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Compiler-Tests.st 18 KB

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  1. Smalltalk createPackage: 'Compiler-Tests'!
  2. TestCase subclass: #ASTParsingTest
  3. instanceVariableNames: ''
  4. package: 'Compiler-Tests'!
  5. !ASTParsingTest methodsFor: 'convenience'!
  6. analyze: aNode forClass: aClass
  7. (SemanticAnalyzer on: aClass) visit: aNode.
  8. ^ aNode
  9. ! !
  10. !ASTParsingTest methodsFor: 'parsing'!
  11. parse: aString
  12. ^ Smalltalk parse: aString
  13. !
  14. parse: aString forClass: aClass
  15. ^ self analyze: (self parse: aString) forClass: aClass
  16. ! !
  17. ASTParsingTest subclass: #ASTPCNodeVisitorTest
  18. instanceVariableNames: ''
  19. package: 'Compiler-Tests'!
  20. !ASTPCNodeVisitorTest methodsFor: 'factory'!
  21. astPCNodeVisitor
  22. ^ ASTPCNodeVisitor new
  23. context: (AIContext new
  24. yourself);
  25. yourself
  26. !
  27. astPCNodeVisitorForSelector: aString
  28. ^ ASTPCNodeVisitor new
  29. selector: aString;
  30. context: (AIContext new
  31. yourself);
  32. yourself
  33. ! !
  34. !ASTPCNodeVisitorTest methodsFor: 'tests'!
  35. testJSStatementNode
  36. | ast visitor |
  37. ast := self parse: 'foo <consolee.log(1)>' forClass: Object.
  38. self assert: (self astPCNodeVisitor
  39. visit: ast;
  40. currentNode) isJSStatementNode
  41. !
  42. testMessageSend
  43. | ast |
  44. ast := self parse: 'foo self asString yourself. ^ self asBoolean' forClass: Object.
  45. self assert: ((self astPCNodeVisitorForSelector: 'yourself')
  46. visit: ast;
  47. currentNode) selector equals: 'yourself'
  48. !
  49. testMessageSendWithBlocks
  50. | ast |
  51. ast := self parse: 'foo true ifTrue: [ [ self asString yourself ] value. ]. ^ self asBoolean' forClass: Object.
  52. self assert: ((self astPCNodeVisitorForSelector: 'yourself')
  53. visit: ast;
  54. currentNode) selector equals: 'yourself'
  55. !
  56. testMessageSendWithInlining
  57. | ast |
  58. ast := self parse: 'foo true ifTrue: [ self asString yourself ]. ^ self asBoolean' forClass: Object.
  59. self assert: ((self astPCNodeVisitorForSelector: 'yourself')
  60. visit: ast;
  61. currentNode) selector equals: 'yourself'.
  62. ast := self parse: 'foo true ifTrue: [ self asString yourself ]. ^ self asBoolean' forClass: Object.
  63. self assert: ((self astPCNodeVisitorForSelector: 'asBoolean')
  64. visit: ast;
  65. currentNode) selector equals: 'asBoolean'
  66. !
  67. testNoMessageSend
  68. | ast |
  69. ast := self parse: 'foo ^ self' forClass: Object.
  70. self assert: (self astPCNodeVisitor
  71. visit: ast;
  72. currentNode) isNil
  73. !
  74. testPC
  75. | ast visitor |
  76. ast := self parse: 'foo <console.log(1)>' forClass: Object.
  77. self assert: (self astPCNodeVisitor
  78. visit: ast;
  79. currentNode) isJSStatementNode
  80. ! !
  81. ASTParsingTest subclass: #ASTPositionTest
  82. instanceVariableNames: ''
  83. package: 'Compiler-Tests'!
  84. !ASTPositionTest methodsFor: 'tests'!
  85. testNodeAtPosition
  86. | node |
  87. node := self parse: 'yourself
  88. ^ self'.
  89. self assert: (node navigationNodeAt: 2@4 ifAbsent: [ nil ]) source equals: 'self'.
  90. node := self parse: 'foo
  91. true ifTrue: [ 1 ]'.
