ted.neward@newardassociates.com | Blog: http://blogs.newardassociates.com | Github: tedneward | LinkedIn: tedneward
explore a few languages
discuss why they're "next-generation"
do some speculation and futurism
... because all our mainstream languages are old
... because productivity gains with elevated abstractions
... because functional programming couldn't get out of its own way
Julia: dynamically-typed high-performance general-pupose
Crystal: statically-typed Ruby-esque general-purpose
Jolie: service-oriented
Wing: cloud-oriented
Wasp: full-stack web app
Mint: web-oriented
This is a "survey talk"
we want to cover a bunch of languages
in less than an hour
hello, here it is, goodbye
very happy to discuss any of these afterwards
The point here is "to know what you don't know"
... and give you some signposts for exploring
... and maybe give a talk at a future conference!
https://julialang.org/
compiled (via LLVM)
complex and rational numbers
object-oriented and functional via multiple dispatch
dynamically-typed
parallel, async, multithreaded processing
implicit distribution capabilities
metaprogramming (code is data is code)
Julia distributed invocations
$ julia -p 2
julia> r = remotecall(rand, 2, 2, 2)
Future(2, 1, 4, nothing)
julia> s = @spawnat 2 1 .+ fetch(r)
Future(2, 1, 5, nothing)
julia> fetch(s)
2×2 Array{Float64,2}:
1.18526 1.50912
1.16296 1.60607
With some interesting metaprogramming support
julia> ex1 = Meta.parse("1 + 1")
:(1 + 1)
julia> dump(ex1)
Expr
head: Symbol call
args: Array{Any}((3,))
1: Symbol +
2: Int64 1
3: Int64 1
julia> ex2 = Expr(:call, :+, 1, 1)
:(1 + 1)
julia> ex1 == ex2
true
julia>
Hosting Julia in native code
#include <julia.h>
JULIA_DEFINE_FAST_TLS
int main(int argc, char *argv[])
{
jl_init();
/* run Julia commands */
jl_eval_string("print(sqrt(2.0))");
jl_atexit_hook(0);
return 0;
}
$ gcc -o test -fPIC -I$JULIA_DIR/include/julia -L$JULIA_DIR/lib
-Wl,-rpath,$JULIA_DIR/lib test.c -ljulia
Homebrew (macOS, Linux): brew install julia
Chocolatey (Windows): choco install julia
Downloads: https://julialang.org/downloads/
Build from source: https://github.com/JuliaLang/julia
Hello, world
println("Hello, world!")
Run
julia hello.jl
Or run interactively
$ julia
_
_ _ _(_)_ | Documentation: https://docs.julialang.org
(_) | (_) (_) |
_ _ _| |_ __ _ | Type "?" for help, "]?" for Pkg help.
| | | | | | |/ _` | |
| | |_| | | | (_| | | Version 1.9.1 (2023-06-07)
_/ |\__'_|_|_|\__'_| | Official https://julialang.org/ release
|__/ |
julia> print("Hello world")
Hello world
julia>
--project=dir: Set dir as the home project/environment
-p/--procs: Launches N additional local worker processes
--machine-file file: Run processes on hosts listed in file
type-inferencing helps keep syntax clean
metaprogramming (code as data)
strong math/science features/ecosystem
performance of native (LLVM)
interoperability across other LLVM-based platforms (GraalVM, etc)
clear embedding API--viable scripting engine
https://crystal-lang.org/
web playground: https://play.crystal-lang.org/#/cr
native compilation (via LLVM)
heavily Ruby-inspired syntax
statically type-checked, type-inferenced
non-nillable types (compile-time nil checks)
macro metaprogramming system
An HTTP server
require "http/server"
server = HTTP::Server.new do |context|
context.response.content_type = "text/plain"
context.response.print "Hello world! The time is #{Time.local}"
end
address = server.bind_tcp 8080
puts "Listening on http://#{address}"
server.listen
https://crystal-lang.org/install/
Online playground: https://play.crystal-lang.org/#/cr
Download: https://crystal-lang.org/install/from_targz
Package managers:
Homebrew/Linuxbrew: brew install crystal-lang
Ubuntu: curl -fsSL https://crystal-lang.org/install.sh | sudo bash
From sources: https://crystal-lang.org/install/from_sources/
self-hosting, so you need Crystal to build Crystal
Create a project
crystal init app hello
Hello, world: src/hello.cr
