tests.rtti.value.pas 61 KB

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  1. unit tests.rtti.value;
  2. {$mode ObjFPC}{$H+}
  3. interface
  4. uses
  5. fpcunit,testregistry, testutils, typinfo,
  6. Classes, SysUtils, Rtti;
  7. Type
  8. TTestValueGeneral = Class(TTestCase)
  9. Published
  10. procedure TestDataSize;
  11. procedure TestDataSizeEmpty;
  12. procedure TestReferenceRawData;
  13. procedure TestReferenceRawDataEmpty;
  14. procedure TestIsManaged;
  15. procedure TestCasts;
  16. procedure TestAssignPointer;
  17. end;
  18. TTestValueSimple = Class(TTestCase)
  19. private
  20. procedure MakeFromOrdinalTObject;
  21. procedure MakeFromOrdinalSet;
  22. procedure MakeFromOrdinalString;
  23. procedure MakeFromOrdinalNil;
  24. Published
  25. // Moved here from Tests.rtti
  26. procedure TestIsType;
  27. procedure TestMakeNil;
  28. procedure TestMakeObject;
  29. procedure TestMakeSingle;
  30. procedure TestMakeDouble;
  31. procedure TestMakeExtended;
  32. procedure TestMakeCurrency;
  33. procedure TestMakeComp;
  34. procedure TestMakeEnum;
  35. procedure TestMakeAnsiChar;
  36. procedure TestMakeWideChar;
  37. procedure TestMakeNativeInt;
  38. procedure TestMakeVariant;
  39. procedure TestMakeGenericNil;
  40. procedure TestMakeGenericLongInt;
  41. procedure TestMakeGenericString;
  42. procedure TestMakeGenericObject;
  43. procedure TestMakeGenericDouble;
  44. procedure TestMakeGenericAnsiChar;
  45. procedure TestMakeGenericWideChar;
  46. procedure TestFromOrdinal;
  47. Procedure TestTryCastUnicodeString;
  48. procedure TestMakeManagedRecord;
  49. procedure TestMakeStaticArrayOfManagedRecord;
  50. end;
  51. { TTestValueArray }
  52. TTestValueArray = class(TTestCase)
  53. Published
  54. procedure TestMakeArrayDynamic;
  55. procedure TestMakeArrayStatic;
  56. procedure TestMakeFromArray;
  57. {$ifdef fpc}
  58. procedure TestMakeArrayOpen;
  59. Procedure TestOpenArrayToDyn;
  60. {$ENDIF}
  61. end;
  62. { TTestValueVariant }
  63. TTestValueVariant = class(TTestCase)
  64. private
  65. FSrc: Variant;
  66. FValue: TValue;
  67. FVarRec: TVarRec;
  68. Public
  69. Procedure Setup; override;
  70. Procedure TearDown; override;
  71. Procedure DoFromVariant;
  72. Procedure DoFromVarRec;
  73. Property Value : TValue Read FValue;
  74. Property Src : Variant Read FSrc;
  75. Property VarRec : TVarRec Read FVarRec;
  76. Published
  77. Procedure TestFromVariantInteger;
  78. Procedure TestFromVariantBoolean;
  79. Procedure TestFromVariantSmallInt;
  80. Procedure TestFromVariantOleStr;
  81. Procedure TestFromVariantInt64;
  82. Procedure TestFromVariantQWord;
  83. Procedure TestFromVariantShortInt;
  84. Procedure TestFromVariantByte;
  85. Procedure TestFromVariantWord;
  86. Procedure TestFromVariantLongWord;
  87. Procedure TestFromVariantSingle;
  88. Procedure TestFromVariantDouble;
  89. Procedure TestFromVariantDate;
  90. Procedure TestFromVariantDispatch;
  91. Procedure TestFromVariantError;
  92. Procedure TestFromVariantUnknown;
  93. Procedure TestFromVariantCurrency;
  94. Procedure TestFromVariantString;
  95. Procedure TestFromVariantUnicodeString;
  96. Procedure TestFromVarrecInteger;
  97. Procedure TestFromVarrecBoolean;
  98. Procedure TestFromVarRecChar;
  99. Procedure TestFromVarRecExtended;
  100. Procedure TestFromVarRecString;
  101. Procedure TestFromVarRecPointer;
  102. Procedure TestFromVarRecPChar;
  103. Procedure TestFromVarRecObject;
  104. Procedure TestFromVarRecClass;
  105. Procedure TestFromVarRecWideChar;
  106. Procedure TestFromVarRecPWideChar;
  107. Procedure TestFromVarRecAnsiString;
  108. Procedure TestFromVarRecCurrency;
  109. Procedure TestFromVarRecVariant;
  110. Procedure TestFromVarRecInterface;
  111. Procedure TestFromVarRecWideString;
  112. Procedure TestFromVarRecInt64;
  113. Procedure TestFromVarRecQWord;
  114. Procedure TestFromVarRecUnicodeString;
  115. Procedure TestArrayOfConstToTValue;
  116. end;
  117. { TMyUNknown }
  118. TMyUNknown = Class(TInterfacedObject,IDispatch)
  119. function GetTypeInfoCount(out count : longint) : HResult;stdcall;
  120. function GetTypeInfo(Index,LocaleID : longint; out TypeInfo): HResult;stdcall;
  121. function GetIDsOfNames(const iid: TGUID; names: Pointer; NameCount, LocaleID: LongInt; DispIDs: Pointer) : HResult;stdcall;
  122. function Invoke(DispID: LongInt;const iid : TGUID; LocaleID : longint; Flags: Word;var params; VarResult,ExcepInfo,ArgErr : pointer) : HResult;stdcall;
  123. end;
  124. implementation
  125. uses tests.rtti.types, variants;
  126. { TTestValueVariant }
  127. procedure TTestValueVariant.Setup;
  128. begin
  129. inherited Setup;
  130. FValue:=Default(TValue);
  131. FSrc:=unassigned;
  132. end;
  133. procedure TTestValueVariant.TearDown;
  134. begin
  135. FValue:=Default(TValue);
  136. FSrc:=unassigned;
  137. inherited TearDown;
  138. end;
  139. procedure TTestValueVariant.DoFromVariant;
  140. begin
  141. FValue:=TValue.FromVariant(Src);
  142. end;
  143. procedure TTestValueVariant.DoFromVarRec;
  144. begin
  145. FValue:=TValue.FromVarRec(FVarRec);
  146. end;
  147. procedure TTestValueVariant.TestFromVarrecInteger;
  148. begin
  149. FVarrec.VType:=vtInteger;
  150. FVarrec.VInteger:=1;
  151. DoFromVarRec;
  152. CheckEquals(1,Value.AsInteger,'Value');
  153. CheckTrue(TypeInfo(Integer)=Value.TypeInfo,'Correct typeinfo');
  154. CheckEquals(Value.IsClass, False,'Class');
  155. CheckEquals(Value.IsObject, False,'Object');
  156. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  157. end;
  158. procedure TTestValueVariant.TestFromVarrecBoolean;
  159. begin
  160. FVarrec.VType:=vtBoolean;
  161. FVarrec.VBoolean:=True;
  162. DoFromVarRec;
  163. CheckEquals(True,Value.AsBoolean,'Value');
  164. CheckTrue(TypeInfo(Boolean)=Value.TypeInfo,'Correct typeinfo');
  165. CheckEquals(Value.IsClass, False,'Class');
  166. CheckEquals(Value.IsObject, False,'Object');
  167. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  168. end;
  169. procedure TTestValueVariant.TestFromVarRecChar;
  170. begin
  171. FVarrec.VType:=vtChar;
  172. FVarrec.VChar:='c';
  173. DoFromVarRec;
  174. CheckEquals('c',Value.AsAnsiChar,'Value');
  175. CheckTrue(TypeInfo(AnsiChar)=Value.TypeInfo,'Correct typeinfo');
  176. CheckEquals(Value.IsClass, False,'Class');
  177. CheckEquals(Value.IsObject, False,'Object');
  178. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  179. end;
  180. procedure TTestValueVariant.TestFromVarRecExtended;
  181. var
  182. E : Extended;
  183. begin
  184. E:=1.23;
  185. FVarRec.VExtended:=@E;
  186. FVarRec.vType:=vtExtended;
  187. DoFromVarRec;
  188. CheckEquals(1.23,Value.AsExtended,0.01,'Value');
  189. CheckTrue(TypeInfo(Extended)=Value.TypeInfo,'Correct typeinfo');
  190. CheckEquals(Value.IsClass, False,'Class');
  191. CheckEquals(Value.IsObject, False,'Object');
  192. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  193. end;
  194. procedure TTestValueVariant.TestFromVarRecString;
  195. Var
  196. s : ShortString;
  197. begin
  198. S:='123';
  199. FVarrec.VType:=vtString;
  200. FVarrec.VString:=@S;
  201. DoFromVarRec;
  202. CheckEquals('123',Value.AsString,'Value');
  203. CheckTrue(TypeInfo(ShortString)=Value.TypeInfo,'Correct typeinfo');
  204. CheckEquals(Value.IsClass, False,'Class');
  205. CheckEquals(Value.IsObject, False,'Object');
  206. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  207. end;
  208. procedure TTestValueVariant.TestFromVarRecPointer;
  209. Var
  210. s : ShortString;
  211. begin
  212. S:='123';
  213. FVarrec.VType:=vtPointer;
  214. FVarrec.VString:=@S;
  215. DoFromVarRec;
  216. CheckTrue(@S=Value.AsPointer,'Value');
  217. CheckTrue(TypeInfo(Pointer)=Value.TypeInfo,'Correct typeinfo');
  218. CheckEquals(Value.IsClass, False,'Class');
  219. CheckEquals(Value.IsObject, False,'Object');
  220. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  221. end;
  222. procedure TTestValueVariant.TestFromVarRecPChar;
  223. Var
  224. s : AnsiString;
  225. begin
  226. S:='123';
  227. FVarrec.VType:=vtPChar;
  228. FVarrec.VPChar:=PAnsiChar(S);
  229. DoFromVarRec;
  230. CheckTrue(S=Value.AsAnsiString,'Value');
  231. // In delphi it is String, but not widestring !
  232. CheckTrue(TypeInfo(AnsiString)=Value.TypeInfo,'Correct typeinfo');
  233. CheckEquals(Value.IsClass, False,'Class');
  234. CheckEquals(Value.IsObject, False,'Object');
  235. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  236. end;
  237. procedure TTestValueVariant.TestFromVarRecObject;
  238. Var
  239. C : TObject;
  240. begin
  241. C:=TComponent.Create(Nil);
  242. FVarrec.VType:=vtObject;
  243. FVarrec.VObject:=C;
  244. DoFromVarRec;
  245. CheckSame(C,Value.AsObject,'Value');
  246. // In delphi it is String, but not widestring !
  247. CheckTrue(TypeInfo(TComponent)=Value.TypeInfo,'Correct typeinfo');
  248. CheckEquals(Value.IsClass, False,'Class');
  249. CheckEquals(Value.IsObject, True,'Object');
  250. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  251. end;
  252. procedure TTestValueVariant.TestFromVarRecClass;
  253. Var
  254. C : TClass;
  255. begin
  256. C:=TComponent;
  257. FVarrec.VType:=vtClass;
  258. FVarrec.VClass:=C;
  259. DoFromVarRec;
  260. CheckEquals(C,Value.AsClass,'Value');
  261. // In delphi it is String, but not widestring !