  92. self assert: (node navigationNodeAt: 2@7 ifAbsent: [ nil ]) selector equals: 'ifTrue:'.
  93. node := self parse: 'foo
  94. self foo; bar; baz'.
  95. self assert: (node navigationNodeAt: 2@8 ifAbsent: [ nil ]) selector equals: 'foo'
  96. ! !
  97. ASTParsingTest subclass: #CodeGeneratorTest
  98. instanceVariableNames: 'receiver'
  99. package: 'Compiler-Tests'!
  100. !CodeGeneratorTest methodsFor: 'accessing'!
  101. codeGeneratorClass
  102. ^ CodeGenerator
  103. ! !
  104. !CodeGeneratorTest methodsFor: 'factory'!
  105. compiler
  106. ^ Compiler new
  107. codeGeneratorClass: self codeGeneratorClass;
  108. yourself
  109. ! !
  110. !CodeGeneratorTest methodsFor: 'initialization'!
  111. setUp
  112. receiver := DoIt new
  113. !
  114. tearDown
  115. "receiver := nil"
  116. ! !
  117. !CodeGeneratorTest methodsFor: 'testing'!
  118. should: aString receiver: anObject return: aResult
  119. | method result |
  120. receiver := anObject.
  121. method := self compiler install: aString forClass: anObject class protocol: 'tests'.
  122. result := receiver perform: method selector.
  123. anObject class removeCompiledMethod: method.
  124. self assert: aResult equals: result
  125. !
  126. should: aString return: anObject
  127. ^ self
  128. should: aString
  129. receiver: receiver
  130. return: anObject
  131. ! !
  132. !CodeGeneratorTest methodsFor: 'tests'!
  133. testAssignment
  134. self should: 'foo | a | a := true ifTrue: [ 1 ]. ^ a' return: 1.
  135. self should: 'foo | a | a := false ifTrue: [ 1 ]. ^ a' return: nil.
  136. self should: 'foo | a | ^ a := true ifTrue: [ 1 ]' return: 1
  137. !
  138. testBackslashSelectors
  139. self should: '\ arg ^ 4' return: 4.
  140. self should: '\\ arg ^ 42' return: 42
  141. !
  142. testBlockReturn
  143. self should: 'foo ^ #(1 2 3) collect: [ :each | true ifTrue: [ each + 1 ] ]' return: #(2 3 4).
  144. self should: 'foo ^ #(1 2 3) collect: [ :each | false ifFalse: [ each + 1 ] ]' return: #(2 3 4).
  145. self should: 'foo ^ #(1 2 3) collect: [ :each | each odd ifTrue: [ each + 1 ] ifFalse: [ each - 1 ] ]' return: #(2 1 4).
  146. !
  147. testCascades
  148. self should: 'foo ^ Array new add: 3; add: 4; yourself' return: #(3 4)
  149. !
  150. testCascadesWithInlining
  151. self should: 'foo ^ true ifTrue: [ 1 ] ifFalse: [ 2 ]' return: 1.
  152. self should: 'foo ^ false ifTrue: [ 1 ] ifFalse: [ 2 ]' return: 2
  153. !
  154. testDynamicArrayElementsOrdered
  155. self should: 'foo
  156. | x |
  157. x := 1.
  158. ^ { x. x := 2 }
  159. ' return: #(1 2).
  160. self should: 'foo
  161. | x |
  162. x := 1.
  163. ^ { x. true ifTrue: [ x := 2 ] }
  164. ' return: #(1 2).
  165. !
  166. testDynamicDictionaryElementsOrdered
  167. self should: 'foo
  168. | x |
  169. x := ''foo''.
  170. ^ #{ x->1. ''bar''->(true ifTrue: [ 2 ]) }
  171. ' return: #{'foo'->1. 'bar'->2}.
  172. !
  173. testDynamicDictionaryWithMoreArrows
  174. self should: 'foo ^ #{1->2->3}' return: (HashedCollection with: 1->2->3)
  175. !
  176. testGlobalVar
  177. self should: 'foo ^ eval class' return: BlockClosure.
