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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="A map from one bundle authorization to another."><title>MapAuth in zcash_primitives::transaction::components::sapling - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../../static.files/rustdoc-84e720fa.css"><meta name="rustdoc-vars" data-root-path="../../../../" data-static-root-path="../../../../static.files/" data-current-crate="zcash_primitives" data-themes="" data-resource-suffix="" data-rustdoc-version="1.89.0-nightly (ccf3198de 2025-06-05)" data-channel="nightly" data-search-js="search-f7877310.js" data-settings-js="settings-5514c975.js" ><script src="../../../../static.files/storage-4e99c027.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../../static.files/main-fd3af306.js"></script><noscript><link rel="stylesheet" href="../../../../static.files/noscript-32bb7600.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../../../../static.files/favicon-044be391.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../../zcash_primitives/index.html">zcash_<wbr>primitives</a><span class="version">0.23.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">MapAuth</a></h2><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.map_auth_sig" title="map_auth_sig">map_auth_sig</a></li><li><a href="#tymethod.map_authorization" title="map_authorization">map_authorization</a></li><li><a href="#tymethod.map_output_proof" title="map_output_proof">map_output_proof</a></li><li><a href="#tymethod.map_spend_proof" title="map_spend_proof">map_spend_proof</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-MapAuth%3CAuthorized,+Authorized%3E-for-()" title="()">()</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In zcash_<wbr>primitives::<wbr>transaction::<wbr>components::<wbr>sapling</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../../index.html">zcash_primitives</a>::<wbr><a href="../../index.html">transaction</a>::<wbr><a href="../index.html">components</a>::<wbr><a href="index.html">sapling</a></div><h1>Trait <span class="trait">MapAuth</span><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#47-52">Source</a> </span></div><pre class="rust item-decl"><code>pub trait MapAuth&lt;A: Authorization, B: Authorization&gt; {
// Required methods
fn <a href="#tymethod.map_spend_proof" class="fn">map_spend_proof</a>(&amp;mut self, p: A::SpendProof) -&gt; B::SpendProof;
<span class="item-spacer"></span> fn <a href="#tymethod.map_output_proof" class="fn">map_output_proof</a>(&amp;mut self, p: A::OutputProof) -&gt; B::OutputProof;
<span class="item-spacer"></span> fn <a href="#tymethod.map_auth_sig" class="fn">map_auth_sig</a>(&amp;mut self, s: A::AuthSig) -&gt; B::AuthSig;
<span class="item-spacer"></span> fn <a href="#tymethod.map_authorization" class="fn">map_authorization</a>(&amp;mut self, a: A) -&gt; B;
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A map from one bundle authorization to another.</p>
<p>For use with <a href="../../struct.TransactionData.html#method.map_authorization" title="method zcash_primitives::transaction::TransactionData::map_authorization"><code>TransactionData::map_authorization</code></a>.</p>
</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><section id="tymethod.map_spend_proof" class="method"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#48">Source</a><h4 class="code-header">fn <a href="#tymethod.map_spend_proof" class="fn">map_spend_proof</a>(&amp;mut self, p: A::SpendProof) -&gt; B::SpendProof</h4></section><section id="tymethod.map_output_proof" class="method"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#49">Source</a><h4 class="code-header">fn <a href="#tymethod.map_output_proof" class="fn">map_output_proof</a>(&amp;mut self, p: A::OutputProof) -&gt; B::OutputProof</h4></section><section id="tymethod.map_auth_sig" class="method"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#50">Source</a><h4 class="code-header">fn <a href="#tymethod.map_auth_sig" class="fn">map_auth_sig</a>(&amp;mut self, s: A::AuthSig) -&gt; B::AuthSig</h4></section><section id="tymethod.map_authorization" class="method"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#51">Source</a><h4 class="code-header">fn <a href="#tymethod.map_authorization" class="fn">map_authorization</a>(&amp;mut self, a: A) -&gt; B</h4></section></div><h2 id="foreign-impls" class="section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><details class="toggle implementors-toggle"><summary><section id="impl-MapAuth%3CAuthorized,+Authorized%3E-for-()" class="impl"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#60-85">Source</a><a href="#impl-MapAuth%3CAuthorized,+Authorized%3E-for-()" class="anchor">§</a><h3 class="code-header">impl <a class="trait" href="trait.MapAuth.html" title="trait zcash_primitives::transaction::components::sapling::MapAuth">MapAuth</a>&lt;Authorized, Authorized&gt; for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a></h3><div class="docblock"><p>The identity map.</p>
</div></section></summary><div class="docblock"><p>This can be used with <a href="../../struct.TransactionData.html#method.map_authorization" title="method zcash_primitives::transaction::TransactionData::map_authorization"><code>TransactionData::map_authorization</code></a> when you want to map the
authorization of a subset of a transactions bundles.</p>
</div><div class="impl-items"><section id="method.map_spend_proof" class="method trait-impl"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#61-66">Source</a><a href="#method.map_spend_proof" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.map_spend_proof" class="fn">map_spend_proof</a>(
&amp;mut self,
p: &lt;Authorized as Authorization&gt;::SpendProof,
) -&gt; &lt;Authorized as Authorization&gt;::SpendProof</h4></section><section id="method.map_output_proof" class="method trait-impl"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#68-73">Source</a><a href="#method.map_output_proof" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.map_output_proof" class="fn">map_output_proof</a>(
&amp;mut self,
p: &lt;Authorized as Authorization&gt;::OutputProof,
) -&gt; &lt;Authorized as Authorization&gt;::OutputProof</h4></section><section id="method.map_auth_sig" class="method trait-impl"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#75-80">Source</a><a href="#method.map_auth_sig" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.map_auth_sig" class="fn">map_auth_sig</a>(
&amp;mut self,
s: &lt;Authorized as Authorization&gt;::AuthSig,
) -&gt; &lt;Authorized as Authorization&gt;::AuthSig</h4></section><section id="method.map_authorization" class="method trait-impl"><a class="src rightside" href="../../../../src/zcash_primitives/transaction/components/sapling.rs.html#82-84">Source</a><a href="#method.map_authorization" class="anchor">§</a><h4 class="code-header">fn <a href="#tymethod.map_authorization" class="fn">map_authorization</a>(&amp;mut self, a: Authorized) -&gt; Authorized</h4></section></div></details><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"></div><script src="../../../../trait.impl/zcash_primitives/transaction/components/sapling/trait.MapAuth.js" data-ignore-extern-crates="std" async></script></section></div></main></body></html>