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1
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1
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2 // Compiler implementation of the D programming language
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3 // Copyright (c) 1999-2007 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_DECLARATION_H
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12 #define DMD_DECLARATION_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 "dsymbol.h"
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19 #include "lexer.h"
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20 #include "mtype.h"
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21
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22 namespace llvm {
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23 class Value;
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24 }
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25
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26 struct Expression;
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27 struct Statement;
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28 struct LabelDsymbol;
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29 struct Initializer;
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30 struct Module;
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31 struct InlineScanState;
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32 struct ForeachStatement;
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33 struct FuncDeclaration;
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34 struct ExpInitializer;
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35 struct StructDeclaration;
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36 struct TupleType;
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37 struct InterState;
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38
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39 enum PROT;
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40 enum LINK;
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41 enum TOK;
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42 enum MATCH;
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43
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44 enum STC
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45 {
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46 STCundefined = 0,
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47 STCstatic = 1,
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48 STCextern = 2,
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49 STCconst = 4,
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50 STCfinal = 8,
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51 STCabstract = 0x10,
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52 STCparameter = 0x20,
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53 STCfield = 0x40,
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54 STCoverride = 0x80,
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55 STCauto = 0x100,
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56 STCsynchronized = 0x200,
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57 STCdeprecated = 0x400,
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58 STCin = 0x800, // in parameter
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59 STCout = 0x1000, // out parameter
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60 STClazy = 0x2000, // lazy parameter
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61 STCforeach = 0x4000, // variable for foreach loop
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62 STCcomdat = 0x8000, // should go into COMDAT record
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63 STCvariadic = 0x10000, // variadic function argument
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64 STCctorinit = 0x20000, // can only be set inside constructor
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65 STCtemplateparameter = 0x40000, // template parameter
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66 STCscope = 0x80000, // template parameter
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67 STCinvariant = 0x100000,
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68 STCref = 0x200000,
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69 };
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70
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71 struct Match
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72 {
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73 int count; // number of matches found
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74 MATCH last; // match level of lastf
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75 FuncDeclaration *lastf; // last matching function we found
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76 FuncDeclaration *nextf; // current matching function
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77 FuncDeclaration *anyf; // pick a func, any func, to use for error recovery
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78 };
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79
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80 void overloadResolveX(Match *m, FuncDeclaration *f, Expressions *arguments);
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81 int overloadApply(FuncDeclaration *fstart,
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82 int (*fp)(void *, FuncDeclaration *),
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83 void *param);
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84
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85 /**************************************************************/
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86
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87 struct Declaration : Dsymbol
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88 {
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89 Type *type;
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90 unsigned storage_class;
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91 enum PROT protection;
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92 enum LINK linkage;
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93
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94 Declaration(Identifier *id);
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95 void semantic(Scope *sc);
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96 char *kind();
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97 unsigned size(Loc loc);
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98
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99 void emitComment(Scope *sc);
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100 void toDocBuffer(OutBuffer *buf);
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101
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102 char *mangle();
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103 int isStatic() { return storage_class & STCstatic; }
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104 virtual int isStaticConstructor();
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105 virtual int isStaticDestructor();
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106 virtual int isDelete();
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107 virtual int isDataseg();
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108 virtual int isCodeseg();
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109 int isCtorinit() { return storage_class & STCctorinit; }
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110 int isFinal() { return storage_class & STCfinal; }
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111 int isAbstract() { return storage_class & STCabstract; }
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112 int isConst() { return storage_class & STCconst; }
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113 int isAuto() { return storage_class & STCauto; }
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114 int isScope() { return storage_class & (STCscope | STCauto); }
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115 int isSynchronized() { return storage_class & STCsynchronized; }
