
semsg(_(e_cannot_delete_function_str_it_is_in_use), eap->arg);
|
|
return;
|
|
}
|
|
if (fp->uf_flags & FC_VIM9)
|
|
{
|
|
semsg(_(e_cannot_delete_vim9_script_function_str), 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, "delfunction");
|
|
}
|
|
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--;
|
|
}
|
|
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, FALSE);
|
|
if (fp == NULL && numbered_function(name))
|
|
{
|
|
#ifdef EXITFREE
|
|
if (!entered_free_all_mem)
|
|
#endif
|
|
internal_error("func_unref()");
|
|
}
|
|
func_ptr_unref(fp);
|
|
}
|
|
|
|
/*
|
|
* Unreference a Function: decrement the reference count and free it when it
|
|
* becomes zero.
|
|
* Also when it becomes one and uf_partial points to the function.
|
|
*/
|
|
void
|
|
func_ptr_unref(ufunc_T *fp)
|
|
{
|
|
if (fp != NULL && (--fp->uf_refcount <= 0
|
|
|| (fp->uf_refcount == 1 && fp->uf_partial != NULL
|
|
&& fp->uf_partial->pt_refcount <= 1
|
|
&& fp->uf_partial->pt_func == fp)))
|
|
{
|
|
// 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, FALSE);
|
|
if (fp != NULL)
|
|
++fp->uf_refcount;
|
|
else if (numbered_function(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->fc_l_varlist.lv_copyID != copyID
|
|
&& fc->fc_l_vars.dv_copyID != copyID
|
|
&& fc->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;
|
|
evalarg_T evalarg;
|
|
|
|
if (current_funccal == NULL)
|
|
{
|
|
emsg(_(e_return_not_inside_function));
|
|
return;
|
|
}
|
|
|
|
init_evalarg(&evalarg);
|
|
evalarg.eval_flags = eap->skip ? 0 : EVAL_EVALUATE;
|
|
|
|
if (eap->skip)
|
|
++emsg_skip;
|
|
|
|
eap->nextcmd = NULL;
|
|
if ((*arg != NUL && *arg != '|' && *arg != '\n')
|
|
&& eval0(arg, &rettv, eap, &evalarg) != 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
|
|
set_nextcmd(eap, arg);
|
|
|
|
if (eap->skip)
|
|
--emsg_skip;
|
|
clear_evalarg(&evalarg, eap);
|
|
}
|
|
|
|
/*
|
|
* Lower level implementation of "call". Only called when not skipping.
|
|
*/
|
|
static int
|
|
ex_call_inner(
|
|
exarg_T *eap,
|
|
char_u *name,
|
|
char_u **arg,
|
|
char_u *startarg,
|
|
funcexe_T *funcexe_init,
|
|
evalarg_T *evalarg)
|
|
{
|
|
linenr_T lnum;
|
|
int doesrange;
|
|
typval_T rettv;
|
|
int failed = FALSE;
|
|
|
|
lnum = eap->line1;
|
|
for ( ; lnum <= eap->line2; ++lnum)
|
|
{
|
|
funcexe_T funcexe;
|
|
|
|
if (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_invalid_range));
|
|
break;
|
|
}
|
|
curwin->w_cursor.lnum = lnum;
|
|
curwin->w_cursor.col = 0;
|
|
curwin->w_cursor.coladd = 0;
|
|
}
|
|
*arg = startarg;
|
|
|
|
funcexe = *funcexe_init;
|
|
funcexe.fe_doesrange = &doesrange;
|
|
rettv.v_type = VAR_UNKNOWN; // clear_tv() uses this
|
|
if (get_func_tv(name, -1, &rettv, arg, evalarg, &funcexe) == FAIL)
|
|
{
|
|
failed = TRUE;
|
|
break;
|
|
}
|
|
if (has_watchexpr())
|
|
dbg_check_breakpoint(eap);
|
|
|
|
// Handle a function returning a Funcref, Dictionary or List.
