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https://github.com/vim/vim.git
synced 2025-09-24 03:44:06 -04:00
patch 8.2.4431: unnecessary condition when assigning to a variable
Problem: Unnecessary condition when assigning to a variable. Solution: Remove the condition.
This commit is contained in:
Bram Moolenaar
312
src/evalvars.c
312
src/evalvars.c
@@ -3409,7 +3409,7 @@ set_var_const(
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type_T *type = type_arg;
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typval_T bool_tv;
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dictitem_T *di;
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typval_T *dest_tv = NULL;
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typval_T *dest_tv;
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char_u *varname;
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char_u *name_tofree = NULL;
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hashtab_T *ht = NULL;
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@@ -3503,185 +3503,181 @@ set_var_const(
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}
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}
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if (dest_tv == NULL)
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// Search in parent scope which is possible to reference from lambda
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if (di == NULL)
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di = find_var_in_scoped_ht(name, TRUE);
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if ((tv->v_type == VAR_FUNC || tv->v_type == VAR_PARTIAL)
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&& var_wrong_func_name(name, di == NULL))
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goto failed;
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if (need_convert_to_bool(type, tv))
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{
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// Search in parent scope which is possible to reference from lambda
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if (di == NULL)
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di = find_var_in_scoped_ht(name, TRUE);
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// Destination is a bool and the value is not, but it can be
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// converted.
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CLEAR_FIELD(bool_tv);
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bool_tv.v_type = VAR_BOOL;
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bool_tv.vval.v_number = tv2bool(tv) ? VVAL_TRUE : VVAL_FALSE;
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tv = &bool_tv;
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}
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if ((tv->v_type == VAR_FUNC || tv->v_type == VAR_PARTIAL)
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&& var_wrong_func_name(name, di == NULL))
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goto failed;
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if (need_convert_to_bool(type, tv))
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if (di != NULL)
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{
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// Item already exists. Allowed to replace when reloading.
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if ((di->di_flags & DI_FLAGS_RELOAD) == 0)
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{
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// Destination is a bool and the value is not, but it can be
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// converted.
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CLEAR_FIELD(bool_tv);
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bool_tv.v_type = VAR_BOOL;
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bool_tv.vval.v_number = tv2bool(tv) ? VVAL_TRUE : VVAL_FALSE;
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tv = &bool_tv;
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}
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if (di != NULL)
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{
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// Item already exists. Allowed to replace when reloading.
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if ((di->di_flags & DI_FLAGS_RELOAD) == 0)
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if ((flags & (ASSIGN_CONST | ASSIGN_FINAL))
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&& (flags & ASSIGN_FOR_LOOP) == 0)
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{
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if ((flags & (ASSIGN_CONST | ASSIGN_FINAL))
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&& (flags & ASSIGN_FOR_LOOP) == 0)
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{
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emsg(_(e_cannot_modify_existing_variable));
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goto failed;
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}
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if (is_script_local && vim9script
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&& (flags & (ASSIGN_NO_DECL | ASSIGN_DECL)) == 0)
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{
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semsg(_(e_redefining_script_item_str), name);
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goto failed;
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}
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if (var_in_vim9script && (flags & ASSIGN_FOR_LOOP) == 0)
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{
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where_T where = WHERE_INIT;
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svar_T *sv = find_typval_in_script(&di->di_tv, sid);
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if (sv != NULL)
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{
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// check the type and adjust to bool if needed
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where.wt_index = var_idx;
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where.wt_variable = TRUE;
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if (check_script_var_type(sv, tv, name, where) == FAIL)
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goto failed;
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if (type == NULL)
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type = sv->sv_type;
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}
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}
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if ((flags & ASSIGN_FOR_LOOP) == 0
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&& var_check_permission(di, name) == FAIL)
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goto failed;
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}
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else
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{
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// can only redefine once
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di->di_flags &= ~DI_FLAGS_RELOAD;
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// A Vim9 script-local variable is also present in sn_all_vars
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// and sn_var_vals. It may set "type" from "tv".
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if (var_in_vim9script || var_in_autoload)
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update_vim9_script_var(FALSE, di,
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var_in_autoload ? name : di->di_key, flags,
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tv, &type, (flags & ASSIGN_NO_MEMBER_TYPE) == 0);
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emsg(_(e_cannot_modify_existing_variable));
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goto failed;
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}
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// existing variable, need to clear the value
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// Handle setting internal di: variables separately where needed to
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// prevent changing the type.
