Mercurial > projects > ddmd
annotate dmd/VarDeclaration.d @ 157:b7b61140701d
* added all missing default cases in switch statements
+ Lexer.getDocComment
+ Lexer.combineComments
| author | trass3r |
|---|---|
| date | Thu, 16 Sep 2010 01:34:10 +0200 |
| parents | af1bebfd96a4 |
| children | e3afd1303184 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.VarDeclaration; |
| 2 | |
| 114 | 3 import dmd.common; |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
4 import dmd.Array; |
| 0 | 5 import dmd.Declaration; |
| 6 import dmd.SliceExp; | |
| 7 import dmd.ClassDeclaration; | |
| 8 import dmd.DeleteExp; | |
| 9 import dmd.SymOffExp; | |
| 10 import dmd.DotIdExp; | |
| 11 import dmd.PtrExp; | |
| 12 import dmd.CallExp; | |
| 13 import dmd.DotVarExp; | |
| 14 import dmd.CommaExp; | |
| 15 import dmd.CastExp; | |
| 16 import dmd.WANT; | |
| 17 import dmd.StructDeclaration; | |
|
68
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
18 import dmd.StorageClassDeclaration; |
| 0 | 19 import dmd.DsymbolExp; |
| 20 import dmd.TypeSArray; | |
| 21 import dmd.IntegerExp; | |
| 22 import dmd.VarExp; | |
| 23 import dmd.AssignExp; | |
| 24 import dmd.TypeTypedef; | |
| 25 import dmd.ArrayInitializer; | |
| 26 import dmd.StructInitializer; | |
| 27 import dmd.NewExp; | |
| 28 import dmd.TupleDeclaration; | |
| 29 import dmd.AggregateDeclaration; | |
| 30 import dmd.InterfaceDeclaration; | |
| 31 import dmd.TemplateInstance; | |
| 32 import dmd.Id; | |
| 33 import dmd.Initializer; | |
| 34 import dmd.TypeStruct; | |
| 35 import dmd.TypeTuple; | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
36 import dmd.Parameter; |
| 0 | 37 import dmd.ExpInitializer; |
| 38 import dmd.ArrayTypes; | |
| 39 import dmd.Dsymbol; | |
| 40 import dmd.Expression; | |
| 41 import dmd.Loc; | |
| 42 import dmd.STC; | |
| 43 import dmd.TOK; | |
| 44 import dmd.TupleExp; | |
| 45 import dmd.Global; | |
|
22
fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
parents:
16
diff
changeset
|
46 import dmd.Module; |
| 0 | 47 import dmd.FuncDeclaration; |
| 48 import dmd.Type; | |
| 49 import dmd.TY; | |
| 50 import dmd.LINK; | |
| 51 import dmd.Scope; | |
| 52 import dmd.Identifier; | |
| 53 import dmd.OutBuffer; | |
| 54 import dmd.HdrGenState; | |
| 55 import dmd.PROT; | |
| 73 | 56 import dmd.expression.Util; |
| 0 | 57 |
| 58 import dmd.backend.Symbol; | |
| 59 import dmd.backend.TYM; | |
| 60 import dmd.backend.FL; | |
| 61 import dmd.backend.DT; | |
| 62 import dmd.backend.mTY; | |
| 63 import dmd.backend.SC; | |
| 64 import dmd.backend.mTYman; | |
| 65 import dmd.backend.TYPE; | |
| 66 import dmd.backend.Util; | |
| 67 import dmd.backend.LIST; | |
| 68 | |
| 69 import std.stdio : writef; | |
| 70 import std.string : toStringz; | |
| 71 | |
| 72 class VarDeclaration : Declaration | |
| 73 { | |
| 74 Initializer init; | |
| 75 uint offset; | |
| 76 bool noauto; // no auto semantics | |
| 77 version (DMDV2) { | |
| 98 | 78 FuncDeclarations nestedrefs; // referenced by these lexically nested functions |
| 79 bool isargptr = false; // if parameter that _argptr points to | |
| 0 | 80 } else { |
| 81 int nestedref; // referenced by a lexically nested function | |
| 82 } | |
| 83 int ctorinit; // it has been initialized in a ctor | |
| 84 int onstack; // 1: it has been allocated on the stack | |
| 85 // 2: on stack, run destructor anyway | |
| 86 int canassign; // it can be assigned to | |
| 87 Dsymbol aliassym; // if redone as alias to another symbol | |
| 88 Expression value; // when interpreting, this is the value | |
| 89 // (null if value not determinable) | |
| 90 version (DMDV2) { | |
| 91 VarDeclaration rundtor; // if !null, rundtor is tested at runtime to see | |
| 92 // if the destructor should be run. Used to prevent | |
| 93 // dtor calls on postblitted vars | |
| 94 } | |
| 95 | |
| 96 this(Loc loc, Type type, Identifier id, Initializer init) | |
| 97 { | |
| 98 super(id); | |
| 99 | |
| 98 | 100 debug |
| 101 { | |
| 0 | 102 if (!type && !init) |
| 103 { | |
| 104 writef("VarDeclaration('%s')\n", id.toChars()); | |
| 105 //*(char*)0=0; | |
| 106 } | |
| 107 } | |
| 108 assert(type || init); | |
| 109 this.type = type; | |
| 110 this.init = init; | |
| 98 | 111 version(_DH) |
| 112 { | |
| 113 this.htype = null; | |
| 114 this.hinit = null; | |
| 115 } | |
| 0 | 116 this.loc = loc; |
| 117 | |
| 98 | 118 /* TODO: |
| 119 #if DMDV1 | |
| 120 nestedref = 0; | |
| 121 #endif | |
| 122 ctorinit = 0; | |
| 123 aliassym = NULL; | |
| 124 onstack = 0; | |
| 125 canassign = 0; | |
| 126 value = NULL; | |
| 127 rundtor = NULL; | |
| 128 */ | |
| 0 | 129 nestedrefs = new FuncDeclarations(); |
| 130 } | |
| 131 | |
| 72 | 132 override Dsymbol syntaxCopy(Dsymbol s) |
| 0 | 133 { |
| 134 //printf("VarDeclaration.syntaxCopy(%s)\n", toChars()); | |
| 135 | |
| 136 VarDeclaration sv; | |
| 137 if (s) | |
| 138 { | |
| 139 sv = cast(VarDeclaration)s; | |
| 140 } | |
| 141 else | |
| 142 { | |
| 143 Initializer init = null; | |
| 144 if (this.init) | |
| 145 { | |
| 146 init = this.init.syntaxCopy(); | |
| 147 //init.isExpInitializer().exp.print(); | |
| 148 //init.isExpInitializer().exp.dump(0); | |
| 149 } | |
| 150 | |
| 151 sv = new VarDeclaration(loc, type ? type.syntaxCopy() : null, ident, init); | |
| 152 sv.storage_class = storage_class; | |
| 153 } | |
| 154 | |
| 155 version (_DH) { | |
| 156 // Syntax copy for header file | |
| 157 if (!htype) // Don't overwrite original | |
| 158 { | |
| 159 if (type) // Make copy for both old and new instances | |
| 160 { htype = type.syntaxCopy(); | |
| 161 sv.htype = type.syntaxCopy(); | |
| 162 } | |
| 163 } | |
| 164 else // Make copy of original for new instance | |
| 165 sv.htype = htype.syntaxCopy(); | |
| 166 if (!hinit) | |
| 167 { | |
| 168 if (init) | |
| 169 { | |
| 170 hinit = init.syntaxCopy(); | |
| 171 sv.hinit = init.syntaxCopy(); | |
| 172 } | |
| 173 } | |
| 174 else | |
| 175 sv.hinit = hinit.syntaxCopy(); | |
| 176 } | |
| 177 return sv; | |
| 178 } | |
| 179 | |
| 72 | 180 override void semantic(Scope sc) |
| 0 | 181 { |
| 182 static if (false) { | |
| 183 printf("VarDeclaration.semantic('%s', parent = '%s')\n", toChars(), sc.parent.toChars()); | |
