DIPs | xvm | |
---|---|---|
10 | 110 | |
156 | 190 | |
0.6% | 0.5% | |
5.8 | 9.8 | |
11 days ago | 2 days ago | |
D | Java | |
Creative Commons Zero v1.0 Universal | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
DIPs
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The OpenD Programming Language (fork of D)
The reference compiler, DMD, is open source: https://github.com/dlang/dmd
But they don't accept just any Pull Request or features the community submits, understandably. There's a process called DIP for language improvements: https://github.com/dlang/DIPs/blob/master/DIPs/README.md
However, by some accounts, it's really hard to get anything through.
Given D already has so many feature, I find that to be a good thing , to be honest, by not everyone agrees, of course.
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Mojo 🔥: A programming language for all AI developers
Borrow checking does not require lifetime annotations. D is a precedent there. Look at DIP25 and DIP1000.
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Carbon Language: An experimental successor to C++
There's no "nogc" containers in phobos, or allocators, or an idiomatic way to do safe manual memory management. It expects you to do it the C way. It's also impossible to implement some things because of how D does moving. There's a DIP in the works to change how moving works, but it's overly complicated and bound to introduce even more bugs. https://github.com/dlang/DIPs/blob/master/DIPs/DIP1040.md
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Is there any other programming language aside from C++ that has move semantics feature available?
D Is drafting up move semantics to interface better with C++. Although they're going a bit the Rust way in the current proposal. D has tried a couple of other strategies, but unique pointers and C++ interoperability kind of forced the hand of Walter Bright.
- Is D backwards compatible?
- PSC #025 2021-06-18 minutes - massive update on RFC processes and RFCs in flight
- Three situations regarding memory
- DIP1040: Copying, Moving, and Forwarding
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Things that you miss from your previous language?
String interpolation is coming: https://github.com/dlang/DIPs/blob/master/DIPs/DIP1036.md
- System variables: Protecting data for memory safety in unsafe code
xvm
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Implementing arrays (and hash tables and ..) in a minimal ML with a C API
Have a look at the ecstasy library for the language definitions of these types.
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Polymorphic static members
2) Funky interfaces: This is an Ecstasy interface that declares abstract static members (e.g. functions), which can then be implemented on any class and overridden on any sub-class, such that they can be invoked by type (instead of this), and virtually resolved (late bound at runtime) based on the type known at compile time. The best known example, of course, is Hashable, because it has to guarantee that a type implements both equals() and hashCode() on the same class, and the implementation is tied to the type, and not to the this. (C# added a similar feature last year in version 11.)
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How do you parse function calls?
I'm just going to warn you in advance that invocation is one of the hardest things in the compiler to make easy. In other words, the nicer your language's "developer experience" is around invocation, the more hell you're going to have to go through to get there. The AST nodes for Name( (NameExpression) and Invoke( (InvocationExpression) alone are 7kloc in the Ecstasy implementation, for example -- but the result is well worth it.
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What are some important differences between the popular versions of OOP (e.g. Java, Python) vs. the purist's versions of OOP (e.g. Smalltalk)?
Ecstasy uses message passing automatically behind the scenes for asynchronous calls, but the message passing isn't visible at the language level (i.e. there is no "message object" or something like that visible). Basically, all Ecstasy code is executing on a fiber inside a service, and services are all running concurrently, so from any service realm to any service realm, the communication is by message.
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Is your language solving a real world problem?
Regarding Ecstasy, we did not set out to build a new language; we actually set out to solve a real world problem. Specifically, we wanted to be able to dramatically improve the density of workloads in data centers, by at least two orders of magnitude in the case of lightly used applications. Our initial goal was to create a runtime design that would support 10,000 stateful application instances on a single server. Let's call it the "a10k" problem 🤣 ... a tribute to the c10k problem from 1999. We refer to our goal as "zero carbon compute", i.e. we want to push the power and hardware cost for an application to as close to zero as possible; you can't reach zero, but you can get close. If we succeed, we will help reduce the electricity used in data centers over the next few decades by a significant percentage.
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How do you tokenize multi char tokens.
Generally, left to right, one character at a time. If you’re looking for example code, here’s a simple hand-built lexer.
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Have you written your own language in itself yet?
Parts of Ecstasy are now implemented in Ecstasy. Here's the Lexer, for example.
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Top programming languages created in the 2010's on GitHub by stars
Ecstasy
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What languages have been created *specifically* for the purpose of being JIT-compiled?
Ecstasy and the xvm were designed assuming an adaptive runtime compiler (similar in concept to the Hotspot compiler for Java), but not necessarily using a JIT.
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What are you doing about async programming models? Best? Worst? Strengths? Weaknesses?
A Future reference has the various capabilities that you'd imagine, taking lambdas for thenDo(), whenComplete(), etc. The reference, in the above example, is a local variable, so you just obtain it using the C-style & operator:
What are some alternatives?
crubit
seed7 - Source code of Seed7
compact_str - A memory efficient string type that can store up to 24* bytes on the stack
list-exp - Regular expression-like syntax for list operations [Moved to: https://github.com/phenax/elxr]
peps - Python Enhancement Proposals
kuroko - Dialect of Python with explicit variable declaration and block scoping, with a lightweight and easy-to-embed bytecode compiler and interpreter.
intellij-dlanguage - Intellij Plugin for the D Programming Language
TablaM - The practical relational programing language for data-oriented applications
proposals - ✍️ Tracking the status of Babel's implementation of TC39 proposals (may be out of date)
ghc - Mirror of the Glasgow Haskell Compiler. Please submit issues and patches to GHC's Gitlab instance (https://gitlab.haskell.org/ghc/ghc). First time contributors are encouraged to get started with the newcomers info (https://gitlab.haskell.org/ghc/ghc/wikis/contributing).
carbon-lang - Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)
RustScript2 - RustScript is a functional scripting language with as much relation to Rust as Javascript has to Java.