/usr/share/doc/libghc-cabal-doc/html/src/Distribution-Package.html is in libghc-cabal-doc 1.20.0.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://code.haskell.org/~malcolm/hscolour/ -->
<title>Distribution/Package.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-2"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-3"></a><span class='hs-comment'>-- |</span>
<a name="line-4"></a><span class='hs-comment'>-- Module : Distribution.Package</span>
<a name="line-5"></a><span class='hs-comment'>-- Copyright : Isaac Jones 2003-2004</span>
<a name="line-6"></a><span class='hs-comment'>-- License : BSD3</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Maintainer : cabal-devel@haskell.org</span>
<a name="line-9"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- Defines a package identifier along with a parser and pretty printer for it.</span>
<a name="line-12"></a><span class='hs-comment'>-- 'PackageIdentifier's consist of a name and an exact version. It also defines</span>
<a name="line-13"></a><span class='hs-comment'>-- a 'Dependency' data type. A dependency is a package name and a version</span>
<a name="line-14"></a><span class='hs-comment'>-- range, like @\"foo >= 1.2 && < 2\"@.</span>
<a name="line-15"></a>
<a name="line-16"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Package</span> <span class='hs-layout'>(</span>
<a name="line-17"></a> <span class='hs-comment'>-- * Package ids</span>
<a name="line-18"></a> <span class='hs-conid'>PackageName</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-19"></a> <span class='hs-conid'>PackageIdentifier</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-20"></a> <span class='hs-conid'>PackageId</span><span class='hs-layout'>,</span>
<a name="line-21"></a>
<a name="line-22"></a> <span class='hs-comment'>-- * Installed package identifiers</span>
<a name="line-23"></a> <span class='hs-conid'>InstalledPackageId</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-24"></a>
<a name="line-25"></a> <span class='hs-comment'>-- * Package source dependencies</span>
<a name="line-26"></a> <span class='hs-conid'>Dependency</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>thisPackageVersion</span><span class='hs-layout'>,</span>
<a name="line-28"></a> <span class='hs-varid'>notThisPackageVersion</span><span class='hs-layout'>,</span>
<a name="line-29"></a> <span class='hs-varid'>simplifyDependency</span><span class='hs-layout'>,</span>
<a name="line-30"></a>
<a name="line-31"></a> <span class='hs-comment'>-- * Package classes</span>
<a name="line-32"></a> <span class='hs-conid'>Package</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>packageName</span><span class='hs-layout'>,</span> <span class='hs-varid'>packageVersion</span><span class='hs-layout'>,</span>
<a name="line-33"></a> <span class='hs-conid'>PackageFixedDeps</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-34"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-35"></a>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Version</span>
<a name="line-37"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>Version</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>VersionRange</span><span class='hs-layout'>,</span> <span class='hs-varid'>anyVersion</span><span class='hs-layout'>,</span> <span class='hs-varid'>thisVersion</span>
<a name="line-38"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>notThisVersion</span><span class='hs-layout'>,</span> <span class='hs-varid'>simplifyVersionRange</span> <span class='hs-layout'>)</span>
<a name="line-39"></a>
<a name="line-40"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Text</span> <span class='hs-layout'>(</span><span class='hs-conid'>Text</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-41"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Compat</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadP</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Parse</span>
<a name="line-42"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Distribution</span><span class='hs-varop'>.</span><span class='hs-conid'>Compat</span><span class='hs-varop'>.</span><span class='hs-conid'>ReadP</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'><++</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-43"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>PrettyPrint</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Disp</span>
<a name="line-44"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Text</span><span class='hs-varop'>.</span><span class='hs-conid'>PrettyPrint</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varop'><></span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-layout'>(</span><span class='hs-varop'><+></span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-varid'>text</span><span class='hs-layout'>)</span>