|
|
if (handle_subscript(arg, NULL, &rettv,
|
|
&EVALARG_EVALUATE, TRUE) == FAIL)
|
|
{
|
|
failed = TRUE;
|
|
break;
|
|
}
|
|
|
|
clear_tv(&rettv);
|
|
if (doesrange)
|
|
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;
|
|
}
|
|
return failed;
|
|
}
|
|
|
|
/*
|
|
* Core part of ":defer func(arg)". "arg" points to the "(" and is advanced.
|
|
* Returns FAIL or OK.
|
|
*/
|
|
static int
|
|
ex_defer_inner(
|
|
char_u *name,
|
|
char_u **arg,
|
|
type_T *type,
|
|
partial_T *partial,
|
|
evalarg_T *evalarg)
|
|
{
|
|
typval_T argvars[MAX_FUNC_ARGS + 1]; // vars for arguments
|
|
int partial_argc = 0; // number of partial arguments
|
|
int argcount = 0; // number of arguments found
|
|
int r;
|
|
|
|
if (current_funccal == NULL)
|
|
{
|
|
semsg(_(e_str_not_inside_function), "defer");
|
|
return FAIL;
|
|
}
|
|
if (partial != NULL)
|
|
{
|
|
if (partial->pt_dict != NULL)
|
|
{
|
|
emsg(_(e_cannot_use_partial_with_dictionary_for_defer));
|
|
return FAIL;
|
|
}
|
|
if (partial->pt_argc > 0)
|
|
{
|
|
int i;
|
|
|
|
partial_argc = partial->pt_argc;
|
|
for (i = 0; i < partial_argc; ++i)
|
|
copy_tv(&partial->pt_argv[i], &argvars[i]);
|
|
}
|
|
}
|
|
int is_builtin = builtin_function(name, -1);
|
|
r = get_func_arguments(arg, evalarg, FALSE,
|
|
argvars + partial_argc, &argcount, is_builtin);
|
|
argcount += partial_argc;
|
|
|
|
if (r == OK)
|
|
{
|
|
if (type != NULL)
|
|
{
|
|
// Check that the arguments are OK for the types of the funcref.
|
|
r = check_argument_types(type, argvars, argcount, NULL, name);
|
|
}
|
|
else if (is_builtin)
|
|
{
|
|
int idx = find_internal_func(name);
|
|
|
|
if (idx < 0)
|
|
{
|
|
emsg_funcname(e_unknown_function_str, name);
|
|
r = FAIL;
|
|
}
|
|
else if (check_internal_func(idx, argcount) == -1)
|
|
r = FAIL;
|
|
}
|
|
else
|
|
{
|
|
ufunc_T *ufunc = find_func(name, FALSE);
|
|
|
|
// we tolerate an unknown function here, it might be defined later
|
|
if (ufunc != NULL)
|
|
{
|
|
funcerror_T error = check_user_func_argcount(ufunc, argcount);
|
|
if (error != FCERR_UNKNOWN)
|
|
{
|
|
user_func_error(error, name, FALSE);
|
|
r = FAIL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (r == FAIL)
|
|
{
|
|
while (--argcount >= 0)
|
|
clear_tv(&argvars[argcount]);
|
|
return FAIL;
|
|
}
|
|
return add_defer(name, argcount, argvars);
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if currently inside a function call.
|
|
* Give an error message and return FALSE when not.
|
|
*/
|
|
int
|
|
can_add_defer(void)
|
|
{
|
|
if (!in_def_function() && get_current_funccal() == NULL)
|
|
{
|
|
semsg(_(e_str_not_inside_function), "defer");
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Add a deferred call for "name" with arguments "argvars[argcount]".
|
|
* Consumes "argvars[]".
|
|
* Caller must check that in_def_function() returns TRUE or current_funccal is
|
|
* not NULL.
