Mercurial > projects > qtd
annotate qt/qtd/MOC.d @ 329:0085380ff921 signals
use check for nullness instead of sucky static constructors to create meta objects
| author | eldar1@eldar1-laptop |
|---|---|
| date | Sun, 10 Jan 2010 11:16:49 +0000 |
| parents | c97e5d15bf95 |
| children | 115130499d78 |
| rev | line source |
|---|---|
| 288 | 1 module qt.qtd.MOC; |
| 2 | |
| 3 import qt.qtd.ctfe.Format; | |
| 4 | |
| 5 import std.typetuple; | |
| 6 | |
|
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7 import qt.QGlobal; |
| 288 | 8 import qt.Signal; |
| 9 import qt.qtd.MetaMarshall; | |
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10 import qt.qtd.Meta; |
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11 |
| 302 | 12 public import qt.core.QString; |
| 288 | 13 |
| 14 public import std.traits; | |
| 15 /** | |
| 16 Utils. | |
| 17 */ | |
| 18 | |
| 19 bool is_digit_char(const char s) | |
| 20 { | |
| 21 return (s >= '0' && s <= '9'); | |
| 22 } | |
| 23 | |
| 24 bool is_octal_char(const char s) | |
| 25 { | |
| 26 return (s >= '0' && s <= '7'); | |
| 27 } | |
| 28 | |
| 29 bool is_hex_char(const char s) | |
| 30 { | |
| 31 return ((s >= 'a' && s <= 'f') | |
| 32 || (s >= 'A' && s <= 'F') | |
| 33 || (s >= '0' && s <= '9') | |
| 34 ); | |
| 35 } | |
| 36 | |
| 37 int lastIndexOf(T)(T[] haystack, T[] needle, int from = -1) | |
| 38 { | |
| 39 auto l = haystack.length; | |
| 40 auto ol = needle.length; | |
| 41 int delta = l - ol; | |
| 42 if (from < 0) | |
| 43 from = delta; | |
| 44 if (from < 0 || from > l) | |
| 45 return -1; | |
| 46 if (from > delta) | |
| 47 from = delta; | |
| 48 | |
| 49 while(from >= 0) | |
| 50 { | |
| 51 if (haystack[from..from+ol] == needle) | |
| 52 return from; | |
| 53 from--; | |
| 54 } | |
| 55 return -1; | |
| 56 } | |
| 57 | |
| 58 | |
| 59 T[] newArray(T)(size_t len, T[] from = []) | |
| 60 { | |
| 61 if (len == from.length) | |
| 62 return from; | |
| 63 | |
| 64 if (!from.length) | |
| 65 from = [T.init]; | |
| 66 | |
| 67 if (from.length < len) | |
| 68 return newArray!T(len, from ~ from); | |
| 69 | |
| 70 return from[0..len]; | |
| 71 } | |
| 72 | |
| 73 string replicate(int n, char value) | |
| 74 { | |
| 75 char[] ret = "".dup; | |
| 76 if (n > 0) | |
| 77 { | |
| 78 // ret = newArray!char(n); | |
| 79 for(int i = 0; i < n; i++) | |
| 80 ret ~= value; | |
| 81 } | |
| 82 return cast(string)ret; | |
| 83 } | |
| 84 | |
| 85 /** | |
| 86 CTFE MOC port. | |
| 87 */ | |
| 88 | |
| 89 enum MethodFlags { | |
| 90 AccessPrivate = 0x00, | |
| 91 AccessProtected = 0x01, | |
| 92 AccessPublic = 0x02, | |
| 93 MethodMethod = 0x00, | |
| 94 MethodSignal = 0x04, | |
| 95 MethodSlot = 0x08, | |
| 96 MethodConstructor = 0x0c, | |
| 97 MethodCompatibility = 0x10, | |
| 98 MethodCloned = 0x20, | |
| 99 MethodScriptable = 0x40 | |
| 100 } | |
| 101 | |
| 102 enum Access { Private, Protected, Public } | |
| 103 | |
| 104 struct FunctionDef | |
| 105 { | |
| 106 /* FunctionDef(): returnTypeIsVolatile(false), access(Private), isConst(false), isVirtual(false), | |
| 107 inlineCode(false), wasCloned(false), isCompat(false), isInvokable(false), | |
| 108 isScriptable(false), isSlot(false), isSignal(false), | |
| 109 isConstructor(false), isDestructor(false), isAbstract(false) {} | |
| 110 */ | |
| 111 // Type type; | |
| 112 // string normalizedType; | |
| 113 // string tag; | |
| 114 // string name; | |
| 115 string sig; | |
| 116 string arguments; | |
| 117 Access access; | |
| 118 /* bool returnTypeIsVolatile; | |
| 119 | |
| 120 QList<ArgumentDef> arguments; | |
| 121 | |
| 122 enum Access { Private, Protected, Public }; | |
| 123 bool isConst; | |
| 124 bool isVirtual; | |
| 125 bool inlineCode; | |
| 126 bool wasCloned; | |
| 127 | |
