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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="API documentation for the Rust `instantiate` fn in crate `wasmer_runtime`."><meta name="keywords" content="rust, rustlang, rust-lang, instantiate"><title>wasmer_runtime::instantiate - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="https://wasmer.io/static/icons/favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc fn"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../wasmer_runtime/index.html'><div class='logo-container'><img src='https://avatars3.githubusercontent.com/u/44205449?s=200&v=4' alt='logo'></div></a><div class="sidebar-elems"><p class='location'><a href='index.html'>wasmer_runtime</a></p><script>window.sidebarCurrent = {name: 'instantiate', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../src/wasmer_runtime/lib.rs.html#186-189' title='goto source code'>[src]</a></span><span class='in-band'>Function <a href='index.html'>wasmer_runtime</a>::<wbr><a class="fn" href=''>instantiate</a></span></h1><pre class='rust fn'>pub fn instantiate(<br> wasm: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> import_object: &<a class="struct" href="../wasmer_runtime/struct.ImportObject.html" title="struct wasmer_runtime::ImportObject">ImportObject</a><br>) -> <a class="type" href="../wasmer_runtime/error/type.Result.html" title="type wasmer_runtime::error::Result">Result</a><<a class="struct" href="../wasmer_runtime/struct.Instance.html" title="struct wasmer_runtime::Instance">Instance</a>></pre><div class='docblock'><p>Compile and instantiate WebAssembly code without
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creating a <a href="struct.Module.html"><code>Module</code></a>.</p>
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<h1 id="params" class="section-header"><a href="#params">Params:</a></h1>
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<ul>
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<li><code>wasm</code>: A <code>&[u8]</code> containing the
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binary code of the wasm module you want to compile.</li>
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<li><code>import_object</code>: An object containing the values to be imported
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into the newly-created Instance, such as functions or
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Memory objects. There must be one matching property
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for each declared import of the compiled module or else a
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LinkError is thrown.</li>
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</ul>
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<h1 id="errors" class="section-header"><a href="#errors">Errors:</a></h1>
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<p>If the operation fails, the function returns a
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<code>error::CompileError</code>, <code>error::LinkError</code>, or
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<code>error::RuntimeError</code> (all combined into an <code>error::Error</code>),
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depending on the cause of the failure.</p>
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