A Type Theory for Krivine-Style Evaluation and Compilation

Abstract

This paper develops a type theory for Krivine-style evaluation and compilation. We first define a static type system for lambda terms where lambda abstraction is interpreted as a code to pop the “spine stack” and to continue execution. Higher-order feature is obtained by introducing a typing rule to convert a code to a closure. This is in contrast with the conventional type theory for the lambda calculus, where lambda abstraction always creates higher-order function. We then define a type system for Krivine-style low-level machine, and develops type-directed compilation from the term calculus to the Krivine-style machine. We establish that the compilation preserves both static and dynamic semantics. This type theoretical framework provides a proper basis to analyze various properties of compilation. To demonstrate the strength of our framework, we perform the above development for two versions of low-level machines, one of which statically determines the spine stack, and the other of which dynamically determines the spine stack using a runtime mark, and analyze their relative merit.

This work has been partially supported by Grant-in-aid for scientific research on basic research (B), no :15300006.