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116 int isParameter() { return storage_class & STCparameter; }
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117 int isDeprecated() { return storage_class & STCdeprecated; }
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118 int isOverride() { return storage_class & STCoverride; }
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119
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120 int isIn() { return storage_class & STCin; }
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121 int isOut() { return storage_class & STCout; }
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122 int isRef() { return storage_class & STCref; }
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123
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124 enum PROT prot();
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125
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126 Declaration *isDeclaration() { return this; }
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127
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128 virtual void toObjFile(); // compile to .obj file
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129
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130 // llvm stuff
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131 llvm::Value* llvmValue;
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132 };
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133
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134 /**************************************************************/
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135
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136 struct TupleDeclaration : Declaration
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137 {
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138 Objects *objects;
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139 int isexp; // 1: expression tuple
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140
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141 TypeTuple *tupletype; // !=NULL if this is a type tuple
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142
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143 TupleDeclaration(Loc loc, Identifier *ident, Objects *objects);
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144 Dsymbol *syntaxCopy(Dsymbol *);
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145 char *kind();
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146 Type *getType();
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147 int needThis();
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148
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149 TupleDeclaration *isTupleDeclaration() { return this; }
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150 };
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151
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152 /**************************************************************/
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153
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154 struct TypedefDeclaration : Declaration
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155 {
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156 Type *basetype;
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157 Initializer *init;
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158 int sem; // 0: semantic() has not been run
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159 // 1: semantic() is in progress
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160 // 2: semantic() has been run
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161 // 3: semantic2() has been run
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162 int inuse; // used to detect typedef cycles
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163
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164 TypedefDeclaration(Loc loc, Identifier *ident, Type *basetype, Initializer *init);
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165 Dsymbol *syntaxCopy(Dsymbol *);
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166 void semantic(Scope *sc);
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167 void semantic2(Scope *sc);
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168 char *mangle();
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169 char *kind();
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170 Type *getType();
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171 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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172 #ifdef _DH
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173 Type *htype;
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174 Type *hbasetype;
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175 #endif
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176
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177 void toDocBuffer(OutBuffer *buf);
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178
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179 void toObjFile(); // compile to .obj file
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180 void toDebug();
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181 int cvMember(unsigned char *p);
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182
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183 TypedefDeclaration *isTypedefDeclaration() { return this; }
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184
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185 Symbol *sinit;
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186 Symbol *toInitializer();
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187 };
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188
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189 /**************************************************************/
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190
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191 struct AliasDeclaration : Declaration
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192 {
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193 Dsymbol *aliassym;
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194 Dsymbol *overnext; // next in overload list
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195 int inSemantic;
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196
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197 AliasDeclaration(Loc loc, Identifier *ident, Type *type);
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198 AliasDeclaration(Loc loc, Identifier *ident, Dsymbol *s);
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199 Dsymbol *syntaxCopy(Dsymbol *);
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200 void semantic(Scope *sc);
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201 int overloadInsert(Dsymbol *s);
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202 char *kind();
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203 Type *getType();
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204 Dsymbol *toAlias();
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205 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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206 #ifdef _DH
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207 Type *htype;
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208 Dsymbol *haliassym;
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209 #endif
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210
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211 void toDocBuffer(OutBuffer *buf);
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212
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213 AliasDeclaration *isAliasDeclaration() { return this; }
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214 };
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215
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216 /**************************************************************/
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217
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218 struct VarDeclaration : Declaration
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219 {
