1 | #include "stdafx.h"
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2 |
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3 | #ifdef _AMD64_
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4 | #include "../../BasicCompiler64/opcode.h"
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5 | #else
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6 | #include "../../BasicCompiler32/opcode.h"
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7 | #endif
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8 |
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9 | #include <Exception.h>
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10 |
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11 | namespace Exception{
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12 |
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13 | class TryScope
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14 | {
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15 | bool isCatched;
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16 | bool isDefinedFinally;
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17 |
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18 | std::vector<const PertialSchedule *> finallySchedules;
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19 | void JmpFinally()
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20 | {
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21 | finallySchedules.push_back(
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22 | compiler.codeGenerator.op_jmp( 0, sizeof(long), true )
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23 | );
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24 | }
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25 | void ResolveJmpFinally()
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26 | {
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27 | BOOST_FOREACH( const PertialSchedule *pPertialSchedule, finallySchedules )
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28 | {
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29 | compiler.codeGenerator.opfix_JmpPertialSchedule( pPertialSchedule );
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30 | }
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31 | }
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32 |
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33 | const PertialSchedule *pPertialScheduleForFinallyAddress;
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34 |
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35 | public:
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36 | const PertialSchedule *pPertialScheduleForCatchAddress;
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37 | TryScope()
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38 | : isCatched( false )
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39 | , isDefinedFinally( false )
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40 | {
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41 | }
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42 | ~TryScope()
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43 | {
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44 | }
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45 |
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46 | bool IsCatched() const
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47 | {
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48 | return isCatched;
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49 | }
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50 | bool IsDefinedFinally() const
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51 | {
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52 | return isDefinedFinally;
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53 | }
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54 |
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55 | void RegistPertialScheduleForCatchAddress( const PertialSchedule *pPertialScheduleForCatchAddress )
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56 | {
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57 | this->pPertialScheduleForCatchAddress = pPertialScheduleForCatchAddress;
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58 | }
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59 | void RegistPertialScheduleForFinallyAddress( const PertialSchedule *pPertialScheduleForFinallyAddress )
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60 | {
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61 | this->pPertialScheduleForFinallyAddress = pPertialScheduleForFinallyAddress;
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62 | }
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63 | const PertialSchedule *GetPertialScheduleForFinallyAddress() const
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64 | {
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65 | return pPertialScheduleForFinallyAddress;
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66 | }
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67 |
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68 |
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69 |
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70 | void Try()
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71 | {
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72 | }
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73 |
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74 | void Catch()
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75 | {
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76 | if( isDefinedFinally )
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77 | {
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78 | SetError(71,NULL,cp);
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79 | return;
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80 | }
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81 |
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82 | isCatched = true;
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83 |
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84 | JmpFinally();
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85 | }
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86 | void Finally()
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87 | {
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88 | if( isDefinedFinally )
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89 | {
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90 | SetError(70,NULL,cp);
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91 | return;
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92 | }
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93 |
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94 | isDefinedFinally = true;
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95 |
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96 | ResolveJmpFinally();
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97 | }
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98 |
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99 | void EndTry()
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100 | {
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101 | if( !isDefinedFinally )
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102 | {
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103 | Finally();
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104 | }
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105 | }
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106 | };
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107 | typedef std::vector<TryScope> TryScopes;
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108 |
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109 | TryScopes tryScopes;
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110 |
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111 | void TryCommand()
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112 | {
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113 | if( UserProc::IsGlobalAreaCompiling() )
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114 | {
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115 | SetError();
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116 | }
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117 |
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118 | tryScopes.push_back( TryScope() );
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119 | tryScopes.back().Try();
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120 |
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121 | int backCp = cp;
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122 |
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123 | char temporary[1024];
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124 | lstrcpy( temporary, "ExceptionService.BeginTryScope( _System_GetNowScopeCatchAddresses() As VoidPtr, _System_GetNowScopeFinallyAddresses() As VoidPtr, _System_GetBp() As LONG_PTR, _System_GetSp() As LONG_PTR )" );
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125 | MakeMiddleCode( temporary );
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126 | ChangeOpcode( temporary );
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127 |
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128 | cp = backCp;
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129 | }
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130 | void CatchCommand( const char *parameter )
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131 | {
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132 | if( tryScopes.size() == 0 )
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133 | {
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134 | SetError(1,NULL,cp);
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135 | return;
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136 | }
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137 |
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138 | Type paramType;
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139 | if( parameter[0] )
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140 | {
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141 | char varName[VN_SIZE], typeName[VN_SIZE];
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142 | SplitSyntacticForAs( parameter, varName, typeName );
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143 | if( !typeName[0] )
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144 | {
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145 | SetError(72,NULL,cp);
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146 | }
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147 | else
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148 | {
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149 | if( !compiler.StringToType( typeName, paramType ) )
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150 | {
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151 | SetError(73,NULL,cp);