  178. self should: 'foo ^ Math cos: 0' return: 1.
  179. self should: 'foo ^ NonExistingVar' return: nil
  180. !
  181. testInnerTemporalDependentElementsOrdered
  182. self should: 'foo
  183. | x |
  184. x := Array.
  185. ^ x with: ''foo''->x with: ''bar''->(x := 2)
  186. ' return: {'foo'->Array. 'bar'->2}.
  187. self should: 'foo
  188. | x |
  189. x := Array.
  190. ^ x with: ''foo''->x with: ''bar''->(true ifTrue: [ x := 2 ])
  191. ' return: {'foo'->Array. 'bar'->2}.
  192. self should: 'foo
  193. | x |
  194. x := 1.
  195. ^ Array with: ''foo''->x with: ''bar''->(true ifTrue: [ x := 2 ])
  196. ' return: {'foo'->1. 'bar'->2}.
  197. self should: 'foo
  198. | x |
  199. x := 1.
  200. ^ { ''foo''->x. ''bar''->(true ifTrue: [ x := 2 ]) }
  201. ' return: {'foo'->1. 'bar'->2}.
  202. self should: 'foo
  203. | x |
  204. x := 1.
  205. ^ #{ ''foo''->x. ''bar''->(true ifTrue: [ x := 2 ]) }
  206. ' return: #{'foo'->1. 'bar'->2}.
  207. !
  208. testJSStatement
  209. self should: 'foo <return 2+3>' return: 5
  210. !
  211. testLexicalScope
  212. self should: 'foo | a | a := 1. [ a := 2 ] value. ^ a' return: 2
  213. !
  214. testLiterals
  215. self should: 'foo ^ 1' return: 1.
  216. self should: 'foo ^ ''hello''' return: 'hello'.
  217. self should: 'foo ^ #(1 2 3 4)' return: #(1 2 3 4).
  218. self should: 'foo ^ {1. [:x | x ] value: 2. 3. [4] value}' return: #(1 2 3 4).
  219. self should: 'foo ^ true' return: true.
  220. self should: 'foo ^ false' return: false.
  221. self should: 'foo ^ #{1->2. 3->4}' return: #{1->2. 3->4}.
  222. self should: 'foo ^ #hello' return: #hello.
  223. self should: 'foo ^ $h' return: 'h'.
  224. self should: 'foo ^ -123.456' return: -123.456.
  225. self should: 'foo ^ -2.5e4' return: -25000.
  226. !
  227. testLocalReturn
  228. self should: 'foo ^ 1' return: 1.
  229. self should: 'foo ^ 1 + 1' return: 2.
  230. self should: 'foo ' return: receiver.
  231. self should: 'foo self asString' return: receiver.
  232. self should: 'foo | a b | a := 1. b := 2. ^ a + b' return: 3
  233. !
  234. testMessageSends
  235. self should: 'foo ^ 1 asString' return: '1'.
  236. self should: 'foo ^ 1 + 1' return: 2.
  237. self should: 'foo ^ 1 + 2 * 3' return: 9.
  238. self should: 'foo ^ 1 to: 3' return: #(1 2 3).
  239. self should: 'foo ^ 1 to: 5 by: 2' return: #(1 3 5)
  240. !
  241. testMultipleSequences
  242. self should: 'foo | a b c | a := 2. b := 3. c := a + b. ^ c * 6' return: 30
  243. !
  244. testMutableLiterals
  245. "Mutable literals must be aliased in cascades.
  246. See https://github.com/amber-smalltalk/amber/issues/428"
  247. self
  248. should: 'foo ^ #( 1 2 ) at: 1 put: 3; yourself'
  249. return: #(3 2)
  250. !
  251. testNestedIfTrue
  252. self should: 'foo ^ true ifTrue: [ false ifFalse: [ 1 ] ]' return: 1.
  253. self should: 'foo ^ true ifTrue: [ false ifTrue: [ 1 ] ]' return: nil.
  254. self should: 'foo true ifTrue: [ false ifFalse: [ ^ 1 ] ]' return: 1.
