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336
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1
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2 // Compiler implementation of the D programming language
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3 // Copyright (c) 1999-2008 by Digital Mars
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4 // All Rights Reserved
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5 // written by Walter Bright
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6 // http://www.digitalmars.com
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7 // License for redistribution is by either the Artistic License
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8 // in artistic.txt, or the GNU General Public License in gnu.txt.
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9 // See the included readme.txt for details.
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10
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11 #ifndef DMD_STATEMENT_H
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12 #define DMD_STATEMENT_H
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13
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14 #ifdef __DMC__
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15 #pragma once
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16 #endif /* __DMC__ */
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17
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18 #include "root.h"
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19
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20 #include "arraytypes.h"
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21 #include "dsymbol.h"
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22 #include "lexer.h"
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23
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24 struct OutBuffer;
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25 struct Scope;
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26 struct Expression;
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27 struct LabelDsymbol;
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28 struct Identifier;
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29 struct IfStatement;
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30 struct DeclarationStatement;
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31 struct DefaultStatement;
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32 struct VarDeclaration;
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33 struct Condition;
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34 struct Module;
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35 struct Token;
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36 struct InlineCostState;
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37 struct InlineDoState;
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38 struct InlineScanState;
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39 struct ReturnStatement;
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40 struct CompoundStatement;
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41 struct Argument;
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42 struct StaticAssert;
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43 struct AsmStatement;
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44 struct AsmBlockStatement;
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45 struct GotoStatement;
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46 struct ScopeStatement;
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47 struct TryCatchStatement;
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48 struct TryFinallyStatement;
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49 struct HdrGenState;
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50 struct InterState;
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51 struct CaseStatement;
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52 struct LabelStatement;
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53 struct VolatileStatement;
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54 struct SynchronizedStatement;
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55
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56 enum TOK;
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57
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58 namespace llvm
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59 {
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60 class Value;
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61 class BasicBlock;
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62 class ConstantInt;
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63 }
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64
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65 // Back end
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66 struct IRState;
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67 struct Blockx;
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68 #if IN_LLVM
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69 struct DValue;
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70 typedef DValue elem;
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71 #endif
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72
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73 #if IN_GCC
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74 union tree_node; typedef union tree_node block;
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75 //union tree_node; typedef union tree_node elem;
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76 #else
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77 struct block;
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78 //struct elem;
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79 #endif
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80 struct code;
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81
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82 /* How a statement exits
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83 */
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84 enum BE
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85 {
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86 BEnone = 0,
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87 BEfallthru = 1,
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88 BEthrow = 2,
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89 BEreturn = 4,
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90 BEgoto = 8,
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91 BEhalt = 0x10,
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92 BEbreak = 0x20,
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93 BEcontinue = 0x40,
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94 BEany = (BEfallthru | BEthrow | BEreturn | BEgoto | BEhalt),
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95 };
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96
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97 // LLVMDC this is used for tracking try-finally, synchronized and volatile scopes
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98 // definitions in gen/llvmhelpers.cpp
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99 struct EnclosingHandler : Object
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100 {
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101 virtual void emitCode(IRState* p) = 0;
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102 virtual EnclosingHandler* getEnclosing() = 0;
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103 };
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104 struct EnclosingTryFinally : EnclosingHandler
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105 {
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106 TryFinallyStatement* tf;
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107 void emitCode(IRState* p);
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108 EnclosingHandler* getEnclosing();
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109 EnclosingTryFinally(TryFinallyStatement* _tf) : tf(_tf) {}
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110 };
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111 struct EnclosingVolatile : EnclosingHandler
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112 {
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113 VolatileStatement* v;
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114 void emitCode(IRState* p);
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115 EnclosingHandler* getEnclosing();
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116 EnclosingVolatile(VolatileStatement* _tf) : v(_tf) {}
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117 };
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118 struct EnclosingSynchro : EnclosingHandler
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119 {
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120 SynchronizedStatement* s;
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121 void emitCode(IRState* p);
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122 EnclosingHandler* getEnclosing();
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123 EnclosingSynchro(SynchronizedStatement* _tf) : s(_tf) {}
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124 };
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125
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126 struct Statement : Object
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127 {
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128 Loc loc;
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129
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130 Statement(Loc loc);
