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Runtime Logger Selection in OCaml Using First-Class Modules
Package an OCaml module as a value and choose a logging backend at runtime without losing compile-time type checks.
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Package an OCaml module as a value and choose a logging backend at runtime without losing compile-time type checks.
OCaml's first-class module mechanism, mediated by `pack` and `unpack` expressions, introduces a documented constraint: the locally abstract type generated by `unpack` is intentionally confined to the expression scope to preserve type safety across alternative module implementations. This design enables dynamic dispatch and dependency injection but raises a p
Dependency Injection via Functors and First-Class Modules OCaml provides two primary mechanisms for implementing dependency injection: static functors and first-class modules. Functors allow for compile-time specialization of components based on a provided signature, ensuring strict type safety and optimization through static resolution. In contrast, first-c
OCaml's module system provides a mechanism for strong encapsulation through signatures and structures. While static module instantiation is the standard for type-safe abstraction, first-class modules allow modules to be treated as values, enabling dynamic selection of implementations at runtime. There is a design trade-off between the flexibility of first-cl
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