1 | /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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2 | /* ***** BEGIN LICENSE BLOCK *****
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3 | * Version: NPL 1.1/GPL 2.0/LGPL 2.1
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4 | *
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5 | * The contents of this file are subject to the Netscape Public License
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6 | * Version 1.1 (the "License"); you may not use this file except in
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7 | * compliance with the License. You may obtain a copy of the License at
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8 | * http://www.mozilla.org/NPL/
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9 | *
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10 | * Software distributed under the License is distributed on an "AS IS" basis,
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11 | * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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12 | * for the specific language governing rights and limitations under the
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13 | * License.
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14 | *
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15 | * The Original Code is mozilla.org code.
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16 | *
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17 | * The Initial Developer of the Original Code is
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18 | * Netscape Communications Corporation.
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19 | * Portions created by the Initial Developer are Copyright (C) 1998
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20 | * the Initial Developer. All Rights Reserved.
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21 | *
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22 | * Contributor(s):
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23 | *
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24 | * Alternatively, the contents of this file may be used under the terms of
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25 | * either the GNU General Public License Version 2 or later (the "GPL"), or
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26 | * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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27 | * in which case the provisions of the GPL or the LGPL are applicable instead
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28 | * of those above. If you wish to allow use of your version of this file only
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29 | * under the terms of either the GPL or the LGPL, and not to allow others to
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30 | * use your version of this file under the terms of the NPL, indicate your
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31 | * decision by deleting the provisions above and replace them with the notice
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32 | * and other provisions required by the GPL or the LGPL. If you do not delete
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33 | * the provisions above, a recipient may use your version of this file under
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34 | * the terms of any one of the NPL, the GPL or the LGPL.
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35 | *
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36 | * ***** END LICENSE BLOCK ***** */
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37 |
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38 | /*
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39 | * Generate XPCOM headers from XPIDL.
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40 | */
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41 |
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42 | #include "xpidl.h"
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43 | #include <ctype.h>
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44 |
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45 | #define AS_DECL 0
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46 | #define AS_CALL 1
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47 | #define AS_IMPL 2
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48 |
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49 | static gboolean write_method_signature(IDL_tree method_tree, FILE *outfile,
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50 | int mode, const char *className);
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51 | static gboolean write_attr_accessor(IDL_tree attr_tree, FILE * outfile,
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52 | gboolean getter,
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53 | int mode, const char *className);
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54 |
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55 | static void
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56 | write_indent(FILE *outfile) {
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57 | fputs(" ", outfile);
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58 | }
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59 |
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60 | static gboolean
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61 | header_prolog(TreeState *state)
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62 | {
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63 | const char *define = xpidl_basename(state->basename);
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64 | fprintf(state->file, "/*\n * DO NOT EDIT. THIS FILE IS GENERATED FROM"
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65 | " %s.idl\n */\n", state->basename);
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66 | fprintf(state->file,
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67 | "\n#ifndef __gen_%s_h__\n"
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68 | "#define __gen_%s_h__\n",
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69 | define, define);
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70 | if (state->base_includes != NULL) {
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71 | guint len = g_slist_length(state->base_includes);
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72 | guint i;
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73 |
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74 | fputc('\n', state->file);
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75 | for (i = 0; i < len; i++) {
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76 | char *ident, *dot;
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77 |
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78 | ident = (char *)g_slist_nth_data(state->base_includes, i);
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79 |
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80 | /* suppress any trailing .extension */
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81 |
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82 | /* XXX use g_basename instead ? ? */
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83 |
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84 | dot = strrchr(ident, '.');
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85 | if (dot != NULL)
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86 | *dot = '\0';
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87 |
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88 |
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89 | /* begin include guard */
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90 | fprintf(state->file,
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91 | "\n#ifndef __gen_%s_h__\n",
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92 | ident);
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93 |
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94 | fprintf(state->file, "#include \"%s.h\"\n",
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95 | (char *)g_slist_nth_data(state->base_includes, i));
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96 |
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97 | fprintf(state->file, "#endif\n");
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98 |
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99 | }
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100 | if (i > 0)
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101 | fputc('\n', state->file);
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102 | }
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103 | /*
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104 | * Support IDL files that don't include a root IDL file that defines
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105 | * NS_NO_VTABLE.
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106 | */
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107 | fprintf(state->file,
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108 | "/* For IDL files that don't want to include root IDL files. */\n"
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109 | "#ifndef NS_NO_VTABLE\n"
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110 | "#define NS_NO_VTABLE\n"
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111 | "#endif\n");
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112 |
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113 | return TRUE;
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114 | }
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115 |
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116 | static gboolean
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117 | header_epilog(TreeState *state)
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118 | {
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119 | const char *define = xpidl_basename(state->basename);
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120 | fprintf(state->file, "\n#endif /* __gen_%s_h__ */\n", define);
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121 | return TRUE;
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122 | }
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123 |
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124 | static void
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125 | write_classname_iid_define(FILE *file, const char *className)
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126 | {
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127 | const char *iidName;
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128 | if (className[0] == 'n' && className[1] == 's') {
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129 | /* backcompat naming styles */
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130 | fputs("NS_", file);
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131 | iidName = className + 2;
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132 | } else {
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133 | iidName = className;
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134 | }
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135 | while (*iidName)
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136 | fputc(toupper(*iidName++), file);
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137 | fputs("_IID", file);
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138 | }
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139 |
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140 | static gboolean
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141 | interface(TreeState *state)
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142 | {
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143 | IDL_tree iface = state->tree, iter, orig;
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144 | char *className = IDL_IDENT(IDL_INTERFACE(iface).ident).str;
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145 | char *classNameUpper = NULL;
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146 | char *classNameImpl = NULL;
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147 | char *cp;
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148 | gboolean ok = TRUE;
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149 | gboolean keepvtable;
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150 | const char *iid;
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151 | const char *name_space;
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152 | struct nsID id;
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153 | char iid_parsed[UUID_LENGTH];
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154 | GSList *doc_comments = IDL_IDENT(IDL_INTERFACE(iface).ident).comments;
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155 |
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156 | if (!verify_interface_declaration(iface))
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157 | return FALSE;
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158 |
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159 | #define FAIL do {ok = FALSE; goto out;} while(0)
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160 |
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161 | fprintf(state->file, "\n/* starting interface: %s */\n",
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162 | className);
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163 |
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164 | name_space = IDL_tree_property_get(IDL_INTERFACE(iface).ident, "namespace");
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165 | if (name_space) {
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166 | fprintf(state->file, "/* namespace: %s */\n",
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167 | name_space);
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168 | fprintf(state->file, "/* fully qualified name: %s.%s */\n",
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169 | name_space,className);
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170 | }
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171 |
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172 | iid = IDL_tree_property_get(IDL_INTERFACE(iface).ident, "uuid");
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173 | if (iid) {
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174 | /* Redundant, but a better error than 'cannot parse.' */
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175 | if (strlen(iid) != 36) {
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176 | IDL_tree_error(state->tree, "IID %s is the wrong length\n", iid);
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177 | FAIL;
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178 | }
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179 |
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180 | /*
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181 | * Parse uuid and then output resulting nsID to string, to validate
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182 | * uuid and normalize resulting .h files.