| 184 printf(" type = %s\n", type ? type.toChars() : "null"); | |
| 185 printf(" stc = x%x\n", sc.stc); | |
| 186 printf(" storage_class = x%x\n", storage_class); | |
| 187 printf("linkage = %d\n", sc.linkage); | |
| 188 //if (strcmp(toChars(), "mul") == 0) halt(); | |
| 189 } | |
| 190 | |
| 191 storage_class |= sc.stc; | |
| 192 if (storage_class & STC.STCextern && init) | |
| 193 error("extern symbols cannot have initializers"); | |
| 194 | |
| 195 /* If auto type inference, do the inference | |
| 196 */ | |
| 197 int inferred = 0; | |
| 198 if (!type) | |
|
157
b7b61140701d
* added all missing default cases in switch statements
trass3r
parents:
135
diff
changeset
|
199 { |
| 0 | 200 inuse++; |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
201 |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
202 ArrayInitializer ai = init.isArrayInitializer(); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
203 if (ai) |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
204 { |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
205 Expression e; |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
206 if (ai.isAssociativeArray()) |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
207 e = ai.toAssocArrayLiteral(); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
208 else |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
209 e = init.toExpression(); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
210 init = new ExpInitializer(e.loc, e); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
211 type = init.inferType(sc); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
212 if (type.ty == TY.Tsarray) |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
213 type = type.nextOf().arrayOf(); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
214 } |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
215 else |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
216 type = init.inferType(sc); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
217 |
| 0 | 218 inuse--; |
| 219 inferred = 1; | |
| 220 | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
221 if (init.isArrayInitializer() && type.toBasetype().ty == TY.Tsarray) |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
222 { // Prefer array literals to give a T[] type rather than a T[dim] |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
223 type = type.toBasetype().nextOf().arrayOf(); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
224 } |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
225 |
| 0 | 226 /* This is a kludge to support the existing syntax for RAII |
| 227 * declarations. | |
| 228 */ | |
| 229 storage_class &= ~STC.STCauto; | |
| 230 originalType = type; | |
| 231 } | |
| 232 else | |
| 233 { | |
| 234 if (!originalType) | |
| 235 originalType = type; | |
| 236 | |
| 237 type = type.semantic(loc, sc); | |
| 238 } | |
| 239 //printf(" semantic type = %s\n", type ? type.toChars() : "null"); | |
| 240 | |
| 241 type.checkDeprecated(loc, sc); | |
| 242 linkage = sc.linkage; | |
| 243 this.parent = sc.parent; | |
| 244 //printf("this = %p, parent = %p, '%s'\n", this, parent, parent.toChars()); | |
| 245 protection = sc.protection; | |
| 246 //printf("sc.stc = %x\n", sc.stc); | |
| 247 //printf("storage_class = x%x\n", storage_class); | |
| 248 | |
| 249 version (DMDV2) { | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
250 static if (true) { |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
251 if (storage_class & STC.STCgshared && sc.func && sc.func.isSafe()) |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
252 { |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
253 error("__gshared not allowed in safe functions; use shared"); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
254 } |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
255 } else { |
| 0 | 256 if (storage_class & STC.STCgshared && global.params.safe && !sc.module_.safe) |
| 257 { | |
| 258 error("__gshared not allowed in safe mode; use shared"); | |
| 259 } | |
| 260 } | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
261 } |
| 0 | 262 |
| 263 Dsymbol parent = toParent(); | |
| 264 FuncDeclaration fd = parent.isFuncDeclaration(); | |
| 265 | |
| 266 Type tb = type.toBasetype(); | |
| 267 if (tb.ty == TY.Tvoid && !(storage_class & STC.STClazy)) | |
| 268 { error("voids have no value"); | |
| 269 type = Type.terror; | |
| 270 tb = type; | |
| 271 } | |
| 272 if (tb.ty == TY.Tfunction) | |
| 273 { error("cannot be declared to be a function"); | |
| 274 type = Type.terror; | |
| 275 tb = type; | |
| 276 } | |
| 277 if (tb.ty == TY.Tstruct) | |
| 278 { TypeStruct ts = cast(TypeStruct)tb; | |
| 279 | |
| 280 if (!ts.sym.members) | |
| 281 { | |
| 282 error("no definition of struct %s", ts.toChars()); | |
| 283 } | |
| 284 } | |
| 285 | |
| 286 if (tb.ty == TY.Ttuple) | |
| 287 { /* Instead, declare variables for each of the tuple elements | |
| 288 * and add those. | |
| 289 */ | |
| 290 TypeTuple tt = cast(TypeTuple)tb; | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
291 size_t nelems = Parameter.dim(tt.arguments); |
| 0 | 292 Objects exps = new Objects(); |
| 293 exps.setDim(nelems); | |
| 294 Expression ie = init ? init.toExpression() : null; | |
| 295 | |
| 296 for (size_t i = 0; i < nelems; i++) | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
297 { auto arg = Parameter.getNth(tt.arguments, i); |
| 0 | 298 |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
299 auto buf = new OutBuffer(); |
| 53 | 300 ///buf.printf("_%s_field_%zu", ident.toChars(), i); |
| 301 buf.printf("_%s_field_%s", ident.toChars(), i); | |
| 0 | 302 buf.writeByte(0); |
| 303 string name = buf.extractString(); | |
| 304 Identifier id = new Identifier(name, TOK.TOKidentifier); | |
| 305 | |
| 306 Expression einit = ie; | |
| 307 if (ie && ie.op == TOK.TOKtuple) | |
|
113
3482c73a991b
More cleanup for arrays
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
110
diff
changeset
|
308 { einit = (cast(TupleExp)ie).exps[i]; |
| 0 | 309 } |
| 310 Initializer ti = init; | |
| 311 if (einit) | |
| 312 { ti = new ExpInitializer(einit.loc, einit); | |
| 313 } | |
| 314 | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
