Mercurial > vim
annotate src/vim9class.c @ 31447:8cb31f7ac9e2 v9.0.1056
patch 9.0.1056: leaking memory when disassembling an object method
Commit: https://github.com/vim/vim/commit/eb53350c02f620305e931ffd2ac611cc2b1a0ce9
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Dec 14 15:06:11 2022 +0000
patch 9.0.1056: leaking memory when disassembling an object method
Problem: Leaking memory when disassembling an object method.
Solution: Free the typval of the class.
author | Bram Moolenaar <Bram@vim.org> |
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date | Wed, 14 Dec 2022 16:15:04 +0100 |
parents | 9ae3720f9bd9 |
children | 5ef28f5ff357 |
rev | line source |
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
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2 * |
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3 * VIM - Vi IMproved by Bram Moolenaar |
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4 * |
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5 * Do ":help uganda" in Vim to read copying and usage conditions. |
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6 * Do ":help credits" in Vim to see a list of people who contributed. |
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7 * See README.txt for an overview of the Vim source code. |
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8 */ |
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9 |
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10 /* |
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11 * vim9class.c: Vim9 script class support |
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12 */ |
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13 |
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14 #define USING_FLOAT_STUFF |
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15 #include "vim.h" |
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16 |
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17 #if defined(FEAT_EVAL) || defined(PROTO) |
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18 |
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19 // When not generating protos this is included in proto.h |
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20 #ifdef PROTO |
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21 # include "vim9.h" |
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22 #endif |
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23 |
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24 /* |
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25 * Handle ":class" and ":abstract class" up to ":endclass". |
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26 */ |
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27 void |
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28 ex_class(exarg_T *eap) |
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29 { |
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30 if (!current_script_is_vim9() |
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31 || (cmdmod.cmod_flags & CMOD_LEGACY) |
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32 || !getline_equal(eap->getline, eap->cookie, getsourceline)) |
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33 { |
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34 emsg(_(e_class_can_only_be_defined_in_vim9_script)); |
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35 return; |
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36 } |
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37 |
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38 char_u *arg = eap->arg; |
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39 int is_abstract = eap->cmdidx == CMD_abstract; |
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40 if (is_abstract) |
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41 { |
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42 if (STRNCMP(arg, "class", 5) != 0 || !VIM_ISWHITE(arg[5])) |
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43 { |
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44 semsg(_(e_invalid_argument_str), arg); |
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45 return; |
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46 } |
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47 arg = skipwhite(arg + 5); |
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48 } |
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49 |
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50 if (!ASCII_ISUPPER(*arg)) |
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51 { |
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52 semsg(_(e_class_name_must_start_with_uppercase_letter_str), arg); |
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53 return; |
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54 } |
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55 char_u *name_end = find_name_end(arg, NULL, NULL, FNE_CHECK_START); |
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56 if (!IS_WHITE_OR_NUL(*name_end)) |
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57 { |
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58 semsg(_(e_white_space_required_after_class_name_str), arg); |
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59 return; |
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60 } |
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61 |
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62 // TODO: |
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63 // generics: <Tkey, Tentry> |
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64 // extends SomeClass |
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65 // implements SomeInterface |
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66 // specifies SomeInterface |
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67 // check nothing follows |
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68 |
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69 // TODO: handle "is_export" if it is set |
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70 |
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71 garray_T type_list; // list of pointers to allocated types |
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72 ga_init2(&type_list, sizeof(type_T *), 10); |
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73 |
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74 // Growarray with object members declared in the class. |
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75 garray_T objmembers; |
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76 ga_init2(&objmembers, sizeof(objmember_T), 10); |
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77 |
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78 // Growarray with object methods declared in the class. |
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79 garray_T objmethods; |
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80 ga_init2(&objmethods, sizeof(ufunc_T *), 10); |
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81 |
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82 /* |
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83 * Go over the body of the class until "endclass" is found. |
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84 */ |
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85 char_u *theline = NULL; |
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86 int success = FALSE; |
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87 for (;;) |
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88 { |
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89 vim_free(theline); |
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90 theline = eap->getline(':', eap->cookie, 0, GETLINE_CONCAT_ALL); |
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91 if (theline == NULL) |
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92 break; |
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93 char_u *line = skipwhite(theline); |
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94 |