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183 | */
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184 | if (!xpidl_parse_iid(&id, iid)) {
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185 | IDL_tree_error(state->tree, "cannot parse IID %s\n", iid);
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186 | FAIL;
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187 | }
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188 | if (!xpidl_sprint_iid(&id, iid_parsed)) {
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189 | IDL_tree_error(state->tree, "error formatting IID %s\n", iid);
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190 | FAIL;
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191 | }
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192 |
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193 | /* #define NS_ISUPPORTS_IID_STR "00000000-0000-0000-c000-000000000046" */
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194 | fputs("#define ", state->file);
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195 | write_classname_iid_define(state->file, className);
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196 | fprintf(state->file, "_STR \"%s\"\n", iid_parsed);
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197 | fputc('\n', state->file);
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198 |
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199 | /* #define NS_ISUPPORTS_IID { {0x00000000 .... 0x46 }} */
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200 | fprintf(state->file, "#define ");
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201 | write_classname_iid_define(state->file, className);
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202 | fprintf(state->file, " \\\n"
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203 | " {0x%.8x, 0x%.4x, 0x%.4x, \\\n"
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204 | " { 0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x, "
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205 | "0x%.2x, 0x%.2x, 0x%.2x, 0x%.2x }}\n",
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206 | id.m0, id.m1, id.m2,
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207 | id.m3[0], id.m3[1], id.m3[2], id.m3[3],
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208 | id.m3[4], id.m3[5], id.m3[6], id.m3[7]);
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209 | fputc('\n', state->file);
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210 | } else {
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211 | IDL_tree_error(state->tree, "interface %s lacks a uuid attribute\n",
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212 | className);
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213 | FAIL;
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214 | }
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215 |
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216 | if (doc_comments != NULL)
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217 | printlist(state->file, doc_comments);
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218 |
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219 | /*
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220 | * NS_NO_VTABLE is defined in nsISupportsUtils.h, and defined on windows
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221 | * to __declspec(novtable) on windows. This optimization is safe
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222 | * whenever the constructor calls no virtual methods. Writing in IDL
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223 | * almost guarantees this, except for the case when a %{C++ block occurs in
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224 | * the interface. We detect that case, and emit a macro call that disables
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225 | * the optimization.
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226 | */
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227 | keepvtable = FALSE;
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228 | for (iter = IDL_INTERFACE(state->tree).body;
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229 | iter != NULL;
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230 | iter = IDL_LIST(iter).next)
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231 | {
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232 | IDL_tree data = IDL_LIST(iter).data;
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233 | if (IDL_NODE_TYPE(data) == IDLN_CODEFRAG)
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234 | keepvtable = TRUE;
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235 | }
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236 |
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237 | /* The interface declaration itself. */
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238 | fprintf(state->file,
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239 | "class %s%s",
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240 | (keepvtable ? "" : "NS_NO_VTABLE "), className);
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241 |
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242 | if ((iter = IDL_INTERFACE(iface).inheritance_spec)) {
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243 | fputs(" : ", state->file);
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244 | if (IDL_LIST(iter).next != NULL) {
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245 | IDL_tree_error(iter,
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246 | "multiple inheritance is not supported by xpidl");
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247 | FAIL;
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248 | }
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249 | fprintf(state->file, "public %s", IDL_IDENT(IDL_LIST(iter).data).str);
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250 | }
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251 | fputs(" {\n"
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252 | " public: \n\n", state->file);
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253 | if (iid) {
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254 | fputs(" NS_DEFINE_STATIC_IID_ACCESSOR(", state->file);
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255 | write_classname_iid_define(state->file, className);
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256 | fputs(")\n\n", state->file);
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257 | }
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258 |
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259 | orig = state->tree; /* It would be nice to remove this state-twiddling. */
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260 |
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261 | state->tree = IDL_INTERFACE(iface).body;
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262 |
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263 | if (state->tree && !xpidl_process_node(state))
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264 | FAIL;
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265 |
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266 | fputs("};\n", state->file);
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267 | fputc('\n', state->file);
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268 |
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269 | /*
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270 | * #define NS_DECL_NSIFOO - create method prototypes that can be used in
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271 | * class definitions that support this interface.
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272 | *
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273 | * Walk the tree explicitly to prototype a reworking of xpidl to get rid of
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274 | * the callback mechanism.
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275 | */
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276 | state->tree = orig;
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277 | fputs("/* Use this macro when declaring classes that implement this "
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278 | "interface. */\n", state->file);
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279 | fputs("#define NS_DECL_", state->file);
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280 | classNameUpper = xpidl_strdup(className);
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281 | for (cp = classNameUpper; *cp != '\0'; cp++)
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282 | *cp = toupper(*cp);
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283 | fprintf(state->file, "%s \\\n", classNameUpper);
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284 | if (IDL_INTERFACE(state->tree).body == NULL) {
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285 | write_indent(state->file);
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286 | fputs("/* no methods! */\n", state->file);
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287 | }
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288 |
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289 | for (iter = IDL_INTERFACE(state->tree).body;
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290 | iter != NULL;
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291 | iter = IDL_LIST(iter).next)
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292 | {
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293 | IDL_tree data = IDL_LIST(iter).data;
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294 |
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295 | switch(IDL_NODE_TYPE(data)) {
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296 | case IDLN_OP_DCL:
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297 | write_indent(state->file);
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298 | write_method_signature(data, state->file, AS_DECL, NULL);
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299 | break;
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300 |
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301 | case IDLN_ATTR_DCL:
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302 | write_indent(state->file);
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303 | if (!write_attr_accessor(data, state->file, TRUE, AS_DECL, NULL))
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304 | FAIL;
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305 | if (!IDL_ATTR_DCL(data).f_readonly) {
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306 | fputs("; \\\n", state->file); /* Terminate the previous one. */
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307 | write_indent(state->file);
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308 | if (!write_attr_accessor(data, state->file,
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309 | FALSE, AS_DECL, NULL))
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310 | FAIL;
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311 | /* '; \n' at end will clean up. */
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312 | }
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313 | break;
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314 |
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315 | case IDLN_CONST_DCL:
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316 | /* ignore it here; it doesn't contribute to the macro. */
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317 | continue;
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318 |
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319 | case IDLN_CODEFRAG:
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320 | XPIDL_WARNING((iter, IDL_WARNING1,
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321 | "%%{ .. %%} code fragment within interface "
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322 | "ignored when generating NS_DECL_%s macro; "
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323 | "if the code fragment contains method "
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324 | "declarations, the macro probably isn't "
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325 | "complete.", classNameUpper));
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326 | continue;
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327 |
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328 | default:
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329 | IDL_tree_error(iter,
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330 | "unexpected node type %d! "
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331 | "Please file a bug against the xpidl component.",
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332 | IDL_NODE_TYPE(data));
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333 | FAIL;
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334 | }
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335 |
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336 | if (IDL_LIST(iter).next != NULL) {
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337 | fprintf(state->file, "; \\\n");
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338 | } else {
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339 | fprintf(state->file, "; \n");
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340 | }
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341 | }
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342 | fputc('\n', state->file);
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343 |
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344 | /* XXX abstract above and below into one function? */
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345 | /*
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346 | * #define NS_FORWARD_NSIFOO - create forwarding methods that can delegate
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347 | * behavior from in implementation to another object. As generated by
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348 | * idlc.