315 auto v = new VarDeclaration(loc, arg.type, id, ti); |
| 0 | 316 //printf("declaring field %s of type %s\n", v.toChars(), v.type.toChars()); |
| 317 v.semantic(sc); | |
| 318 | |
| 319 if (sc.scopesym) | |
| 320 { //printf("adding %s to %s\n", v.toChars(), sc.scopesym.toChars()); | |
| 321 if (sc.scopesym.members) | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
322 sc.scopesym.members.push(v); |
| 0 | 323 } |
| 324 | |
|
94
3a0b150c9841
Objects -> Vector!Object iteration 1
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
88
diff
changeset
|
325 auto e = new DsymbolExp(loc, v); |
|
3a0b150c9841
Objects -> Vector!Object iteration 1
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
88
diff
changeset
|
326 exps[i] = e; |
| 0 | 327 } |
|
94
3a0b150c9841
Objects -> Vector!Object iteration 1
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
88
diff
changeset
|
328 auto v2 = new TupleDeclaration(loc, ident, exps); |
| 0 | 329 v2.isexp = 1; |
| 330 aliassym = v2; | |
| 331 return; | |
| 332 } | |
| 333 | |
| 334 Lagain: | |
| 335 /* Storage class can modify the type | |
| 336 */ | |
| 337 type = type.addStorageClass(storage_class); | |
| 338 | |
| 339 /* Adjust storage class to reflect type | |
| 340 */ | |
| 341 if (type.isConst()) | |
| 342 { storage_class |= STC.STCconst; | |
| 343 if (type.isShared()) | |
| 344 storage_class |= STC.STCshared; | |
| 345 } | |
| 135 | 346 else if (type.isImmutable()) |
| 0 | 347 storage_class |= STC.STCimmutable; |
| 348 else if (type.isShared()) | |
| 349 storage_class |= STC.STCshared; | |
| 135 | 350 else if (type.isWild()) |
| 351 storage_class |= STC.STCwild; | |
| 0 | 352 |
| 353 if (isSynchronized()) | |
| 354 { | |
| 355 error("variable %s cannot be synchronized", toChars()); | |
| 356 } | |
| 357 else if (isOverride()) | |
| 358 { | |
| 359 error("override cannot be applied to variable"); | |
| 360 } | |
| 361 else if (isAbstract()) | |
| 362 { | |
| 363 error("abstract cannot be applied to variable"); | |
| 364 } | |
| 365 else if (storage_class & STC.STCfinal) | |
| 366 { | |
| 367 error("final cannot be applied to variable"); | |
| 368 } | |
| 369 | |
| 370 if (storage_class & (STC.STCstatic | STC.STCextern | STC.STCmanifest | STC.STCtemplateparameter | STC.STCtls | STC.STCgshared)) | |
| 371 { | |
| 372 } | |
| 373 else | |
| 374 { | |
| 375 AggregateDeclaration aad = sc.anonAgg; | |
| 376 if (!aad) | |
| 377 aad = parent.isAggregateDeclaration(); | |
| 378 if (aad) | |
| 379 { | |
| 380 ///version (DMDV2) { | |
| 381 assert(!(storage_class & (STC.STCextern | STC.STCstatic | STC.STCtls | STC.STCgshared))); | |
| 382 | |
| 383 if (storage_class & (STC.STCconst | STC.STCimmutable) && init) | |
| 384 { | |
| 385 if (!type.toBasetype().isTypeBasic()) | |
| 386 storage_class |= STC.STCstatic; | |
| 387 } | |
| 388 else | |
| 389 ///} | |
| 390 aad.addField(sc, this); | |
| 391 } | |
| 392 | |
| 393 InterfaceDeclaration id = parent.isInterfaceDeclaration(); | |
| 394 if (id) | |
| 395 { | |
| 396 error("field not allowed in interface"); | |
| 397 } | |
| 398 | |
| 399 /* Templates cannot add fields to aggregates | |
| 400 */ | |
| 401 TemplateInstance ti = parent.isTemplateInstance(); | |
| 402 if (ti) | |
| 403 { | |
| 404 // Take care of nested templates | |
| 405 while (1) | |
| 406 { | |
| 407 TemplateInstance ti2 = ti.tempdecl.parent.isTemplateInstance(); | |
| 408 if (!ti2) | |
| 409 break; | |
| 410 ti = ti2; | |
| 411 } | |
| 412 | |
| 413 // If it's a member template | |
| 414 AggregateDeclaration ad = ti.tempdecl.isMember(); | |
| 415 if (ad && storage_class != STC.STCundefined) | |
| 416 { | |
| 417 error("cannot use template to add field to aggregate '%s'", ad.toChars()); | |
| 418 } | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 version (DMDV2) { | |
| 423 if ((storage_class & (STC.STCref | STC.STCparameter | STC.STCforeach)) == STC.STCref && ident != Id.This) | |
| 424 { | |
| 425 error("only parameters or foreach declarations can be ref"); | |
| 426 } | |
| 135 | 427 |
| 428 if ((storage_class & (STCstatic | STCextern | STCtls | STCgshared | STCmanifest) || | |
| 429 isDataseg()) && | |
| 430 type.hasWild()) | |
| 431 { | |
| 432 error("only fields, parameters or stack based variables can be inout"); | |
| 433 } | |
| 0 | 434 } |
| 435 | |
| 436 if (type.isauto() && !noauto) | |
| 437 { | |
| 438 if (storage_class & (STC.STCfield | STC.STCout | STC.STCref | STC.STCstatic | STC.STCmanifest | STC.STCtls | STC.STCgshared) || !fd) | |
| 439 { | |
| 440 error("globals, statics, fields, manifest constants, ref and out parameters cannot be scope"); | |
| 441 } | |
| 442 | |
| 443 if (!(storage_class & (STC.STCauto | STC.STCscope))) | |
| 444 { | |
| 445 if (!(storage_class & STC.STCparameter) && ident != Id.withSym) | |
| 446 error("reference to scope class must be scope"); | |
| 447 } | |
| 448 } | |
| 449 | |
| 135 | 450 if ((isConst() || isImmutable()) && !init && !fd) |
| 0 | 451 { |
| 452 // Initialize by constructor only | |
| 453 storage_class |= STC.STCctorinit; | |
| 454 } | |
| 455 | |
| 456 if (init) | |
| 457 storage_class |= STC.STCinit; // remember we had an explicit initializer | |
| 458 else if (storage_class & STC.STCmanifest) | |
| 459 error("manifest constants must have initializers"); | |
| 460 | |
| 461 TOK op = TOK.TOKconstruct; | |
| 462 if (!init && !sc.inunion && !isStatic() && fd && | |
| 463 (!(storage_class & (STC.STCfield | STC.STCin | STC.STCforeach | STC.STCparameter)) || (storage_class & STC.STCout)) && | |
| 464 type.size() != 0) | |
| 465 { | |
| 466 // Provide a default initializer | |
| 467 //printf("Providing default initializer for '%s'\n", toChars()); | |
| 468 if (type.ty == TY.Tstruct && | |
| 469 (cast(TypeStruct)type).sym.zeroInit) | |
| 470 { /* If a struct is all zeros, as a special case | |
| 471 * set it's initializer to the integer 0. | |
| 472 * In AssignExp.toElem(), we check for this and issue | |
| 473 * a memset() to initialize the struct. | |
| 474 * Must do same check in interpreter. | |
| 475 */ | |
| 476 Expression e = new IntegerExp(loc, 0, Type.tint32); | |
| 477 Expression e1; | |
| 478 e1 = new VarExp(loc, this); | |
| 479 e = new AssignExp(loc, e1, e); | |
| 480 e.op = TOK.TOKconstruct; | |
