3460 lines
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3460 lines
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HTML
<!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="Source of the Rust file `/home/justine/.cargo/registry/src/github.com-1ecc6299db9ec823/bitflags-1.3.2/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.rs - source</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" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.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"></head><body class="rustdoc source"><!--[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="../../bitflags/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="../../bitflags/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../bitflags/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="example-wrap"><pre class="line-numbers"><span id="1">1</span>
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||
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|
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|
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|
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||
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||
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||
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||
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||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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||
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||
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||
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|
||
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|
||
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|
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||
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|
||
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||
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|
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||
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||
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||
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||
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|
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|
||
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|
||
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|
||
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|
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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||
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||
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|
||
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||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="619">619</span>
|
||
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|
||
<span id="621">621</span>
|
||
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|
||
<span id="623">623</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="629">629</span>
|
||
<span id="630">630</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="638">638</span>
|
||
<span id="639">639</span>
|
||
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|
||
<span id="641">641</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="655">655</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="662">662</span>
|
||
<span id="663">663</span>
|
||
<span id="664">664</span>
|
||
<span id="665">665</span>
|
||
<span id="666">666</span>
|
||
<span id="667">667</span>
|
||
<span id="668">668</span>
|
||
<span id="669">669</span>
|
||
<span id="670">670</span>
|
||
<span id="671">671</span>
|
||
<span id="672">672</span>
|
||
<span id="673">673</span>
|
||
<span id="674">674</span>
|
||
<span id="675">675</span>
|
||
<span id="676">676</span>
|
||
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|
||
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|
||
<span id="679">679</span>
|
||
<span id="680">680</span>
|
||
<span id="681">681</span>
|
||
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|
||
<span id="683">683</span>
|
||
<span id="684">684</span>
|
||
<span id="685">685</span>
|
||
<span id="686">686</span>
|
||
<span id="687">687</span>
|
||
<span id="688">688</span>
|
||
<span id="689">689</span>
|
||
<span id="690">690</span>
|
||
<span id="691">691</span>
|
||
<span id="692">692</span>
|
||
<span id="693">693</span>
|
||
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|
||
<span id="695">695</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="701">701</span>
|
||
<span id="702">702</span>
|
||
<span id="703">703</span>
|
||
<span id="704">704</span>
|
||
<span id="705">705</span>
|
||
<span id="706">706</span>
|
||
<span id="707">707</span>
|
||
<span id="708">708</span>
|
||
<span id="709">709</span>
|
||
<span id="710">710</span>
|
||
<span id="711">711</span>
|
||
<span id="712">712</span>
|
||
<span id="713">713</span>
|
||
<span id="714">714</span>
|
||
<span id="715">715</span>
|
||
<span id="716">716</span>
|
||
<span id="717">717</span>
|
||
<span id="718">718</span>
|
||
<span id="719">719</span>
|
||
<span id="720">720</span>
|
||
<span id="721">721</span>
|
||
<span id="722">722</span>
|
||
<span id="723">723</span>
|
||
<span id="724">724</span>
|
||
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|
||
<span id="726">726</span>
|
||
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|
||
<span id="728">728</span>
|
||
<span id="729">729</span>
|
||
<span id="730">730</span>
|
||
<span id="731">731</span>
|
||
<span id="732">732</span>
|
||
<span id="733">733</span>
|
||
<span id="734">734</span>
|
||
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|
||
<span id="736">736</span>
|
||
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|
||
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|
||
<span id="739">739</span>
|
||
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|
||
<span id="741">741</span>
|
||
<span id="742">742</span>
|
||
<span id="743">743</span>
|
||
<span id="744">744</span>
|
||
<span id="745">745</span>
|
||
<span id="746">746</span>
|
||
<span id="747">747</span>
|
||
<span id="748">748</span>
|
||
<span id="749">749</span>
|
||
<span id="750">750</span>
|
||
<span id="751">751</span>
|
||
<span id="752">752</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="846">846</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="1004">1004</span>
|
||
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|
||
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|
||
<span id="1007">1007</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="1016">1016</span>
|
||
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|
||
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|
||
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|
||
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|
||
<span id="1021">1021</span>
|
||
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|
||
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|
||
<span id="1024">1024</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="1037">1037</span>
|
||
<span id="1038">1038</span>
|
||
<span id="1039">1039</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="1078">1078</span>
|
||
<span id="1079">1079</span>
|
||
<span id="1080">1080</span>
|
||
<span id="1081">1081</span>
|
||
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|
||
<span id="1083">1083</span>
|
||
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|
||
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|
||
<span id="1086">1086</span>
|
||
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|
||
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|
||
<span id="1089">1089</span>
|
||
<span id="1090">1090</span>
|
||
<span id="1091">1091</span>
|
||
<span id="1092">1092</span>
|
||
<span id="1093">1093</span>
|
||
<span id="1094">1094</span>
|
||
<span id="1095">1095</span>
|
||
<span id="1096">1096</span>
|
||
<span id="1097">1097</span>
|
||
<span id="1098">1098</span>
|
||
<span id="1099">1099</span>
|
||
<span id="1100">1100</span>
|
||
<span id="1101">1101</span>
|
||
<span id="1102">1102</span>
|
||
<span id="1103">1103</span>
|
||
<span id="1104">1104</span>
|
||
<span id="1105">1105</span>
|
||
<span id="1106">1106</span>
|
||
<span id="1107">1107</span>
|
||
<span id="1108">1108</span>
|
||
<span id="1109">1109</span>
|
||
<span id="1110">1110</span>
|
||
<span id="1111">1111</span>
|
||
<span id="1112">1112</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="1118">1118</span>
|
||
<span id="1119">1119</span>
|
||
<span id="1120">1120</span>
|
||
<span id="1121">1121</span>
|
||
<span id="1122">1122</span>
|
||
<span id="1123">1123</span>
|
||
<span id="1124">1124</span>
|
||
<span id="1125">1125</span>
|
||
<span id="1126">1126</span>
|
||
<span id="1127">1127</span>
|
||
<span id="1128">1128</span>
|
||
<span id="1129">1129</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
<span id="1176">1176</span>
|
||
<span id="1177">1177</span>
|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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|
||
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||
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|
||
<span id="1676">1676</span>
|
||
<span id="1677">1677</span>
|
||
<span id="1678">1678</span>
|
||
<span id="1679">1679</span>
|
||
<span id="1680">1680</span>
|
||
<span id="1681">1681</span>
|
||
<span id="1682">1682</span>
|
||
<span id="1683">1683</span>
|
||
<span id="1684">1684</span>
|
||
<span id="1685">1685</span>
|
||
<span id="1686">1686</span>
|
||
<span id="1687">1687</span>
|
||
<span id="1688">1688</span>
|
||
<span id="1689">1689</span>
|
||
<span id="1690">1690</span>
|
||
<span id="1691">1691</span>
|
||
<span id="1692">1692</span>
|
||
<span id="1693">1693</span>
|
||
<span id="1694">1694</span>
|
||
<span id="1695">1695</span>
|
||
<span id="1696">1696</span>
|
||
<span id="1697">1697</span>
|
||
<span id="1698">1698</span>
|
||
<span id="1699">1699</span>
|
||
<span id="1700">1700</span>
|
||
<span id="1701">1701</span>
|
||
<span id="1702">1702</span>
|
||
<span id="1703">1703</span>
|
||
<span id="1704">1704</span>
|
||
<span id="1705">1705</span>
|
||
<span id="1706">1706</span>
|
||
<span id="1707">1707</span>
|
||
<span id="1708">1708</span>
|
||
<span id="1709">1709</span>
|
||
<span id="1710">1710</span>
|
||
<span id="1711">1711</span>
|
||
<span id="1712">1712</span>
|
||
<span id="1713">1713</span>
|
||
<span id="1714">1714</span>
|
||
<span id="1715">1715</span>
|
||
<span id="1716">1716</span>
|
||
<span id="1717">1717</span>
|
||
<span id="1718">1718</span>
|
||
<span id="1719">1719</span>
|
||
<span id="1720">1720</span>
|
||
<span id="1721">1721</span>
|
||
<span id="1722">1722</span>
|
||
<span id="1723">1723</span>
|
||
<span id="1724">1724</span>
|
||
<span id="1725">1725</span>
|
||
<span id="1726">1726</span>
|
||
<span id="1727">1727</span>
|
||
<span id="1728">1728</span>
|
||
<span id="1729">1729</span>
|
||
</pre><pre class="rust"><code><span class="comment">// Copyright 2014 The Rust Project Developers. See the COPYRIGHT</span>
|
||
<span class="comment">// file at the top-level directory of this distribution and at</span>
|
||
<span class="comment">// http://rust-lang.org/COPYRIGHT.</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span>
|
||
<span class="comment">// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span>
|
||
<span class="comment">// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your</span>
|
||
<span class="comment">// option. This file may not be copied, modified, or distributed</span>
|
||
<span class="comment">// except according to those terms.</span>
|
||
|
||
<span class="doccomment">//! A typesafe bitmask flag generator useful for sets of C-style bitmask flags.</span>
|
||
<span class="doccomment">//! It can be used for creating typesafe wrappers around C APIs.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The `bitflags!` macro generates `struct`s that manage a set of flags. The</span>
|
||
<span class="doccomment">//! flags should only be defined for integer types, otherwise unexpected type</span>
|
||
<span class="doccomment">//! errors may occur at compile time.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! # Example</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//! use bitflags::bitflags;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! bitflags! {</span>
|
||
<span class="doccomment">//! struct Flags: u32 {</span>
|
||
<span class="doccomment">//! const A = 0b00000001;</span>
|
||
<span class="doccomment">//! const B = 0b00000010;</span>
|
||
<span class="doccomment">//! const C = 0b00000100;</span>
|
||
<span class="doccomment">//! const ABC = Self::A.bits | Self::B.bits | Self::C.bits;</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! fn main() {</span>
|
||
<span class="doccomment">//! let e1 = Flags::A | Flags::C;</span>
|
||
<span class="doccomment">//! let e2 = Flags::B | Flags::C;</span>
|
||
<span class="doccomment">//! assert_eq!((e1 | e2), Flags::ABC); // union</span>
|
||
<span class="doccomment">//! assert_eq!((e1 & e2), Flags::C); // intersection</span>
|
||
<span class="doccomment">//! assert_eq!((e1 - e2), Flags::A); // set difference</span>
|
||
<span class="doccomment">//! assert_eq!(!e2, Flags::A); // set complement</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! See [`example_generated::Flags`](./example_generated/struct.Flags.html) for documentation of code</span>
|
||
<span class="doccomment">//! generated by the above `bitflags!` expansion.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The generated `struct`s can also be extended with type and trait</span>
|
||
<span class="doccomment">//! implementations:</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//! use std::fmt;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! use bitflags::bitflags;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! bitflags! {</span>
|
||
<span class="doccomment">//! struct Flags: u32 {</span>
|
||
<span class="doccomment">//! const A = 0b00000001;</span>
|
||
<span class="doccomment">//! const B = 0b00000010;</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! impl Flags {</span>
|
||
<span class="doccomment">//! pub fn clear(&mut self) {</span>
|
||
<span class="doccomment">//! self.bits = 0; // The `bits` field can be accessed from within the</span>
|
||
<span class="doccomment">//! // same module where the `bitflags!` macro was invoked.</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! impl fmt::Display for Flags {</span>
|
||
<span class="doccomment">//! fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {</span>
|
||
<span class="doccomment">//! write!(f, "hi!")</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! fn main() {</span>
|
||
<span class="doccomment">//! let mut flags = Flags::A | Flags::B;</span>
|
||
<span class="doccomment">//! flags.clear();</span>
|
||
<span class="doccomment">//! assert!(flags.is_empty());</span>
|
||
<span class="doccomment">//! assert_eq!(format!("{}", flags), "hi!");</span>
|
||
<span class="doccomment">//! assert_eq!(format!("{:?}", Flags::A | Flags::B), "A | B");</span>
|
||
<span class="doccomment">//! assert_eq!(format!("{:?}", Flags::B), "B");</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! # Visibility</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The generated structs and their associated flag constants are not exported</span>
|
||
<span class="doccomment">//! out of the current module by default. A definition can be exported out of</span>
|
||
<span class="doccomment">//! the current module by adding `pub` before `struct`:</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//! mod example {</span>
|
||
<span class="doccomment">//! use bitflags::bitflags;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! bitflags! {</span>
|
||
<span class="doccomment">//! pub struct Flags1: u32 {</span>
|
||
<span class="doccomment">//! const A = 0b00000001;</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! # pub</span>
|
||
<span class="doccomment">//! struct Flags2: u32 {</span>
|
||
<span class="doccomment">//! const B = 0b00000010;</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! fn main() {</span>
|
||
<span class="doccomment">//! let flag1 = example::Flags1::A;</span>
|
||
<span class="doccomment">//! let flag2 = example::Flags2::B; // error: const `B` is private</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! # Attributes</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! Attributes can be attached to the generated `struct`s by placing them</span>
|
||
