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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
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131 /**************************************************************/
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132
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133 struct TupleDeclaration : Declaration
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134 {
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135 Objects *objects;
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136 int isexp; // 1: expression tuple
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137
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138 TypeTuple *tupletype; // !=NULL if this is a type tuple
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139
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140 TupleDeclaration(Loc loc, Identifier *ident, Objects *objects);
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141 Dsymbol *syntaxCopy(Dsymbol *);
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142 char *kind();
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143 Type *getType();
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144 int needThis();
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145
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146 TupleDeclaration *isTupleDeclaration() { return this; }
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147 };
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148
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149 /**************************************************************/
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150
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151 struct TypedefDeclaration : Declaration
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152 {
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153 Type *basetype;
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154 Initializer *init;
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155 int sem; // 0: semantic() has not been run
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156 // 1: semantic() is in progress
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157 // 2: semantic() has been run
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158 // 3: semantic2() has been run
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159 int inuse; // used to detect typedef cycles
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160
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161 TypedefDeclaration(Loc loc, Identifier *ident, Type *basetype, Initializer *init);
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162 Dsymbol *syntaxCopy(Dsymbol *);
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163 void semantic(Scope *sc);
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164 void semantic2(Scope *sc);
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165 char *mangle();
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166 char *kind();
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167 Type *getType();
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168 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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169 #ifdef _DH
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170 Type *htype;
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171 Type *hbasetype;
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172 #endif
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173
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174 void toDocBuffer(OutBuffer *buf);
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175
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176 void toObjFile(); // compile to .obj file
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177 void toDebug();
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178 int cvMember(unsigned char *p);
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179
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180 TypedefDeclaration *isTypedefDeclaration() { return this; }
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181
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182 Symbol *sinit;
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183 Symbol *toInitializer();
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184 };
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185
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186 /**************************************************************/
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187
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188 struct AliasDeclaration : Declaration
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189 {
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190 Dsymbol *aliassym;
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191 Dsymbol *overnext; // next in overload list
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192 int inSemantic;
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193
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194 AliasDeclaration(Loc loc, Identifier *ident, Type *type);
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195 AliasDeclaration(Loc loc, Identifier *ident, Dsymbol *s);
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196 Dsymbol *syntaxCopy(Dsymbol *);
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197 void semantic(Scope *sc);
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198 int overloadInsert(Dsymbol *s);
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199 char *kind();
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200 Type *getType();
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201 Dsymbol *toAlias();
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202 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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203 #ifdef _DH
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204 Type *htype;
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205 Dsymbol *haliassym;
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206 #endif
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207
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208 void toDocBuffer(OutBuffer *buf);
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209
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210 AliasDeclaration *isAliasDeclaration() { return this; }
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211 };
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212
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213 /**************************************************************/
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214
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215 struct VarDeclaration : Declaration
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216 {
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217 Initializer *init;
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218 unsigned offset;
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219 int noauto; // no auto semantics
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220 int nestedref; // referenced by a lexically nested function
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221 int inuse;
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222 int ctorinit; // it has been initialized in a ctor
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223 int onstack; // 1: it has been allocated on the stack
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224 // 2: on stack, run destructor anyway
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225 int canassign; // it can be assigned to
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226 Dsymbol *aliassym; // if redone as alias to another symbol
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227 Expression *value; // when interpreting, this is the value