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220 Initializer *init;
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221 unsigned offset;
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222 int noauto; // no auto semantics
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223 int nestedref; // referenced by a lexically nested function
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224 int inuse;
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225 int ctorinit; // it has been initialized in a ctor
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226 int onstack; // 1: it has been allocated on the stack
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227 // 2: on stack, run destructor anyway
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228 int canassign; // it can be assigned to
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229 Dsymbol *aliassym; // if redone as alias to another symbol
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230 Expression *value; // when interpreting, this is the value
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231 // (NULL if value not determinable)
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232
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233 VarDeclaration(Loc loc, Type *t, Identifier *id, Initializer *init);
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234 Dsymbol *syntaxCopy(Dsymbol *);
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235 void semantic(Scope *sc);
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236 void semantic2(Scope *sc);
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237 char *kind();
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238 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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239 #ifdef _DH
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240 Type *htype;
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241 Initializer *hinit;
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242 #endif
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243 int needThis();
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244 int isImportedSymbol();
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245 int isDataseg();
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246 int hasPointers();
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247 Expression *callAutoDtor();
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248 ExpInitializer *getExpInitializer();
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249 void checkCtorConstInit();
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250 void checkNestedReference(Scope *sc, Loc loc);
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251 Dsymbol *toAlias();
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252
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253 Symbol *toSymbol();
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254 void toObjFile(); // compile to .obj file
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255 int cvMember(unsigned char *p);
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256
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257 // Eliminate need for dynamic_cast
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258 VarDeclaration *isVarDeclaration() { return (VarDeclaration *)this; }
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259 };
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260
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261 /**************************************************************/
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262
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263 // This is a shell around a back end symbol
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264
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265 struct SymbolDeclaration : Declaration
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266 {
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267 Symbol *sym;
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268 StructDeclaration *dsym;
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269
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270 SymbolDeclaration(Loc loc, Symbol *s, StructDeclaration *dsym);
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271
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272 Symbol *toSymbol();
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273
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274 // Eliminate need for dynamic_cast
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275 SymbolDeclaration *isSymbolDeclaration() { return (SymbolDeclaration *)this; }
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276 };
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277
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278 struct ClassInfoDeclaration : VarDeclaration
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279 {
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280 ClassDeclaration *cd;
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281
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282 ClassInfoDeclaration(ClassDeclaration *cd);
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283 Dsymbol *syntaxCopy(Dsymbol *);
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284 void semantic(Scope *sc);
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285
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286 void emitComment(Scope *sc);
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287
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288 Symbol *toSymbol();
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289 };
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290
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291 struct ModuleInfoDeclaration : VarDeclaration
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292 {
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293 Module *mod;
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294
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295 ModuleInfoDeclaration(Module *mod);
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296 Dsymbol *syntaxCopy(Dsymbol *);
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297 void semantic(Scope *sc);
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298
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299 void emitComment(Scope *sc);
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300
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301 Symbol *toSymbol();
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302 };
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303
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304 struct TypeInfoDeclaration : VarDeclaration
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305 {
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306 Type *tinfo;
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307
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308 TypeInfoDeclaration(Type *tinfo, int internal);
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309 Dsymbol *syntaxCopy(Dsymbol *);
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310 void semantic(Scope *sc);
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311
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312 void emitComment(Scope *sc);
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313
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314 Symbol *toSymbol();
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315 void toObjFile(); // compile to .obj file
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316 virtual void toDt(dt_t **pdt);
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317
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318 virtual TypeInfoDeclaration* isTypeInfoDeclaration() { return this; }
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319 };
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320
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321 struct TypeInfoStructDeclaration : TypeInfoDeclaration
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322 {
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323 TypeInfoStructDeclaration(Type *tinfo);
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324