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95 // TODO: |
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96 // class members (public, read access, private): |
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97 // static varname |
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98 // public static varname |
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99 // static _varname |
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100 |
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101 char_u *p = line; |
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102 if (checkforcmd(&p, "endclass", 4)) |
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103 { |
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104 if (STRNCMP(line, "endclass", 8) != 0) |
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105 semsg(_(e_command_cannot_be_shortened_str), line); |
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106 else if (*p == '|' || !ends_excmd2(line, p)) |
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107 semsg(_(e_trailing_characters_str), p); |
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108 else |
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109 success = TRUE; |
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110 break; |
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111 } |
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112 |
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113 // "this.varname" |
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114 // "this._varname" |
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115 // TODO: |
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116 // "public this.varname" |
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117 if (STRNCMP(line, "this", 4) == 0) |
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118 { |
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119 if (line[4] != '.' || !eval_isnamec1(line[5])) |
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120 { |
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121 semsg(_(e_invalid_object_member_declaration_str), line); |
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122 break; |
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123 } |
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124 char_u *varname = line + 5; |
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125 char_u *varname_end = to_name_end(varname, FALSE); |
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126 |
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127 char_u *colon = skipwhite(varname_end); |
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128 char_u *type_arg = colon; |
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129 type_T *type = NULL; |
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130 if (*colon == ':') |
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131 { |
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132 if (VIM_ISWHITE(*varname_end)) |
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133 { |
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134 semsg(_(e_no_white_space_allowed_before_colon_str), |
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135 varname); |
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136 break; |
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137 } |
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138 if (!VIM_ISWHITE(colon[1])) |
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139 { |
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140 semsg(_(e_white_space_required_after_str_str), ":", |
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141 varname); |
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142 break; |
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143 } |
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144 type_arg = skipwhite(colon + 1); |
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145 type = parse_type(&type_arg, &type_list, TRUE); |
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146 if (type == NULL) |
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147 break; |
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148 } |
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149 |
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150 char_u *expr_start = skipwhite(type_arg); |
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151 char_u *expr_end = expr_start; |
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152 if (type == NULL && *expr_start != '=') |
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153 { |
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154 emsg(_(e_type_or_initialization_required)); |
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155 break; |
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156 } |
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157 |
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158 if (*expr_start == '=') |
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159 { |
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160 if (!VIM_ISWHITE(expr_start[-1]) || !VIM_ISWHITE(expr_start[1])) |
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161 { |
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162 semsg(_(e_white_space_required_before_and_after_str_at_str), |
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163 "=", type_arg); |
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164 break; |
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165 } |
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166 expr_start = skipwhite(expr_start + 1); |
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167 |
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168 expr_end = expr_start; |
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169 evalarg_T evalarg; |
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170 fill_evalarg_from_eap(&evalarg, eap, FALSE); |
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171 skip_expr(&expr_end, NULL); |
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172 |
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173 if (type == NULL) |
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174 { |
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175 // No type specified, use the type of the initializer. |
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176 typval_T tv; |
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177 tv.v_type = VAR_UNKNOWN; |
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178 char_u *expr = expr_start; |
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179 int res = eval0(expr, &tv, eap, &evalarg); |
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180 |
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181 if (res == OK) |
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182 type = typval2type(&tv, get_copyID(), &type_list, |
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183 TVTT_DO_MEMBER); |
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184 if (type == NULL) |
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185 { |
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186 semsg(_(e_cannot_get_object_member_type_from_initializer_str), |
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187 expr_start); |
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188 clear_evalarg(&evalarg, NULL); |
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189 break; |
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190 } |
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191 } |
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192 clear_evalarg(&evalarg, NULL); |
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193 } |
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194 if (!valid_declaration_type(type)) |
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195 break; |
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196 |