  262. CheckTrue(TypeInfo(TClass)=Value.TypeInfo,'Correct typeinfo');
  263. CheckEquals(Value.IsClass, True,'Class');
  264. CheckEquals(Value.IsObject, False,'Object');
  265. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  266. end;
  267. procedure TTestValueVariant.TestFromVarRecWideChar;
  268. begin
  269. FVarrec.VType:=vtWideChar;
  270. FVarrec.VWideChar:='c';
  271. DoFromVarRec;
  272. CheckEquals('c',Value.AsWideChar,'Value');
  273. CheckTrue(TypeInfo(WideChar)=Value.TypeInfo,'Correct typeinfo');
  274. CheckEquals(Value.IsClass, False,'Class');
  275. CheckEquals(Value.IsObject, False,'Object');
  276. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  277. end;
  278. procedure TTestValueVariant.TestFromVarRecPWideChar;
  279. Var
  280. s : WideString;
  281. begin
  282. S:='123';
  283. FVarrec.VType:=vtPWideChar;
  284. FVarrec.VPWideChar:=PWideChar(S);
  285. DoFromVarRec;
  286. CheckEquals('123',Value.AsUnicodeString,'Value');
  287. CheckTrue(TypeInfo(WideString)=Value.TypeInfo,'Correct typeinfo');
  288. CheckEquals(Value.IsClass, False,'Class');
  289. CheckEquals(Value.IsObject, False,'Object');
  290. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  291. end;
  292. procedure TTestValueVariant.TestFromVarRecAnsiString;
  293. Var
  294. s : AnsiString;
  295. begin
  296. S:='123';
  297. FVarrec.VType:=vtAnsiString;
  298. FVarrec.VAnsiString:=Pointer(S);
  299. DoFromVarRec;
  300. CheckEquals('123',Value.AsAnsiString,'Value');
  301. CheckTrue(TypeInfo(AnsiString)=Value.TypeInfo,'Correct typeinfo');
  302. CheckEquals(Value.IsClass, False,'Class');
  303. CheckEquals(Value.IsObject, False,'Object');
  304. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  305. end;
  306. procedure TTestValueVariant.TestFromVarRecCurrency;
  307. var
  308. C : Currency;
  309. begin
  310. C:=1.23;
  311. FVarRec.VCurrency:=@C;
  312. FVarRec.vType:=vtCurrency;
  313. DoFromVarRec;
  314. CheckEquals(1.23,Value.AsCurrency,0.01,'Value');
  315. CheckTrue(TypeInfo(Currency)=Value.TypeInfo,'Correct typeinfo');
  316. CheckEquals(Value.IsClass, False,'Class');
  317. CheckEquals(Value.IsObject, False,'Object');
  318. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  319. end;
  320. procedure TTestValueVariant.TestFromVarRecVariant;
  321. var
  322. V : Variant;
  323. begin
  324. V:='1.23';
  325. FVarRec.VVariant:=@V;
  326. FVarRec.vType:=vtVariant;
  327. DoFromVarRec;
  328. CheckEquals(V,String(Value.AsVariant),'Value');
  329. CheckTrue(TypeInfo(Variant)=Value.TypeInfo,'Correct typeinfo');
  330. CheckEquals(Value.IsClass, False,'Class');
  331. CheckEquals(Value.IsObject, False,'Object');
  332. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  333. end;
  334. procedure TTestValueVariant.TestFromVarRecInterface;
  335. Var
  336. U : IInterface;
  337. begin
  338. U:=TMyUNknown.Create;
  339. FVarRec.VInterface:=U;
  340. FVarRec.VType:=vtInterface;
  341. DoFromVarRec;
  342. CheckTrue(U=Value.AsInterface,'Value');
  343. CheckTrue(TypeInfo(IInterface)=Value.TypeInfo,'Correct typeinfo');
  344. CheckEquals(Value.IsClass, False,'Class');
  345. CheckEquals(Value.IsObject, False,'Object');
  346. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  347. end;
  348. procedure TTestValueVariant.TestFromVarRecWideString;
  349. Var
  350. s : WideString;
  351. begin
  352. S:='123';
  353. FVarrec.VType:=vtWideString;
  354. FVarrec.VWideString:=Pointer(S);
  355. DoFromVarRec;
  356. CheckEquals('123',Value.AsUnicodeString,'Value');
  357. CheckTrue(TypeInfo(WideString)=Value.TypeInfo,'Correct typeinfo');
  358. CheckEquals(Value.IsClass, False,'Class');
  359. CheckEquals(Value.IsObject, False,'Object');
  360. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  361. end;
  362. procedure TTestValueVariant.TestFromVarRecInt64;
  363. Var
  364. I : Int64;
  365. begin
  366. I:=Int64(1);
  367. FVarRec.VInt64:=@I;
  368. FVarRec.vType:=vtInt64;
  369. DoFromVarRec;
  370. CheckEquals(1,Value.AsInt64,'Value');
  371. CheckTrue(TypeInfo(Int64)=Value.TypeInfo,'Correct typeinfo');
  372. CheckEquals(Value.IsClass, False,'Class');
  373. CheckEquals(Value.IsObject, False,'Object');
  374. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  375. end;
  376. procedure TTestValueVariant.TestFromVarRecQWord;
  377. Var
  378. Q : QWord;
  379. begin
  380. Q:=1;
  381. FVarRec.VQWord:=@Q;
  382. FVarRec.vType:=vtQWord;
  383. DoFromVarRec;
  384. CheckEquals(1,Value.AsUInt64,'Value');
  385. CheckTrue(TypeInfo(QWord)=Value.TypeInfo,'Correct typeinfo');
  386. CheckEquals(Value.IsClass, False,'Class');
  387. CheckEquals(Value.IsObject, False,'Object');
  388. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  389. end;
  390. procedure TTestValueVariant.TestFromVarRecUnicodeString;
  391. Var
  392. s : UnicodeString;
  393. begin
  394. S:='123';
  395. FVarrec.VType:=vtUnicodeString;
  396. FVarrec.VUnicodeString:=Pointer(S);
  397. DoFromVarRec;
  398. CheckEquals('123',Value.AsUnicodeString,'Value');
  399. CheckTrue(TypeInfo(UnicodeString)=Value.TypeInfo,'Correct typeinfo');
  400. CheckEquals(Value.IsClass, False,'Class');
  401. CheckEquals(Value.IsObject, False,'Object');
  402. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  403. end;
  404. procedure TTestValueVariant.TestFromVariantInteger;
  405. begin
  406. FSrc:=Integer(1);
  407. DoFromVariant;
  408. CheckEquals(1,Value.AsInteger,'Value');
  409. CheckTrue(TypeInfo(Longint)=Value.TypeInfo,'Correct typeinfo');
  410. CheckEquals(Value.IsClass, False,'Class');
  411. CheckEquals(Value.IsObject, False,'Object');
  412. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  413. end;
  414. procedure TTestValueVariant.TestFromVariantBoolean;
  415. begin
  416. FSrc:=True;
  417. DoFromVariant;
  418. CheckEquals(True,Value.AsBoolean,'Value');
  419. CheckTrue(TypeInfo(Boolean)=Value.TypeInfo,'Correct typeinfo');
  420. CheckEquals(Value.IsClass, False,'Class');
  421. CheckEquals(Value.IsObject, False,'Object');
  422. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  423. end;
  424. procedure TTestValueVariant.TestFromVariantSmallInt;
  425. begin
  426. FSrc:=SmallInt(1);
  427. DoFromVariant;
  428. CheckEquals(1,Value.AsInteger,'Value');
  429. CheckTrue(TypeInfo(SmallInt)=Value.TypeInfo,'Correct typeinfo');
  430. CheckEquals(Value.IsClass, False,'Class');
  431. CheckEquals(Value.IsObject, False,'Object');
  432. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  433. end;
  434. procedure TTestValueVariant.TestFromVariantOleStr;
  435. begin
  436. FSrc:=WideString('1.23');
  437. DoFromVariant;
  438. CheckEquals('1.23',Value.AsUnicodeString,'Value');
  439. CheckTrue(TypeInfo(WideString)=Value.TypeInfo,'Correct typeinfo');
  440. CheckEquals(Value.IsClass, False,'Class');
  441. CheckEquals(Value.IsObject, False,'Object');
  442. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  443. end;
  444. procedure TTestValueVariant.TestFromVariantInt64;
  445. begin
  446. FSrc:=Int64(1);
  447. DoFromVariant;
  448. CheckEquals(1,Value.AsInt64,'Value');
  449. CheckTrue(TypeInfo(Int64)=Value.TypeInfo,'Correct typeinfo');
  450. CheckEquals(Value.IsClass, False,'Class');
  451. CheckEquals(Value.IsObject, False,'Object');
  452. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  453. end;
  454. procedure TTestValueVariant.TestFromVariantQWord;
  455. begin
  456. FSrc:=QWord(1);
  457. DoFromVariant;
  458. CheckEquals(1,Value.AsInt64,'Value');
  459. CheckTrue(TypeInfo(QWord)=Value.TypeInfo,'Correct typeinfo');
  460. CheckEquals(Value.IsClass, False,'Class');
  461. CheckEquals(Value.IsObject, False,'Object');
  462. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  463. end;
  464. procedure TTestValueVariant.TestFromVariantShortInt;
  465. begin
  466. FSrc:=ShortInt(1);
  467. DoFromVariant;
  468. CheckEquals(1,Value.AsInteger,'Value');
  469. CheckTrue(TypeInfo(Shortint)=Value.TypeInfo,'Correct typeinfo');
  470. CheckEquals(Value.IsClass, False,'Class');
  471. CheckEquals(Value.IsObject, False,'Object');
  472. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  473. end;
  474. procedure TTestValueVariant.TestFromVariantByte;
  475. begin
  476. FSrc:=Byte(1);
  477. DoFromVariant;
  478. CheckEquals(1,Value.AsInteger,'Value');
  479. CheckTrue(TypeInfo(Byte)=Value.TypeInfo,'Correct typeinfo');
  480. CheckEquals(Value.IsClass, False,'Class');
  481. CheckEquals(Value.IsObject, False,'Object');
  482. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  483. end;
  484. procedure TTestValueVariant.TestFromVariantWord;
  485. begin
  486. FSrc:=Word(1);
  487. DoFromVariant;
  488. CheckEquals(1,Value.AsInteger,'Value');
  489. CheckTrue(TypeInfo(Word)=Value.TypeInfo,'Correct typeinfo');
  490. CheckEquals(Value.IsClass, False,'Class');
  491. CheckEquals(Value.IsObject, False,'Object');
  492. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  493. end;
  494. procedure TTestValueVariant.TestFromVariantLongWord;
  495. begin
  496. FSrc:=Cardinal(1);
  497. DoFromVariant;
  498. CheckEquals(1,Value.AsInteger,'Value');
  499. CheckTrue(TypeInfo(Cardinal)=Value.TypeInfo,'Correct typeinfo');
  500. CheckEquals(Value.IsClass, False,'Class');
  501. CheckEquals(Value.IsObject, False,'Object');
  502. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  503. end;
  504. procedure TTestValueVariant.TestFromVariantSingle;