  255. self should: 'foo true ifTrue: [ false ifTrue: [ ^ 1 ] ]' return: receiver.
  256. !
  257. testNestedSends
  258. self should: 'foo ^ (Point x: (Point x: 2 y: 3) y: 4) asString' return: (Point x: (2@3) y: 4) asString
  259. !
  260. testNonLocalReturn
  261. self should: 'foo [ ^ 1 ] value' return: 1.
  262. self should: 'foo [ ^ 1 + 1 ] value' return: 2.
  263. self should: 'foo | a b | a := 1. b := 2. [ ^ a + b ] value. self halt' return: 3.
  264. self should: 'foo [ :x | ^ x + x ] value: 4. ^ 2' return: 8
  265. !
  266. testPascalCaseGlobal
  267. self should: 'foo ^Object' return: (Smalltalk globals at: 'Object').
  268. self should: 'foo ^NonExistent' return: nil
  269. !
  270. testSendReceiverAndArgumentsOrdered
  271. self should: 'foo
  272. | x |
  273. x := 1.
  274. ^ Array with: x with: (true ifTrue: [ x := 2 ])
  275. ' return: #(1 2).
  276. self should: 'foo
  277. | x |
  278. x := Array.
  279. ^ x with: x with: (true ifTrue: [ x := 2 ])
  280. ' return: {Array. 2}.
  281. !
  282. testSuperSend
  283. self
  284. should: 'foo ^ super isBoolean'
  285. receiver: true
  286. return: false
  287. !
  288. testTempVariables
  289. self should: 'foo | a | ^ a' return: nil.
  290. self should: 'foo | AVariable | ^ AVariable' return: nil.
  291. self should: 'foo | a b c | ^ c' return: nil.
  292. self should: 'foo | a | [ | d | ^ d ] value' return: nil.
  293. self should: 'foo | a | a:= 1. ^ a' return: 1.
  294. self should: 'foo | AVariable | AVariable := 1. ^ AVariable' return: 1.
  295. !
  296. testThisContext
  297. self should: 'foo ^ [ thisContext ] value outerContext == thisContext' return: true
  298. !
  299. testifFalse
  300. self should: 'foo true ifFalse: [ ^ 1 ]' return: receiver.
  301. self should: 'foo false ifFalse: [ ^ 2 ]' return: 2.
  302. self should: 'foo ^ true ifFalse: [ 1 ]' return: nil.
  303. self should: 'foo ^ false ifFalse: [ 2 ]' return: 2.
  304. !
  305. testifFalseIfTrue
  306. self should: 'foo true ifFalse: [ ^ 1 ] ifTrue: [ ^ 2 ]' return: 2.
  307. self should: 'foo false ifFalse: [ ^ 2 ] ifTrue: [ ^1 ]' return: 2.
  308. self should: 'foo ^ true ifFalse: [ 1 ] ifTrue: [ 2 ]' return: 2.
  309. self should: 'foo ^ false ifFalse: [ 2 ] ifTrue: [ 1 ]' return: 2.
  310. !
  311. testifNil
  312. self should: 'foo ^ 1 ifNil: [ 2 ]' return: 1.
  313. self should: 'foo ^ nil ifNil: [ 2 ]' return: 2.
  314. self should: 'foo 1 ifNil: [ ^ 2 ]' return: receiver.
  315. self should: 'foo nil ifNil: [ ^ 2 ]' return: 2.
  316. !
  317. testifNilIfNotNil
  318. self should: 'foo ^ 1 ifNil: [ 2 ] ifNotNil: [ 3 ]' return: 3.
  319. self should: 'foo ^ nil ifNil: [ 2 ] ifNotNil: [ 3 ]' return: 2.
  320. self should: 'foo 1 ifNil: [ ^ 2 ] ifNotNil: [ ^3 ]' return: 3.
  321. self should: 'foo nil ifNil: [ ^ 2 ] ifNotNil: [ ^3 ]' return: 2.
  322. !
  323. testifNotNil
  324. self should: 'foo ^ 1 ifNotNil: [ 2 ]' return: 2.
  325. self should: 'foo ^ nil ifNotNil: [ 2 ]' return: nil.
