Showing 31 open source projects for "type"

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  • 1
    IHP

    IHP

    The fastest way to build type safe web apps

    ...IHP is a batteries-included web framework, optimized for longterm productivity and programmer happiness. With IHP all your application code is written in Haskell - a functional programming language with an incredible type system, used by giants such as GitHub and Facebook. Thanks to Haskell's impressive type system you can write code that is far more robust than you have seen before.
    Downloads: 2 This Week
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  • 2
    Carp

    Carp

    A functional, systems programming language with linear types

    Carp is a statically typed, functional programming language designed for real-time and systems programming. It features a Lisp-like syntax, strong compile-time checks, and linear type semantics that ensure memory safety without a garbage collector. Carp targets C as its backend, generating performant and predictable native code while offering functional abstractions and interactive development via REPL.
    Downloads: 9 This Week
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  • 3
    Beam

    Beam

    A type-safe, non-TH Haskell SQL library and ORM

    Beam is a Haskell interface to relational databases. Beam uses the Haskell type system to verify that queries are type-safe before sending them to the database server. Queries are written in a straightforward, natural monadic syntax. Combinators are provided for all standard SQL92 features, and a significant subset of SQL99, SQL2003, and SQL2008 features. Beam is standards-compliant but not naive. We recognize that different database backends provide different guarantees, syntaxes, and advantages. ...
    Downloads: 1 This Week
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  • 4
    Agda

    Agda

    Agda is a dependently typed programming language

    Agda is a dependently typed, total functional programming language and interactive theorem prover based on Martin-Löf’s type theory. It allows expressing programs and proofs in the same language, using the Curry–Howard correspondence. It features interactive development via Emacs, Atom, or VS Code. Agda is a dependently typed functional programming language. It has inductive families, i.e., data types which depend on values, such as the type of vectors of a given length. ...
    Downloads: 3 This Week
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  • 5
    koka

    koka

    Koka language compiler and interpreter

    Koka is a strongly typed functional-style language with effect types and handlers. The core of Koka consists of a small set of well-studied language features, like first-class functions, a polymorphic type- and effect system, algebraic data types, and effect handlers. Each of these is composable and avoid the addition of “special” extensions by being as general as possible. Koka tracks the (side) effects of every function in its type, where pure and effectful computations are distinguished. The precise effect typing gives Koka rock-solid semantics backed by well-studied category theory, which makes Koka particularly easy to reason about for both humans and compilers. ...
    Downloads: 3 This Week
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  • 6
    Servant

    Servant

    Haskell DSL for describing, serving, querying, mocking web apps

    Servant provides a type-level domain-specific language (DSL) in Haskell for describing web APIs. From a single API specification, developers can derive server implementations, client libraries, documentation, and more—ensuring consistency and type safety across the stack. We have a tutorial that introduces the core features of servant. After this article, you should be able to write your first server web services, learning the rest from the haddocks' examples.
    Downloads: 0 This Week
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  • 7
    miso

    miso

    A tasty Haskell front-end framework

    ...It features a virtual-dom, recursive diffing / patching algorithm, attribute and property normalization, event delegation, event batching, SVG, Server-sent events, Websockets, type-safe servant-style routing and an extensible Subscription-based subsystem. Inspired by Elm, Redux and Bobril. Miso is pure by default, but side effects (like XHR) can be introduced into the system via the Effect data type. Miso makes heavy use of the GHCJS FFI and therefore has minimal dependencies. Miso can be considered a shallow embedded domain-specific language for modern web programming.
    Downloads: 2 This Week
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  • 8
    optparse-applicative

    optparse-applicative

    Applicative option parser

    optparse-applicative is a haskell library for parsing options on the command line, and providing a powerful applicative interface for composing them. optparse-applicative takes care of reading and validating the arguments passed to the command line, handling and reporting errors, generating a usage line, a comprehensive help screen, and enabling context-sensitive bash, zsh, and fish completions. A value of type Parser a represents a specification for a set of options, which will yield a value of type a when the command line arguments are successfully parsed. If you are familiar with parser combinator libraries like parsec, attoparsec, or the json parser aeson you will feel right at home with optparse-applicative. If not, don't worry! All you really need to learn are a few basic parsers, and how to compose them as instances of Applicative and Alternative.
    Downloads: 0 This Week
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  • 9
    BSC