  505. begin
  506. FSrc:=Single(1.23); // Results in double...
  507. VarCast(FSrc,FSrc,varSingle);
  508. DoFromVariant;
  509. CheckEquals(1.23,Value.AsSingle,0.01,'Value');
  510. CheckTrue(TypeInfo(Single)=Value.TypeInfo,'Correct typeinfo');
  511. CheckEquals(Value.IsClass, False,'Class');
  512. CheckEquals(Value.IsObject, False,'Object');
  513. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  514. end;
  515. procedure TTestValueVariant.TestFromVariantDouble;
  516. begin
  517. FSrc:=Double(1.23);
  518. DoFromVariant;
  519. CheckEquals(1.23,Value.AsDouble,0.01,'Value');
  520. CheckTrue(TypeInfo(Double)=Value.TypeInfo,'Correct typeinfo');
  521. CheckEquals(Value.IsClass, False,'Class');
  522. CheckEquals(Value.IsObject, False,'Object');
  523. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  524. end;
  525. procedure TTestValueVariant.TestFromVariantDate;
  526. Var
  527. D : TDateTime;
  528. begin
  529. D:=Time;
  530. FSrc:=D;
  531. DoFromVariant;
  532. CheckEquals(D,Value.AsDateTime,0.01,'Value');
  533. CheckTrue(TypeInfo(TDateTime)=Value.TypeInfo,'Correct typeinfo');
  534. CheckEquals(Value.IsClass, False,'Class');
  535. CheckEquals(Value.IsObject, False,'Object');
  536. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  537. end;
  538. procedure TTestValueVariant.TestFromVariantDispatch;
  539. Var
  540. U : IDispatch;
  541. begin
  542. U:=TMyUNknown.Create;
  543. FSrc:=U;
  544. DoFromVariant;
  545. CheckTrue(U=Value.AsInterface,'Value');
  546. CheckTrue(TypeInfo(IDispatch)=Value.TypeInfo,'Correct typeinfo');
  547. CheckEquals(Value.IsClass, False,'Class');
  548. CheckEquals(Value.IsObject, False,'Object');
  549. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  550. end;
  551. procedure TTestValueVariant.TestFromVariantError;
  552. begin
  553. TVarData(FSrc).verror:=S_FALSE;
  554. TVarData(FSrc).vtype:=varError;
  555. DoFromVariant;
  556. CheckTrue(S_FALSE=Value.AsError,'Value');
  557. CheckTrue(TypeInfo(HRESULT)=Value.TypeInfo,'Correct typeinfo');
  558. CheckEquals(Value.IsClass, False,'Class');
  559. CheckEquals(Value.IsObject, False,'Object');
  560. CheckEquals(Value.IsOrdinal, True,'Ordinal');
  561. end;
  562. procedure TTestValueVariant.TestFromVariantUnknown;
  563. Var
  564. U : IInterface;
  565. begin
  566. U:=TMyUNknown.Create;
  567. FSrc:=U;
  568. DoFromVariant;
  569. CheckTrue(U=Value.AsInterface,'Value');
  570. CheckTrue(TypeInfo(IInterface)=Value.TypeInfo,'Correct typeinfo');
  571. CheckEquals(Value.IsClass, False,'Class');
  572. CheckEquals(Value.IsObject, False,'Object');
  573. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  574. end;
  575. procedure TTestValueVariant.TestFromVariantCurrency;
  576. begin
  577. FSrc:=Currency(1.23);
  578. DoFromVariant;
  579. CheckEquals(1.23,Value.AsCurrency,0.01,'Value');
  580. CheckTrue(TypeInfo(Currency)=Value.TypeInfo,'Correct typeinfo');
  581. CheckEquals(Value.IsClass, False,'Class');
  582. CheckEquals(Value.IsObject, False,'Object');
  583. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  584. end;
  585. procedure TTestValueVariant.TestFromVariantString;
  586. begin
  587. FSrc:='1.23';
  588. DoFromVariant;
  589. CheckEquals('1.23',Value.AsString,'Value');
  590. CheckTrue(TypeInfo(AnsiString)=Value.TypeInfo,'Correct typeinfo');
  591. CheckEquals(Value.IsClass, False,'Class');
  592. CheckEquals(Value.IsObject, False,'Object');
  593. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  594. end;
  595. procedure TTestValueVariant.TestFromVariantUnicodeString;
  596. begin
  597. TVarData(FSrc).vustring:=Pointer(UnicodeString('1.23'));
  598. TVarData(FSrc).vtype:=varUString;
  599. DoFromVariant;
  600. CheckEquals('1.23',Value.AsString,'Value');
  601. CheckTrue(TypeInfo(UnicodeString)=Value.TypeInfo,'Correct typeinfo');
  602. CheckEquals(Value.IsClass, False,'Class');
  603. CheckEquals(Value.IsObject, False,'Object');
  604. CheckEquals(Value.IsOrdinal, False,'Ordinal');
  605. end;
  606. procedure TTestValueVariant.TestArrayOfConstToTValue;
  607. Var
  608. S:TValueArray;
  609. begin
  610. S:=ArrayOfConstToTValueArray([1,'something',1.23]);
  611. CheckEquals(3,Length(S),'Length');
  612. CheckEquals(1,S[0].AsInteger,'Value 1');
  613. CheckEquals('something',S[1].AsString,'Value 3');
  614. CheckEquals(1.23,S[2].AsDouble,0.01,'Value 3');
  615. end;
  616. { TMyUNknown }
  617. function TMyUNknown.GetTypeInfoCount(out count: longint): HResult; stdcall;
  618. begin
  619. count:=0;
  620. Result:=S_OK;
  621. end;
  622. function TMyUNknown.GetTypeInfo(Index, LocaleID: longint; out TypeInfo
  623. ): HResult; stdcall;
  624. begin
  625. Result:=S_OK;
  626. end;
  627. function TMyUNknown.GetIDsOfNames(const iid: TGUID; names: Pointer; NameCount,
  628. LocaleID: LongInt; DispIDs: Pointer): HResult; stdcall;
  629. begin
  630. Result:=S_OK;
  631. end;
  632. function TMyUNknown.Invoke(DispID: LongInt; const iid: TGUID;
  633. LocaleID: longint; Flags: Word; var params; VarResult, ExcepInfo,
  634. ArgErr: pointer): HResult; stdcall;
  635. begin
  636. Result:=S_OK;
  637. end;
  638. type
  639. TMyLongInt = type LongInt;
  640. procedure TTestValueSimple.TestIsType;
  641. { Delphi does not provide type information for local types :/ }
  642. {type
  643. TMyLongInt = type LongInt;}
  644. var
  645. v: TValue;
  646. l: LongInt;
  647. ml: TMyLongInt;
  648. begin
  649. l := 42;
  650. ml := 42;
  651. TValue.Make(@l, TypeInfo(LongInt), v);
  652. Check(v.IsType(TypeInfo(LongInt)));
  653. Check(not v.IsType(TypeInfo(TMyLongInt)));
  654. Check(not v.IsType(TypeInfo(String)));
  655. Check(v.{$ifdef fpc}specialize{$endif} IsType<LongInt>);
  656. Check(not v.{$ifdef fpc}specialize{$endif} IsType<TMyLongInt>);
  657. Check(not v.{$ifdef fpc}specialize{$endif} IsType<String>);
  658. TValue.Make(@ml, TypeInfo(TMyLongInt), v);
  659. Check(v.IsType(TypeInfo(TMyLongInt)));
  660. Check(not v.IsType(TypeInfo(LongInt)));
  661. Check(not v.IsType(TypeInfo(String)));
  662. Check(v.{$ifdef fpc}specialize{$endif} IsType<TMyLongInt>);
  663. Check(not v.{$ifdef fpc}specialize{$endif} IsType<LongInt>);
  664. Check(not v.{$ifdef fpc}specialize{$endif} IsType<String>);
  665. end;
  666. procedure TTestValueSimple.TestMakeNil;
  667. var
  668. value: TValue;
  669. begin
  670. TValue.Make(Nil, Nil, value);
  671. CheckTrue(value.Kind = tkUnknown);
  672. CheckTrue(value.IsEmpty);
  673. CheckTrue(value.IsObject);
  674. CheckTrue(value.IsClass);
  675. CheckTrue(value.IsOrdinal);
  676. CheckFalse(value.IsArray);
  677. CheckTrue(value.AsObject = Nil);
  678. CheckTrue(value.AsClass = Nil);
  679. CheckTrue(value.AsInterface = Nil);
  680. CheckEquals(0, value.AsOrdinal);
  681. TValue.Make(Nil, TypeInfo(TObject), value);
  682. CheckTrue(value.IsEmpty);
  683. CheckTrue(value.IsObject);
  684. CheckTrue(value.IsClass);
  685. CheckTrue(value.IsOrdinal);
  686. CheckFalse(value.IsArray);
  687. CheckTrue(value.AsObject=Nil);
  688. CheckTrue(value.AsClass=Nil);
  689. CheckTrue(value.AsInterface=Nil);
  690. CheckEquals(0, value.AsOrdinal);
  691. TValue.Make(Nil, TypeInfo(TClass), value);
  692. CheckTrue(value.IsEmpty);
  693. CheckTrue(value.IsClass);
  694. CheckTrue(value.IsOrdinal);
  695. CheckFalse(value.IsArray);
  696. CheckTrue(value.AsObject=Nil);
  697. CheckTrue(value.AsClass=Nil);
  698. CheckTrue(value.AsInterface=Nil);
  699. CheckEquals(0, value.AsOrdinal);
  700. TValue.Make(Nil, TypeInfo(LongInt), value);
  701. CheckTrue(value.IsOrdinal);
  702. CheckFalse(value.IsEmpty);
  703. CheckFalse(value.IsClass);
  704. CheckFalse(value.IsObject);
  705. CheckFalse(value.IsArray);
  706. CheckEquals(0, value.AsOrdinal);
  707. CheckEquals(0, value.AsInteger);
  708. CheckEquals(0, value.AsInt64);
  709. CheckEquals(0, value.AsUInt64);
  710. TValue.Make(Nil, TypeInfo(String), value);
  711. CheckFalse(value.IsEmpty);
  712. CheckFalse(value.IsObject);
  713. CheckFalse(value.IsClass);
  714. CheckFalse(value.IsArray);
  715. CheckEquals('', value.AsString);
  716. end;
  717. procedure TTestValueSimple.TestMakeObject;
  718. var
  719. AValue: TValue;
  720. ATestClass: TTestValueClass;
  721. begin
  722. ATestClass := TTestValueClass.Create;
  723. ATestClass.AInteger := 54329;
  724. TValue.Make(@ATestClass, TypeInfo(TTestValueClass),AValue);
  725. CheckEquals(AValue.IsClass, False);
  726. CheckEquals(AValue.IsObject, True);
  727. Check(AValue.AsObject=ATestClass);
  728. Check(PPointer(AValue.GetReferenceToRawData)^ = Pointer(ATestClass));
  729. CheckEquals(TTestValueClass(AValue.AsObject).AInteger, 54329);
  730. ATestClass.Free;
  731. end;
  732. procedure TTestValueArray.TestMakeArrayDynamic;
  733. var
  734. arr: TArrayOfLongintDyn;
  735. value: TValue;
  736. begin
  737. SetLength(arr, 2);
  738. arr[0] := 42;
  739. arr[1] := 21;
