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dmd D Programming Language compiler

93 mentions on Hacker News by 33 people: 9 stories, 84 comments · first 2011-06-15 · latest 2026-08-23

Mentions per year 93 mentions · busiest year 2020 (17)
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  1. …but because the compiler authors care about compilation speed: Lexer skips four spaces at once https://github.com/dlang/dmd/pull/11095 Optimize core logic to 7x compilation speed of language feature https://github.com/dlang/dmd/pull/11303…
    comment by crazypython · 2020-07-11 · in Linux kernel in-tree Rust support
  2. I'm still regularly refactoring code I initially wrote 35 years ago. https://github.com/dlang/dmd/pull/11301
    comment by WalterBright · 2020-07-02 · in Things I wish I had known when I started programming, Part 4 (2019)
  3. I constantly refactor my code, even the ancient stuff. Here's my most recent one: https://github.com/dlang/dmd/pull/11202 which changes a data structure from a linked list to an array.
    comment by WalterBright · 2020-06-03 · in Refactor vs. Rewrite
  4. Use dmd master and you will have printf/scanf format argument validation [0]. [0] https://github.com/dlang/dmd/pull/10852
    comment by arunc · 2020-04-28 · in Better C – A subset of D Programming Language
  5. I don't remember how long it took me to do the spell checker challenge: https://github.com/dlang/dmd/blob/master/src/dmd/root/spelle... but I'm sure it was much longer than it took Peter. This checker is used by the D compiler to look for…
    comment by WalterBright · 2020-02-18 · in The Myth of the Myth of the 10x Programmer
  6. D is also getting an Ownership/Borrowing system: https://github.com/dlang/dmd/pull/10747
    comment by WalterBright · 2020-01-28 · in Wc in D: 712 Characters Without a Single Branch
  7. …a tool. And some good news, the first stage of D's Ownership/Borrowing system was pulled today! https://github.com/dlang/dmd/pull/10586
    comment by WalterBright · 2020-01-17 · in A Sad Day for Rust
  8. A prototype for the O/B system: https://github.com/dlang/dmd/pull/10586
    comment by WalterBright · 2020-01-08 · in Specification for the D Programming Language
  9. …system memory safety is in the works for D. There's a prototype of it as a Pull Request: https://github.com/dlang/dmd/pull/10586
    comment by WalterBright · 2020-01-08 · in Specification for the D Programming Language
  10. Here's a piece I was proud of 20 years ago. Can you count all the ways it's a steaming pile? https://github.com/dlang/dmd/blob/master/src/dmd/root/outbuf... I've recently fixed a number of its problems, but it's got a ways to go. Am…
    comment by WalterBright · 2019-10-09 · in Habits of Expert Software Designers
  11. …of disallowing more than one mutable pointer to the same variable being passed to a function: https://github.com/dlang/dmd/pull/10249 It's hard to tell in advance what effect this will have on the existing D user code base.
    comment by WalterBright · 2019-08-02 · in John Carmack on Parallel Implementations (2018)
  12. I'm still running/maintaining code I originally wrote in the 1980's. https://github.com/dlang/dmd/tree/master/src/dmd/backend
    comment by WalterBright · 2019-07-20 · in What senior engineers do: fix knowledge holes
  13. …program. Here's some code that initializes an array at compile time with a non-trivial computation: https://github.com/dlang/dmd/blob/master/src/dmd/backend/var... This used to be initialized by a separate program that generated some .d…
    comment by WalterBright · 2019-07-16 · in Ownership and Borrowing in D
  14. …about dlang. I got the compiler flags from googling and happening upon the test case in this PR https://github.com/dlang/dmd/pull/8504/files#diff-bb6a3ed8a5... )
    comment by Arnavion · 2019-04-20 · in The Power of Lifetimes
  15. …(1) and (2), you'd have been better off just writing a custom one. Here are D's lexer and parser: https://github.com/dlang/dmd/blob/master/src/dmd/lexer.d https://github.com/dlang/dmd/blob/master/src/dmd/parse.d For a complex language like…
    comment by WalterBright · 2019-02-24 · in A meta approach to implementing programming languages (2018)
  16. I like how main() can still be found in mars.d[1]. 1. https://github.com/dlang/dmd/blob/master/src/dmd/mars.d#L909
    comment by eco · 2018-12-05 · in Using D to Create the World’s Fastest File System
  17. …the least restrictive license we could find. We aren't going to switch to a more restrictive one. https://github.com/dlang/dmd/blob/master/LICENSE.txt