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1.638-.54.315-.322.527-.827.617-1.553.117-.935-.037-1.395-.241-1.614Zm4.155-.297c-1.044-.116-1.488.091-1.681.297-.204.219-.359.679-.242 1.614.091.726.303 1.231.618 1.553.299.305.784.54 1.638.54.922 0 1.28-.198 1.442-.379.179-.2.308-.578.308-1.371 0-.765-.123-1.242-.37-1.554-.233-.296-.693-.587-1.713-.7Z"></path><path d="M6.25 9.037a.75.75 0 0 1 .75.75v1.501a.75.75 0 0 1-1.5 0V9.787a.75.75 0 0 1 .75-.75Zm4.25.75v1.501a.75.75 0 0 1-1.5 0V9.787a.75.75 0 0 1 1.5 0Z"></path></svg>GitHub Copilot</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Write better code with AI</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/features/ai/github-app" 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href="https://github.com/features/code-quality" data-analytics-event="{"action":"code_quality","tag":"link","context":"platform","location":"navbar","label":"code_quality_link_platform_navbar"}"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Link-module__Link--label___jM8Ty"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-codescan-checkmark NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M10.28 6.28a.75.75 0 1 0-1.06-1.06L6.25 8.19l-.97-.97a.75.75 0 0 0-1.06 1.06l1.5 1.5a.75.75 0 0 0 1.06 0l3.5-3.5Z"></path><path d="M7.5 15a7.5 7.5 0 1 1 5.807-2.754l2.473 2.474a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215l-2.474-2.473A7.472 7.472 0 0 1 7.5 15Zm0-13.5a6 6 0 1 0 4.094 10.386.748.748 0 0 1 .293-.292 6.002 6.002 0 0 0 1.117-6.486A6.002 6.002 0 0 0 7.5 1.5Z"></path></svg>Code Quality</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Enforce quality at merge</span></span></a></li></ul></div></li><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ 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class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--default___GhPh_ Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavLink-module__title__Q7t0p"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-shield-check NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m8.533.133 5.25 1.68A1.75 1.75 0 0 1 15 3.48V7c0 1.566-.32 3.182-1.303 4.682-.983 1.498-2.585 2.813-5.032 3.855a1.697 1.697 0 0 1-1.33 0c-2.447-1.042-4.049-2.357-5.032-3.855C1.32 10.182 1 8.566 1 7V3.48a1.75 1.75 0 0 1 1.217-1.667l5.25-1.68a1.748 1.748 0 0 1 1.066 0Zm-.61 1.429.001.001-5.25 1.68a.251.251 0 0 0-.174.237V7c0 1.36.275 2.666 1.057 3.859.784 1.194 2.121 2.342 4.366 3.298a.196.196 0 0 0 .154 0c2.245-.957 3.582-2.103 4.366-3.297C13.225 9.666 13.5 8.358 13.5 7V3.48a.25.25 0 0 0-.174-.238l-5.25-1.68a.25.25 0 0 0-.153 0ZM11.28 6.28l-3.5 3.5a.75.75 0 0 1-1.06 0l-1.5-1.5a.749.749 0 0 1 .326-1.275.749.749 0 0 1 .734.215l.97.97 2.97-2.97a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Z"></path></svg>GitHub Advanced Security</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Find and fix vulnerabilities</span></span></a></li><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/security/advanced-security/code-security" 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display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M0 1.75C0 .784.784 0 1.75 0h12.5C15.216 0 16 .784 16 1.75v12.5A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25V1.75a.25.25 0 0 0-.25-.25Zm7.47 3.97a.75.75 0 0 1 1.06 0l2 2a.75.75 0 0 1 0 1.06l-2 2a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L10.69 8 9.22 6.53a.75.75 0 0 1 0-1.06ZM6.78 6.53 5.31 8l1.47 1.47a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215l-2-2a.75.75 0 0 1 0-1.06l2-2a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Z"></path></svg>Code security</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Secure your code as you build</span></span></a></li><li><a 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aria-hidden="true" focusable="false" class="octicon octicon-lock NavLink-module__icon__ltGNM" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M4 