  740. TValue.Make(@arr, TypeInfo(TArrayOfLongintDyn), value);
  741. CheckEquals(value.IsArray, True);
  742. CheckEquals(value.IsObject, False);
  743. CheckEquals(value.IsOrdinal, False);
  744. CheckEquals(value.IsClass, False);
  745. CheckEquals(value.GetArrayLength, 2);
  746. CheckEquals(value.GetArrayElement(0).AsInteger, 42);
  747. CheckEquals(value.GetArrayElement(1).AsInteger, 21);
  748. Check(PPointer(value.GetReferenceToRawData)^ = Pointer(arr));
  749. value.SetArrayElement(0, Integer(84));
  750. CheckEquals(arr[0], 84);
  751. end;
  752. procedure TTestValueArray.TestMakeArrayStatic;
  753. type
  754. TArrStat = array[0..1] of LongInt;
  755. TArrStat2D = array[0..1, 0..1] of LongInt;
  756. var
  757. arr: TArrStat;
  758. arr2D: TArrStat2D;
  759. value: TValue;
  760. begin
  761. arr[0] := 42;
  762. arr[1] := 21;
  763. TValue.Make(@arr, TypeInfo(TArrStat), value);
  764. CheckEquals(value.IsArray, True);
  765. CheckEquals(value.IsObject, False);
  766. CheckEquals(value.IsOrdinal, False);
  767. CheckEquals(value.IsClass, False);
  768. CheckEquals(value.GetArrayLength, 2);
  769. CheckEquals(value.GetArrayElement(0).AsInteger, 42);
  770. CheckEquals(value.GetArrayElement(1).AsInteger, 21);
  771. value.SetArrayElement(0, integer(84));
  772. { since this is a static array the original array isn't touched! }
  773. CheckEquals(arr[0], 42);
  774. arr2D[0, 0] := 42;
  775. arr2D[0, 1] := 21;
  776. arr2D[1, 0] := 84;
  777. arr2D[1, 1] := 63;
  778. TValue.Make(@arr2D, TypeInfo(TArrStat2D), value);
  779. CheckEquals(value.IsArray, True);
  780. CheckEquals(value.GetArrayLength, 4);
  781. CheckEquals(value.GetArrayElement(0).AsInteger, 42);
  782. CheckEquals(value.GetArrayElement(1).AsInteger, 21);
  783. CheckEquals(value.GetArrayElement(2).AsInteger, 84);
  784. CheckEquals(value.GetArrayElement(3).AsInteger, 63);
  785. end;
  786. {$ifdef fpc}
  787. procedure TTestValueArray.TestMakeArrayOpen;
  788. procedure TestOpenArrayValueCopy(aArr: array of LongInt);
  789. var
  790. value: TValue;
  791. begin
  792. TValue.MakeOpenArray(@aArr[0], Length(aArr), PTypeInfo(TypeInfo(aArr)), value);
  793. CheckEquals(value.IsArray, True);
  794. CheckEquals(value.IsOpenArray, True);
  795. CheckEquals(value.IsObject, False);
  796. CheckEquals(value.IsOrdinal, False);
  797. CheckEquals(value.IsClass, False);
  798. CheckEquals(value.GetArrayLength, 2);
  799. CheckEquals(value.GetArrayElement(0).AsInteger, 42);
  800. CheckEquals(value.GetArrayElement(1).AsInteger, 21);
  801. value.SetArrayElement(0, Integer(84));
  802. { since this is an open array the original array is modified! }
  803. CheckEquals(aArr[0], 84);
  804. end;
  805. procedure TestOpenArrayValueVar(var aArr: array of LongInt);
  806. var
  807. value: TValue;
  808. begin
  809. TValue.MakeOpenArray(@aArr[0], Length(aArr), PTypeInfo(TypeInfo(aArr)), value);
  810. CheckEquals(value.IsArray, True);
  811. CheckEquals(value.IsOpenArray, True);
  812. CheckEquals(value.IsObject, False);
  813. CheckEquals(value.IsOrdinal, False);
  814. CheckEquals(value.IsClass, False);
  815. CheckEquals(value.GetArrayLength, 2);
  816. CheckEquals(value.GetArrayElement(0).AsInteger, 42);
  817. CheckEquals(value.GetArrayElement(1).AsInteger, 21);
  818. value.SetArrayElement(0, 84);
  819. { since this is an open array the original array is modified! }
  820. CheckEquals(aArr[0], 84);
  821. end;
  822. procedure TestOpenArrayValueOut(var aArr: array of LongInt);
  823. var
  824. value: TValue;
  825. begin
  826. TValue.MakeOpenArray(@aArr[0], Length(aArr), PTypeInfo(TypeInfo(aArr)), value);
  827. CheckEquals(value.IsArray, True);
  828. CheckEquals(value.IsOpenArray, True);
  829. CheckEquals(value.IsObject, False);
  830. CheckEquals(value.IsOrdinal, False);
  831. CheckEquals(value.IsClass, False);
  832. CheckEquals(value.GetArrayLength, 2);
  833. CheckEquals(value.GetArrayElement(0).AsInteger, 42);
  834. CheckEquals(value.GetArrayElement(1).AsInteger, 21);
  835. value.SetArrayElement(0, 84);
  836. value.SetArrayElement(1, 128);
  837. { since this is an open array the original array is modified! }
  838. CheckEquals(aArr[0], 84);
  839. CheckEquals(aArr[1], 128);
  840. CheckEquals(value.GetArrayElement(0).AsInteger, 84);
  841. CheckEquals(value.GetArrayElement(1).AsInteger, 128);
  842. end;
  843. var
  844. arr: array of LongInt;
  845. begin
  846. TestOpenArrayValueCopy([42, 21]);
  847. arr := [42, 21];
  848. TestOpenArrayValueVar(arr);
  849. CheckEquals(arr[0], 84);
  850. CheckEquals(arr[1], 21);
  851. arr := [42, 21];
  852. TestOpenArrayValueOut(arr);
  853. CheckEquals(arr[0], 84);
  854. CheckEquals(arr[1], 128);
  855. end;
  856. {$endif}
  857. procedure TTestValueSimple.TestMakeSingle;
  858. var
  859. fs: Single;
  860. v: TValue;
  861. hadexcept: Boolean;
  862. begin
  863. fs := 3.14;
  864. TValue.Make(@fs, TypeInfo(Single), v);
  865. CheckEquals(v.IsClass, False);
  866. CheckEquals(v.IsObject, False);
  867. CheckEquals(v.IsOrdinal, False);
  868. Check(v.AsExtended=fs);
  869. Check(v.GetReferenceToRawData <> @fs);
  870. try
  871. hadexcept := False;
  872. v.AsInt64;
  873. except
  874. hadexcept := True;
  875. end;
  876. CheckTrue(hadexcept, 'No signed type conversion exception');
  877. try
  878. hadexcept := False;
  879. v.AsUInt64;
  880. except
  881. hadexcept := True;
  882. end;
  883. CheckTrue(hadexcept, 'No unsigned type conversion exception');
  884. end;
  885. procedure TTestValueSimple.TestMakeDouble;
  886. var
  887. fd: Double;
  888. v: TValue;
  889. hadexcept: Boolean;
  890. begin
  891. fd := 3.14;
  892. TValue.Make(@fd, TypeInfo(Double), v);
  893. CheckEquals(v.IsClass, False);
  894. CheckEquals(v.IsObject, False);
  895. CheckEquals(v.IsOrdinal, False);
  896. Check(v.AsExtended=fd);
  897. Check(v.GetReferenceToRawData <> @fd);
  898. try
  899. hadexcept := False;
  900. v.AsInt64;
  901. except
  902. hadexcept := True;
  903. end;
  904. CheckTrue(hadexcept, 'No signed type conversion exception');
  905. try
  906. hadexcept := False;
  907. v.AsUInt64;
  908. except
  909. hadexcept := True;
  910. end;
  911. CheckTrue(hadexcept, 'No unsigned type conversion exception');
  912. end;
  913. procedure TTestValueSimple.TestMakeExtended;
  914. var
  915. fe: Extended;
  916. v: TValue;
  917. hadexcept: Boolean;
  918. begin
  919. fe := 3.14;
  920. TValue.Make(@fe, TypeInfo(Extended), v);
  921. CheckEquals(v.IsClass, False);
  922. CheckEquals(v.IsObject, False);
  923. CheckEquals(v.IsOrdinal, False);
  924. Check(v.AsExtended=fe);
  925. Check(v.GetReferenceToRawData <> @fe);
  926. try
  927. hadexcept := False;
  928. v.AsInt64;
  929. except
  930. hadexcept := True;
  931. end;
  932. CheckTrue(hadexcept, 'No signed type conversion exception');
  933. try
  934. hadexcept := False;
  935. v.AsUInt64;
  936. except
  937. hadexcept := True;
  938. end;
  939. CheckTrue(hadexcept, 'No unsigned type conversion exception');
  940. end;
  941. procedure TTestValueSimple.TestMakeCurrency;
  942. var
  943. fcu: Currency;
  944. v: TValue;
  945. hadexcept: Boolean;
  946. begin
  947. fcu := 3.14;
  948. TValue.Make(@fcu, TypeInfo(Currency), v);
  949. CheckEquals(v.IsClass, False);
  950. CheckEquals(v.IsObject, False);
  951. CheckEquals(v.IsOrdinal, False);
  952. Check(v.AsExtended=Extended(fcu));
  953. Check(v.AsCurrency=fcu);
  954. Check(v.GetReferenceToRawData <> @fcu);
  955. try
  956. hadexcept := False;
  957. v.AsInt64;
  958. except
  959. hadexcept := True;
  960. end;
  961. CheckTrue(hadexcept, 'No signed type conversion exception');
  962. try
  963. hadexcept := False;
  964. v.AsUInt64;
  965. except
  966. hadexcept := True;
  967. end;
  968. CheckTrue(hadexcept, 'No unsigned type conversion exception');
  969. end;
  970. procedure TTestValueSimple.TestMakeComp;
  971. var
  972. fco: Comp;
  973. v: TValue;
  974. hadexcept: Boolean;
  975. begin
  976. fco := 314;
  977. TValue.Make(@fco, TypeInfo(Comp), v);
  978. if v.Kind <> tkFloat then
  979. Exit;
  980. CheckEquals(v.IsClass, False);
  981. CheckEquals(v.IsObject, False);
  982. CheckEquals(v.IsOrdinal, False);
  983. Check(v.AsExtended=Extended(fco));
  984. Check(v.GetReferenceToRawData <> @fco);
  985. try
  986. hadexcept := False;
  987. CheckEquals(v.AsInt64, 314);
  988. except
  989. hadexcept := True;
  990. end;
  991. CheckFalse(hadexcept, 'Had signed type conversion exception');
  992. try
  993. hadexcept := False;
  994. CheckEquals(v.AsUInt64, 314);
  995. except
  996. hadexcept := True;
  997. end;
  998. CheckFalse(hadexcept, 'Had unsigned type conversion exception');
  999. end;
  1000. procedure TTestValueSimple.TestMakeEnum;
  1001. var
  1002. e: TTestEnum;
  1003. v: TValue;
  1004. begin
  1005. e := te1;
  1006. TValue.Make(@e, TypeInfo(TTestEnum), v);
  1007. Check(not v.IsClass);