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349 | */
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350 | fprintf(state->file,
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351 | "/* Use this macro to declare functions that forward the "
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352 | "behavior of this interface to another object. */\n"
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353 | "#define NS_FORWARD_%s(_to) \\\n",
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354 | classNameUpper);
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355 | if (IDL_INTERFACE(state->tree).body == NULL) {
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356 | write_indent(state->file);
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357 | fputs("/* no methods! */\n", state->file);
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358 | }
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359 |
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360 | for (iter = IDL_INTERFACE(state->tree).body;
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361 | iter != NULL;
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362 | iter = IDL_LIST(iter).next)
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363 | {
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364 | IDL_tree data = IDL_LIST(iter).data;
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365 |
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366 | switch(IDL_NODE_TYPE(data)) {
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367 | case IDLN_OP_DCL:
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368 | write_indent(state->file);
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369 | write_method_signature(data, state->file, AS_DECL, NULL);
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370 | fputs(" { return _to ", state->file);
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371 | write_method_signature(data, state->file, AS_CALL, NULL);
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372 | break;
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373 |
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374 | case IDLN_ATTR_DCL:
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375 | write_indent(state->file);
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376 | if (!write_attr_accessor(data, state->file, TRUE, AS_DECL, NULL))
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377 | FAIL;
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378 | fputs(" { return _to ", state->file);
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379 | if (!write_attr_accessor(data, state->file, TRUE, AS_CALL, NULL))
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380 | FAIL;
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381 | if (!IDL_ATTR_DCL(data).f_readonly) {
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382 | fputs("; } \\\n", state->file); /* Terminate the previous one. */
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383 | write_indent(state->file);
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384 | if (!write_attr_accessor(data, state->file,
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385 | FALSE, AS_DECL, NULL))
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386 | FAIL;
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387 | fputs(" { return _to ", state->file);
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388 | if (!write_attr_accessor(data, state->file,
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389 | FALSE, AS_CALL, NULL))
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390 | FAIL;
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391 | /* '; } \n' at end will clean up. */
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392 | }
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393 | break;
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394 |
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395 | case IDLN_CONST_DCL:
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396 | case IDLN_CODEFRAG:
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397 | continue;
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398 |
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399 | default:
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400 | FAIL;
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401 | }
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402 |
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403 | if (IDL_LIST(iter).next != NULL) {
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404 | fprintf(state->file, "; } \\\n");
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405 | } else {
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406 | fprintf(state->file, "; } \n");
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407 | }
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408 | }
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409 | fputc('\n', state->file);
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410 |
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411 |
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412 | /* XXX abstract above and below into one function? */
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413 | /*
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414 | * #define NS_FORWARD_SAFE_NSIFOO - create forwarding methods that can delegate
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415 | * behavior from in implementation to another object. As generated by
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416 | * idlc.
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417 | */
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418 | fprintf(state->file,
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419 | "/* Use this macro to declare functions that forward the "
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420 | "behavior of this interface to another object in a safe way. */\n"
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421 | "#define NS_FORWARD_SAFE_%s(_to) \\\n",
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422 | classNameUpper);
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423 | if (IDL_INTERFACE(state->tree).body == NULL) {
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424 | write_indent(state->file);
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425 | fputs("/* no methods! */\n", state->file);
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426 | }
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427 |
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428 | for (iter = IDL_INTERFACE(state->tree).body;
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429 | iter != NULL;
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430 | iter = IDL_LIST(iter).next)
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431 | {
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432 | IDL_tree data = IDL_LIST(iter).data;
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433 |
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434 | switch(IDL_NODE_TYPE(data)) {
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435 | case IDLN_OP_DCL:
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436 | write_indent(state->file);
|
---|
437 | write_method_signature(data, state->file, AS_DECL, NULL);
|
---|
438 | fputs(" { return !_to ? NS_ERROR_NULL_POINTER : _to->", state->file);
|
---|
439 | write_method_signature(data, state->file, AS_CALL, NULL);
|
---|
440 | break;
|
---|
441 |
|
---|
442 | case IDLN_ATTR_DCL:
|
---|
443 | write_indent(state->file);
|
---|
444 | if (!write_attr_accessor(data, state->file, TRUE, AS_DECL, NULL))
|
---|
445 | FAIL;
|
---|
446 | fputs(" { return !_to ? NS_ERROR_NULL_POINTER : _to->", state->file);
|
---|
447 | if (!write_attr_accessor(data, state->file, TRUE, AS_CALL, NULL))
|
---|
448 | FAIL;
|
---|
449 | if (!IDL_ATTR_DCL(data).f_readonly) {
|
---|
450 | fputs("; } \\\n", state->file); /* Terminate the previous one. */
|
---|
451 | write_indent(state->file);
|
---|
452 | if (!write_attr_accessor(data, state->file,
|
---|
453 | FALSE, AS_DECL, NULL))
|
---|
454 | FAIL;
|
---|
455 | fputs(" { return !_to ? NS_ERROR_NULL_POINTER : _to->", state->file);
|
---|
456 | if (!write_attr_accessor(data, state->file,
|
---|
457 | FALSE, AS_CALL, NULL))
|
---|
458 | FAIL;
|
---|
459 | /* '; } \n' at end will clean up. */
|
---|
460 | }
|
---|
461 | break;
|
---|
462 |
|
---|
463 | case IDLN_CONST_DCL:
|
---|
464 | case IDLN_CODEFRAG:
|
---|
465 | continue;
|
---|
466 |
|
---|
467 | default:
|
---|
468 | FAIL;
|
---|
469 | }
|
---|
470 |
|
---|
471 | if (IDL_LIST(iter).next != NULL) {
|
---|
472 | fprintf(state->file, "; } \\\n");
|
---|
473 | } else {
|
---|
474 | fprintf(state->file, "; } \n");
|
---|
475 | }
|
---|
476 | }
|
---|
477 | fputc('\n', state->file);
|
---|
478 |
|
---|
479 | /*
|
---|
480 | * Build a sample implementation template.