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131 virtual Statement *syntaxCopy();
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132
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133 void print();
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134 char *toChars();
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135
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136 void error(const char *format, ...);
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137 virtual void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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138 virtual TryCatchStatement *isTryCatchStatement() { return NULL; }
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139 virtual GotoStatement *isGotoStatement() { return NULL; }
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140 virtual AsmStatement *isAsmStatement() { return NULL; }
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141 virtual AsmBlockStatement *isAsmBlockStatement() { return NULL; }
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142 #ifdef _DH
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143 int incontract;
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144 #endif
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145 virtual ScopeStatement *isScopeStatement() { return NULL; }
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146 virtual Statement *semantic(Scope *sc);
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147 Statement *semanticScope(Scope *sc, Statement *sbreak, Statement *scontinue);
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148 virtual int hasBreak();
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149 virtual int hasContinue();
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150 virtual int usesEH();
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151 virtual int fallOffEnd();
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152 virtual int blockExit();
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153 virtual int comeFrom();
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154 virtual void scopeCode(Statement **sentry, Statement **sexit, Statement **sfinally);
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155 virtual Statements *flatten(Scope *sc);
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156 virtual Expression *interpret(InterState *istate);
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157
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158 virtual int inlineCost(InlineCostState *ics);
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159 virtual Expression *doInline(InlineDoState *ids);
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160 virtual Statement *inlineScan(InlineScanState *iss);
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161
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162 // Back end
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163 virtual void toIR(IRState *irs);
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164
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165 // Avoid dynamic_cast
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166 virtual DeclarationStatement *isDeclarationStatement() { return NULL; }
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167 virtual CompoundStatement *isCompoundStatement() { return NULL; }
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168 virtual ReturnStatement *isReturnStatement() { return NULL; }
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169 virtual IfStatement *isIfStatement() { return NULL; }
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170 virtual CaseStatement* isCaseStatement() { return NULL; }
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171 };
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172
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173 struct ExpStatement : Statement
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174 {
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175 Expression *exp;
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176
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177 ExpStatement(Loc loc, Expression *exp);
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178 Statement *syntaxCopy();
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179 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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180 Statement *semantic(Scope *sc);
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181 Expression *interpret(InterState *istate);
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182 int fallOffEnd();
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183 int blockExit();
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184
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185 int inlineCost(InlineCostState *ics);
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186 Expression *doInline(InlineDoState *ids);
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187 Statement *inlineScan(InlineScanState *iss);
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188
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189 void toIR(IRState *irs);
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190 };
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191
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192 struct CompileStatement : Statement
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193 {
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194 Expression *exp;
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195
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196 CompileStatement(Loc loc, Expression *exp);
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197 Statement *syntaxCopy();
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198 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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199 Statements *flatten(Scope *sc);
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200 Statement *semantic(Scope *sc);
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201 };
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202
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203 struct DeclarationStatement : ExpStatement
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204 {
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205 // Doing declarations as an expression, rather than a statement,
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206 // makes inlining functions much easier.
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207
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208 DeclarationStatement(Loc loc, Dsymbol *s);
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209 DeclarationStatement(Loc loc, Expression *exp);
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210 Statement *syntaxCopy();
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211 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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212 void scopeCode(Statement **sentry, Statement **sexit, Statement **sfinally);
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213
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214 DeclarationStatement *isDeclarationStatement() { return this; }
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215 };
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216
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217 struct CompoundStatement : Statement
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218 {
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219 Statements *statements;
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220
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221 CompoundStatement(Loc loc, Statements *s);
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222 CompoundStatement(Loc loc, Statement *s1, Statement *s2);
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223 virtual Statement *syntaxCopy();
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224 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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225 virtual Statement *semantic(Scope *sc);
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226 int usesEH();
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227 int blockExit();
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228 int fallOffEnd();
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229 int comeFrom();
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230 virtual Statements *flatten(Scope *sc);
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231 ReturnStatement *isReturnStatement();
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232 Expression *interpret(InterState *istate);
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233
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234 int inlineCost(InlineCostState *ics);
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235 Expression *doInline(InlineDoState *ids);
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236 Statement *inlineScan(InlineScanState *iss);
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237
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238 virtual void toIR(IRState *irs);
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239
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240 virtual CompoundStatement *isCompoundStatement() { return this; }
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241 };
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242
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243 /* The purpose of this is so that continue will go to the next
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244 * of the statements, and break will go to the end of the statements.