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152 | }
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153 | }
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154 | }
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155 |
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156 | // パラメータの扱いが未完成
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157 |
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158 | tryScopes.back().Catch();
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159 |
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160 | // _System_GetNowScopeCatchAddressesを解決
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161 | compiler.codeGenerator.opfix( tryScopes.back().pPertialScheduleForCatchAddress, compiler.codeGenerator.GetNativeCodeSize() );
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162 | }
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163 | void FinallyCommand()
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164 | {
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165 | tryScopes.back().Finally();
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166 |
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167 | int backCp = cp;
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168 |
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169 | char temporary[1024];
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170 | lstrcpy( temporary, "_System_pobj_AllThreads->GetCurrentException()->FinishFinally()" );
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171 | MakeMiddleCode( temporary );
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172 | ChangeOpcode( temporary );
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173 |
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174 | cp = backCp;
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175 |
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176 | //Tryスコープに入るときに引き渡されるパラメータ値を解決
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177 | compiler.codeGenerator.opfix( tryScopes.back().GetPertialScheduleForFinallyAddress(), compiler.codeGenerator.GetNativeCodeSize() );
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178 | }
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179 | void EndTryCommand()
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180 | {
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181 | if( tryScopes.size() == 0 )
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182 | {
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183 | SetError(1,NULL,cp);
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184 | return;
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185 | }
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186 |
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187 | int backCp = cp;
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188 |
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189 | if( !tryScopes.back().IsCatched() )
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190 | {
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191 | // _System_GetNowScopeCatchAddressesを解決
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192 | compiler.codeGenerator.opfix( tryScopes.back().pPertialScheduleForCatchAddress, 0 );
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193 | }
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194 |
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195 | if( !tryScopes.back().IsDefinedFinally() )
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196 | {
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197 | // Finallyが定義されていないときは空のFinallyを定義しておく
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198 | FinallyCommand();
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199 | }
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200 |
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201 | char temporary[1024];
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202 | lstrcpy( temporary, "_System_pobj_AllThreads->GetCurrentException()->EndTryScope()" );
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203 | MakeMiddleCode( temporary );
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204 | ChangeOpcode( temporary );
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205 |
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206 | cp = backCp;
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207 |
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208 | tryScopes.back().EndTry();
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209 | tryScopes.pop_back();
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210 | }
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211 |
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212 | void ThrowCommand( const char *Parameter )
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213 | {
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214 | int backCp = cp;
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215 |
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216 | char temporary[1024];
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217 | lstrcpy( temporary, "_System_pobj_AllThreads->GetCurrentException()->_Throw()" );
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218 | MakeMiddleCode( temporary );
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219 | ChangeOpcode( temporary );
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220 |
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221 | cp = backCp;
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222 | }
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223 |
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224 | void Opcode_Func_System_GetNowScopeCatchAddress()
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225 | {
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226 | if( tryScopes.size() == 0 )
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227 | {
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228 | SetError(1,NULL,cp);
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229 | return;
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230 | }
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231 |
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232 | #ifdef _WIN64
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233 | //mov rax,catchAddress
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234 | const PertialSchedule *pPertialSchedule = compiler.codeGenerator.op_mov_RV( sizeof(long), REG_RAX, 0, Schedule::CatchAddress, true );
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235 | #else
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236 | //mov eax,catchAddress
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237 | const PertialSchedule *pPertialSchedule = compiler.codeGenerator.op_mov_RV( REG_EAX, 0, Schedule::CatchAddress, true );
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238 | #endif
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239 |
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240 | tryScopes.back().RegistPertialScheduleForCatchAddress( pPertialSchedule );
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241 |
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242 | /*
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243 | int dataTableOffset = compiler.GetObjectModule().dataTable.Add( static_cast<LONG_PTR>(0) );
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244 |
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245 | #ifdef _WIN64
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246 | //mov rax,dataTableOffset
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247 | compiler.codeGenerator.op_mov_RV( sizeof(_int64), REG_RAX, dataTableOffset, Schedule::DataTable);
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248 | #else
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249 | //mov eax,dataTableOffset
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250 | compiler.codeGenerator.op_mov_RV( REG_EAX, dataTableOffset, Schedule::DataTable);
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251 | #endif
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252 | */
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253 | }
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254 |
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255 | void Opcode_Func_System_GetNowScopeFinallyAddress()
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256 | {
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257 | if( tryScopes.size() == 0 )
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258 | {
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259 | SetError(1,NULL,cp);
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260 | return;
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261 | }
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262 |
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263 | #ifdef _WIN64
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264 | //mov rax,finallyAddress
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265 | const PertialSchedule *pPertialSchedule = compiler.codeGenerator.op_mov_RV( sizeof(long), REG_RAX, 0, Schedule::CatchAddress, true );
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266 | #else
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267 | //mov eax,finallyAddress
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268 | const PertialSchedule *pPertialSchedule = compiler.codeGenerator.op_mov_RV( REG_EAX, 0, Schedule::CatchAddress, true );
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269 | #endif
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270 |
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271 | tryScopes.back().RegistPertialScheduleForFinallyAddress( pPertialSchedule );
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272 |
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273 | /*
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274 | int dataTableOffset = compiler.GetObjectModule().dataTable.Add( static_cast<LONG_PTR>(0) );
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275 |
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276 | #ifdef _WIN64
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277 | //mov rax,dataTableOffset
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278 | compiler.codeGenerator.op_mov_RV( sizeof(_int64), REG_RAX, dataTableOffset, Schedule::DataTable);
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279 | #else
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280 | //mov eax,dataTableOffset
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281 | compiler.codeGenerator.op_mov_RV( REG_EAX, dataTableOffset, Schedule::DataTable);
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282 | #endif
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283 | */
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284 | }
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285 |
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286 |
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287 | } // Exception
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