4a4 4 0 0 1 8 0v2h.25c.966 0 1.75.784 1.75 1.75v5.5A1.75 1.75 0 0 1 12.25 15h-8.5A1.75 1.75 0 0 1 2 13.25v-5.5C2 6.784 2.784 6 3.75 6H4Zm8.25 3.5h-8.5a.25.25 0 0 0-.25.25v5.5c0 .138.112.25.25.25h8.5a.25.25 0 0 0 .25-.25v-5.5a.25.25 0 0 0-.25-.25ZM10.5 6V4a2.5 2.5 0 1 0-5 0v2Z"></path></svg>Secret protection</span><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--mona-sans___a8XJD Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--200____P1wy Primer_Brand__Text-module__Text--antialiased___TYoXS NavLink-module__subtitle__X4gkW">Stop leaks before they start</span></span></a></li></ul></div></li><li><div class="NavGroup-module__group__W8SqJ 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style="vertical-align:text-bottom"><path d="m6.427 4.427 3.396 3.396a.25.25 0 0 1 0 .354l-3.396 3.396A.25.25 0 0 1 6 11.396V4.604a.25.25 0 0 1 .427-.177Z"></path></svg></button><div id="_R_jd_" class="NavDropdown-module__dropdown__xm1jd"><ul class="NavDropdown-module__list__zuCgG"><li><div class="NavGroup-module__group__W8SqJ"><span class="Primer_Brand__Text-module__Text___XeGJJ Primer_Brand__Text-module__Text-font--monospace___QXHDQ Primer_Brand__Text-module__Text--muted___rE6mh Primer_Brand__Text-module__Text--100___B2ueX Primer_Brand__Text-module__Text--weight-medium___qJKf_ NavGroup-module__title__Wzxz2" id="_R_2qjd_">BY COMPANY SIZE</span><ul class="NavGroup-module__list__UCOFy" aria-labelledby="_R_2qjd_"><li><a class="Primer_Brand__Link-module__Link___lF11y Primer_Brand__Link-module__Link--default___VRVW0" href="https://github.com/enterprise" 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d="m.427 1.927 1.215 1.215a8.002 8.002 0 1 1-1.6 5.685.75.75 0 1 1 1.493-.154 6.5 6.5 0 1 0 1.18-4.458l1.358 1.358A.25.25 0 0 1 3.896 6H.25A.25.25 0 0 1 0 5.75V2.104a.25.25 0 0 1 .427-.177ZM7.75 4a.75.75 0 0 1 .75.75v2.992l2.028.812a.75.75 0 0 1-.557 1.392l-2.5-1A.751.751 0 0 1 7 8.25v-3.5A.75.75 0 0 1 7.75 4Z"></path></svg></span><span data-component="text" class="prc-Button-Label-FWkx3"><span class="fgColor-default">History</span></span></span></a><div class="d-sm-none"></div><div class="d-flex d-lg-none"><a data-component="LinkButton" aria-label="View commit history for this file." href="/tedneward/Demo-Crystal/commits/main/hello/src/hello.cr" class="prc-Button-ButtonBase-9n-Xk LinkButton-module__linkButton__nFnov flex-items-center fgColor-default" data-loading="false" data-size="small" data-variant="invisible" aria-describedby="_R_2balal4qmk5_"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-Iohp5"><span data-component="leadingVisual" 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0 .75.75 0 0 0-1.5 0Zm8.25-.75a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5ZM4.25 12a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Z"></path></svg></span><span data-component="text" class="prc-Button-Label-FWkx3"><div class="RefSelectorAnchoredOverlay-module__RefSelectorOverlayContainer__yaf4p"><div style="max-width:125px" class="ref-selector-button-text-container RefSelectorAnchoredOverlay-module__RefSelectorBtnTextContainer__Di3rk"><span class="RefSelectorAnchoredOverlay-module__RefSelectorText__w_fmP">main</span></div></div></span><span data-component="trailingVisual" class="prc-Button-Visual-YNt2F prc-Button-VisualWrap-E4cnq"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-triangle-down" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="m4.427 7.427 3.396 3.396a.25.25 0 0 0 .354 0l3.396-3.396A.25.25 0 0 0 11.396 7H4.604a.25.25 0 0 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data-direction="s" data-component="Tooltip" aria-label="Copy path" aria-hidden="true" id="_R_3qmclal4qmk5_">Copy path</span></div></div></div><button data-component="Button" type="button" class="prc-Button-ButtonBase-9n-Xk FileNameStickyHeader-module__Button__LSEU_ FileNameStickyHeader-module__GoToTopButton__nxAFn" data-loading="false" data-size="small" data-variant="invisible"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-Iohp5"><span