#include 'Stix.st'. ################################################################# ## MAIN ################################################################# ## TODO: use #define to define a class or use #class to define a class. ## use #extend to extend a class ## using #class for both feels confusing. #extend Apex { } #extend SmallInteger { #method getTrue: anInteger { ^anInteger + 9999. } #method inc { ^self + 1. } } #class TestObject(Object) { #dcl(#class) Q R. #dcl(#classinst) a1 a2. } #class MyObject(TestObject) { #method(#class) main2 { | k | 'BEGINNING OF main2' dump. k := ['this is test-011' dump. Exception signal: 'main2 screwed...'. 8888 dump. ] on: Exception do: [ :ex | 'Exception occurred' dump. ex messageText dump. 'Getting back to....' dump. "ex return: 9999." ex pass. 'AFTER RETURN' dump. ]. k dump. 'END OF main2' dump. } #method(#class) raise_exception { Exception signal: 'bad exceptinon'. } #method(#class) test3 { | k j g_ex | j := 20. k := [ '>>> TEST3 METHOD >>> ' dump. j dump. (j < 25) ifTrue: [ | t | t := Exception signal: 'bad exceptinon'. ## when resumed, t should get Exception, the leftover in the stack... t signal: 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'. ## so it should be ok to signal again.. ##t := self raise_exception. ## when resumed, t should get 'self' ##g_ex retry. # You should not do these as the following 3 lines make things very complicated. ##g_ex signal. ##g_ex pass. 'RESUMED???' dump. t dump. j dump. ]. 'OOOOOOOOOOOOOOOOOOOOOOO' dump. 'JJJJJJJJJJJJJJ' dump. ] on: Exception do: [ :ex | 'Exception occurred' dump. ex messageText dump. j := j + 1. g_ex := ex. ex resume. ]. k dump. 'END OF TEST3' dump. } #method(#class) test4_1 { | k j | j := 20. k := [ '>>> TEST4_1 METHOD >>> ' dump. j dump. (j < 25) ifTrue: [ | t | ##t := Exception signal: 'bad exceptinon'. ## when resume, t should get Exception. t := self raise_exception. ## when resumed, t should get 'self' 'RESUMED???' dump. t dump. j dump. ]. 'OOOOOOOOOOOOOOOOOOOOOOO' dump. 'JJJJJJJJJJJJJJ' dump. ] on: Exception do: [ :ex | 'Exception occurred' dump. ex messageText dump. j := j + 1. ex pass. ]. k dump. 'END OF TEST4_1' dump. } #method(#class) test4 { 'BEGINNING OF TEST4' dump. [ self test4_1 ] on: Exception do: [:ex | 'Excepton in test4_1' dump. ex messageText dump. ex resume]. 'END OF TEST4' dump. } #method(#class) test5 { | k j | 'BEGINNING OF TEST5' dump. j := 20. k := [ '>>> TEST5 BLOCK >>> ' dump. j dump. (j < 25) ifTrue: [ | t | ##t := Exception signal: 'bad exceptinon'. ## when resume, t should get Exception. t := self raise_exception. ## when resumed, t should get 'self' ]. 'OOOOOOOOOOOOOOOOOOOOOOO' dump. 'JJJJJJJJJJJJJJ' dump. ] on: Exception do: [ :ex | 'Exception occurred' dump. ex messageText dump. j := j + 1. ex retry. ]. k dump. 'END OF TEST5' dump. } #method(#class) test11 { ## exception is raised in a new process. it can't be captured ## by an exception handler of a calling process. ## exception handling must not cross the process boundary. 'BEGINNING OF test11' dump. [ |p | p := [ Exception signal: 'Exception in a new process of test11'. ] newProcess. 'JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ' dump. p resume. ] on: Exception do: [:ex | 'EXCEPTION ----------' dump. ex messageText dump ]. 'END OF test11' dump. } #method(#class) test12 { 'BEGINNING OF test12' dump. [ |p | p := [ [ Exception signal: 'Exception in a new process of test12' ] on: Exception do: [:ex | ('EXCEPTION CAUGHT...in test12 ==> ', (ex messageText)) dump. ] ] newProcess. 'JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ' dump. p resume. ] on: Exception do: [:ex | 'EXCEPTION ----------' dump. ex messageText dump ]. 'END OF test12' dump. } #method(#class) main { '>>>>> BEGINNING OF MAIN' dump. [ self main2 ] on: Exception do: [ :ex | 'EXCEPTION CAUGHT IN MAIN....' dump. ex messageText dump. "ex pass." 'Returning back to where the exception has signalled in main2...' dump. ex resume. ]. '##############################' dump. ## self test3. ## self test4. ## self test5. self test11. ## self test12. ## 100 timesRepeat: ['>>>>> END OF MAIN' dump]. "(Exception isKindOf: Apex) dump. (Exception isMemberOf: Apex) dump. (Exception isMemberOf: Class) dump. (1 isMemberOf: SmallInteger) dump. (1 isKindOf: Integer) dump. (1 isKindOf: Class) dump. (1 isKindOf: Apex) dump. (Exception isKindOf: Class) dump. (Exception isKindOf: Apex) dump. (Exception isKindOf: Object) dump. (Exception isKindOf: (Apex new)) dump. (Exception isKindOf: (Object new)) dump." '@@@@@@@@@@@@@@@@@@@@@@@@@@@@' dump. ## the following line(return:to:) must cause primitive failure... ##[ Processor return: 10 to: 20. ] on: Exception do: [:ex | ex messageText dump]. ##[ Processor return: 10 to: 20. ] ## on: PrimitiveFailureException do: [:ex | 'PRIMITIVE FAILURE CAUGHT HERE HERE HERE' dump] ## on: Exception do: [:ex | ex messageText dump]. '>>>>> END OF MAIN' dump. } }