| 128 QByteArray inPrivateClass; | |
| 129 bool isCompat; | |
| 130 bool isInvokable; | |
| 131 bool isScriptable; | |
| 132 bool isSlot; | |
| 133 bool isSignal; | |
| 134 bool isConstructor; | |
| 135 bool isDestructor; | |
| 136 bool isAbstract; | |
| 137 */ | |
| 138 } | |
| 139 | |
| 140 FunctionDef newSlot(string sig, string args) | |
| 141 { | |
| 142 return FunctionDef(sig, args, Access.Public); | |
| 143 } | |
| 144 | |
| 145 FunctionDef newSignal(string sig, string args) | |
| 146 { | |
| 147 return FunctionDef(sig, args, Access.Protected); | |
| 148 } | |
| 149 | |
| 150 struct Generator | |
| 151 { | |
| 152 string output; | |
| 153 string[] strings; | |
| 154 // QByteArray purestSuperClass; | |
| 155 // QList<QByteArray> metaTypes; | |
| 156 } | |
| 157 | |
| 158 int lengthOfEscapeSequence(string s, uint i) | |
| 159 { | |
| 160 if (s[i] != '\\' || i >= s.length - 1) | |
| 161 return 1; | |
| 162 const int startPos = i; | |
| 163 ++i; | |
| 164 auto ch = s[i]; | |
| 165 if (ch == 'x') { | |
| 166 ++i; | |
| 167 while (i < s.length && is_hex_char(s[i])) | |
| 168 ++i; | |
| 169 } else if (is_octal_char(ch)) { | |
| 170 while (i < startPos + 4 | |
| 171 && i < s.length | |
| 172 && is_octal_char(s[i])) { | |
| 173 ++i; | |
| 174 } | |
| 175 } else { // single character escape sequence | |
| 176 i = qMin(i + 1, s.length); | |
| 177 } | |
| 178 return i - startPos; | |
| 179 } | |
| 180 | |
| 181 int strreg(ref Generator gen, string s) | |
| 182 { | |
| 183 int idx = 0; | |
| 184 foreach (str; gen.strings) { | |
| 185 if (str == s) | |
| 186 return idx; | |
| 187 idx += str.length + 1; | |
| 188 foreach (i, c; str) { | |
| 189 if (c == '\\') { | |
| 190 int cnt = lengthOfEscapeSequence(str, i) - 1; | |
| 191 idx -= cnt; | |
| 192 i += cnt; | |
| 193 } | |
| 194 } | |
| 195 } | |
| 196 gen.strings ~= s; | |
| 197 return idx; | |
| 198 } | |
| 199 | |
| 200 void generateFunctions(ref Generator gen, FunctionDef[] list, string functype, byte type) | |
| 201 { | |
| 202 if (!list.length) | |
| 203 return; | |
| 204 gen.output ~= format_ctfe("\n // ${}s: signature, parameters, type, tag, flags\n", functype); | |
| 205 | |
| 206 foreach (i, f; list) { | |
| 207 byte flags = type; | |
| 208 | |
| 209 if (f.access == Access.Private) | |
| 210 flags |= MethodFlags.AccessPrivate; | |
| 211 else if (f.access == Access.Public) | |
| 212 flags |= MethodFlags.AccessPublic; | |
| 213 else if (f.access == Access.Protected) | |
| 214 flags |= MethodFlags.AccessProtected; | |
| 215 | |
| 216 gen.output ~= format_ctfe(" ${}, ${}, ${}, ${}, 0x${:x},\n", strreg(gen, f.sig), | |
| 217 strreg(gen, f.arguments), strreg(gen, ""/*f.normalizedType*/), strreg(gen, ""/*f.tag*/), flags); | |
| 218 } | |
| 219 } | |
| 220 | |
| 221 string generateCode(string className, FunctionDef[] signalList, FunctionDef[] slotList) | |
| 222 { | |
| 223 auto gen = Generator("", []); | |
| 224 | |
| 225 /* bool isQt = (cdef->classname == "Qt"); | |
| 226 bool isQObject = (cdef->classname == "QObject"); | |
| 227 bool isConstructible = !cdef->constructorList.isEmpty(); | |
| 228 | |
| 229 // | |
| 230 // build the data array | |
| 231 // | |
| 232 int i = 0; | |
| 233 | |
| 234 | |
| 235 // filter out undeclared enumerators and sets | |
| 236 { | |
| 237 QList<EnumDef> enumList; | |
| 238 for (i = 0; i < cdef->enumList.count(); ++i) { | |
| 239 EnumDef def = cdef->enumList.at(i); | |
| 240 if (cdef->enumDeclarations.contains(def.name)) { | |
| 241 enumList += def; | |
| 242 } | |
| 243 QByteArray alias = cdef->flagAliases.value(def.name); | |
| 244 if (cdef->enumDeclarations.contains(alias)) { | |
| 245 def.name = alias; | |
| 246 enumList += def; | |
| 247 } | |
| 248 } | |
| 249 cdef->enumList = enumList; | |
| 250 } | |
| 251 | |