data-component="leadingVisual" class="prc-Button-Visual-YNt2F prc-Button-VisualWrap-E4cnq"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-arrow-up" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M3.47 7.78a.75.75 0 0 1 0-1.06l4.25-4.25a.75.75 0 0 1 1.06 0l4.25 4.25a.751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018L9 4.81v7.44a.75.75 0 0 1-1.5 0V4.81L4.53 7.78a.75.75 0 0 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data-text="Code">Code</div></span></button></li><li class="prc-SegmentedControl-Item-tSCQh" data-component="SegmentedControl.Button"><button aria-pressed="false" class="prc-SegmentedControl-Button-E48xz" type="button" style="--separator-color:var(--borderColor-default)"><span class="prc-SegmentedControl-Content-1COlk segmentedControl-content"><div class="prc-SegmentedControl-Text-7S2y2 segmentedControl-text" data-text="Blame">Blame</div></span></button></li></ul><div class="d-none"></div><div class="react-code-size-details-in-header CodeSizeDetails-module__Box__VcD6l"><div class="text-mono CodeSizeDetails-module__Box_1__GVxQL"><div data-testid="blob-size" class="CodeSizeDetails-module__Truncate_1__lE93V prc-Truncate-Truncate-2G1eo" data-inline="true" title="107 Bytes" style="--truncate-max-width:100%"><span>6 lines (5 loc) · 107 Bytes</span></div></div></div></div><div class="BlobViewHeader-module__Box_3__ng6v2"><div class="d-none"></div><div class="react-blob-header-edit-and-raw-actions BlobViewHeader-module__Box_4__J4Y4W"><div class="d-none"></div><div class="prc-ButtonGroup-ButtonGroup-vFUrY" data-component="ButtonGroup"><div class="prc-ButtonGroup-Item-PqvDl"><a data-component="LinkButton" href="https://github.com/tedneward/Demo-Crystal/raw/refs/heads/main/hello/src/hello.cr" data-testid="raw-button" class="prc-Button-ButtonBase-9n-Xk LinkButton-module__linkButton__nFnov BlobViewHeader-module__LinkButton__X9kx2" data-loading="false" data-no-visuals="true" data-size="small" data-variant="default"><span data-component="buttonContent" data-align="center" class="prc-Button-ButtonContent-Iohp5"><span data-component="text" class="prc-Button-Label-FWkx3">Raw</span></span></a></div><div class="prc-ButtonGroup-Item-PqvDl"><button data-component="IconButton" type="button" data-testid="copy-raw-button" class="prc-Button-ButtonBase-9n-Xk prc-Button-IconButton-fyge7" data-loading="false" data-no-visuals="true" data-size="small" data-variant="default" aria-labelledby="_R_d5f6clal4qmk5_"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-copy" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path></svg></button><span class="prc-TooltipV2-Tooltip-tLeuB" data-direction="n" data-component="Tooltip" aria-hidden="true" id="_R_d5f6clal4qmk5_">Copy raw file</span></div><div class="prc-ButtonGroup-Item-PqvDl"><button data-component="IconButton" type="button" data-testid="download-raw-button" class="prc-Button-ButtonBase-9n-Xk BlobViewHeader-module__downloadButton__ef459 prc-Button-IconButton-fyge7" data-loading="false" data-no-visuals="true" data-size="small" data-variant="default" aria-labelledby="_R_75f6clal4qmk5_"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-download" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M2.75 14A1.75 1.75 0 0 1 1 12.25v-2.5a.75.75 0 0 1 1.5 0v2.5c0 .138.112.25.25.25h10.5a.25.25 0 0 0 .25-.25v-2.5a.75.75 0 0 1 1.5 0v2.5A1.75 1.75 0 0 1 13.25 14Z"></path><path d="M7.25 7.689V2a.75.75 0 0 1 1.5 0v5.689l1.97-1.969a.749.749 0 1 1 1.06 1.06l-3.25 3.25a.749.749 0 0 1-1.06 0L4.22 6.78a.749.749 0 1 1 1.06-1.06l1.97 1.969Z"></path></svg></button><span class="prc-TooltipV2-Tooltip-tLeuB" data-direction="n" data-component="Tooltip" aria-hidden="true" id="_R_75f6clal4qmk5_">Download raw file</span></div></div></div><div class="d-none"></div><button data-component="IconButton" type="button" aria-pressed="false" aria-expanded="false" aria-controls="symbols-pane" data-testid="symbols-button" class="prc-Button-ButtonBase-9n-Xk