|
|
* Returns OK or FAIL.
|
|
*/
|
|
int
|
|
add_defer(char_u *name, int argcount_arg, typval_T *argvars)
|
|
{
|
|
char_u *saved_name = vim_strsave(name);
|
|
int argcount = argcount_arg;
|
|
defer_T *dr;
|
|
int ret = FAIL;
|
|
|
|
if (saved_name == NULL)
|
|
goto theend;
|
|
if (in_def_function())
|
|
{
|
|
if (add_defer_function(saved_name, argcount, argvars) == OK)
|
|
argcount = 0;
|
|
}
|
|
else
|
|
{
|
|
if (current_funccal->fc_defer.ga_itemsize == 0)
|
|
ga_init2(¤t_funccal->fc_defer, sizeof(defer_T), 10);
|
|
if (ga_grow(¤t_funccal->fc_defer, 1) == FAIL)
|
|
goto theend;
|
|
dr = ((defer_T *)current_funccal->fc_defer.ga_data)
|
|
+ current_funccal->fc_defer.ga_len++;
|
|
dr->dr_name = saved_name;
|
|
dr->dr_argcount = argcount;
|
|
while (argcount > 0)
|
|
{
|
|
--argcount;
|
|
dr->dr_argvars[argcount] = argvars[argcount];
|
|
}
|
|
}
|
|
ret = OK;
|
|
|
|
theend:
|
|
while (--argcount >= 0)
|
|
clear_tv(&argvars[argcount]);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Invoked after a functions has finished: invoke ":defer" functions.
|
|
*/
|
|
static void
|
|
handle_defer_one(funccall_T *funccal)
|
|
{
|
|
int idx;
|
|
|
|
for (idx = funccal->fc_defer.ga_len - 1; idx >= 0; --idx)
|
|
{
|
|
defer_T *dr = ((defer_T *)funccal->fc_defer.ga_data) + idx;
|
|
|
|
if (dr->dr_name == NULL)
|
|
// already being called, can happen if function does ":qa"
|
|
continue;
|
|
|
|
funcexe_T funcexe;
|
|
CLEAR_FIELD(funcexe);
|
|
funcexe.fe_evaluate = TRUE;
|
|
|
|
typval_T rettv;
|
|
rettv.v_type = VAR_UNKNOWN; // clear_tv() uses this
|
|
|
|
char_u *name = dr->dr_name;
|
|
dr->dr_name = NULL;
|
|
|
|
// If the deferred function is called after an exception, then only the
|
|
// first statement in the function will be executed (because of the
|
|
// exception). So save and restore the try/catch/throw exception
|
|
// state.
|
|
exception_state_T estate;
|
|
exception_state_save(&estate);
|
|
exception_state_clear();
|
|
|
|
call_func(name, -1, &rettv, dr->dr_argcount, dr->dr_argvars, &funcexe);
|
|
|
|
exception_state_restore(&estate);
|
|
|
|
clear_tv(&rettv);
|
|
vim_free(name);
|
|
for (int i = dr->dr_argcount - 1; i >= 0; --i)
|
|
clear_tv(&dr->dr_argvars[i]);
|
|
}
|
|
ga_clear(&funccal->fc_defer);
|
|
}
|
|
|
|
static void
|
|
invoke_funccall_defer(funccall_T *fc)
|
|
{
|
|
if (fc->fc_ectx != NULL)
|
|
{
|
|
// :def function
|
|
unwind_def_callstack(fc->fc_ectx);
|
|
may_invoke_defer_funcs(fc->fc_ectx);
|
|
}
|
|
else
|
|
{
|
|
// legacy function
|
|
handle_defer_one(fc);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Called when exiting: call all defer functions.