| 252 | |
| 253 QByteArray qualifiedClassNameIdentifier = cdef->qualified; | |
| 254 qualifiedClassNameIdentifier.replace(':', '_'); | |
| 255 */ | |
| 256 bool isConstructible = false; | |
| 257 | |
| 258 FunctionDef[] propertyList, enumList, constructorList; | |
| 259 int index = 12; | |
| 260 gen.output ~= format_ctfe("static const uint[] qt_meta_data_${} = [\n", className); | |
| 261 gen.output ~= format_ctfe("\n // content:\n"); | |
| 262 gen.output ~= format_ctfe(" ${}, // revision\n", 2); | |
| 263 gen.output ~= format_ctfe(" ${}, // classname\n", strreg(gen, className)); | |
| 264 gen.output ~= format_ctfe(" ${}, ${}, // classinfo\n", 0, 0); | |
| 265 // index += cdef->classInfoList.count() * 2; | |
| 266 | |
| 267 int methodCount = signalList.length + slotList.length;// + cdef->methodList.count(); | |
| 268 gen.output ~= format_ctfe(" ${}, ${}, // methods\n", methodCount, methodCount ? index : 0); | |
| 269 index += methodCount * 5; | |
| 270 gen.output ~= format_ctfe(" ${}, ${}, // properties\n", propertyList.length, propertyList.length ? index : 0); | |
| 271 index += propertyList.length * 3; | |
| 272 // if(cdef->notifyableProperties) | |
| 273 // index += cdef->propertyList.count(); | |
| 274 gen.output ~= format_ctfe(" ${}, ${}, // enums/sets\n", enumList.length, enumList.length ? index : 0); | |
| 275 | |
| 276 // int enumsIndex = index; | |
| 277 // for (i = 0; i < cdef->enumList.count(); ++i) | |
| 278 // index += 4 + (cdef->enumList.at(i).values.count() * 2); | |
| 279 gen.output ~= format_ctfe(" ${}, ${}, // constructors\n", isConstructible ? constructorList.length : 0, | |
| 280 isConstructible ? index : 0); | |
| 281 | |
| 282 // | |
| 283 // Build classinfo array | |
| 284 // | |
| 285 // generateClassInfos(); | |
| 286 | |
| 287 // | |
| 288 // Build signals array first, otherwise the signal indices would be wrong | |
| 289 // | |
| 290 generateFunctions(gen, signalList, "signal", MethodFlags.MethodSignal); | |
| 291 | |
| 292 // | |
| 293 // Build slots array | |
| 294 // | |
| 295 generateFunctions(gen, slotList, "slot", MethodFlags.MethodSlot); | |
| 296 | |
| 297 // | |
| 298 // Build method array | |
| 299 // | |
| 300 // generateFunctions(cdef->methodList, "method", MethodMethod); | |
| 301 | |
| 302 | |
| 303 // | |
| 304 // Build property array | |
| 305 // | |
| 306 // generateProperties(); | |
| 307 | |
| 308 // | |
| 309 // Build enums array | |
| 310 // | |
| 311 // generateEnums(enumsIndex); | |
| 312 | |
| 313 // | |
| 314 // Build constructors array | |
| 315 // | |
| 316 // if (isConstructible) | |
| 317 // generateFunctions(cdef->constructorList, "constructor", MethodConstructor); | |
| 318 | |
| 319 // | |
| 320 // Terminate data array | |
| 321 // | |
| 322 gen.output ~= format_ctfe("\n 0 // eod\n];\n\n"); | |
| 323 | |
| 324 // | |
| 325 // Build stringdata array | |
| 326 // | |
| 327 gen.output ~= format_ctfe("static const string qt_meta_stringdata_${} = \n", className); | |
| 328 gen.output ~= format_ctfe(" \""); | |
| 329 int col = 0; | |
| 330 int len = 0; | |
| 331 foreach (i, s; gen.strings) { | |
| 332 len = s.length; | |
| 333 if (col && col + len >= 72) { | |
| 334 gen.output ~= format_ctfe("\"\n \""); | |
| 335 col = 0; | |
| 336 } else if (len && s[0] >= '0' && s[0] <= '9') { | |
| 337 gen.output ~= format_ctfe("\"\""); | |
| 338 len += 2; | |
| 339 } | |
| 340 int idx = 0; | |
| 341 while (idx < s.length) { | |
| 342 if (idx > 0) { | |
| 343 col = 0; | |
| 344 gen.output ~= format_ctfe("\"\n \""); | |
| 345 } | |
| 346 int spanLen = qMin(cast(uint)70, s.length - idx); | |
| 347 // don't cut escape sequences at the end of a line | |
| 348 int backSlashPos = s.lastIndexOf("\\", idx + spanLen - 1); | |
| 349 if (backSlashPos >= idx) { | |