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228 // (NULL if value not determinable)
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229
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230 VarDeclaration(Loc loc, Type *t, Identifier *id, Initializer *init);
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231 Dsymbol *syntaxCopy(Dsymbol *);
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232 void semantic(Scope *sc);
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233 void semantic2(Scope *sc);
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234 char *kind();
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235 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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236 #ifdef _DH
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237 Type *htype;
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238 Initializer *hinit;
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239 #endif
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240 int needThis();
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241 int isImportedSymbol();
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242 int isDataseg();
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243 int hasPointers();
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244 Expression *callAutoDtor();
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245 ExpInitializer *getExpInitializer();
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246 void checkCtorConstInit();
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247 void checkNestedReference(Scope *sc, Loc loc);
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248 Dsymbol *toAlias();
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249
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250 Symbol *toSymbol();
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251 void toObjFile(); // compile to .obj file
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252 int cvMember(unsigned char *p);
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253
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254 // Eliminate need for dynamic_cast
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255 VarDeclaration *isVarDeclaration() { return (VarDeclaration *)this; }
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256 };
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257
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258 /**************************************************************/
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259
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260 // This is a shell around a back end symbol
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261
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262 struct SymbolDeclaration : Declaration
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263 {
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264 Symbol *sym;
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265 StructDeclaration *dsym;
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266
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267 SymbolDeclaration(Loc loc, Symbol *s, StructDeclaration *dsym);
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268
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269 Symbol *toSymbol();
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270
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271 // Eliminate need for dynamic_cast
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272 SymbolDeclaration *isSymbolDeclaration() { return (SymbolDeclaration *)this; }
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273 };
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274
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275 struct ClassInfoDeclaration : VarDeclaration
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276 {
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277 ClassDeclaration *cd;
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278
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279 ClassInfoDeclaration(ClassDeclaration *cd);
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280 Dsymbol *syntaxCopy(Dsymbol *);
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281 void semantic(Scope *sc);
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282
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283 void emitComment(Scope *sc);
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284
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285 Symbol *toSymbol();
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286 };
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287
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288 struct ModuleInfoDeclaration : VarDeclaration
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289 {
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290 Module *mod;
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291
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292 ModuleInfoDeclaration(Module *mod);
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293 Dsymbol *syntaxCopy(Dsymbol *);
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294 void semantic(Scope *sc);
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295
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296 void emitComment(Scope *sc);
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297
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298 Symbol *toSymbol();
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299 };
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300
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301 struct TypeInfoDeclaration : VarDeclaration
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302 {
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303 Type *tinfo;
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304
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305 TypeInfoDeclaration(Type *tinfo, int internal);
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306 Dsymbol *syntaxCopy(Dsymbol *);
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307 void semantic(Scope *sc);
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308
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309 void emitComment(Scope *sc);
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310
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311 Symbol *toSymbol();
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312 void toObjFile(); // compile to .obj file
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313 virtual void toDt(dt_t **pdt);
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314
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315 virtual TypeInfoDeclaration* isTypeInfoDeclaration() { return this; }
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316 };
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317
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318 struct TypeInfoStructDeclaration : TypeInfoDeclaration
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319 {
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320 TypeInfoStructDeclaration(Type *tinfo);
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321
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322 void toDt(dt_t **pdt);
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323 };
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324
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325 struct TypeInfoClassDeclaration : TypeInfoDeclaration
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326 {
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327 TypeInfoClassDeclaration(Type *tinfo);
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328
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329 void toDt(dt_t **pdt);
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330 };
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331
