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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 chip implements a set of instructions that can be used by gadgets."><meta name="keywords" content="rust, rustlang, rust-lang, Chip"><title>Chip in halo2_proofs::circuit - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.10.0/dist/katex.min.css" integrity="sha384-9eLZqc9ds8eNjO3TmqPeYcDj8n+Qfa4nuSiGYa6DjLNcv9BtN69ZIulL9+8CqC9Y" crossorigin="anonymous">
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</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">☰</button><a class="sidebar-logo" href="../../halo2_proofs/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2 class="location"></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../halo2_proofs/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a><h2 class="location"><a href="#">Chip</a></h2><div class="sidebar-elems"><section><div class="block"><h3 class="sidebar-title"><a href="#required-associated-types">Required Associated Types</a></h3><ul><li><a href="#associatedtype.Config">Config</a></li><li><a href="#associatedtype.Loaded">Loaded</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#required-methods">Required Methods</a></h3><ul><li><a href="#tymethod.config">config</a></li><li><a href="#tymethod.loaded">loaded</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#implementors">Implementors</a></h3></div></section><h2 class="location"><a href="index.html">In halo2_proofs::circuit</a></h2></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../halo2_proofs/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><button type="button">?</button></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav></div><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn"><span class="in-band">Trait <a href="../index.html">halo2_proofs</a>::<wbr><a href="index.html">circuit</a>::<wbr><a class="trait" href="#">Chip</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></span></h1><span class="out-of-band"><a class="srclink" href="../../src/halo2_proofs/circuit.rs.html#28-49">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust trait"><code>pub trait Chip<F: <a class="trait" href="../arithmetic/trait.FieldExt.html" title="trait halo2_proofs::arithmetic::FieldExt">FieldExt</a>>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> {
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type <a href="#associatedtype.Config" class="associatedtype">Config</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>;
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type <a href="#associatedtype.Loaded" class="associatedtype">Loaded</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>;
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fn <a href="#tymethod.config" class="fnname">config</a>(&self) -> &Self::<a class="associatedtype" href="trait.Chip.html#associatedtype.Config" title="type halo2_proofs::circuit::Chip::Config">Config</a>;
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<span class="item-spacer"></span> fn <a href="#tymethod.loaded" class="fnname">loaded</a>(&self) -> &Self::<a class="associatedtype" href="trait.Chip.html#associatedtype.Loaded" title="type halo2_proofs::circuit::Chip::Loaded">Loaded</a>;
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}</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A chip implements a set of instructions that can be used by gadgets.</p>
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<p>The chip stores state that is required at circuit synthesis time in
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<a href="trait.Chip.html#associatedtype.Config" title="Chip::Config"><code>Chip::Config</code></a>, which can be fetched via <a href="trait.Chip.html#tymethod.config" title="Chip::config"><code>Chip::config</code></a>.</p>
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<p>The chip also loads any fixed configuration needed at synthesis time
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using its own implementation of <code>load</code>, and stores it in <a href="trait.Chip.html#associatedtype.Loaded" title="Chip::Loaded"><code>Chip::Loaded</code></a>.
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This can be accessed via <a href="trait.Chip.html#tymethod.loaded" title="Chip::loaded"><code>Chip::loaded</code></a>.</p>
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</div></details><h2 id="required-associated-types" class="small-section-header">Required Associated Types<a href="#required-associated-types" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="associatedtype.Config" class="method has-srclink"><a class="srclink rightside" href="../../src/halo2_proofs/circuit.rs.html#33">source</a><h4 class="code-header">type <a href="#associatedtype.Config" class="associatedtype">Config</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a></h4></div></summary><div class="docblock"><p>A type that holds the configuration for this chip, and any other state it may need
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during circuit synthesis, that can be derived during <a href="../plonk/trait.Circuit.html#tymethod.configure"><code>Circuit::configure</code></a>.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="associatedtype.Loaded" class="method has-srclink"><a class="srclink rightside" href="../../src/halo2_proofs/circuit.rs.html#39">source</a><h4 class="code-header">type <a href="#associatedtype.Loaded" class="associatedtype">Loaded</a>: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a></h4></div></summary><div class="docblock"><p>A type that holds any general chip state that needs to be loaded at the start of
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<a href="../plonk/trait.Circuit.html#tymethod.synthesize"><code>Circuit::synthesize</code></a>. This might simply be <code>()</code> for some chips.</p>
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</div></details></div><h2 id="required-methods" class="small-section-header">Required Methods<a href="#required-methods" class="anchor"></a></h2><div class="methods"><details class="rustdoc-toggle" open><summary><div id="tymethod.config" class="method has-srclink"><a class="srclink rightside" href="../../src/halo2_proofs/circuit.rs.html#42">source</a><h4 class="code-header">fn <a href="#tymethod.config" class="fnname">config</a>(&self) -> &Self::<a class="associatedtype" href="trait.Chip.html#associatedtype.Config" title="type halo2_proofs::circuit::Chip::Config">Config</a></h4></div></summary><div class="docblock"><p>The chip holds its own configuration.</p>
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</div></details><details class="rustdoc-toggle" open><summary><div id="tymethod.loaded" class="method has-srclink"><a class="srclink rightside" href="../../src/halo2_proofs/circuit.rs.html#48">source</a><h4 class="code-header">fn <a href="#tymethod.loaded" class="fnname">loaded</a>(&self) -> &Self::<a class="associatedtype" href="trait.Chip.html#associatedtype.Loaded" title="type halo2_proofs::circuit::Chip::Loaded">Loaded</a></h4></div></summary><div class="docblock"><p>Provides access to general chip state loaded at the beginning of circuit
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synthesis.</p>
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<p>Panics if called before <code>Chip::load</code>.</p>
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</div></details></div><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor"></a></h2><div class="item-list" id="implementors-list"></div><script src="../../implementors/halo2_proofs/circuit/trait.Chip.js" async></script></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="halo2_proofs" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (f5193a9fc 2022-09-25)" ></div></body></html> |