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Representing Java classes in a typed intermediate language

Published: 01 September 1999 Publication History

Abstract

We propose a conservative extension of the polymorphic lambda calculus (Fω) as an intermediate language for compiling languages with name-based class and interface hierarchies. Our extension enriches standard Fω with recursive types, existential types, and row polymorphism, but only ordered records with no subtyping. Basing our language on Fω makes it also a suitable target for translation from other higher-order languages; this enables the safe interoperation between class-based and higher-order languages and the reuse of common type-directed optimization techniques, compiler back ends, and runtime support.We present the formal semantics of our intermediate language and illustrate its features by providing a formal translation from a subset of Java, including classes, interfaces, and private instance variables. The translation preserves the name-based hierarchical relation between Java classes and interfaces, and allows access to private instance variables of parameters of the same class as the one defining the method. It also exposes the details of method invocation and instance variable access and allows many standard optimizations to be performed on the object-oriented code.

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cover image ACM Conferences
ICFP '99: Proceedings of the fourth ACM SIGPLAN international conference on Functional programming
September 1999
288 pages
ISBN:1581131119
DOI:10.1145/317636
  • Chairmen:
  • Didier Rémy,
  • Peter Lee
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Published: 01 September 1999

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ICFP '99 Paper Acceptance Rate 25 of 81 submissions, 31%;
Overall Acceptance Rate 333 of 1,064 submissions, 31%

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  • (2005)Type-safe optimisation of plugin architecturesProceedings of the 12th international conference on Static Analysis10.1007/11547662_11(135-154)Online publication date: 7-Sep-2005
  • (2004)Extensible objects without labelsACM Transactions on Programming Languages and Systems10.1145/1018203.101820626:5(805-835)Online publication date: 1-Sep-2004
  • (2004)Numbering mattersProceedings of the ninth ACM SIGPLAN international conference on Functional programming10.1145/1016850.1016872(150-161)Online publication date: 19-Sep-2004
  • (2004)Numbering mattersACM SIGPLAN Notices10.1145/1016848.101687239:9(150-161)Online publication date: 19-Sep-2004
  • (2003)Precision in practiceProceedings of the 12th international conference on Compiler construction10.5555/1765931.1765942(106-120)Online publication date: 7-Apr-2003
  • (2003)Type-preserving compilation of featherweight javaFoundations of Intrusion Tolerant Systems, 2003 [Organically Assured and Survivable Information Systems]10.1109/FITS.2003.1264927(35-59)Online publication date: 2003
  • (2001)Type-based hot swapping of running modules (extended abstract)ACM SIGPLAN Notices10.1145/507669.50764536:10(62-73)Online publication date: 1-Oct-2001
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  • (2001)Type elaboration and subtype completion for Java bytecodeACM Transactions on Programming Languages and Systems10.1145/383043.38304523:2(243-272)Online publication date: 1-Mar-2001
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