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332 struct TypeInfoInterfaceDeclaration : TypeInfoDeclaration
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333 {
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334 TypeInfoInterfaceDeclaration(Type *tinfo);
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335
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336 void toDt(dt_t **pdt);
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337 };
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338
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339 struct TypeInfoTypedefDeclaration : TypeInfoDeclaration
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340 {
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341 TypeInfoTypedefDeclaration(Type *tinfo);
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342
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343 void toDt(dt_t **pdt);
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344 };
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345
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346 struct TypeInfoPointerDeclaration : TypeInfoDeclaration
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347 {
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348 TypeInfoPointerDeclaration(Type *tinfo);
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349
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350 void toDt(dt_t **pdt);
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351 };
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352
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353 struct TypeInfoArrayDeclaration : TypeInfoDeclaration
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354 {
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355 TypeInfoArrayDeclaration(Type *tinfo);
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356
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357 void toDt(dt_t **pdt);
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358 };
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359
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360 struct TypeInfoStaticArrayDeclaration : TypeInfoDeclaration
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361 {
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362 TypeInfoStaticArrayDeclaration(Type *tinfo);
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363
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364 void toDt(dt_t **pdt);
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365 };
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366
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367 struct TypeInfoAssociativeArrayDeclaration : TypeInfoDeclaration
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368 {
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369 TypeInfoAssociativeArrayDeclaration(Type *tinfo);
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370
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371 void toDt(dt_t **pdt);
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372 };
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373
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374 struct TypeInfoEnumDeclaration : TypeInfoDeclaration
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375 {
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376 TypeInfoEnumDeclaration(Type *tinfo);
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377
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378 void toDt(dt_t **pdt);
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379 };
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380
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381 struct TypeInfoFunctionDeclaration : TypeInfoDeclaration
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382 {
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383 TypeInfoFunctionDeclaration(Type *tinfo);
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384
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385 void toDt(dt_t **pdt);
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386 };
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387
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388 struct TypeInfoDelegateDeclaration : TypeInfoDeclaration
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389 {
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390 TypeInfoDelegateDeclaration(Type *tinfo);
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391
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392 void toDt(dt_t **pdt);
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393 };
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394
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395 struct TypeInfoTupleDeclaration : TypeInfoDeclaration
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396 {
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397 TypeInfoTupleDeclaration(Type *tinfo);
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398
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399 void toDt(dt_t **pdt);
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400 };
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401
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402 struct ThisDeclaration : VarDeclaration
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403 {
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404 ThisDeclaration(Type *t);
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405 Dsymbol *syntaxCopy(Dsymbol *);
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406 };
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407
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408 enum ILS
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409 {
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410 ILSuninitialized, // not computed yet
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411 ILSno, // cannot inline
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412 ILSyes, // can inline
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413 };
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414
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415 /**************************************************************/
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416
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417 struct FuncDeclaration : Declaration
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418 {
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419 Array *fthrows; // Array of Type's of exceptions (not used)
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420 Statement *frequire;
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421 Statement *fensure;
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422 Statement *fbody;
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423
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424 Identifier *outId; // identifier for out statement
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425 VarDeclaration *vresult; // variable corresponding to outId
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426 LabelDsymbol *returnLabel; // where the return goes
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427
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428 DsymbolTable *localsymtab; // used to prevent symbols in different
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429 // scopes from having the same name
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430 VarDeclaration *vthis; // 'this' parameter (member and nested)
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431 VarDeclaration *v_arguments; // '_arguments' parameter
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432 #if IN_GCC
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433 VarDeclaration *v_argptr; // '_argptr' variable
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434 #endif
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435 Dsymbols *parameters; // Array of VarDeclaration's for parameters