    BSC

    Bluespec Compiler (BSC)

    BSC is the open source compiler toolchain for Bluespec SystemVerilog, a high-level, rule-based hardware design language. It translates Bluespec descriptions into synthesizable Verilog, letting developers bring typed, modular abstractions into mainstream FPGA/ASIC flows. The compiler performs scheduling of atomic rules, elaborates parameterized modules, and enforces interface contracts, producing predictable RTL that integrates with existing EDA tools. A companion simulator enables fast...
    Downloads: 10 This Week
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  • 10
    PureScript

    PureScript

    A strongly-typed language that compiles to JavaScript

    ...Build real-world applications using functional techniques and expressive types, such as: Algebraic data types and pattern matching. Row polymorphism and extensible records. Higher kinded types and type classes with functional dependencies, as well as higher-rank polymorphism. Precompiled binaries are available for OSX, Linux, and Windows. The Pursuit package database hosts searchable documentation for PureScript packages. The recommended build tool for PureScript is Spago, which can be installed using npm.
    Downloads: 3 This Week
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  • 11
    The Futhark Programming Language

    The Futhark Programming Language

    A data-parallel functional programming language

    ...The language supports regular nested data-parallelism, as well as a form of imperative-style in-place modification of arrays, while still preserving the purity of the language via the use of a uniqueness type system. While the Futhark language and compiler is an ongoing research project, it is quite usable for real programming and can compile nontrivial programs which then run on real machines at high speed.
    Downloads: 1 This Week
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  • 12
    Gitit

    Gitit

    A wiki using HAppS, pandoc, and git

    ...Gitit assumes that the page files (stored in the git repository) are encoded as UTF-8. Even page names may be UTF-8 if the file system supports this. So you should make sure that you are using a UTF-8 locale when running gitit. (To check this, type locale.) The metadata block consists of a list of key-value pairs, each on a separate line. If needed, the value can be continued on one or more additional line, which must begin with a space.
    Downloads: 0 This Week
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  • 13
    Hasktorch

    Hasktorch

    Tensors and neural networks in Haskell

    Hasktorch is a powerful Haskell library for tensor computation and neural network modeling, built on top of libtorch (the backend of PyTorch). It brings differentiable programming, automatic differentiation, and efficient tensor operations into Haskell’s strongly typed functional paradigm. This project is in active development, so expect changes to the library API as it evolves. We would like to invite new users to join our Hasktorch discord space for questions and discussions....
    Downloads: 6 This Week
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  • 14
    Obelisk

    Obelisk

    Functional reactive web and mobile applications, with batteries

    ...In minutes you can go from an empty directory to an interactive application that works on web, iOS, and Android, all sharing the same Haskell codebase! Obelisk's development environment also enables extremely rapid development and feedback. You can take advantage of Haskell's type system across the frontend and backend boundary. This means changes to your backend that would break your frontend are immediately detected during development and vice versa. Obelisk uses Haskell's compiler to give you a complete "TODO list" of what needs to be updated.
    Downloads: 0 This Week
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  • 15
    Elm

    Elm

    Compiler for Elm, a functional language for reliable webapps

    Elm uses type inference to detect corner cases and give friendly hints. NoRedInk switched to Elm about four years ago, and 300k+ lines later, they still have not had to scramble to fix a confusing runtime exception in production. The compiler guides you safely through your changes, ensuring confidence even through the most wide-reaching refactorings in unfamiliar codebases.
    Downloads: 2 This Week
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  • 16
    Kitten

    Kitten

    A statically typed concatenative systems programming language

    ...The implementation targets efficient compiled code and investigates how advanced type systems can improve reliability in a stack-based language. As a research project, Kitten serves both as a language to experiment with and as a vehicle for ideas about safety and structure in concatenative programming.
    Downloads: 1 This Week
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  • 17
    Polysemy

    Polysemy

    Higher-order, no-boilerplate monads

    ...Unlike traditional monad transformer stacks, Polysemy uses a modern approach based on freer monads and interpreters, allowing developers to define, compose, and interpret effects in a more modular and testable way. It aims to offer both flexibility and performance without sacrificing type safety or expressiveness.
    Downloads: 3 This Week
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  • 18
    Scotty