<a name="line-45"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>DeepSeq</span> <span class='hs-layout'>(</span><span class='hs-conid'>NFData</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-46"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Char</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>Char</span> <span class='hs-layout'>(</span> <span class='hs-varid'>isDigit</span><span class='hs-layout'>,</span> <span class='hs-varid'>isAlphaNum</span> <span class='hs-layout'>)</span>
<a name="line-47"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>List</span> <span class='hs-layout'>(</span> <span class='hs-varid'>intercalate</span> <span class='hs-layout'>)</span>
<a name="line-48"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Data</span> <span class='hs-layout'>)</span>
<a name="line-49"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span> <span class='hs-layout'>(</span> <span class='hs-conid'>Typeable</span> <span class='hs-layout'>)</span>
<a name="line-50"></a>
<a name="line-51"></a><a name="PackageName"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>PackageName</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PackageName</span> <span class='hs-conid'>String</span>
<a name="line-52"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>,</span> <span class='hs-conid'>Typeable</span><span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-layout'>)</span>
<a name="line-53"></a>
<a name="line-54"></a><a name="instance%20Text%20PackageName"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Text</span> <span class='hs-conid'>PackageName</span> <span class='hs-keyword'>where</span>
<a name="line-55"></a> <span class='hs-varid'>disp</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageName</span> <span class='hs-varid'>n</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Disp</span><span class='hs-varop'>.</span><span class='hs-varid'>text</span> <span class='hs-varid'>n</span>
<a name="line-56"></a> <span class='hs-varid'>parse</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-57"></a> <span class='hs-varid'>ns</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Parse</span><span class='hs-varop'>.</span><span class='hs-varid'>sepBy1</span> <span class='hs-varid'>component</span> <span class='hs-layout'>(</span><span class='hs-conid'>Parse</span><span class='hs-varop'>.</span><span class='hs-varid'>char</span> <span class='hs-chr'>'-'</span><span class='hs-layout'>)</span>
<a name="line-58"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageName</span> <span class='hs-layout'>(</span><span class='hs-varid'>intercalate</span> <span class='hs-str'>"-"</span> <span class='hs-varid'>ns</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-59"></a> <span class='hs-keyword'>where</span>
<a name="line-60"></a> <span class='hs-varid'>component</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-61"></a> <span class='hs-varid'>cs</span> <span class='hs-keyglyph'><-</span> <span class='hs-conid'>Parse</span><span class='hs-varop'>.</span><span class='hs-varid'>munch1</span> <span class='hs-conid'>Char</span><span class='hs-varop'>.</span><span class='hs-varid'>isAlphaNum</span>
<a name="line-62"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>all</span> <span class='hs-conid'>Char</span><span class='hs-varop'>.</span><span class='hs-varid'>isDigit</span> <span class='hs-varid'>cs</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>Parse</span><span class='hs-varop'>.</span><span class='hs-varid'>pfail</span> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-varid'>cs</span>
<a name="line-63"></a> <span class='hs-comment'>-- each component must contain an alphabetic character, to avoid</span>
<a name="line-64"></a> <span class='hs-comment'>-- ambiguity in identifiers like foo-1 (the 1 is the version number).</span>
<a name="line-65"></a>
<a name="line-66"></a><a name="instance%20NFData%20PackageName"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>NFData</span> <span class='hs-conid'>PackageName</span> <span class='hs-keyword'>where</span>
<a name="line-67"></a> <span class='hs-varid'>rnf</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageName</span> <span class='hs-varid'>pkg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>pkg</span>
<a name="line-68"></a>
<a name="line-69"></a><a name="PackageId"></a><span class='hs-comment'>-- | Type alias so we can use the shorter name PackageId.</span>
<a name="line-70"></a><a name="PackageId"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>PackageId</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PackageIdentifier</span>
<a name="line-71"></a>
<a name="line-72"></a><a name="PackageIdentifier"></a><span class='hs-comment'>-- | The name and version of a package.</span>
<a name="line-73"></a><a name="PackageIdentifier"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PackageIdentifier</span>
<a name="line-74"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PackageIdentifier</span> <span class='hs-layout'>{</span>
<a name="line-75"></a> <span class='hs-varid'>pkgName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageName</span><span class='hs-layout'>,</span> <span class='hs-comment'>-- ^The name of this package, eg. foo</span>