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245 */
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246 struct UnrolledLoopStatement : Statement
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247 {
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248 Statements *statements;
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249 EnclosingHandler* enclosinghandler;
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250
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251 UnrolledLoopStatement(Loc loc, Statements *statements);
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252 Statement *syntaxCopy();
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253 Statement *semantic(Scope *sc);
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254 int hasBreak();
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255 int hasContinue();
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256 int usesEH();
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257 int blockExit();
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258 int fallOffEnd();
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259 int comeFrom();
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260 Expression *interpret(InterState *istate);
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261 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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262
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263 int inlineCost(InlineCostState *ics);
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264 Expression *doInline(InlineDoState *ids);
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265 Statement *inlineScan(InlineScanState *iss);
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266
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267 void toIR(IRState *irs);
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268 };
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269
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270 struct ScopeStatement : Statement
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271 {
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272 Statement *statement;
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273
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274 ScopeStatement(Loc loc, Statement *s);
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275 Statement *syntaxCopy();
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276 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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277 ScopeStatement *isScopeStatement() { return this; }
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278 Statement *semantic(Scope *sc);
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279 int hasBreak();
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280 int hasContinue();
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281 int usesEH();
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282 int blockExit();
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283 int fallOffEnd();
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284 int comeFrom();
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285 Expression *interpret(InterState *istate);
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286
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287 Statement *inlineScan(InlineScanState *iss);
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288
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289 void toIR(IRState *irs);
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290 };
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291
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292 struct WhileStatement : Statement
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293 {
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294 Expression *condition;
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295 Statement *body;
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296 EnclosingHandler* enclosinghandler;
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297
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298 WhileStatement(Loc loc, Expression *c, Statement *b);
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299 Statement *syntaxCopy();
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300 Statement *semantic(Scope *sc);
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301 int hasBreak();
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302 int hasContinue();
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303 int usesEH();
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304 int blockExit();
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305 int fallOffEnd();
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306 int comeFrom();
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307 Expression *interpret(InterState *istate);
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308 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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309
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310 Statement *inlineScan(InlineScanState *iss);
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311
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312 void toIR(IRState *irs);
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313 };
