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1 /* -*- mode: C; c-file-style: "gnu" -*- */ |
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2 /* dbus-gsignature.c Mapping from dbus type signatures to GType |
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3 * |
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4 * Copyright (C) 2005 Red Hat, Inc. |
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5 * |
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6 * Licensed under the Academic Free License version 2.1 |
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7 * |
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8 * This program is free software; you can redistribute it and/or modify |
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9 * it under the terms of the GNU General Public License as published by |
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10 * the Free Software Foundation; either version 2 of the License, or |
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11 * (at your option) any later version. |
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12 * |
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13 * This program is distributed in the hope that it will be useful, |
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 * GNU General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU General Public License |
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19 * along with this program; if not, write to the Free Software |
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20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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21 * |
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22 */ |
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23 |
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24 #include "config.h" |
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25 #include "dbus-gtest.h" |
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26 #include "dbus-gsignature.h" |
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27 #include "dbus-gvalue-utils.h" |
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28 #include <string.h> |
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29 #include <glib.h> |
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30 |
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31 #define MAP_BASIC(d_t, g_t) \ |
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32 case DBUS_TYPE_##d_t: \ |
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33 return G_TYPE_##g_t; |
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34 static GType |
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35 typecode_to_gtype (int type) |
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36 { |
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37 switch (type) |
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38 { |
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39 MAP_BASIC (BOOLEAN, BOOLEAN); |
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40 MAP_BASIC (BYTE, UCHAR); |
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41 MAP_BASIC (INT16, INT); |
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42 MAP_BASIC (INT32, INT); |
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43 MAP_BASIC (UINT16, UINT); |
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44 MAP_BASIC (UINT32, UINT); |
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45 MAP_BASIC (INT64, INT64); |
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46 MAP_BASIC (UINT64, UINT64); |
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47 MAP_BASIC (DOUBLE, DOUBLE); |
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48 MAP_BASIC (STRING, STRING); |
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49 default: |
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50 return G_TYPE_INVALID; |
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51 } |
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52 } |
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53 #undef MAP_BASIC |
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54 |
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55 static gboolean |
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56 dbus_typecode_maps_to_basic (int typecode) |
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57 { |
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58 return typecode_to_gtype (typecode) != G_TYPE_INVALID; |
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59 } |
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60 |
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61 GType |
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62 _dbus_gtype_from_basic_typecode (int typecode) |
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63 { |
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64 g_assert (dbus_type_is_basic (typecode)); |
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65 g_assert (dbus_typecode_maps_to_basic (typecode)); |
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66 return typecode_to_gtype (typecode); |
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67 } |
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68 |
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69 static GType |
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70 signature_iter_to_g_type_dict (const DBusSignatureIter *subiter, gboolean is_client) |
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71 { |
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72 DBusSignatureIter iter; |
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73 GType key_gtype; |
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74 GType value_gtype; |
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75 |
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76 g_assert (dbus_signature_iter_get_current_type (subiter) == DBUS_TYPE_DICT_ENTRY); |
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77 |
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78 dbus_signature_iter_recurse (subiter, &iter); |
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79 |
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80 key_gtype = _dbus_gtype_from_signature_iter (&iter, is_client); |
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81 if (key_gtype == G_TYPE_INVALID) |
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82 return G_TYPE_INVALID; |
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83 |
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84 dbus_signature_iter_next (&iter); |
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85 value_gtype = _dbus_gtype_from_signature_iter (&iter, is_client); |
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86 if (value_gtype == G_TYPE_INVALID) |
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87 return G_TYPE_INVALID; |
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88 |
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89 if (!_dbus_gtype_is_valid_hash_key (key_gtype) |
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90 || !_dbus_gtype_is_valid_hash_value (value_gtype)) |
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91 /* Later we need to return DBUS_TYPE_G_VALUE */ |
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92 return G_TYPE_INVALID; |
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93 |
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94 return dbus_g_type_get_map ("GHashTable", key_gtype, value_gtype); |
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95 } |
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96 |
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97 static GType |
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98 signature_iter_to_g_type_array (DBusSignatureIter *iter, gboolean is_client) |
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99 { |
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100 GType elt_gtype; |
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101 |
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102 elt_gtype = _dbus_gtype_from_signature_iter (iter, is_client); |
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103 if (elt_gtype == G_TYPE_INVALID) |
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104 return G_TYPE_INVALID; |
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105 |
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106 if (elt_gtype == G_TYPE_OBJECT) |
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107 return DBUS_TYPE_G_OBJECT_ARRAY; |