BlobViewHeader-module__IconButton_2__RyjZg prc-Button-IconButton-fyge7" data-loading="false" data-no-visuals="true" data-size="small" data-variant="invisible" aria-labelledby="_R_9n6clal4qmk5_" id="symbols-button"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-code-square" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M0 1.75C0 .784.784 0 1.75 0h12.5C15.216 0 16 .784 16 1.75v12.5A1.75 1.75 0 0 1 14.25 16H1.75A1.75 1.75 0 0 1 0 14.25Zm1.75-.25a.25.25 0 0 0-.25.25v12.5c0 .138.112.25.25.25h12.5a.25.25 0 0 0 .25-.25V1.75a.25.25 0 0 0-.25-.25Zm7.47 3.97a.75.75 0 0 1 1.06 0l2 2a.75.75 0 0 1 0 1.06l-2 2a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734L10.69 8 9.22 6.53a.75.75 0 0 1 0-1.06ZM6.78 6.53 5.31 8l1.47 1.47a.749.749 0 0 1-.326 1.275.749.749 0 0 1-.734-.215l-2-2a.75.75 0 0 1 0-1.06l2-2a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042Z"></path></svg></button><span class="prc-TooltipV2-Tooltip-tLeuB" data-direction="nw" data-component="Tooltip" aria-hidden="true" id="_R_9n6clal4qmk5_">Open symbols panel</span><div class="react-blob-header-edit-and-raw-actions-combined"><button data-component="IconButton" type="button" title="More file actions" data-testid="more-file-actions-button" aria-haspopup="true" aria-expanded="false" tabindex="0" class="prc-Button-ButtonBase-9n-Xk js-blob-dropdown-click BlobViewHeader-module__IconButton__XrMQY prc-Button-IconButton-fyge7" data-loading="false" data-no-visuals="true" data-size="small" data-variant="invisible" aria-labelledby="_R_7q76clal4qmk5_" id="_R_a76clal4qmk5_"><svg data-component="Octicon" aria-hidden="true" focusable="false" class="octicon octicon-kebab-horizontal" viewBox="0 0 16 16" width="16" height="16" fill="currentColor" display="inline-block" overflow="visible" style="vertical-align:text-bottom"><path d="M8 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3ZM1.5 9a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Zm13 0a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path></svg></button><span class="prc-TooltipV2-Tooltip-tLeuB" data-direction="nw" data-component="Tooltip" aria-hidden="true" id="_R_7q76clal4qmk5_">Edit and raw actions</span></div></div></div></div><div></div></div><div class="BlobViewContent-module__blobContentWrapper__JS0W6"><section aria-labelledby="file-name-id-wide file-name-id-mobile" class="BlobContent-module__blobContentSection__VOgZq" style="margin-top:46px"><div class="CodeBlob-module__codeBlobWrapper__RS6In" style="padding-top:8px;padding-bottom:8px"><div id="highlighted-line-menu-positioner" class="position-relative"><div id="copilot-button-positioner" class="position-relative"><div class="CodeBlob-module__codeBlobInner__tfjuQ"><div class="react-code-file-contents CodeLinesSSR-module__codeFileContents__ARmAN" role="presentation" aria-hidden="true" data-tab-size="4" data-paste-markdown-skip="true" style="tab-size:4;max-width:unset" data-hpc="true" containertiming="hpc"><div class="react-line-numbers" style="pointer-events:auto"><div data-line-number="1" class="react-line-number react-code-text" style="padding-right:16px">1</div><div data-line-number="2" class="react-line-number react-code-text" style="padding-right:16px">2</div><div data-line-number="3" class="react-line-number react-code-text" style="padding-right:16px">3</div><div data-line-number="4" class="react-line-number react-code-text" style="padding-right:16px">4</div><div data-line-number="5" class="react-line-number react-code-text" style="padding-right:16px">5</div><div data-line-number="6" class="react-line-number react-code-text" style="padding-right:16px">6</div></div><div class="react-code-lines"><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC1" class="react-file-line html-div" data-testid="code-cell" data-line-number="1" style="position:relative"><span class="pl-c"><span class="pl-c">#</span> TODO: Write