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436 DsymbolTable *labtab; // statement label symbol table
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437 Declaration *overnext; // next in overload list
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438 Loc endloc; // location of closing curly bracket
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439 int vtblIndex; // for member functions, index into vtbl[]
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440 int naked; // !=0 if naked
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441 int inlineAsm; // !=0 if has inline assembler
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442 ILS inlineStatus;
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443 int inlineNest; // !=0 if nested inline
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444 int cantInterpret; // !=0 if cannot interpret function
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445 int semanticRun; // !=0 if semantic3() had been run
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446 int nestedFrameRef; // !=0 if nested variables referenced frame ptr
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447 ForeachStatement *fes; // if foreach body, this is the foreach
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448 int introducing; // !=0 if 'introducing' function
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449 Type *tintro; // if !=NULL, then this is the type
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450 // of the 'introducing' function
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451 // this one is overriding
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452 int inferRetType; // !=0 if return type is to be inferred
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453 Scope *scope; // !=NULL means context to use
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454
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455 // Things that should really go into Scope
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456 int hasReturnExp; // 1 if there's a return exp; statement
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457 // 2 if there's a throw statement
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458 // 4 if there's an assert(0)
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459 // 8 if there's inline asm
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460
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461 // Support for NRVO (named return value optimization)
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462 int nrvo_can; // !=0 means we can do it
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463 VarDeclaration *nrvo_var; // variable to replace with shidden
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464 Symbol *shidden; // hidden pointer passed to function
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465
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466 FuncDeclaration(Loc loc, Loc endloc, Identifier *id, enum STC storage_class, Type *type);
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467 Dsymbol *syntaxCopy(Dsymbol *);
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468 void semantic(Scope *sc);
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469 void semantic2(Scope *sc);
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470 void semantic3(Scope *sc);
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471 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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472 void bodyToCBuffer(OutBuffer *buf, HdrGenState *hgs);
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473 int overrides(FuncDeclaration *fd);
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474 int overloadInsert(Dsymbol *s);
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475 FuncDeclaration *overloadExactMatch(Type *t);
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476 FuncDeclaration *overloadResolve(Loc loc, Expressions *arguments);
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477 LabelDsymbol *searchLabel(Identifier *ident);
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478 AggregateDeclaration *isThis();
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479 AggregateDeclaration *isMember2();
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480 int getLevel(Loc loc, FuncDeclaration *fd); // lexical nesting level difference
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481 void appendExp(Expression *e);
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482 void appendState(Statement *s);
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483 char *mangle();
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484 int isMain();
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485 int isWinMain();
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486 int isDllMain();
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487 int isExport();
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488 int isImportedSymbol();
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489 int isAbstract();
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490 int isCodeseg();
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491 virtual int isNested();
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492 int needThis();
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493 virtual int isVirtual();
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494 virtual int addPreInvariant();
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495 virtual int addPostInvariant();
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496 Expression *interpret(InterState *istate, Expressions *arguments);
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497 void inlineScan();
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498 int canInline(int hasthis, int hdrscan = 0);
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499 Expression *doInline(InlineScanState *iss, Expression *ethis, Array *arguments);
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500 char *kind();
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501 void toDocBuffer(OutBuffer *buf);
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502
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503 static FuncDeclaration *genCfunc(Type *treturn, char *name);
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504 static FuncDeclaration *genCfunc(Type *treturn, Identifier *id);
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505
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506 Symbol *toSymbol();
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507 Symbol *toThunkSymbol(int offset); // thunk version
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508 void toObjFile(); // compile to .obj file
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509 int cvMember(unsigned char *p);
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510
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511 FuncDeclaration *isFuncDeclaration() { return this; }
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512 };
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513
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514 struct FuncAliasDeclaration : FuncDeclaration
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515 {
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516 FuncDeclaration *funcalias;
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517
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518 FuncAliasDeclaration(FuncDeclaration *funcalias);
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519
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520 FuncAliasDeclaration *isFuncAliasDeclaration() { return this; }
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521 char *kind();
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522 Symbol *toSymbol();
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523 };