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if (ht == &vimvarht)
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{
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if (di->di_tv.v_type == VAR_STRING)
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{
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VIM_CLEAR(di->di_tv.vval.v_string);
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if (copy || tv->v_type != VAR_STRING)
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{
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char_u *val = tv_get_string(tv);
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// Careful: when assigning to v:errmsg and
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// tv_get_string() causes an error message the variable
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// will already be set.
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if (di->di_tv.vval.v_string == NULL)
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di->di_tv.vval.v_string = vim_strsave(val);
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}
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else
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{
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// Take over the string to avoid an extra alloc/free.
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di->di_tv.vval.v_string = tv->vval.v_string;
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tv->vval.v_string = NULL;
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}
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goto failed;
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}
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else if (di->di_tv.v_type == VAR_NUMBER)
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{
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di->di_tv.vval.v_number = tv_get_number(tv);
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if (STRCMP(varname, "searchforward") == 0)
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set_search_direction(di->di_tv.vval.v_number
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? '/' : '?');
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#ifdef FEAT_SEARCH_EXTRA
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else if (STRCMP(varname, "hlsearch") == 0)
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{
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no_hlsearch = !di->di_tv.vval.v_number;
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redraw_all_later(SOME_VALID);
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}
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#endif
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goto failed;
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}
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else if (di->di_tv.v_type != tv->v_type)
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{
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semsg(_(e_setting_str_to_value_with_wrong_type), name);
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goto failed;
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}
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}
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clear_tv(&di->di_tv);
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}
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else
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{
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// Item not found, check if a function already exists.
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if (is_script_local && (flags & (ASSIGN_NO_DECL | ASSIGN_DECL)) == 0
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&& lookup_scriptitem(name, STRLEN(name), FALSE, NULL) == OK)
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if (is_script_local && vim9script
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&& (flags & (ASSIGN_NO_DECL | ASSIGN_DECL)) == 0)
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{
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semsg(_(e_redefining_script_item_str), name);
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goto failed;
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}
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// add a new variable
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if (var_in_vim9script && (flags & ASSIGN_NO_DECL))
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if (var_in_vim9script && (flags & ASSIGN_FOR_LOOP) == 0)
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{
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semsg(_(e_unknown_variable_str), name);
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goto failed;
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where_T where = WHERE_INIT;
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svar_T *sv = find_typval_in_script(&di->di_tv, sid);
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if (sv != NULL)
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{
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// check the type and adjust to bool if needed
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where.wt_index = var_idx;
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where.wt_variable = TRUE;
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if (check_script_var_type(sv, tv, name, where) == FAIL)
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goto failed;
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if (type == NULL)
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type = sv->sv_type;
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}
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}
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// Can't add "v:" or "a:" variable.
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if (ht == &vimvarht || ht == get_funccal_args_ht())
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{
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semsg(_(e_illegal_variable_name_str), name);
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if ((flags & ASSIGN_FOR_LOOP) == 0
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&& var_check_permission(di, name) == FAIL)
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goto failed;
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}
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}
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else
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{
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// can only redefine once
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di->di_flags &= ~DI_FLAGS_RELOAD;
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// Make sure the variable name is valid. In Vim9 script an
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// autoload variable must be prefixed with "g:" unless in an
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// autoload script.
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if (!valid_varname(varname, -1, !vim9script
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|| STRNCMP(name, "g:", 2) == 0 || var_in_autoload))
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goto failed;
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di = alloc(sizeof(dictitem_T) + STRLEN(varname));
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if (di == NULL)
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goto failed;
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STRCPY(di->di_key, varname);
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if (hash_add(ht, DI2HIKEY(di)) == FAIL)
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{
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vim_free(di);
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goto failed;
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}
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di->di_flags = DI_FLAGS_ALLOC;
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if (flags & (ASSIGN_CONST | ASSIGN_FINAL))
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di->di_flags |= DI_FLAGS_LOCK;
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// A Vim9 script-local variable is also added to sn_all_vars and
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// sn_var_vals. It may set "type" from "tv".