| 481 e.type = e1.type; // don't type check this, it would fail | |
| 482 init = new ExpInitializer(loc, e); | |
| 483 return; | |
| 484 } | |
| 485 else if (type.ty == TY.Ttypedef) | |
| 486 { TypeTypedef td = cast(TypeTypedef)type; | |
| 487 if (td.sym.init) | |
| 488 { init = td.sym.init; | |
| 489 ExpInitializer ie = init.isExpInitializer(); | |
| 490 if (ie) | |
| 491 // Make copy so we can modify it | |
| 492 init = new ExpInitializer(ie.loc, ie.exp); | |
| 493 } | |
| 494 else | |
| 495 init = getExpInitializer(); | |
| 496 } | |
| 497 else | |
| 498 { | |
| 499 init = getExpInitializer(); | |
| 500 } | |
| 501 // Default initializer is always a blit | |
| 502 op = TOK.TOKblit; | |
| 503 } | |
| 504 | |
| 505 if (init) | |
| 506 { | |
| 507 sc = sc.push(); | |
| 508 sc.stc &= ~(STC.STC_TYPECTOR | STC.STCpure | STC.STCnothrow | STC.STCref); | |
| 509 | |
| 510 ArrayInitializer ai = init.isArrayInitializer(); | |
| 511 if (ai && tb.ty == TY.Taarray) | |
| 512 { | |
|
130
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
513 Expression e = ai.toAssocArrayLiteral(); |
|
60bb0fe4563e
dmdfe 2.037 first main iteration
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
114
diff
changeset
|
514 init = new ExpInitializer(e.loc, e); |
| 0 | 515 } |
| 516 | |
| 517 StructInitializer si = init.isStructInitializer(); | |
| 518 ExpInitializer ei = init.isExpInitializer(); | |
| 519 | |
| 520 // See if initializer is a NewExp that can be allocated on the stack | |
| 521 if (ei && isScope() && ei.exp.op == TOK.TOKnew) | |
| 522 { NewExp ne = cast(NewExp)ei.exp; | |
| 523 if (!(ne.newargs && ne.newargs.dim)) | |
| 524 { ne.onstack = 1; | |
| 525 onstack = 1; | |
| 526 if (type.isBaseOf(ne.newtype.semantic(loc, sc), null)) | |
| 527 onstack = 2; | |
| 528 } | |
| 529 } | |
| 530 | |
| 531 // If inside function, there is no semantic3() call | |
| 532 if (sc.func) | |
| 533 { | |
| 534 // If local variable, use AssignExp to handle all the various | |
| 535 // possibilities. | |
| 536 if (fd && | |
| 537 !(storage_class & (STC.STCmanifest | STC.STCstatic | STC.STCtls | STC.STCgshared | STC.STCextern)) && | |
| 538 !init.isVoidInitializer()) | |
| 539 { | |
| 540 //printf("fd = '%s', var = '%s'\n", fd.toChars(), toChars()); | |
| 541 if (!ei) | |
| 542 { | |
| 543 Expression e = init.toExpression(); | |
| 544 if (!e) | |
| 545 { | |
| 546 init = init.semantic(sc, type); | |
| 547 e = init.toExpression(); | |
| 548 if (!e) | |
| 549 { error("is not a static and cannot have static initializer"); | |
| 550 return; | |
| 551 } | |
| 552 } | |
| 553 ei = new ExpInitializer(init.loc, e); | |
| 554 init = ei; | |
| 555 } | |
| 556 | |
| 557 Expression e1 = new VarExp(loc, this); | |
| 558 | |
| 559 Type t = type.toBasetype(); | |
| 560 if (t.ty == TY.Tsarray && !(storage_class & (STC.STCref | STC.STCout))) | |
| 561 { | |
| 562 ei.exp = ei.exp.semantic(sc); | |
| 563 if (!ei.exp.implicitConvTo(type)) | |
| 564 { | |
| 565 int dim = cast(int)(cast(TypeSArray)t).dim.toInteger(); /// | |
| 566 // If multidimensional static array, treat as one large array | |
| 567 while (1) | |
| 568 { | |
| 569 t = t.nextOf().toBasetype(); | |
| 570 if (t.ty != TY.Tsarray) | |
| 571 break; | |
| 572 dim *= (cast(TypeSArray)t).dim.toInteger(); | |
| 573 e1.type = new TypeSArray(t.nextOf(), new IntegerExp(Loc(0), dim, Type.tindex)); | |
| 574 } | |
| 575 } | |
| 576 e1 = new SliceExp(loc, e1, null, null); | |
| 577 } | |
| 578 else if (t.ty == TY.Tstruct) | |
| 579 { | |
| 580 ei.exp = ei.exp.semantic(sc); | |
| 98 | 581 ei.exp = resolveProperties(sc, ei.exp); |
| 582 StructDeclaration sd = (cast(TypeStruct)t).sym; | |
| 583 version (DMDV2) | |
| 584 { | |
| 0 | 585 /* Look to see if initializer is a call to the constructor |
| 586 */ | |
| 587 if (sd.ctor && // there are constructors | |
| 588 ei.exp.type.ty == TY.Tstruct && // rvalue is the same struct | |
| 589 (cast(TypeStruct)ei.exp.type).sym == sd && | |
| 590 ei.exp.op == TOK.TOKstar) | |
| 591 { | |
| 592 /* Look for form of constructor call which is: | |
| 593 * *__ctmp.ctor(arguments...) | |
| 594 */ | |
| 595 PtrExp pe = cast(PtrExp)ei.exp; | |
| 596 if (pe.e1.op == TOK.TOKcall) | |
| 597 { CallExp ce = cast(CallExp)pe.e1; | |
| 598 if (ce.e1.op == TOK.TOKdotvar) | |
| 599 { DotVarExp dve = cast(DotVarExp)ce.e1; | |
| 600 if (dve.var.isCtorDeclaration()) | |
| 601 { /* It's a constructor call, currently constructing | |
| 602 * a temporary __ctmp. | |
| 603 */ | |
| 604 /* Before calling the constructor, initialize | |
| 605 * variable with a bit copy of the default | |
| 606 * initializer | |
| 607 */ | |
| 608 Expression e = new AssignExp(loc, new VarExp(loc, this), t.defaultInit(loc)); | |
| 609 e.op = TOK.TOKblit; | |
| 610 e.type = t; | |
| 611 ei.exp = new CommaExp(loc, e, ei.exp); | |
| 612 | |
| 613 /* Replace __ctmp being constructed with e1 | |
| 614 */ | |
| 615 dve.e1 = e1; | |
| 616 return; | |
| 617 } | |
| 618 } | |
| 619 } | |
| 620 } | |
| 621 } | |
| 622 if (!ei.exp.implicitConvTo(type)) | |
| 73 | 623 { |
| 103 | 624 Type ti = ei.exp.type.toBasetype(); |
| 98 | 625 // Look for constructor first |
| 626 if (sd.ctor && | |
| 627 /* Initializing with the same type is done differently | |
| 628 */ | |
| 629 !(ti.ty == Tstruct && t.toDsymbol(sc) == ti.toDsymbol(sc))) | |
| 630 { | |
| 631 // Rewrite as e1.ctor(arguments) | |
| 632 Expression ector = new DotIdExp(loc, e1, Id.ctor); | |
| 633 ei.exp = new CallExp(loc, ector, ei.exp); | |
| 634 } | |
| 635 else | |
| 73 | 636 /* Look for opCall |
| 637 * See bugzilla 2702 for more discussion | |
| 638 */ | |
| 98 | 639 |
| 73 | 640 // Don't cast away invariant or mutability in initializer |
| 641 if (search_function(sd, Id.call) && | |
| 642 /* Initializing with the same type is done differently | |
| 643 */ | |
| 644 !(ti.ty == Tstruct && t.toDsymbol(sc) == ti.toDsymbol(sc))) | |
| 645 { // Rewrite as e1.call(arguments) | |
| 646 Expression eCall = new DotIdExp(loc, e1, Id.call); | |
| 647 ei.exp = new CallExp(loc, eCall, ei.exp); | |
| 648 } | |
| 0 | 649 } |
| 650 } | |
| 651 ei.exp = new AssignExp(loc, e1, ei.exp); | |
| 652 ei.exp.op = op; | |
| 653 canassign++; | |
| 654 ei.exp = ei.exp.semantic(sc); | |
| 655 canassign--; | |
