68
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Ran 21 Sep 2016 02:37PM UTC

Jobs 2

Files 9

Run time 9s

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Build # 68

Build Type

push

travis-ci

Committed by

philpl

Commit Message

Remove inefficient empty instance storage

The empty instance of a extendable (or sth inheriting it) have
to be stored, so that the same reference can be returned, thus
keeping the reference of the empty instances constant.

Before, the empty instance was stored in the constructor. But
since the constructor curiously inherits from the upper
constructor, there had to be search function, that checks
whether the reference actually stems from a parent. That was
really inefficient.

This was now replaced with a small store inside the extendable.js
that stores a prototype -> empty instance mapping.

It speeds up the perf test from 54μs to 45μs. Which is not far
away from pure Immutable.js's 42μs.

Run Details

95 of 97 relevant lines covered (97.94%)

69.46 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	68.1	21 Sep 2016 02:37PM UTC	0	97.94	Travis Job 68.1
2	68.2	21 Sep 2016 02:37PM UTC	0	97.94	Travis Job 68.2

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