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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT COMPILER COMPONENTS --
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4 -- --
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5 -- V A L I D S W --
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6 -- --
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7 -- B o d y --
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8 -- --
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131
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9 -- Copyright (C) 2001-2018, Free Software Foundation, Inc. --
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111
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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17 -- for more details. You should have received a copy of the GNU General --
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18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
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19 -- http://www.gnu.org/licenses for a complete copy of the license. --
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20 -- --
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21 -- GNAT was originally developed by the GNAT team at New York University. --
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22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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23 -- --
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24 ------------------------------------------------------------------------------
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25
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26 with Opt; use Opt;
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27 with Output; use Output;
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28
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29 package body Validsw is
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30
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31 ----------------------------------
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32 -- Reset_Validity_Check_Options --
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33 ----------------------------------
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34
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35 procedure Reset_Validity_Check_Options is
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36 begin
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37 Validity_Check_Components := False;
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38 Validity_Check_Copies := False;
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39 Validity_Check_Default := True;
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40 Validity_Check_Floating_Point := False;
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41 Validity_Check_In_Out_Params := False;
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42 Validity_Check_In_Params := False;
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43 Validity_Check_Operands := False;
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44 Validity_Check_Returns := False;
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45 Validity_Check_Subscripts := False;
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46 Validity_Check_Tests := False;
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47 end Reset_Validity_Check_Options;
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48
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49 ---------------------------------
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50 -- Save_Validity_Check_Options --
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51 ---------------------------------
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52
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53 procedure Save_Validity_Check_Options
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54 (Options : out Validity_Check_Options)
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55 is
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56 P : Natural := 0;
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57
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58 procedure Add (C : Character; S : Boolean);
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59 -- Add given character C to string if switch S is true
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60
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61 procedure Add (C : Character; S : Boolean) is
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62 begin
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63 if S then
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64 P := P + 1;
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65 Options (P) := C;
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66 end if;
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67 end Add;
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68
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69 -- Start of processing for Save_Validity_Check_Options
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70
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71 begin
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72 for K in Options'Range loop
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73 Options (K) := ' ';
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74 end loop;
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75
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76 Add ('n', not Validity_Check_Default);
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77
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78 Add ('c', Validity_Check_Copies);
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79 Add ('e', Validity_Check_Components);
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80 Add ('f', Validity_Check_Floating_Point);
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81 Add ('i', Validity_Check_In_Params);
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82 Add ('m', Validity_Check_In_Out_Params);
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83 Add ('o', Validity_Check_Operands);
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84 Add ('r', Validity_Check_Returns);
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85 Add ('s', Validity_Check_Subscripts);
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86 Add ('t', Validity_Check_Tests);
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87 end Save_Validity_Check_Options;
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88
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89 ----------------------------------------
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90 -- Set_Default_Validity_Check_Options --
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91 ----------------------------------------
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92
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93 procedure Set_Default_Validity_Check_Options is
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94 begin
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95 Reset_Validity_Check_Options;
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96 Set_Validity_Check_Options ("d");
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97 end Set_Default_Validity_Check_Options;
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98
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99 --------------------------------
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100 -- Set_Validity_Check_Options --
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101 --------------------------------
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102
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103 -- Version used when no error checking is required
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104
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105 procedure Set_Validity_Check_Options (Options : String) is
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106 OK : Boolean;
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107 EC : Natural;
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108 pragma Warnings (Off, OK);
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109 pragma Warnings (Off, EC);
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110 begin
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111 Set_Validity_Check_Options (Options, OK, EC);
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112 end Set_Validity_Check_Options;
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113
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114 -- Normal version with error checking
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115
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116 procedure Set_Validity_Check_Options
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117 (Options : String;
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118 OK : out Boolean;
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119 Err_Col : out Natural)
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120 is
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121 J : Natural;
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122 C : Character;
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123
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124 begin
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125 J := Options'First;
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126 while J <= Options'Last loop
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127 C := Options (J);
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128 J := J + 1;
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129
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130 -- Turn on validity checking (gets turned off by Vn)
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131
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132 Validity_Checks_On := True;
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133
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134 case C is
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135 when 'c' =>
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136 Validity_Check_Copies := True;
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137
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138 when 'd' =>
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139 Validity_Check_Default := True;
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140
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141 when 'e' =>
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142 Validity_Check_Components := True;
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143
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144 when 'f' =>
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145 Validity_Check_Floating_Point := True;
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146
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147 when 'i' =>
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148 Validity_Check_In_Params := True;
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149
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150 when 'm' =>
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151 Validity_Check_In_Out_Params := True;
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152
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153 when 'o' =>
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154 Validity_Check_Operands := True;
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155
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156 when 'p' =>
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157 Validity_Check_Parameters := True;
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158
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159 when 'r' =>
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160 Validity_Check_Returns := True;
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161
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162 when 's' =>
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163 Validity_Check_Subscripts := True;
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164
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165 when 't' =>
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166 Validity_Check_Tests := True;
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167
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168 when 'C' =>
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169 Validity_Check_Copies := False;
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170
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171 when 'D' =>
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172 Validity_Check_Default := False;
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173
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174 when 'E' =>
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175 Validity_Check_Components := False;
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176
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177 when 'F' =>
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178 Validity_Check_Floating_Point := False;
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179
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180 when 'I' =>
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181 Validity_Check_In_Params := False;
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182
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183 when 'M' =>
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184 Validity_Check_In_Out_Params := False;
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185
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186 when 'O' =>
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187 Validity_Check_Operands := False;
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188
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189 when 'P' =>
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190 Validity_Check_Parameters := False;
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191
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192 when 'R' =>
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193 Validity_Check_Returns := False;
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194
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195 when 'S' =>
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196 Validity_Check_Subscripts := False;
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197
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198 when 'T' =>
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199 Validity_Check_Tests := False;
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200
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201 when 'a' =>
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202 Validity_Check_Components := True;
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203 Validity_Check_Copies := True;
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204 Validity_Check_Default := True;
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205 Validity_Check_Floating_Point := True;
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206 Validity_Check_In_Out_Params := True;
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207 Validity_Check_In_Params := True;
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208 Validity_Check_Operands := True;
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209 Validity_Check_Parameters := True;
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210 Validity_Check_Returns := True;
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211 Validity_Check_Subscripts := True;
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212 Validity_Check_Tests := True;
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213
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214 when 'n' =>
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215 Validity_Check_Components := False;
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216 Validity_Check_Copies := False;
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217 Validity_Check_Default := False;
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218 Validity_Check_Floating_Point := False;
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219 Validity_Check_In_Out_Params := False;
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220 Validity_Check_In_Params := False;
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221 Validity_Check_Operands := False;
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222 Validity_Check_Parameters := False;
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223 Validity_Check_Returns := False;
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224 Validity_Check_Subscripts := False;
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225 Validity_Check_Tests := False;
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226 Validity_Checks_On := False;
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227
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228 when ' ' =>
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229 null;
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230
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231 when others =>
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232 if Ignore_Unrecognized_VWY_Switches then
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233 Write_Line ("unrecognized switch -gnatV" & C & " ignored");
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234 else
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235 OK := False;
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236 Err_Col := J - 1;
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237 return;
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238 end if;
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239 end case;
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240 end loop;
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241
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242 OK := True;
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243 Err_Col := Options'Last + 1;
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244 end Set_Validity_Check_Options;
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245
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246 end Validsw;
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