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// A Vim9 script-local variable is also present in sn_all_vars
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// and sn_var_vals. It may set "type" from "tv".
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if (var_in_vim9script || var_in_autoload)
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update_vim9_script_var(TRUE, di,
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update_vim9_script_var(FALSE, di,
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var_in_autoload ? name : di->di_key, flags,
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tv, &type, (flags & ASSIGN_NO_MEMBER_TYPE) == 0);
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tv, &type, (flags & ASSIGN_NO_MEMBER_TYPE) == 0);
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}
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dest_tv = &di->di_tv;
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// existing variable, need to clear the value
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// Handle setting internal di: variables separately where needed to
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// prevent changing the type.
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if (ht == &vimvarht)
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{
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if (di->di_tv.v_type == VAR_STRING)
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{
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VIM_CLEAR(di->di_tv.vval.v_string);
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if (copy || tv->v_type != VAR_STRING)
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{
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char_u *val = tv_get_string(tv);
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// Careful: when assigning to v:errmsg and
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// tv_get_string() causes an error message the variable
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// will already be set.
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if (di->di_tv.vval.v_string == NULL)
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di->di_tv.vval.v_string = vim_strsave(val);
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}
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else
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{
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// Take over the string to avoid an extra alloc/free.
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di->di_tv.vval.v_string = tv->vval.v_string;
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tv->vval.v_string = NULL;
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}
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goto failed;
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}
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else if (di->di_tv.v_type == VAR_NUMBER)
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{
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di->di_tv.vval.v_number = tv_get_number(tv);
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if (STRCMP(varname, "searchforward") == 0)
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set_search_direction(di->di_tv.vval.v_number
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? '/' : '?');
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#ifdef FEAT_SEARCH_EXTRA
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else if (STRCMP(varname, "hlsearch") == 0)
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{
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no_hlsearch = !di->di_tv.vval.v_number;
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redraw_all_later(SOME_VALID);
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}
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#endif
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goto failed;
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}
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else if (di->di_tv.v_type != tv->v_type)
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{
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semsg(_(e_setting_str_to_value_with_wrong_type), name);
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goto failed;
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}
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}
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clear_tv(&di->di_tv);
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}
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else
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{
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// Item not found, check if a function already exists.
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if (is_script_local && (flags & (ASSIGN_NO_DECL | ASSIGN_DECL)) == 0
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&& lookup_scriptitem(name, STRLEN(name), FALSE, NULL) == OK)
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{
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semsg(_(e_redefining_script_item_str), name);
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goto failed;
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}
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// add a new variable
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if (var_in_vim9script && (flags & ASSIGN_NO_DECL))
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{
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semsg(_(e_unknown_variable_str), name);
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goto failed;
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}
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// Can't add "v:" or "a:" variable.
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if (ht == &vimvarht || ht == get_funccal_args_ht())
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{
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semsg(_(e_illegal_variable_name_str), name);
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goto failed;
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}
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// Make sure the variable name is valid. In Vim9 script an
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// autoload variable must be prefixed with "g:" unless in an
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// autoload script.
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if (!valid_varname(varname, -1, !vim9script
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|| STRNCMP(name, "g:", 2) == 0 || var_in_autoload))
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goto failed;
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di = alloc(sizeof(dictitem_T) + STRLEN(varname));
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if (di == NULL)
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goto failed;
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STRCPY(di->di_key, varname);
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if (hash_add(ht, DI2HIKEY(di)) == FAIL)
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{
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vim_free(di);
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goto failed;
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}
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di->di_flags = DI_FLAGS_ALLOC;
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if (flags & (ASSIGN_CONST | ASSIGN_FINAL))
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di->di_flags |= DI_FLAGS_LOCK;
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// A Vim9 script-local variable is also added to sn_all_vars and
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// sn_var_vals. It may set "type" from "tv".
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if (var_in_vim9script || var_in_autoload)
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update_vim9_script_var(TRUE, di,
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var_in_autoload ? name : di->di_key, flags,
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tv, &type, (flags & ASSIGN_NO_MEMBER_TYPE) == 0);
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}
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dest_tv = &di->di_tv;
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if (copy || tv->v_type == VAR_NUMBER || tv->v_type == VAR_FLOAT)
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copy_tv(tv, dest_tv);
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else
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