<span class="doccomment">//! before the `struct` keyword.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ## Representations</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! It's valid to add a `#[repr(C)]` or `#[repr(transparent)]` attribute to a type</span>
|
||
<span class="doccomment">//! generated by `bitflags!`. In these cases, the type is guaranteed to be a newtype.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//! use bitflags::bitflags;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! bitflags! {</span>
|
||
<span class="doccomment">//! #[repr(transparent)]</span>
|
||
<span class="doccomment">//! struct Flags: u32 {</span>
|
||
<span class="doccomment">//! const A = 0b00000001;</span>
|
||
<span class="doccomment">//! const B = 0b00000010;</span>
|
||
<span class="doccomment">//! const C = 0b00000100;</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! # Trait implementations</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The `Copy`, `Clone`, `PartialEq`, `Eq`, `PartialOrd`, `Ord` and `Hash`</span>
|
||
<span class="doccomment">//! traits are automatically derived for the `struct`s using the `derive` attribute.</span>
|
||
<span class="doccomment">//! Additional traits can be derived by providing an explicit `derive`</span>
|
||
<span class="doccomment">//! attribute on `struct`.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The `Extend` and `FromIterator` traits are implemented for the `struct`s,</span>
|
||
<span class="doccomment">//! too: `Extend` adds the union of the instances of the `struct` iterated over,</span>
|
||
<span class="doccomment">//! while `FromIterator` calculates the union.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The `Binary`, `Debug`, `LowerHex`, `Octal` and `UpperHex` traits are also</span>
|
||
<span class="doccomment">//! implemented by displaying the bits value of the internal struct.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ## Operators</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The following operator traits are implemented for the generated `struct`s:</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! - `BitOr` and `BitOrAssign`: union</span>
|
||
<span class="doccomment">//! - `BitAnd` and `BitAndAssign`: intersection</span>
|
||
<span class="doccomment">//! - `BitXor` and `BitXorAssign`: toggle</span>
|
||
<span class="doccomment">//! - `Sub` and `SubAssign`: set difference</span>
|
||
<span class="doccomment">//! - `Not`: set complement</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! # Methods</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The following methods are defined for the generated `struct`s:</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! - `empty`: an empty set of flags</span>
|
||
<span class="doccomment">//! - `all`: the set of all defined flags</span>
|
||
<span class="doccomment">//! - `bits`: the raw value of the flags currently stored</span>
|
||
<span class="doccomment">//! - `from_bits`: convert from underlying bit representation, unless that</span>
|
||
<span class="doccomment">//! representation contains bits that do not correspond to a</span>
|
||
<span class="doccomment">//! defined flag</span>
|
||
<span class="doccomment">//! - `from_bits_truncate`: convert from underlying bit representation, dropping</span>
|
||
<span class="doccomment">//! any bits that do not correspond to defined flags</span>
|
||
<span class="doccomment">//! - `from_bits_unchecked`: convert from underlying bit representation, keeping</span>
|
||
<span class="doccomment">//! all bits (even those not corresponding to defined</span>
|
||
<span class="doccomment">//! flags)</span>
|
||
<span class="doccomment">//! - `is_empty`: `true` if no flags are currently stored</span>
|
||
<span class="doccomment">//! - `is_all`: `true` if currently set flags exactly equal all defined flags</span>
|
||
<span class="doccomment">//! - `intersects`: `true` if there are flags common to both `self` and `other`</span>
|
||
<span class="doccomment">//! - `contains`: `true` if all of the flags in `other` are contained within `self`</span>
|
||
<span class="doccomment">//! - `insert`: inserts the specified flags in-place</span>
|
||
<span class="doccomment">//! - `remove`: removes the specified flags in-place</span>
|
||
<span class="doccomment">//! - `toggle`: the specified flags will be inserted if not present, and removed</span>
|
||
<span class="doccomment">//! if they are.</span>
|
||
<span class="doccomment">//! - `set`: inserts or removes the specified flags depending on the passed value</span>
|
||
<span class="doccomment">//! - `intersection`: returns a new set of flags, containing only the flags present</span>
|
||
<span class="doccomment">//! in both `self` and `other` (the argument to the function).</span>
|
||
<span class="doccomment">//! - `union`: returns a new set of flags, containing any flags present in</span>
|
||
<span class="doccomment">//! either `self` or `other` (the argument to the function).</span>
|
||
<span class="doccomment">//! - `difference`: returns a new set of flags, containing all flags present in</span>
|
||
<span class="doccomment">//! `self` without any of the flags present in `other` (the</span>
|
||
<span class="doccomment">//! argument to the function).</span>
|
||
<span class="doccomment">//! - `symmetric_difference`: returns a new set of flags, containing all flags</span>
|
||
<span class="doccomment">//! present in either `self` or `other` (the argument</span>
|
||
<span class="doccomment">//! to the function), but not both.</span>
|
||
<span class="doccomment">//! - `complement`: returns a new set of flags, containing all flags which are</span>
|
||
<span class="doccomment">//! not set in `self`, but which are allowed for this type.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ## Default</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! The `Default` trait is not automatically implemented for the generated structs.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! If your default value is equal to `0` (which is the same value as calling `empty()`</span>
|
||
<span class="doccomment">//! on the generated struct), you can simply derive `Default`:</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//! use bitflags::bitflags;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! bitflags! {</span>
|
||
<span class="doccomment">//! // Results in default value with bits: 0</span>
|
||
<span class="doccomment">//! #[derive(Default)]</span>
|
||
<span class="doccomment">//! struct Flags: u32 {</span>
|
||
<span class="doccomment">//! const A = 0b00000001;</span>
|
||
<span class="doccomment">//! const B = 0b00000010;</span>
|
||
<span class="doccomment">//! const C = 0b00000100;</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! fn main() {</span>
|
||
<span class="doccomment">//! let derived_default: Flags = Default::default();</span>
|
||
<span class="doccomment">//! assert_eq!(derived_default.bits(), 0);</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! If your default value is not equal to `0` you need to implement `Default` yourself:</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//! use bitflags::bitflags;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! bitflags! {</span>
|
||
<span class="doccomment">//! struct Flags: u32 {</span>
|
||
<span class="doccomment">//! const A = 0b00000001;</span>
|
||
<span class="doccomment">//! const B = 0b00000010;</span>
|
||
<span class="doccomment">//! const C = 0b00000100;</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! // explicit `Default` implementation</span>
|
||
<span class="doccomment">//! impl Default for Flags {</span>
|
||
<span class="doccomment">//! fn default() -> Flags {</span>
|
||
<span class="doccomment">//! Flags::A | Flags::C</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! fn main() {</span>
|
||
<span class="doccomment">//! let implemented_default: Flags = Default::default();</span>
|
||
<span class="doccomment">//! assert_eq!(implemented_default, (Flags::A | Flags::C));</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! # Zero Flags</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! Flags with a value equal to zero will have some strange behavior that one should be aware of.</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//! use bitflags::bitflags;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! bitflags! {</span>
|
||
<span class="doccomment">//! struct Flags: u32 {</span>
|
||
<span class="doccomment">//! const NONE = 0b00000000;</span>
|
||
<span class="doccomment">//! const SOME = 0b00000001;</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! fn main() {</span>
|
||
<span class="doccomment">//! let empty = Flags::empty();</span>
|
||
<span class="doccomment">//! let none = Flags::NONE;</span>
|
||
<span class="doccomment">//! let some = Flags::SOME;</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! // Zero flags are treated as always present</span>
|
||
<span class="doccomment">//! assert!(empty.contains(Flags::NONE));</span>
|
||
<span class="doccomment">//! assert!(none.contains(Flags::NONE));</span>
|
||
<span class="doccomment">//! assert!(some.contains(Flags::NONE));</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! // Zero flags will be ignored when testing for emptiness</span>
|
||
<span class="doccomment">//! assert!(none.is_empty());</span>
|
||
<span class="doccomment">//! }</span>
|
||
<span class="doccomment">//! ```</span>
|
||
<span class="doccomment">//!</span>
|
||
<span class="doccomment">//! Users should generally avoid defining a flag with a value of zero.</span>
|
||
|
||
<span class="attribute">#![<span class="ident">cfg_attr</span>(<span class="ident">not</span>(<span class="ident">test</span>), <span class="ident">no_std</span>)]</span>
|
||
<span class="attribute">#![<span class="ident">doc</span>(<span class="ident">html_root_url</span> <span class="op">=</span> <span class="string">"https://docs.rs/bitflags/1.3.2"</span>)]</span>
|
||
|
||
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">core</span> <span class="kw">as</span> <span class="ident">_core</span>;
|
||
|
||
<span class="doccomment">/// The macro used to generate the flag structures.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// See the [crate level docs](../bitflags/index.html) for complete documentation.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Example</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="doccomment">/// use bitflags::bitflags;</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// bitflags! {</span>
|
||
<span class="doccomment">/// struct Flags: u32 {</span>
|
||
<span class="doccomment">/// const A = 0b00000001;</span>
|
||
<span class="doccomment">/// const B = 0b00000010;</span>
|
||
<span class="doccomment">/// const C = 0b00000100;</span>
|
||
<span class="doccomment">/// const ABC = Self::A.bits | Self::B.bits | Self::C.bits;</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// fn main() {</span>
|
||
<span class="doccomment">/// let e1 = Flags::A | Flags::C;</span>
|
||
<span class="doccomment">/// let e2 = Flags::B | Flags::C;</span>
|
||
<span class="doccomment">/// assert_eq!((e1 | e2), Flags::ABC); // union</span>
|
||
<span class="doccomment">/// assert_eq!((e1 & e2), Flags::C); // intersection</span>
|
||
<span class="doccomment">/// assert_eq!((e1 - e2), Flags::A); // set difference</span>
|
||
<span class="doccomment">/// assert_eq!(!e2, Flags::A); // set complement</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// The generated `struct`s can also be extended with type and trait</span>
|
||
<span class="doccomment">/// implementations:</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="doccomment">/// use std::fmt;</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// use bitflags::bitflags;</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// bitflags! {</span>
|
||
<span class="doccomment">/// struct Flags: u32 {</span>
|
||
<span class="doccomment">/// const A = 0b00000001;</span>
|
||
<span class="doccomment">/// const B = 0b00000010;</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// impl Flags {</span>
|
||
<span class="doccomment">/// pub fn clear(&mut self) {</span>
|
||
<span class="doccomment">/// self.bits = 0; // The `bits` field can be accessed from within the</span>
|
||
<span class="doccomment">/// // same module where the `bitflags!` macro was invoked.</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// impl fmt::Display for Flags {</span>
|
||
<span class="doccomment">/// fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {</span>
|
||
<span class="doccomment">/// write!(f, "hi!")</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// fn main() {</span>
|
||
<span class="doccomment">/// let mut flags = Flags::A | Flags::B;</span>
|
||
<span class="doccomment">/// flags.clear();</span>
|
||
<span class="doccomment">/// assert!(flags.is_empty());</span>
|
||
<span class="doccomment">/// assert_eq!(format!("{}", flags), "hi!");</span>
|
||
<span class="doccomment">/// assert_eq!(format!("{:?}", Flags::A | Flags::B), "A | B");</span>
|
||
<span class="doccomment">/// assert_eq!(format!("{:?}", Flags::B), "B");</span>
|
||
<span class="doccomment">/// }</span>
|
||
<span class="doccomment">/// ```</span>
|
||
<span class="attribute">#[<span class="ident">macro_export</span>(<span class="ident">local_inner_macros</span>)]</span>
|
||
<span class="macro">macro_rules!</span> <span class="ident">bitflags</span> {
|
||
(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">outer</span>:<span class="ident">meta</span>]</span>)<span class="op">*</span>
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">vis</span>:<span class="ident">vis</span> <span class="kw">struct</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span>:<span class="ident">ident</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span>:<span class="ident">ty</span> {
|
||
$(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">inner</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">args</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">const</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>:<span class="ident">ident</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">value</span>:<span class="ident">expr</span>;
|
||
)<span class="op">*</span>
|
||
}
|
||
|
||
$(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">t</span>:<span class="ident">tt</span>)<span class="op">*</span>
|
||
) => {
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">outer</span>]</span>)<span class="op">*</span>
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Copy</span>, <span class="ident">PartialEq</span>, <span class="ident">Eq</span>, <span class="ident">Clone</span>, <span class="ident">PartialOrd</span>, <span class="ident">Ord</span>, <span class="ident">Hash</span>)]</span>
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">vis</span> <span class="kw">struct</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="ident">bits</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span>,
|
||
}
|
||
|
||
<span class="macro">__impl_bitflags!</span> {
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span> {
|
||
$(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">inner</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">args</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">value</span>;
|
||
)<span class="op">*</span>
|
||
}
|
||
}
|
||
|
||
<span class="macro">bitflags!</span> {
|
||
$(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">t</span>)<span class="op">*</span>
|
||
}
|
||
};
|
||
() => {};
|
||
}
|
||
|
||
<span class="comment">// A helper macro to implement the `all` function.</span>
|
||
<span class="attribute">#[<span class="ident">macro_export</span>(<span class="ident">local_inner_macros</span>)]</span>
|
||
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
|
||
<span class="macro">macro_rules!</span> <span class="ident">__impl_all_bitflags</span> {
|
||
(
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span>:<span class="ident">ident</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span>:<span class="ident">ty</span> {
|
||
$(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">attr</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">args</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>:<span class="ident">ident</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">value</span>:<span class="ident">expr</span>;
|
||
)<span class="op">+</span>
|
||
}
|
||
) => {
|
||
<span class="comment">// See `Debug::fmt` for why this approach is taken.</span>
|
||
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">non_snake_case</span>)]</span>
|