| 350 int escapeLen = lengthOfEscapeSequence(s, backSlashPos); | |
| 351 spanLen = qBound(spanLen, backSlashPos + escapeLen - idx, cast(int)(s.length - idx)); | |
| 352 } | |
| 353 gen.output ~= s[idx..idx+spanLen]; | |
| 354 idx += spanLen; | |
| 355 col += spanLen; | |
| 356 } | |
| 357 | |
| 358 gen.output ~= "\\0"; | |
| 359 col += len + 2; | |
| 360 } | |
| 361 gen.output ~= "\";\n\n"; | |
| 362 | |
| 363 return gen.output; | |
| 364 } | |
| 365 | |
| 366 string metaCallArgs(Args...)() | |
| 367 { | |
| 368 string res; | |
| 369 foreach(i, _; Args) { | |
| 370 if (i > 0) | |
| 371 res ~= ","; | |
| 372 res ~= metaCallArgument!(Args[i])("_a[" ~ __toString(i+1) ~ "]"); | |
| 373 } | |
| 374 return res; | |
| 375 } | |
| 376 | |
| 377 string qtDeclArgs(Args...)() | |
| 378 { | |
| 379 string ret; | |
| 380 foreach(i, _; Args) | |
| 381 { | |
| 382 if(i > 0) | |
| 383 ret ~= ","; | |
| 384 ret ~= qtDeclArg!(Args[i]); | |
| 385 } | |
| 386 return ret; | |
| 387 } | |
| 388 | |
| 389 string generate_qt_metacall(alias Signals, alias Slots)() | |
| 390 { | |
| 391 string res = " | |
| 392 protected int qt_metacall(QMetaObject.Call _c, int _id, void **_a) | |
| 393 { | |
| 394 _id = super.qt_metacall(_c, _id, _a); | |
| 395 if (_id < 0) | |
| 396 return _id;\n"; | |
| 397 | |
| 398 alias TypeTuple!(Signals.at, Slots.at) Methods; | |
| 399 enum methodCount = Methods.length; | |
| 400 if(methodCount) | |
| 401 { | |
| 402 res ~= " | |
| 403 if (_c == QMetaObject.Call.InvokeMetaMethod) { | |
| 404 switch (_id) {"; | |
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new signals and slots syntax. have to use prefixes now: signal_fooed and slot_onFooed
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changeset
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405 foreach(i, _; Repeat!(void, methodCount)) { |
| 288 | 406 res ~= " |
| 407 case " ~ __toString(i) ~ ": " ~ MetaEntryName!(Methods[i].at) ~ "(" ~ metaCallArgs!(MetaEntryArgs!(Methods[i].at))() ~ "); break;"; | |
| 408 } | |
| 409 res ~= "\n default: ;\n }\n"; | |
| 410 res ~= " _id -= " ~ __toString(methodCount) ~ ";"; | |
| 411 res ~= "\n }"; | |
| 412 } | |
| 413 | |
| 414 res ~= "\n return _id; | |
| 415 }"; | |
| 416 return res; | |
| 417 } | |
| 418 | |
| 419 string dDeclArgs(Args...)() | |
| 420 { | |
| 421 string ret; | |
| 422 foreach(i, _; Args) | |
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423 { |
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424 if (i > 0) |
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425 ret ~= ", "; |
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7c2cf27391c4
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426 ret ~= Args[i].stringof; |
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427 } |
| 288 | 428 return ret; |
| 429 } | |
| 430 string genMetaMethodsConstr(alias Funcs)(string className) | |
| 431 { | |
| 432 string res; | |
| 433 enum funcsCount = Funcs.at.length; | |
| 434 foreach(i, bogus; Repeat!(void, funcsCount)) | |
| 435 { | |
| 436 res ~= " index++;\n" ~ | |
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437 " _staticMetaObject.addMethod(new " ~ className ~ "(signature!(" ~ dDeclArgs!(MetaEntryArgs!(Funcs.at[i].at))()~ ")(\"" ~ MetaEntryName!(Funcs.at[i].at) ~ "\"), index));\n\n"; |
| 288 | 438 } |
| 439 return res; | |
| 440 } | |
| 441 string generateMetaObjectConstruction(alias Signals, alias Slots)() | |
| 442 { | |
| 443 string res; | |
| 444 res ~= "\n | |
| 445 private static void _populateMetaInfo() { | |
| 446 alias BaseClassesTuple!(typeof(this))[0] BaseClass; | |
| 447 int index = BaseClass.staticMetaObject().methodCount() - 1;\n\n"; | |
| 448 | |
| 449 res ~= genMetaMethodsConstr!(Signals)("QMetaSignal"); | |
