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1 module dmd.VersionCondition;
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2
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114
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3 import dmd.common;
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0
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4 import dmd.DVCondition;
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5 import dmd.Loc;
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6 import dmd.Module;
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7 import dmd.Scope;
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8 import dmd.ScopeDsymbol;
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9 import dmd.OutBuffer;
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10 import dmd.HdrGenState;
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11 import dmd.Identifier;
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12 import dmd.Global;
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13 import dmd.String;
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14 import dmd.Util : error;
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15
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16 import std.string : startsWith;
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17
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18 // for findCondition
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19 import dmd.Array;
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20 import core.stdc.string;
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21
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22 import std.stdio;
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23
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24 bool findCondition(Array ids, Identifier ident)
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25 {
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26 if (ids !is null) {
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27 foreach (i; 0..ids.dim)
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28 {
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29 string id = (cast(String)ids.data[i]).str;
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30 if (id == ident.toChars()) {
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31 return true;
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32 }
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33 }
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34 }
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35
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36 return false;
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37 }
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38
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39 class VersionCondition : DVCondition
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40 {
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41 static void setGlobalLevel(uint level)
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42 {
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43 global.params.versionlevel = level;
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44 }
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45
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46 static void checkPredefined(Loc loc, string ident)
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47 {
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96
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48 version (DMDV2)
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49 {
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0
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50 static string[] reserved = [
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51 "DigitalMars", "X86", "X86_64",
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52 "Windows", "Win32", "Win64",
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53 "linux",
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54 /* Although Posix is predefined by D1, disallowing its
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55 * redefinition breaks makefiles and older builds.
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56 */
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57 "Posix",
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58 "D_NET",
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59 "OSX", "FreeBSD",
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60 "Solaris",
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61 "LittleEndian", "BigEndian",
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62 "all",
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63 "none",
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64 ];
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65 } else {
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66 static string[] reserved = [
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67 "DigitalMars", "X86", "X86_64",
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68 "Windows", "Win32", "Win64",
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69 "linux",
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70 "OSX", "FreeBSD",
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71 "Solaris",
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72 "LittleEndian", "BigEndian",
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73 "all",
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74 "none",
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75 ];
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76 }
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77 foreach (reservedIdent; reserved)
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78 {
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79 if (ident == reservedIdent)
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80 goto Lerror;
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81 }
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82
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83 if (ident.startsWith("D_")) {
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84 goto Lerror;
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85 }
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86
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87 return;
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88
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89 Lerror:
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90 error(loc, "version identifier '%s' is reserved and cannot be set", ident);
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91 }
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92
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93 static void addGlobalIdent(string ident)
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94 {
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95 checkPredefined(Loc(0), ident);
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96 addPredefinedGlobalIdent(ident);
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97 }
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98
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99 static void addPredefinedGlobalIdent(string ident)
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100 {
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101 global.params.versionids.push(cast(void*)new String(ident)); ///
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102 }
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103
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104 this(Module mod, uint level, Identifier ident)
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105 {
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106 super(mod, level, ident);
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107 }
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108
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72
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109 override final bool include(Scope sc, ScopeDsymbol s)
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110 {
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111 //printf("VersionCondition::include() level = %d, versionlevel = %d\n", level, global.params.versionlevel);
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112 //if (ident) printf("\tident = '%s'\n", ident->toChars());
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113 if (inc == 0) {
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114 inc = 2;
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115 if (ident !is null) {
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116 if (findCondition(mod.versionids, ident)) {
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117 inc = 1;
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118 } else if (findCondition(global.params.versionids, ident)) {
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119 inc = 1;
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120 } else {
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121 if (!mod.versionidsNot) {
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122 mod.versionidsNot = new Array();
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123 }
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124 mod.versionidsNot.push(cast(void*)new String(ident.toChars())); //
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125 }
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126 } else if (level <= global.params.versionlevel || level <= mod.versionlevel) {
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127 inc = 1;
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128 }
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129 }
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130
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131 return (inc == 1);
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132 }
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133
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72
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134 override final void toCBuffer(OutBuffer buf, HdrGenState* hgs)
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0
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135 {
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136 if (ident !is null) {
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137 buf.printf("version (%s)", ident.toChars());
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138 } else {
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139 buf.printf("version (%u)", level);
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140 }
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141 }
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72
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142 }
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