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524
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525 struct FuncLiteralDeclaration : FuncDeclaration
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526 {
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527 enum TOK tok; // TOKfunction or TOKdelegate
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528
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529 FuncLiteralDeclaration(Loc loc, Loc endloc, Type *type, enum TOK tok,
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530 ForeachStatement *fes);
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531 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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532 Dsymbol *syntaxCopy(Dsymbol *);
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533 int isNested();
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534
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535 FuncLiteralDeclaration *isFuncLiteralDeclaration() { return this; }
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536 char *kind();
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|
|
537 };
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538
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|
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539 struct CtorDeclaration : FuncDeclaration
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540 { Arguments *arguments;
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541 int varargs;
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542
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543 CtorDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs);
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544 Dsymbol *syntaxCopy(Dsymbol *);
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545 void semantic(Scope *sc);
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546 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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|
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547 char *kind();
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|
548 char *toChars();
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|
|
549 int isVirtual();
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|
550 int addPreInvariant();
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|
|
551 int addPostInvariant();
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|
|
552 void toDocBuffer(OutBuffer *buf);
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553
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554 CtorDeclaration *isCtorDeclaration() { return this; }
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555 };
|
|
|
556
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|
|
557 struct DtorDeclaration : FuncDeclaration
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558 {
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559 DtorDeclaration(Loc loc, Loc endloc);
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560 Dsymbol *syntaxCopy(Dsymbol *);
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561 void semantic(Scope *sc);
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|
562 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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|
563 int isVirtual();
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|
564 int addPreInvariant();
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|
|
565 int addPostInvariant();
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|
|
566 int overloadInsert(Dsymbol *s);
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|
|
567 void emitComment(Scope *sc);
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|
|
568
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|
|
569 DtorDeclaration *isDtorDeclaration() { return this; }
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|
570 };
|
|
|
571
|
|
|
572 struct StaticCtorDeclaration : FuncDeclaration
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|
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573 {
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|
|
574 StaticCtorDeclaration(Loc loc, Loc endloc);
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|
|
575 Dsymbol *syntaxCopy(Dsymbol *);
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|
|
576 void semantic(Scope *sc);
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|
|
577 AggregateDeclaration *isThis();
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|
|
578 int isStaticConstructor();
|
|
|
579 int isVirtual();
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|
|
580 int addPreInvariant();
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|
|
581 int addPostInvariant();
|
|
|
582 void emitComment(Scope *sc);
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|
|
583 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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|
|
584
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|
|
585 StaticCtorDeclaration *isStaticCtorDeclaration() { return this; }
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|
|
586 };
|
|
|
587
|
|
|
588 struct StaticDtorDeclaration : FuncDeclaration
|
|
|
589 {
|
|
|
590 StaticDtorDeclaration(Loc loc, Loc endloc);
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|
|
591 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
592 void semantic(Scope *sc);
|
|
|
593 AggregateDeclaration *isThis();
|
|
|
594 int isStaticDestructor();
|
|
|
595 int isVirtual();
|
|
|
596 int addPreInvariant();
|
|
|
597 int addPostInvariant();
|
|
|
598 void emitComment(Scope *sc);
|
|
|
599 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
600
|
|
|
601 StaticDtorDeclaration *isStaticDtorDeclaration() { return this; }
|
|
|
602 };
|
|
|
603
|
|
|
604 struct InvariantDeclaration : FuncDeclaration
|
|
|
605 {
|
|
|
606 InvariantDeclaration(Loc loc, Loc endloc);
|
|
|
607 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
608 void semantic(Scope *sc);
|
|
|
609 int isVirtual();
|
|
|
610 int addPreInvariant();
|
|
|
611 int addPostInvariant();
|
|
|
612 void emitComment(Scope *sc);
|
|
|
613 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
614
|
|
|
615 InvariantDeclaration *isInvariantDeclaration() { return this; }
|
|
|
616 };
|
|
|
617
|
|
|
618
|
|
|
619 struct UnitTestDeclaration : FuncDeclaration
|
|
|
620 {
|
|
|
621 UnitTestDeclaration(Loc loc, Loc endloc);
|
|
|
622 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
623 void semantic(Scope *sc);
|
|
|
624 AggregateDeclaration *isThis();
|
|
|
625 int isVirtual();
|
|
|
626 int addPreInvariant();
|
|
|
627 int addPostInvariant();
|
|
|
628 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
629
|
|
|
630 UnitTestDeclaration *isUnitTestDeclaration() { return this; }
|
|
|
631 };
|
|
|
632
|
|
|
633 struct NewDeclaration : FuncDeclaration
|
|
|
634 { Arguments *arguments;
|
|
|
635 int varargs;
|
|
|
636
|
|
|
637 NewDeclaration(Loc loc, Loc endloc, Arguments *arguments, int varargs);
|
|
|
638 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
639 void semantic(Scope *sc);
|
|
|
640 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
641 char *kind();
|
|
|
642 int isVirtual();
|
|
|
643 int addPreInvariant();
|
|
|
644 int addPostInvariant();
|
|
|
645
|
|
|
646 NewDeclaration *isNewDeclaration() { return this; }
|
|
|
647 };
|
|
|
648
|
|
|
649
|
|
|
650 struct DeleteDeclaration : FuncDeclaration
|
|
|
651 { Arguments *arguments;
|
|
|
652
|
|
|
653 DeleteDeclaration(Loc loc, Loc endloc, Arguments *arguments);
|
|
|
654 Dsymbol *syntaxCopy(Dsymbol *);
|
|
|
655 void semantic(Scope *sc);
|
|
|
656 void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
657 char *kind();
|
|
|
658 int isDelete();
|
|
|
659 int isVirtual();
|
|
|
660 int addPreInvariant();
|
|
|
661 int addPostInvariant();
|
|
|
662 #ifdef _DH
|
|
|
663 DeleteDeclaration *isDeleteDeclaration() { return this; }
|
|
|
664 #endif
|
|
|
665 };
|
|
|
666
|
|
|
667 #endif /* DMD_DECLARATION_H */
|