| 450 res ~= genMetaMethodsConstr!(Slots)("QMetaSlot"); | |
| 451 | |
| 452 res ~= " | |
| 453 }\n"; | |
| 454 return res; | |
| 455 } | |
| 456 | |
| 457 string generateQMetaObject(string className) | |
| 458 { | |
| 459 string res; | |
| 460 res ~= " | |
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461 public QMetaObject metaObject() |
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462 { |
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463 if(!_staticMetaObject) |
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464 createStaticMetaObject(); |
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465 return staticMetaObject(); |
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466 } |
| 288 | 467 private static QMetaObject _staticMetaObject; |
| 468 private static QMetaObjectNative _nativeStaticMetaObject; | |
| 469 public static QMetaObject staticMetaObject() { return _staticMetaObject; } | |
| 470 protected static void createStaticMetaObject() { | |
| 471 assert(!_staticMetaObject); | |
| 472 alias BaseClassesTuple!(typeof(this))[0] BaseClass; | |
| 473 if (!BaseClass._staticMetaObject) | |
| 474 BaseClass.createStaticMetaObject; | |
| 475 auto base = BaseClass._staticMetaObject; | |
| 476 _nativeStaticMetaObject = QMetaObjectNative(base.nativeId, qt_meta_stringdata_" ~ className ~ ".ptr, | |
| 477 qt_meta_data_" ~ className ~ ".ptr, null ); | |
| 478 | |
| 479 _staticMetaObject = new QMetaObject(&_nativeStaticMetaObject, base); | |
| 480 // _staticMetaObject.construct!(typeof(this)); | |
| 481 _populateMetaInfo(); | |
| 482 }\n\n"; | |
| 483 return res; | |
| 484 } | |
| 485 | |
| 486 size_t commaCount(int argCount) | |
| 487 { | |
| 488 size_t ret = 0; | |
| 489 if(argCount > 1) | |
| 490 ret = argCount - 1; | |
| 491 return ret; | |
| 492 } | |
| 493 | |
| 494 FunctionDef[] genFuncDefs(alias Funcs, alias newFunc)() | |
| 495 { | |
| 496 typeof(return) res; | |
| 497 enum funcsCount = Funcs.at.length; | |
| 498 foreach(i, bogus; Repeat!(void, funcsCount)) | |
| 499 { | |
| 500 string args = replicate(commaCount((MetaEntryArgs!(Funcs.at[i].at)).length), ','); | |
| 501 string funcSig = MetaEntryName!(Funcs.at[i].at) ~ "(" ~ qtDeclArgs!(MetaEntryArgs!(Funcs.at[i].at))() ~ ")"; | |
| 502 res ~= newFunc(funcSig, args); | |
| 503 } | |
| 504 return res; | |
| 505 } | |
| 506 | |
| 507 template Q_OBJECT_BIND() | |
| 508 { | |
| 509 } | |
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A slight change of the connect syntax. More sofisticated signals/slots lookup. Some fixes in examples.
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510 |
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319
894d40eb89b6
new signals and slots syntax. have to use prefixes now: signal_fooed and slot_onFooed
eldar_ins@eldar-laptop
parents:
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511 // ------------------------------------------------------------------------------------------ |
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894d40eb89b6
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512 |
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894d40eb89b6
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513 string generateSignalEmitters(alias Funcs)() |
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514 { |
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894d40eb89b6
new signals and slots syntax. have to use prefixes now: signal_fooed and slot_onFooed
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515 string res; |
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516 enum funcsCount = Funcs.at.length; |
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517 foreach(i, bogus; Repeat!(void, funcsCount)) |
