Pharo

For other uses, see Pharo (disambiguation).
Not to be confused with the similar term Pharaoh (disambiguation).
Pharo
Pharo logo with lighthouse
Paradigmobject-oriented
FamilySmalltalk: Squeak
DeveloperPharo community
First appearedMarch 2008; 16 years ago (2008-03)
Stable release
12.0[1] Edit this on Wikidata / 26 April 2024; 6 months ago (26 April 2024)
Typing disciplinedynamic
Implementation languageSmalltalk
PlatformARM, IA-32, x86-64
OSWindows, Linux, macOS, others
LicenseMIT, partly Apache 2.0[2]
Websitepharo.org
Influenced by
Smalltalk (Squeak)

Pharo is a cross-platform implementation of the classic Smalltalk-80 programming language and runtime system.[3] It is based on the OpenSmalltalk virtual machine (VM) named Cog,[4][5][6][7]: 16  which evaluates a dynamic, reflective, and object-oriented programming language with a syntax closely resembling Smalltalk-80. It is free and open-source software, released under a mix of MIT, and Apache 2 licenses.

Pharo is shipped with source code compiled into a system image that contains all software needed to run Pharo.[7]: 16  Like the original Smalltalk-80, Pharo provides several live programming features such as immediate object manipulation, live updates, and just-in-time compilation (JIT). The system image includes an integrated development environment (IDE) to modify its components.

Pharo was forked from Squeak v3.9 in March of 2008.[8][3][7][7]: 10 [9]

  1. ^ https://pharo.org/news/2024-04-26-pharo12-released.html. {{cite web}}: Missing or empty |title= (help)
  2. ^ Pharo license information
  3. ^ a b Black, Andrew P.; Ducasse, Stéphane; Nierstrasz, Oscar; Pollet, Damien; Cassou, Damien; Denker, Marcus (October 28, 2009). Pharo by example. Kehrsatz, Switzerland. ISBN 978-3-9523341-4-0. OCLC 957555627.{{cite book}}: CS1 maint: location missing publisher (link)
  4. ^ "OpenSmalltalk". opensmalltalk.org. Retrieved November 24, 2021.
  5. ^ OpenSmalltalk/opensmalltalk-vm, OpenSmalltalk, November 23, 2021, retrieved November 24, 2021
  6. ^ "Cog Blog: About Cog". Retrieved November 24, 2021.
  7. ^ a b c d Black, Andrew P.; Ducasse, Stéphane; Nierstrasz, Oscar; Pollet, Damien (October 28, 2009). Pharo by Example. Samuel Morello. ISBN 978-3-9523341-4-0.
  8. ^ "DevelopOnTheWeb". developontheweb.co.uk. Retrieved November 24, 2021.
  9. ^ "The Rise and Fall of Commercial Smalltalk". www.wirfs-brock.com. Retrieved November 24, 2021.