  326. self should: 'foo 1 ifNotNil: [ ^ 2 ]' return: 2.
  327. self should: 'foo nil ifNotNil: [ ^ 2 ]' return: receiver.
  328. !
  329. testifNotNilWithArgument
  330. self should: 'foo ^ 1 ifNotNil: [ :val | val + 2 ]' return: 3.
  331. self should: 'foo ^ nil ifNotNil: [ :val | val + 2 ]' return: nil.
  332. self should: 'foo ^ 1 ifNil: [ 5 ] ifNotNil: [ :val | val + 2 ]' return: 3.
  333. self should: 'foo ^ nil ifNil: [ 5 ] ifNotNil: [ :val | val + 2 ]' return: 5.
  334. self should: 'foo ^ 1 ifNotNil: [ :val | val + 2 ] ifNil: [ 5 ]' return: 3.
  335. self should: 'foo ^ nil ifNotNil: [ :val | val + 2 ] ifNil: [ 5 ]' return: 5
  336. !
  337. testifTrue
  338. self should: 'foo false ifTrue: [ ^ 1 ]' return: receiver.
  339. self should: 'foo true ifTrue: [ ^ 2 ]' return: 2.
  340. self should: 'foo ^ false ifTrue: [ 1 ]' return: nil.
  341. self should: 'foo ^ true ifTrue: [ 2 ]' return: 2.
  342. !
  343. testifTrueIfFalse
  344. self should: 'foo false ifTrue: [ ^ 1 ] ifFalse: [ ^2 ]' return: 2.
  345. self should: 'foo true ifTrue: [ ^ 1 ] ifFalse: [ ^ 2 ]' return: 1.
  346. self should: 'foo ^ false ifTrue: [ 2 ] ifFalse: [ 1 ]' return: 1.
  347. self should: 'foo ^ true ifTrue: [ 2 ] ifFalse: [ 1 ]' return: 2.
  348. ! !
  349. CodeGeneratorTest subclass: #ASTInterpreterTest
  350. instanceVariableNames: ''
  351. package: 'Compiler-Tests'!
  352. !ASTInterpreterTest methodsFor: 'parsing'!
  353. analyze: aNode forClass: aClass
  354. (SemanticAnalyzer on: aClass) visit: aNode.
  355. ^ aNode
  356. !
  357. parse: aString
  358. ^ Smalltalk parse: aString
  359. !
  360. parse: aString forClass: aClass
  361. ^ self analyze: (self parse: aString) forClass: aClass
  362. ! !
  363. !ASTInterpreterTest methodsFor: 'private'!
  364. interpret: aString receiver: anObject withArguments: aDictionary
  365. "The food is a methodNode. Interpret the sequenceNode only"
  366. | ctx ast interpreter |
  367. interpreter := ASTInterpreter new.
  368. ast := self parse: aString forClass: anObject class.
  369. ctx := AIContext new
  370. receiver: anObject;
  371. interpreter: interpreter;
  372. yourself.
  373. "Define locals for the context"
  374. ast sequenceNode ifNotNil: [ :sequence |
  375. sequence temps do: [ :each |
  376. ctx defineLocal: each ] ].
  377. aDictionary keysAndValuesDo: [ :key :value |
  378. ctx localAt: key put: value ].
  379. ^ interpreter
  380. context: ctx;
  381. interpret: ast nextChild;
  382. proceed;
  383. result
  384. ! !
  385. !ASTInterpreterTest methodsFor: 'testing'!
  386. should: aString receiver: anObject return: aResult
  387. receiver := anObject.
  388. ^ self
  389. assert: (self interpret: aString receiver: receiver withArguments: #{})
  390. equals: aResult
  391. !
  392. should: aString return: anObject
  393. ^ self
  394. should: aString
  395. receiver: receiver
  396. return: anObject
  397. ! !
  398. ASTInterpreterTest subclass: #ASTDebuggerTest
  399. instanceVariableNames: ''
  400. package: 'Compiler-Tests'!
  401. !ASTDebuggerTest methodsFor: 'private'!
