Pseudohashes

(History of a major mistake)

Length: 20 minutes

Description

In 1998 work started on a Perl feature called “pseudohashes”, a major reworking of the way Perl represented objects. This work was a complete failure, and after ten years it was removed again. What went wrong, and why?

Outline

The sad history of pseudohashes
This is a story about a major mistake.
Perl objects are hashes
Arrays are smaller and faster
The key idea
Pseudo-Hashes
The Missing 15%
Duh
Two lessons

Online video

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