Type-based hot swapping of running modules [Extended abstract]

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Abstract

While dynamic linking has become an integral part of the run-time execution of modern programming languages, there is increasing recognition of the need for support for hot swapping of running modules, particularly in long-lived server applications. The interesting challenge for such a facility is to allow the new module to change the types exported by the original module, while preserving type safety. This paper describes a type-based approach to hot swapping running modules. The approach is based on a reflective mechanism for dynamically adding type sharing constraints to the type system, realized by programmer-defined version adapters in the run-time.

Original languageEnglish
Pages (from-to)62-73
Number of pages12
JournalSIGPLAN Notices (ACM Special Interest Group on Programming Languages)
Volume36
Issue number10
DOIs
StatePublished - Oct 2001

Keywords

  • Dynamic Typing
  • Hot Swapping
  • Module Interconnection Languages
  • Shared Libraries

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