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314
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315 struct DoStatement : Statement
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316 {
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317 Statement *body;
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318 Expression *condition;
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319 EnclosingHandler* enclosinghandler;
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320
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321 DoStatement(Loc loc, Statement *b, Expression *c);
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322 Statement *syntaxCopy();
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323 Statement *semantic(Scope *sc);
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324 int hasBreak();
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325 int hasContinue();
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326 int usesEH();
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327 int blockExit();
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328 int fallOffEnd();
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329 int comeFrom();
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330 Expression *interpret(InterState *istate);
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331 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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332
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333 Statement *inlineScan(InlineScanState *iss);
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334
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335 void toIR(IRState *irs);
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336 };
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337
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338 struct ForStatement : Statement
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339 {
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340 Statement *init;
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341 Expression *condition;
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342 Expression *increment;
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343 Statement *body;
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344 EnclosingHandler* enclosinghandler;
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345
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346 ForStatement(Loc loc, Statement *init, Expression *condition, Expression *increment, Statement *body);
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347 Statement *syntaxCopy();
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348 Statement *semantic(Scope *sc);
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349 void scopeCode(Statement **sentry, Statement **sexit, Statement **sfinally);
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350 int hasBreak();
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351 int hasContinue();
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352 int usesEH();
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353 int blockExit();
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354 int fallOffEnd();
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355 int comeFrom();
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356 Expression *interpret(InterState *istate);
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357 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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358
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359 Statement *inlineScan(InlineScanState *iss);
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360
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361 void toIR(IRState *irs);
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362 };
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363
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364 struct ForeachStatement : Statement
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365 {
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366 enum TOK op; // TOKforeach or TOKforeach_reverse
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367 Arguments *arguments; // array of Argument*'s
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368 Expression *aggr;
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369 Statement *body;
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370 EnclosingHandler* enclosinghandler;
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371
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372 VarDeclaration *key;
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373 VarDeclaration *value;
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374
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375 FuncDeclaration *func; // function we're lexically in
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376
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377 Array cases; // put breaks, continues, gotos and returns here
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378 Array gotos; // forward referenced goto's go here
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379
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380 ForeachStatement(Loc loc, enum TOK op, Arguments *arguments, Expression *aggr, Statement *body);