||
<span class="kw">trait</span> <span class="ident">__BitFlags</span> {
|
||
$(
|
||
<span class="kw">const</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span> <span class="op">=</span> <span class="number">0</span>;
|
||
)<span class="op">+</span>
|
||
}
|
||
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">non_snake_case</span>)]</span>
|
||
<span class="kw">impl</span> <span class="ident">__BitFlags</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
$(
|
||
<span class="macro">__impl_bitflags!</span> {
|
||
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">deprecated</span>)]</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">attr</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">args</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">const</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span> <span class="op">=</span> <span class="self">Self</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>.<span class="ident">bits</span>;
|
||
}
|
||
)<span class="op">+</span>
|
||
}
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: $(<span class="op"><</span><span class="self">Self</span> <span class="kw">as</span> <span class="ident">__BitFlags</span><span class="op">></span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>)<span class="op">|</span><span class="op">+</span> }
|
||
};
|
||
(
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span>:<span class="ident">ident</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span>:<span class="ident">ty</span> { }
|
||
) => {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="number">0</span> }
|
||
};
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">macro_export</span>(<span class="ident">local_inner_macros</span>)]</span>
|
||
<span class="attribute">#[<span class="ident">doc</span>(<span class="ident">hidden</span>)]</span>
|
||
<span class="macro">macro_rules!</span> <span class="ident">__impl_bitflags</span> {
|
||
(
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span>:<span class="ident">ident</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span>:<span class="ident">ty</span> {
|
||
$(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">attr</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">args</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>:<span class="ident">ident</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">value</span>:<span class="ident">expr</span>;
|
||
)<span class="op">*</span>
|
||
}
|
||
) => {
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Debug</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Formatter</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Result</span> {
|
||
<span class="comment">// This convoluted approach is to handle #[cfg]-based flag</span>
|
||
<span class="comment">// omission correctly. For example it needs to support:</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// #[cfg(unix)] const A: Flag = /* ... */;</span>
|
||
<span class="comment">// #[cfg(windows)] const B: Flag = /* ... */;</span>
|
||
|
||
<span class="comment">// Unconditionally define a check for every flag, even disabled</span>
|
||
<span class="comment">// ones.</span>
|
||
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">non_snake_case</span>)]</span>
|
||
<span class="kw">trait</span> <span class="ident">__BitFlags</span> {
|
||
$(
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">bool</span> { <span class="bool-val">false</span> }
|
||
)<span class="op">*</span>
|
||
}
|
||
|
||
<span class="comment">// Conditionally override the check for just those flags that</span>
|
||
<span class="comment">// are not #[cfg]ed away.</span>
|
||
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">non_snake_case</span>)]</span>
|
||
<span class="kw">impl</span> <span class="ident">__BitFlags</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
$(
|
||
<span class="macro">__impl_bitflags!</span> {
|
||
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">deprecated</span>)]</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">attr</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">args</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">fn</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">bool</span> {
|
||
<span class="kw">if</span> <span class="self">Self</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>.<span class="ident">bits</span> <span class="op">==</span> <span class="number">0</span> <span class="op">&&</span> <span class="self">self</span>.<span class="ident">bits</span> <span class="op">!</span><span class="op">=</span> <span class="number">0</span> {
|
||
<span class="bool-val">false</span>
|
||
} <span class="kw">else</span> {
|
||
<span class="self">self</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="self">Self</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>.<span class="ident">bits</span> <span class="op">==</span> <span class="self">Self</span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>.<span class="ident">bits</span>
|
||
}
|
||
}
|
||
}
|
||
)<span class="op">*</span>
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">first</span> <span class="op">=</span> <span class="bool-val">true</span>;
|
||
$(
|
||
<span class="kw">if</span> <span class="op"><</span><span class="self">Self</span> <span class="kw">as</span> <span class="ident">__BitFlags</span><span class="op">></span>::<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>(<span class="self">self</span>) {
|
||
<span class="kw">if</span> <span class="op">!</span><span class="ident">first</span> {
|
||
<span class="ident">f</span>.<span class="ident">write_str</span>(<span class="string">" | "</span>)<span class="question-mark">?</span>;
|
||
}
|
||
<span class="ident">first</span> <span class="op">=</span> <span class="bool-val">false</span>;
|
||
<span class="ident">f</span>.<span class="ident">write_str</span>(<span class="macro-nonterminal">$</span><span class="macro">crate::_core::stringify!</span>(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>))<span class="question-mark">?</span>;
|
||
}
|
||
)<span class="op">*</span>
|
||
<span class="kw">let</span> <span class="ident">extra_bits</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="op">!</span><span class="ident"><span class="self">Self</span>::all</span>().<span class="ident">bits</span>();
|
||
<span class="kw">if</span> <span class="ident">extra_bits</span> <span class="op">!</span><span class="op">=</span> <span class="number">0</span> {
|
||
<span class="kw">if</span> <span class="op">!</span><span class="ident">first</span> {
|
||
<span class="ident">f</span>.<span class="ident">write_str</span>(<span class="string">" | "</span>)<span class="question-mark">?</span>;
|
||
}
|
||
<span class="ident">first</span> <span class="op">=</span> <span class="bool-val">false</span>;
|
||
<span class="ident">f</span>.<span class="ident">write_str</span>(<span class="string">"0x"</span>)<span class="question-mark">?</span>;
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::LowerHex::fmt</span>(<span class="kw-2">&</span><span class="ident">extra_bits</span>, <span class="ident">f</span>)<span class="question-mark">?</span>;
|
||
}
|
||
<span class="kw">if</span> <span class="ident">first</span> {
|
||
<span class="ident">f</span>.<span class="ident">write_str</span>(<span class="string">"(empty)"</span>)<span class="question-mark">?</span>;
|
||
}
|
||
<span class="prelude-val">Ok</span>(())
|
||
}
|
||
}
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Binary</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Formatter</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Result</span> {
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Binary::fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">bits</span>, <span class="ident">f</span>)
|
||
}
|
||
}
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Octal</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Formatter</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Result</span> {
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Octal::fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">bits</span>, <span class="ident">f</span>)
|
||
}
|
||
}
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::LowerHex</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Formatter</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Result</span> {
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::LowerHex::fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">bits</span>, <span class="ident">f</span>)
|
||
}
|
||
}
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::UpperHex</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">f</span>: <span class="kw-2">&mut</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Formatter</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::Result</span> {
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::fmt::UpperHex::fmt</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">bits</span>, <span class="ident">f</span>)
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">allow</span>(<span class="ident">dead_code</span>)]</span>
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
$(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">attr</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">args</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span>: <span class="self">Self</span> <span class="op">=</span> <span class="self">Self</span> { <span class="ident">bits</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">value</span> };
|
||
)<span class="op">*</span>
|
||
|
||
<span class="doccomment">/// Returns an empty set of flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">empty</span>() -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="number">0</span> }
|
||
}
|
||
|
||
<span class="doccomment">/// Returns the set containing all flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">all</span>() -> <span class="self">Self</span> {
|
||
<span class="macro">__impl_all_bitflags!</span> {
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span> {
|
||
$(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">attr</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">args</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">Flag</span> <span class="op">=</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">value</span>;
|
||
)<span class="op">*</span>
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Returns the raw value of the flags currently stored.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">bits</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span> {
|
||
<span class="self">self</span>.<span class="ident">bits</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Convert from underlying bit representation, unless that</span>
|
||
<span class="doccomment">/// representation contains bits that do not correspond to a flag.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">from_bits</span>(<span class="ident">bits</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span>) -> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::option::Option</span><span class="op"><</span><span class="self">Self</span><span class="op">></span> {
|
||
<span class="kw">if</span> (<span class="ident">bits</span> <span class="op">&</span> <span class="op">!</span><span class="ident"><span class="self">Self</span>::all</span>().<span class="ident">bits</span>()) <span class="op">==</span> <span class="number">0</span> {
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::option::Option::Some</span>(<span class="self">Self</span> { <span class="ident">bits</span> })
|
||
} <span class="kw">else</span> {
|
||
<span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::option::Option::None</span>
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Convert from underlying bit representation, dropping any bits</span>
|
||
<span class="doccomment">/// that do not correspond to flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">from_bits_truncate</span>(<span class="ident">bits</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="ident">bits</span> <span class="op">&</span> <span class="ident"><span class="self">Self</span>::all</span>().<span class="ident">bits</span> }
|
||
}
|
||
|
||
<span class="doccomment">/// Convert from underlying bit representation, preserving all</span>
|
||
<span class="doccomment">/// bits (even those not corresponding to a defined flag).</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// # Safety</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// The caller of the `bitflags!` macro can chose to allow or</span>
|
||
<span class="doccomment">/// disallow extra bits for their bitflags type.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// The caller of `from_bits_unchecked()` has to ensure that</span>
|
||
<span class="doccomment">/// all bits correspond to a defined flag or that extra bits</span>
|
||
<span class="doccomment">/// are valid for this bitflags type.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">unsafe</span> <span class="kw">fn</span> <span class="ident">from_bits_unchecked</span>(<span class="ident">bits</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">T</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span> }
|
||
}
|
||
|
||
<span class="doccomment">/// Returns `true` if no flags are currently stored.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">is_empty</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">bool</span> {
|
||
<span class="self">self</span>.<span class="ident">bits</span>() <span class="op">==</span> <span class="ident"><span class="self">Self</span>::empty</span>().<span class="ident">bits</span>()
|
||
}
|
||
|
||
<span class="doccomment">/// Returns `true` if all flags are currently set.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">is_all</span>(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="ident">bool</span> {
|
||
<span class="ident"><span class="self">Self</span>::all</span>().<span class="ident">bits</span> <span class="op">|</span> <span class="self">self</span>.<span class="ident">bits</span> <span class="op">==</span> <span class="self">self</span>.<span class="ident">bits</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Returns `true` if there are flags common to both `self` and `other`.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">intersects</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident">bool</span> {
|
||
<span class="op">!</span>(<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="ident">other</span>.<span class="ident">bits</span>}).<span class="ident">is_empty</span>()
|
||
}
|
||
|
||
<span class="doccomment">/// Returns `true` if all of the flags in `other` are contained within `self`.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">contains</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="ident">bool</span> {
|
||
(<span class="self">self</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="ident">other</span>.<span class="ident">bits</span>) <span class="op">==</span> <span class="ident">other</span>.<span class="ident">bits</span>
|
||
}
|
||
|
||
<span class="doccomment">/// Inserts the specified flags in-place.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">insert</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) {
|
||
<span class="self">self</span>.<span class="ident">bits</span> <span class="op">|</span><span class="op">=</span> <span class="ident">other</span>.<span class="ident">bits</span>;
|
||
}
|
||
|
||
<span class="doccomment">/// Removes the specified flags in-place.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">remove</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) {
|
||
<span class="self">self</span>.<span class="ident">bits</span> <span class="op">&=</span> <span class="op">!</span><span class="ident">other</span>.<span class="ident">bits</span>;
|
||
}
|
||
|
||
<span class="doccomment">/// Toggles the specified flags in-place.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">toggle</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) {
|
||
<span class="self">self</span>.<span class="ident">bits</span> <span class="op">^</span><span class="op">=</span> <span class="ident">other</span>.<span class="ident">bits</span>;
|
||
}
|
||
|
||
<span class="doccomment">/// Inserts or removes the specified flags depending on the passed value.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">set</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>, <span class="ident">value</span>: <span class="ident">bool</span>) {
|
||
<span class="kw">if</span> <span class="ident">value</span> {
|
||