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197 if (ga_grow(&objmembers, 1) == FAIL) |
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198 break; |
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199 objmember_T *m = ((objmember_T *)objmembers.ga_data) |
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200 + objmembers.ga_len; |
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201 m->om_name = vim_strnsave(varname, varname_end - varname); |
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202 m->om_type = type; |
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203 if (expr_end > expr_start) |
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204 m->om_init = vim_strnsave(expr_start, expr_end - expr_start); |
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205 ++objmembers.ga_len; |
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206 } |
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207 |
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208 // constructors: |
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209 // def new() |
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210 // enddef |
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211 // def newOther() |
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212 // enddef |
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213 // methods: |
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214 // def someMethod() |
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215 // enddef |
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216 // TODO: |
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217 // static def someMethod() |
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218 // enddef |
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219 // def <Tval> someMethod() |
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220 // enddef |
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221 // static def <Tval> someMethod() |
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222 // enddef |
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223 else if (checkforcmd(&p, "def", 3)) |
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224 { |
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225 exarg_T ea; |
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226 garray_T lines_to_free; |
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227 |
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228 CLEAR_FIELD(ea); |
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229 ea.cmd = line; |
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230 ea.arg = p; |
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231 ea.cmdidx = CMD_def; |
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232 ea.getline = eap->getline; |
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233 ea.cookie = eap->cookie; |
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234 |
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235 ga_init2(&lines_to_free, sizeof(char_u *), 50); |
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236 ufunc_T *uf = define_function(&ea, NULL, &lines_to_free, TRUE); |
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237 ga_clear_strings(&lines_to_free); |
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238 |
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239 // TODO: how about errors? |
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240 if (uf != NULL && ga_grow(&objmethods, 1) == OK) |
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241 { |
31424
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242 if (STRNCMP(uf->uf_name, "new", 3) == 0) |
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243 uf->uf_flags |= FC_NEW; |
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244 |
31416
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245 ((ufunc_T **)objmethods.ga_data)[objmethods.ga_len] = uf; |
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246 ++objmethods.ga_len; |
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247 } |
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248 } |
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249 |
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250 else |
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251 { |
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252 semsg(_(e_not_valid_command_in_class_str), line); |
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253 break; |
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254 } |
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255 } |
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256 vim_free(theline); |
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257 |
31447
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258 class_T *cl = NULL; |
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259 if (success) |
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260 { |
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261 cl = ALLOC_CLEAR_ONE(class_T); |
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262 if (cl == NULL) |
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263 goto cleanup; |
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264 cl->class_refcount = 1; |
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265 cl->class_name = vim_strnsave(arg, name_end - arg); |
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266 |
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267 // Members are used by the new() function, add them here. |
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268 cl->class_obj_member_count = objmembers.ga_len; |
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269 cl->class_obj_members = objmembers.ga_len == 0 ? NULL |
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270 : ALLOC_MULT(objmember_T, objmembers.ga_len); |
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271 if (cl->class_name == NULL |
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272 || (objmembers.ga_len > 0 && cl->class_obj_members == NULL)) |
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273 goto cleanup; |
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274 mch_memmove(cl->class_obj_members, objmembers.ga_data, |
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275 sizeof(objmember_T) * objmembers.ga_len); |
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276 vim_free(objmembers.ga_data); |
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277 |
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278 int have_new = FALSE; |
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279 for (int i = 0; i < objmethods.ga_len; ++i) |
31416
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280 if (STRCMP(((ufunc_T **)objmethods.ga_data)[i]->uf_name, |
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281 "new") == 0) |
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282 { |
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283 have_new = TRUE; |
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284 break; |
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285 } |
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286 if (!have_new) |
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287 { |
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288 // No new() method was defined, add the default constructor. |
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289 garray_T fga; |
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290 ga_init2(&fga, 1, 1000); |
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291 ga_concat(&fga, (char_u *)"new("); |
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292 for (int i = 0; i < cl->class_obj_member_count; ++i) |
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293 { |
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294 if (i > 0) |
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295 ga_concat(&fga, (char_u *)", "); |
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296 ga_concat(&fga, (char_u *)"this."); |