documentation for `Hello`</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC2" class="react-file-line html-div" data-testid="code-cell" data-line-number="2" style="position:relative"><span class="pl-k">module</span> <span class="pl-en">Hello</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC3" class="react-file-line html-div" data-testid="code-cell" data-line-number="3" style="position:relative"> <span class="pl-c1">VERSION</span> <span class="pl-k">=</span> <span class="pl-s"><span class="pl-pds">"</span>0.1.0<span class="pl-pds">"</span></span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC4" class="react-file-line html-div" data-testid="code-cell" data-line-number="4" style="position:relative">
</div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC5" class="react-file-line html-div" data-testid="code-cell" data-line-number="5" style="position:relative"> <span class="pl-c"><span class="pl-c">#</span> TODO: Put your code here</span></div></div></div><div class="react-code-text react-code-line-contents" style="min-height:auto"><div><div id="LC6" class="react-file-line html-div" data-testid="code-cell" data-line-number="6" style="position:relative"><span class="pl-k">end</span></div></div></div></div></div></div><div id="copilot-button-container"></div></div><div id="highlighted-line-menu-container"></div></div></div><div class="d-none"></div></section></div></div></div> </div> <!-- --> </div></div></div></div></div></div><div class="ScrollMarksContainer-module__scrollMarksContainer__Eu7uU" id="find-result-marks-container"></div><div class="d-none"></div><div class="d-none"></div></div> <!-- --> <!-- --> </div>
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<details class="details-reset details-overlay details-overlay-dark lh-default color-fg-default hx_rsm" open>
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<details-dialog class="Box Box--overlay d-flex flex-column anim-fade-in fast hx_rsm-dialog hx_rsm-modal">
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<template id="snippet-clipboard-copy-button">
<div class="zeroclipboard-container position-absolute right-0 top-0">
<clipboard-copy aria-label="Copy code to clipboard" class="ClipboardButton btn js-clipboard-copy m-2 p-0" data-copy-feedback="Copied!" data-tooltip-direction="w">
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<path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path>
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<template id="snippet-clipboard-copy-button-unpositioned">
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Run
crystal run src/hello.cr
Compile
crystal build src/hello.cr; ./hello
Ruby syntax
static types
compiled performance
a service-oriented programming language
"it is designed to reason effectively about the key questions of (micro)service development, including the following:
What are the APIs exposed by services?
How can these APIs be accessed?
How are APIs implemented in terms of concurrency, communication, and computation?
built on top of the JVM
"More in general, Jolie brings a structured linguistic approach to the programming of services, including constructs for access endpoints, APIs with synchronous and asynchronous operations, communications, behavioural workflows, and multiparty sessions. Additionally, Jolie embraces that service and microservice systems are often heterogeneous and interoperability should be a first-class citizen: all data in Jolie is structured as trees that can be semi-automatically (most of the time fully automatically) converted from/to different data formats (JSON, XML, etc.) and communicated over a variety of protocols (HTTP, binary protocols, etc.). Jolie is an attempt at making the first language for microservices, in the sense that it provides primitives to deal directly with the programming of common concerns regarding microservices without relying on frameworks or external libraries."