  1008. Check(not v.IsArray);
  1009. Check(not v.IsEmpty);
  1010. {$ifdef fpc}
  1011. Check(not v.IsOpenArray);
  1012. {$endif}
  1013. Check(not v.IsObject);
  1014. Check(v.IsOrdinal);
  1015. Check(v.GetReferenceToRawData <> @e);
  1016. Check(TTestEnum(v.AsOrdinal) = te1);
  1017. end;
  1018. procedure TTestValueSimple.TestMakeAnsiChar;
  1019. var
  1020. c: AnsiChar;
  1021. v: TValue;
  1022. begin
  1023. c := #20;
  1024. TValue.Make(@c, TypeInfo(AnsiChar), v);
  1025. Check(not v.IsClass);
  1026. Check(not v.IsArray);
  1027. Check(not v.IsEmpty);
  1028. {$ifdef fpc}
  1029. Check(not v.IsOpenArray);
  1030. {$endif}
  1031. Check(not v.IsObject);
  1032. Check(v.IsOrdinal);
  1033. Check(v.GetReferenceToRawData <> @c);
  1034. Check(AnsiChar(v.AsOrdinal) = #20);
  1035. Check(v.AsAnsiChar = #20);
  1036. end;
  1037. procedure TTestValueSimple.TestMakeWideChar;
  1038. var
  1039. c: WideChar;
  1040. v: TValue;
  1041. begin
  1042. c := #$1234;
  1043. TValue.Make(@c, TypeInfo(WideChar), v);
  1044. Check(not v.IsClass);
  1045. Check(not v.IsArray);
  1046. Check(not v.IsEmpty);
  1047. {$ifdef fpc}
  1048. Check(not v.IsOpenArray);
  1049. {$endif}
  1050. Check(not v.IsObject);
  1051. Check(v.IsOrdinal);
  1052. Check(v.GetReferenceToRawData <> @c);
  1053. Check(WideChar(v.AsOrdinal) = #$1234);
  1054. Check(v.AsWideChar = #$1234);
  1055. end;
  1056. procedure TTestValueSimple.TestMakeNativeInt;
  1057. var
  1058. fni: NativeInt;
  1059. s: AnsiString;
  1060. v: TValue;
  1061. o: TObject;
  1062. begin
  1063. fni := 2021;
  1064. TValue.Make(fni, TypeInfo(LongInt), v);
  1065. CheckEquals(v.IsClass, False);
  1066. CheckEquals(v.IsObject, False);
  1067. CheckEquals(v.IsOrdinal, True);
  1068. Check(NativeInt(v.GetReferenceToRawData) <> fni);
  1069. CheckEquals(v.AsOrdinal, 2021);
  1070. s := 'Hello World';
  1071. TValue.Make(NativeInt(s), TypeInfo(AnsiString), v);
  1072. CheckEquals(v.IsClass, False);
  1073. CheckEquals(v.IsObject, False);
  1074. CheckEquals(v.IsOrdinal, False);
  1075. CheckEquals(v.AsString, s);
  1076. o := TObject.Create;
  1077. TValue.Make(NativeInt(o), TypeInfo(TObject), v);
  1078. CheckEquals(v.IsClass, False);
  1079. CheckEquals(v.IsObject, True);
  1080. CheckEquals(v.IsOrdinal, False);
  1081. Check(PPointer(v.GetReferenceToRawData)^ = Pointer(o));
  1082. Check(v.AsObject = o);
  1083. o.Free;
  1084. end;
  1085. procedure TTestValueSimple.TestMakeVariant;
  1086. var
  1087. vv : Variant;
  1088. vd : TVarData;
  1089. v: TValue;
  1090. begin
  1091. vv := 'Some String';
  1092. TValue.Make(@vv, TypeInfo(Variant), v);
  1093. Check(not v.IsClass);
  1094. Check(not v.IsArray);
  1095. Check(not v.IsEmpty);
  1096. {$ifdef fpc}
  1097. Check(not v.IsOpenArray);
  1098. {$endif}
  1099. Check(not v.IsObject);
  1100. Check(not v.IsOrdinal);
  1101. Check(v.GetReferenceToRawData <> @vv);
  1102. Check(String(v.AsVariant) = 'Some String');
  1103. end;
  1104. procedure TTestValueArray.TestMakeFromArray;
  1105. var
  1106. arr, subarr: array of TValue;
  1107. v, varr: TValue;
  1108. ti: PTypeInfo;
  1109. i: LongInt;
  1110. begin
  1111. SetLength(arr, 3 * 4);
  1112. for i := 0 to High(arr) do
  1113. TValue.{$ifdef fpc}specialize{$endif} Make<LongInt>(i + 1, arr[i]);
  1114. ti := PTypeInfo(TypeInfo(LongInt));
  1115. v := TValue.FromArray(TypeInfo(TArrayOfLongintDyn), arr);
  1116. Check(not v.IsEmpty, 'Array is empty');
  1117. Check(v.IsArray, 'Value is not an array');
  1118. CheckEquals(Length(arr), v.GetArrayLength, 'Array length does not match');
  1119. for i := 0 to High(arr) do begin
  1120. varr := v.GetArrayElement(i);
  1121. Check(varr.TypeInfo = ti, 'Type info of array element does not match');
  1122. Check(varr.IsOrdinal, 'Array element is not an ordinal');
  1123. Check(varr.AsInteger = arr[i].AsInteger, 'Value of array element does not match');
  1124. end;
  1125. subarr := Copy(arr, 0, 4);
  1126. v := TValue.FromArray(TypeInfo(TArrayOfLongintStatic), subarr);
  1127. Check(not v.IsEmpty, 'Array is empty');
  1128. Check(v.IsArray, 'Value is not an array');
  1129. CheckEquals(Length(subarr), v.GetArrayLength, 'Array length does not match');
  1130. for i := 0 to High(subarr) do begin
  1131. varr := v.GetArrayElement(i);
  1132. Check(varr.TypeInfo = ti, 'Type info of array element does not match');
  1133. Check(varr.IsOrdinal, 'Array element is not an ordinal');
  1134. Check(varr.AsInteger = subarr[i].AsInteger, 'Value of array element does not match');
  1135. end;
  1136. v := TValue.FromArray(TypeInfo(TArrayOfLongint2DStatic), arr);
  1137. Check(not v.IsEmpty, 'Array is empty');
  1138. Check(v.IsArray, 'Value is not an array');
  1139. CheckEquals(Length(arr), v.GetArrayLength, 'Array length does not match');
  1140. for i := 0 to High(arr) do begin
  1141. varr := v.GetArrayElement(i);
  1142. Check(varr.TypeInfo = ti, 'Type info of array element does not match');
  1143. Check(varr.IsOrdinal, 'Array element is not an ordinal');
  1144. Check(varr.AsInteger = arr[i].AsInteger, 'Value of array element does not match');
  1145. end;
  1146. end;
  1147. procedure TTestValueSimple.TestMakeGenericNil;
  1148. var
  1149. value: TValue;
  1150. begin
  1151. TValue.{$ifdef fpc}specialize{$endif} Make<TObject>(Nil, value);
  1152. CheckTrue(value.IsEmpty);
  1153. CheckTrue(value.IsObject);
  1154. CheckTrue(value.IsClass);
  1155. CheckTrue(value.IsOrdinal);
  1156. CheckFalse(value.IsArray);
  1157. CheckTrue(value.AsObject=Nil);
  1158. CheckTrue(value.AsClass=Nil);
  1159. CheckTrue(value.AsInterface=Nil);
  1160. CheckEquals(0, value.AsOrdinal);
  1161. TValue.{$ifdef fpc}specialize{$endif} Make<TClass>(Nil, value);
  1162. CheckTrue(value.IsEmpty);
  1163. CheckTrue(value.IsClass);
  1164. CheckTrue(value.IsOrdinal);
  1165. CheckFalse(value.IsArray);
  1166. CheckTrue(value.AsObject=Nil);
  1167. CheckTrue(value.AsClass=Nil);
  1168. CheckTrue(value.AsInterface=Nil);
  1169. CheckEquals(0, value.AsOrdinal);
  1170. end;
  1171. procedure TTestValueSimple.TestMakeGenericLongInt;
  1172. var
  1173. value: TValue;
  1174. begin
  1175. TValue.{$ifdef fpc}specialize{$endif} Make<LongInt>(0, value);
  1176. CheckTrue(value.IsOrdinal);
  1177. CheckFalse(value.IsEmpty);
  1178. CheckFalse(value.IsClass);
  1179. CheckFalse(value.IsObject);
  1180. CheckFalse(value.IsArray);
  1181. CheckEquals(0, value.AsOrdinal);
  1182. CheckEquals(0, value.AsInteger);
  1183. CheckEquals(0, value.AsInt64);
  1184. CheckEquals(0, value.AsUInt64);
  1185. end;
  1186. procedure TTestValueSimple.TestMakeGenericString;
  1187. var
  1188. value: TValue;
  1189. begin
  1190. TValue.{$ifdef fpc}specialize{$endif} Make<String>('test', value);
  1191. CheckFalse(value.IsEmpty);
  1192. CheckFalse(value.IsObject);
  1193. CheckFalse(value.IsClass);
  1194. CheckFalse(value.IsArray);
  1195. CheckEquals('test', value.AsString);
  1196. end;
  1197. procedure TTestValueSimple.TestMakeGenericObject;
  1198. var
  1199. value: TValue;
  1200. TestClass: TTestValueClass;
  1201. begin
  1202. TestClass := TTestValueClass.Create;
  1203. TestClass.AInteger := 54329;
  1204. TValue.{$ifdef fpc}specialize{$endif} Make<TTestValueClass>(TestClass, value);
  1205. CheckEquals(value.IsClass, False);
  1206. CheckEquals(value.IsObject, True);
  1207. Check(value.AsObject=TestClass);
  1208. Check(PPointer(value.GetReferenceToRawData)^ = Pointer(TestClass));
  1209. CheckEquals(TTestValueClass(value.AsObject).AInteger, 54329);
  1210. TestClass.Free;
  1211. end;
  1212. procedure TTestValueSimple.TestMakeGenericDouble;
  1213. var
  1214. fd: Double;
  1215. v: TValue;
  1216. hadexcept: Boolean;
  1217. begin
  1218. fd := 3.14;
  1219. TValue.{$ifdef fpc}specialize{$endif} Make<Double>(fd, v);
  1220. CheckEquals(v.IsClass, False);
  1221. CheckEquals(v.IsObject, False);
  1222. CheckEquals(v.IsOrdinal, False);
  1223. Check(v.AsExtended=fd);
  1224. Check(v.GetReferenceToRawData <> @fd);
  1225. try
  1226. hadexcept := False;
  1227. v.AsInt64;
  1228. except
  1229. hadexcept := True;
  1230. end;
  1231. CheckTrue(hadexcept, 'No signed type conversion exception');
  1232. try
  1233. hadexcept := False;
  1234. v.AsUInt64;
  1235. except
  1236. hadexcept := True;
  1237. end;
  1238. CheckTrue(hadexcept, 'No unsigned type conversion exception');
  1239. end;
  1240. procedure TTestValueSimple.TestMakeGenericAnsiChar;
  1241. var
  1242. c: AnsiChar;
  1243. v: TValue;
  1244. begin
  1245. c := #20;
  1246. TValue.{$ifdef fpc}specialize{$endif} Make<AnsiChar>(c, v);
  1247. Check(not v.IsClass);
  1248. Check(not v.IsArray);
  1249. Check(not v.IsEmpty);
  1250. {$ifdef fpc}
  1251. Check(not v.IsOpenArray);
  1252. {$endif}
  1253. Check(not v.IsObject);
  1254. Check(v.IsOrdinal);
  1255. Check(v.GetReferenceToRawData <> @c);
  1256. Check(AnsiChar(v.AsOrdinal) = #20);