<a name="line-76"></a> <span class='hs-varid'>pkgVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Version</span> <span class='hs-comment'>-- ^the version of this package, eg 1.2</span>
<a name="line-77"></a> <span class='hs-layout'>}</span>
<a name="line-78"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Ord</span><span class='hs-layout'>,</span> <span class='hs-conid'>Typeable</span><span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-layout'>)</span>
<a name="line-79"></a>
<a name="line-80"></a><a name="instance%20Text%20PackageIdentifier"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Text</span> <span class='hs-conid'>PackageIdentifier</span> <span class='hs-keyword'>where</span>
<a name="line-81"></a> <span class='hs-varid'>disp</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIdentifier</span> <span class='hs-varid'>n</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>case</span> <span class='hs-varid'>v</span> <span class='hs-keyword'>of</span>
<a name="line-82"></a> <span class='hs-conid'>Version</span> <span class='hs-conid'>[]</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>disp</span> <span class='hs-varid'>n</span> <span class='hs-comment'>-- if no version, don't show version.</span>
<a name="line-83"></a> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>disp</span> <span class='hs-varid'>n</span> <span class='hs-varop'><></span> <span class='hs-conid'>Disp</span><span class='hs-varop'>.</span><span class='hs-varid'>char</span> <span class='hs-chr'>'-'</span> <span class='hs-varop'><></span> <span class='hs-varid'>disp</span> <span class='hs-varid'>v</span>
<a name="line-84"></a>
<a name="line-85"></a> <span class='hs-varid'>parse</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-86"></a> <span class='hs-varid'>n</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>parse</span>
<a name="line-87"></a> <span class='hs-varid'>v</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-conid'>Parse</span><span class='hs-varop'>.</span><span class='hs-varid'>char</span> <span class='hs-chr'>'-'</span> <span class='hs-varop'>>></span> <span class='hs-varid'>parse</span><span class='hs-layout'>)</span> <span class='hs-varop'><++</span> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Version</span> <span class='hs-conid'>[]</span> <span class='hs-conid'>[]</span><span class='hs-layout'>)</span>
<a name="line-88"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIdentifier</span> <span class='hs-varid'>n</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-89"></a>
<a name="line-90"></a><a name="instance%20NFData%20PackageIdentifier"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>NFData</span> <span class='hs-conid'>PackageIdentifier</span> <span class='hs-keyword'>where</span>
<a name="line-91"></a> <span class='hs-varid'>rnf</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIdentifier</span> <span class='hs-varid'>name</span> <span class='hs-varid'>version</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>name</span> <span class='hs-varop'>`seq`</span> <span class='hs-varid'>rnf</span> <span class='hs-varid'>version</span>
<a name="line-92"></a>
<a name="line-93"></a><span class='hs-comment'>-- ------------------------------------------------------------</span>
<a name="line-94"></a><span class='hs-comment'>-- * Installed Package Ids</span>
<a name="line-95"></a><span class='hs-comment'>-- ------------------------------------------------------------</span>
<a name="line-96"></a>
<a name="line-97"></a><a name="InstalledPackageId"></a><span class='hs-comment'>-- | An InstalledPackageId uniquely identifies an instance of an installed</span>
<a name="line-98"></a><a name="InstalledPackageId"></a><span class='hs-comment'>-- package. There can be at most one package with a given 'InstalledPackageId'</span>
<a name="line-99"></a><a name="InstalledPackageId"></a><span class='hs-comment'>-- in a package database, or overlay of databases.</span>
<a name="line-100"></a><a name="InstalledPackageId"></a><span class='hs-comment'>--</span>
<a name="line-101"></a><a name="InstalledPackageId"></a><span class='hs-keyword'>newtype</span> <span class='hs-conid'>InstalledPackageId</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>InstalledPackageId</span> <span class='hs-conid'>String</span>
<a name="line-102"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span><span class='hs-conid'>Show</span><span class='hs-layout'>,</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span><span class='hs-conid'>Ord</span><span class='hs-layout'>,</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>,</span><span class='hs-conid'>Data</span><span class='hs-layout'>)</span>
<a name="line-103"></a>
<a name="line-104"></a><a name="instance%20Text%20InstalledPackageId"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Text</span> <span class='hs-conid'>InstalledPackageId</span> <span class='hs-keyword'>where</span>