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381 Statement *syntaxCopy();
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382 Statement *semantic(Scope *sc);
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383 int hasBreak();
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384 int hasContinue();
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385 int usesEH();
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386 int blockExit();
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387 int fallOffEnd();
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388 int comeFrom();
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389 Expression *interpret(InterState *istate);
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390 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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391
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392 Statement *inlineScan(InlineScanState *iss);
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393
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394 void toIR(IRState *irs);
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395 };
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396
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397 #if DMDV2
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398 struct ForeachRangeStatement : Statement
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399 {
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400 enum TOK op; // TOKforeach or TOKforeach_reverse
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401 Argument *arg; // loop index variable
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402 Expression *lwr;
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403 Expression *upr;
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404 Statement *body;
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405
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406 VarDeclaration *key;
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407
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408 ForeachRangeStatement(Loc loc, enum TOK op, Argument *arg,
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409 Expression *lwr, Expression *upr, Statement *body);
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410 Statement *syntaxCopy();
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411 Statement *semantic(Scope *sc);
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412 int hasBreak();
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413 int hasContinue();
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414 int usesEH();
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415 int blockExit();
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416 int fallOffEnd();
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417 int comeFrom();
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418 Expression *interpret(InterState *istate);
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419 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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420
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421 Statement *inlineScan(InlineScanState *iss);
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422
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423 void toIR(IRState *irs);
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424 };
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425 #endif
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426
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427 struct IfStatement : Statement
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428 {
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429 Argument *arg;
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430 Expression *condition;
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431 Statement *ifbody;
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432 Statement *elsebody;
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433
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434 VarDeclaration *match; // for MatchExpression results
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435
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436 IfStatement(Loc loc, Argument *arg, Expression *condition, Statement *ifbody, Statement *elsebody);
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437 Statement *syntaxCopy();
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438 Statement *semantic(Scope *sc);
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439 Expression *interpret(InterState *istate);
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440 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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441 int usesEH();
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442 int blockExit();
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443 int fallOffEnd();
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444 IfStatement *isIfStatement() { return this; }
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445
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446 int inlineCost(InlineCostState *ics);
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447 Expression *doInline(InlineDoState *ids);
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448 Statement *inlineScan(InlineScanState *iss);