|
---|
481 | */
|
---|
482 | if (strlen(className) >= 3 && className[2] == 'I') {
|
---|
483 | classNameImpl = xpidl_strdup(className);
|
---|
484 | if (!classNameImpl)
|
---|
485 | FAIL;
|
---|
486 | memmove(&classNameImpl[2], &classNameImpl[3], strlen(classNameImpl) - 2);
|
---|
487 | } else {
|
---|
488 | classNameImpl = xpidl_strdup("_MYCLASS_");
|
---|
489 | if (!classNameImpl)
|
---|
490 | FAIL;
|
---|
491 | }
|
---|
492 |
|
---|
493 | fputs("#if 0\n"
|
---|
494 | "/* Use the code below as a template for the "
|
---|
495 | "implementation class for this interface. */\n"
|
---|
496 | "\n"
|
---|
497 | "/* Header file */"
|
---|
498 | "\n",
|
---|
499 | state->file);
|
---|
500 | fprintf(state->file, "class %s : public %s\n", classNameImpl, className);
|
---|
501 | fputs("{\n"
|
---|
502 | "public:\n", state->file);
|
---|
503 | write_indent(state->file);
|
---|
504 | fputs("NS_DECL_ISUPPORTS\n", state->file);
|
---|
505 | write_indent(state->file);
|
---|
506 | fprintf(state->file, "NS_DECL_%s\n", classNameUpper);
|
---|
507 | fputs("\n", state->file);
|
---|
508 | write_indent(state->file);
|
---|
509 | fprintf(state->file, "%s();\n", classNameImpl);
|
---|
510 | fputs("\n"
|
---|
511 | "private:\n", state->file);
|
---|
512 | write_indent(state->file);
|
---|
513 | fprintf(state->file, "~%s();\n", classNameImpl);
|
---|
514 | fputs("\n"
|
---|
515 | "protected:\n", state->file);
|
---|
516 | write_indent(state->file);
|
---|
517 | fputs("/* additional members */\n", state->file);
|
---|
518 | fputs("};\n\n", state->file);
|
---|
519 |
|
---|
520 | fputs("/* Implementation file */\n", state->file);
|
---|
521 |
|
---|
522 | fprintf(state->file,
|
---|
523 | "NS_IMPL_ISUPPORTS1(%s, %s)\n", classNameImpl, className);
|
---|
524 | fputs("\n", state->file);
|
---|
525 |
|
---|
526 | fprintf(state->file, "%s::%s()\n", classNameImpl, classNameImpl);
|
---|
527 | fputs("{\n", state->file);
|
---|
528 | write_indent(state->file);
|
---|
529 | fputs("/* member initializers and constructor code */\n", state->file);
|
---|
530 | fputs("}\n\n", state->file);
|
---|
531 |
|
---|
532 | fprintf(state->file, "%s::~%s()\n", classNameImpl, classNameImpl);
|
---|
533 | fputs("{\n", state->file);
|
---|
534 | write_indent(state->file);
|
---|
535 | fputs("/* destructor code */\n", state->file);
|
---|
536 | fputs("}\n\n", state->file);
|
---|
537 |
|
---|
538 | for (iter = IDL_INTERFACE(state->tree).body;
|
---|
539 | iter != NULL;
|
---|
540 | iter = IDL_LIST(iter).next)
|
---|
541 | {
|
---|
542 | IDL_tree data = IDL_LIST(iter).data;
|
---|
543 |
|
---|
544 | switch(IDL_NODE_TYPE(data)) {
|
---|
545 | case IDLN_OP_DCL:
|
---|
546 | /* It would be nice to remove this state-twiddling. */
|
---|
547 | orig = state->tree;
|
---|
548 | state->tree = data;
|
---|
549 | xpidl_write_comment(state, 0);
|
---|
550 | state->tree = orig;
|
---|
551 |
|
---|
552 | write_method_signature(data, state->file, AS_IMPL, classNameImpl);
|
---|
553 | fputs("\n{\n", state->file);
|
---|
554 | write_indent(state->file);
|
---|
555 | write_indent(state->file);
|
---|
556 | fputs("return NS_ERROR_NOT_IMPLEMENTED;\n"
|
---|
557 | "}\n"
|
---|
558 | "\n", state->file);
|
---|
559 | break;
|
---|
560 |
|
---|
561 | case IDLN_ATTR_DCL:
|
---|
562 | /* It would be nice to remove this state-twiddling. */
|
---|
563 | orig = state->tree;
|
---|
564 | state->tree = data;
|
---|
565 | xpidl_write_comment(state, 0);
|
---|
566 | state->tree = orig;
|
---|
567 |
|
---|
568 | if (!write_attr_accessor(data, state->file, TRUE,
|
---|
569 | AS_IMPL, classNameImpl))
|
---|
570 | FAIL;
|
---|
571 | fputs("\n{\n", state->file);
|
---|
572 | write_indent(state->file);
|
---|
573 | write_indent(state->file);
|
---|
574 | fputs("return NS_ERROR_NOT_IMPLEMENTED;\n"
|
---|
575 | "}\n", state->file);
|
---|
576 |
|
---|
577 | if (!IDL_ATTR_DCL(data).f_readonly) {
|
---|
578 | if (!write_attr_accessor(data, state->file, FALSE,
|
---|
579 | AS_IMPL, classNameImpl))
|
---|
580 | FAIL;
|
---|
581 | fputs("\n{\n", state->file);
|
---|
582 | write_indent(state->file);
|
---|
583 | write_indent(state->file);
|
---|
584 | fputs("return NS_ERROR_NOT_IMPLEMENTED;\n"
|
---|
585 | "}\n", state->file);
|
---|
586 | }
|
---|
587 | fputs("\n", state->file);
|
---|
588 | break;
|
---|
589 |
|
---|
590 | case IDLN_CONST_DCL:
|
---|
591 | case IDLN_CODEFRAG:
|
---|
592 | continue;
|
---|
593 |
|
---|
594 | default:
|
---|
595 | FAIL;
|
---|
596 | }
|
---|
597 | }
|
---|
598 |
|
---|
599 | fputs("/* End of implementation class template. */\n"
|
---|
600 | "#endif\n"
|
---|
601 | "\n", state->file);
|
---|
602 |
|
---|
603 | #undef FAIL
|
---|
604 |
|
---|
605 | out:
|
---|
606 | if (classNameUpper)
|
---|
607 | free(classNameUpper);
|
---|
608 | if (classNameImpl)
|
---|
609 | free(classNameImpl);
|
---|
610 | return ok;
|
---|
611 | }
|
---|
612 |
|
---|
613 | static gboolean
|
---|
614 | list(TreeState *state)
|
---|
615 | {
|
---|
616 | IDL_tree iter;
|
---|
617 | for (iter = state->tree; iter; iter = IDL_LIST(iter).next) {
|
---|
618 | state->tree = IDL_LIST(iter).data;
|
---|
619 | if (!xpidl_process_node(state))
|
---|
620 | return FALSE;
|
---|
621 | }
|
---|
622 | return TRUE;
|
---|
623 | }
|
---|
624 |
|
---|
625 | static gboolean
|
---|
626 | write_type(IDL_tree type_tree, gboolean is_out, FILE *outfile)
|
---|
627 | {
|
---|
628 | if (!type_tree) {
|
---|
629 | fputs("void", outfile);
|
---|
630 | return TRUE;
|
---|
631 | }
|
---|
632 |
|
---|
633 | switch (IDL_NODE_TYPE(type_tree)) {
|
---|
634 | case IDLN_TYPE_INTEGER: {
|
---|
635 | gboolean sign = IDL_TYPE_INTEGER(type_tree).f_signed;
|
---|
636 | switch (IDL_TYPE_INTEGER(type_tree).f_type) {
|
---|
637 | case IDL_INTEGER_TYPE_SHORT:
|
---|
638 | fputs(sign ? "PRInt16" : "PRUint16", outfile);
|
---|
639 | break;
|
---|
640 | case IDL_INTEGER_TYPE_LONG:
|
---|
641 | fputs(sign ? "PRInt32" : "PRUint32", outfile);
|
---|
642 | break;
|