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325 void toDt(dt_t **pdt);
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326 };
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327
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328 struct TypeInfoClassDeclaration : TypeInfoDeclaration
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329 {
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330 TypeInfoClassDeclaration(Type *tinfo);
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331
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332 void toDt(dt_t **pdt);
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333 };
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334
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335 struct TypeInfoInterfaceDeclaration : TypeInfoDeclaration
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336 {
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337 TypeInfoInterfaceDeclaration(Type *tinfo);
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338
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339 void toDt(dt_t **pdt);
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340 };
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341
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342 struct TypeInfoTypedefDeclaration : TypeInfoDeclaration
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343 {
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344 TypeInfoTypedefDeclaration(Type *tinfo);
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345
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346 void toDt(dt_t **pdt);
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347 };
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348
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349 struct TypeInfoPointerDeclaration : TypeInfoDeclaration
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350 {
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351 TypeInfoPointerDeclaration(Type *tinfo);
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352
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353 void toDt(dt_t **pdt);
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354 };
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355
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356 struct TypeInfoArrayDeclaration : TypeInfoDeclaration
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357 {
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358 TypeInfoArrayDeclaration(Type *tinfo);
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359
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360 void toDt(dt_t **pdt);
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361 };
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362
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363 struct TypeInfoStaticArrayDeclaration : TypeInfoDeclaration
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364 {
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365 TypeInfoStaticArrayDeclaration(Type *tinfo);
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366
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367 void toDt(dt_t **pdt);
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368 };
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369
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370 struct TypeInfoAssociativeArrayDeclaration : TypeInfoDeclaration
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371 {
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372 TypeInfoAssociativeArrayDeclaration(Type *tinfo);
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373
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374 void toDt(dt_t **pdt);
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375 };
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376
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377 struct TypeInfoEnumDeclaration : TypeInfoDeclaration
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378 {
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379 TypeInfoEnumDeclaration(Type *tinfo);
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380
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381 void toDt(dt_t **pdt);
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382 };
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383
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384 struct TypeInfoFunctionDeclaration : TypeInfoDeclaration
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385 {
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386 TypeInfoFunctionDeclaration(Type *tinfo);
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387
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388 void toDt(dt_t **pdt);
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389 };
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390
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391 struct TypeInfoDelegateDeclaration : TypeInfoDeclaration
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392 {
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393 TypeInfoDelegateDeclaration(Type *tinfo);
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394
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395 void toDt(dt_t **pdt);
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396 };
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397
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398 struct TypeInfoTupleDeclaration : TypeInfoDeclaration
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399 {
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400 TypeInfoTupleDeclaration(Type *tinfo);
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401
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402 void toDt(dt_t **pdt);
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403 };
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404
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405 struct ThisDeclaration : VarDeclaration
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406 {
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407 ThisDeclaration(Type *t);
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408 Dsymbol *syntaxCopy(Dsymbol *);
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409 };
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410
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411 enum ILS
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412 {
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413 ILSuninitialized, // not computed yet
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414 ILSno, // cannot inline
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415 ILSyes, // can inline
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416 };
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417
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418 /**************************************************************/
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419
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420 struct FuncDeclaration : Declaration
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421 {
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422 Array *fthrows; // Array of Type's of exceptions (not used)
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423 Statement *frequire;
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424 Statement *fensure;
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425 Statement *fbody;
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426
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427 Identifier *outId; // identifier for out statement
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428 VarDeclaration *vresult; // variable corresponding to outId
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429 LabelDsymbol *returnLabel; // where the return goes
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430
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431 DsymbolTable *localsymtab; // used to prevent symbols in different
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432 // scopes from having the same name
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433 VarDeclaration *vthis; // 'this' parameter (member and nested)
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434 VarDeclaration *v_arguments; // '_arguments' parameter
