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Juniper Documentation Builder 95d942c9d4 Update documentation for Juniper
2016-09-11 18:41:24 +00:00

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<section id='main' class="content enum">
<h1 class='fqn'><span class='in-band'>Enum <a href='../index.html'>iron</a>::<wbr><a href='index.html'>headers</a>::<wbr><a class='enum' href=''>IfRange</a></span><span class='out-of-band'><span id='render-detail'>
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[<span class='inner'>&#x2212;</span>]
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</span><a id='src-3369' class='srclink' href='../../hyper/header/common/if_range/enum.IfRange.html?gotosrc=3369' title='goto source code'>[src]</a></span></h1>
<pre class='rust enum'>pub enum IfRange {
EntityTag(<a class='struct' href='../../iron/headers/struct.EntityTag.html' title='iron::headers::EntityTag'>EntityTag</a>),
Date(<a class='struct' href='../../iron/headers/struct.HttpDate.html' title='iron::headers::HttpDate'>HttpDate</a>),
}</pre><div class='docblock'><p><code>If-Range</code> header, defined in <a href="http://tools.ietf.org/html/rfc7233#section-3.2">RFC7233</a></p>
<p>If a client has a partial copy of a representation and wishes to have
an up-to-date copy of the entire representation, it could use the
Range header field with a conditional GET (using either or both of
If-Unmodified-Since and If-Match.) However, if the precondition
fails because the representation has been modified, the client would
then have to make a second request to obtain the entire current
representation.</p>
<p>The <code>If-Range</code> header field allows a client to &quot;short-circuit&quot; the
second request. Informally, its meaning is as follows: if the
representation is unchanged, send me the part(s) that I am requesting
in Range; otherwise, send me the entire representation.</p>
<h1 id='abnf' class='section-header'><a href='#abnf'>ABNF</a></h1>
<pre><code class="language-plain">If-Range = entity-tag / HTTP-date
</code></pre>
<h1 id='example-values' class='section-header'><a href='#example-values'>Example values</a></h1>
<ul>
<li><code>Sat, 29 Oct 1994 19:43:31 GMT</code></li>
<li><code>\&quot;xyzzy\&quot;</code></li>
</ul>
<h1 id='examples' class='section-header'><a href='#examples'>Examples</a></h1>
<pre class='rust rust-example-rendered'>
<span class='kw'>use</span> <span class='ident'>hyper</span>::<span class='ident'>header</span>::{<span class='ident'>Headers</span>, <span class='ident'>IfRange</span>, <span class='ident'>EntityTag</span>};
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>headers</span> <span class='op'>=</span> <span class='ident'>Headers</span>::<span class='ident'>new</span>();
<span class='ident'>headers</span>.<span class='ident'>set</span>(<span class='ident'>IfRange</span>::<span class='ident'>EntityTag</span>(<span class='ident'>EntityTag</span>::<span class='ident'>new</span>(<span class='bool-val'>false</span>, <span class='string'>&quot;xyzzy&quot;</span>.<span class='ident'>to_owned</span>())));</pre>
<pre class='rust rust-example-rendered'>
<span class='comment'>// extern crate time;</span>
<span class='kw'>use</span> <span class='ident'>hyper</span>::<span class='ident'>header</span>::{<span class='ident'>Headers</span>, <span class='ident'>IfRange</span>, <span class='ident'>HttpDate</span>};
<span class='kw'>use</span> <span class='ident'>time</span>::{<span class='self'>self</span>, <span class='ident'>Duration</span>};
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>headers</span> <span class='op'>=</span> <span class='ident'>Headers</span>::<span class='ident'>new</span>();
<span class='ident'>headers</span>.<span class='ident'>set</span>(<span class='ident'>IfRange</span>::<span class='ident'>Date</span>(<span class='ident'>HttpDate</span>(<span class='ident'>time</span>::<span class='ident'>now</span>() <span class='op'>-</span> <span class='ident'>Duration</span>::<span class='ident'>days</span>(<span class='number'>1</span>))));</pre>
</div><h2 class='variants'>Variants</h2>
<span id='variant.EntityTag' class='variant'><code>EntityTag(<a class='struct' href='../../iron/headers/struct.EntityTag.html' title='iron::headers::EntityTag'>EntityTag</a>)</code></span><div class='docblock'><p>The entity-tag the client has of the resource</p>
</div><span id='variant.Date' class='variant'><code>Date(<a class='struct' href='../../iron/headers/struct.HttpDate.html' title='iron::headers::HttpDate'>HttpDate</a>)</code></span><div class='docblock'><p>The date when the client retrieved the resource</p>
</div><h2 id='implementations'>Trait Implementations</h2><h3 class='impl'><span class='in-band'><code>impl <a class='trait' href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html' title='core::cmp::PartialEq'>PartialEq</a>&lt;<a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a>&gt; for <a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a></code></span><span class='out-of-band'></span></h3>
<div class='impl-items'><h4 id='method.eq' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&amp;self, __arg_0: &amp;<a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a>) -&gt; <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.bool.html'>bool</a></code></h4>
<div class='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
</div><h4 id='method.ne' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&amp;self, __arg_0: &amp;<a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a>) -&gt; <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.bool.html'>bool</a></code></h4>
<div class='docblock'><p>This method tests for <code>!=</code>.</p>