|
|
*/
|
|
void
|
|
invoke_all_defer(void)
|
|
{
|
|
for (funccall_T *fc = current_funccal; fc != NULL; fc = fc->fc_caller)
|
|
invoke_funccall_defer(fc);
|
|
|
|
for (funccal_entry_T *fce = funccal_stack; fce != NULL; fce = fce->next)
|
|
for (funccall_T *fc = fce->top_funccal; fc != NULL; fc = fc->fc_caller)
|
|
invoke_funccall_defer(fc);
|
|
}
|
|
|
|
/*
|
|
* ":1,25call func(arg1, arg2)" function call.
|
|
* ":defer func(arg1, arg2)" deferred function call.
|
|
*/
|
|
void
|
|
ex_call(exarg_T *eap)
|
|
{
|
|
char_u *arg = eap->arg;
|
|
char_u *startarg;
|
|
char_u *name;
|
|
char_u *tofree;
|
|
int len;
|
|
int failed = FALSE;
|
|
funcdict_T fudi;
|
|
ufunc_T *ufunc = NULL;
|
|
partial_T *partial = NULL;
|
|
evalarg_T evalarg;
|
|
type_T *type = NULL;
|
|
int found_var = FALSE;
|
|
int vim9script = in_vim9script();
|
|
|
|
fill_evalarg_from_eap(&evalarg, eap, eap->skip);
|
|
if (eap->skip)
|
|
{
|
|
typval_T rettv;
|
|
|
|
// 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, &evalarg) != FAIL)
|
|
clear_tv(&rettv);
|
|
--emsg_skip;
|
|
clear_evalarg(&evalarg, eap);
|
|
return;
|
|
}
|
|
|
|
tofree = trans_function_name_ext(&arg, NULL, FALSE, TFN_INT,
|
|
&fudi, &partial, vim9script ? &type : NULL, &ufunc);
|
|
if (fudi.fd_newkey != NULL)
|
|
{
|
|
// Still need to give an error message for missing key.
|
|
semsg(_(e_key_not_present_in_dictionary_str), 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,
|
|
vim9script && type == NULL ? &type : NULL,
|
|
FALSE, FALSE, &found_var);
|
|
|
|
// Skip white space to allow ":call func ()". Not good, but required for
|
|
// backward compatibility.
|
|
startarg = skipwhite(arg);
|
|
if (*startarg != '(')
|
|
{
|
|
semsg(_(e_missing_parenthesis_str), eap->arg);
|
|
goto end;
|
|
}
|
|
if (vim9script && startarg > arg)
|
|
{
|
|
semsg(_(e_no_white_space_allowed_before_str_str), "(", eap->arg);
|
|
goto end;
|
|
}
|
|
|
|
if (eap->cmdidx == CMD_defer)
|
|
{
|
|
arg = startarg;
|
|
failed = ex_defer_inner(name, &arg, type, partial, &evalarg) == FAIL;
|
|
}
|
|
else
|
|
{
|
|
funcexe_T funcexe;
|
|
|
|
CLEAR_FIELD(funcexe);
|
|
funcexe.fe_check_type = type;
|
|
funcexe.fe_ufunc = ufunc;
|
|
funcexe.fe_partial = partial;
|
|
funcexe.fe_selfdict = fudi.fd_dict;
|
|
funcexe.fe_firstline = eap->line1;
|
|
funcexe.fe_lastline = eap->line2;
|
|
funcexe.fe_found_var = found_var;
|
|
funcexe.fe_evaluate = TRUE;
|
|
failed = ex_call_inner(eap, name, &arg, startarg, &funcexe, &evalarg);
|
|
}
|
|
|
|
// When inside :try we need to check for following "| catch" or "| endtry".
|
|
// Not when there was an error, but do check if an exception was thrown.
|
|
if ((!aborting() || did_throw) && (!failed || eap->cstack->cs_trylevel > 0))
|
|
{
|
|
// Check for trailing illegal characters and a following command.