    Scotty

    Haskell web framework inspired by Ruby's Sinatra, using WAI and Warp

    Scotty is a lightweight Haskell web framework inspired by Ruby’s Sinatra. It allows developers to build RESTful web applications and APIs with minimal boilerplate. Scotty is built on top of the WAI (Web Application Interface) and Warp server, making it fast and scalable. It emphasizes simplicity and ease of use, making it ideal for small- to medium-sized services or for developers learning web programming in Haskell.
    Downloads: 0 This Week
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  • 19
    Yesod

    Yesod

    A RESTful Haskell web framework built on WAI

    Yesod is a high-performance web framework for Haskell focused on enabling productive development of type-safe, RESTful web applications. It leverages Haskell's strong static typing, compile-time safety checks, Template Haskell, and domain-specific quasiquoters to ensure high reliability and performance. Safety & security guaranteed at compile time. Developer productivity: tools for all your basic web development needs. Raw performance, fast, compiled code.
    Downloads: 1 This Week
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  • 20
    Accelerate

    Accelerate

    Embedded language for high-performance array computations

    ...Embedded in the advanced functional programming language Haskell, Accelerate programs are declarative, statically-typed, pure, functional, and ready to exploit all of the performance of modern parallel hardware. The combination of a strong type system, high-level code, and interactive development environment, allows you to develop code quickly with the confidence that it is correct.
    Downloads: 0 This Week
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  • 21
    Idris-dev

    Idris-dev

    A Dependently Typed Functional Programming Language

    Idris‑dev is the development version of Idris 1, a general-purpose functional programming language featuring full dependent types, designed for writing type-safe programs and proofs within the language itself. It compiles to C and JavaScript (for Node.js and browsers), and supports code generation via substitute backends. This repository represents the latest development version of the language, and may contain bugs that are being actively worked on. For those who wish to use a more stable version of Idris please consider installing the latest version that has been released on Hackage. ...
    Downloads: 0 This Week
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  • 22
    Haskell IDE Engine (HIE)

    Haskell IDE Engine (HIE)

    The engine for haskell ide-integration. Not an IDE

    ...Uses LSP, so should be easy to integrate with a wide selection of editors. Diagnostics via hlint and GHC warnings/errors. Code actions and quick fixes via apply-refact. Type information and documentation(via haddock) on hover. Jump to definition.
    Downloads: 0 This Week
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  • 23
    Fay

    Fay

    A proper subset of Haskell that compiles to JavaScript

    Fay is a compiler for a proper subset of Haskell that type-checks using GHC and compiles to JavaScript. It supports pure functional programming, a Fay-specific monad, FFI, optional tail-call optimization, and integration with Cabal packages. GHC-compatible type checking, ensuring correctness. Lazy, pure functional semantics with a distinct Fay monad. Foreign Function Interface (FFI) to integrate native JS code.
    Downloads: 0 This Week
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  • 24
    turtle

    turtle

    Shell programming, Haskell style

    Turtle is a reimplementation of the Unix command line environment in Haskell so that you can use Haskell as a scripting language or a shell. Think of turtle as coreutils embedded within the Haskell language. The turtle library focuses on being a "better Bash" by providing a typed and light-weight shell scripting experience embedded within the Haskell language. If you have a large shell script that is difficult to maintain, consider translating it to a "turtle script" (i.e. a Haskell script...
    Downloads: 0 This Week
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  • 25
    Eta

    Eta

    The Eta Programming Language, a dialect of Haskell on the JVM

    ...Eta's concurrency support helps you to build highly scalable systems. Eta has a strongly-typed Foreign Function Interface (FFI) that allows you to safely interoperate with Java. Eta has global type inference, giving you a dynamic language experience, but with a strong typing hidden underneath. Eta offers a wide range of strategies for handling concurrency including Software Transaction Memory (STM), MVars, and Fibers. Using the powerful and type-safe Servant web framework, we define our API as a type and the handler types for each endpoint are automatically generated and conversions happen automatically.
    Downloads: 0 This Week
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