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297 objmember_T *m = cl->class_obj_members + i; |
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298 ga_concat(&fga, (char_u *)m->om_name); |
31441
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patch 9.0.1053: default constructor arguments are not optional
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|
299 ga_concat(&fga, (char_u *)" = v:none"); |
31396
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300 } |
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301 ga_concat(&fga, (char_u *)")\nenddef\n"); |
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302 ga_append(&fga, NUL); |
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303 |
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304 exarg_T fea; |
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305 CLEAR_FIELD(fea); |
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306 fea.cmdidx = CMD_def; |
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307 fea.cmd = fea.arg = fga.ga_data; |
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308 |
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309 garray_T lines_to_free; |
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310 ga_init2(&lines_to_free, sizeof(char_u *), 50); |
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311 |
31416
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312 ufunc_T *nf = define_function(&fea, NULL, &lines_to_free, TRUE); |
31396
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313 |
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314 ga_clear_strings(&lines_to_free); |
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315 vim_free(fga.ga_data); |
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316 |
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317 if (nf != NULL && ga_grow(&objmethods, 1) == OK) |
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318 { |
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319 ((ufunc_T **)objmethods.ga_data)[objmethods.ga_len] = nf; |
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320 ++objmethods.ga_len; |
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321 |
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322 nf->uf_flags |= FC_NEW; |
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323 nf->uf_ret_type = get_type_ptr(&type_list); |
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324 if (nf->uf_ret_type != NULL) |
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325 { |
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326 nf->uf_ret_type->tt_type = VAR_OBJECT; |
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327 nf->uf_ret_type->tt_member = (type_T *)cl; |
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328 nf->uf_ret_type->tt_argcount = 0; |
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329 nf->uf_ret_type->tt_args = NULL; |
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330 } |
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331 } |
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332 } |
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333 |
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334 cl->class_obj_method_count = objmethods.ga_len; |
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335 cl->class_obj_methods = ALLOC_MULT(ufunc_T *, objmethods.ga_len); |
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336 if (cl->class_obj_methods == NULL) |
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337 goto cleanup; |
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338 mch_memmove(cl->class_obj_methods, objmethods.ga_data, |
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339 sizeof(ufunc_T *) * objmethods.ga_len); |
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340 vim_free(objmethods.ga_data); |
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341 |
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342 // Set the class pointer on all the object methods. |
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343 for (int i = 0; i < objmethods.ga_len; ++i) |
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344 { |
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345 ufunc_T *fp = cl->class_obj_methods[i]; |
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346 fp->uf_class = cl; |
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347 fp->uf_flags |= FC_OBJECT; // TODO: not for class method |
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348 } |
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349 |
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350 cl->class_type.tt_type = VAR_CLASS; |
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351 cl->class_type.tt_member = (type_T *)cl; |
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352 cl->class_object_type.tt_type = VAR_OBJECT; |
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353 cl->class_object_type.tt_member = (type_T *)cl; |
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354 cl->class_type_list = type_list; |
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355 |
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356 // TODO: |
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357 // - Add the methods to the class |
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358 // - array with ufunc_T pointers |
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359 // - Fill hashtab with object members and methods |
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360 // - Generate the default new() method, if needed. |
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361 // Later: |
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362 // - class members |
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363 // - class methods |
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364 |
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365 // Add the class to the script-local variables. |
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366 typval_T tv; |
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367 tv.v_type = VAR_CLASS; |
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368 tv.vval.v_class = cl; |
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369 set_var_const(cl->class_name, current_sctx.sc_sid, |
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370 NULL, &tv, FALSE, ASSIGN_DECL, 0); |
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371 return; |
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372 } |
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373 |
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374 cleanup: |
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375 if (cl != NULL) |
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376 { |
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377 vim_free(cl->class_name); |
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378 vim_free(cl->class_obj_members); |
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379 vim_free(cl->class_obj_methods); |
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380 vim_free(cl); |
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381 } |
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382 |
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383 for (int i = 0; i < objmembers.ga_len; ++i) |
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384 { |
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385 objmember_T *m = ((objmember_T *)objmembers.ga_data) + i; |
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386 vim_free(m->om_name); |
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387 vim_free(m->om_init); |
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388 } |
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389 ga_clear(&objmembers); |
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390 |
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391 for (int i = 0; i < objmethods.ga_len; ++i) |
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392 { |