<span class="self">self</span>.<span class="ident">insert</span>(<span class="ident">other</span>);
|
||
} <span class="kw">else</span> {
|
||
<span class="self">self</span>.<span class="ident">remove</span>(<span class="ident">other</span>);
|
||
}
|
||
}
|
||
|
||
<span class="doccomment">/// Returns the intersection between the flags in `self` and</span>
|
||
<span class="doccomment">/// `other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Specifically, the returned set contains only the flags which are</span>
|
||
<span class="doccomment">/// present in *both* `self` *and* `other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This is equivalent to using the `&` operator (e.g.</span>
|
||
<span class="doccomment">/// [`ops::BitAnd`]), as in `flags & other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [`ops::BitAnd`]: https://doc.rust-lang.org/std/ops/trait.BitAnd.html</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="attribute">#[<span class="ident">must_use</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">intersection</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="ident">other</span>.<span class="ident">bits</span> }
|
||
}
|
||
|
||
<span class="doccomment">/// Returns the union of between the flags in `self` and `other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Specifically, the returned set contains all flags which are</span>
|
||
<span class="doccomment">/// present in *either* `self` *or* `other`, including any which are</span>
|
||
<span class="doccomment">/// present in both (see [`Self::symmetric_difference`] if that</span>
|
||
<span class="doccomment">/// is undesirable).</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This is equivalent to using the `|` operator (e.g.</span>
|
||
<span class="doccomment">/// [`ops::BitOr`]), as in `flags | other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [`ops::BitOr`]: https://doc.rust-lang.org/std/ops/trait.BitOr.html</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="attribute">#[<span class="ident">must_use</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">union</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">|</span> <span class="ident">other</span>.<span class="ident">bits</span> }
|
||
}
|
||
|
||
<span class="doccomment">/// Returns the difference between the flags in `self` and `other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Specifically, the returned set contains all flags present in</span>
|
||
<span class="doccomment">/// `self`, except for the ones present in `other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// It is also conceptually equivalent to the "bit-clear" operation:</span>
|
||
<span class="doccomment">/// `flags & !other` (and this syntax is also supported).</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This is equivalent to using the `-` operator (e.g.</span>
|
||
<span class="doccomment">/// [`ops::Sub`]), as in `flags - other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [`ops::Sub`]: https://doc.rust-lang.org/std/ops/trait.Sub.html</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="attribute">#[<span class="ident">must_use</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">difference</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="op">!</span><span class="ident">other</span>.<span class="ident">bits</span> }
|
||
}
|
||
|
||
<span class="doccomment">/// Returns the [symmetric difference][sym-diff] between the flags</span>
|
||
<span class="doccomment">/// in `self` and `other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Specifically, the returned set contains the flags present which</span>
|
||
<span class="doccomment">/// are present in `self` or `other`, but that are not present in</span>
|
||
<span class="doccomment">/// both. Equivalently, it contains the flags present in *exactly</span>
|
||
<span class="doccomment">/// one* of the sets `self` and `other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This is equivalent to using the `^` operator (e.g.</span>
|
||
<span class="doccomment">/// [`ops::BitXor`]), as in `flags ^ other`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [sym-diff]: https://en.wikipedia.org/wiki/Symmetric_difference</span>
|
||
<span class="doccomment">/// [`ops::BitXor`]: https://doc.rust-lang.org/std/ops/trait.BitXor.html</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="attribute">#[<span class="ident">must_use</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">symmetric_difference</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">^</span> <span class="ident">other</span>.<span class="ident">bits</span> }
|
||
}
|
||
|
||
<span class="doccomment">/// Returns the complement of this set of flags.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Specifically, the returned set contains all the flags which are</span>
|
||
<span class="doccomment">/// not set in `self`, but which are allowed for this type.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// Alternatively, it can be thought of as the set difference</span>
|
||
<span class="doccomment">/// between [`Self::all()`] and `self` (e.g. `Self::all() - self`)</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// This is equivalent to using the `!` operator (e.g.</span>
|
||
<span class="doccomment">/// [`ops::Not`]), as in `!flags`.</span>
|
||
<span class="doccomment">///</span>
|
||
<span class="doccomment">/// [`Self::all()`]: Self::all</span>
|
||
<span class="doccomment">/// [`ops::Not`]: https://doc.rust-lang.org/std/ops/trait.Not.html</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="attribute">#[<span class="ident">must_use</span>]</span>
|
||
<span class="kw">pub</span> <span class="kw">const</span> <span class="kw">fn</span> <span class="ident">complement</span>(<span class="self">self</span>) -> <span class="self">Self</span> {
|
||
<span class="ident"><span class="self">Self</span>::from_bits_truncate</span>(<span class="op">!</span><span class="self">self</span>.<span class="ident">bits</span>)
|
||
}
|
||
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::BitOr</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="self">Self</span>;
|
||
|
||
<span class="doccomment">/// Returns the union of the two sets of flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">bitor</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">|</span> <span class="ident">other</span>.<span class="ident">bits</span> }
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::BitOrAssign</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="doccomment">/// Adds the set of flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">bitor_assign</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) {
|
||
<span class="self">self</span>.<span class="ident">bits</span> <span class="op">|</span><span class="op">=</span> <span class="ident">other</span>.<span class="ident">bits</span>;
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::BitXor</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="self">Self</span>;
|
||
|
||
<span class="doccomment">/// Returns the left flags, but with all the right flags toggled.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">bitxor</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">^</span> <span class="ident">other</span>.<span class="ident">bits</span> }
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::BitXorAssign</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="doccomment">/// Toggles the set of flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">bitxor_assign</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) {
|
||
<span class="self">self</span>.<span class="ident">bits</span> <span class="op">^</span><span class="op">=</span> <span class="ident">other</span>.<span class="ident">bits</span>;
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::BitAnd</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="self">Self</span>;
|
||
|
||
<span class="doccomment">/// Returns the intersection between the two sets of flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">bitand</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="ident">other</span>.<span class="ident">bits</span> }
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::BitAndAssign</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="doccomment">/// Disables all flags disabled in the set.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">bitand_assign</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) {
|
||
<span class="self">self</span>.<span class="ident">bits</span> <span class="op">&=</span> <span class="ident">other</span>.<span class="ident">bits</span>;
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::Sub</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="self">Self</span>;
|
||
|
||
<span class="doccomment">/// Returns the set difference of the two sets of flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">sub</span>(<span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="self">self</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="op">!</span><span class="ident">other</span>.<span class="ident">bits</span> }
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::SubAssign</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="doccomment">/// Disables all flags enabled in the set.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">sub_assign</span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">other</span>: <span class="self">Self</span>) {
|
||
<span class="self">self</span>.<span class="ident">bits</span> <span class="op">&=</span> <span class="op">!</span><span class="ident">other</span>.<span class="ident">bits</span>;
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::ops::Not</span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">type</span> <span class="ident">Output</span> <span class="op">=</span> <span class="self">Self</span>;
|
||
|
||
<span class="doccomment">/// Returns the complement of this set of flags.</span>
|
||
<span class="attribute">#[<span class="ident">inline</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">not</span>(<span class="self">self</span>) -> <span class="self">Self</span> {
|
||
<span class="self">Self</span> { <span class="ident">bits</span>: <span class="op">!</span><span class="self">self</span>.<span class="ident">bits</span> } <span class="op">&</span> <span class="ident"><span class="self">Self</span>::all</span>()
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::iter::Extend</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">fn</span> <span class="ident">extend</span><span class="op"><</span><span class="ident">T</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::iter::IntoIterator</span><span class="op"><</span><span class="ident">Item</span><span class="op">=</span><span class="self">Self</span><span class="op">></span><span class="op">></span>(<span class="kw-2">&mut</span> <span class="self">self</span>, <span class="ident">iterator</span>: <span class="ident">T</span>) {
|
||
<span class="kw">for</span> <span class="ident">item</span> <span class="kw">in</span> <span class="ident">iterator</span> {
|
||
<span class="self">self</span>.<span class="ident">insert</span>(<span class="ident">item</span>)
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">impl</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::iter::FromIterator</span><span class="op"><</span><span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span><span class="op">></span> <span class="kw">for</span> <span class="macro-nonterminal">$</span><span class="macro-nonterminal">BitFlags</span> {
|
||
<span class="kw">fn</span> <span class="ident">from_iter</span><span class="op"><</span><span class="ident">T</span>: <span class="macro-nonterminal">$</span><span class="macro-nonterminal">crate::_core::iter::IntoIterator</span><span class="op"><</span><span class="ident">Item</span><span class="op">=</span><span class="self">Self</span><span class="op">></span><span class="op">></span>(<span class="ident">iterator</span>: <span class="ident">T</span>) -> <span class="self">Self</span> {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">result</span> <span class="op">=</span> <span class="ident"><span class="self">Self</span>::empty</span>();
|
||
<span class="ident">result</span>.<span class="ident">extend</span>(<span class="ident">iterator</span>);
|
||
<span class="ident">result</span>
|
||
}
|
||
}
|
||
};
|
||
|
||
<span class="comment">// Every attribute that the user writes on a const is applied to the</span>
|
||
<span class="comment">// corresponding const that we generate, but within the implementation of</span>
|
||
<span class="comment">// Debug and all() we want to ignore everything but #[cfg] attributes. In</span>
|
||
<span class="comment">// particular, including a #[deprecated] attribute on those items would fail</span>
|
||
<span class="comment">// to compile.</span>
|
||
<span class="comment">// https://github.com/bitflags/bitflags/issues/109</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// Input:</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// ? #[cfg(feature = "advanced")]</span>
|
||
<span class="comment">// ? #[deprecated(note = "Use something else.")]</span>
|
||
<span class="comment">// ? #[doc = r"High quality documentation."]</span>
|
||
<span class="comment">// fn f() -> i32 { /* ... */ }</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// Output:</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// #[cfg(feature = "advanced")]</span>
|
||
<span class="comment">// fn f() -> i32 { /* ... */ }</span>
|
||
(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>:<span class="ident">meta</span>]</span>)<span class="op">*</span>
|
||
<span class="question-mark">?</span> <span class="attribute">#[<span class="ident">cfg</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">cfgargs</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rest</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">restargs</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">fn</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>:<span class="ident">tt</span>)<span class="op">*</span>
|
||
) => {
|
||
<span class="macro">__impl_bitflags!</span> {
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>]</span>)<span class="op">*</span>
|
||
<span class="attribute">#[<span class="ident">cfg</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">cfgargs</span>)<span class="kw-2">*</span>]</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rest</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">restargs</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">fn</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>)<span class="op">*</span>
|
||
}
|
||
};
|
||
(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>:<span class="ident">meta</span>]</span>)<span class="op">*</span>
|
||
<span class="comment">// $next != `cfg`</span>
|
||
<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">next</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">nextargs</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rest</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">restargs</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">fn</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>:<span class="ident">tt</span>)<span class="op">*</span>
|
||
) => {
|
||
<span class="macro">__impl_bitflags!</span> {
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>]</span>)<span class="op">*</span>
|
||
<span class="comment">// $next filtered out</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rest</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">restargs</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">fn</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>)<span class="op">*</span>
|
||
}
|
||
};
|
||
(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>:<span class="ident">meta</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">fn</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>:<span class="ident">tt</span>)<span class="op">*</span>
|
||
) => {
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">fn</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>)<span class="op">*</span>
|
||
};
|
||
|
||
<span class="comment">// Every attribute that the user writes on a const is applied to the</span>
|
||
<span class="comment">// corresponding const that we generate, but within the implementation of</span>
|
||
<span class="comment">// Debug and all() we want to ignore everything but #[cfg] attributes. In</span>
|
||
<span class="comment">// particular, including a #[deprecated] attribute on those items would fail</span>
|
||
<span class="comment">// to compile.</span>