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518 { |
| 327 | 519 res ~= SignalEmitter!(MetaEntryArgs!(Funcs.at[i].at))(SignalType.NewSignal, MetaEntryName!(Funcs.at[i].at), cast(string[])[], i); |
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520 } |
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521 return res; |
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522 } |
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523 |
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524 string generateSlotAliases(alias Funcs)() |
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525 { |
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526 string res; |
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527 enum funcsCount = Funcs.at.length; |
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528 foreach(i, bogus; Repeat!(void, funcsCount)) |
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529 { |
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530 string name = MetaEntryName!(Funcs.at[i].at); |
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531 res ~= format_ctfe(" alias slot_${} ${};\n", name, name); |
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532 } |
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533 return res; |
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534 } |
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535 |
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536 |
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537 string generateMetaInfo(T, alias Signals, alias Slots)() |
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538 { |
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539 string res = ""; |
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540 auto signalList = genFuncDefs!(Signals, newSignal)(); |
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541 auto slotList = genFuncDefs!(Slots, newSlot)(); |
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542 res ~= generateSignalEmitters!(Signals)(); |
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543 res ~= generateSlotAliases!(Slots)(); |
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544 res ~= generateCode(T.stringof, signalList, slotList); |
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545 res ~= generate_qt_metacall!(Signals, Slots); |
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546 res ~= generateMetaObjectConstruction!(Signals, Slots); |
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547 res ~= generateQMetaObject(T.stringof); |
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548 return res; |
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549 } |
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550 |
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551 template Q_OBJECT() |
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552 { |
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553 alias findSignals!(typeof(this)) SignalFuncs; |
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554 alias toMetaEntries!(SignalFuncs) SignalMetaEntries; |
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555 alias findSlots!(typeof(this)) SlotFuncs; |
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556 alias toMetaEntries!(SlotFuncs) SlotMetaEntries; |
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557 |
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558 mixin(generateMetaInfo!(typeof(this), SignalMetaEntries, SlotMetaEntries)()); |
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559 // debug output |
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560 // pragma(msg, generateMetaInfo!(typeof(this), SignalMetaEntries, SlotMetaEntries)()); |
| 327 | 561 } |