</div></div><h3 class='impl'><span class='in-band'><code>impl <a class='trait' href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html' title='core::fmt::Debug'>Debug</a> for <a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a></code></span><span class='out-of-band'></span></h3>
<div class='impl-items'><h4 id='method.fmt' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&amp;self, __arg_0: &amp;mut <a class='struct' href='https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html' title='core::fmt::Formatter'>Formatter</a>) -&gt; <a class='enum' href='https://doc.rust-lang.org/nightly/core/result/enum.Result.html' title='core::result::Result'>Result</a>&lt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>()</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html' title='core::fmt::Error'>Error</a>&gt;</code></h4>
<div class='docblock'><p>Formats the value using the given formatter.</p>
</div></div><h3 class='impl'><span class='in-band'><code>impl <a class='trait' href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html' title='core::clone::Clone'>Clone</a> for <a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a></code></span><span class='out-of-band'></span></h3>
<div class='impl-items'><h4 id='method.clone' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&amp;self) -&gt; <a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a></code></h4>
<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
</div><h4 id='method.clone_from' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&amp;mut self, source: &amp;Self)</code><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div></h4>
<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
</div></div><h3 class='impl'><span class='in-band'><code>impl <a class='trait' href='../../iron/headers/trait.Header.html' title='iron::headers::Header'>Header</a> for <a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a></code></span><span class='out-of-band'></span></h3>
<div class='impl-items'><h4 id='method.header_name' class='method'><code>fn <a href='../../iron/headers/trait.Header.html#tymethod.header_name' class='fnname'>header_name</a>() -&gt; &amp;'static <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a></code></h4>
<div class='docblock'><p>Returns the name of the header field this belongs to. <a href="../../iron/headers/trait.Header.html#tymethod.header_name">Read more</a></p>
</div><h4 id='method.parse_header' class='method'><code>fn <a href='../../iron/headers/trait.Header.html#tymethod.parse_header' class='fnname'>parse_header</a>(raw: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.slice.html'>&amp;[</a><a class='struct' href='https://doc.rust-lang.org/nightly/collections/vec/struct.Vec.html' title='collections::vec::Vec'>Vec</a>&lt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u8.html'>u8</a>&gt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.slice.html'>]</a>) -&gt; <a class='enum' href='https://doc.rust-lang.org/nightly/core/result/enum.Result.html' title='core::result::Result'>Result</a>&lt;<a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a>,&nbsp;<a class='enum' href='../../iron/error/enum.HttpError.html' title='iron::error::HttpError'>Error</a>&gt;</code></h4>
<div class='docblock'><p>Parse a header from a raw stream of bytes. <a href="../../iron/headers/trait.Header.html#tymethod.parse_header">Read more</a></p>
</div></div><h3 class='impl'><span class='in-band'><code>impl <a class='trait' href='../../iron/headers/trait.HeaderFormat.html' title='iron::headers::HeaderFormat'>HeaderFormat</a> for <a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a></code></span><span class='out-of-band'></span></h3>
<div class='impl-items'><h4 id='method.fmt_header' class='method'><code>fn <a href='../../iron/headers/trait.HeaderFormat.html#tymethod.fmt_header' class='fnname'>fmt_header</a>(&amp;self, f: &amp;mut <a class='struct' href='https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html' title='core::fmt::Formatter'>Formatter</a>) -&gt; <a class='enum' href='https://doc.rust-lang.org/nightly/core/result/enum.Result.html' title='core::result::Result'>Result</a>&lt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>()</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html' title='core::fmt::Error'>Error</a>&gt;</code></h4>
<div class='docblock'><p>Format a header to be output into a TcpStream. <a href="../../iron/headers/trait.HeaderFormat.html#tymethod.fmt_header">Read more</a></p>
</div></div><h3 class='impl'><span class='in-band'><code>impl <a class='trait' href='https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html' title='core::fmt::Display'>Display</a> for <a class='enum' href='../../iron/headers/enum.IfRange.html' title='iron::headers::IfRange'>IfRange</a></code></span><span class='out-of-band'></span></h3>
<div class='impl-items'><h4 id='method.fmt-1' class='method'><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html#tymethod.fmt' class='fnname'>fmt</a>(&amp;self, f: &amp;mut <a class='struct' href='https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html' title='core::fmt::Formatter'>Formatter</a>) -&gt; <a class='enum' href='https://doc.rust-lang.org/nightly/core/result/enum.Result.html' title='core::result::Result'>Result</a>&lt;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.tuple.html'>()</a>,&nbsp;<a class='struct' href='https://doc.rust-lang.org/nightly/core/fmt/struct.Error.html' title='core::fmt::Error'>Error</a>&gt;</code></h4>
<div class='docblock'><p>Formats the value using the given formatter.</p>
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