|
||
<span class="comment">// https://github.com/bitflags/bitflags/issues/109</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// const version</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// Input:</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// ? #[cfg(feature = "advanced")]</span>
|
||
<span class="comment">// ? #[deprecated(note = "Use something else.")]</span>
|
||
<span class="comment">// ? #[doc = r"High quality documentation."]</span>
|
||
<span class="comment">// const f: i32 { /* ... */ }</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// Output:</span>
|
||
<span class="comment">//</span>
|
||
<span class="comment">// #[cfg(feature = "advanced")]</span>
|
||
<span class="comment">// const f: i32 { /* ... */ }</span>
|
||
(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>:<span class="ident">meta</span>]</span>)<span class="op">*</span>
|
||
<span class="question-mark">?</span> <span class="attribute">#[<span class="ident">cfg</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">cfgargs</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rest</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">restargs</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">const</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>:<span class="ident">tt</span>)<span class="op">*</span>
|
||
) => {
|
||
<span class="macro">__impl_bitflags!</span> {
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>]</span>)<span class="op">*</span>
|
||
<span class="attribute">#[<span class="ident">cfg</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">cfgargs</span>)<span class="kw-2">*</span>]</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rest</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">restargs</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">const</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>)<span class="op">*</span>
|
||
}
|
||
};
|
||
(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>:<span class="ident">meta</span>]</span>)<span class="op">*</span>
|
||
<span class="comment">// $next != `cfg`</span>
|
||
<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">next</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">nextargs</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rest</span>:<span class="ident">ident</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">restargs</span>:<span class="ident">tt</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">const</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>:<span class="ident">tt</span>)<span class="op">*</span>
|
||
) => {
|
||
<span class="macro">__impl_bitflags!</span> {
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>]</span>)<span class="op">*</span>
|
||
<span class="comment">// $next filtered out</span>
|
||
$(<span class="question-mark">?</span> <span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">rest</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">restargs</span>)<span class="kw-2">*</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">const</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>)<span class="op">*</span>
|
||
}
|
||
};
|
||
(
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>:<span class="ident">meta</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">const</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>:<span class="ident">tt</span>)<span class="op">*</span>
|
||
) => {
|
||
$(<span class="attribute">#[<span class="macro-nonterminal">$</span><span class="macro-nonterminal">filtered</span>]</span>)<span class="op">*</span>
|
||
<span class="kw">const</span> $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">item</span>)<span class="op">*</span>
|
||
};
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">feature</span> <span class="op">=</span> <span class="string">"example_generated"</span>)]</span>
|
||
<span class="kw">pub</span> <span class="kw">mod</span> <span class="ident">example_generated</span>;
|
||
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">test</span>)]</span>
|
||
<span class="kw">mod</span> <span class="ident">tests</span> {
|
||
<span class="kw">use</span> <span class="ident">std::collections::hash_map::DefaultHasher</span>;
|
||
<span class="kw">use</span> <span class="ident">std::hash</span>::{<span class="ident">Hash</span>, <span class="ident">Hasher</span>};
|
||
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="attribute">#[<span class="ident">doc</span> <span class="op">=</span> <span class="string">"> The first principle is that you must not fool yourself — and"</span>]</span>
|
||
<span class="attribute">#[<span class="ident">doc</span> <span class="op">=</span> <span class="string">"> you are the easiest person to fool."</span>]</span>
|
||
<span class="attribute">#[<span class="ident">doc</span> <span class="op">=</span> <span class="string">"> "</span>]</span>
|
||
<span class="attribute">#[<span class="ident">doc</span> <span class="op">=</span> <span class="string">"> - Richard Feynman"</span>]</span>
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Default</span>)]</span>
|
||
<span class="kw">struct</span> <span class="ident">Flags</span>: <span class="ident">u32</span> {
|
||
<span class="kw">const</span> <span class="ident">A</span> <span class="op">=</span> <span class="number">0b00000001</span>;
|
||
<span class="attribute">#[<span class="ident">doc</span> <span class="op">=</span> <span class="string">"<pcwalton> macros are way better at generating code than trans is"</span>]</span>
|
||
<span class="kw">const</span> <span class="ident">B</span> <span class="op">=</span> <span class="number">0b00000010</span>;
|
||
<span class="kw">const</span> <span class="ident">C</span> <span class="op">=</span> <span class="number">0b00000100</span>;
|
||
<span class="attribute">#[<span class="ident">doc</span> <span class="op">=</span> <span class="string">"* cmr bed"</span>]</span>
|
||
<span class="attribute">#[<span class="ident">doc</span> <span class="op">=</span> <span class="string">"* strcat table"</span>]</span>
|
||
<span class="attribute">#[<span class="ident">doc</span> <span class="op">=</span> <span class="string">"<strcat> wait what?"</span>]</span>
|
||
<span class="kw">const</span> <span class="ident">ABC</span> <span class="op">=</span> <span class="ident"><span class="self">Self</span>::A</span>.<span class="ident">bits</span> <span class="op">|</span> <span class="ident"><span class="self">Self</span>::B</span>.<span class="ident">bits</span> <span class="op">|</span> <span class="ident"><span class="self">Self</span>::C</span>.<span class="ident">bits</span>;
|
||
}
|
||
|
||
<span class="kw">struct</span> <span class="ident">_CfgFlags</span>: <span class="ident">u32</span> {
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">unix</span>)]</span>
|
||
<span class="kw">const</span> <span class="ident">_CFG_A</span> <span class="op">=</span> <span class="number">0b01</span>;
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">windows</span>)]</span>
|
||
<span class="kw">const</span> <span class="ident">_CFG_B</span> <span class="op">=</span> <span class="number">0b01</span>;
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">unix</span>)]</span>
|
||
<span class="kw">const</span> <span class="ident">_CFG_C</span> <span class="op">=</span> <span class="ident"><span class="self">Self</span>::_CFG_A</span>.<span class="ident">bits</span> <span class="op">|</span> <span class="number">0b10</span>;
|
||
}
|
||
|
||
<span class="kw">struct</span> <span class="ident">AnotherSetOfFlags</span>: <span class="ident">i8</span> {
|
||
<span class="kw">const</span> <span class="ident">ANOTHER_FLAG</span> <span class="op">=</span> <span class="op">-</span><span class="number">1_i8</span>;
|
||
}
|
||
|
||
<span class="kw">struct</span> <span class="ident">LongFlags</span>: <span class="ident">u32</span> {
|
||
<span class="kw">const</span> <span class="ident">LONG_A</span> <span class="op">=</span> <span class="number">0b1111111111111111</span>;
|
||
}
|
||
}
|
||
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="kw">struct</span> <span class="ident">EmptyFlags</span>: <span class="ident">u32</span> {
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_bits</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::empty</span>().<span class="ident">bits</span>(), <span class="number">0b00000000</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::A</span>.<span class="ident">bits</span>(), <span class="number">0b00000001</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::ABC</span>.<span class="ident">bits</span>(), <span class="number">0b00000111</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">AnotherSetOfFlags::empty</span>().<span class="ident">bits</span>(), <span class="number">0b00</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>.<span class="ident">bits</span>(), <span class="op">!</span><span class="number">0_i8</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">EmptyFlags::empty</span>().<span class="ident">bits</span>(), <span class="number">0b00000000</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_from_bits</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="ident">Flags::empty</span>()));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits</span>(<span class="number">0b1</span>), <span class="prelude-val">Some</span>(<span class="ident">Flags::A</span>));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits</span>(<span class="number">0b10</span>), <span class="prelude-val">Some</span>(<span class="ident">Flags::B</span>));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits</span>(<span class="number">0b11</span>), <span class="prelude-val">Some</span>(<span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits</span>(<span class="number">0b1000</span>), <span class="prelude-val">None</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">AnotherSetOfFlags::from_bits</span>(<span class="op">!</span><span class="number">0_i8</span>),
|
||
<span class="prelude-val">Some</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>)
|
||
);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">EmptyFlags::from_bits</span>(<span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="ident">EmptyFlags::empty</span>()));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">EmptyFlags::from_bits</span>(<span class="number">0b1</span>), <span class="prelude-val">None</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_from_bits_truncate</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits_truncate</span>(<span class="number">0</span>), <span class="ident">Flags::empty</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits_truncate</span>(<span class="number">0b1</span>), <span class="ident">Flags::A</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits_truncate</span>(<span class="number">0b10</span>), <span class="ident">Flags::B</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits_truncate</span>(<span class="number">0b11</span>), (<span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits_truncate</span>(<span class="number">0b1000</span>), <span class="ident">Flags::empty</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::from_bits_truncate</span>(<span class="number">0b1001</span>), <span class="ident">Flags::A</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">AnotherSetOfFlags::from_bits_truncate</span>(<span class="number">0_i8</span>),
|
||
<span class="ident">AnotherSetOfFlags::empty</span>()
|
||
);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">EmptyFlags::from_bits_truncate</span>(<span class="number">0</span>), <span class="ident">EmptyFlags::empty</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="ident">EmptyFlags::from_bits_truncate</span>(<span class="number">0b1</span>), <span class="ident">EmptyFlags::empty</span>());
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_from_bits_unchecked</span>() {
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b1000</span>) };
|
||
<span class="macro">assert_eq!</span>(<span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0</span>) }, <span class="ident">Flags::empty</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b1</span>) }, <span class="ident">Flags::A</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b10</span>) }, <span class="ident">Flags::B</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b11</span>) },
|
||
(<span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>)
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b1000</span>) },
|
||
(<span class="ident">extra</span> <span class="op">|</span> <span class="ident">Flags::empty</span>())
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b1001</span>) },
|
||
(<span class="ident">extra</span> <span class="op">|</span> <span class="ident">Flags::A</span>)
|
||
);
|
||
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">EmptyFlags::from_bits_unchecked</span>(<span class="number">0b1000</span>) };
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="kw">unsafe</span> { <span class="ident">EmptyFlags::from_bits_unchecked</span>(<span class="number">0b1000</span>) },
|
||
(<span class="ident">extra</span> <span class="op">|</span> <span class="ident">EmptyFlags::empty</span>())
|
||
);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_is_empty</span>() {
|
||
<span class="macro">assert!</span>(<span class="ident">Flags::empty</span>().<span class="ident">is_empty</span>());
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">Flags::A</span>.<span class="ident">is_empty</span>());
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">Flags::ABC</span>.<span class="ident">is_empty</span>());
|
||
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>.<span class="ident">is_empty</span>());
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">EmptyFlags::empty</span>().<span class="ident">is_empty</span>());
|
||
<span class="macro">assert!</span>(<span class="ident">EmptyFlags::all</span>().<span class="ident">is_empty</span>());
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_is_all</span>() {
|
||
<span class="macro">assert!</span>(<span class="ident">Flags::all</span>().<span class="ident">is_all</span>());
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">Flags::A</span>.<span class="ident">is_all</span>());
|
||
<span class="macro">assert!</span>(<span class="ident">Flags::ABC</span>.<span class="ident">is_all</span>());
|
||
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b1000</span>) };
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">extra</span>.<span class="ident">is_all</span>());
|
||
<span class="macro">assert!</span>(<span class="op">!</span>(<span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">extra</span>).<span class="ident">is_all</span>());
|
||
<span class="macro">assert!</span>((<span class="ident">Flags::ABC</span> <span class="op">|</span> <span class="ident">extra</span>).<span class="ident">is_all</span>());
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>.<span class="ident">is_all</span>());
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">EmptyFlags::all</span>().<span class="ident">is_all</span>());
|
||
<span class="macro">assert!</span>(<span class="ident">EmptyFlags::empty</span>().<span class="ident">is_all</span>());
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_two_empties_do_not_intersect</span>() {
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">e1</span>.<span class="ident">intersects</span>(<span class="ident">e2</span>));
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>.<span class="ident">intersects</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>));
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_empty_does_not_intersect_with_full</span>() {
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::ABC</span>;
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">e1</span>.<span class="ident">intersects</span>(<span class="ident">e2</span>));
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_disjoint_intersects</span>() {
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span>;
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::B</span>;
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">e1</span>.<span class="ident">intersects</span>(<span class="ident">e2</span>));
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_overlapping_intersects</span>() {
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span>;
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>;
|
||
<span class="macro">assert!</span>(<span class="ident">e1</span>.<span class="ident">intersects</span>(<span class="ident">e2</span>));
