GdT programmation / séminaire IRILL / séminaire APRRSS

Tierless Web programming in ML


11/10/2018
Intervenant(s) : Gabriel Radanne (University of Freiburg)
Eliom is a dialect of OCaml for Web programming in which server and client pieces of code can be mixed in the same file using syntactic annotations. This allows to build a whole application as a single distributed program, in which it is possible to define in a composable way reusable widgets with both server and client behaviors. Eliom is type-safe, as it ensures that communications are well-behaved through novel language constructs that match the specificity of Web programming. Eliom is also efficient, it provides static slicing which separates client and server parts at compile time and avoids back-and-forth communications between the client and the server. Finally, Eliom supports modularity and encapsulation thanks to an extension of the OCaml module system featuring tierless annotations that specify whether some definitions should be on the server, on the client, or both. This thesis presents the design, the formalization and the implementation of the Eliom language.
Eliom is a dialect of OCaml for Web programming in which server and client pieces of code can be mixed in the same file using syntactic annotations. This allows to build a whole application as a single distributed program, in which it is possible to define in a composable way reusable widgets with both server and client behaviors. Eliom is type-safe, as it ensures that communications are well-behaved through novel language constructs that match the specificity of Web programming. Eliom is also efficient, it provides static slicing which separates client and server parts at compile time and avoids back-and-forth communications between the client and the server. Finally, Eliom supports modularity and encapsulation thanks to an extension of the OCaml module system featuring tierless annotations that specify whether some definitions should be on the server, on the client, or both. This thesis presents the design, the formalization and the implementation of the Eliom language.
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