<a name="line-105"></a> <span class='hs-varid'>disp</span> <span class='hs-layout'>(</span><span class='hs-conid'>InstalledPackageId</span> <span class='hs-varid'>str</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>text</span> <span class='hs-varid'>str</span>
<a name="line-106"></a>
<a name="line-107"></a> <span class='hs-varid'>parse</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>InstalledPackageId</span> <span class='hs-varop'>`fmap`</span> <span class='hs-conid'>Parse</span><span class='hs-varop'>.</span><span class='hs-varid'>munch1</span> <span class='hs-varid'>abi_char</span>
<a name="line-108"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>abi_char</span> <span class='hs-varid'>c</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Char</span><span class='hs-varop'>.</span><span class='hs-varid'>isAlphaNum</span> <span class='hs-varid'>c</span> <span class='hs-varop'>||</span> <span class='hs-varid'>c</span> <span class='hs-varop'>`elem`</span> <span class='hs-str'>":-_."</span>
<a name="line-109"></a>
<a name="line-110"></a><span class='hs-comment'>-- ------------------------------------------------------------</span>
<a name="line-111"></a><span class='hs-comment'>-- * Package source dependencies</span>
<a name="line-112"></a><span class='hs-comment'>-- ------------------------------------------------------------</span>
<a name="line-113"></a>
<a name="line-114"></a><a name="Dependency"></a><span class='hs-comment'>-- | Describes a dependency on a source package (API)</span>
<a name="line-115"></a><a name="Dependency"></a><span class='hs-comment'>--</span>
<a name="line-116"></a><a name="Dependency"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Dependency</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Dependency</span> <span class='hs-conid'>PackageName</span> <span class='hs-conid'>VersionRange</span>
<a name="line-117"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Read</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Typeable</span><span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-layout'>)</span>
<a name="line-118"></a>
<a name="line-119"></a><a name="instance%20Text%20Dependency"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Text</span> <span class='hs-conid'>Dependency</span> <span class='hs-keyword'>where</span>
<a name="line-120"></a> <span class='hs-varid'>disp</span> <span class='hs-layout'>(</span><span class='hs-conid'>Dependency</span> <span class='hs-varid'>name</span> <span class='hs-varid'>ver</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-121"></a> <span class='hs-varid'>disp</span> <span class='hs-varid'>name</span> <span class='hs-varop'><+></span> <span class='hs-varid'>disp</span> <span class='hs-varid'>ver</span>
<a name="line-122"></a>
<a name="line-123"></a> <span class='hs-varid'>parse</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>name</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>parse</span>
<a name="line-124"></a> <span class='hs-conid'>Parse</span><span class='hs-varop'>.</span><span class='hs-varid'>skipSpaces</span>
<a name="line-125"></a> <span class='hs-varid'>ver</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>parse</span> <span class='hs-varop'><++</span> <span class='hs-varid'>return</span> <span class='hs-varid'>anyVersion</span>
<a name="line-126"></a> <span class='hs-conid'>Parse</span><span class='hs-varop'>.</span><span class='hs-varid'>skipSpaces</span>
<a name="line-127"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-conid'>Dependency</span> <span class='hs-varid'>name</span> <span class='hs-varid'>ver</span><span class='hs-layout'>)</span>
<a name="line-128"></a>
<a name="line-129"></a><a name="thisPackageVersion"></a><span class='hs-definition'>thisPackageVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIdentifier</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Dependency</span>
<a name="line-130"></a><span class='hs-definition'>thisPackageVersion</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIdentifier</span> <span class='hs-varid'>n</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-131"></a> <span class='hs-conid'>Dependency</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-varid'>thisVersion</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-132"></a>
<a name="line-133"></a><a name="notThisPackageVersion"></a><span class='hs-definition'>notThisPackageVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>PackageIdentifier</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Dependency</span>
<a name="line-134"></a><span class='hs-definition'>notThisPackageVersion</span> <span class='hs-layout'>(</span><span class='hs-conid'>PackageIdentifier</span> <span class='hs-varid'>n</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-135"></a> <span class='hs-conid'>Dependency</span> <span class='hs-varid'>n</span> <span class='hs-layout'>(</span><span class='hs-varid'>notThisVersion</span> <span class='hs-varid'>v</span><span class='hs-layout'>)</span>
<a name="line-136"></a>
<a name="line-137"></a><a name="simplifyDependency"></a><span class='hs-comment'>-- | Simplify the 'VersionRange' expression in a 'Dependency'.</span>