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_contains</span>() {
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span>;
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>;
|
||
<span class="macro">assert!</span>(<span class="op">!</span><span class="ident">e1</span>.<span class="ident">contains</span>(<span class="ident">e2</span>));
|
||
<span class="macro">assert!</span>(<span class="ident">e2</span>.<span class="ident">contains</span>(<span class="ident">e1</span>));
|
||
<span class="macro">assert!</span>(<span class="ident">Flags::ABC</span>.<span class="ident">contains</span>(<span class="ident">e2</span>));
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>.<span class="ident">contains</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>));
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">EmptyFlags::empty</span>().<span class="ident">contains</span>(<span class="ident">EmptyFlags::empty</span>()));
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_insert</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span>;
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>;
|
||
<span class="ident">e1</span>.<span class="ident">insert</span>(<span class="ident">e2</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>, <span class="ident">e2</span>);
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e3</span> <span class="op">=</span> <span class="ident">AnotherSetOfFlags::empty</span>();
|
||
<span class="ident">e3</span>.<span class="ident">insert</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e3</span>, <span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_remove</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>;
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span>;
|
||
<span class="ident">e1</span>.<span class="ident">remove</span>(<span class="ident">e2</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>, <span class="ident">Flags::B</span>);
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e3</span> <span class="op">=</span> <span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>;
|
||
<span class="ident">e3</span>.<span class="ident">remove</span>(<span class="ident">AnotherSetOfFlags::ANOTHER_FLAG</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e3</span>, <span class="ident">AnotherSetOfFlags::empty</span>());
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_operators</span>() {
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span>;
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::B</span> <span class="op">|</span> <span class="ident">Flags::C</span>;
|
||
<span class="macro">assert_eq!</span>((<span class="ident">e1</span> <span class="op">|</span> <span class="ident">e2</span>), <span class="ident">Flags::ABC</span>); <span class="comment">// union</span>
|
||
<span class="macro">assert_eq!</span>((<span class="ident">e1</span> <span class="op">&</span> <span class="ident">e2</span>), <span class="ident">Flags::C</span>); <span class="comment">// intersection</span>
|
||
<span class="macro">assert_eq!</span>((<span class="ident">e1</span> <span class="op">-</span> <span class="ident">e2</span>), <span class="ident">Flags::A</span>); <span class="comment">// set difference</span>
|
||
<span class="macro">assert_eq!</span>(<span class="op">!</span><span class="ident">e2</span>, <span class="ident">Flags::A</span>); <span class="comment">// set complement</span>
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span> <span class="op">^</span> <span class="ident">e2</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>); <span class="comment">// toggle</span>
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e3</span> <span class="op">=</span> <span class="ident">e1</span>;
|
||
<span class="ident">e3</span>.<span class="ident">toggle</span>(<span class="ident">e2</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e3</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>);
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">m4</span> <span class="op">=</span> <span class="ident">AnotherSetOfFlags::empty</span>();
|
||
<span class="ident">m4</span>.<span class="ident">toggle</span>(<span class="ident">AnotherSetOfFlags::empty</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="ident">m4</span>, <span class="ident">AnotherSetOfFlags::empty</span>());
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_operators_unchecked</span>() {
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b1000</span>) };
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span> <span class="op">|</span> <span class="ident">extra</span>;
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::B</span> <span class="op">|</span> <span class="ident">Flags::C</span>;
|
||
<span class="macro">assert_eq!</span>((<span class="ident">e1</span> <span class="op">|</span> <span class="ident">e2</span>), (<span class="ident">Flags::ABC</span> <span class="op">|</span> <span class="ident">extra</span>)); <span class="comment">// union</span>
|
||
<span class="macro">assert_eq!</span>((<span class="ident">e1</span> <span class="op">&</span> <span class="ident">e2</span>), <span class="ident">Flags::C</span>); <span class="comment">// intersection</span>
|
||
<span class="macro">assert_eq!</span>((<span class="ident">e1</span> <span class="op">-</span> <span class="ident">e2</span>), (<span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">extra</span>)); <span class="comment">// set difference</span>
|
||
<span class="macro">assert_eq!</span>(<span class="op">!</span><span class="ident">e2</span>, <span class="ident">Flags::A</span>); <span class="comment">// set complement</span>
|
||
<span class="macro">assert_eq!</span>(<span class="op">!</span><span class="ident">e1</span>, <span class="ident">Flags::B</span>); <span class="comment">// set complement</span>
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span> <span class="op">^</span> <span class="ident">e2</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span> <span class="op">|</span> <span class="ident">extra</span>); <span class="comment">// toggle</span>
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e3</span> <span class="op">=</span> <span class="ident">e1</span>;
|
||
<span class="ident">e3</span>.<span class="ident">toggle</span>(<span class="ident">e2</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e3</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span> <span class="op">|</span> <span class="ident">extra</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_set_ops_basic</span>() {
|
||
<span class="kw">let</span> <span class="ident">ab</span> <span class="op">=</span> <span class="ident">Flags::A</span>.<span class="ident">union</span>(<span class="ident">Flags::B</span>);
|
||
<span class="kw">let</span> <span class="ident">ac</span> <span class="op">=</span> <span class="ident">Flags::A</span>.<span class="ident">union</span>(<span class="ident">Flags::C</span>);
|
||
<span class="kw">let</span> <span class="ident">bc</span> <span class="op">=</span> <span class="ident">Flags::B</span>.<span class="ident">union</span>(<span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ab</span>.<span class="ident">bits</span>, <span class="number">0b011</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>.<span class="ident">bits</span>, <span class="number">0b110</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>.<span class="ident">bits</span>, <span class="number">0b101</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ab</span>, <span class="ident">Flags::B</span>.<span class="ident">union</span>(<span class="ident">Flags::A</span>));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>, <span class="ident">Flags::C</span>.<span class="ident">union</span>(<span class="ident">Flags::A</span>));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>, <span class="ident">Flags::C</span>.<span class="ident">union</span>(<span class="ident">Flags::B</span>));
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>, <span class="ident">Flags::B</span> <span class="op">|</span> <span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ab</span>.<span class="ident">union</span>(<span class="ident">bc</span>), <span class="ident">Flags::ABC</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>, <span class="ident">Flags::B</span> <span class="op">|</span> <span class="ident">Flags::C</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>.<span class="ident">union</span>(<span class="ident">bc</span>), <span class="ident">ac</span> <span class="op">|</span> <span class="ident">bc</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>.<span class="ident">union</span>(<span class="ident">bc</span>), <span class="ident">Flags::ABC</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>.<span class="ident">union</span>(<span class="ident">ac</span>), <span class="ident">Flags::ABC</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>.<span class="ident">intersection</span>(<span class="ident">bc</span>), <span class="ident">ac</span> <span class="op">&</span> <span class="ident">bc</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>.<span class="ident">intersection</span>(<span class="ident">bc</span>), <span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>.<span class="ident">intersection</span>(<span class="ident">ac</span>), <span class="ident">Flags::C</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>.<span class="ident">difference</span>(<span class="ident">bc</span>), <span class="ident">ac</span> <span class="op">-</span> <span class="ident">bc</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>.<span class="ident">difference</span>(<span class="ident">ac</span>), <span class="ident">bc</span> <span class="op">-</span> <span class="ident">ac</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>.<span class="ident">difference</span>(<span class="ident">bc</span>), <span class="ident">Flags::A</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>.<span class="ident">difference</span>(<span class="ident">ac</span>), <span class="ident">Flags::B</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>.<span class="ident">complement</span>(), <span class="op">!</span><span class="ident">bc</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>.<span class="ident">complement</span>(), <span class="ident">Flags::A</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">ac</span>.<span class="ident">symmetric_difference</span>(<span class="ident">bc</span>), <span class="ident">Flags::A</span>.<span class="ident">union</span>(<span class="ident">Flags::B</span>));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">bc</span>.<span class="ident">symmetric_difference</span>(<span class="ident">ac</span>), <span class="ident">Flags::A</span>.<span class="ident">union</span>(<span class="ident">Flags::B</span>));
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_set_ops_const</span>() {
|
||
<span class="comment">// These just test that these compile and don't cause use-site panics</span>
|
||
<span class="comment">// (would be possible if we had some sort of UB)</span>
|
||
<span class="kw">const</span> <span class="ident">INTERSECT</span>: <span class="ident">Flags</span> <span class="op">=</span> <span class="ident">Flags::all</span>().<span class="ident">intersection</span>(<span class="ident">Flags::C</span>);
|
||
<span class="kw">const</span> <span class="ident">UNION</span>: <span class="ident">Flags</span> <span class="op">=</span> <span class="ident">Flags::A</span>.<span class="ident">union</span>(<span class="ident">Flags::C</span>);
|
||
<span class="kw">const</span> <span class="ident">DIFFERENCE</span>: <span class="ident">Flags</span> <span class="op">=</span> <span class="ident">Flags::all</span>().<span class="ident">difference</span>(<span class="ident">Flags::A</span>);
|
||
<span class="kw">const</span> <span class="ident">COMPLEMENT</span>: <span class="ident">Flags</span> <span class="op">=</span> <span class="ident">Flags::C</span>.<span class="ident">complement</span>();
|
||
<span class="kw">const</span> <span class="ident">SYM_DIFFERENCE</span>: <span class="ident">Flags</span> <span class="op">=</span> <span class="ident">UNION</span>.<span class="ident">symmetric_difference</span>(<span class="ident">DIFFERENCE</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">INTERSECT</span>, <span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">UNION</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">DIFFERENCE</span>, <span class="ident">Flags::all</span>() <span class="op">-</span> <span class="ident">Flags::A</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">COMPLEMENT</span>, <span class="op">!</span><span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">SYM_DIFFERENCE</span>, (<span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span>) <span class="op">^</span> (<span class="ident">Flags::all</span>() <span class="op">-</span> <span class="ident">Flags::A</span>));
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_set_ops_unchecked</span>() {
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b1000</span>) };
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span>.<span class="ident">union</span>(<span class="ident">Flags::C</span>).<span class="ident">union</span>(<span class="ident">extra</span>);
|
||
<span class="kw">let</span> <span class="ident">e2</span> <span class="op">=</span> <span class="ident">Flags::B</span>.<span class="ident">union</span>(<span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>.<span class="ident">bits</span>, <span class="number">0b1101</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>.<span class="ident">union</span>(<span class="ident">e2</span>), (<span class="ident">Flags::ABC</span> <span class="op">|</span> <span class="ident">extra</span>));
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>.<span class="ident">intersection</span>(<span class="ident">e2</span>), <span class="ident">Flags::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>.<span class="ident">difference</span>(<span class="ident">e2</span>), <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">extra</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e2</span>.<span class="ident">difference</span>(<span class="ident">e1</span>), <span class="ident">Flags::B</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e2</span>.<span class="ident">complement</span>(), <span class="ident">Flags::A</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>.<span class="ident">complement</span>(), <span class="ident">Flags::B</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>.<span class="ident">symmetric_difference</span>(<span class="ident">e2</span>), <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span> <span class="op">|</span> <span class="ident">extra</span>); <span class="comment">// toggle</span>
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_set_ops_exhaustive</span>() {
|
||
<span class="comment">// Define a flag that contains gaps to help exercise edge-cases,</span>
|
||
<span class="comment">// especially around "unknown" flags (e.g. ones outside of `all()`</span>
|
||
<span class="comment">// `from_bits_unchecked`).</span>
|
||
<span class="comment">// - when lhs and rhs both have different sets of unknown flags.</span>
|
||
<span class="comment">// - unknown flags at both ends, and in the middle</span>
|
||
<span class="comment">// - cases with "gaps".</span>
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="kw">struct</span> <span class="ident">Test</span>: <span class="ident">u16</span> {
|
||
<span class="comment">// Intentionally no `A`</span>
|
||
<span class="kw">const</span> <span class="ident">B</span> <span class="op">=</span> <span class="number">0b000000010</span>;
|
||
<span class="comment">// Intentionally no `C`</span>
|
||
<span class="kw">const</span> <span class="ident">D</span> <span class="op">=</span> <span class="number">0b000001000</span>;
|
||
<span class="kw">const</span> <span class="ident">E</span> <span class="op">=</span> <span class="number">0b000010000</span>;
|
||
<span class="kw">const</span> <span class="ident">F</span> <span class="op">=</span> <span class="number">0b000100000</span>;
|
||
<span class="kw">const</span> <span class="ident">G</span> <span class="op">=</span> <span class="number">0b001000000</span>;
|
||
<span class="comment">// Intentionally no `H`</span>
|
||
<span class="kw">const</span> <span class="ident">I</span> <span class="op">=</span> <span class="number">0b100000000</span>;
|
||
}
|
||
}
|
||
<span class="kw">let</span> <span class="ident">iter_test_flags</span> <span class="op">=</span>
|
||
