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