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393 ufunc_T *uf = ((ufunc_T **)objmethods.ga_data)[i]; |
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394 func_clear_free(uf, FALSE); |
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395 } |
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396 ga_clear(&objmethods); |
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397 clear_type_list(&type_list); |
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398 } |
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399 |
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400 /* |
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401 * Find member "name" in class "cl" and return its type. |
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402 * When not found t_any is returned. |
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403 */ |
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404 type_T * |
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405 class_member_type( |
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406 class_T *cl, |
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407 char_u *name, |
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408 char_u *name_end, |
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409 int *member_idx) |
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410 { |
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411 *member_idx = -1; // not found (yet) |
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412 size_t len = name_end - name; |
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413 |
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414 for (int i = 0; i < cl->class_obj_member_count; ++i) |
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|
415 { |
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416 objmember_T *m = cl->class_obj_members + i; |
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417 if (STRNCMP(m->om_name, name, len) == 0 && m->om_name[len] == NUL) |
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418 { |
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419 *member_idx = i; |
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420 return m->om_type; |
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421 } |
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422 } |
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423 return &t_any; |
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424 } |
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425 |
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426 /* |
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427 * Handle ":interface" up to ":endinterface". |
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428 */ |
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429 void |
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|
430 ex_interface(exarg_T *eap UNUSED) |
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431 { |
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432 // TODO |
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433 } |
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|
434 |
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|
435 /* |
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436 * Handle ":enum" up to ":endenum". |
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|
437 */ |
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438 void |
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|
439 ex_enum(exarg_T *eap UNUSED) |
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440 { |
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|
441 // TODO |
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|
442 } |
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443 |
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444 /* |
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445 * Handle ":type". |
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446 */ |
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447 void |
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448 ex_type(exarg_T *eap UNUSED) |
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449 { |
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450 // TODO |
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451 } |
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452 |
31396
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453 /* |
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454 * Evaluate what comes after a class: |
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455 * - class member: SomeClass.varname |
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456 * - class method: SomeClass.SomeMethod() |
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457 * - class constructor: SomeClass.new() |
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458 * - object member: someObject.varname |
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459 * - object method: someObject.SomeMethod() |
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460 * |
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461 * "*arg" points to the '.'. |
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462 * "*arg" is advanced to after the member name or method call. |
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463 * |
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464 * Returns FAIL or OK. |
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465 */ |
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466 int |
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467 class_object_index( |
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468 char_u **arg, |
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469 typval_T *rettv, |
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470 evalarg_T *evalarg, |
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471 int verbose UNUSED) // give error messages |
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472 { |
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473 // int evaluate = evalarg != NULL |
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474 // && (evalarg->eval_flags & EVAL_EVALUATE); |
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475 |
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476 if (VIM_ISWHITE((*arg)[1])) |
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477 { |
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478 semsg(_(e_no_white_space_allowed_after_str_str), ".", *arg); |
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479 return FAIL; |
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480 } |
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481 |
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482 ++*arg; |
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483 char_u *name = *arg; |
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484 char_u *name_end = find_name_end(name, NULL, NULL, FNE_CHECK_START); |
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485 if (name_end == name) |
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486 return FAIL; |
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487 size_t len = name_end - name; |
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488 |
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489 class_T *cl = rettv->v_type == VAR_CLASS ? rettv->vval.v_class |
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490 : rettv->vval.v_object->obj_class; |
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491 if (*name_end == '(') |
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492 { |
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493 for (int i = 0; i < cl->class_obj_method_count; ++i) |
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494 { |
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495 ufunc_T *fp = cl->class_obj_methods[i]; |
31418
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patch 9.0.1042: ASAN gives false alarm about array access.