|
|
arg = skipwhite(arg);
|
|
if (!ends_excmd2(eap->arg, arg))
|
|
{
|
|
if (!failed && !aborting())
|
|
{
|
|
emsg_severe = TRUE;
|
|
semsg(_(e_trailing_characters_str), arg);
|
|
}
|
|
}
|
|
else
|
|
set_nextcmd(eap, arg);
|
|
}
|
|
// Must be after using "arg", it may point into memory cleared here.
|
|
clear_evalarg(&evalarg, eap);
|
|
|
|
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;
|
|
cstack_T *cstack = eap->cstack;
|
|
|
|
if (reanimate)
|
|
// Undo the return.
|
|
current_funccal->fc_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->fc_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_out_of_memory));
|
|
}
|
|
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->fc_rettv->v_type = VAR_NUMBER;
|
|
current_funccal->fc_rettv->vval.v_number = 0;
|
|
}
|
|
}
|
|
report_make_pending(CSTP_RETURN, rettv);
|
|
}
|
|
else
|
|
{
|
|
current_funccal->fc_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->fc_rettv);
|
|
*current_funccal->fc_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];
|
|
size_t slen = 0;
|
|
size_t IObufflen;
|
|
|
|
if (rettv != NULL)
|
|
s = echo_string((typval_T *)rettv, &tofree, numbuf, 0);
|
|
if (s == NULL)
|
|
s = (char_u *)"";
|
|
else
|
|
slen = STRLEN(s);
|
|
|
|
STRCPY(IObuff, ":return ");
|
|
STRNCPY(IObuff + 8, s, IOSIZE - 8);
|
|
IObufflen = 8 + slen;
|
|
if (IObufflen >= IOSIZE)
|
|
{
|
|
STRCPY(IObuff + IOSIZE - 4, "...");
|
|
IObufflen = IOSIZE - 1;
|
|
}
|
|
vim_free(tofree);
|
|
return vim_strnsave(IObuff, IObufflen);
|
|
}
|
|
|
|
/*
|
|
* 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,
|
|
getline_opt_T options UNUSED)
|
|
{
|
|
funccall_T *fcp = (funccall_T *)cookie;
|
|
ufunc_T *fp = fcp->fc_func;
|
|
char_u *retval;
|
|
garray_T *gap; // growarray with function lines
|
|
|
|
// If breakpoints have been added/deleted need to check for it.
|
|
if (fcp->fc_dbg_tick != debug_tick)
|
|
{
|
|
fcp->fc_breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name,
|
|
SOURCING_LNUM);
|
|
fcp->fc_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->fc_returned)
|
|
retval = NULL;
|
|
else
|
|
{
|
|
// Skip NULL lines (continuation lines).
|
|
while (fcp->fc_linenr < gap->ga_len
|
|
&& ((char_u **)(gap->ga_data))[fcp->fc_linenr] == NULL)
|
|
++fcp->fc_linenr;
|
|
if (fcp->fc_linenr >= gap->ga_len)
|
|
retval = NULL;
|
|
else
|
|
{
|
|
retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->fc_linenr++]);
|
|
SOURCING_LNUM = fcp->fc_linenr;
|
|
#ifdef FEAT_PROFILE
|
|
if (do_profiling == PROF_YES)
|
|
func_line_start(cookie, SOURCING_LNUM);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
// Did we encounter a breakpoint?
|
|
if (fcp->fc_breakpoint != 0 && fcp->fc_breakpoint <= SOURCING_LNUM)
|
|
{
|
|
dbg_breakpoint(fp->uf_name, SOURCING_LNUM);
|
|
// Find next breakpoint.
|
|
fcp->fc_breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name,
|
|
SOURCING_LNUM);
|
|
fcp->fc_dbg_tick = debug_tick;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* 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->fc_func->uf_flags & FC_ABORT)
|
|
&& did_emsg && !aborted_in_try())
|
|
|| fcp->fc_returned);
|
|
}
|
|
|
|
/*
|
|
* return TRUE if cookie indicates a function which "abort"s on errors.