    comment by WalterBright · 2018-08-22 · in The Commons Clause is an existential threat to open source
  18. …it does require arbitrary lookahead. It still isn't hard to parse, and the parser fits in one file: https://github.com/dlang/dmd/blob/master/src/dmd/parse.d
    comment by WalterBright · 2018-08-20 · in Is Lisp Still Unique? Or at Least Different? (2002)
  19. …worked on it until it was flawless, then ran it overnight and did the transition all at once: https://github.com/dlang/dmd/pull/4923 I think the Go compiler did something similar. It certainly requires iteration of continuously attempting…
    comment by trishume · 2018-06-20 · in How an Engineering Company Chose to Migrate to D
  20. Rather than debate, here's an example of replacing goto's with a nested function: https://github.com/dlang/dmd/pull/6656/files
    comment by WalterBright · 2018-05-11 · in The Evolution of C Programming Practices: A Study of Unix (2016) [pdf]
  21. …in gcc will now be GPL(v?) licensed? This is certainly possible since dmd is licensed permissively. https://github.com/dlang/dmd/blob/master/LICENSE.txt I don't mean this to start a fight over licenses I'm just curious how it works when…
    comment by CogitoCogito · 2017-06-21 · in D Language accepted for inclusion in GCC
  22. And best of all, it's the Boost license! Here it is: https://github.com/dlang/dmd/pull/6680
    comment by WalterBright · 2017-04-07 · in The reference D compiler is now open source
  23. Here's how the dmd D compiler does it: https://github.com/dlang/dmd/blob/master/src/backend/divcoef...
    comment by WalterBright · 2017-02-20 · in How do compilers optimize divisions?
  24. …into them and their associated tools. It's still fun watching a new optimization rumble into life: https://github.com/dlang/dmd/pull/6176 (Yes I know some other compilers do that already.) It's fun knowing how it all works from the source…
    comment by WalterBright · 2016-10-07 · in Reflections of an “Old” Programmer
  25. …recently renamed https://github.com/D-Programming-Language to https://github.com/dlang , and e.g. https://github.com/D-Programming-Language/dmd redirects in the same way.
    comment by CyberShadow · 2016-08-31 · in Smaller and faster data compression with Zstandard
  26. Here's one: https://github.com/D-Programming-Language/dmd/pull/4381/file... It's not even that big, and it's nearly impossible to scroll it.
    comment by WalterBright · 2015-02-26 · in The birth of Microsoft's new web rendering engine
  27. …is a bit too big. You'd know better than I, but it looks like this is the round-up algorithm: https://github.com/D-Programming-Language/dmd/blob/master/sr...
    comment by simonster · 2014-09-25 · in Faster Unsigned Division by Constants (2011)
  28. I think all modern compilers do this now. I know the D compiler does: https://github.com/D-Programming-Language/dmd/blob/master/sr...
    comment by WalterBright · 2014-09-25 · in Faster Unsigned Division by Constants (2011)
  29. Seems to be open source now: https://github.com/D-Programming-Language/dmd
    comment by eranation · 2014-05-03 · in Ask HN: Why isn't D more popular?
  30. …want to figure out how to write a lexer or parser, what better way than to read the code for one? https://github.com/D-Programming-Language/dmd/blob/master/sr... https://github.com/D-Programming-Language/dmd/blob/master/sr... There's a lot…
    comment by WalterBright · 2014-02-05 · in So you want to write your own language?
  31. …and codegen) is not. The source code is available but you are not allowed to redistribute it. https://github.com/D-Programming-Language/dmd/blob/master/sr... (I wonder if you are allowed to fork it on GitHub.)
    comment by albertzeyer · 2013-10-11 · in Facebook is using D in production starting today
  32. …of the compiler's work goes even faster. The top cycle sucker is Lexer::scan(). Here's the source: https://github.com/D-Programming-Language/dmd/blob/master/sr... See line 440. It's entirely possible I've missed something glaringly obvious…
    comment by WalterBright · 2013-07-25 · in Increasing the D Compiler Speed by Over 75%
  33. Parts of the D compiler were written in 1982-3 and are still in use. https://github.com/D-Programming-Language/dmd 30 years! It's sorta like our genes carry bits and pieces of the animals we evolved from millennia ago.
    comment by WalterBright · 2012-03-29 · in Prince of Persia creator finds lost source code 23 years later
  34. …the D programming language compiler could use your help in improving its optimizations. https://github.com/D-Programming-Language/dmd
    comment by WalterBright · 2011-06-15 · in Pentium Appendix H fiasco