TY  - JOUR
U1  - Zeitschriftenartikel, wissenschaftlich - nicht begutachtet (unreviewed)
A1  - Sulzmann, Martin
A1  - Wehr, Stefan
T1  - A Type-Directed, Dictionary-Passing Translation of Featherweight Generic Go
N2  - Featherweight Generic Go (FGG) is a minimal core calculus modeling the essential features of the programming language Go. It includes support for overloaded methods, interface types, structural subtyping and generics. The most straightforward semantic description of the dynamic behavior of FGG programs is to resolve method calls based on runtime type information of the receiver.
This article shows a different approach by defining a type-directed translation from FGG to an untyped lambda-calculus. The translation of an FGG program provides evidence for the availability of methods as additional dictionary parameters, similar to the dictionary-passing approach known from Haskell type classes. Then, method calls can be resolved by a simple lookup of the method definition in the dictionary.
Every program in the image of the translation has the same dynamic semantics as its source FGG program. The proof of this result is based on a syntactic, step-indexed logical relation. The step-index ensures a well-founded definition of the relation in the presence of recursive interface types and recursive methods.
KW  - Programming Languages
Y1  - 2022
UR  - https://www.researchgate.net/publication/363667195
U6  - https://doi.org/10.48550/arXiv.2209.08511
DO  - https://doi.org/10.48550/arXiv.2209.08511
AX  - 2209.08511v1
AX  - 2209.08511
N1  - Preprint, submitted to JFP
SP  - 58
S1  - 58
ER  -