Computer Science Department
School of Computer Science, Carnegie Mellon University
A Type System for Higher-Order Modules
(Expanded Version)
Derek Dreyer, Karl Crary, Robert Harper
December 2002
This reports refines and supersedes the original version
published in July 2002 as
Computer Science Technical Report CMU-CS-02-122.
CMU-CS-02-122R.ps
CMU-CS-02-122R.pdf
We present a type theory for higher-order modules that accounts for many
central issues in module system design, including translucency, applicativity,
generativity, and modules as first-class values. Our type system harmonizes
design elements from previous work, resulting in a simple, economical account
of modular programming. The main unifying principle is the treatment of
abstraction mechanisms as computational effects. Our language is the first to
provide a complete and practical formalization of all of these critical issues
in module system design.
57 pages
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