  402. interpret: aString receiver: anObject withArguments: aDictionary
  403. | ctx ast debugger |
  404. ctx := AIContext new
  405. receiver: anObject;
  406. interpreter: ASTInterpreter new;
  407. yourself.
  408. ast := self parse: aString forClass: anObject class.
  409. "Define locals for the context"
  410. ast sequenceNode ifNotNil: [ :sequence |
  411. sequence temps do: [ :each |
  412. ctx defineLocal: each ] ].
  413. aDictionary keysAndValuesDo: [ :key :value |
  414. ctx localAt: key put: value ].
  415. ctx interpreter context: ctx.
  416. ctx interpreter node: ast nextChild.
  417. debugger := ASTDebugger context: ctx.
  418. ^ debugger
  419. proceed;
  420. result
  421. ! !
  422. CodeGeneratorTest subclass: #InliningCodeGeneratorTest
  423. instanceVariableNames: ''
  424. package: 'Compiler-Tests'!
  425. !InliningCodeGeneratorTest methodsFor: 'accessing'!
  426. codeGeneratorClass
  427. ^ InliningCodeGenerator
  428. ! !
  429. TestCase subclass: #ScopeVarTest
  430. instanceVariableNames: ''
  431. package: 'Compiler-Tests'!
  432. !ScopeVarTest methodsFor: 'tests'!
  433. testClassRefVar
  434. | node |
  435. node := VariableNode new
  436. value: 'Object';
  437. yourself.
  438. SemanticAnalyzer new
  439. pushScope: MethodLexicalScope new;
  440. visit: node.
  441. self assert: node binding isClassRefVar
  442. !
  443. testInstanceVar
  444. | node scope |
  445. node := VariableNode new
  446. value: 'bzzz';
  447. yourself.
  448. scope := MethodLexicalScope new.
  449. scope addIVar: 'bzzz'.
  450. self assert: (scope bindingFor: node) isInstanceVar
  451. !
  452. testPseudoVar
  453. | node pseudoVars |
  454. pseudoVars := #('self' 'super' 'true' 'false' 'nil').
  455. pseudoVars do: [:each |
  456. node := VariableNode new
  457. value: each;
  458. yourself.
  459. self assert: (MethodLexicalScope new bindingFor: node) isPseudoVar]
  460. !
  461. testTempVar
  462. | node scope |
  463. node := VariableNode new
  464. value: 'bzzz';
  465. yourself.
  466. scope := MethodLexicalScope new.
  467. scope addTemp: 'bzzz'.
  468. self assert: (scope bindingFor: node) isTempVar
  469. !
  470. testUnknownVar
  471. | node |
  472. node := VariableNode new
  473. value: 'bzzz';
  474. yourself.
  475. self assert: (MethodLexicalScope new bindingFor: node) isNil
  476. ! !
  477. TestCase subclass: #SemanticAnalyzerTest
  478. instanceVariableNames: 'analyzer'
  479. package: 'Compiler-Tests'!
  480. !SemanticAnalyzerTest methodsFor: 'running'!
  481. setUp
  482. analyzer := SemanticAnalyzer on: Object
  483. ! !
  484. !SemanticAnalyzerTest methodsFor: 'tests'!
  485. testAssignment
  486. | src ast |
  487. src := 'foo self := 1'.
  488. ast := Smalltalk parse: src.
  489. self should: [analyzer visit: ast] raise: InvalidAssignmentError
  490. !
  491. testNonLocalReturn
  492. | src ast |
  493. src := 'foo | a | a + 1. ^ a'.
  494. ast := Smalltalk parse: src.
  495. analyzer visit: ast.
  496. self deny: ast scope hasNonLocalReturn
  497. !
  498. testNonLocalReturn2
  499. | src ast |
  500. src := 'foo | a | a + 1. [ [ ^ a] ]'.
  501. ast := Smalltalk parse: src.
  502. analyzer visit: ast.
  503. self assert: ast scope hasNonLocalReturn
  504. !
  505. testScope
  506. | src ast |
  507. src := 'foo | a | a + 1. [ | b | b := a ]'.