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496 // Use a separate pointer to avoid that ASAN complains about |
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497 // uf_name[] only being 4 characters. |
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498 char_u *ufname = (char_u *)fp->uf_name; |
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499 if (STRNCMP(name, ufname, len) == 0 && ufname[len] == NUL) |
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500 { |
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501 typval_T argvars[MAX_FUNC_ARGS + 1]; |
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502 int argcount = 0; |
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503 |
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504 char_u *argp = name_end; |
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505 int ret = get_func_arguments(&argp, evalarg, 0, |
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506 argvars, &argcount); |
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507 if (ret == FAIL) |
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508 return FAIL; |
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|
509 |
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510 funcexe_T funcexe; |
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511 CLEAR_FIELD(funcexe); |
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|
512 funcexe.fe_evaluate = TRUE; |
31416
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patch 9.0.1041: cannot define a method in a class
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changeset
|
513 if (rettv->v_type == VAR_OBJECT) |
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patch 9.0.1041: cannot define a method in a class
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changeset
|
514 { |
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|
515 funcexe.fe_object = rettv->vval.v_object; |
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|
516 ++funcexe.fe_object->obj_refcount; |
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|
517 } |
31396
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|
518 |
31404
60b1d266548d
patch 9.0.1035: object members are not being marked as used
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|
519 // Clear the class or object after calling the function, in |
60b1d266548d
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|
520 // case the refcount is one. |
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|
521 typval_T tv_tofree = *rettv; |
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522 rettv->v_type = VAR_UNKNOWN; |
60b1d266548d
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|
523 |
31396
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|
524 // Call the user function. Result goes into rettv; |
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525 int error = call_user_func_check(fp, argcount, argvars, |
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|
526 rettv, &funcexe, NULL); |
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changeset
|
527 |
31404
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|
528 // Clear the previous rettv and the arguments. |
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|
529 clear_tv(&tv_tofree); |
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|
530 for (int idx = 0; idx < argcount; ++idx) |
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|
531 clear_tv(&argvars[idx]); |
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Bram Moolenaar <Bram@vim.org>
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changeset
|
532 |
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patch 9.0.1031: Vim9 class is not implemented yet
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|
533 if (error != FCERR_NONE) |
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|
534 { |
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|
535 user_func_error(error, printable_func_name(fp), |
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|
536 funcexe.fe_found_var); |
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|
537 return FAIL; |
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|
538 } |
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|
539 *arg = argp; |
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|
540 return OK; |
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|
541 } |
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patch 9.0.1031: Vim9 class is not implemented yet
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|
542 } |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
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changeset
|
543 |
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|
544 semsg(_(e_method_not_found_on_class_str_str), cl->class_name, name); |
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changeset
|
545 } |
307f68a41b03
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diff
changeset
|
546 |
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changeset
|
547 else if (rettv->v_type == VAR_OBJECT) |
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changeset
|
548 { |
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patch 9.0.1031: Vim9 class is not implemented yet
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changeset
|
549 for (int i = 0; i < cl->class_obj_member_count; ++i) |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
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changeset
|
550 { |
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diff
changeset
|
551 objmember_T *m = &cl->class_obj_members[i]; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
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|
552 if (STRNCMP(name, m->om_name, len) == 0 && m->om_name[len] == NUL) |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
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changeset
|
553 { |
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patch 9.0.1031: Vim9 class is not implemented yet
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changeset
|
554 // The object only contains a pointer to the class, the member |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
555 // values array follows right after that. |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
556 object_T *obj = rettv->vval.v_object; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
557 typval_T *tv = (typval_T *)(obj + 1) + i; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
558 copy_tv(tv, rettv); |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
559 object_unref(obj); |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
560 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
561 *arg = name_end; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
562 return OK; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
563 } |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
564 } |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
565 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
566 semsg(_(e_member_not_found_on_object_str_str), cl->class_name, name); |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
567 } |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
568 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
569 // TODO: class member |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
570 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
571 return FAIL; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
572 } |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
573 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
574 /* |
31424
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
575 * If "arg" points to a class or object method, return it. |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
576 * Otherwise return NULL. |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
577 */ |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
