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import{_ as l,o as p,c as o,k as s,a,X as n}from"./chunks/framework.6e839c56.js";const C=JSON.parse('{"title":"Xerror","description":"","frontmatter":{},"headers":[],"relativePath":"en/api/packages/xerror.md","filePath":"en/api/packages/xerror.md"}'),e={name:"en/api/packages/xerror.md"},r=s("h1",{id:"Xerror",tabindex:"-1"},[a("Xerror "),s("a",{class:"header-anchor",href:"#Xerror","aria-label":'Permalink to "Xerror"'},"​")],-1),t=s("p",null,"Package xerror implements helpers for errors.",-1),c=s("div",{STYLE:"page-break-after: always;"},null,-1),y=s("h2",{id:"Source-",tabindex:"-1"},[a("Source: "),s("a",{class:"header-anchor",href:"#Source-","aria-label":'Permalink to "Source:"'},"​")],-1),F=s("ul",null,[s("li",null,[s("a",{href:"https://github.com/duke-git/lancet/blob/main/xerror/xerror.go",target:"_blank",rel:"noreferrer"},"https://github.com/duke-git/lancet/blob/main/xerror/xerror.go")])],-1),i=s("div",{STYLE:"page-break-after: always;"},null,-1),E=n(`<h2 id="Usage-" tabindex="-1">Usage: <a class="header-anchor" href="#Usage-" aria-label="Permalink to &quot;Usage:&quot;">​</a></h2><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span></code></pre></div>`,2),u=s("div",{STYLE:"page-break-after: always;"},null,-1),A=n('<h2 id="Index" tabindex="-1">Index <a class="header-anchor" href="#Index" aria-label="Permalink to &quot;Index&quot;">​</a></h2><ul><li><a href="#New">New</a></li><li><a href="#Wrap">Wrap</a></li><li><a href="#Unwrap">Unwrap</a></li><li><a href="#XError_Wrap">XError_Wrap</a></li><li><a href="#XError_Unwrap">XError_Unwrap</a></li><li><a href="#XError_With">XError_With</a></li><li><a href="#XError_Is">XError_Is</a></li><li><a href="#XError_Id">XError_Id</a></li><li><a href="#XError_Values">XError_Values</a></li><li><a href="#XError_StackTrace">XError_StackTrace</a></li><li><a href="#XError_Info">XError_Info</a></li><li><a href="#XError_Error">XError_Error</a></li><li><a href="#TryUnwrap">TryUnwrap</a></li></ul>',2),d=s("div",{STYLE:"page-break-after: always;"},null,-1),g=n(`<h2 id="Documentation" tabindex="-1">Documentation <a class="header-anchor" href="#Documentation" aria-label="Permalink to &quot;Documentation&quot;">​</a></h2><h3 id="New" tabindex="-1"><span id="New">New</span> <a class="header-anchor" href="#New" aria-label="Permalink to &quot;&lt;span id=&quot;New&quot;&gt;New&lt;/span&gt;&quot;">​</a></h3><p>Creates a new XError pointer instance with message.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">type</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;font-style:italic;">XError</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">struct</span><span style="color:#F6F6F4;"> {</span></span>
<span class="line"><span style="color:#F6F6F4;"> id </span><span style="color:#97E1F1;font-style:italic;">string</span></span>
<span class="line"><span style="color:#F6F6F4;"> message </span><span style="color:#97E1F1;font-style:italic;">string</span></span>
<span class="line"><span style="color:#F6F6F4;"> stack </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">stack</span></span>
<span class="line"><span style="color:#F6F6F4;"> cause </span><span style="color:#97E1F1;font-style:italic;">error</span></span>
<span class="line"><span style="color:#F6F6F4;"> values </span><span style="color:#F286C4;">map</span><span style="color:#F6F6F4;">[</span><span style="color:#97E1F1;font-style:italic;">string</span><span style="color:#F6F6F4;">]any</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">New</span><span style="color:#F6F6F4;">(format </span><span style="color:#97E1F1;font-style:italic;">string</span><span style="color:#F6F6F4;">, args </span><span style="color:#F286C4;">...</span><span style="color:#F6F6F4;">any) </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">type</span><span style="color:#393A34;"> </span><span style="color:#2E8F82;">XError</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">struct</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> id </span><span style="color:#AB5959;">string</span></span>
<span class="line"><span style="color:#393A34;"> message </span><span style="color:#AB5959;">string</span></span>
<span class="line"><span style="color:#393A34;"> stack </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">stack</span></span>
<span class="line"><span style="color:#393A34;"> cause </span><span style="color:#AB5959;">error</span></span>
<span class="line"><span style="color:#393A34;"> values </span><span style="color:#1E754F;">map</span><span style="color:#999999;">[</span><span style="color:#AB5959;">string</span><span style="color:#999999;">]</span><span style="color:#393A34;">any</span></span>
<span class="line"><span style="color:#999999;">}</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">New</span><span style="color:#999999;">(</span><span style="color:#393A34;">format </span><span style="color:#AB5959;">string</span><span style="color:#999999;">,</span><span style="color:#393A34;"> args </span><span style="color:#AB5959;">...</span><span style="color:#393A34;">any</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/w4oWZts7q7f" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(err.</span><span style="color:#97E1F1;">Error</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// error</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">err</span><span style="color:#999999;">.</span><span style="color:#998418;">Error</span><span style="color:#999999;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// error</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="Wrap" tabindex="-1"><span id="Wrap">Wrap</span> <a class="header-anchor" href="#Wrap" aria-label="Permalink to &quot;&lt;span id=&quot;Wrap&quot;&gt;Wrap&lt;/span&gt;&quot;">​</a></h3><p>Creates a new XError pointer instance based on error object, and add message.