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<title>class Rack::QueryParser::Params - rack-2.2.8 Documentation</title>
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<li ><a href="#method-i-5B-5D-3D">#[]=</a>
<li ><a href="#method-i-key-3F">#key?</a>
<li ><a href="#method-i-to_h">#to_h</a>
<li ><a href="#method-i-to_params_hash">#to_params_hash</a>
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<h1 id="class-Rack::QueryParser::Params" class="class">
class Rack::QueryParser::Params
</h1>
<section class="description">
</section>
<section id="5Buntitled-5D" class="documentation-section">
<section id="public-class-5Buntitled-5D-method-details" class="method-section">
<header>
<h3>Public Class Methods</h3>
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<div id="method-c-new" class="method-detail ">
<div class="method-heading">
<span class="method-name">new</span><span
class="method-args">(limit)</span>
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<div class="method-source-code" id="new-source">
<pre><span class="ruby-comment"># File lib/rack/query_parser.rb, line 163</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">limit</span>)
<span class="ruby-ivar">@limit</span> = <span class="ruby-identifier">limit</span>
<span class="ruby-ivar">@size</span> = <span class="ruby-value">0</span>
<span class="ruby-ivar">@params</span> = {}
<span class="ruby-keyword">end</span></pre>
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<section id="public-instance-5Buntitled-5D-method-details" class="method-section">
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<h3>Public Instance Methods</h3>
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<div id="method-i-5B-5D" class="method-detail ">
<div class="method-heading">
<span class="method-name">[]</span><span
class="method-args">(key)</span>
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<div class="method-source-code" id="5B-5D-source">
<pre><span class="ruby-comment"># File lib/rack/query_parser.rb, line 169</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">[]</span>(<span class="ruby-identifier">key</span>)
<span class="ruby-ivar">@params</span>[<span class="ruby-identifier">key</span>]
<span class="ruby-keyword">end</span></pre>
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<span class="method-name">[]=</span><span
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<pre><span class="ruby-comment"># File lib/rack/query_parser.rb, line 173</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">[]=</span>(<span class="ruby-identifier">key</span>, <span class="ruby-identifier">value</span>)
<span class="ruby-ivar">@size</span> <span class="ruby-operator">+=</span> <span class="ruby-identifier">key</span>.<span class="ruby-identifier">size</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">key</span> <span class="ruby-operator">&&</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@params</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-identifier">key</span>)
<span class="ruby-identifier">raise</span> <span class="ruby-constant">ParamsTooDeepError</span>, <span class="ruby-string">'exceeded available parameter key space'</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@size</span> <span class="ruby-operator">></span> <span class="ruby-ivar">@limit</span>
<span class="ruby-ivar">@params</span>[<span class="ruby-identifier">key</span>] = <span class="ruby-identifier">value</span>
<span class="ruby-keyword">end</span></pre>
</div>
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<div id="method-i-key-3F" class="method-detail ">
<div class="method-heading">
<span class="method-name">key?</span><span
class="method-args">(key)</span>
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<div class="method-source-code" id="key-3F-source">
<pre><span class="ruby-comment"># File lib/rack/query_parser.rb, line 179</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">key?</span>(<span class="ruby-identifier">key</span>)
<span class="ruby-ivar">@params</span>.<span class="ruby-identifier">key?</span>(<span class="ruby-identifier">key</span>)
<span class="ruby-keyword">end</span></pre>
</div>
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<div id="method-i-to_h" class="method-detail ">
<div class="method-heading">
<span class="method-name">to_h</span><span
class="method-args">()</span>
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<div class="method-description">
<p>Recursively unwraps nested `Params` objects and constructs an object of the same shape, but using the objects' internal representations (Ruby hashes) in place of the objects. The result is a hash consisting purely of Ruby primitives.</p>
<pre>Mutation warning!
1. This method mutates the internal representation of the `Params`
objects in order to save object allocations.
2. The value you get back is a reference to the internal hash
representation, not a copy.
3. Because the `Params` object's internal representation is mutable
through the `#[]=` method, it is not thread safe. The result of
getting the hash representation while another thread is adding a
key to it is non-deterministic.</pre>
<div class="method-source-code" id="to_h-source">
<pre><span class="ruby-comment"># File lib/rack/query_parser.rb, line 201</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">to_h</span>
<span class="ruby-ivar">@params</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">key</span>, <span class="ruby-identifier">value</span><span class="ruby-operator">|</span>
<span class="ruby-keyword">case</span> <span class="ruby-identifier">value</span>
<span class="ruby-keyword">when</span> <span class="ruby-keyword">self</span>
<span class="ruby-comment"># Handle circular references gracefully.</span>
<span class="ruby-ivar">@params</span>[<span class="ruby-identifier">key</span>] = <span class="ruby-ivar">@params</span>
<span class="ruby-keyword">when</span> <span class="ruby-constant">Params</span>
<span class="ruby-ivar">@params</span>[<span class="ruby-identifier">key</span>] = <span class="ruby-identifier">value</span>.<span class="ruby-identifier">to_h</span>
<span class="ruby-keyword">when</span> <span class="ruby-constant">Array</span>
<span class="ruby-identifier">value</span>.<span class="ruby-identifier">map!</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">v</span>.<span class="ruby-identifier">kind_of?</span>(<span class="ruby-constant">Params</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">v</span>.<span class="ruby-identifier">to_h</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">v</span> }
<span class="ruby-keyword">else</span>
<span class="ruby-comment"># Ignore anything that is not a `Params` object or</span>
<span class="ruby-comment"># a collection that can contain one.</span>
<span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span>
<span class="ruby-ivar">@params</span>
<span class="ruby-keyword">end</span></pre>
</div>
</div>
<div class="aliases">
Also aliased as: <a href="Params.html#method-i-to_params_hash">to_params_hash</a>
</div>
</div>
<div id="method-i-to_params_hash" class="method-detail method-alias">
<div class="method-heading">
<span class="method-name">to_params_hash</span><span
class="method-args">()</span>
</div>
<div class="method-description">
</div>
<div class="aliases">
Alias for: <a href="Params.html#method-i-to_h">to_h</a>
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