|
|
*/
|
|
int
|
|
func_has_abort(
|
|
void *cookie)
|
|
{
|
|
return ((funccall_T *)cookie)->fc_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;
|
|
ufunc_T *fp = NULL;
|
|
char_u fname_buf[FLEN_FIXED + 1];
|
|
dict_T *selfdict = selfdict_in;
|
|
|
|
if (rettv->v_type == VAR_PARTIAL && rettv->vval.v_partial != NULL
|
|
&& 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 == NULL ? NULL
|
|
: rettv->vval.v_partial->pt_name;
|
|
if (fname == NULL)
|
|
{
|
|
// There is no point binding a dict to a NULL function, just create
|
|
// a function reference.
|
|
rettv->v_type = VAR_FUNC;
|
|
rettv->vval.v_string = NULL;
|
|
}
|
|
else
|
|
{
|
|
char_u *tofree = NULL;
|
|
funcerror_T error;
|
|
|
|
// Translate "s:func" to the stored function name.
|
|
fname = fname_trans_sid(fname, fname_buf, &tofree, &error);
|
|
fp = find_func(fname, FALSE);
|
|
vim_free(tofree);
|
|
}
|
|
}
|
|
|
|
if (fp != NULL && (fp->uf_flags & FC_DICT))
|
|
{
|
|
partial_T *pt = ALLOC_CLEAR_ONE(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 = ALLOC_MULT(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)->fc_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)->fc_breakpoint;
|
|
}
|
|
|
|
/*
|
|
* Return the address holding the debug tick for a funccall cookie.
|
|
*/
|
|
int *
|
|
func_dbg_tick(void *cookie)
|
|
{
|
|
return &((funccall_T *)cookie)->fc_dbg_tick;
|
|
}
|
|
|
|
/*
|
|
* Return the nesting level for a funccall cookie.
|
|
*/
|
|
int
|
|
func_level(void *cookie)
|
|
{
|
|
return ((funccall_T *)cookie)->fc_level;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE when a function was ended by a ":return" command.
|
|
*/
|
|
int
|
|
current_func_returned(void)
|
|
{
|
|
return current_funccal->fc_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->fc_caller;
|
|
free_funccal_contents(fc);
|
|
did_free = TRUE;
|
|
did_free_funccal = TRUE;
|
|
}
|
|
else
|
|
pfc = &(*pfc)->fc_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->fc_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(void)
|
|
{
|
|
if (current_funccal == NULL || current_funccal->fc_l_vars.dv_refcount == 0)
|
|
return NULL;
|
|
return &get_funccal()->fc_l_vars.dv_hashtab;
|
|
}
|
|
|
|
/*
|
|
* Return the l: scope variable.
|
|
* Return NULL if there is no current funccal.
|
|
*/
|
|
dictitem_T *
|
|
get_funccal_local_var(void)
|
|
{
|
|
if (current_funccal == NULL || current_funccal->fc_l_vars.dv_refcount == 0)
|
|
return NULL;
|
|
return &get_funccal()->fc_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(void)
|
|
{
|
|
if (current_funccal == NULL || current_funccal->fc_l_vars.dv_refcount == 0)
|
|
return NULL;
|
|
return &get_funccal()->fc_l_avars.dv_hashtab;
|
|
}
|
|
|
|
/*
|
|
* Return the a: scope variable.
|
|
* Return NULL if there is no current funccal.
|
|
*/
|
|
dictitem_T *
|
|
get_funccal_args_var(void)
|
|
{
|
|
if (current_funccal == NULL || current_funccal->fc_l_vars.dv_refcount == 0)
|
|
return NULL;
|
|
return &get_funccal()->fc_l_avars_var;
|
|
}
|
|
|
|
/*
|
|
* List function variables, if there is a function.
