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- Vincent Balat, Roberto Di Cosmo, Marcelo P. Fiore
- POPL
- 2004

We present a notion of η-long β-normal term for the typed lambda calculus with sums and prove, using Grothendieck logical relations, that every term is equivalent to one in normal form. Based on this development we give the first type-directed partial evaluator that constructs %able to construct normal forms of terms in this calculus.

- Vincent Balat, Jérôme Vouillon, Boris Yakobowski
- ICFP
- 2009

The evolution of Web sites towards very dynamic applications makes it necessary to reconsider current Web programming technologies. We believe that Web development would benefit greatly from more abstract paradigms and that a more semantical approach would result in huge gains in expressiveness. In particular, functional programming provides a really… (More)

- Vincent Balat
- 2002

- Marcelo P. Fiore, Roberto Di Cosmo, Vincent Balat
- LICS
- 2002

Tarski asked whether the arithmetic identities taught in high school are complete for showing all arithmetic equations valid for the natural numbers. The answer to this question for the language of arithmetic expressions using a constant for the number one and the operations of product and exponentiation is affirmative, and the complete equational theory… (More)

- Vincent Balat, Olivier Danvy
- GPCE
- 2002

We use a code generator—type-directed partial evaluation— to verify conversions between isomorphic types, or more precisely to verify that a composite function is the identity function at some complicated type. A typed functional language such as ML provides a natural support to express the functions and type-directed partial evaluation provides a… (More)

- Vincent Balat
- ML
- 2006

Ocsigen is a framework for programming highly dynamic web sites in Objective Caml. It allows to program sites as Ocaml applications and introduces new concepts to take into account the particularities of Web interaction, especially the management of URLs and sessions. This paper describes how Ocsigen uses the Objective Caml type system in a thoroughgoing… (More)

- Vincent Balat, Olivier Danvy
- Types in Compilation
- 1998

We investigate the synergy between type-directed partial evaluation and run-time code generation for the Caml dialect of ML. Typedirected partial evaluation maps simply typed, closed Caml values to a representation of their long βη-normal form. Caml uses a virtual machine and has the capability to load byte code at run time. Representing the long βη-normal… (More)

- Jérôme Vouillon, Vincent Balat
- Softw., Pract. Exper.
- 2014

We present the design and implementation of a compiler from OCaml bytecode to JavaScript. The compiler first translate the bytecode into an SSA intermediate representation on which optimizations are performed, before generating JavaScript. We believe that taking bytecode as input instead of a high-level language is a sensible choice. Virtual machines… (More)

The Ocsigen framework offers a new way to develop sophisticated client-server Web applications. It makes it possible to write as a single program both the server and client sides of a Web application, thus simplifying a lot communications and data transfers, and avoiding code duplications. It also proposes a wide set of high level concepts to program… (More)

- Vincent Balat
- 2004

This paper presents a normalization tool for the λcalculus with sum types, based on the technique of normalization by evaluation, and more precisely techniques developed by Olivier Danvy for partial evaluation, using control operators. The main characteristic of this work is that it produces a result in a canonical form. That is to say: two βη-equivalent… (More)