I am trying to compile the example fromhttps://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/blob/main/video/gtk4/examples/gtksink.py. I need to write it in Haskell and I'm currently stuck on thepaintable = gtksink.get_property('paintable')function written in Python....
2 Why does this Haskell statement work in GHCi but fail to compile? 3 Why is Integer inferred when the type variable should be ambiguous? 6 Lambda expression in haskell has different type 0 succ in Haskell: ambiguous type variable 5 Can I "return" Num a just like literals seem to be...
Haskell Haskell is the crown jewel of the Hindley-Milner family of languages. Fully exploiting laziness, Haskell comes closest to programming in pure mathematics of any major programming language. Recommended reading Learn You a Haskellby Lipovaca. Real World Haskell by O'Sullivan, Goerzen and Stewa...
In a type system without subtyping, I think it might be possible to express the type using an existential type—something like this, in pseudo-Haskell syntax: 1 cmpToKey :: (a -> a -> Bool) -> exists b. Ord b => (a -> b) This isn’t actually a legal Haskell type signature,...
There are certainly many small problems with GHC's Template Haskell support, but I would say that there is one fundamental design point which Racket got right and Haskell got wrong: Template Haskell does not sufficiently distinguish betweencompile-timeandrun-timephases. Confusion between these two ...
University may take false hope that I am on your side. You may think that the people arguing for Scheme, Haskell, and OCaml are elitists. Wrong. They do not have a problem. You are the one with a problem because you don’t want to tell all your friends you have a job as a ...
including Clang, the C/C++ compiler (hence the name, “C-lang”). Mono, the .NET implementation, has an option tocompile to native code using an LLVM back end. And Kotlin, nominally aJVM language, offers a compiler technology calledKotlin/Nativethat uses LLVM to compile to machi...
Haskell: A direct port of the original tutorial. Python: One such port follows the tutorial closely, while the other is a more ambitious rewrite with an interactive command line. Both of those use llvmlite as the bindings to LLVM. Rust and Swift: It seemed inevitable we’d get ports of ...
Compile Time Error Checking One of my pet peeves when I worked on a large amount of vanilla JavaScript code was that a simple typo in a variable name would cause me hours of debugging. Because when you type something like: 1 countr = 1; ...
‘Real World Haskell‘ certainly helped me a lot to understand the latter. Haskellis an incredibly interesting language because of the concepts it adopted and types it provides, but it does require an immediate mind switch when coming from a non-OOP world (I once spent about 2 hours to ...