---|
643 | case IDL_INTEGER_TYPE_LONGLONG:
|
---|
644 | fputs(sign ? "PRInt64" : "PRUint64", outfile);
|
---|
645 | break;
|
---|
646 | default:
|
---|
647 | g_error("Unknown integer type %d\n",
|
---|
648 | IDL_TYPE_INTEGER(type_tree).f_type);
|
---|
649 | return FALSE;
|
---|
650 | }
|
---|
651 | break;
|
---|
652 | }
|
---|
653 | case IDLN_TYPE_CHAR:
|
---|
654 | fputs("char", outfile);
|
---|
655 | break;
|
---|
656 | case IDLN_TYPE_WIDE_CHAR:
|
---|
657 | fputs("PRUnichar", outfile); /* wchar_t? */
|
---|
658 | break;
|
---|
659 | case IDLN_TYPE_WIDE_STRING:
|
---|
660 | fputs("PRUnichar *", outfile);
|
---|
661 | break;
|
---|
662 | case IDLN_TYPE_STRING:
|
---|
663 | fputs("char *", outfile);
|
---|
664 | break;
|
---|
665 | case IDLN_TYPE_BOOLEAN:
|
---|
666 | fputs("PRBool", outfile);
|
---|
667 | break;
|
---|
668 | case IDLN_TYPE_OCTET:
|
---|
669 | fputs("PRUint8", outfile);
|
---|
670 | break;
|
---|
671 | case IDLN_TYPE_FLOAT:
|
---|
672 | switch (IDL_TYPE_FLOAT(type_tree).f_type) {
|
---|
673 | case IDL_FLOAT_TYPE_FLOAT:
|
---|
674 | fputs("float", outfile);
|
---|
675 | break;
|
---|
676 | case IDL_FLOAT_TYPE_DOUBLE:
|
---|
677 | fputs("double", outfile);
|
---|
678 | break;
|
---|
679 | /* XXX 'long double' just ignored, or what? */
|
---|
680 | default:
|
---|
681 | fprintf(outfile, "unknown_type_%d", IDL_NODE_TYPE(type_tree));
|
---|
682 | break;
|
---|
683 | }
|
---|
684 | break;
|
---|
685 | case IDLN_IDENT:
|
---|
686 | if (UP_IS_NATIVE(type_tree)) {
|
---|
687 | if (IDL_tree_property_get(type_tree, "domstring") ||
|
---|
688 | IDL_tree_property_get(type_tree, "astring")) {
|
---|
689 | fputs("nsAString", outfile);
|
---|
690 | } else if (IDL_tree_property_get(type_tree, "utf8string")) {
|
---|
691 | fputs("nsACString", outfile);
|
---|
692 | } else if (IDL_tree_property_get(type_tree, "cstring")) {
|
---|
693 | fputs("nsACString", outfile);
|
---|
694 | } else {
|
---|
695 | fputs(IDL_NATIVE(IDL_NODE_UP(type_tree)).user_type, outfile);
|
---|
696 | }
|
---|
697 | if (IDL_tree_property_get(type_tree, "ptr")) {
|
---|
698 | fputs(" *", outfile);
|
---|
699 | } else if (IDL_tree_property_get(type_tree, "ref")) {
|
---|
700 | fputs(" &", outfile);
|
---|
701 | }
|
---|
702 | } else {
|
---|
703 | fputs(IDL_IDENT(type_tree).str, outfile);
|
---|
704 | }
|
---|
705 | if (UP_IS_AGGREGATE(type_tree))
|
---|
706 | fputs(" *", outfile);
|
---|
707 | break;
|
---|
708 | default:
|
---|
709 | fprintf(outfile, "unknown_type_%d", IDL_NODE_TYPE(type_tree));
|
---|
710 | break;
|
---|
711 | }
|
---|
712 | return TRUE;
|
---|
713 | }
|
---|
714 |
|
---|
715 | /*
|
---|
716 | * An attribute declaration looks like:
|
---|
717 | *
|
---|
718 | * [ IDL_ATTR_DCL]
|
---|
719 | * - param_type_spec [IDL_TYPE_* or NULL for void]
|
---|
720 | * - simple_declarations [IDL_LIST]
|
---|
721 | * - data [IDL_IDENT]
|
---|
722 | * - next [IDL_LIST or NULL if no more idents]
|
---|
723 | * - data [IDL_IDENT]
|
---|
724 | */
|
---|
725 |
|
---|
726 | #define ATTR_IDENT(tree) (IDL_IDENT(IDL_LIST(IDL_ATTR_DCL(tree).simple_declarations).data))
|
---|
727 | #define ATTR_TYPE_DECL(tree) (IDL_ATTR_DCL(tree).param_type_spec)
|
---|
728 | #define ATTR_TYPE(tree) (IDL_NODE_TYPE(ATTR_TYPE_DECL(tree)))
|
---|
729 |
|
---|
730 | /*
|
---|
731 | * AS_DECL writes 'NS_IMETHOD foo(string bar, long sil)'
|
---|
732 | * AS_IMPL writes 'NS_IMETHODIMP className::foo(string bar, long sil)'
|
---|
733 | * AS_CALL writes 'foo(bar, sil)'
|
---|
734 | */
|
---|
735 | static gboolean
|
---|
736 | write_attr_accessor(IDL_tree attr_tree, FILE * outfile,
|
---|
737 | gboolean getter, int mode, const char *className)
|
---|
738 | {
|
---|
739 | char *attrname = ATTR_IDENT(attr_tree).str;
|
---|
740 |
|
---|
741 | if (mode == AS_DECL) {
|
---|
742 | fputs("NS_IMETHOD ", outfile);
|
---|
743 | } else if (mode == AS_IMPL) {
|
---|
744 | fprintf(outfile, "NS_IMETHODIMP %s::", className);
|
---|
745 | }
|
---|
746 | fprintf(outfile, "%cet%c%s(",
|
---|
747 | getter ? 'G' : 'S',
|
---|
748 | toupper(*attrname), attrname + 1);
|
---|
749 | if (mode == AS_DECL || mode == AS_IMPL) {
|
---|
750 | /* Setters for string, wstring, nsid, domstring, utf8string,
|
---|
751 | * cstring and astring get const.
|
---|
752 | */
|
---|
753 | if (!getter &&
|
---|
754 | (IDL_NODE_TYPE(ATTR_TYPE_DECL(attr_tree)) == IDLN_TYPE_STRING ||
|
---|
755 | IDL_NODE_TYPE(ATTR_TYPE_DECL(attr_tree)) == IDLN_TYPE_WIDE_STRING ||
|
---|
756 | IDL_tree_property_get(ATTR_TYPE_DECL(attr_tree), "nsid") ||
|
---|
757 | IDL_tree_property_get(ATTR_TYPE_DECL(attr_tree), "domstring") ||
|
---|
758 | IDL_tree_property_get(ATTR_TYPE_DECL(attr_tree), "utf8string") ||
|
---|
759 | IDL_tree_property_get(ATTR_TYPE_DECL(attr_tree), "cstring") ||
|
---|
760 | IDL_tree_property_get(ATTR_TYPE_DECL(attr_tree), "astring")))
|
---|
761 | {
|
---|
762 | fputs("const ", outfile);
|
---|
763 | }
|
---|
764 |
|
---|
765 | if (!write_type(ATTR_TYPE_DECL(attr_tree), getter, outfile))
|
---|
766 | return FALSE;
|
---|
767 | fprintf(outfile, "%s%s",
|
---|
768 | (STARRED_TYPE(attr_tree) ? "" : " "),
|
---|
769 | (getter && !DIPPER_TYPE(ATTR_TYPE_DECL(attr_tree)))? "*" : "");
|
---|
770 | }
|
---|
771 | fprintf(outfile, "a%c%s)", toupper(attrname[0]), attrname + 1);
|
---|
772 | return TRUE;
|
---|
773 | }
|
---|
774 |
|
---|
775 | static gboolean
|
---|
776 | attr_dcl(TreeState *state)
|
---|
777 | {
|
---|
778 | GSList *doc_comments;
|
---|
779 |
|
---|
780 | if (!verify_attribute_declaration(state->tree))
|
---|
781 | return FALSE;
|
---|
782 |
|
---|
783 | doc_comments =
|
---|
784 | IDL_IDENT(IDL_LIST(IDL_ATTR_DCL
|
---|
785 | (state->tree).simple_declarations).data).comments;
|
---|
786 |
|
---|
787 | if (doc_comments != NULL) {
|
---|
788 | write_indent(state->file);
|
---|
789 | printlist(state->file, doc_comments);
|
---|
790 | }
|
---|
791 |
|
---|
792 | /*
|
---|
793 | * XXX lists of attributes with the same type, e.g.