<a name="line-138"></a><span class='hs-comment'>-- See 'simplifyVersionRange'.</span>
<a name="line-139"></a><span class='hs-comment'>--</span>
<a name="line-140"></a><span class='hs-definition'>simplifyDependency</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Dependency</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Dependency</span>
<a name="line-141"></a><span class='hs-definition'>simplifyDependency</span> <span class='hs-layout'>(</span><span class='hs-conid'>Dependency</span> <span class='hs-varid'>name</span> <span class='hs-varid'>range</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-142"></a> <span class='hs-conid'>Dependency</span> <span class='hs-varid'>name</span> <span class='hs-layout'>(</span><span class='hs-varid'>simplifyVersionRange</span> <span class='hs-varid'>range</span><span class='hs-layout'>)</span>
<a name="line-143"></a>
<a name="line-144"></a><span class='hs-comment'>-- | Class of things that have a 'PackageIdentifier'</span>
<a name="line-145"></a><span class='hs-comment'>--</span>
<a name="line-146"></a><span class='hs-comment'>-- Types in this class are all notions of a package. This allows us to have</span>
<a name="line-147"></a><span class='hs-comment'>-- different types for the different phases that packages go though, from</span>
<a name="line-148"></a><span class='hs-comment'>-- simple name\/id, package description, configured or installed packages.</span>
<a name="line-149"></a><span class='hs-comment'>--</span>
<a name="line-150"></a><span class='hs-comment'>-- Not all kinds of packages can be uniquely identified by a</span>
<a name="line-151"></a><span class='hs-comment'>-- 'PackageIdentifier'. In particular, installed packages cannot, there may be</span>
<a name="line-152"></a><span class='hs-comment'>-- many installed instances of the same source package.</span>
<a name="line-153"></a><span class='hs-comment'>--</span>
<a name="line-154"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>Package</span> <span class='hs-varid'>pkg</span> <span class='hs-keyword'>where</span>
<a name="line-155"></a> <span class='hs-varid'>packageId</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageIdentifier</span>
<a name="line-156"></a>
<a name="line-157"></a><a name="packageName"></a><span class='hs-definition'>packageName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Package</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PackageName</span>
<a name="line-158"></a><span class='hs-definition'>packageName</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pkgName</span> <span class='hs-varop'>.</span> <span class='hs-varid'>packageId</span>
<a name="line-159"></a>
<a name="line-160"></a><a name="packageVersion"></a><span class='hs-definition'>packageVersion</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Package</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Version</span>
<a name="line-161"></a><span class='hs-definition'>packageVersion</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pkgVersion</span> <span class='hs-varop'>.</span> <span class='hs-varid'>packageId</span>
<a name="line-162"></a>
<a name="line-163"></a><a name="instance%20Package%20PackageIdentifier"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Package</span> <span class='hs-conid'>PackageIdentifier</span> <span class='hs-keyword'>where</span>
<a name="line-164"></a> <span class='hs-varid'>packageId</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-165"></a>
<a name="line-166"></a><a name="PackageFixedDeps"></a><span class='hs-comment'>-- | Subclass of packages that have specific versioned dependencies.</span>
<a name="line-167"></a><a name="PackageFixedDeps"></a><span class='hs-comment'>--</span>
<a name="line-168"></a><a name="PackageFixedDeps"></a><span class='hs-comment'>-- So for example a not-yet-configured package has dependencies on version</span>
<a name="line-169"></a><a name="PackageFixedDeps"></a><span class='hs-comment'>-- ranges, not specific versions. A configured or an already installed package</span>
<a name="line-170"></a><a name="PackageFixedDeps"></a><span class='hs-comment'>-- depends on exact versions. Some operations or data structures (like</span>
<a name="line-171"></a><a name="PackageFixedDeps"></a><span class='hs-comment'>-- dependency graphs) only make sense on this subclass of package types.</span>
<a name="line-172"></a><a name="PackageFixedDeps"></a><span class='hs-comment'>--</span>
<a name="line-173"></a><a name="PackageFixedDeps"></a><span class='hs-keyword'>class</span> <span class='hs-conid'>Package</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>PackageFixedDeps</span> <span class='hs-varid'>pkg</span> <span class='hs-keyword'>where</span>
<a name="line-174"></a> <span class='hs-varid'>depends</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>pkg</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>PackageIdentifier</span><span class='hs-keyglyph'>]</span>
</pre></body>
</html>
|