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895de471ba
Summary: - Move docs script to `scripts/` - Add small note on README about regenerating docs - Re-gen docs (doing this because of all the recent spelling, etc. fixes -- note, no breaking changes have landed, so we're good to re-gen.) Closes https://github.com/Instagram/IGListKit/pull/797 Differential Revision: D5162705 Pulled By: rnystrom fbshipit-source-id: 83cb0f171c10526a8a4b5d8a746fc2226987f256
370 lines
18 KiB
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370 lines
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IGListDiffable Protocol Reference
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<article class="main-content">
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<section>
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<section class="section">
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<h1>IGListDiffable</h1>
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<div class="declaration">
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<div class="language">
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<pre class="highlight"><code><span class="k">@protocol</span> <span class="nc">IGListDiffable</span></code></pre>
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</div>
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</div>
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<p>The <code>IGListDiffable</code> protocol provides methods needed to compare the identity and equality of two objects.</p>
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</section>
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<section class="section task-group-section">
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<div class="task-group">
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<ul>
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<li class="item">
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<div>
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<code>
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<a name="/c:objc(pl)IGListDiffable(im)diffIdentifier"></a>
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<a name="//apple_ref/objc/Method/-diffIdentifier" class="dashAnchor"></a>
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<a class="token" href="#/c:objc(pl)IGListDiffable(im)diffIdentifier">-diffIdentifier</a>
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</code>
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</div>
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>Returns a key that uniquely identifies the object.</p>
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<div class="aside aside-note">
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<p class="aside-title">Note</p>
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<p>Two objects may share the same identifier, but are not equal. A common pattern is to use the <code>NSObject</code>
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category for automatic conformance. However this means that objects will be identified on their
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pointer value so finding updates becomes impossible.</p>
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</div>
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<div class="aside aside-warning">
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<p class="aside-title">Warning</p>
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<p>This value should never be mutated.</p>
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</div>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Objective-C</p>
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<pre class="highlight"><code><span class="k">-</span> <span class="p">(</span><span class="n">nonnull</span> <span class="n">id</span><span class="o"><</span><span class="n">NSObject</span><span class="o">></span><span class="p">)</span><span class="n">diffIdentifier</span><span class="p">;</span></code></pre>
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</div>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight"><code><span class="kd">func</span> <span class="nf">diffIdentifier</span><span class="p">()</span> <span class="o">-></span> <span class="kt">NSObjectProtocol</span></code></pre>
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</div>
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</div>
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<div>
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<h4>Return Value</h4>
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<p>A key that can be used to uniquely identify the object.</p>
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</div>
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</section>
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</div>
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</li>
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<li class="item">
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<div>
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<code>
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<a name="/c:objc(pl)IGListDiffable(im)isEqualToDiffableObject:"></a>
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<a name="//apple_ref/objc/Method/-isEqualToDiffableObject:" class="dashAnchor"></a>
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<a class="token" href="#/c:objc(pl)IGListDiffable(im)isEqualToDiffableObject:">-isEqualToDiffableObject:</a>
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</code>
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</div>
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<div class="height-container">
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<div class="pointer-container"></div>
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<section class="section">
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<div class="pointer"></div>
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<div class="abstract">
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<p>Returns whether the receiver and a given object are equal.</p>
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</div>
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<div class="declaration">
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<h4>Declaration</h4>
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<div class="language">
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<p class="aside-title">Objective-C</p>
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<pre class="highlight"><code><span class="k">-</span> <span class="p">(</span><span class="n">BOOL</span><span class="p">)</span><span class="nf">isEqualToDiffableObject</span><span class="p">:(</span><span class="n">nullable</span> <span class="n">id</span><span class="o"><</span><span class="n">IGListDiffable</span><span class="o">></span><span class="p">)</span><span class="nv">object</span><span class="p">;</span></code></pre>
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</div>
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<div class="language">
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<p class="aside-title">Swift</p>
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<pre class="highlight"><code><span class="kd">func</span> <span class="nf">isEqual</span><span class="p">(</span><span class="n">toDiffableObject</span> <span class="nv">object</span><span class="p">:</span> <span class="kt">ListDiffable</span><span class="p">?)</span> <span class="o">-></span> <span class="kt">Bool</span></code></pre>
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</div>
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</div>
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<div>
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<h4>Parameters</h4>
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<table class="graybox">
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<tbody>
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<tr>
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<td>
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<code>
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<em>object</em>
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</code>
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</td>
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<td>
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<div>
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<p>The object to be compared to the receiver.</p>
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</div>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div>
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<h4>Return Value</h4>
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<p><code>YES</code> if the receiver and object are equal, otherwise <code>NO</code>.</p>
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</div>
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</section>
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</div>
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