|
---|
794 | * attribute string foo, bar sil;
|
---|
795 | * are legal IDL... but we don't do anything with 'em.
|
---|
796 | */
|
---|
797 | if (IDL_LIST(IDL_ATTR_DCL(state->tree).simple_declarations).next != NULL) {
|
---|
798 | XPIDL_WARNING((state->tree, IDL_WARNING1,
|
---|
799 | "multiple attributes in a single declaration aren't "
|
---|
800 | "currently supported by xpidl"));
|
---|
801 | }
|
---|
802 |
|
---|
803 | xpidl_write_comment(state, 2);
|
---|
804 |
|
---|
805 | write_indent(state->file);
|
---|
806 | if (!write_attr_accessor(state->tree, state->file, TRUE, AS_DECL, NULL))
|
---|
807 | return FALSE;
|
---|
808 | fputs(" = 0;\n", state->file);
|
---|
809 |
|
---|
810 | if (!IDL_ATTR_DCL(state->tree).f_readonly) {
|
---|
811 | write_indent(state->file);
|
---|
812 | if (!write_attr_accessor(state->tree, state->file, FALSE, AS_DECL, NULL))
|
---|
813 | return FALSE;
|
---|
814 | fputs(" = 0;\n", state->file);
|
---|
815 | }
|
---|
816 | fputc('\n', state->file);
|
---|
817 |
|
---|
818 | return TRUE;
|
---|
819 | }
|
---|
820 |
|
---|
821 | static gboolean
|
---|
822 | do_enum(TreeState *state)
|
---|
823 | {
|
---|
824 | IDL_tree_error(state->tree, "enums not supported, "
|
---|
825 | "see http://bugzilla.mozilla.org/show_bug.cgi?id=8781");
|
---|
826 | return FALSE;
|
---|
827 | }
|
---|
828 |
|
---|
829 | static gboolean
|
---|
830 | do_const_dcl(TreeState *state)
|
---|
831 | {
|
---|
832 | struct _IDL_CONST_DCL *dcl = &IDL_CONST_DCL(state->tree);
|
---|
833 | const char *name = IDL_IDENT(dcl->ident).str;
|
---|
834 | gboolean is_signed;
|
---|
835 | GSList *doc_comments = IDL_IDENT(dcl->ident).comments;
|
---|
836 | IDL_tree real_type;
|
---|
837 | const char *const_format;
|
---|
838 |
|
---|
839 | if (!verify_const_declaration(state->tree))
|
---|
840 | return FALSE;
|
---|
841 |
|
---|
842 | if (doc_comments != NULL) {
|
---|
843 | write_indent(state->file);
|
---|
844 | printlist(state->file, doc_comments);
|
---|
845 | }
|
---|
846 |
|
---|
847 | /* Could be a typedef; try to map it to the real type. */
|
---|
848 | real_type = find_underlying_type(dcl->const_type);
|
---|
849 | real_type = real_type ? real_type : dcl->const_type;
|
---|
850 | is_signed = IDL_TYPE_INTEGER(real_type).f_signed;
|
---|
851 |
|
---|
852 | const_format = is_signed ? "%" IDL_LL "d" : "%" IDL_LL "uU";
|
---|
853 | write_indent(state->file);
|
---|
854 | fprintf(state->file, "enum { %s = ", name);
|
---|
855 | fprintf(state->file, const_format, IDL_INTEGER(dcl->const_exp).value);
|
---|
856 | fprintf(state->file, " };\n\n");
|
---|
857 |
|
---|
858 | return TRUE;
|
---|
859 | }
|
---|
860 |
|
---|
861 | static gboolean
|
---|
862 | do_typedef(TreeState *state)
|
---|
863 | {
|
---|
864 | IDL_tree type = IDL_TYPE_DCL(state->tree).type_spec;
|
---|
865 | IDL_tree dcls = IDL_TYPE_DCL(state->tree).dcls;
|
---|
866 | IDL_tree complex;
|
---|
867 | GSList *doc_comments;
|
---|
868 |
|
---|
869 | if (IDL_NODE_TYPE(type) == IDLN_TYPE_SEQUENCE) {
|
---|
870 | XPIDL_WARNING((state->tree, IDL_WARNING1,
|
---|
871 | "sequences not supported, ignored"));
|
---|
872 | } else {
|
---|
873 | if (IDL_NODE_TYPE(complex = IDL_LIST(dcls).data) == IDLN_TYPE_ARRAY) {
|
---|
874 | IDL_tree dim = IDL_TYPE_ARRAY(complex).size_list;
|
---|
875 | doc_comments = IDL_IDENT(IDL_TYPE_ARRAY(complex).ident).comments;
|
---|
876 |
|
---|
877 | if (doc_comments != NULL)
|
---|
878 | printlist(state->file, doc_comments);
|
---|
879 |
|
---|
880 | fputs("typedef ", state->file);
|
---|
881 | if (!write_type(type, FALSE, state->file))
|
---|
882 | return FALSE;
|
---|
883 | fputs(" ", state->file);
|
---|
884 |
|
---|
885 | fprintf(state->file, "%s",
|
---|
886 | IDL_IDENT(IDL_TYPE_ARRAY(complex).ident).str);
|
---|
887 | do {
|
---|
888 | fputc('[', state->file);
|
---|
889 | if (IDL_LIST(dim).data) {
|
---|
890 | fprintf(state->file, "%ld",
|
---|
891 | (long)IDL_INTEGER(IDL_LIST(dim).data).value);
|
---|
892 | }
|
---|
893 | fputc(']', state->file);
|
---|
894 | } while ((dim = IDL_LIST(dim).next) != NULL);
|
---|
895 | } else {
|
---|
896 | doc_comments = IDL_IDENT(IDL_LIST(dcls).data).comments;
|
---|
897 |
|
---|
898 | if (doc_comments != NULL)
|
---|
899 | printlist(state->file, doc_comments);
|
---|
900 |
|
---|
901 | fputs("typedef ", state->file);
|
---|
902 | if (!write_type(type, FALSE, state->file))
|
---|
903 | return FALSE;
|
---|
904 | fputs(" ", state->file);
|
---|
905 | fputs(IDL_IDENT(IDL_LIST(dcls).data).str, state->file);
|
---|
906 | }
|
---|
907 | fputs(";\n\n", state->file);
|
---|
908 | }
|
---|
909 | return TRUE;
|
---|
910 | }
|
---|
911 |
|
---|
912 | /*
|
---|
913 | * param generation:
|
---|
914 | * in string foo --> nsString *foo
|
---|
915 | * out string foo --> nsString **foo;
|
---|
916 | * inout string foo --> nsString **foo;
|
---|
917 | */
|
---|
918 |
|
---|
919 | /* If notype is true, just write the param name. */
|
---|
920 | static gboolean
|
---|
921 | write_param(IDL_tree param_tree, FILE *outfile)
|
---|
922 | {
|
---|
923 | IDL_tree param_type_spec = IDL_PARAM_DCL(param_tree).param_type_spec;
|
---|
924 | gboolean is_in = IDL_PARAM_DCL(param_tree).attr == IDL_PARAM_IN;
|
---|
925 | /* in string, wstring, nsid, domstring, utf8string, cstring and
|
---|
926 | * astring any explicitly marked [const] are const
|
---|
927 | */
|
---|
928 |
|
---|
929 | if (is_in &&
|
---|
930 | (IDL_NODE_TYPE(param_type_spec) == IDLN_TYPE_STRING ||
|
---|
931 | IDL_NODE_TYPE(param_type_spec) == IDLN_TYPE_WIDE_STRING ||
|
---|
932 | IDL_tree_property_get(IDL_PARAM_DCL(param_tree).simple_declarator,
|
---|
933 | "const") ||
|
---|
934 | IDL_tree_property_get(param_type_spec, "nsid") ||
|
---|
935 | IDL_tree_property_get(param_type_spec, "domstring") ||