Jolie requires Java 11+ to run
Download the Jolie installer
https://www.jolie-lang.org/downloads.html
currently https://github.com/jolie/jolie/releases/download/v1.11.0/jolie-1.11.0.jar
Run the installer
java -jar jolie-1.11.0.jar
Linux/macOS/WSL Homebrew
brew install jolie
Docker
docker pull jolielang/jolie
docker run -it -v /host:/container –name CONTAINERNAME jolielang/jolie
edit files in your /host, which will appear in /container
Or build from source
git clone https://github.com/jolie/jolie.git
cd jolie
mvn install
binaries will be in dist folder
Then (optionally) set up Jolie for the local user
scripts/dev-setup.sh ~/bin
Run Jolie: jolie --version
currently returns Jolie 1.11.2 (C) 2006-2022 the Jolie developers
from your favorite editor, create hello.ol
run the file with jolie hello.ol
connect to the service: http://localhost:9000/hello?name=Fred
Hello world
type HelloRequest {
name:string
}
interface HelloInterface {
requestResponse:
hello( HelloRequest )( string )
}
service HelloService {
execution: concurrent
inputPort HelloService {
location: "socket://localhost:9000"
protocol: http { format = "json" }
interfaces: HelloInterface
}
main {
hello( request )( response ) {
response = "Hello " + request.name
}
}
}
Contract-driven development, defined by formal APIs
Structural typing instead of nominative typing
Components are services
Decouple access points from business logic
Abstract data manipulation
defined by formal APIs
service APIs should be defined in a formal language
technology agnostic
unambiguous
machine readable
based on well-known abstractions.
ironically, WSDL wasn't wrong--just bad
instead of nominative typing
since, really, the contents (structure) are what's transferred
... and any nominative information is lost
service are independently executable software artifacts
services should be clearly identifiable in source code
scope of their definition should be clearly demarcated and delimited
any given logic can/should be accessed via multiple media
therefore coupling logic to access is an antipattern
implementation of business logic should be abstract from how data is represented on the wire
services as a first-class concept
JVM underpining makes for easy integration
built-in data types beyond typical primitives
structural typing makes more sense for services
https://www.winglang.io/
combines infrastructure and runtime code
cloud services as first-class citizens
local simulation (of cloud services)
deploy to any cloud
bring cloud;
let q = new cloud.Queue();
let b = new cloud.Bucket() as "Bucket: Last Message";
q.addConsumer(inflight (m: str) => {
b.put("latest.txt", m);
});
new cloud.Function(inflight (s: str) => {
log("Cloud Function was called with ${s}");
q.push(s);
});
https://www.winglang.io/docs/
Wing CLI
Requires Node v20+
NPM package: npm i -g winglang
Wing Console: download installer (macOS, Windows)
Hello... er, Cloud
bring cloud;
let bucket = new cloud.Bucket();
let queue = new cloud.Queue();
queue.setConsumer(inflight (message: str) => {
bucket.put("wing.txt", "Hello, ${message}");
});
Test it in the Wing Console
wing it hello.w
code and infrastructure, as code
local simulation
... and testing
https://wasp-lang.dev/
configuration/language for full-stack web apps
builds on top of React, Node, and Prisma
ReactJS: SPA framework for browser-based UIs
Node: server-side JS execution engine
Prisma: object-relational mapper
compiler (transpiler) unifies the three
Hello world
app todoApp {
title: "ToDo App", // visible in the browser tab
auth: { // full-stack auth out-of-the-box
userEntity: User,
methods: { google: {}, gitHub: {}, email: {...} }
}
}
route RootRoute { path: "/", to: MainPage }
page MainPage {
authRequired: true, // Limit access to logged in users.
component: import Main from "@client/Main.tsx" // Your React code.
}
query getTasks {
fn: import { getTasks } from "@server/tasks.js", // Your Node.js code.
entities: [Task] // Automatic cache invalidation.