578 ufunc_T * |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
579 find_class_func(char_u **arg) |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
580 { |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
581 char_u *name = *arg; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
582 char_u *name_end = find_name_end(name, NULL, NULL, FNE_CHECK_START); |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
583 if (name_end == name || *name_end != '.') |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
584 return NULL; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
585 |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
586 size_t len = name_end - name; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
587 typval_T tv; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
588 tv.v_type = VAR_UNKNOWN; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
589 if (eval_variable(name, len, 0, &tv, NULL, EVAL_VAR_NOAUTOLOAD) == FAIL) |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
590 return NULL; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
591 if (tv.v_type != VAR_CLASS && tv.v_type != VAR_OBJECT) |
31447
8cb31f7ac9e2
patch 9.0.1056: leaking memory when disassembling an object method
Bram Moolenaar <Bram@vim.org>
parents:
31443
diff
changeset
|
592 goto fail_after_eval; |
31424
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
593 |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
594 class_T *cl = tv.v_type == VAR_CLASS ? tv.vval.v_class |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
595 : tv.vval.v_object->obj_class; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
596 if (cl == NULL) |
31447
8cb31f7ac9e2
patch 9.0.1056: leaking memory when disassembling an object method
Bram Moolenaar <Bram@vim.org>
parents:
31443
diff
changeset
|
597 goto fail_after_eval; |
31424
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
598 char_u *fname = name_end + 1; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
599 char_u *fname_end = find_name_end(fname, NULL, NULL, FNE_CHECK_START); |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
600 if (fname_end == fname) |
31447
8cb31f7ac9e2
patch 9.0.1056: leaking memory when disassembling an object method
Bram Moolenaar <Bram@vim.org>
parents:
31443
diff
changeset
|
601 goto fail_after_eval; |
31424
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
602 len = fname_end - fname; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
603 |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
604 for (int i = 0; i < cl->class_obj_method_count; ++i) |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
605 { |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
606 ufunc_T *fp = cl->class_obj_methods[i]; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
607 // Use a separate pointer to avoid that ASAN complains about |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
608 // uf_name[] only being 4 characters. |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
609 char_u *ufname = (char_u *)fp->uf_name; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
610 if (STRNCMP(fname, ufname, len) == 0 && ufname[len] == NUL) |
31447
8cb31f7ac9e2
patch 9.0.1056: leaking memory when disassembling an object method
Bram Moolenaar <Bram@vim.org>
parents:
31443
diff
changeset
|
611 { |
8cb31f7ac9e2
patch 9.0.1056: leaking memory when disassembling an object method
Bram Moolenaar <Bram@vim.org>
parents:
31443
diff
changeset
|
612 clear_tv(&tv); |
31424
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
613 return fp; |
31447
8cb31f7ac9e2
patch 9.0.1056: leaking memory when disassembling an object method
Bram Moolenaar <Bram@vim.org>
parents:
31443
diff
changeset
|
614 } |
31424
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
615 } |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
616 |
31447
8cb31f7ac9e2
patch 9.0.1056: leaking memory when disassembling an object method
Bram Moolenaar <Bram@vim.org>
parents:
31443
diff
changeset
|
617 fail_after_eval: |
8cb31f7ac9e2
patch 9.0.1056: leaking memory when disassembling an object method
Bram Moolenaar <Bram@vim.org>
parents:
31443
diff
changeset
|
618 clear_tv(&tv); |
31424
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
619 return NULL; |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
620 } |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
621 |
e31fc75f6aff
patch 9.0.1045: in a class object members cannot be initialized
Bram Moolenaar <Bram@vim.org>
parents:
31418
diff
changeset
|
622 /* |
31396
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
623 * Make a copy of an object. |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
624 */ |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
625 void |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
626 copy_object(typval_T *from, typval_T *to) |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
627 { |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
628 *to = *from; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
629 if (to->vval.v_object != NULL) |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
630 ++to->vval.v_object->obj_refcount; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
631 } |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
632 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
633 /* |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
634 * Free an object. |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
635 */ |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
636 static void |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
637 object_clear(object_T *obj) |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
638 { |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
639 class_T *cl = obj->obj_class; |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
640 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
641 // the member values are just after the object structure |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
642 typval_T *tv = (typval_T *)(obj + 1); |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
643 for (int i = 0; i < cl->class_obj_member_count; ++i) |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
644 clear_tv(tv + i); |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
645 |
31404
60b1d266548d
patch 9.0.1035: object members are not being marked as used
Bram Moolenaar <Bram@vim.org>
parents:
31396
diff
changeset
|
646 // Remove from the list headed by "first_object". |
60b1d266548d
patch 9.0.1035: object members are not being marked as used
Bram Moolenaar <Bram@vim.org>
parents:
31396
diff
changeset
|
647 object_cleared(obj); |
60b1d266548d
patch 9.0.1035: object members are not being marked as used
Bram Moolenaar <Bram@vim.org>
parents:
31396
diff
changeset
|
648 |
31396
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
649 vim_free(obj); |
31404
60b1d266548d
patch 9.0.1035: object members are not being marked as used
Bram Moolenaar <Bram@vim.org>
parents:
31396
diff
changeset
|
650 class_unref(cl); |
31396
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
651 } |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
652 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
653 /* |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
654 * Unreference an object. |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
655 */ |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
656 void |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
657 object_unref(object_T *obj) |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
658 { |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
659 if (obj != NULL && --obj->obj_refcount <= 0) |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
660 object_clear(obj); |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
661 } |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
662 |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
