juniper/rustc_serialize/trait.Encoder.html
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<h1 class='fqn'><span class='in-band'>Trait <a href='index.html'>rustc_serialize</a>::<wbr><a class='trait' href=''>Encoder</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-21' class='srclink' href='../src/rustc_serialize/serialize.rs.html#27-109' title='goto source code'>[src]</a></span></h1>
<pre class='rust trait'>pub trait Encoder {
type <a href='#associatedtype.Error' class='type'>Error</a>;
fn <a href='#tymethod.emit_nil' class='fnname'>emit_nil</a>(&amp;mut self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_usize' class='fnname'>emit_usize</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_u64' class='fnname'>emit_u64</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u64.html'>u64</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_u32' class='fnname'>emit_u32</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u32.html'>u32</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_u16' class='fnname'>emit_u16</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u16.html'>u16</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_u8' class='fnname'>emit_u8</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u8.html'>u8</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_isize' class='fnname'>emit_isize</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.isize.html'>isize</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_i64' class='fnname'>emit_i64</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.i64.html'>i64</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_i32' class='fnname'>emit_i32</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.i32.html'>i32</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_i16' class='fnname'>emit_i16</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.i16.html'>i16</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_i8' class='fnname'>emit_i8</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.i8.html'>i8</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_bool' class='fnname'>emit_bool</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.bool.html'>bool</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_f64' class='fnname'>emit_f64</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.f64.html'>f64</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_f32' class='fnname'>emit_f32</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.f32.html'>f32</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_char' class='fnname'>emit_char</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.char.html'>char</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_str' class='fnname'>emit_str</a>(&amp;mut self, v: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_enum' class='fnname'>emit_enum</a>&lt;F&gt;(&amp;mut self, name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_enum_variant' class='fnname'>emit_enum_variant</a>&lt;F&gt;(&amp;mut self, v_name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, v_id: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_enum_variant_arg' class='fnname'>emit_enum_variant_arg</a>&lt;F&gt;(&amp;mut self, a_idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_enum_struct_variant' class='fnname'>emit_enum_struct_variant</a>&lt;F&gt;(&amp;mut self, v_name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, v_id: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_enum_struct_variant_field' class='fnname'>emit_enum_struct_variant_field</a>&lt;F&gt;(&amp;mut self, f_name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, f_idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_struct' class='fnname'>emit_struct</a>&lt;F&gt;(&amp;mut self, name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_struct_field' class='fnname'>emit_struct_field</a>&lt;F&gt;(&amp;mut self, f_name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, f_idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_tuple' class='fnname'>emit_tuple</a>&lt;F&gt;(&amp;mut self, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_tuple_arg' class='fnname'>emit_tuple_arg</a>&lt;F&gt;(&amp;mut self, idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_tuple_struct' class='fnname'>emit_tuple_struct</a>&lt;F&gt;(&amp;mut self, name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_tuple_struct_arg' class='fnname'>emit_tuple_struct_arg</a>&lt;F&gt;(&amp;mut self, f_idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_option' class='fnname'>emit_option</a>&lt;F&gt;(&amp;mut self, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_option_none' class='fnname'>emit_option_none</a>(&amp;mut self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;;
fn <a href='#tymethod.emit_option_some' class='fnname'>emit_option_some</a>&lt;F&gt;(&amp;mut self, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_seq' class='fnname'>emit_seq</a>&lt;F&gt;(&amp;mut self, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_seq_elt' class='fnname'>emit_seq_elt</a>&lt;F&gt;(&amp;mut self, idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_map' class='fnname'>emit_map</a>&lt;F&gt;(&amp;mut self, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_map_elt_key' class='fnname'>emit_map_elt_key</a>&lt;F&gt;(&amp;mut self, idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
fn <a href='#tymethod.emit_map_elt_val' class='fnname'>emit_map_elt_val</a>&lt;F&gt;(&amp;mut self, idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span>;
}</pre>
<h2 id='associated-types'>Associated Types</h2>
<div class='methods'>
<h3 id='associatedtype.Error' class='method stab '><code>type <a href='#associatedtype.Error' class='type'>Error</a></code></h3></div>
<h2 id='required-methods'>Required Methods</h2>
<div class='methods'>
<h3 id='tymethod.emit_nil' class='method stab '><code>fn <a href='#tymethod.emit_nil' class='fnname'>emit_nil</a>(&amp;mut self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_usize' class='method stab '><code>fn <a href='#tymethod.emit_usize' class='fnname'>emit_usize</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_u64' class='method stab '><code>fn <a href='#tymethod.emit_u64' class='fnname'>emit_u64</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u64.html'>u64</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_u32' class='method stab '><code>fn <a href='#tymethod.emit_u32' class='fnname'>emit_u32</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u32.html'>u32</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_u16' class='method stab '><code>fn <a href='#tymethod.emit_u16' class='fnname'>emit_u16</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u16.html'>u16</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_u8' class='method stab '><code>fn <a href='#tymethod.emit_u8' class='fnname'>emit_u8</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.u8.html'>u8</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_isize' class='method