![Example
GLMPane>>resetAnnouncer
super resetAnnouncer.
self presentations do:
[ :each | each resetAnnouncer]
resetAnnouncer
update
2
resetAnnouncer
75 63 classes
75 classes
GLMPane>>update
...
self presentations do: [ :each | each update ]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Inferring Types by Mining Class Usage Frequency from Inline Caches
- 1. Inferring Types by Mining Class Usage Frequency from Inline Caches Nevena Milojković SCG University of Bern 1 Mohammad Ghafari SCG University of Bern Oscar Nierstrasz SCG University of Bern Clément Béra RMOD - INRIA Lille Nord Europe
- 2. Example GLMPane>>resetAnnouncer super resetAnnouncer. self presentations do: [ :each | each resetAnnouncer] resetAnnouncer update 2 resetAnnouncer 75 63 classes 75 classes GLMPane>>update ... self presentations do: [ :each | each update ]
- 3. Possible types for each GTGenericStackDebugger GLMRoassal2Presentation … MooseFinder PPBrowser … GTPPDebugger PPVerticalParserInspector GLMPane … GTSimpleMethodsBrowser GLMRubricTextPresentation 3 63 classes GTGenericStackDebugger GLMRoassal2Presentation … MooseFinder PPBrowser … GTPPDebugger PPVerticalParserInspector GLMPane … GTSimpleMethodsBrowser GLMRubricTextPresentation DYNAMIC TYPE
- 4. Possible hierarchies for each GLMPane GLMPresentation 4 Two hierarchies GLMPane GLMPresentation
- 5. Inline Caches 5 GLMPane>>resetAnnouncer super resetAnnouncer. self presentations do: [ :each | each resetAnnouncer] RECEIVER TYPE 21 <70> self 22 <85 00> superSend: resetAnnouncer 24 <87> pop 25 <70> self 26 <D1> send: presentations 27 <8F 01 00 03> closureNumCopied: 0 numArgs: 1 bytes 31 to 33 31 <10> pushTemp: 0 32 <D0> send: resetAnnouncer 33 <7D> blockReturn 34 <CB> send: do: 35 <87> pop 36 <78> returnSelf BYTECODE
- 7. Inline Caches - Ordered Classes 7 112 22 13 6 3 2 0 0 0 … … … GTGenericStackDebugger GLMRoassal2Presentation MooseFinder PPBrowser GTPPDebugger PPVerticalParserInspector GLMPane GTSimpleMethodsBrowser GLMRubricTextPresentation
- 8. Inline Caches - Ordered Hierarchies 8 GLMPane GLMPresentation 112 564
- 9. Inline Caches - Ordered Hierarchies 9 GLMPresentation GLMPane 564 112
- 10. RESULTS - classes 10 0% 25% 50% 75% 100% Roassal2 Glamour Morphic Moose 37%40%34%34% 16%9% 6%6% 47%51% 60%60% guessed variables - average 59% near-guessed variables - average 7% incorrectly guessed variables - average 34%
- 11. RESULTS - hierarchies 11 0% 25% 50% 75% 100% Roassal2 Glamour Morphic Moose 26% 11% 4% 15% 9% 12% 7% 13% 65% 77% 89% 72% guessed variables - average 72% near-guessed variables - average 13% incorrectly guessed variables - average 15%
- 12. Comparison with EATI 12 0 1000 2000 3000 4000 Inline Caches EATI 748 542 2'080 3'090 # of guessed variables # of near-guessed variables
- 13. Summary 13 GLMPane>>resetAnnouncer super resetAnnouncer. self presentations do: [ :each | each resetAnnouncer] GLMPane>>update ... self presentations do: [ :each | each update ] GTGenericStackDebugger … MooseFinder PPBrowser … GTPPDebugger GLMPane … GTSimpleMethodsBrowser GLMRubricTextPresentation GLMPane GLMTabulator GLMCompositePresentation GLMListPresentation … GLMImplicitBrowser OnMooseMetaPropertiesWithoutComments PPParserBrowser GLMSpecPresentation INLINE CACHING FREQUENCY DATA