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435 #if IN_GCC
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436 VarDeclaration *v_argptr; // '_argptr' variable
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437 #endif
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438 Dsymbols *parameters; // Array of VarDeclaration's for parameters
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439 DsymbolTable *labtab; // statement label symbol table
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440 Declaration *overnext; // next in overload list
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441 Loc endloc; // location of closing curly bracket
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442 int vtblIndex; // for member functions, index into vtbl[]
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443 int naked; // !=0 if naked
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444 int inlineAsm; // !=0 if has inline assembler
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445 ILS inlineStatus;
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446 int inlineNest; // !=0 if nested inline
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447 int cantInterpret; // !=0 if cannot interpret function
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448 int semanticRun; // !=0 if semantic3() had been run
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449 int nestedFrameRef; // !=0 if nested variables referenced frame ptr
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450 ForeachStatement *fes; // if foreach body, this is the foreach
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451 int introducing; // !=0 if 'introducing' function
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452 Type *tintro; // if !=NULL, then this is the type
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453 // of the 'introducing' function
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454 // this one is overriding
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455 int inferRetType; // !=0 if return type is to be inferred
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456 Scope *scope; // !=NULL means context to use
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457
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458 // Things that should really go into Scope
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459 int hasReturnExp; // 1 if there's a return exp; statement
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460 // 2 if there's a throw statement
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461 // 4 if there's an assert(0)
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462 // 8 if there's inline asm
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463
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464 // Support for NRVO (named return value optimization)
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465 int nrvo_can; // !=0 means we can do it
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466 VarDeclaration *nrvo_var; // variable to replace with shidden
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467 Symbol *shidden; // hidden pointer passed to function
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468
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469 FuncDeclaration(Loc loc, Loc endloc, Identifier *id, enum STC storage_class, Type *type);
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470 Dsymbol *syntaxCopy(Dsymbol *);
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471 void semantic(Scope *sc);
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472 void semantic2(Scope *sc);
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473 void semantic3(Scope *sc);
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474 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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475 void bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs);
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476 int overrides(FuncDeclaration *fd);
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477 int overloadInsert(Dsymbol *s);
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478 FuncDeclaration *overloadExactMatch(Type *t);
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479 FuncDeclaration *overloadResolve(Loc loc, Expressions *arguments);
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480 LabelDsymbol *searchLabel(Identifier *ident);
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481 AggregateDeclaration *isThis();
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482 AggregateDeclaration *isMember2();
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483 int getLevel(Loc loc, FuncDeclaration *fd); // lexical nesting level difference
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484 void appendExp(Expression *e);
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485 void appendState(Statement *s);
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486 char *mangle();
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487 int isMain();
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488 int isWinMain();
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489 int isDllMain();
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490 int isExport();
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491 int isImportedSymbol();
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492 int isAbstract();
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493 int isCodeseg();
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494 virtual int isNested();
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495 int needThis();
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496 virtual int isVirtual();
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497 virtual int addPreInvariant();
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498 virtual int addPostInvariant();
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499 Expression *interpret(InterState *istate, Expressions *arguments);
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500 void inlineScan();
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501 int canInline(int hasthis, int hdrscan = 0);
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502 Expression *doInline(InlineScanState *iss, Expression *ethis, Array *arguments);
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503 char *kind();
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504 void toDocBuffer(OutBuffer *buf);
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505
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506 static FuncDeclaration *genCfunc(Type *treturn, char *name);
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507 static FuncDeclaration *genCfunc(Type *treturn, Identifier *id);
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508
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509 Symbol *toSymbol();
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510 Symbol *toThunkSymbol(int offset); // thunk version
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511 void toObjFile(); // compile to .obj file
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512 int cvMember(unsigned char *p);
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513
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514 FuncDeclaration *isFuncDeclaration() { return this; }
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515 };
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516
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517 struct FuncAliasDeclaration : FuncDeclaration
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518 {
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519 FuncDeclaration *funcalias;
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520
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521 FuncAliasDeclaration(FuncDeclaration *funcalias);
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522
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523 FuncAliasDeclaration *isFuncAliasDeclaration() { return this; }
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524 char *kind();
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525 Symbol *toSymbol();