  508. ast := Smalltalk parse: src.
  509. analyzer visit: ast.
  510. self deny: ast nodes first nodes last scope == ast scope.
  511. !
  512. testScope2
  513. | src ast |
  514. src := 'foo | a | a + 1. [ [ | b | b := a ] ]'.
  515. ast := Smalltalk parse: src.
  516. analyzer visit: ast.
  517. self deny: ast nodes first nodes last nodes first nodes first scope == ast scope.
  518. !
  519. testScopeLevel
  520. | src ast |
  521. src := 'foo | a | a + 1. [ [ | b | b := a ] ]'.
  522. ast := Smalltalk parse: src.
  523. analyzer visit: ast.
  524. self assert: ast scope scopeLevel equals: 1.
  525. self assert: ast nodes first nodes last nodes first nodes first scope scopeLevel equals: 3
  526. !
  527. testUnknownVariables
  528. | src ast |
  529. src := 'foo | a | b + a'.
  530. ast := Smalltalk parse: src.
  531. self should: [ analyzer visit: ast ] raise: UnknownVariableError
  532. !
  533. testUnknownVariablesWithScope
  534. | src ast |
  535. src := 'foo | a b | [ c + 1. [ a + 1. d + 1 ]]'.
  536. ast := Smalltalk parse: src.
  537. self should: [ analyzer visit: ast ] raise: UnknownVariableError
  538. !
  539. testVariableShadowing
  540. | src ast |
  541. src := 'foo | a | a + 1'.
  542. ast := Smalltalk parse: src.
  543. analyzer visit: ast
  544. !
  545. testVariableShadowing2
  546. | src ast |
  547. src := 'foo | a | a + 1. [ | a | a := 2 ]'.
  548. ast := Smalltalk parse: src.
  549. self should: [analyzer visit: ast] raise: ShadowingVariableError
  550. !
  551. testVariableShadowing3
  552. | src ast |
  553. src := 'foo | a | a + 1. [ | b | b := 2 ]'.
  554. ast := Smalltalk parse: src.
  555. analyzer visit: ast
  556. !
  557. testVariableShadowing4
  558. | src ast |
  559. src := 'foo | a | a + 1. [ [ [ | b | b := 2 ] ] ]'.
  560. ast := Smalltalk parse: src.
  561. analyzer visit: ast
  562. !
  563. testVariableShadowing5
  564. | src ast |
  565. src := 'foo | a | a + 1. [ [ [ | a | a := 2 ] ] ]'.
  566. ast := Smalltalk parse: src.
  567. self should: [analyzer visit: ast] raise: ShadowingVariableError
  568. !
  569. testVariablesLookup
  570. | src ast |
  571. src := 'foo | a | a + 1. [ | b | b := a ]'.
  572. ast := Smalltalk parse: src.
  573. analyzer visit: ast.
  574. "Binding for `a` in the message send"
  575. self assert: ast nodes first nodes first receiver binding isTempVar.
  576. self assert: ast nodes first nodes first receiver binding scope == ast scope.
  577. "Binding for `b`"
  578. self assert: ast nodes first nodes last nodes first nodes first left binding isTempVar.
  579. self assert: ast nodes first nodes last nodes first nodes first left binding scope == ast nodes first nodes last scope.
  580. ! !
  581. SemanticAnalyzerTest subclass: #AISemanticAnalyzerTest
  582. instanceVariableNames: ''
  583. package: 'Compiler-Tests'!
  584. !AISemanticAnalyzerTest methodsFor: 'running'!
  585. setUp
  586. analyzer := (AISemanticAnalyzer on: Object)
  587. context: (AIContext new
  588. defineLocal: 'local';
  589. localAt: 'local' put: 3;
  590. yourself);
  591. yourself
  592. ! !
  593. !AISemanticAnalyzerTest methodsFor: 'tests'!
  594. testContextVariables
  595. | src ast |
  596. src := 'foo | a | local + a'.
  597. ast := Smalltalk parse: src.
  598. self shouldnt: [ analyzer visit: ast ] raise: UnknownVariableError
  599. ! !