}
entity Task {=psl ... psl=} // Your Prisma data model.
https://wasp-lang.dev/docs/quick-start
Curl/shell: curl -sSL https://get.wasp-lang.dev/installer.sh | sh
(No package manager support yet)
Create the project
wasp new TodoApp
Start the server
cd TodoApp; wasp start
Browse to http://localhost:3000
full-stack web application language
capture routes, types, "screens" all in one place
validation of application flow/constructs
easier reuse of constructs/components
https://mint-lang.com/
"programming language for writing single page applications"
incorporates HTML, CSS, JS into one unified language
written in Crystal
Hello world
component Main {
fun render : Html {
<button>
"Click ME!"
</button>
}
}
Counter component
component Counter {
state counter = 0
fun increment { next { counter: counter + 1 } }
fun decrement { next { counter: counter - 1 } }
fun render {
<div>
<button onClick={decrement}>"Decrement"</button>
<span><{ Number.toString(counter) }></span>
<button onClick={increment}>"Increment"</button>
</div>
}
}
https://mint-lang.com/install
Package managers:
Homebrew/Linuxbrew: brew install mint-lang
Download the (single) prebuilt binary
Build from source: git clone https://github.com/mint-lang/mint.git
Docker:
git clone https://github.com/mint-lang/mint-docker.git
cd mint-docker
docker-compose up
mint init hello-world
Main (source/Main.mint)
component Main {
style app {
justify-content: center;
flex-direction: column;
align-items: center;
display: flex;
background-color: #282C34;
height: 100vh;
width: 100vw;
font-family: Open Sans;
font-weight: bold;
}
fun render : Html {
<div::app>
<Logo/>
<Info mainPath="source/Main.mint"/>
<Link href="https://www.mint-lang.com/">
"Learn Mint"
</Link>
</div>
}
}
Info (source/Info.mint)
component Info {
property mainPath : String
style info {
font-size: calc(10px + 2vmin);
color: #939DB0;
}
style path {
font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace;
font-style: italic;
font-weight: 100;
color: #E06C75;
}
fun render : Html {
<p::info>
<{ "Edit " }>
<code::path>
<{ mainPath }>
</code>
<{ " and save to reload." }>
</p>
}
}
Link (source/Link.mint)
component Link {
property children : Array(Html) = []
property href : String
style link {
font-size: calc(10px + 2vmin);
text-decoration: none;
color: #DDDDDD;
&:hover {
text-decoration: underline;
}
}
fun render : Html {
<a::link
href="#{href}"
target="_blank">
<{ children }>
</a>
}
}
mint start
Browse to http://127.0.0.1:3000/
Edit source/Main.mint (or any of the other files)
Browser page refreshes
https://ui.mint-lang.com/
loads of examples
"unified UI" front-end Web language
captures (calling into) services as part of the language
JS interoperability makes it play well in the Web world
integrated testing as a component (not as HTML, CSS, JS, separately)
There's a whole crop of interesting new languages out there
Many of these aren't ready for production use
but some are oh, so close...
All of them present some fascinating new ideas
... some of which you might want to steal (!)
If one of these doesn't get your motor running...
Pony: type-safe, memory-safe, exception-safe, concurrent
https://www.ponylang.io/
Odin: data-oriented systems programming
https://odin-lang.org/
Zig: statically-typed compiled metaprogrammaing
https://ziglang.org/
Fantom: static and dynamic typing actor concurrency
https://fantom.org/
Red: homoiconic high-level (CLI and GUI)
https://www.red-lang.org/
Ballerina: service-oriented programming
https://www.ballerina.io/
Idris: purely-functional type-driven development
https://www.idris-lang.org/
Nim: statically-typed compiled dependency-free
https://nim-lang.org/
Unison: statically-typed, content-addressed
https://www.unison-lang.org/
Wyvern: type-specific languages
http://wyvernlang.github.io/
Architect, Engineering Manager/Leader, "force multiplier"
http://www.newardassociates.com
http://blogs.newardassociates.com
Books
Developer Relations Activity Patterns (w/Woodruff, et al; APress, 2026)
Professional F# 2.0 (w/Erickson, et al; Wrox, 2010)
Effective Enterprise Java (Addison-Wesley, 2004)
SSCLI Essentials (w/Stutz, et al; OReilly, 2003)
Server-Based Java Programming (Manning, 2000)