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526 };
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527
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528 struct FuncLiteralDeclaration : FuncDeclaration
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529 {
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530 enum TOK tok; // TOKfunction or TOKdelegate
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531
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532 FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, enum TOK tok,
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533 ForeachStatement *fes);
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534 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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535 Dsymbol *syntaxCopy(Dsymbol *);
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536 int isNested();
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|
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537
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538 FuncLiteralDeclaration *isFuncLiteralDeclaration() { return this; }
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|
|
539 char *kind();
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540 };
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541
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542 struct CtorDeclaration : FuncDeclaration
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543 { Arguments *arguments;
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544 int varargs;
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545
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546 CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs);
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547 Dsymbol *syntaxCopy(Dsymbol *);
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548 void semantic(Scope *sc);
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549 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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550 char *kind();
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|
551 char *toChars();
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552 int isVirtual();
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|
553 int addPreInvariant();
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|
554 int addPostInvariant();
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|
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555 void toDocBuffer(OutBuffer *buf);
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556
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557 CtorDeclaration *isCtorDeclaration() { return this; }
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558 };
|
|
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559
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|
|
560 struct DtorDeclaration : FuncDeclaration
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561 {
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562 DtorDeclaration(Loc loc, Loc endloc);
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563 Dsymbol *syntaxCopy(Dsymbol *);
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564 void semantic(Scope *sc);
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565 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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566 int isVirtual();
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|
567 int addPreInvariant();
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|
|
568 int addPostInvariant();
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|
|
569 int overloadInsert(Dsymbol *s);
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|
|
570 void emitComment(Scope *sc);
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571
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|
|
572 DtorDeclaration *isDtorDeclaration() { return this; }
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|
573 };
|
|
|
574
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|
|
575 struct StaticCtorDeclaration : FuncDeclaration
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|
|
576 {
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|
|
577 StaticCtorDeclaration(Loc loc, Loc endloc);
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|
|
578 Dsymbol *syntaxCopy(Dsymbol *);
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|
|
579 void semantic(Scope *sc);
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|
|
580 AggregateDeclaration *isThis();
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|
|
581 int isStaticConstructor();
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|
|
582 int isVirtual();
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|
|
583 int addPreInvariant();
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|
|
584 int addPostInvariant();
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|
|
585 void emitComment(Scope *sc);
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|
|
586 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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|
|
587
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|
|
588 StaticCtorDeclaration *isStaticCtorDeclaration() { return this; }
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|
|
589 };
|
|
|
590
|
|
|
591 struct StaticDtorDeclaration : FuncDeclaration
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|
|
592 {
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|
|
593 StaticDtorDeclaration(Loc loc, Loc endloc);
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|
|
594 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
595 void semantic(Scope *sc);
|
|
|
596 AggregateDeclaration *isThis();
|
|
|
597 int isStaticDestructor();
|
|
|
598 int isVirtual();
|
|
|
599 int addPreInvariant();
|
|
|
600 int addPostInvariant();
|
|
|
601 void emitComment(Scope *sc);
|
|
|
602 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
603
|
|
|
604 StaticDtorDeclaration *isStaticDtorDeclaration() { return this; }
|
|
|
605 };
|
|
|
606
|
|
|
607 struct InvariantDeclaration : FuncDeclaration
|
|
|
608 {
|
|
|
609 InvariantDeclaration(Loc loc, Loc endloc);
|
|
|
610 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
611 void semantic(Scope *sc);
|
|
|
612 int isVirtual();
|
|
|
613 int addPreInvariant();
|
|
|
614 int addPostInvariant();
|
|
|
615 void emitComment(Scope *sc);
|
|
|
616 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
617
|
|
|
618 InvariantDeclaration *isInvariantDeclaration() { return this; }
|
|
|
619 };
|
|
|
620
|
|
|
621
|
|
|
622 struct UnitTestDeclaration : FuncDeclaration
|
|
|
623 {
|
|
|
624 UnitTestDeclaration(Loc loc, Loc endloc);
|
|
|
625 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
626 void semantic(Scope *sc);
|
|
|
627 AggregateDeclaration *isThis();
|
|
|
628 int isVirtual();
|
|
|
629 int addPreInvariant();
|
|
|
630 int addPostInvariant();
|
|
|
631 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
632
|
|
|
633 UnitTestDeclaration *isUnitTestDeclaration() { return this; }
|
|
|
634 };
|
|
|
635
|
|
|
636 struct NewDeclaration : FuncDeclaration
|
|
|
637 { Arguments *arguments;
|
|
|
638 int varargs;
|
|
|
639
|
|
|
640 NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs);
|
|
|
641 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
642 void semantic(Scope *sc);
|
|
|
643 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
644 char *kind();
|
|
|
645 int isVirtual();
|
|
|
646 int addPreInvariant();
|
|
|
647 int addPostInvariant();
|
|
|
648
|
|
|
649 NewDeclaration *isNewDeclaration() { return this; }
|
|
|
650 };
|
|
|
651
|
|
|
652
|
|
|
653 struct DeleteDeclaration : FuncDeclaration
|
|
|
654 { Arguments *arguments;
|
|
|
655
|
|
|
656 DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments);
|
|
|
657 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
658 void semantic(Scope *sc);
|
|
|
659 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
660 char *kind();
|
|
|
661 int isDelete();
|
|
|
662 int isVirtual();
|
|
|
663 int addPreInvariant();
|
|
|
664 int addPostInvariant();
|
|
|
665 #ifdef _DH
|
|
|
666 DeleteDeclaration *isDeleteDeclaration() { return this; }
|
|
|
667 #endif
|
|
|
668 };
|
|
|
669
|
|
|
670 #endif /* DMD_DECLARATION_H */
|