|
---|
936 | IDL_tree_property_get(param_type_spec, "utf8string") ||
|
---|
937 | IDL_tree_property_get(param_type_spec, "cstring") ||
|
---|
938 | IDL_tree_property_get(param_type_spec, "astring"))) {
|
---|
939 | fputs("const ", outfile);
|
---|
940 | }
|
---|
941 | else if (IDL_PARAM_DCL(param_tree).attr == IDL_PARAM_OUT &&
|
---|
942 | IDL_tree_property_get(IDL_PARAM_DCL(param_tree).simple_declarator,
|
---|
943 | "shared")) {
|
---|
944 | fputs("const ", outfile);
|
---|
945 | }
|
---|
946 |
|
---|
947 | if (!write_type(param_type_spec, !is_in, outfile))
|
---|
948 | return FALSE;
|
---|
949 |
|
---|
950 | /* unless the type ended in a *, add a space */
|
---|
951 | if (!STARRED_TYPE(param_type_spec))
|
---|
952 | fputc(' ', outfile);
|
---|
953 |
|
---|
954 | /* out and inout params get a bonus '*' (unless this is type that has a
|
---|
955 | * 'dipper' class that is passed in to receive 'out' data)
|
---|
956 | */
|
---|
957 | if (IDL_PARAM_DCL(param_tree).attr != IDL_PARAM_IN &&
|
---|
958 | !DIPPER_TYPE(param_type_spec)) {
|
---|
959 | fputc('*', outfile);
|
---|
960 | }
|
---|
961 | /* arrays get a bonus * too */
|
---|
962 | /* XXX Should this be a leading '*' or a trailing "[]" ?*/
|
---|
963 | if (IDL_tree_property_get(IDL_PARAM_DCL(param_tree).simple_declarator,
|
---|
964 | "array"))
|
---|
965 | fputc('*', outfile);
|
---|
966 |
|
---|
967 | fputs(IDL_IDENT(IDL_PARAM_DCL(param_tree).simple_declarator).str, outfile);
|
---|
968 |
|
---|
969 | return TRUE;
|
---|
970 | }
|
---|
971 |
|
---|
972 | /*
|
---|
973 | * A forward declaration, usually an interface.
|
---|
974 | */
|
---|
975 | static gboolean
|
---|
976 | forward_dcl(TreeState *state)
|
---|
977 | {
|
---|
978 | IDL_tree iface = state->tree;
|
---|
979 | const char *className = IDL_IDENT(IDL_FORWARD_DCL(iface).ident).str;
|
---|
980 |
|
---|
981 | if (!className)
|
---|
982 | return FALSE;
|
---|
983 |
|
---|
984 | fprintf(state->file, "class %s; /* forward declaration */\n\n", className);
|
---|
985 | return TRUE;
|
---|
986 | }
|
---|
987 |
|
---|
988 | /*
|
---|
989 | * Shared between the interface class declaration and the NS_DECL_IFOO macro
|
---|
990 | * provided to aid declaration of implementation classes.
|
---|
991 | * mode...
|
---|
992 | * AS_DECL writes 'NS_IMETHOD foo(string bar, long sil)'
|
---|
993 | * AS_IMPL writes 'NS_IMETHODIMP className::foo(string bar, long sil)'
|
---|
994 | * AS_CALL writes 'foo(bar, sil)'
|
---|
995 | */
|
---|
996 | static gboolean
|
---|
997 | write_method_signature(IDL_tree method_tree, FILE *outfile, int mode,
|
---|
998 | const char *className)
|
---|
999 | {
|
---|
1000 | struct _IDL_OP_DCL *op = &IDL_OP_DCL(method_tree);
|
---|
1001 | gboolean no_generated_args = TRUE;
|
---|
1002 | gboolean op_notxpcom =
|
---|
1003 | (IDL_tree_property_get(op->ident, "notxpcom") != NULL);
|
---|
1004 | const char *name;
|
---|
1005 | IDL_tree iter;
|
---|
1006 |
|
---|
1007 | if (mode == AS_DECL) {
|
---|
1008 | if (op_notxpcom) {
|
---|
1009 | fputs("NS_IMETHOD_(", outfile);
|
---|
1010 | if (!write_type(op->op_type_spec, FALSE, outfile))
|
---|
1011 | return FALSE;
|
---|
1012 | fputc(')', outfile);
|
---|
1013 | } else {
|
---|
1014 | fputs("NS_IMETHOD", outfile);
|
---|
1015 | }
|
---|
1016 | fputc(' ', outfile);
|
---|
1017 | }
|
---|
1018 | else if (mode == AS_IMPL) {
|
---|
1019 | if (op_notxpcom) {
|
---|
1020 | fputs("NS_IMETHODIMP_(", outfile);
|
---|
1021 | if (!write_type(op->op_type_spec, FALSE, outfile))
|
---|
1022 | return FALSE;
|
---|
1023 | fputc(')', outfile);
|
---|
1024 | } else {
|
---|
1025 | fputs("NS_IMETHODIMP", outfile);
|
---|
1026 | }
|
---|
1027 | fputc(' ', outfile);
|
---|
1028 | }
|
---|
1029 | name = IDL_IDENT(op->ident).str;
|
---|
1030 | if (mode == AS_IMPL) {
|
---|
1031 | fprintf(outfile, "%s::%c%s(", className, toupper(*name), name + 1);
|
---|
1032 | } else {
|
---|
1033 | fprintf(outfile, "%c%s(", toupper(*name), name + 1);
|
---|
1034 | }
|
---|
1035 | for (iter = op->parameter_dcls; iter; iter = IDL_LIST(iter).next) {
|
---|
1036 | if (mode == AS_DECL || mode == AS_IMPL) {
|
---|
1037 | if (!write_param(IDL_LIST(iter).data, outfile))
|
---|
1038 | return FALSE;
|
---|
1039 | } else {
|
---|
1040 | fputs(IDL_IDENT(IDL_PARAM_DCL(IDL_LIST(iter).data)
|
---|
1041 | .simple_declarator).str,
|
---|
1042 | outfile);
|
---|
1043 | }
|
---|
1044 | if ((IDL_LIST(iter).next ||
|
---|
1045 | (!op_notxpcom && op->op_type_spec) || op->f_varargs))
|
---|
1046 | fputs(", ", outfile);
|
---|
1047 | no_generated_args = FALSE;
|
---|
1048 | }
|
---|
1049 |
|
---|
1050 | /* make IDL return value into trailing out argument */
|
---|
1051 | if (op->op_type_spec && !op_notxpcom) {
|
---|
1052 | IDL_tree fake_param = IDL_param_dcl_new(IDL_PARAM_OUT,
|
---|
1053 | op->op_type_spec,
|
---|
1054 | IDL_ident_new("_retval"));
|
---|
1055 | if (!fake_param)
|
---|
1056 | return FALSE;
|
---|
1057 | if (mode == AS_DECL || mode == AS_IMPL) {
|
---|
1058 | if (!write_param(fake_param, outfile))
|
---|
1059 | return FALSE;
|
---|
1060 | } else {
|
---|
1061 | fputs("_retval", outfile);
|
---|
1062 | }
|
---|
1063 | if (op->f_varargs)
|
---|
1064 | fputs(", ", outfile);
|
---|
1065 | no_generated_args = FALSE;
|
---|
1066 | }
|
---|
1067 |
|
---|
1068 | /* varargs go last */
|
---|
1069 | if (op->f_varargs) {
|
---|
1070 | if (mode == AS_DECL || mode == AS_IMPL) {
|
---|
1071 | fputs("nsVarArgs *", outfile);
|
---|
1072 | }
|
---|
1073 | fputs("_varargs", outfile);
|
---|
1074 | no_generated_args = FALSE;
|
---|
1075 | }
|
---|
1076 |
|
---|
1077 | /*
|
---|
1078 | * If generated method has no arguments, output 'void' to avoid C legacy
|
---|
1079 | * behavior of disabling type checking.