  1257. Check(v.AsAnsiChar = #20);
  1258. end;
  1259. procedure TTestValueSimple.TestMakeGenericWideChar;
  1260. var
  1261. c: WideChar;
  1262. v: TValue;
  1263. begin
  1264. c := #$1234;
  1265. TValue.{$ifdef fpc}specialize{$endif} Make<WideChar>(c, v);
  1266. Check(not v.IsClass);
  1267. Check(not v.IsArray);
  1268. Check(not v.IsEmpty);
  1269. {$ifdef fpc}
  1270. Check(not v.IsOpenArray);
  1271. {$endif}
  1272. Check(not v.IsObject);
  1273. Check(v.IsOrdinal);
  1274. Check(v.GetReferenceToRawData <> @c);
  1275. Check(WideChar(v.AsOrdinal) = #$1234);
  1276. Check(v.AsWideChar = #$1234);
  1277. end;
  1278. procedure TTestValueSimple.MakeFromOrdinalTObject;
  1279. begin
  1280. TValue.FromOrdinal(TypeInfo(TObject), 42);
  1281. end;
  1282. procedure TTestValueSimple.MakeFromOrdinalSet;
  1283. begin
  1284. TValue.FromOrdinal(TypeInfo(TTestSet), 42);
  1285. end;
  1286. procedure TTestValueSimple.MakeFromOrdinalString;
  1287. begin
  1288. TValue.FromOrdinal(TypeInfo(AnsiString), 42);
  1289. end;
  1290. procedure TTestValueSimple.MakeFromOrdinalNil;
  1291. begin
  1292. TValue.FromOrdinal(Nil, 42);
  1293. end;
  1294. procedure TTestValueSimple.TestFromOrdinal;
  1295. var
  1296. v: TValue;
  1297. begin
  1298. v := TValue.FromOrdinal(TypeInfo(LongInt), 42);
  1299. Check(v.IsOrdinal);
  1300. CheckEquals(v.AsOrdinal, 42);
  1301. v := TValue.FromOrdinal(TypeInfo(Boolean), Ord(True));
  1302. Check(v.IsOrdinal);
  1303. CheckEquals(v.AsOrdinal, Ord(True));
  1304. v := TValue.FromOrdinal(TypeInfo(Int64), $1234123412341234);
  1305. Check(v.IsOrdinal);
  1306. CheckEquals(v.AsOrdinal, $1234123412341234);
  1307. v := TValue.FromOrdinal(TypeInfo(QWord), $1234123412341234);
  1308. Check(v.IsOrdinal);
  1309. CheckEquals(v.AsOrdinal, $1234123412341234);
  1310. v := TValue.FromOrdinal(TypeInfo(LongBool), Ord(True));
  1311. Check(v.IsOrdinal);
  1312. CheckEquals(v.AsOrdinal, Ord(True));
  1313. v := TValue.FromOrdinal(TypeInfo(TTestEnum), Ord(te1));
  1314. Check(v.IsOrdinal);
  1315. CheckEquals(v.AsOrdinal, Ord(te1));
  1316. v := TValue.FromOrdinal(TypeInfo(AnsiChar), Ord(#20));
  1317. Check(v.IsOrdinal);
  1318. CheckEquals(v.AsOrdinal, Ord(#20));
  1319. v := TValue.FromOrdinal(TypeInfo(WideChar), Ord(#$1234));
  1320. Check(v.IsOrdinal);
  1321. CheckEquals(v.AsOrdinal, Ord(#$1234));
  1322. CheckException({$ifdef fpc}@{$endif}MakeFromOrdinalNil, EInvalidCast);
  1323. CheckException({$ifdef fpc}@{$endif}MakeFromOrdinalTObject, EInvalidCast);
  1324. CheckException({$ifdef fpc}@{$endif}MakeFromOrdinalSet, EInvalidCast);
  1325. CheckException({$ifdef fpc}@{$endif}MakeFromOrdinalString, EInvalidCast);
  1326. end;
  1327. procedure TTestValueSimple.TestTryCastUnicodeString;
  1328. var
  1329. S: string;
  1330. V, V2: TValue;
  1331. begin
  1332. S := 'str';
  1333. V := S;
  1334. CheckTrue(V.TryCast(TypeInfo(UnicodeString), V2),'Cast OK');
  1335. end;
  1336. type
  1337. TMyManagedRecord = record
  1338. I: IntPtr;
  1339. Intf: IUnknown;
  1340. end;
  1341. TTestIntfObject = class(TInterfacedObject);
  1342. procedure TTestValueSimple.TestMakeManagedRecord;
  1343. function GetValue: TValue;
  1344. var
  1345. R: TMyManagedRecord;
  1346. begin
  1347. R.Intf := TTestIntfObject.Create;
  1348. Result := TValue.{$ifdef fpc}specialize{$endif} From<TMyManagedRecord>(R);
  1349. end;
  1350. var
  1351. P: Pointer;
  1352. R: TMyManagedRecord;
  1353. V: TValue;
  1354. begin
  1355. V := GetValue();
  1356. P := AllocMem(64);
  1357. R := V.{$ifdef fpc}specialize{$endif} AsType<TMyManagedRecord>;
  1358. Check((R.Intf as TTestIntfObject).RefCount >= 2, 'RefCount should be >= 2. One ref in in V, and another one is in R');
  1359. FreeMem(P);
  1360. end;
  1361. procedure TTestValueSimple.TestMakeStaticArrayOfManagedRecord;
  1362. type
  1363. TArrayOfRec = array[0..0] of TMyManagedRecord;
  1364. function GetValue: TValue;
  1365. var
  1366. Arr: TArrayOfRec;
  1367. begin
  1368. Arr[0].Intf := TTestIntfObject.Create;
  1369. Result := TValue.{$ifdef fpc}specialize{$endif} From<TArrayOfRec>(Arr);
  1370. end;
  1371. var
  1372. P: Pointer;
  1373. Arr: TArrayOfRec;
  1374. V: TValue;
  1375. begin
  1376. V := GetValue();
  1377. P := AllocMem(64);
  1378. Arr := V.{$ifdef fpc}specialize{$endif} AsType<TArrayOfRec>;
  1379. Check((Arr[0].Intf as TTestIntfObject).RefCount >= 2, 'RefCount should be >= 2. One ref in in V, and another one is in Arr');
  1380. FreeMem(P);
  1381. end;
  1382. { TTestValueArray }
  1383. {$ifdef fpc}
  1384. procedure TTestValueArray.TestOpenArrayToDyn;
  1385. procedure OpenArrayProc(aArr: array of LongInt);
  1386. var
  1387. value: TValue;
  1388. begin
  1389. {$ifndef InLazIDE}
  1390. value := specialize OpenArrayToDynArrayValue<LongInt>(aArr);
  1391. {$endif}
  1392. CheckEquals(value.IsArray, True);
  1393. CheckEquals(value.IsOpenArray, False);
  1394. CheckEquals(value.IsObject, False);
  1395. CheckEquals(value.IsOrdinal, False);
  1396. CheckEquals(value.IsClass, False);
  1397. CheckEquals(value.GetArrayLength, 2);
  1398. CheckEquals(value.GetArrayElement(0).AsInteger, 42);
  1399. CheckEquals(value.GetArrayElement(1).AsInteger, 84);
  1400. value.SetArrayElement(0, Integer(21));
  1401. { since this is a copy the original array is not modified! }
  1402. CheckEquals(aArr[0], 42);
  1403. end;
  1404. begin
  1405. OpenArrayProc([42, 84]);
  1406. end;
  1407. {$endif}
  1408. procedure TTestValueGeneral.TestDataSize;
  1409. var
  1410. u8: UInt8;
  1411. u16: UInt16;
  1412. u32: UInt32;
  1413. u64: UInt64;
  1414. s8: Int8;
  1415. s16: Int16;
  1416. s32: Int32;
  1417. s64: Int64;
  1418. f32: Single;
  1419. f64: Double;
  1420. {$ifdef FPC_HAS_TYPE_EXTENDED}
  1421. f80: Extended;
  1422. {$endif}
  1423. fco: Comp;
  1424. fcu: Currency;
  1425. ss: ShortString;
  1426. sa: AnsiString;
  1427. su: UnicodeString;
  1428. sw: WideString;
  1429. o: TObject;
  1430. c: TClass;
  1431. i: IInterface;
  1432. ad: TArrayOfLongintDyn;
  1433. _as: TArrayOfLongintStatic;
  1434. b8: Boolean;
  1435. {$ifdef fpc}
  1436. b16: Boolean16;
  1437. b32: Boolean32;
  1438. b64: Boolean64;
  1439. {$endif}
  1440. bl8: ByteBool;
  1441. bl16: WordBool;
  1442. bl32: LongBool;
  1443. {$ifdef fpc}
  1444. bl64: QWordBool;
  1445. {$endif}
  1446. e: TTestEnum;
  1447. s: TTestSet;
  1448. t: TTestRecord;
  1449. p: Pointer;
  1450. proc: TTestProc;
  1451. method: TTestMethod;
  1452. value: TValue;
  1453. begin
  1454. u8:=245;
  1455. TValue.Make(@u8, TypeInfo(UInt8), value);
  1456. CheckEquals(1, value.DataSize, 'Size of UInt8 differs');
  1457. u16:=789;
  1458. TValue.Make(@u16, TypeInfo(UInt16), value);
  1459. CheckEquals(2, value.DataSize, 'Size of UInt16 differs');
  1460. u32:=568789;
  1461. TValue.Make(@u32, TypeInfo(UInt32), value);
  1462. CheckEquals(4, value.DataSize, 'Size of UInt32 differs');
  1463. u64:=$abdcefadbcef;
  1464. TValue.Make(@u64, TypeInfo(UInt64), value);
  1465. CheckEquals(8, value.DataSize, 'Size of UInt64 differs');
  1466. s8:=-32;
  1467. TValue.Make(@s8, TypeInfo(Int8), value);
  1468. CheckEquals(1, value.DataSize, 'Size of Int8 differs');
  1469. s16:=-5345;
  1470. TValue.Make(@s16, TypeInfo(Int16), value);
  1471. CheckEquals(2, value.DataSize, 'Size of Int16 differs');
  1472. s32:=-234567;
  1473. TValue.Make(@s32, TypeInfo(Int32), value);
  1474. CheckEquals(4, value.DataSize, 'Size of Int32 differs');
  1475. s64:=23456789012;
  1476. TValue.Make(@s64, TypeInfo(Int64), value);
  1477. CheckEquals(8, value.DataSize, 'Size of Int64 differs');
  1478. b8:=false;
  1479. TValue.Make(@b8, TypeInfo(Boolean), value);
  1480. CheckEquals(1, value.DataSize, 'Size of Boolean differs');
  1481. {$ifdef fpc}
  1482. b16:=true;
  1483. TValue.Make(@b16, TypeInfo(Boolean16), value);
  1484. CheckEquals(2, value.DataSize, 'Size of Boolean16 differs');
  1485. b32:=false;
  1486. TValue.Make(@b32, TypeInfo(Boolean32), value);
  1487. CheckEquals(4, value.DataSize, 'Size of Boolean32 differs');
  1488. b64:=true;
  1489. TValue.Make(@b64, TypeInfo(Boolean64), value);
  1490. CheckEquals(8, value.DataSize, 'Size of Boolean64 differs');
  1491. {$endif}
  1492. bl8:=true;
  1493. TValue.Make(@bl8, TypeInfo(ByteBool), value);
  1494. CheckEquals(1, value.DataSize, 'Size of ByteBool differs');
  1495. bl16:=false;
  1496. TValue.Make(@bl16, TypeInfo(WordBool), value);
  1497. CheckEquals(2, value.DataSize, 'Size of WordBool differs');
  1498. bl32:=false;
  1499. TValue.Make(@bl32, TypeInfo(LongBool), value);
  1500. CheckEquals(4, value.DataSize, 'Size of LongBool differs');
  1501. {$ifdef fpc}
  1502. bl64:=true;
  1503. TValue.Make(@bl64, TypeInfo(QWordBool), value);
  1504. CheckEquals(8, value.DataSize, 'Size of QWordBool differs');
  1505. {$endif}
  1506. f32:=4.567;
  1507. TValue.Make(@f32, TypeInfo(Single), value);