| 656 ei.exp.optimize(WANT.WANTvalue); | |
| 657 } | |
| 658 else | |
| 659 { | |
| 660 init = init.semantic(sc, type); | |
| 661 } | |
| 662 } | |
| 663 else if (storage_class & (STC.STCconst | STC.STCimmutable | STC.STCmanifest) || | |
| 135 | 664 type.isConst() || type.isImmutable() || |
| 98 | 665 parent.isAggregateDeclaration()) |
| 0 | 666 { |
| 667 /* Because we may need the results of a const declaration in a | |
| 668 * subsequent type, such as an array dimension, before semantic2() | |
| 669 * gets ordinarily run, try to run semantic2() now. | |
| 670 * Ignore failure. | |
| 671 */ | |
| 672 | |
| 673 if (!global.errors && !inferred) | |
| 674 { | |
| 675 uint errors = global.errors; | |
| 676 global.gag++; | |
| 677 //printf("+gag\n"); | |
| 678 Expression e; | |
| 679 Initializer i2 = init; | |
| 680 inuse++; | |
| 681 if (ei) | |
| 682 { | |
| 683 e = ei.exp.syntaxCopy(); | |
| 684 e = e.semantic(sc); | |
| 685 e = e.implicitCastTo(sc, type); | |
| 686 } | |
| 687 else if (si || ai) | |
| 688 { i2 = init.syntaxCopy(); | |
| 689 i2 = i2.semantic(sc, type); | |
| 690 } | |
| 691 inuse--; | |
| 692 global.gag--; | |
| 693 //printf("-gag\n"); | |
| 694 if (errors != global.errors) // if errors happened | |
| 695 { | |
| 696 if (global.gag == 0) | |
| 697 global.errors = errors; // act as if nothing happened | |
| 698 version (DMDV2) { | |
| 699 /* Save scope for later use, to try again | |
| 700 */ | |
|
87
b17640f0e4e8
Fixed a bug with a Scope.this(Scope enclosing) being called instead of Scope.clone() method (as a copy ctor replacement)
korDen
parents:
77
diff
changeset
|
701 scope_ = sc.clone(); |
| 0 | 702 scope_.setNoFree(); |
| 703 } | |
| 704 } | |
| 705 else if (ei) | |
| 706 { | |
| 707 if (isDataseg()) | |
| 708 /* static const/invariant does CTFE | |
| 709 */ | |
| 710 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 711 else | |
| 712 e = e.optimize(WANT.WANTvalue); | |
| 713 if (e.op == TOK.TOKint64 || e.op == TOK.TOKstring || e.op == TOK.TOKfloat64) | |
| 714 { | |
| 715 ei.exp = e; // no errors, keep result | |
| 716 } | |
| 717 ///version (DMDV2) { | |
| 718 else | |
| 719 { | |
| 720 /* Save scope for later use, to try again | |
| 721 */ | |
|
87
b17640f0e4e8
Fixed a bug with a Scope.this(Scope enclosing) being called instead of Scope.clone() method (as a copy ctor replacement)
korDen
parents:
77
diff
changeset
|
722 scope_ = sc.clone(); |
| 0 | 723 scope_.setNoFree(); |
| 724 } | |
| 725 ///} | |
| 726 } | |
| 727 else | |
| 728 init = i2; // no errors, keep result | |
| 729 } | |
| 730 } | |
| 731 sc = sc.pop(); | |
| 732 } | |
| 733 } | |
| 734 | |
| 72 | 735 override void semantic2(Scope sc) |
| 0 | 736 { |
| 737 //printf("VarDeclaration.semantic2('%s')\n", toChars()); | |
| 738 if (init && !toParent().isFuncDeclaration()) | |
| 739 { | |
| 740 inuse++; | |
| 741 static if (false) { | |
| 742 ExpInitializer ei = init.isExpInitializer(); | |
| 743 if (ei) | |
| 744 { | |
| 745 ei.exp.dump(0); | |
| 746 printf("type = %p\n", ei.exp.type); | |
| 747 } | |
| 748 } | |
| 749 init = init.semantic(sc, type); | |
| 750 inuse--; | |
| 751 } | |
| 752 } | |
| 753 | |
| 72 | 754 override string kind() |
| 0 | 755 { |
| 756 return "variable"; | |
| 757 } | |
| 758 | |
| 72 | 759 override void toCBuffer(OutBuffer buf, HdrGenState* hgs) |
| 0 | 760 { |
|
68
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
761 StorageClassDeclaration.stcToCBuffer(buf, storage_class); |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
762 |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
763 /* If changing, be sure and fix CompoundDeclarationStatement.toCBuffer() |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
764 * too. |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
765 */ |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
766 if (type) |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
767 type.toCBuffer(buf, ident, hgs); |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
768 else |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
769 buf.writestring(ident.toChars()); |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
770 if (init) |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
771 { |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
772 buf.writestring(" = "); |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
773 ///version (DMDV2) { |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
774 ExpInitializer ie = init.isExpInitializer(); |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
775 if (ie && (ie.exp.op == TOKconstruct || ie.exp.op == TOKblit)) |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
776 (cast(AssignExp)ie.exp).e2.toCBuffer(buf, hgs); |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
777 else |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
778 ///} |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
779 init.toCBuffer(buf, hgs); |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
780 } |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
781 buf.writeByte(';'); |
|
ee3a9f34dc48
final bits of codegen implementation to compile Phobos
korDen
parents:
53
diff
changeset
|
782 buf.writenl(); |
| 0 | 783 } |
| 784 | |
| 785 version (_DH) { | |
| 786 Type htype; | |
| 787 Initializer hinit; | |
| 788 } | |
| 72 | 789 override bool needThis() |
| 0 | 790 { |
| 791 //printf("VarDeclaration.needThis(%s, x%x)\n", toChars(), storage_class); | |
| 792 return (storage_class & STC.STCfield) != 0; | |
| 793 } | |
| 794 | |
| 72 | 795 override bool isImportedSymbol() |
| 0 | 796 { |
| 797 if (protection == PROT.PROTexport && !init && (storage_class & STC.STCstatic || parent.isModule())) | |
| 798 return true; | |
| 799 | |
| 800 return false; | |
| 801 } | |
| 802 | |
| 72 | 803 override bool isDataseg() |
| 0 | 804 { |
| 805 static if (false) { | |
| 806 printf("VarDeclaration.isDataseg(%p, '%s')\n", this, toChars()); | |
| 135 | 807 printf("%llx, isModule: %p, isTemplateInstance: %p\n", storage_class & (STC.STCstatic | STC.STCconst), parent.isModule(), parent.isTemplateInstance()); |
| 0 | 808 printf("parent = '%s'\n", parent.toChars()); |
| 809 } | |
| 810 if (storage_class & STC.STCmanifest) | |