stab '><code>fn <a href='#tymethod.emit_isize' class='fnname'>emit_isize</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.isize.html'>isize</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_i64' class='method stab '><code>fn <a href='#tymethod.emit_i64' class='fnname'>emit_i64</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.i64.html'>i64</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_i32' class='method stab '><code>fn <a href='#tymethod.emit_i32' class='fnname'>emit_i32</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.i32.html'>i32</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_i16' class='method stab '><code>fn <a href='#tymethod.emit_i16' class='fnname'>emit_i16</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.i16.html'>i16</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_i8' class='method stab '><code>fn <a href='#tymethod.emit_i8' class='fnname'>emit_i8</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.i8.html'>i8</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_bool' class='method stab '><code>fn <a href='#tymethod.emit_bool' class='fnname'>emit_bool</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.bool.html'>bool</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_f64' class='method stab '><code>fn <a href='#tymethod.emit_f64' class='fnname'>emit_f64</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.f64.html'>f64</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_f32' class='method stab '><code>fn <a href='#tymethod.emit_f32' class='fnname'>emit_f32</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.f32.html'>f32</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_char' class='method stab '><code>fn <a href='#tymethod.emit_char' class='fnname'>emit_char</a>(&amp;mut self, v: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.char.html'>char</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_str' class='method stab '><code>fn <a href='#tymethod.emit_str' class='fnname'>emit_str</a>(&amp;mut self, v: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_enum' class='method stab '><code>fn <a href='#tymethod.emit_enum' class='fnname'>emit_enum</a>&lt;F&gt;(&amp;mut self, name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_enum_variant' class='method stab '><code>fn <a href='#tymethod.emit_enum_variant' class='fnname'>emit_enum_variant</a>&lt;F&gt;(&amp;mut self, v_name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, v_id: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_enum_variant_arg' class='method stab '><code>fn <a href='#tymethod.emit_enum_variant_arg' class='fnname'>emit_enum_variant_arg</a>&lt;F&gt;(&amp;mut self, a_idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_enum_struct_variant' class='method stab '><code>fn <a href='#tymethod.emit_enum_struct_variant' class='fnname'>emit_enum_struct_variant</a>&lt;F&gt;(&amp;mut self, v_name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, v_id: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_enum_struct_variant_field' class='method stab '><code>fn <a href='#tymethod.emit_enum_struct_variant_field' class='fnname'>emit_enum_struct_variant_field</a>&lt;F&gt;(&amp;mut self, f_name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, f_idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_struct' class='method stab '><code>fn <a href='#tymethod.emit_struct' class='fnname'>emit_struct</a>&lt;F&gt;(&amp;mut self, name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_struct_field' class='method stab '><code>fn <a href='#tymethod.emit_struct_field' class='fnname'>emit_struct_field</a>&lt;F&gt;(&amp;mut self, f_name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, f_idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_tuple' class='method stab '><code>fn <a href='#tymethod.emit_tuple' class='fnname'>emit_tuple</a>&lt;F&gt;(&amp;mut self, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_tuple_arg' class='method stab '><code>fn <a href='#tymethod.emit_tuple_arg' class='fnname'>emit_tuple_arg</a>&lt;F&gt;(&amp;mut self, idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_tuple_struct' class='method stab '><code>fn <a href='#tymethod.emit_tuple_struct' class='fnname'>emit_tuple_struct</a>&lt;F&gt;(&amp;mut self, name: &amp;<a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.str.html'>str</a>, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_tuple_struct_arg' class='method stab '><code>fn <a href='#tymethod.emit_tuple_struct_arg' class='fnname'>emit_tuple_struct_arg</a>&lt;F&gt;(&amp;mut self, f_idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_option' class='method stab '><code>fn <a href='#tymethod.emit_option' class='fnname'>emit_option</a>&lt;F&gt;(&amp;mut self, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_option_none' class='method stab '><code>fn <a href='#tymethod.emit_option_none' class='fnname'>emit_option_none</a>(&amp;mut self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</code></h3><h3 id='tymethod.emit_option_some' class='method stab '><code>fn <a href='#tymethod.emit_option_some' class='fnname'>emit_option_some</a>&lt;F&gt;(&amp;mut self, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_seq' class='method stab '><code>fn <a href='#tymethod.emit_seq' class='fnname'>emit_seq</a>&lt;F&gt;(&amp;mut self, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_seq_elt' class='method stab '><code>fn <a href='#tymethod.emit_seq_elt' class='fnname'>emit_seq_elt</a>&lt;F&gt;(&amp;mut self, idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_map' class='method stab '><code>fn <a href='#tymethod.emit_map' class='fnname'>emit_map</a>&lt;F&gt;(&amp;mut self, len: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_map_elt_key' class='method stab '><code>fn <a href='#tymethod.emit_map_elt_key' class='fnname'>emit_map_elt_key</a>&lt;F&gt;(&amp;mut self, idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3><h3 id='tymethod.emit_map_elt_val' class='method stab '><code>fn <a href='#tymethod.emit_map_elt_val' class='fnname'>emit_map_elt_val</a>&lt;F&gt;(&amp;mut self, idx: <a class='primitive' href='https://doc.rust-lang.org/nightly/std/primitive.usize.html'>usize</a>, f: F) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt; <span class='where'>where F: <a class='trait' href='https://doc.rust-lang.org/nightly/core/ops/trait.FnOnce.html' title='core::ops::FnOnce'>FnOnce</a>(&amp;mut Self) -&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;Self::<a class='trait' href='../rustc_serialize/trait.Encoder.html' title='rustc_serialize::Encoder'>Error</a>&gt;</span></code></h3></div>
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<li><code>impl&lt;'a&gt; Encoder for <a class='struct' href='../rustc_serialize/json/struct.Encoder.html' title='rustc_serialize::json::Encoder'>Encoder</a>&lt;'a&gt;</code></li>
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