|
---|
1080 | */
|
---|
1081 | if (no_generated_args && mode == AS_DECL) {
|
---|
1082 | fputs("void", outfile);
|
---|
1083 | }
|
---|
1084 |
|
---|
1085 | fputc(')', outfile);
|
---|
1086 |
|
---|
1087 | return TRUE;
|
---|
1088 | }
|
---|
1089 |
|
---|
1090 | /*
|
---|
1091 | * A method is an `operation', therefore a method decl is an `op dcl'.
|
---|
1092 | * I blame Elliot.
|
---|
1093 | */
|
---|
1094 | static gboolean
|
---|
1095 | op_dcl(TreeState *state)
|
---|
1096 | {
|
---|
1097 | GSList *doc_comments = IDL_IDENT(IDL_OP_DCL(state->tree).ident).comments;
|
---|
1098 |
|
---|
1099 | /*
|
---|
1100 | * Verify that e.g. non-scriptable methods in [scriptable] interfaces
|
---|
1101 | * are declared so. Do this in a separate verification pass?
|
---|
1102 | */
|
---|
1103 | if (!verify_method_declaration(state->tree))
|
---|
1104 | return FALSE;
|
---|
1105 |
|
---|
1106 | if (doc_comments != NULL) {
|
---|
1107 | write_indent(state->file);
|
---|
1108 | printlist(state->file, doc_comments);
|
---|
1109 | }
|
---|
1110 | xpidl_write_comment(state, 2);
|
---|
1111 |
|
---|
1112 | write_indent(state->file);
|
---|
1113 | if (!write_method_signature(state->tree, state->file, AS_DECL, NULL))
|
---|
1114 | return FALSE;
|
---|
1115 | fputs(" = 0;\n\n", state->file);
|
---|
1116 |
|
---|
1117 | return TRUE;
|
---|
1118 | }
|
---|
1119 |
|
---|
1120 | static void
|
---|
1121 | write_codefrag_line(gpointer data, gpointer user_data)
|
---|
1122 | {
|
---|
1123 | TreeState *state = (TreeState *)user_data;
|
---|
1124 | const char *line = (const char *)data;
|
---|
1125 | fputs(line, state->file);
|
---|
1126 | fputc('\n', state->file);
|
---|
1127 | }
|
---|
1128 |
|
---|
1129 | static gboolean
|
---|
1130 | codefrag(TreeState *state)
|
---|
1131 | {
|
---|
1132 | const char *desc = IDL_CODEFRAG(state->tree).desc;
|
---|
1133 | GSList *lines = IDL_CODEFRAG(state->tree).lines;
|
---|
1134 | guint fragment_length;
|
---|
1135 |
|
---|
1136 | if (strcmp(desc, "C++") && /* libIDL bug? */ strcmp(desc, "C++\r")) {
|
---|
1137 | XPIDL_WARNING((state->tree, IDL_WARNING1,
|
---|
1138 | "ignoring '%%{%s' escape. "
|
---|
1139 | "(Use '%%{C++' to escape verbatim C++ code.)", desc));
|
---|
1140 |
|
---|
1141 | return TRUE;
|
---|
1142 | }
|
---|
1143 |
|
---|
1144 | /*
|
---|
1145 | * Emit #file directive to point debuggers back to the original .idl file
|
---|
1146 | * for the duration of the code fragment. We look at internal IDL node
|
---|
1147 | * properties _file, _line to do this; hopefully they won't change.
|
---|
1148 | *
|
---|
1149 | * _line seems to refer to the line immediately after the closing %}, so
|
---|
1150 | * we backtrack to get the proper line for the beginning of the block.
|
---|
1151 | */
|
---|
1152 | /*
|
---|
1153 | * Looks like getting this right means maintaining an accurate line
|
---|
1154 | * count of everything generated, so we can set the file back to the
|
---|
1155 | * correct line in the generated file afterwards. Skipping for now...
|
---|
1156 | */
|
---|
1157 |
|
---|
1158 | fragment_length = g_slist_length(lines);
|
---|
1159 | /* fprintf(state->file, "#line %d \"%s\"\n", */
|
---|
1160 | /* state->tree->_line - fragment_length - 1, */
|
---|
1161 | /* state->tree->_file); */
|
---|
1162 |
|
---|
1163 | g_slist_foreach(lines, write_codefrag_line, (gpointer)state);
|
---|
1164 |
|
---|
1165 | return TRUE;
|
---|
1166 | }
|
---|
1167 |
|
---|
1168 | backend *
|
---|
1169 | xpidl_header_dispatch(void)
|
---|
1170 | {
|
---|
1171 | static backend result;
|
---|
1172 | static nodeHandler table[IDLN_LAST];
|
---|
1173 | static gboolean initialized = FALSE;
|
---|
1174 |
|
---|
1175 | result.emit_prolog = header_prolog;
|
---|
1176 | result.emit_epilog = header_epilog;
|
---|
1177 |
|
---|
1178 | if (!initialized) {
|
---|
1179 | table[IDLN_LIST] = list;
|
---|
1180 | table[IDLN_ATTR_DCL] = attr_dcl;
|
---|
1181 | table[IDLN_OP_DCL] = op_dcl;
|
---|
1182 | table[IDLN_FORWARD_DCL] = forward_dcl;
|
---|
1183 | table[IDLN_TYPE_ENUM] = do_enum;
|
---|
1184 | table[IDLN_INTERFACE] = interface;
|
---|
1185 | table[IDLN_CODEFRAG] = codefrag;
|
---|
1186 | table[IDLN_TYPE_DCL] = do_typedef;
|
---|
1187 | table[IDLN_CONST_DCL] = do_const_dcl;
|
---|
1188 | table[IDLN_NATIVE] = check_native;
|
---|
1189 | initialized = TRUE;
|
---|
1190 | }
|
---|
1191 |
|
---|
1192 | result.dispatch_table = table;
|
---|
1193 | return &result;
|
---|
1194 | }
|
---|