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449
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450 void toIR(IRState *irs);
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|
|
451 };
|
|
|
452
|
|
|
453 struct ConditionalStatement : Statement
|
|
|
454 {
|
|
|
455 Condition *condition;
|
|
|
456 Statement *ifbody;
|
|
|
457 Statement *elsebody;
|
|
|
458
|
|
|
459 ConditionalStatement(Loc loc, Condition *condition, Statement *ifbody, Statement *elsebody);
|
|
|
460 Statement *syntaxCopy();
|
|
|
461 Statement *semantic(Scope *sc);
|
|
|
462 Statements *flatten(Scope *sc);
|
|
|
463 int usesEH();
|
|
|
464
|
|
|
465 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
466 };
|
|
|
467
|
|
|
468 struct PragmaStatement : Statement
|
|
|
469 {
|
|
|
470 Identifier *ident;
|
|
|
471 Expressions *args; // array of Expression's
|
|
|
472 Statement *body;
|
|
|
473
|
|
|
474 PragmaStatement(Loc loc, Identifier *ident, Expressions *args, Statement *body);
|
|
|
475 Statement *syntaxCopy();
|
|
|
476 Statement *semantic(Scope *sc);
|
|
|
477 int usesEH();
|
|
|
478 int blockExit();
|
|
|
479 int fallOffEnd();
|
|
|
480
|
|
|
481 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
482 };
|
|
|
483
|
|
|
484 struct StaticAssertStatement : Statement
|
|
|
485 {
|
|
|
486 StaticAssert *sa;
|
|
|
487
|
|
|
488 StaticAssertStatement(StaticAssert *sa);
|
|
|
489 Statement *syntaxCopy();
|
|
|
490 Statement *semantic(Scope *sc);
|
|
|
491
|
|
|
492 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
493 };
|
|
|
494
|
|
|
495 struct SwitchStatement : Statement
|
|
|
496 {
|
|
|
497 Expression *condition;
|
|
|
498 Statement *body;
|
|
|
499
|
|
|
500 DefaultStatement *sdefault;
|
|
|
501 EnclosingHandler* enclosinghandler;
|
|
|
502
|
|
|
503 Array gotoCases; // array of unresolved GotoCaseStatement's
|
|
|
504 Array *cases; // array of CaseStatement's
|
|
|
505 int hasNoDefault; // !=0 if no default statement
|
|
|
506
|
|
|
507 SwitchStatement(Loc loc, Expression *c, Statement *b);
|
|
|
508 Statement *syntaxCopy();
|
|
|
509 Statement *semantic(Scope *sc);
|
|
|
510 int hasBreak();
|
|
|
511 int usesEH();
|
|
|
512 int blockExit();
|
|
|
513 int fallOffEnd();
|
|
|
514 Expression *interpret(InterState *istate);
|
|
|
515 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
516
|
|
|
517 Statement *inlineScan(InlineScanState *iss);
|
|
|
518
|
|
|
519 void toIR(IRState *irs);
|
|
|
520 };
|
|
|
521
|
|
|
522 struct CaseStatement : Statement
|
|
|
523 {
|
|
|
524 Expression *exp;
|
|
|
525 Statement *statement;
|
|
|
526 int index; // which case it is (since we sort this)
|
|
|
527 block *cblock; // back end: label for the block
|
|
|
528
|
|
|
529 CaseStatement(Loc loc, Expression *exp, Statement *s);
|
|
|
530 Statement *syntaxCopy();
|
|
|
531 Statement *semantic(Scope *sc);
|
|
|
532 int compare(Object *obj);
|
|
|
533 int usesEH();
|
|
|
534 int blockExit();
|
|
|
535 int fallOffEnd();
|
|
|
536 int comeFrom();
|
|
|
537 Expression *interpret(InterState *istate);
|
|
|
538 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
539
|
|
|
540 Statement *inlineScan(InlineScanState *iss);
|
|
|
541
|
|
|
542 void toIR(IRState *irs);
|
|
|
543
|
|
|
544 CaseStatement* isCaseStatement() { return this; }
|
|
|
545
|
|
|
546 // LLVMDC
|
|
|
547 llvm::BasicBlock* bodyBB;
|
|
|
548 llvm::ConstantInt* llvmIdx;
|
|
|
549 };
|
|
|
550
|
|
|
551 struct DefaultStatement : Statement
|
|
|
552 {
|
|
|
553 Statement *statement;
|
|
|
554 #if IN_GCC
|
|
|
555 block *cblock; // back end: label for the block
|
|
|
556 #endif
|
|
|
557
|
|
|
558 DefaultStatement(Loc loc, Statement *s);
|
|
|
559 Statement *syntaxCopy();
|
|
|
560 Statement *semantic(Scope *sc);
|
|
|
561 int usesEH();
|
|
|
562 int blockExit();
|
|
|
563 int fallOffEnd();
|
|
|
564 int comeFrom();
|
|
|
565 Expression *interpret(InterState *istate);
|
|
|
566 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
567
|
|
|
568 Statement *inlineScan(InlineScanState *iss);
|
|
|
569
|
|
|
570 void toIR(IRState *irs);
|
|
|
571
|
|
|
572 // LLVMDC
|
|
|
573 llvm::BasicBlock* bodyBB;
|
|
|
574 };
|
|
|
575
|
|
|
576 struct GotoDefaultStatement : Statement
|
|
|
577 {
|
|
|
578 SwitchStatement *sw;
|
|
|
579 EnclosingHandler* enclosinghandler;
|
|
|
580
|
|
|
581 GotoDefaultStatement(Loc loc);
|
|
|
582 Statement *syntaxCopy();
|
|
|
583 Statement *semantic(Scope *sc);
|
|
|
584 Expression *interpret(InterState *istate);
|
|
|
585 int blockExit();
|
|
|
586 int fallOffEnd();
|
|
|
587 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
588
|
|
|
589 void toIR(IRState *irs);
|
|
|
590 };
|
|
|
591
|
|
|
592 struct GotoCaseStatement : Statement
|
|
|
593 {
|
|
|
594 Expression *exp; // NULL, or which case to goto
|
|
|
595 CaseStatement *cs; // case statement it resolves to
|
|
|
596 EnclosingHandler* enclosinghandler;
|
|
|
597 SwitchStatement *sw;
|
|
|
598
|
|
|
599 GotoCaseStatement(Loc loc, Expression *exp);
|
|
|
600 Statement *syntaxCopy();
|
|
|
601 Statement *semantic(Scope *sc);
|
|
|
602 Expression *interpret(InterState *istate);
|
|
|
603 int blockExit();
|
|
|
604 int fallOffEnd();
|
|
|
605 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
606
|
|
|
607 void toIR(IRState *irs);
|
|
|
608 };
|
|
|
609
|
|
|
610 struct SwitchErrorStatement : Statement
|
|
|
611 {
|
|
|
612 SwitchErrorStatement(Loc loc);
|
|
|
613 int blockExit();
|
|
|
614 int fallOffEnd();
|
|
|