| 811 return false; | |
| 812 | |
| 813 Dsymbol parent = this.toParent(); | |
| 814 if (!parent && !(storage_class & STC.STCstatic)) | |
| 815 { | |
| 816 error("forward referenced"); | |
| 817 type = Type.terror; | |
| 818 return false; | |
| 819 } | |
| 820 | |
| 821 return canTakeAddressOf() && (storage_class & (STC.STCstatic | STC.STCextern | STC.STCtls | STC.STCgshared) || toParent().isModule() || toParent().isTemplateInstance()); | |
| 822 } | |
| 823 | |
| 72 | 824 override bool isThreadlocal() |
| 0 | 825 { |
| 826 //printf("VarDeclaration.isThreadlocal(%p, '%s')\n", this, toChars()); | |
| 827 static if (false) { /// || TARGET_OSX | |
| 828 /* To be thread-local, must use the __thread storage class. | |
| 829 * BUG: OSX doesn't support thread local yet. | |
| 830 */ | |
| 831 return isDataseg() && (storage_class & (STC.STCtls | STC.STCconst | STC.STCimmutable | STC.STCshared | STC.STCgshared)) == STC.STCtls; | |
| 832 } else { | |
| 833 /* Data defaults to being thread-local. It is not thread-local | |
| 834 * if it is immutable, const or shared. | |
| 835 */ | |
| 836 bool i = isDataseg() && !(storage_class & (STC.STCimmutable | STC.STCconst | STC.STCshared | STC.STCgshared)); | |
| 837 //printf("\treturn %d\n", i); | |
| 838 return i; | |
| 839 } | |
| 840 } | |
| 841 | |
| 135 | 842 /******************************************** |
| 843 * Can variable be read and written by CTFE? | |
| 844 */ | |
| 845 | |
| 846 int isCTFE() | |
| 847 { | |
| 848 return (storage_class & STCctfe) || !isDataseg(); | |
| 849 } | |
| 850 | |
| 72 | 851 override bool hasPointers() |
| 0 | 852 { |
| 853 //printf("VarDeclaration.hasPointers() %s, ty = %d\n", toChars(), type.ty); | |
| 854 return (!isDataseg() && type.hasPointers()); | |
| 855 } | |
| 856 | |
| 857 version (DMDV2) { | |
| 858 bool canTakeAddressOf() | |
| 859 { | |
| 860 static if (false) { | |
| 861 /* Global variables and struct/class fields of the form: | |
| 862 * const int x = 3; | |
| 863 * are not stored and hence cannot have their address taken. | |
| 864 */ | |
| 135 | 865 if ((isConst() || isImmutable()) && (storage_class & STC.STCinit) && (!(storage_class & (STC.STCstatic | STC.STCextern)) || (storage_class & STC.STCfield)) && |
| 0 | 866 (!parent || toParent().isModule() || toParent().isTemplateInstance()) && type.toBasetype().isTypeBasic()) |
| 867 { | |
| 868 return false; | |
| 869 } | |
| 870 } else { | |
| 871 if (storage_class & STC.STCmanifest) | |
| 872 return false; | |
| 873 } | |
| 874 return true; | |
| 875 } | |
| 876 | |
|
12
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
877 /****************************************** |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
878 * Return TRUE if variable needs to call the destructor. |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
879 */ |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
880 bool needsAutoDtor() |
| 0 | 881 { |
|
12
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
882 //printf("VarDeclaration.needsAutoDtor() %s\n", toChars()); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
883 |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
884 if (noauto || storage_class & STCnodtor) |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
885 return false; |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
886 |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
887 // Destructors for structs and arrays of structs |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
888 Type tv = type.toBasetype(); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
889 while (tv.ty == Tsarray) |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
890 { |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
891 TypeSArray ta = cast(TypeSArray)tv; |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
892 tv = tv.nextOf().toBasetype(); |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
893 } |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
894 if (tv.ty == Tstruct) |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
895 { |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
896 TypeStruct ts = cast(TypeStruct)tv; |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
897 StructDeclaration sd = ts.sym; |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
898 if (sd.dtor) |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
899 return true; |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
900 } |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
901 |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
902 // Destructors for classes |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
903 if (storage_class & (STCauto | STCscope)) |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
904 { |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
905 if (type.isClassHandle()) |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
906 return true; |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
907 } |
|
832f71e6f96c
*Exp and *AssignExp arrayOp implementation added (might be a bit incomplete)
korDen
parents:
0
diff
changeset
|
908 return false; |
| 0 | 909 } |
| 910 } | |
| 911 | |
| 912 /****************************************** | |
| 913 * If a variable has an auto destructor call, return call for it. | |
| 914 * Otherwise, return null. | |
| 915 */ | |
| 916 Expression callAutoDtor(Scope sc) | |
| 917 { | |
| 918 Expression e = null; | |
| 919 | |
| 920 //printf("VarDeclaration.callAutoDtor() %s\n", toChars()); | |
| 921 | |
| 922 if (noauto || storage_class & STC.STCnodtor) | |
| 923 return null; | |
| 924 | |
| 925 // Destructors for structs and arrays of structs | |
| 926 bool array = false; | |
| 927 Type tv = type.toBasetype(); | |
| 928 while (tv.ty == TY.Tsarray) | |
| 929 { | |
| 930 TypeSArray ta = cast(TypeSArray)tv; | |
| 931 array = true; | |
| 932 tv = tv.nextOf().toBasetype(); | |
| 933 } | |
| 934 if (tv.ty == TY.Tstruct) | |
| 935 { | |
| 936 TypeStruct ts = cast(TypeStruct)tv; | |
| 937 StructDeclaration sd = ts.sym; | |
| 938 if (sd.dtor) | |
| 939 { | |
| 940 if (array) | |
| 941 { | |
| 942 // Typeinfo.destroy(cast(void*)&v); | |
| 943 Expression ea = new SymOffExp(loc, this, 0, 0); | |