  1508. CheckEquals(4, value.DataSize, 'Size of Single differs');
  1509. f64:=-3456.678;
  1510. TValue.Make(@f64, TypeInfo(Double), value);
  1511. CheckEquals(8, value.DataSize, 'Size of Double differs');
  1512. {$ifdef FPC_HAS_TYPE_EXTENDED}
  1513. f80:=-2345.678;
  1514. TValue.Make(@f80, TypeInfo(Extended), value);
  1515. CheckEquals(10, value.DataSize, 'Size of Extended differs');
  1516. {$endif}
  1517. fcu:=56.78;
  1518. TValue.Make(@fcu, TypeInfo(Currency), value);
  1519. CheckEquals(SizeOf(Currency), value.DataSize, 'Size of Currency differs');
  1520. fco:=456;
  1521. TValue.Make(@fco, TypeInfo(Comp), value);
  1522. CheckEquals(SizeOf(Comp), value.DataSize, 'Size of Comp differs');
  1523. ss := '';
  1524. TValue.Make(@ss, TypeInfo(ShortString), value);
  1525. CheckEquals(254, value.DataSize, 'Size ofShortString differs');
  1526. sa:= '';
  1527. TValue.Make(@sa, TypeInfo(AnsiString), value);
  1528. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of AnsiString differs');
  1529. sw := '';
  1530. TValue.Make(@sw, TypeInfo(WideString), value);
  1531. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of WideString differs');
  1532. su:='';
  1533. TValue.Make(@su, TypeInfo(UnicodeString), value);
  1534. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of UnicodeString differs');
  1535. o := TTestValueClass.Create;
  1536. TValue.Make(@o, TypeInfo(TObject), value);
  1537. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of TObject differs');
  1538. o.Free;
  1539. c := TObject;
  1540. TValue.Make(@c, TypeInfo(TClass), value);
  1541. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of TClass differs');
  1542. i := Nil;
  1543. TValue.Make(@i, TypeInfo(IInterface), value);
  1544. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of IInterface differs');
  1545. TValue.Make(@t, TypeInfo(TTestRecord), value);
  1546. CheckEquals(SizeOf(TTestRecord), value.DataSize, 'Size of TTestRecord differs');
  1547. proc := Nil;
  1548. TValue.Make(@proc, TypeInfo(TTestProc), value);
  1549. CheckEquals(SizeOf(TTestProc), value.DataSize, 'Size of TTestProc differs');
  1550. method := Nil;
  1551. TValue.Make(@method, TypeInfo(TTestMethod), value);
  1552. CheckEquals(SizeOf(TTestMethod), value.DataSize, 'Size of TTestMethod differs');
  1553. TValue.Make(@_as, TypeInfo(TArrayOfLongintStatic), value);
  1554. CheckEquals(SizeOf(TArrayOfLongintStatic), value.DataSize, 'Size of TArrayOfLongintStatic differs');
  1555. TValue.Make(@ad, TypeInfo(TArrayOfLongintDyn), value);
  1556. CheckEquals(SizeOf(TArrayOfLongintDyn), value.DataSize, 'Size of TArrayOfLongintDyn differs');
  1557. e:=low(TTestEnum);
  1558. TValue.Make(@e, TypeInfo(TTestEnum), value);
  1559. CheckEquals(SizeOf(TTestEnum), value.DataSize, 'Size of TTestEnum differs');
  1560. s:=[low(TTestEnum),high(TTestEnum)];
  1561. TValue.Make(@s, TypeInfo(TTestSet), value);
  1562. CheckEquals(SizeOf(TTestSet), value.DataSize, 'Size of TTestSet differs');
  1563. p := Self;
  1564. TValue.Make(@p, TypeInfo(Pointer), value);
  1565. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of Pointer differs');
  1566. end;
  1567. procedure TTestValueGeneral.TestDataSizeEmpty;
  1568. var
  1569. value: TValue;
  1570. begin
  1571. TValue.Make(Nil, TypeInfo(UInt8), value);
  1572. CheckEquals(1, value.DataSize, 'Size of UInt8 differs');
  1573. TValue.Make(Nil, TypeInfo(UInt16), value);
  1574. CheckEquals(2, value.DataSize, 'Size of UInt16 differs');
  1575. TValue.Make(Nil, TypeInfo(UInt32), value);
  1576. CheckEquals(4, value.DataSize, 'Size of UInt32 differs');
  1577. TValue.Make(Nil, TypeInfo(UInt64), value);
  1578. CheckEquals(8, value.DataSize, 'Size of UInt64 differs');
  1579. TValue.Make(Nil, TypeInfo(Int8), value);
  1580. CheckEquals(1, value.DataSize, 'Size of Int8 differs');
  1581. TValue.Make(Nil, TypeInfo(Int16), value);
  1582. CheckEquals(2, value.DataSize, 'Size of Int16 differs');
  1583. TValue.Make(Nil, TypeInfo(Int32), value);
  1584. CheckEquals(4, value.DataSize, 'Size of Int32 differs');
  1585. TValue.Make(Nil, TypeInfo(Int64), value);
  1586. CheckEquals(8, value.DataSize, 'Size of Int64 differs');
  1587. TValue.Make(Nil, TypeInfo(Boolean), value);
  1588. CheckEquals(1, value.DataSize, 'Size of Boolean differs');
  1589. {$ifdef fpc}
  1590. TValue.Make(Nil, TypeInfo(Boolean16), value);
  1591. CheckEquals(2, value.DataSize, 'Size of Boolean16 differs');
  1592. TValue.Make(Nil, TypeInfo(Boolean32), value);
  1593. CheckEquals(4, value.DataSize, 'Size of Boolean32 differs');
  1594. TValue.Make(Nil, TypeInfo(Boolean64), value);
  1595. CheckEquals(8, value.DataSize, 'Size of Boolean64 differs');
  1596. {$endif}
  1597. TValue.Make(Nil, TypeInfo(ByteBool), value);
  1598. CheckEquals(1, value.DataSize, 'Size of ByteBool differs');
  1599. TValue.Make(Nil, TypeInfo(WordBool), value);
  1600. CheckEquals(2, value.DataSize, 'Size of WordBool differs');
  1601. TValue.Make(Nil, TypeInfo(LongBool), value);
  1602. CheckEquals(4, value.DataSize, 'Size of LongBool differs');
  1603. {$ifdef fpc}
  1604. TValue.Make(Nil, TypeInfo(QWordBool), value);
  1605. CheckEquals(8, value.DataSize, 'Size of QWordBool differs');
  1606. {$endif}
  1607. TValue.Make(Nil, TypeInfo(Single), value);
  1608. CheckEquals(4, value.DataSize, 'Size of Single differs');
  1609. TValue.Make(Nil, TypeInfo(Double), value);
  1610. CheckEquals(8, value.DataSize, 'Size of Double differs');
  1611. {$ifdef FPC_HAS_TYPE_EXTENDED}
  1612. TValue.Make(Nil, TypeInfo(Extended), value);
  1613. CheckEquals(10, value.DataSize, 'Size of Extended differs');
  1614. {$endif}
  1615. TValue.Make(Nil, TypeInfo(Currency), value);
  1616. CheckEquals(SizeOf(Currency), value.DataSize, 'Size of Currency differs');
  1617. TValue.Make(Nil, TypeInfo(Comp), value);
  1618. CheckEquals(SizeOf(Comp), value.DataSize, 'Size of Comp differs');
  1619. TValue.Make(Nil, TypeInfo(ShortString), value);
  1620. CheckEquals(254, value.DataSize, 'Size of ShortString differs');
  1621. TValue.Make(Nil, TypeInfo(AnsiString), value);
  1622. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of Pointer differs');
  1623. TValue.Make(Nil, TypeInfo(WideString), value);
  1624. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of WideString differs');
  1625. TValue.Make(Nil, TypeInfo(UnicodeString), value);
  1626. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of UnicodeString differs');
  1627. TValue.Make(Nil, TypeInfo(TObject), value);
  1628. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of TObject differs');
  1629. TValue.Make(Nil, TypeInfo(TClass), value);
  1630. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of TClass differs');
  1631. TValue.Make(Nil, TypeInfo(IInterface), value);
  1632. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of IInterface differs');
  1633. TValue.Make(Nil, TypeInfo(TTestRecord), value);
  1634. CheckEquals(SizeOf(TTestRecord), value.DataSize, 'Size of TTestRecord differs');
  1635. TValue.Make(Nil, TypeInfo(TTestProc), value);
  1636. CheckEquals(SizeOf(TTestProc), value.DataSize, 'Size of TTestProc differs');
  1637. TValue.Make(Nil, TypeInfo(TTestMethod), value);
  1638. CheckEquals(SizeOf(TTestMethod), value.DataSize, 'Size of TTestMethod differs');
  1639. TValue.Make(Nil, TypeInfo(TArrayOfLongintStatic), value);
  1640. CheckEquals(SizeOf(TArrayOfLongintStatic), value.DataSize, 'Size of TArrayOfLongintStatic differs');
  1641. TValue.Make(Nil, TypeInfo(TArrayOfLongintDyn), value);
  1642. CheckEquals(SizeOf(TArrayOfLongintDyn), value.DataSize, 'Size of TArrayOfLongintDyn differs');
  1643. TValue.Make(Nil, TypeInfo(TTestEnum), value);
  1644. CheckEquals(SizeOf(TTestEnum), value.DataSize, 'Size of TTestEnum differs');
  1645. TValue.Make(Nil, TypeInfo(TTestSet), value);
  1646. CheckEquals(SizeOf(TTestSet), value.DataSize, 'Size of TTestSet differs');
  1647. TValue.Make(Nil, TypeInfo(Pointer), value);
  1648. CheckEquals(SizeOf(Pointer), value.DataSize, 'Size of Pointer differs');
  1649. end;
  1650. procedure TTestValueGeneral.TestIsManaged;
  1651. begin
  1652. CheckEquals(true, IsManaged(TypeInfo(ansistring)), 'IsManaged for tkAString');
  1653. CheckEquals(true, IsManaged(TypeInfo(widestring)), 'IsManaged for tkWString');
  1654. CheckEquals(true, IsManaged(TypeInfo(Variant)), 'IsManaged for tkVariant');
  1655. CheckEquals(true, IsManaged(TypeInfo(TArrayOfManagedRec)),
  1656. 'IsManaged for tkArray (with managed ElType)');
  1657. CheckEquals(true, IsManaged(TypeInfo(TArrayOfString)),
  1658. 'IsManaged for tkArray (with managed ElType)');
  1659. CheckEquals(true, IsManaged(TypeInfo(TManagedRec)), 'IsManaged for tkRecord');
  1660. {$ifdef fpc}
  1661. CheckEquals(true, IsManaged(TypeInfo(TManagedRecOp)), 'IsManaged for tkRecord');
  1662. {$endif}