|
|
*/
|
|
void
|
|
list_func_vars(int *first)
|
|
{
|
|
if (current_funccal != NULL && current_funccal->fc_l_vars.dv_refcount > 0)
|
|
list_hashtable_vars(¤t_funccal->fc_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 == ¤t_funccal->fc_l_vars.dv_hashtab)
|
|
return ¤t_funccal->fc_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->fc_func->uf_scoped == NULL)
|
|
return NULL;
|
|
|
|
// Search in parent scope, which can be referenced from a lambda.
|
|
current_funccal = current_funccal->fc_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->fc_func->uf_scoped)
|
|
break;
|
|
current_funccal = current_funccal->fc_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->fc_func->uf_scoped == NULL)
|
|
return NULL;
|
|
|
|
// Search in parent scope which is possible to reference from lambda
|
|
current_funccal = current_funccal->fc_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->fc_func->uf_scoped)
|
|
break;
|
|
current_funccal = current_funccal->fc_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)
|
|
{
|
|
funccall_T *fc;
|
|
|
|
for (fc = previous_funccal; fc != NULL; fc = fc->fc_caller)
|
|
{
|
|
fc->fc_copyID = copyID + 1;
|
|
if (set_ref_in_ht(&fc->fc_l_vars.dv_hashtab, copyID + 1, NULL)
|
|
|| set_ref_in_ht(&fc->fc_l_avars.dv_hashtab, copyID + 1, NULL)
|
|
|| set_ref_in_list_items(&fc->fc_l_varlist, copyID + 1, NULL))
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static int
|
|
set_ref_in_funccal(funccall_T *fc, int copyID)
|
|
{
|
|
if (fc->fc_copyID != copyID)
|
|
{
|
|
fc->fc_copyID = copyID;
|
|
if (set_ref_in_ht(&fc->fc_l_vars.dv_hashtab, copyID, NULL)
|
|
|| set_ref_in_ht(&fc->fc_l_avars.dv_hashtab, copyID, NULL)
|
|
|| set_ref_in_list_items(&fc->fc_l_varlist, copyID, NULL)
|
|
|| set_ref_in_func(NULL, fc->fc_func, copyID))
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Set "copyID" in all local vars and arguments in the call stack.
|
|
*/
|
|
int
|
|
set_ref_in_call_stack(int copyID)
|
|
{
|
|
funccall_T *fc;
|
|
funccal_entry_T *entry;
|
|
|
|
for (fc = current_funccal; fc != NULL; fc = fc->fc_caller)
|
|
if (set_ref_in_funccal(fc, copyID))
|
|
return TRUE;
|
|
|
|
// Also go through the funccal_stack.
|
|
for (entry = funccal_stack; entry != NULL; entry = entry->next)
|
|
for (fc = entry->top_funccal; fc != NULL; fc = fc->fc_caller)
|
|
if (set_ref_in_funccal(fc, copyID))
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Set "copyID" in all functions available by name.
|
|
*/
|
|
int
|
|
set_ref_in_functions(int copyID)
|
|
{
|
|
int todo;
|
|
hashitem_T *hi = NULL;
|
|
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)
|
|
&& set_ref_in_func(NULL, fp, copyID))
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Set "copyID" in all function arguments.
|
|
*/
|
|
int
|
|
set_ref_in_func_args(int copyID)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < funcargs.ga_len; ++i)
|
|
if (set_ref_in_item(((typval_T **)funcargs.ga_data)[i],
|
|
copyID, NULL, NULL))
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
funcerror_T error = FCERR_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, FALSE);
|
|
}
|
|
if (fp != NULL)
|
|
{
|
|
for (fc = fp->uf_scoped; fc != NULL; fc = fc->fc_func->uf_scoped)
|
|
abort = abort || set_ref_in_funccal(fc, copyID);
|
|
}
|
|
|
|
vim_free(tofree);
|
|
return abort;
|
|
}
|
|
|
|
#endif // FEAT_EVAL
|