| 944 ea = new CastExp(loc, ea, Type.tvoid.pointerTo()); | |
| 945 Expressions args = new Expressions(); | |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
946 args.push(ea); |
| 0 | 947 |
| 948 Expression et = type.getTypeInfo(sc); | |
| 949 et = new DotIdExp(loc, et, Id.destroy); | |
| 950 | |
| 951 e = new CallExp(loc, et, args); | |
| 952 } | |
| 953 else | |
| 954 { | |
| 955 e = new VarExp(loc, this); | |
| 956 e = new DotVarExp(loc, e, sd.dtor, 0); | |
| 957 e = new CallExp(loc, e); | |
| 958 } | |
| 959 return e; | |
| 960 } | |
| 961 } | |
| 962 | |
| 963 // Destructors for classes | |
| 964 if (storage_class & (STC.STCauto | STC.STCscope)) | |
| 965 { | |
| 966 for (ClassDeclaration cd = type.isClassHandle(); cd; cd = cd.baseClass) | |
| 967 { | |
| 968 /* We can do better if there's a way with onstack | |
| 969 * classes to determine if there's no way the monitor | |
| 970 * could be set. | |
| 971 */ | |
| 972 //if (cd.isInterfaceDeclaration()) | |
| 973 //error("interface %s cannot be scope", cd.toChars()); | |
| 974 if (1 || onstack || cd.dtors.dim) // if any destructors | |
| 975 { | |
| 976 // delete this; | |
| 977 Expression ec = new VarExp(loc, this); | |
| 978 e = new DeleteExp(loc, ec); | |
| 979 e.type = Type.tvoid; | |
| 980 break; | |
| 981 } | |
| 982 } | |
| 983 } | |
| 984 return e; | |
| 985 } | |
| 986 | |
| 987 /**************************** | |
| 988 * Get ExpInitializer for a variable, if there is one. | |
| 989 */ | |
| 990 ExpInitializer getExpInitializer() | |
| 991 { | |
| 992 ExpInitializer ei; | |
| 993 | |
| 994 if (init) | |
| 995 ei = init.isExpInitializer(); | |
| 996 else | |
| 997 { | |
| 998 Expression e = type.defaultInit(loc); | |
| 999 if (e) | |
| 1000 ei = new ExpInitializer(loc, e); | |
| 1001 else | |
| 1002 ei = null; | |
| 1003 } | |
| 1004 return ei; | |
| 1005 } | |
| 1006 | |
| 1007 /******************************************* | |
| 1008 * If variable has a constant expression initializer, get it. | |
| 1009 * Otherwise, return null. | |
| 1010 */ | |
| 1011 Expression getConstInitializer() | |
| 1012 { | |
| 135 | 1013 if ((isConst() || isImmutable() || storage_class & STC.STCmanifest) && storage_class & STC.STCinit) |
| 0 | 1014 { |
| 1015 ExpInitializer ei = getExpInitializer(); | |
| 1016 if (ei) | |
| 1017 return ei.exp; | |
| 1018 } | |
| 1019 | |
| 1020 return null; | |
| 1021 } | |
| 1022 | |
| 72 | 1023 override void checkCtorConstInit() |
| 0 | 1024 { |
| 1025 static if (false) { /* doesn't work if more than one static ctor */ | |
| 1026 if (ctorinit == 0 && isCtorinit() && !(storage_class & STCfield)) | |
| 1027 error("missing initializer in static constructor for const variable"); | |
| 1028 } | |
| 1029 } | |
| 1030 | |
| 1031 /************************************ | |
| 1032 * Check to see if this variable is actually in an enclosing function | |
| 1033 * rather than the current one. | |
| 1034 */ | |
| 1035 void checkNestedReference(Scope sc, Loc loc) | |
| 1036 { | |
| 1037 if (parent && !isDataseg() && parent != sc.parent && !(storage_class & STC.STCmanifest)) | |
| 1038 { | |
| 1039 // The function that this variable is in | |
| 1040 FuncDeclaration fdv = toParent().isFuncDeclaration(); | |
| 1041 // The current function | |
| 1042 FuncDeclaration fdthis = sc.parent.isFuncDeclaration(); | |
| 1043 | |
| 1044 if (fdv && fdthis && fdv !is fdthis) | |
| 1045 { | |
| 1046 if (loc.filename) | |
| 1047 fdthis.getLevel(loc, fdv); | |
| 1048 | |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
1049 foreach (f; nestedrefs) |
| 0 | 1050 { |
| 1051 if (f == fdthis) | |
| 1052 goto L1; | |
| 1053 } | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
1054 nestedrefs.push(fdthis); |
| 0 | 1055 L1: ; |
| 1056 | |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
1057 foreach (s; fdv.closureVars) |
| 0 | 1058 { |
| 1059 if (s == this) | |
| 1060 goto L2; | |
| 1061 } | |
| 1062 | |
|
74
7e0d548de9e6
Switch Arrays of Dsymbols to the new templated Vector type
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
73
diff
changeset
|
1063 fdv.closureVars.push(this); |
| 0 | 1064 L2: ; |
| 1065 | |
| 1066 //printf("fdthis is %s\n", fdthis.toChars()); | |
| 1067 //printf("var %s in function %s is nested ref\n", toChars(), fdv.toChars()); | |
| 1068 } | |
| 1069 } | |
| 1070 } | |
| 1071 | |
| 72 | 1072 override Dsymbol toAlias() |
| 0 | 1073 { |
| 1074 //printf("VarDeclaration::toAlias('%s', this = %p, aliassym = %p)\n", toChars(), this, aliassym); | |
| 1075 assert(this !is aliassym); | |
| 1076 return aliassym ? aliassym.toAlias() : this; | |
| 1077 } | |
| 1078 | |
| 72 | 1079 override Symbol* toSymbol() |
| 0 | 1080 { |
| 1081 //printf("VarDeclaration.toSymbol(%s)\n", toChars()); | |
| 1082 //if (needThis()) *(char*)0=0; | |
| 1083 assert(!needThis()); | |
| 1084 if (!csym) | |
| 1085 { | |
| 1086 Symbol* s; | |
| 1087 TYPE* t; | |
| 1088 string id; | |
| 1089 | |
| 1090 if (isDataseg()) | |
| 1091 id = mangle(); | |
| 1092 else | |
| 1093 id = ident.toChars(); | |
| 1094 | |
| 1095 s = symbol_calloc(toStringz(id)); | |
| 1096 | |
| 1097 if (storage_class & (STC.STCout | STC.STCref)) | |
| 1098 { | |
| 1099 if (global.params.symdebug && storage_class & STC.STCparameter) | |
| 1100 { | |
| 1101 t = type_alloc(TYM.TYnptr); // should be TYref, but problems in back end | |
| 1102 t.Tnext = type.toCtype(); | |
| 1103 t.Tnext.Tcount++; | |
| 1104 } | |
| 1105 else | |
| 1106 t = type_fake(TYM.TYnptr); | |
| 1107 } | |
| 1108 else if (storage_class & STC.STClazy) | |
| 1109 t = type_fake(TYM.TYdelegate); // Tdelegate as C type | |
| 1110 else if (isParameter()) | |
| 1111 t = type.toCParamtype(); | |
| 1112 else | |
| 1113 t = type.toCtype(); | |
| 1114 | |
| 1115 t.Tcount++; | |
| 1116 | |
| 1117 if (isDataseg()) | |
| 1118 { | |
| 1119 if (isThreadlocal()) | |
| 1120 { | |
| 1121 /* Thread local storage | |
| 1122 */ | |
| 1123 TYPE* ts = t; | |
| 1124 ts.Tcount++; // make sure a different t is allocated | |
| 1125 type_setty(&t, t.Tty | mTY.mTYthread); | |
| 1126 ts.Tcount--; | |
| 1127 | |
| 1128 if (global.params.vtls) | |
| 1129 { | |
| 1130 string p = loc.toChars(); | |
| 1131 writef("%s: %s is thread local\n", p ? p : "", toChars()); | |
| 1132 } | |