  1663. CheckEquals(true, IsManaged(TypeInfo(IInterface)), 'IsManaged for tkInterface');
  1664. CheckEquals(true, IsManaged(TypeInfo(TManagedObj)), 'IsManaged for tkObject');
  1665. {$ifdef fpc}
  1666. CheckEquals(true, IsManaged(TypeInfo(specialize TArray<byte>)), 'IsManaged for tkDynArray');
  1667. {$else}
  1668. CheckEquals(true, IsManaged(TypeInfo(TArray<byte>)), 'IsManaged for tkDynArray');
  1669. {$endif}
  1670. CheckEquals(true, IsManaged(TypeInfo(unicodestring)), 'IsManaged for tkUString');
  1671. CheckEquals(false, IsManaged(TypeInfo(shortstring)), 'IsManaged for tkSString');
  1672. CheckEquals(false, IsManaged(TypeInfo(Byte)), 'IsManaged for tkInteger');
  1673. CheckEquals(false, IsManaged(TypeInfo(Char)), 'IsManaged for tkChar');
  1674. CheckEquals(false, IsManaged(TypeInfo(TTestEnum)), 'IsManaged for tkEnumeration');
  1675. CheckEquals(false, IsManaged(TypeInfo(Single)), 'IsManaged for tkFloat');
  1676. CheckEquals(false, IsManaged(TypeInfo(TTestSet)), 'IsManaged for tkSet');
  1677. {$ifdef fpc}
  1678. CheckEquals(false, IsManaged(TypeInfo(TTestMethod)), 'IsManaged for tkMethod');
  1679. {$else}
  1680. { Delphi bug (or sabotage). For some reason Delphi considers method pointers to be managed (only in newer versions, probably since XE7) :/ }
  1681. CheckEquals({$if RTLVersion>=28}true{$else}false{$endif}, IsManaged(TypeInfo(TTestMethod)), 'IsManaged for tkMethod');
  1682. {$endif}
  1683. CheckEquals(false, IsManaged(TypeInfo(TArrayOfByte)),
  1684. 'IsManaged for tkArray (with non managed ElType)');
  1685. CheckEquals(false, IsManaged(TypeInfo(TArrayOfNonManagedRec)),
  1686. 'IsManaged for tkArray (with non managed ElType)');
  1687. CheckEquals(false, IsManaged(TypeInfo(TNonManagedRec)), 'IsManaged for tkRecord');
  1688. CheckEquals(false, IsManaged(TypeInfo(TObject)), 'IsManaged for tkClass');
  1689. CheckEquals(false, IsManaged(TypeInfo(TNonManagedObj)), 'IsManaged for tkObject');
  1690. CheckEquals(false, IsManaged(TypeInfo(WideChar)), 'IsManaged for tkWChar');
  1691. CheckEquals(false, IsManaged(TypeInfo(Boolean)), 'IsManaged for tkBool');
  1692. CheckEquals(false, IsManaged(TypeInfo(Int64)), 'IsManaged for tkInt64');
  1693. CheckEquals(false, IsManaged(TypeInfo(UInt64)), 'IsManaged for tkQWord');
  1694. {$ifdef fpc}
  1695. CheckEquals(false, IsManaged(TypeInfo(ICORBATest)), 'IsManaged for tkInterfaceRaw');
  1696. {$endif}
  1697. CheckEquals(false, IsManaged(TypeInfo(TTestProc)), 'IsManaged for tkProcVar');
  1698. CheckEquals(false, IsManaged(TypeInfo(TTestHelper)), 'IsManaged for tkHelper');
  1699. {$ifdef fpc}
  1700. CheckEquals(false, IsManaged(TypeInfo(file)), 'IsManaged for tkFile');
  1701. {$endif}
  1702. CheckEquals(false, IsManaged(TypeInfo(TClass)), 'IsManaged for tkClassRef');
  1703. CheckEquals(false, IsManaged(TypeInfo(Pointer)), 'IsManaged for tkPointer');
  1704. CheckEquals(false, IsManaged(nil), 'IsManaged for nil');
  1705. end;
  1706. Type
  1707. TEnum1 = (en1_1, en1_2);
  1708. TEnum2 = (en2_1);
  1709. TEnum3 = en1_1..en1_1;
  1710. procedure TTestValueGeneral.TestCasts;
  1711. var
  1712. TempV,T1,T2,T3 : TValue;
  1713. begin
  1714. T1:=TValue. specialize From<TEnum1>(en1_1);
  1715. T2:=T1. specialize Cast<TEnum3>;
  1716. // T3:=T2. specialize AsType<TEnum3>;
  1717. CheckTrue((en1_1 = T2. specialize AsType<TEnum3>), 'en1_1 = (TValue.From<TEnum1>(en1_1).Cast<TEnum3>.AsType<TEnum3>)');
  1718. CheckFalse(TValue. specialize From<Integer>(32).TryCast(TypeInfo(AnsiChar), TempV), 'not (TValue.From<Integer>(32).TryCast(TypeInfo(AnsiChar), V)');
  1719. CheckFalse(TValue. specialize From<Integer>(32).TryCast(TypeInfo(WideChar), TempV), 'not (TValue.From<Integer>(32).TryCast(TypeInfo(WideChar), V)');
  1720. {$ifdef fpc}
  1721. CheckFalse(TValue. specialize From<Integer>(32).TryCast(TypeInfo(UnicodeChar), TempV), 'not (TValue.From<Integer>(32).TryCast(TypeInfo(UnicodeChar), V)');
  1722. {$endif}
  1723. CheckTrue(Byte(397) = (TValue. specialize From<Integer>(397). specialize Cast<Byte>(). specialize AsType<Byte>), 'Byte(397) = (TValue.From<Integer>(397).Cast<Byte>().AsType<Byte>)');
  1724. CheckTrue(32 = (TValue. specialize From<Byte>(32). specialize Cast<Integer>(). specialize AsType<Integer>), '32 = (TValue.From<Byte>(32).Cast<Integer>().AsType<Integer>)');
  1725. CheckTrue('test_str' = TValue.{$ifdef fpc}specialize{$endif} From<ShortString>('test_str')
  1726. .{$ifdef fpc}specialize{$endif} Cast<AnsiString>
  1727. .{$ifdef fpc}specialize{$endif} AsType<AnsiString>, 'TValue.From<shortring>.Cast<AnsiString> failed');
  1728. end;
  1729. procedure TTestValueGeneral.TestAssignPointer;
  1730. var
  1731. V : TValue;
  1732. begin
  1733. V:=Pointer(Nil);
  1734. AssertSame('Correct type info', TypeInfo(Pointer),V.TypeInfo);
  1735. end;
  1736. procedure TTestValueGeneral.TestReferenceRawData;
  1737. var
  1738. value: TValue;
  1739. str: String;
  1740. intf: IInterface;
  1741. i: LongInt;
  1742. test: TTestRecord;
  1743. arrdyn: TArrayOfLongintDyn;
  1744. arrstat: TArrayOfLongintStatic;
  1745. begin
  1746. str := 'Hello World';
  1747. UniqueString(str);
  1748. TValue.Make(@str, TypeInfo(String), value);
  1749. Check(PPointer(value.GetReferenceToRawData)^ = Pointer(str), 'Reference to string data differs');
  1750. intf := TInterfacedObject.Create;
  1751. TValue.Make(@intf, TypeInfo(IInterface), value);
  1752. Check(PPointer(value.GetReferenceToRawData)^ = Pointer(intf), 'Reference to interface data differs');
  1753. i := 42;
  1754. TValue.Make(@i, TypeInfo(LongInt), value);
  1755. Check(value.GetReferenceToRawData <> @i, 'Reference to longint is equal');
  1756. Check(PLongInt(value.GetReferenceToRawData)^ = PLongInt(@i)^, 'Reference to longint data differs');
  1757. test.value1 := 42;
  1758. test.value2 := 'Hello World';
  1759. TValue.Make(@test, TypeInfo(TTestRecord), value);
  1760. Check(value.GetReferenceToRawData <> @test, 'Reference to record is equal');
  1761. Check(PTestRecord(value.GetReferenceToRawData)^.value1 = PTestRecord(@test)^.value1, 'Reference to record data value1 differs');
  1762. Check(PTestRecord(value.GetReferenceToRawData)^.value2 = PTestRecord(@test)^.value2, 'Reference to record data value2 differs');
  1763. SetLength(arrdyn, 3);
  1764. arrdyn[0] := 42;
  1765. arrdyn[1] := 23;
  1766. arrdyn[2] := 49;
  1767. TValue.Make(@arrdyn, TypeInfo(TArrayOfLongintDyn), value);
  1768. Check(PPointer(value.GetReferenceToRawData)^ = Pointer(arrdyn), 'Reference to dynamic array data differs');
  1769. arrstat[0] := 42;
  1770. arrstat[1] := 23;
  1771. arrstat[2] := 49;
  1772. arrstat[3] := 59;
  1773. TValue.Make(@arrstat, TypeInfo(TArrayOfLongintStatic), value);
  1774. Check(value.GetReferenceToRawData <> @arrstat, 'Reference to static array is equal');
  1775. Check(PLongInt(value.GetReferenceToRawData)^ = PLongInt(@arrstat)^, 'Reference to static array data differs');
  1776. end;
  1777. procedure TTestValueGeneral.TestReferenceRawDataEmpty;
  1778. var
  1779. value: TValue;
  1780. begin
  1781. TValue.Make(Nil, TypeInfo(String), value);
  1782. Check(Assigned(value.GetReferenceToRawData()), 'Reference to empty String is not assigned');
  1783. Check(not Assigned(PPointer(value.GetReferenceToRawData)^), 'Empty String data is assigned');
  1784. TValue.Make(Nil, TypeInfo(IInterface), value);
  1785. Check(Assigned(value.GetReferenceToRawData()), 'Reference to empty interface is not assigned');
  1786. Check(not Assigned(PPointer(value.GetReferenceToRawData)^), 'Empty interface data is assigned');
  1787. TValue.Make(Nil, TypeInfo(LongInt), value);
  1788. Check(Assigned(value.GetReferenceToRawData()), 'Reference to empty LongInt is not assigned');
  1789. Check(PLongInt(value.GetReferenceToRawData)^ = 0, 'Empty longint data is not 0');
  1790. TValue.Make(Nil, TypeInfo(TTestRecord), value);
  1791. Check(Assigned(value.GetReferenceToRawData()), 'Reference to empty record is not assigned');
  1792. Check(PTestRecord(value.GetReferenceToRawData)^.value1 = 0, 'Empty record data value1 is not 0');
  1793. Check(PTestRecord(value.GetReferenceToRawData)^.value2 = '', 'Empty record data value2 is not empty');
  1794. TValue.Make(Nil, TypeInfo(TArrayOfLongintDyn), value);
  1795. Check(Assigned(value.GetReferenceToRawData()), 'Reference to empty dynamic array is not assigned');
  1796. Check(not Assigned(PPointer(value.GetReferenceToRawData)^), 'Empty dynamic array data is assigned');
  1797. TValue.Make(Nil, TypeInfo(TArrayOfLongintStatic), value);
  1798. Check(Assigned(value.GetReferenceToRawData()), 'Reference to empty static array is not assigned');
  1799. Check(PLongInt(value.GetReferenceToRawData)^ = 0, 'Empty static array data is not 0');
  1800. end;
  1801. initialization
  1802. RegisterTest(TTestValueGeneral);
  1803. RegisterTest(TTestValueSimple);
  1804. RegisterTest(TTestValueSimple);
  1805. RegisterTest(TTestValueVariant);
  1806. end.