<span class="op">|</span><span class="op">|</span> (<span class="number">0</span>..<span class="op">=</span><span class="number">0b111_1111_1111</span>).<span class="ident">map</span>(<span class="op">|</span><span class="ident">bits</span><span class="op">|</span> <span class="kw">unsafe</span> { <span class="ident">Test::from_bits_unchecked</span>(<span class="ident">bits</span>) });
|
||
|
||
<span class="kw">for</span> <span class="ident">a</span> <span class="kw">in</span> <span class="ident">iter_test_flags</span>() {
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">complement</span>(),
|
||
<span class="ident">Test::from_bits_truncate</span>(<span class="op">!</span><span class="ident">a</span>.<span class="ident">bits</span>),
|
||
<span class="string">"wrong result: !({:?})"</span>,
|
||
<span class="ident">a</span>,
|
||
);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">a</span>.<span class="ident">complement</span>(), <span class="op">!</span><span class="ident">a</span>, <span class="string">"named != op: !({:?})"</span>, <span class="ident">a</span>);
|
||
<span class="kw">for</span> <span class="ident">b</span> <span class="kw">in</span> <span class="ident">iter_test_flags</span>() {
|
||
<span class="comment">// Check that the named operations produce the expected bitwise</span>
|
||
<span class="comment">// values.</span>
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">union</span>(<span class="ident">b</span>).<span class="ident">bits</span>,
|
||
<span class="ident">a</span>.<span class="ident">bits</span> <span class="op">|</span> <span class="ident">b</span>.<span class="ident">bits</span>,
|
||
<span class="string">"wrong result: `{:?}` | `{:?}`"</span>,
|
||
<span class="ident">a</span>,
|
||
<span class="ident">b</span>,
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">intersection</span>(<span class="ident">b</span>).<span class="ident">bits</span>,
|
||
<span class="ident">a</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="ident">b</span>.<span class="ident">bits</span>,
|
||
<span class="string">"wrong result: `{:?}` & `{:?}`"</span>,
|
||
<span class="ident">a</span>,
|
||
<span class="ident">b</span>,
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">symmetric_difference</span>(<span class="ident">b</span>).<span class="ident">bits</span>,
|
||
<span class="ident">a</span>.<span class="ident">bits</span> <span class="op">^</span> <span class="ident">b</span>.<span class="ident">bits</span>,
|
||
<span class="string">"wrong result: `{:?}` ^ `{:?}`"</span>,
|
||
<span class="ident">a</span>,
|
||
<span class="ident">b</span>,
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">difference</span>(<span class="ident">b</span>).<span class="ident">bits</span>,
|
||
<span class="ident">a</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="op">!</span><span class="ident">b</span>.<span class="ident">bits</span>,
|
||
<span class="string">"wrong result: `{:?}` - `{:?}`"</span>,
|
||
<span class="ident">a</span>,
|
||
<span class="ident">b</span>,
|
||
);
|
||
<span class="comment">// Note: Difference is checked as both `a - b` and `b - a`</span>
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">b</span>.<span class="ident">difference</span>(<span class="ident">a</span>).<span class="ident">bits</span>,
|
||
<span class="ident">b</span>.<span class="ident">bits</span> <span class="op">&</span> <span class="op">!</span><span class="ident">a</span>.<span class="ident">bits</span>,
|
||
<span class="string">"wrong result: `{:?}` - `{:?}`"</span>,
|
||
<span class="ident">b</span>,
|
||
<span class="ident">a</span>,
|
||
);
|
||
<span class="comment">// Check that the named set operations are equivalent to the</span>
|
||
<span class="comment">// bitwise equivalents</span>
|
||
<span class="macro">assert_eq!</span>(<span class="ident">a</span>.<span class="ident">union</span>(<span class="ident">b</span>), <span class="ident">a</span> <span class="op">|</span> <span class="ident">b</span>, <span class="string">"named != op: `{:?}` | `{:?}`"</span>, <span class="ident">a</span>, <span class="ident">b</span>,);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">intersection</span>(<span class="ident">b</span>),
|
||
<span class="ident">a</span> <span class="op">&</span> <span class="ident">b</span>,
|
||
<span class="string">"named != op: `{:?}` & `{:?}`"</span>,
|
||
<span class="ident">a</span>,
|
||
<span class="ident">b</span>,
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">symmetric_difference</span>(<span class="ident">b</span>),
|
||
<span class="ident">a</span> <span class="op">^</span> <span class="ident">b</span>,
|
||
<span class="string">"named != op: `{:?}` ^ `{:?}`"</span>,
|
||
<span class="ident">a</span>,
|
||
<span class="ident">b</span>,
|
||
);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">a</span>.<span class="ident">difference</span>(<span class="ident">b</span>), <span class="ident">a</span> <span class="op">-</span> <span class="ident">b</span>, <span class="string">"named != op: `{:?}` - `{:?}`"</span>, <span class="ident">a</span>, <span class="ident">b</span>,);
|
||
<span class="comment">// Note: Difference is checked as both `a - b` and `b - a`</span>
|
||
<span class="macro">assert_eq!</span>(<span class="ident">b</span>.<span class="ident">difference</span>(<span class="ident">a</span>), <span class="ident">b</span> <span class="op">-</span> <span class="ident">a</span>, <span class="string">"named != op: `{:?}` - `{:?}`"</span>, <span class="ident">b</span>, <span class="ident">a</span>,);
|
||
<span class="comment">// Verify that the operations which should be symmetric are</span>
|
||
<span class="comment">// actually symmetric.</span>
|
||
<span class="macro">assert_eq!</span>(<span class="ident">a</span>.<span class="ident">union</span>(<span class="ident">b</span>), <span class="ident">b</span>.<span class="ident">union</span>(<span class="ident">a</span>), <span class="string">"asymmetry: `{:?}` | `{:?}`"</span>, <span class="ident">a</span>, <span class="ident">b</span>,);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">intersection</span>(<span class="ident">b</span>),
|
||
<span class="ident">b</span>.<span class="ident">intersection</span>(<span class="ident">a</span>),
|
||
<span class="string">"asymmetry: `{:?}` & `{:?}`"</span>,
|
||
<span class="ident">a</span>,
|
||
<span class="ident">b</span>,
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">a</span>.<span class="ident">symmetric_difference</span>(<span class="ident">b</span>),
|
||
<span class="ident">b</span>.<span class="ident">symmetric_difference</span>(<span class="ident">a</span>),
|
||
<span class="string">"asymmetry: `{:?}` ^ `{:?}`"</span>,
|
||
<span class="ident">a</span>,
|
||
<span class="ident">b</span>,
|
||
);
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_set</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span>;
|
||
<span class="ident">e1</span>.<span class="ident">set</span>(<span class="ident">Flags::B</span>, <span class="bool-val">true</span>);
|
||
<span class="ident">e1</span>.<span class="ident">set</span>(<span class="ident">Flags::C</span>, <span class="bool-val">false</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">e1</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_assignment_operators</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">m1</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="kw">let</span> <span class="ident">e1</span> <span class="op">=</span> <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::C</span>;
|
||
<span class="comment">// union</span>
|
||
<span class="ident">m1</span> <span class="op">|</span><span class="op">=</span> <span class="ident">Flags::A</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">m1</span>, <span class="ident">Flags::A</span>);
|
||
<span class="comment">// intersection</span>
|
||
<span class="ident">m1</span> <span class="op">&=</span> <span class="ident">e1</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">m1</span>, <span class="ident">Flags::A</span>);
|
||
<span class="comment">// set difference</span>
|
||
<span class="ident">m1</span> <span class="op">-</span><span class="op">=</span> <span class="ident">m1</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">m1</span>, <span class="ident">Flags::empty</span>());
|
||
<span class="comment">// toggle</span>
|
||
<span class="ident">m1</span> <span class="op">^</span><span class="op">=</span> <span class="ident">e1</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">m1</span>, <span class="ident">e1</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_const_fn</span>() {
|
||
<span class="kw">const</span> <span class="ident">_M1</span>: <span class="ident">Flags</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
|
||
<span class="kw">const</span> <span class="ident">M2</span>: <span class="ident">Flags</span> <span class="op">=</span> <span class="ident">Flags::A</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">M2</span>, <span class="ident">Flags::A</span>);
|
||
|
||
<span class="kw">const</span> <span class="ident">M3</span>: <span class="ident">Flags</span> <span class="op">=</span> <span class="ident">Flags::C</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">M3</span>, <span class="ident">Flags::C</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_extend</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">flags</span>;
|
||
|
||
<span class="ident">flags</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="ident">flags</span>.<span class="ident">extend</span>([].<span class="ident">iter</span>().<span class="ident">cloned</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="ident">flags</span>, <span class="ident">Flags::empty</span>());
|
||
|
||
<span class="ident">flags</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="ident">flags</span>.<span class="ident">extend</span>([<span class="ident">Flags::A</span>, <span class="ident">Flags::B</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="ident">flags</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>);
|
||
|
||
<span class="ident">flags</span> <span class="op">=</span> <span class="ident">Flags::A</span>;
|
||
<span class="ident">flags</span>.<span class="ident">extend</span>([<span class="ident">Flags::A</span>, <span class="ident">Flags::B</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="ident">flags</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>);
|
||
|
||
<span class="ident">flags</span> <span class="op">=</span> <span class="ident">Flags::B</span>;
|
||
<span class="ident">flags</span>.<span class="ident">extend</span>([<span class="ident">Flags::A</span>, <span class="ident">Flags::ABC</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>());
|
||
<span class="macro">assert_eq!</span>(<span class="ident">flags</span>, <span class="ident">Flags::ABC</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_from_iterator</span>() {
|
||
<span class="macro">assert_eq!</span>([].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>::<span class="op"><</span><span class="ident">Flags</span><span class="op">></span>(), <span class="ident">Flags::empty</span>());
|
||
<span class="macro">assert_eq!</span>(
|
||
[<span class="ident">Flags::A</span>, <span class="ident">Flags::B</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>::<span class="op"><</span><span class="ident">Flags</span><span class="op">></span>(),
|
||
<span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>
|
||
);
|
||
<span class="macro">assert_eq!</span>(
|
||
[<span class="ident">Flags::A</span>, <span class="ident">Flags::ABC</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>::<span class="op"><</span><span class="ident">Flags</span><span class="op">></span>(),
|
||
<span class="ident">Flags::ABC</span>
|
||
);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_lt</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">a</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">b</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
|
||
<span class="macro">assert!</span>(<span class="op">!</span>(<span class="ident">a</span> <span class="op"><</span> <span class="ident">b</span>) <span class="op">&&</span> <span class="op">!</span>(<span class="ident">b</span> <span class="op"><</span> <span class="ident">a</span>));
|
||
<span class="ident">b</span> <span class="op">=</span> <span class="ident">Flags::B</span>;
|
||
<span class="macro">assert!</span>(<span class="ident">a</span> <span class="op"><</span> <span class="ident">b</span>);
|
||
<span class="ident">a</span> <span class="op">=</span> <span class="ident">Flags::C</span>;
|
||
<span class="macro">assert!</span>(<span class="op">!</span>(<span class="ident">a</span> <span class="op"><</span> <span class="ident">b</span>) <span class="op">&&</span> <span class="ident">b</span> <span class="op"><</span> <span class="ident">a</span>);
|
||
<span class="ident">b</span> <span class="op">=</span> <span class="ident">Flags::C</span> <span class="op">|</span> <span class="ident">Flags::B</span>;
|
||
<span class="macro">assert!</span>(<span class="ident">a</span> <span class="op"><</span> <span class="ident">b</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_ord</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">a</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">b</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">a</span> <span class="op"><</span><span class="op">=</span> <span class="ident">b</span> <span class="op">&&</span> <span class="ident">a</span> <span class="op">></span><span class="op">=</span> <span class="ident">b</span>);
|
||
<span class="ident">a</span> <span class="op">=</span> <span class="ident">Flags::A</span>;
|
||
<span class="macro">assert!</span>(<span class="ident">a</span> <span class="op">></span> <span class="ident">b</span> <span class="op">&&</span> <span class="ident">a</span> <span class="op">></span><span class="op">=</span> <span class="ident">b</span>);
|
||
<span class="macro">assert!</span>(<span class="ident">b</span> <span class="op"><</span> <span class="ident">a</span> <span class="op">&&</span> <span class="ident">b</span> <span class="op"><</span><span class="op">=</span> <span class="ident">a</span>);
|
||
<span class="ident">b</span> <span class="op">=</span> <span class="ident">Flags::B</span>;
|
||
<span class="macro">assert!</span>(<span class="ident">b</span> <span class="op">></span> <span class="ident">a</span> <span class="op">&&</span> <span class="ident">b</span> <span class="op">></span><span class="op">=</span> <span class="ident">a</span>);
|
||
<span class="macro">assert!</span>(<span class="ident">a</span> <span class="op"><</span> <span class="ident">b</span> <span class="op">&&</span> <span class="ident">a</span> <span class="op"><</span><span class="op">=</span> <span class="ident">b</span>);
|
||
}
|
||
|
||
<span class="kw">fn</span> <span class="ident">hash</span><span class="op"><</span><span class="ident">T</span>: <span class="ident">Hash</span><span class="op">></span>(<span class="ident">t</span>: <span class="kw-2">&</span><span class="ident">T</span>) -> <span class="ident">u64</span> {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">DefaultHasher::new</span>();
|
||
<span class="ident">t</span>.<span class="ident">hash</span>(<span class="kw-2">&mut</span> <span class="ident">s</span>);
|
||
<span class="ident">s</span>.<span class="ident">finish</span>()
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_hash</span>() {
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">x</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">y</span> <span class="op">=</span> <span class="ident">Flags::empty</span>();
|
||
<span class="macro">assert_eq!</span>(<span class="ident">hash</span>(<span class="kw-2">&</span><span class="ident">x</span>), <span class="ident">hash</span>(<span class="kw-2">&</span><span class="ident">y</span>));
|
||
<span class="ident">x</span> <span class="op">=</span> <span class="ident">Flags::all</span>();
|
||
<span class="ident">y</span> <span class="op">=</span> <span class="ident">Flags::ABC</span>;
|
||
<span class="macro">assert_eq!</span>(<span class="ident">hash</span>(<span class="kw-2">&</span><span class="ident">x</span>), <span class="ident">hash</span>(<span class="kw-2">&</span><span class="ident">y</span>));
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_default</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::empty</span>(), <span class="ident">Flags::default</span>());