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108 if (elt_gtype == G_TYPE_STRING) |
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109 return G_TYPE_STRV; |
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110 if (_dbus_g_type_is_fixed (elt_gtype)) |
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111 return dbus_g_type_get_collection ("GArray", elt_gtype); |
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112 else if (g_type_is_a (elt_gtype, G_TYPE_OBJECT) |
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113 || g_type_is_a (elt_gtype, G_TYPE_BOXED)) |
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114 return dbus_g_type_get_collection ("GPtrArray", elt_gtype); |
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115 |
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116 /* Later we need to return DBUS_TYPE_G_VALUE */ |
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117 return G_TYPE_INVALID; |
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118 } |
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119 |
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120 static GType |
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121 signature_iter_to_g_type_struct (DBusSignatureIter *iter, gboolean is_client) |
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122 { |
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123 GArray *types; |
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124 GType ret; |
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125 types = g_array_new (FALSE, FALSE, sizeof (GType)); |
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126 do |
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127 { |
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128 GType curtype; |
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129 curtype = _dbus_gtype_from_signature_iter (iter, is_client); |
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130 g_array_append_val (types, curtype); |
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131 } |
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132 while (dbus_signature_iter_next (iter)); |
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133 |
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134 ret = dbus_g_type_get_structv ("GValueArray", types->len, (GType*) types->data); |
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135 g_array_free (types, TRUE); |
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136 return ret; |
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137 } |
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138 |
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139 GType |
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140 _dbus_gtype_from_signature_iter (DBusSignatureIter *iter, gboolean is_client) |
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141 { |
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142 int current_type; |
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143 |
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144 current_type = dbus_signature_iter_get_current_type (iter); |
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145 /* TODO: handle type 0? */ |
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146 if (dbus_typecode_maps_to_basic (current_type)) |
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147 return _dbus_gtype_from_basic_typecode (current_type); |
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148 else if (current_type == DBUS_TYPE_OBJECT_PATH) |
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149 return DBUS_TYPE_G_OBJECT_PATH; |
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150 else |
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151 { |
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152 DBusSignatureIter subiter; |
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153 |
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154 g_assert (dbus_type_is_container (current_type)); |
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155 |
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156 if (current_type == DBUS_TYPE_VARIANT) |
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157 return G_TYPE_VALUE; |
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158 |
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159 dbus_signature_iter_recurse (iter, &subiter); |
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160 |
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161 if (current_type == DBUS_TYPE_ARRAY) |
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162 { |
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163 int elt_type = dbus_signature_iter_get_current_type (&subiter); |
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164 if (elt_type == DBUS_TYPE_DICT_ENTRY) |
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165 return signature_iter_to_g_type_dict (&subiter, is_client); |
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166 else |
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167 return signature_iter_to_g_type_array (&subiter, is_client); |
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168 } |
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169 else if (current_type == DBUS_TYPE_STRUCT) |
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170 { |
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171 return signature_iter_to_g_type_struct (&subiter, is_client); |
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172 } |
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173 else |
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174 { |
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175 g_assert_not_reached (); |
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176 return G_TYPE_INVALID; |
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177 } |
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178 } |
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179 } |
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180 |
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181 GType |
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182 _dbus_gtype_from_signature (const char *signature, gboolean is_client) |
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183 { |
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184 DBusSignatureIter iter; |
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185 |
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186 dbus_signature_iter_init (&iter, signature); |
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187 |
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188 return _dbus_gtype_from_signature_iter (&iter, is_client); |
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189 } |
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190 |
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191 GArray * |
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192 _dbus_gtypes_from_arg_signature (const char *argsig, gboolean is_client) |
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193 { |
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194 GArray *ret; |
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195 int current_type; |
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196 DBusSignatureIter sigiter; |
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197 |
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198 ret = g_array_new (FALSE, FALSE, sizeof (GType)); |
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199 |
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200 dbus_signature_iter_init (&sigiter, argsig); |
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201 while ((current_type = dbus_signature_iter_get_current_type (&sigiter)) != DBUS_TYPE_INVALID) |
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202 { |
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203 GType curtype; |
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204 |
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205 curtype = _dbus_gtype_from_signature_iter (&sigiter, is_client); |
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206 g_array_append_val (ret, curtype); |
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207 dbus_signature_iter_next (&sigiter); |
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208 } |
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209 return ret; |
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210 } |