615 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
616
|
|
|
617 void toIR(IRState *irs);
|
|
|
618 };
|
|
|
619
|
|
|
620 struct ReturnStatement : Statement
|
|
|
621 {
|
|
|
622 Expression *exp;
|
|
|
623 EnclosingHandler* enclosinghandler;
|
|
|
624
|
|
|
625 ReturnStatement(Loc loc, Expression *exp);
|
|
|
626 Statement *syntaxCopy();
|
|
|
627 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
628 Statement *semantic(Scope *sc);
|
|
|
629 int blockExit();
|
|
|
630 int fallOffEnd();
|
|
|
631 Expression *interpret(InterState *istate);
|
|
|
632
|
|
|
633 int inlineCost(InlineCostState *ics);
|
|
|
634 Expression *doInline(InlineDoState *ids);
|
|
|
635 Statement *inlineScan(InlineScanState *iss);
|
|
|
636
|
|
|
637 void toIR(IRState *irs);
|
|
|
638
|
|
|
639 ReturnStatement *isReturnStatement() { return this; }
|
|
|
640 };
|
|
|
641
|
|
|
642 struct BreakStatement : Statement
|
|
|
643 {
|
|
|
644 Identifier *ident;
|
|
|
645 EnclosingHandler* enclosinghandler;
|
|
|
646
|
|
|
647 BreakStatement(Loc loc, Identifier *ident);
|
|
|
648 Statement *syntaxCopy();
|
|
|
649 Statement *semantic(Scope *sc);
|
|
|
650 Expression *interpret(InterState *istate);
|
|
|
651 int blockExit();
|
|
|
652 int fallOffEnd();
|
|
|
653 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
654
|
|
|
655 void toIR(IRState *irs);
|
|
|
656
|
|
|
657 // LLVMDC: only set if ident is set: label statement to jump to
|
|
|
658 LabelStatement *target;
|
|
|
659 };
|
|
|
660
|
|
|
661 struct ContinueStatement : Statement
|
|
|
662 {
|
|
|
663 Identifier *ident;
|
|
|
664 EnclosingHandler* enclosinghandler;
|
|
|
665
|
|
|
666 ContinueStatement(Loc loc, Identifier *ident);
|
|
|
667 Statement *syntaxCopy();
|
|
|
668 Statement *semantic(Scope *sc);
|
|
|
669 Expression *interpret(InterState *istate);
|
|
|
670 int blockExit();
|
|
|
671 int fallOffEnd();
|
|
|
672 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
673
|
|
|
674 void toIR(IRState *irs);
|
|
|
675
|
|
|
676 // LLVMDC: only set if ident is set: label statement to jump to
|
|
|
677 LabelStatement *target;
|
|
|
678 };
|
|
|
679
|
|
|
680 struct SynchronizedStatement : Statement
|
|
|
681 {
|
|
|
682 Expression *exp;
|
|
|
683 Statement *body;
|
|
|
684 EnclosingHandler* enclosinghandler;
|
|
|
685
|
|
|
686 SynchronizedStatement(Loc loc, Expression *exp, Statement *body);
|
|
|
687 Statement *syntaxCopy();
|
|
|
688 Statement *semantic(Scope *sc);
|
|
|
689 int hasBreak();
|
|
|
690 int hasContinue();
|
|
|
691 int usesEH();
|
|
|
692 int blockExit();
|
|
|
693 int fallOffEnd();
|
|
|
694 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
695
|
|
|
696 Statement *inlineScan(InlineScanState *iss);
|
|
|
697
|
|
|
698 // Back end
|
|
|
699 elem *esync;
|
|
|
700 SynchronizedStatement(Loc loc, elem *esync, Statement *body);
|
|
|
701 void toIR(IRState *irs);
|
|
|
702 llvm::Value* llsync;
|
|
|
703 };
|
|
|
704
|
|
|
705 struct WithStatement : Statement
|
|
|
706 {
|
|
|
707 Expression *exp;
|
|
|
708 Statement *body;
|
|
|
709 VarDeclaration *wthis;
|
|
|
710
|
|
|
711 WithStatement(Loc loc, Expression *exp, Statement *body);
|
|
|
712 Statement *syntaxCopy();
|
|
|
713 Statement *semantic(Scope *sc);
|
|
|
714 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
715 int usesEH();
|
|
|
716 int blockExit();
|
|
|
717 int fallOffEnd();
|
|
|
718
|
|
|
719 Statement *inlineScan(InlineScanState *iss);
|
|
|
720
|
|
|
721 void toIR(IRState *irs);
|
|
|
722 };
|
|
|
723
|
|
|
724 struct TryCatchStatement : Statement
|
|
|
725 {
|
|
|
726 Statement *body;
|
|
|
727 Array *catches;
|
|
|
728
|
|
|
729 TryCatchStatement(Loc loc, Statement *body, Array *catches);
|
|
|
730 Statement *syntaxCopy();
|
|
|
731 Statement *semantic(Scope *sc);
|
|
|
732 int hasBreak();
|
|
|
733 int usesEH();
|
|
|
734 int blockExit();
|
|
|
735 int fallOffEnd();
|
|
|
736
|
|
|
737 Statement *inlineScan(InlineScanState *iss);
|
|
|
738
|
|
|
739 void toIR(IRState *irs);
|
|
|
740 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
741 TryCatchStatement *isTryCatchStatement() { return this; }
|
|
|
742 };
|
|
|
743
|
|
|
744 struct Catch : Object
|
|
|
745 {
|
|
|
746 Loc loc;
|
|
|
747 Type *type;
|
|
|
748 Identifier *ident;
|
|
|
749 VarDeclaration *var;
|
|
|
750 Statement *handler;
|
|
|
751
|
|
|
752 Catch(Loc loc, Type *t, Identifier *id, Statement *handler);
|
|
|
753 Catch *syntaxCopy();
|
|
|
754 void semantic(Scope *sc);
|
|
|
755 int blockExit();
|
|
|
756 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
757 };
|
|
|
758
|
|
|
759 struct TryFinallyStatement : Statement
|
|
|
760 {
|
|
|
761 Statement *body;
|
|
|
762 Statement *finalbody;
|
|
|
763 EnclosingHandler* enclosinghandler;
|
|
|
764
|
|
|
765 TryFinallyStatement(Loc loc, Statement *body, Statement *finalbody);
|
|
|
766 Statement *syntaxCopy();
|
|
|
767 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
768 Statement *semantic(Scope *sc);
|
|
|
769 int hasBreak();
|
|
|
770 int hasContinue();
|
|
|
771 int usesEH();
|
|
|
772 int blockExit();
|
|
|
773 int fallOffEnd();
|
|
|
774
|
|
|
775 Statement *inlineScan(InlineScanState *iss);
|
|
|
776
|
|
|
777 void toIR(IRState *irs);
|
|
|
778 };
|
|
|
779
|
|
|
780 struct OnScopeStatement : Statement
|
|
|
781 {
|
|
|
782 TOK tok;
|
|
|
783 Statement *statement;
|
|
|
784
|
|
|
785 OnScopeStatement(Loc loc, TOK tok, Statement *statement);
|
|
|
786 Statement *syntaxCopy();
|
|
|
787 int blockExit();
|
|
|