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_debug</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">Flags::B</span>), <span class="string">"A | B"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags::empty</span>()), <span class="string">"(empty)"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags::ABC</span>), <span class="string">"A | B | C | ABC"</span>);
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0xb8</span>) };
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">extra</span>), <span class="string">"0xb8"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags::A</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"A | 0xb8"</span>);
|
||
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags::ABC</span> <span class="op">|</span> <span class="ident">extra</span>),
|
||
<span class="string">"A | B | C | ABC | 0xb8"</span>
|
||
);
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">EmptyFlags::empty</span>()), <span class="string">"(empty)"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_binary</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:b}"</span>, <span class="ident">Flags::ABC</span>), <span class="string">"111"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:#b}"</span>, <span class="ident">Flags::ABC</span>), <span class="string">"0b111"</span>);
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">Flags::from_bits_unchecked</span>(<span class="number">0b1010000</span>) };
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:b}"</span>, <span class="ident">Flags::ABC</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"1010111"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:#b}"</span>, <span class="ident">Flags::ABC</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"0b1010111"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_octal</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:o}"</span>, <span class="ident">LongFlags::LONG_A</span>), <span class="string">"177777"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:#o}"</span>, <span class="ident">LongFlags::LONG_A</span>), <span class="string">"0o177777"</span>);
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">LongFlags::from_bits_unchecked</span>(<span class="number">0o5000000</span>) };
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:o}"</span>, <span class="ident">LongFlags::LONG_A</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"5177777"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:#o}"</span>, <span class="ident">LongFlags::LONG_A</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"0o5177777"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_lowerhex</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:x}"</span>, <span class="ident">LongFlags::LONG_A</span>), <span class="string">"ffff"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:#x}"</span>, <span class="ident">LongFlags::LONG_A</span>), <span class="string">"0xffff"</span>);
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">LongFlags::from_bits_unchecked</span>(<span class="number">0xe00000</span>) };
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:x}"</span>, <span class="ident">LongFlags::LONG_A</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"e0ffff"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:#x}"</span>, <span class="ident">LongFlags::LONG_A</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"0xe0ffff"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_upperhex</span>() {
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:X}"</span>, <span class="ident">LongFlags::LONG_A</span>), <span class="string">"FFFF"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:#X}"</span>, <span class="ident">LongFlags::LONG_A</span>), <span class="string">"0xFFFF"</span>);
|
||
<span class="kw">let</span> <span class="ident">extra</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="ident">LongFlags::from_bits_unchecked</span>(<span class="number">0xe00000</span>) };
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:X}"</span>, <span class="ident">LongFlags::LONG_A</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"E0FFFF"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:#X}"</span>, <span class="ident">LongFlags::LONG_A</span> <span class="op">|</span> <span class="ident">extra</span>), <span class="string">"0xE0FFFF"</span>);
|
||
}
|
||
|
||
<span class="kw">mod</span> <span class="ident">submodule</span> {
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">PublicFlags</span>: <span class="ident">i8</span> {
|
||
<span class="kw">const</span> <span class="ident">X</span> <span class="op">=</span> <span class="number">0</span>;
|
||
}
|
||
|
||
<span class="kw">struct</span> <span class="ident">PrivateFlags</span>: <span class="ident">i8</span> {
|
||
<span class="kw">const</span> <span class="ident">Y</span> <span class="op">=</span> <span class="number">0</span>;
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_private</span>() {
|
||
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">PrivateFlags::Y</span>;
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_public</span>() {
|
||
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">submodule::PublicFlags::X</span>;
|
||
}
|
||
|
||
<span class="kw">mod</span> <span class="ident">t1</span> {
|
||
<span class="kw">mod</span> <span class="ident">foo</span> {
|
||
<span class="kw">pub</span> <span class="kw">type</span> <span class="ident">Bar</span> <span class="op">=</span> <span class="ident">i32</span>;
|
||
}
|
||
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="doccomment">/// baz</span>
|
||
<span class="kw">struct</span> <span class="ident">Flags</span>: <span class="ident">foo::Bar</span> {
|
||
<span class="kw">const</span> <span class="ident">A</span> <span class="op">=</span> <span class="number">0b00000001</span>;
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">foo</span>)]</span>
|
||
<span class="kw">const</span> <span class="ident">B</span> <span class="op">=</span> <span class="number">0b00000010</span>;
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">foo</span>)]</span>
|
||
<span class="kw">const</span> <span class="ident">C</span> <span class="op">=</span> <span class="number">0b00000010</span>;
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_in_function</span>() {
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="kw">struct</span> <span class="ident">Flags</span>: <span class="ident">u8</span> {
|
||
<span class="kw">const</span> <span class="ident">A</span> <span class="op">=</span> <span class="number">1</span>;
|
||
<span class="attribute">#[<span class="ident">cfg</span>(<span class="ident">any</span>())]</span> <span class="comment">// false</span>
|
||
<span class="kw">const</span> <span class="ident">B</span> <span class="op">=</span> <span class="number">2</span>;
|
||
}
|
||
}
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags::all</span>(), <span class="ident">Flags::A</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags::A</span>), <span class="string">"A"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_deprecated</span>() {
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">TestFlags</span>: <span class="ident">u32</span> {
|
||
<span class="attribute">#[<span class="ident">deprecated</span>(<span class="ident">note</span> <span class="op">=</span> <span class="string">"Use something else."</span>)]</span>
|
||
<span class="kw">const</span> <span class="ident">ONE</span> <span class="op">=</span> <span class="number">1</span>;
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_pub_crate</span>() {
|
||
<span class="kw">mod</span> <span class="ident">module</span> {
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="kw">pub</span> (<span class="kw">crate</span>) <span class="kw">struct</span> <span class="ident">Test</span>: <span class="ident">u8</span> {
|
||
<span class="kw">const</span> <span class="ident">FOO</span> <span class="op">=</span> <span class="number">1</span>;
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">module::Test::FOO</span>.<span class="ident">bits</span>(), <span class="number">1</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_pub_in_module</span>() {
|
||
<span class="kw">mod</span> <span class="ident">module</span> {
|
||
<span class="kw">mod</span> <span class="ident">submodule</span> {
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="comment">// `pub (in super)` means only the module `module` will</span>
|
||
<span class="comment">// be able to access this.</span>
|
||
<span class="kw">pub</span> (<span class="kw">in</span> <span class="kw">super</span>) <span class="kw">struct</span> <span class="ident">Test</span>: <span class="ident">u8</span> {
|
||
<span class="kw">const</span> <span class="ident">FOO</span> <span class="op">=</span> <span class="number">1</span>;
|
||
}
|
||
}
|
||
}
|
||
|
||
<span class="kw">mod</span> <span class="ident">test</span> {
|
||
<span class="comment">// Note: due to `pub (in super)`,</span>
|
||
<span class="comment">// this cannot be accessed directly by the testing code.</span>
|
||
<span class="kw">pub</span>(<span class="kw">super</span>) <span class="kw">fn</span> <span class="ident">value</span>() -> <span class="ident">u8</span> {
|
||
<span class="ident"><span class="kw">super</span>::submodule::Test::FOO</span>.<span class="ident">bits</span>()
|
||
}
|
||
}
|
||
|
||
<span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">value</span>() -> <span class="ident">u8</span> {
|
||
<span class="ident">test::value</span>()
|
||
}
|
||
}
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">module::value</span>(), <span class="number">1</span>)
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_zero_value_flags</span>() {
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="kw">struct</span> <span class="ident">Flags</span>: <span class="ident">u32</span> {
|
||
<span class="kw">const</span> <span class="ident">NONE</span> <span class="op">=</span> <span class="number">0b0</span>;
|
||
<span class="kw">const</span> <span class="ident">SOME</span> <span class="op">=</span> <span class="number">0b1</span>;
|
||
}
|
||
}
|
||
|
||
<span class="macro">assert!</span>(<span class="ident">Flags::empty</span>().<span class="ident">contains</span>(<span class="ident">Flags::NONE</span>));
|
||
<span class="macro">assert!</span>(<span class="ident">Flags::SOME</span>.<span class="ident">contains</span>(<span class="ident">Flags::NONE</span>));
|
||
<span class="macro">assert!</span>(<span class="ident">Flags::NONE</span>.<span class="ident">is_empty</span>());
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags::empty</span>()), <span class="string">"NONE"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags::SOME</span>), <span class="string">"SOME"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_empty_bitflags</span>() {
|
||
<span class="macro">bitflags!</span> {}
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_u128_bitflags</span>() {
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="kw">struct</span> <span class="ident">Flags128</span>: <span class="ident">u128</span> {
|
||
<span class="kw">const</span> <span class="ident">A</span> <span class="op">=</span> <span class="number">0x0000_0000_0000_0000_0000_0000_0000_0001</span>;
|
||
<span class="kw">const</span> <span class="ident">B</span> <span class="op">=</span> <span class="number">0x0000_0000_0000_1000_0000_0000_0000_0000</span>;
|
||
<span class="kw">const</span> <span class="ident">C</span> <span class="op">=</span> <span class="number">0x8000_0000_0000_0000_0000_0000_0000_0000</span>;
|
||
<span class="kw">const</span> <span class="ident">ABC</span> <span class="op">=</span> <span class="ident"><span class="self">Self</span>::A</span>.<span class="ident">bits</span> <span class="op">|</span> <span class="ident"><span class="self">Self</span>::B</span>.<span class="ident">bits</span> <span class="op">|</span> <span class="ident"><span class="self">Self</span>::C</span>.<span class="ident">bits</span>;
|
||
}
|
||
}
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags128::ABC</span>, <span class="ident">Flags128::A</span> <span class="op">|</span> <span class="ident">Flags128::B</span> <span class="op">|</span> <span class="ident">Flags128::C</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags128::A</span>.<span class="ident">bits</span>, <span class="number">0x0000_0000_0000_0000_0000_0000_0000_0001</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags128::B</span>.<span class="ident">bits</span>, <span class="number">0x0000_0000_0000_1000_0000_0000_0000_0000</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="ident">Flags128::C</span>.<span class="ident">bits</span>, <span class="number">0x8000_0000_0000_0000_0000_0000_0000_0000</span>);
|
||
<span class="macro">assert_eq!</span>(
|
||
<span class="ident">Flags128::ABC</span>.<span class="ident">bits</span>,
|
||
<span class="number">0x8000_0000_0000_1000_0000_0000_0000_0001</span>
|
||
);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags128::A</span>), <span class="string">"A"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags128::B</span>), <span class="string">"B"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags128::C</span>), <span class="string">"C"</span>);
|
||
<span class="macro">assert_eq!</span>(<span class="macro">format!</span>(<span class="string">"{:?}"</span>, <span class="ident">Flags128::ABC</span>), <span class="string">"A | B | C | ABC"</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_serde_bitflags_serialize</span>() {
|
||
<span class="kw">let</span> <span class="ident">flags</span> <span class="op">=</span> <span class="ident">SerdeFlags::A</span> <span class="op">|</span> <span class="ident">SerdeFlags::B</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">serialized</span> <span class="op">=</span> <span class="ident">serde_json::to_string</span>(<span class="kw-2">&</span><span class="ident">flags</span>).<span class="ident">unwrap</span>();
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">serialized</span>, <span class="string">r#"{"bits":3}"#</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_serde_bitflags_deserialize</span>() {
|
||
<span class="kw">let</span> <span class="ident">deserialized</span>: <span class="ident">SerdeFlags</span> <span class="op">=</span> <span class="ident">serde_json::from_str</span>(<span class="string">r#"{"bits":12}"#</span>).<span class="ident">unwrap</span>();
|
||
|
||
<span class="kw">let</span> <span class="ident">expected</span> <span class="op">=</span> <span class="ident">SerdeFlags::C</span> <span class="op">|</span> <span class="ident">SerdeFlags::D</span>;
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">deserialized</span>.<span class="ident">bits</span>, <span class="ident">expected</span>.<span class="ident">bits</span>);
|
||
}
|
||
|
||
<span class="attribute">#[<span class="ident">test</span>]</span>
|
||
<span class="kw">fn</span> <span class="ident">test_serde_bitflags_roundtrip</span>() {
|
||
<span class="kw">let</span> <span class="ident">flags</span> <span class="op">=</span> <span class="ident">SerdeFlags::A</span> <span class="op">|</span> <span class="ident">SerdeFlags::B</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">deserialized</span>: <span class="ident">SerdeFlags</span> <span class="op">=</span> <span class="ident">serde_json::from_str</span>(<span class="kw-2">&</span><span class="ident">serde_json::to_string</span>(<span class="kw-2">&</span><span class="ident">flags</span>).<span class="ident">unwrap</span>()).<span class="ident">unwrap</span>();
|
||
|
||
<span class="macro">assert_eq!</span>(<span class="ident">deserialized</span>.<span class="ident">bits</span>, <span class="ident">flags</span>.<span class="ident">bits</span>);
|
||
}
|
||
|
||
<span class="macro">bitflags!</span> {
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">serde::Serialize</span>, <span class="ident">serde::Deserialize</span>)]</span>
|
||
<span class="kw">struct</span> <span class="ident">SerdeFlags</span>: <span class="ident">u32</span> {
|
||
<span class="kw">const</span> <span class="ident">A</span> <span class="op">=</span> <span class="number">1</span>;
|
||
<span class="kw">const</span> <span class="ident">B</span> <span class="op">=</span> <span class="number">2</span>;
|
||
<span class="kw">const</span> <span class="ident">C</span> <span class="op">=</span> <span class="number">4</span>;
|
||
<span class="kw">const</span> <span class="ident">D</span> <span class="op">=</span> <span class="number">8</span>;
|
||
}
|
||
}
|
||
}
|
||
</code></pre></div>
|
||
</section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="bitflags" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.64.0 (a55dd71d5 2022-09-19)" ></div></body></html> |