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Add HashCodeBuilder to help developers build hash codes #3597

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sethladd opened this issue Jun 13, 2012 · 3 comments
Closed

Add HashCodeBuilder to help developers build hash codes #3597

sethladd opened this issue Jun 13, 2012 · 3 comments
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area-core-library SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries. closed-duplicate Closed in favor of an existing report P2 A bug or feature request we're likely to work on type-enhancement A request for a change that isn't a bug

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@sethladd
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Dart objects don't implement Hashable by default. It is left up to the developer to implement Hashable and provide a sensible hashcode. This can be error-prone if not understood. However, there are well known hash code generation strategies.

Suggest the Dart library ship with a hashcode builder to facilitate the correct strategy for generating a hashcode.
@sethladd
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Related: http://code.google.com/p/dart/issues/detail?id=3611

(in fact, if we get 3611, we probably don't need this)

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DartBot commented Jun 13, 2012

This comment was originally written by branflak...@gmail.com

Maybe worth noting for comparison. Looks like guava has a hashcode factory. https://code.google.com/p/guava-libraries/wiki/HashingExplained

@sethladd sethladd added Type-Enhancement area-core-library SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries. labels Jun 13, 2012
@kevmoo kevmoo added P2 A bug or feature request we're likely to work on type-enhancement A request for a change that isn't a bug and removed triaged labels Feb 29, 2016
@lrhn lrhn added the core-m label Aug 11, 2017
@floitschG floitschG added closed-duplicate Closed in favor of an existing report and removed core-m labels Aug 31, 2017
@floitschG
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Marking as dupe of #11617

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area-core-library SDK core library issues (core, async, ...); use area-vm or area-web for platform specific libraries. closed-duplicate Closed in favor of an existing report P2 A bug or feature request we're likely to work on type-enhancement A request for a change that isn't a bug
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@sethladd @kevmoo @lrhn @floitschG @DartBot