663 /* |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
664 * Make a copy of a class. |
307f68a41b03
patch 9.0.1031: Vim9 class is not implemented yet
Bram Moolenaar <Bram@vim.org>
parents:
31335
diff
changeset
|
665 */ |
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patch 9.0.1031: Vim9 class is not implemented yet
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666 void |
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667 copy_class(typval_T *from, typval_T *to) |
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668 { |
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669 *to = *from; |
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670 if (to->vval.v_class != NULL) |
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671 ++to->vval.v_class->class_refcount; |
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672 } |
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673 |
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674 /* |
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675 * Unreference a class. Free it when the reference count goes down to zero. |
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676 */ |
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677 void |
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678 class_unref(class_T *cl) |
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679 { |
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680 if (cl != NULL && --cl->class_refcount <= 0) |
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681 { |
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682 vim_free(cl->class_name); |
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683 |
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684 for (int i = 0; i < cl->class_obj_member_count; ++i) |
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685 { |
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686 objmember_T *m = &cl->class_obj_members[i]; |
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687 vim_free(m->om_name); |
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688 vim_free(m->om_init); |
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689 } |
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690 vim_free(cl->class_obj_members); |
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691 |
31416
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692 for (int i = 0; i < cl->class_obj_method_count; ++i) |
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693 { |
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694 ufunc_T *uf = cl->class_obj_methods[i]; |
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695 func_clear_free(uf, FALSE); |
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696 } |
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697 vim_free(cl->class_obj_methods); |
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698 |
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699 clear_type_list(&cl->class_type_list); |
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700 |
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701 vim_free(cl); |
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702 } |
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703 } |
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704 |
31404
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705 static object_T *first_object = NULL; |
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706 |
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707 /* |
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708 * Call this function when an object has been created. It will be added to the |
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709 * list headed by "first_object". |
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710 */ |
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711 void |
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712 object_created(object_T *obj) |
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713 { |
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714 if (first_object != NULL) |
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715 { |
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716 obj->obj_next_used = first_object; |
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717 first_object->obj_prev_used = obj; |
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718 } |
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719 first_object = obj; |
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720 } |
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721 |
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722 /* |
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723 * Call this function when an object has been cleared and is about to be freed. |
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724 * It is removed from the list headed by "first_object". |
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725 */ |
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726 void |
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727 object_cleared(object_T *obj) |
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728 { |
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729 if (obj->obj_next_used != NULL) |
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730 obj->obj_next_used->obj_prev_used = obj->obj_prev_used; |
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731 if (obj->obj_prev_used != NULL) |
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732 obj->obj_prev_used->obj_next_used = obj->obj_next_used; |
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733 else if (first_object == obj) |
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734 first_object = obj->obj_next_used; |
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735 } |
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736 |
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737 /* |
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738 * Go through the list of all objects and free items without "copyID". |
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739 */ |
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740 int |
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741 object_free_nonref(int copyID) |
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742 { |
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|
743 int did_free = FALSE; |
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744 object_T *next_obj; |
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745 |
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746 for (object_T *obj = first_object; obj != NULL; obj = next_obj) |
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747 { |
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748 next_obj = obj->obj_next_used; |
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749 if ((obj->obj_copyID & COPYID_MASK) != (copyID & COPYID_MASK)) |
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750 { |
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751 // Free the object and items it contains. |
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|
752 object_clear(obj); |
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753 did_free = TRUE; |
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754 } |
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755 } |
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|
756 |
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|
757 return did_free; |
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patch 9.0.1035: object members are not being marked as used
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|
758 } |
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|
759 |
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|
760 |
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|
761 #endif // FEAT_EVAL |