| 1133 } | |
| 1134 | |
| 1135 s.Sclass = SC.SCextern; | |
| 1136 s.Sfl = FL.FLextern; | |
| 1137 slist_add(s); | |
| 1138 } | |
| 1139 else | |
| 1140 { | |
| 1141 s.Sclass = SC.SCauto; | |
| 1142 s.Sfl = FL.FLauto; | |
| 1143 | |
| 1144 if (nestedrefs.dim) | |
| 1145 { | |
| 1146 /* Symbol is accessed by a nested function. Make sure | |
| 1147 * it is not put in a register, and that the optimizer | |
| 1148 * assumes it is modified across function calls and pointer | |
| 1149 * dereferences. | |
| 1150 */ | |
| 1151 //printf("\tnested ref, not register\n"); | |
| 1152 type_setcv(&t, t.Tty | mTY.mTYvolatile); | |
| 1153 } | |
| 1154 } | |
| 1155 | |
| 1156 mangle_t m = 0; | |
| 1157 switch (linkage) | |
| 1158 { | |
| 1159 case LINK.LINKwindows: | |
| 1160 m = mTYman.mTYman_std; | |
| 1161 break; | |
| 1162 | |
| 1163 case LINK.LINKpascal: | |
| 1164 m = mTYman.mTYman_pas; | |
| 1165 break; | |
| 1166 | |
| 1167 case LINK.LINKc: | |
| 1168 m = mTYman.mTYman_c; | |
| 1169 break; | |
| 1170 | |
| 1171 case LINK.LINKd: | |
| 1172 m = mTYman.mTYman_d; | |
| 1173 break; | |
| 1174 | |
| 1175 case LINK.LINKcpp: | |
| 1176 m = mTYman.mTYman_cpp; | |
| 1177 break; | |
| 1178 | |
| 1179 default: | |
| 1180 writef("linkage = %d\n", linkage); | |
| 1181 assert(0); | |
| 1182 } | |
| 1183 type_setmangle(&t, m); | |
| 1184 s.Stype = t; | |
| 1185 | |
| 1186 csym = s; | |
| 1187 } | |
| 1188 return csym; | |
| 1189 } | |
| 1190 | |
| 72 | 1191 override void toObjFile(int multiobj) // compile to .obj file |
| 0 | 1192 { |
| 1193 Symbol* s; | |
| 1194 uint sz; | |
| 1195 Dsymbol parent; | |
| 1196 | |
| 1197 //printf("VarDeclaration.toObjFile(%p '%s' type=%s) protection %d\n", this, toChars(), type.toChars(), protection); | |
| 1198 //printf("\talign = %d\n", type.alignsize()); | |
| 1199 | |
| 1200 if (aliassym) | |
| 1201 { | |
| 1202 toAlias().toObjFile(0); | |
| 1203 return; | |
| 1204 } | |
| 1205 | |
| 1206 version (DMDV2) { | |
| 1207 // Do not store variables we cannot take the address of | |
| 1208 if (!canTakeAddressOf()) | |
| 1209 { | |
| 1210 return; | |
| 1211 } | |
| 1212 } | |
| 1213 | |
| 1214 if (isDataseg() && !(storage_class & STC.STCextern)) | |
| 1215 { | |
| 1216 s = toSymbol(); | |
| 1217 sz = cast(uint)type.size(); | |
| 1218 | |
| 1219 parent = this.toParent(); | |
| 1220 /// version (DMDV1) { /* private statics should still get a global symbol, in case | |
| 1221 /// * another module inlines a function that references it. | |
| 1222 /// */ | |
| 1223 /// if (/*protection == PROT.PROTprivate ||*/ | |
| 1224 /// !parent || parent.ident == null || parent.isFuncDeclaration()) | |
| 1225 /// { | |
| 1226 /// s.Sclass = SC.SCstatic; | |
| 1227 /// } | |
| 1228 /// else | |
| 1229 /// } | |
| 1230 { | |
| 1231 if (storage_class & STC.STCcomdat) | |
| 1232 s.Sclass = SC.SCcomdat; | |
| 1233 else | |
| 1234 s.Sclass = SC.SCglobal; | |
| 1235 | |
| 1236 do | |
| 1237 { | |
| 1238 /* Global template data members need to be in comdat's | |
| 1239 * in case multiple .obj files instantiate the same | |
| 1240 * template with the same types. | |
| 1241 */ | |
| 1242 if (parent.isTemplateInstance() && !parent.isTemplateMixin()) | |
| 1243 { | |
| 1244 version (DMDV1) { | |
| 1245 /* These symbol constants have already been copied, | |
| 1246 * so no reason to output them. | |
| 1247 * Note that currently there is no way to take | |
| 1248 * the address of such a const. | |
| 1249 */ | |
| 1250 if (isConst() && type.toBasetype().ty != TY.Tsarray && init && init.isExpInitializer()) | |
| 1251 return; | |
| 1252 } | |
| 1253 s.Sclass = SC.SCcomdat; | |
| 1254 break; | |
| 1255 } | |
| 1256 parent = parent.parent; | |
| 1257 } while (parent); | |
| 1258 } | |
| 1259 | |
| 1260 s.Sfl = FL.FLdata; | |
| 1261 | |
| 1262 if (init) | |
| 1263 { | |
| 1264 s.Sdt = init.toDt(); | |
| 1265 | |
| 1266 // Look for static array that is block initialized | |
| 1267 Type tb; | |
| 1268 ExpInitializer ie = init.isExpInitializer(); | |
| 1269 | |
| 1270 tb = type.toBasetype(); | |
| 1271 if (tb.ty == TY.Tsarray && ie | |
| 1272 && !tb.nextOf().equals(ie.exp.type.toBasetype().nextOf()) | |
| 1273 && ie.exp.implicitConvTo(tb.nextOf())) | |
| 1274 { | |
| 1275 int dim = cast(int)(cast(TypeSArray)tb).dim.toInteger(); | |
| 1276 | |
| 1277 // Duplicate Sdt 'dim-1' times, as we already have the first one | |
| 1278 while (--dim > 0) | |
| 1279 { | |
| 1280 ie.exp.toDt(&s.Sdt); | |
| 1281 } | |
| 1282 } | |
| 1283 } | |
| 1284 else if (storage_class & STC.STCextern) | |
| 1285 { | |
| 1286 s.Sclass = SC.SCextern; | |
| 1287 s.Sfl = FL.FLextern; | |
| 1288 s.Sdt = null; | |
| 1289 // BUG: if isExport(), shouldn't we make it dllimport? | |
| 1290 return; | |
| 1291 } | |
| 1292 else | |
| 1293 { | |
| 1294 type.toDt(&s.Sdt); | |
| 1295 } | |
| 1296 dt_optimize(s.Sdt); | |
| 1297 | |
| 1298 // See if we can convert a comdat to a comdef, | |
| 1299 // which saves on exe file space. | |
| 1300 if (s.Sclass == SC.SCcomdat && | |
| 1301 s.Sdt && | |
| 1302 s.Sdt.dt == DT.DT_azeros && | |
| 1303 s.Sdt.DTnext is null && | |
| 1304 !isThreadlocal()) | |
| 1305 { | |
| 1306 s.Sclass = SC.SCglobal; | |
| 1307 s.Sdt.dt = DT.DT_common; | |
| 1308 } | |
| 1309 | |
| 1310 version (ELFOBJ_OR_MACHOBJ) { // Burton | |
| 1311 if (s.Sdt && s.Sdt.dt == DT.DT_azeros && s.Sdt.DTnext is null) | |
| 1312 s.Sseg = Segment.UDATA; | |
| 1313 else | |
| 1314 s.Sseg = Segment.DATA; | |
| 1315 } | |
| 1316 if (sz) | |
| 1317 { | |
| 1318 outdata(s); | |
| 1319 if (isExport()) | |
| 1320 obj_export(s, 0); | |
| 1321 } | |
| 1322 } | |
| 1323 } | |
| 1324 | |
| 72 | 1325 override int cvMember(ubyte* p) |
| 0 | 1326 { |
| 1327 assert(false); | |
| 1328 } | |
| 1329 | |
| 1330 // Eliminate need for dynamic_cast | |
| 72 | 1331 override VarDeclaration isVarDeclaration() { return this; } |
|
16
5c9b78899f5d
Implemented methods for Tuples, fixed some linking issues.
Robert Clipsham <robert@octarineparrot.com>
parents:
0
diff
changeset
|
1332 } |
|
84
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
1333 |
|
be2ab491772e
Expressions -> Vector!Expression
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
77
diff
changeset
|
1334 alias Vector!VarDeclaration VarDeclarations; |