788 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
789 Statement *semantic(Scope *sc);
|
|
|
790 int usesEH();
|
|
|
791 void scopeCode(Statement **sentry, Statement **sexit, Statement **sfinally);
|
|
|
792
|
|
|
793 void toIR(IRState *irs);
|
|
|
794 };
|
|
|
795
|
|
|
796 struct ThrowStatement : Statement
|
|
|
797 {
|
|
|
798 Expression *exp;
|
|
|
799
|
|
|
800 ThrowStatement(Loc loc, Expression *exp);
|
|
|
801 Statement *syntaxCopy();
|
|
|
802 Statement *semantic(Scope *sc);
|
|
|
803 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
804 int blockExit();
|
|
|
805 int fallOffEnd();
|
|
|
806
|
|
|
807 Statement *inlineScan(InlineScanState *iss);
|
|
|
808
|
|
|
809 void toIR(IRState *irs);
|
|
|
810 };
|
|
|
811
|
|
|
812 struct VolatileStatement : Statement
|
|
|
813 {
|
|
|
814 Statement *statement;
|
|
|
815 EnclosingHandler* enclosinghandler;
|
|
|
816
|
|
|
817 VolatileStatement(Loc loc, Statement *statement);
|
|
|
818 Statement *syntaxCopy();
|
|
|
819 Statement *semantic(Scope *sc);
|
|
|
820 Statements *flatten(Scope *sc);
|
|
|
821 int blockExit();
|
|
|
822 int fallOffEnd();
|
|
|
823 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
824
|
|
|
825 Statement *inlineScan(InlineScanState *iss);
|
|
|
826
|
|
|
827 void toIR(IRState *irs);
|
|
|
828 };
|
|
|
829
|
|
|
830 struct GotoStatement : Statement
|
|
|
831 {
|
|
|
832 Identifier *ident;
|
|
|
833 LabelDsymbol *label;
|
|
|
834 TryFinallyStatement *tf;
|
|
|
835 EnclosingHandler* enclosinghandler;
|
|
|
836
|
|
|
837 GotoStatement(Loc loc, Identifier *ident);
|
|
|
838 Statement *syntaxCopy();
|
|
|
839 Statement *semantic(Scope *sc);
|
|
|
840 int blockExit();
|
|
|
841 int fallOffEnd();
|
|
|
842 Expression *interpret(InterState *istate);
|
|
|
843
|
|
|
844 void toIR(IRState *irs);
|
|
|
845 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
846 GotoStatement *isGotoStatement() { return this; }
|
|
|
847 };
|
|
|
848
|
|
|
849 struct LabelStatement : Statement
|
|
|
850 {
|
|
|
851 Identifier *ident;
|
|
|
852 Statement *statement;
|
|
|
853 TryFinallyStatement *tf;
|
|
|
854 EnclosingHandler* enclosinghandler;
|
|
|
855 block *lblock; // back end
|
|
|
856 int isReturnLabel;
|
|
|
857
|
|
|
858 LabelStatement(Loc loc, Identifier *ident, Statement *statement);
|
|
|
859 Statement *syntaxCopy();
|
|
|
860 Statement *semantic(Scope *sc);
|
|
|
861 Statements *flatten(Scope *sc);
|
|
|
862 int usesEH();
|
|
|
863 int blockExit();
|
|
|
864 int fallOffEnd();
|
|
|
865 int comeFrom();
|
|
|
866 Expression *interpret(InterState *istate);
|
|
|
867 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
868
|
|
|
869 Statement *inlineScan(InlineScanState *iss);
|
|
|
870
|
|
|
871 void toIR(IRState *irs);
|
|
|
872
|
|
|
873 // LLVMDC
|
|
|
874 bool asmLabel; // for labels inside inline assembler
|
|
|
875 };
|
|
|
876
|
|
|
877 struct LabelDsymbol : Dsymbol
|
|
|
878 {
|
|
|
879 LabelStatement *statement;
|
|
|
880
|
|
|
881 LabelDsymbol(Identifier *ident);
|
|
|
882 LabelDsymbol *isLabel();
|
|
|
883 };
|
|
|
884
|
|
|
885 struct AsmStatement : Statement
|
|
|
886 {
|
|
|
887 Token *tokens;
|
|
|
888 code *asmcode;
|
|
|
889 unsigned asmalign; // alignment of this statement
|
|
|
890 unsigned refparam; // !=0 if function parameter is referenced
|
|
|
891 unsigned naked; // !=0 if function is to be naked
|
|
|
892 unsigned regs; // mask of registers modified
|
|
|
893
|
|
|
894 AsmStatement(Loc loc, Token *tokens);
|
|
|
895 Statement *syntaxCopy();
|
|
|
896 Statement *semantic(Scope *sc);
|
|
|
897 int blockExit();
|
|
|
898 int comeFrom();
|
|
|
899
|
|
|
900 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
901 virtual AsmStatement *isAsmStatement() { return this; }
|
|
|
902
|
|
|
903 void toIR(IRState *irs);
|
|
|
904
|
|
|
905 // LLVMDC
|
|
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906 // non-zero if this is a branch, contains the target labels identifier
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907 Identifier* isBranchToLabel;
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908 };
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909
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910 struct AsmBlockStatement : CompoundStatement
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911 {
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912 EnclosingHandler* enclosinghandler;
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913
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914 AsmBlockStatement(Loc loc, Statements *s);
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915 Statements *flatten(Scope *sc);
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916 Statement *syntaxCopy();
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917 Statement *semantic(Scope *sc);
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918
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919 CompoundStatement *isCompoundStatement() { return NULL; }
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920 AsmBlockStatement *isAsmBlockStatement() { return this; }
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921
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922 void toIR(IRState *irs);
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923 };
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924
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925 #endif /* DMD_STATEMENT_H */
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