Julia (programming language): Difference between revisions

Revision as of 08:31, 8 June 2025

Revision as of 14:00, 13 June 2025

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The REPL can be extended with additional modes, and has been with packages, e.g. with an [[SQL]] mode,<ref>{{Cite web |first=Chris |last=Foster |title=SQLREPL.jl |website=[[GitHub]] |date=2022-04-04 |url=https://github.com/c42f/SQLREPL.jl |access-date=2022-09-27 |archive-date=27 September 2022 |archive-url=https://web.archive.org/web/20220927085821/https://github.com/c42f/SQLREPL.jl |url-status=live }}</ref> for database access, and ''RCall.jl'' adds an {{nowrap|R mode}}, to work with the [[R (programming language)|R language]].<ref>{{Cite web |title=Getting Started · RCall.jl |url=https://juliainterop.github.io/RCall.jl/latest/gettingstarted.html#Several-Ways-to-use-RCall-1 |access-date=2022-09-27 |website=juliainterop.github.io |archive-date=4 September 2024 |archive-url=https://web.archive.org/web/20240904035201/https://juliainterop.github.io/RCall.jl/latest/gettingstarted.html#Several-Ways-to-use-RCall-1 |url-status=live }}</ref>

Julia's [[Visual Studio Code]] extension provides a fully- featured [[integrated development environment]] with "built-in dynamic autocompletion, inline results, plot pane, integrated REPL, variable view, code navigation, and many other advanced language features"<ref>{{Cite news |title=Julia in Visual Studio Code |url=https://code.visualstudio.com/docs/languages/julia}}</ref> e.g. debugging is possible, [[lint (software)|linting]], and [[profiling (computer programming)|profiling]].<ref>{{Cite web|last=Holy|first=Tim|title=GitHub - timholy/ProfileView.jl: Visualization of Julia profiling data.|website=[[GitHub]]|date=2019-09-13|url=https://github.com/timholy/ProfileView.jl|access-date=2019-09-22|archive-date=31 January 2020|archive-url=https://web.archive.org/web/20200131231452/https://github.com/timholy/ProfileView.jl|url-status=live}}</ref><ref>{{Cite web|last=Gregg|first=Brendan|title=GitHub - brendangregg/FlameGraph: Stack trace visualizer.|website=[[GitHub]]|date=2019-09-20|url=https://github.com/brendangregg/FlameGraph|access-date=2019-09-22|archive-date=26 September 2019|archive-url=https://web.archive.org/web/20190926230048/https://github.com/brendangregg/FlameGraph|url-status=live}}</ref><ref>{{Cite web|url=https://julialang.org/blog/2019/03/debuggers|title=A Julia interpreter and debugger|website=julialang.org|access-date=2019-04-10}}</ref><ref>{{Cite web|url=https://timholy.github.io/Rebugger.jl/dev/|title=Home · Rebugger.jl|website=timholy.github.io|access-date=2019-04-10|archive-date=31 March 2019|archive-url=https://web.archive.org/web/20190331171846/https://timholy.github.io/Rebugger.jl/dev/|url-status=live}}</ref>

===Use with other languages===

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==Implementation==

Julia's core is implemented in Julia and [[C (programming language)|C]],<!-- C99, except for 0.4 needing C11 because of static asserts --> together with [[C++]] for the [[LLVM]] dependency. The code parsing, code-lowering, and bootstrapping were implemented in FemtoLisp, a [[Scheme (programming language)|Scheme]] dialect, up to version 1.10.<ref name="JeffBezanson 2019">{{Cite web | first=Jeff | last=Bezanson | title=JeffBezanson/femtolisp | website=GitHub | date=6 June 2019 | url=https://github.com/JeffBezanson/femtolisp | access-date=16 June 2019 | archive-date=22 December 2022 | archive-url=https://web.archive.org/web/20221222170835/https://github.com/JeffBezanson/femtolisp | url-status=live }}</ref> Since that version the new pure-Julia stdlib package ''JuliaSyntax.jl'' is used for the parsing (while the old one can still be chosen)<ref>{{Cite web |title=JuliaSyntax |date=2022-08-28 |url=https://github.com/JuliaLang/JuliaSyntax.jl |publisher=The Julia Programming Language |access-date=2022-08-28 |archive-date=28 August 2022 |archive-url=https://web.archive.org/web/20220828185806/https://github.com/JuliaLang/JuliaSyntax.jl |url-status=live }}</ref> which improves speed and "greatly improves parser error messages in various cases".<ref>{{Cite web |title=Enable JuliaSyntax.jl as an alternative Julia parser by c42f · Pull Request #46372 · JuliaLang/julia |url=https://github.com/JuliaLang/julia/pull/46372 |access-date=2022-08-28 |website=GitHub |language=en |archive-date=28 August 2022 |archive-url=https://web.archive.org/web/20220828185805/https://github.com/JuliaLang/julia/pull/46372 |url-status=live }}</ref> The LLVM compiler infrastructure project is used as the [[Compiler#Back end|back end]] for generating optimized [[machine code]] for all commonly- used platforms. With some exceptions, the [[standard library]] is implemented in Julia.

===Current and future platforms===