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b eyond the valley of the dinosaurs: what’s happening in .net languages. ivan towlson mindscape. what do you think of when you think of .net languages?. visual basic. c#. weird languages used only by bearded eccentrics. source: none. I made the numbers up. - PowerPoint PPT Presentation
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beyond the valley of the dinosaurs:what’s happening in .net languages
ivan towlsonmindscape
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what do you think ofwhen you think of .net languages?
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c# visual basic
weird languages used only by bearded eccentrics
source: none. I made the numbers up
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cls:bow down before your tyrant king
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any language you like,as long as it’s c#
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the meadow andthe walled garden
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the dawn of time: 2002
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the dawn of time: 2002
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eiffelpascal
oberon
j#c#
the dawn of time: 2002
visual basicjscript.netcrazy-ass c++
mondrian
perlpython
scheme
cobol
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eiffel
nemerle
booc#
the age of the dinosaurs*: 2005
visual basicdelphimad c++
cobol
* and the odd super-resilient cockroach
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cobol
cataxum
babel rising: 2009
f#
ironpython
ironruby
ironscheme
clojure.net
scala.net
nemerle
booc#visual basic
delphimad c++
jscript
cobra
powershell php
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trends
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<declarative>
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unctional0
x
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dynamic
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concurrentconcurrentconcurrentconcurrentconcurrent
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intentional
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trendsdeclarativefunctionaldynamic
concurrentintentional
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trendsdeclarativefunctionaldynamic
concurrentintentional
diverse
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diverse...any language you like,as long as it’s not c#
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unctional0
x
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working with functionsas easily as you work with values
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function data typeshigher-order functions...
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...just like c#!
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f#
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functional-object hybrid“ocaml for .net”
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designed for .netv4 included in vs2010...
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...just like c#!
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why should you care?
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cheap gluecomposition and pipelining
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can your case statement do this?patterns and discriminated unions
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brew your own gluemona– er, workflows
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f# workflowsstrategies for combining computations
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f# workflowsredefining language keywords
for fun and profit
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f# workflowscustomise the way your program is run
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asynchronous workflowscomposition of asynchronous operations
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there’s marinara sauce in my glueactors and concurrency
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brew your own glue twoparsing and interpreting
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why should you care?
source: amanda laucher, “real world f# concurrency”http://langnetsymposium.com/
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dynamic
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tinkering is hard
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compiling is boring
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typing is annoying
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let’s go shopping!
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no compilation step classes that stay open
interactive and incremental
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iron pythoniron ruby
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.net implementations ofexisting languagesiron python: v2.6
iron ruby: v0.9
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common“dynamic language runtime”
enables coexistence and interopdlr native in .net 4
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why should you care?
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concurrentconcurrentconcurrentconcurrentconcurrent
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axum
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an encore for actors“erlang for .net”
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status: “incubation”
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intentional
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the tyranny of plain text
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1940s Direct wiring and switches1950s Punched cards1960s Plain text files1970s Plain text files*1980s Plain text files1990s Plain text files2000s Plain text files
seven decades of language innovation
* There were also CASE tools. But they sucked.
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Common abstract representation
C# codeDrag and drop
Equation editor
Projections
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see it: “mother of all demos ii”
http://msdn.microsoft.com/en-us/oslo/dd727740.aspx
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but wait, there’s more
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powershellit’s like a shell... but with power
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phalangerit’s like php... but with alanger
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and for educational andnovelty purposes only...
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scalapowerful mixin model
strong internal dsl support
http://www.scala-lang.org
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...and many many more!perl | smalltalk | tycho | tcl
http://langnetsymposium.com
sable eagle
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earth calling beardy guy
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business objects
a tentative theory of polyglotism
processing
user interface extensibility / customisation
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state, databases
mad? mad, am i?
composition, dsls
tools intensive runtime code
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c# / vb
ha! they called frankenstein mad...
f#
c# / vb ruby / python
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don syme et al. expert f#
“the other ivan” ironruby in action
erik meijer confessions of a used programming language salesman
lang.net symposium videos online
dsl devcon 2009 videos online
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