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">Wrap</span><span style="color:#F6F6F4;">(cause </span><span style="color:#97E1F1;font-style:italic;">error</span><span style="color:#F6F6F4;">, message </span><span style="color:#F286C4;">...</span><span style="color:#F6F6F4;">any) </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Wrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">cause </span><span style="color:#AB5959;">error</span><span style="color:#999999;">,</span><span style="color:#393A34;"> message </span><span style="color:#AB5959;">...</span><span style="color:#393A34;">any</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/5385qT2dCi4" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">wrong password</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> wrapErr </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">Wrap</span><span style="color:#F6F6F4;">(err, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(wrapErr.</span><span style="color:#97E1F1;">Error</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// error: wrong password</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">wrong password</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">wrapErr</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">Wrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">err</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">wrapErr</span><span style="color:#999999;">.</span><span style="color:#998418;">Error</span><span style="color:#999999;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// error: wrong password</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="Unwrap" tabindex="-1"><span id="Unwrap">Unwrap</span> <a class="header-anchor" href="#Unwrap" aria-label="Permalink to &quot;&lt;span id=&quot;Unwrap&quot;&gt;Unwrap&lt;/span&gt;&quot;">​</a></h3><p>Returns unwrapped XError from err by errors.As. If no XError, returns nil.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">Unwrap</span><span style="color:#F6F6F4;">(err </span><span style="color:#97E1F1;font-style:italic;">error</span><span style="color:#F6F6F4;">) </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Unwrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">err </span><span style="color:#AB5959;">error</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/LKMLep723tu" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/pkg/errors</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err1 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">With</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">high</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> wrapErr </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> errors.</span><span style="color:#97E1F1;">Wrap</span><span style="color:#F6F6F4;">(err1, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">oops</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">Unwrap</span><span style="color:#F6F6F4;">(wrapErr)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> values </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err.</span><span style="color:#97E1F1;">Values</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(values[</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">])</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// high</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/pkg/errors</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err1</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">With</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">high</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">wrapErr</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> errors</span><span style="color:#999999;">.</span><span style="color:#998418;">Wrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">err1</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">oops</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">Unwrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">wrapErr</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">values</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err</span><span style="color:#999999;">.</span><span style="color:#998418;">Values</span><span style="color:#999999;">()</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">values</span><span style="color:#999999;">[</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">])</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// high</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-Wrap" tabindex="-1"><span id="XError_Wrap">XError_Wrap</span> <a class="header-anchor" href="#XError-Wrap" aria-label="Permalink to &quot;&lt;span id=&quot;XError_Wrap&quot;&gt;XError_Wrap&lt;/span&gt;&quot;">​</a></h3><p>Creates a new XError and copy message and id to new one.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">Wrap</span><span style="color:#F6F6F4;">(cause </span><span style="color:#97E1F1;font-style:italic;">error</span><span style="color:#F6F6F4;">) </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Wrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">cause </span><span style="color:#AB5959;">error</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/RpjJ5u5sc97" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">errors</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err1 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">With</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">high</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> err2 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err1.</span><span style="color:#97E1F1;">Wrap</span><span style="color:#F6F6F4;">(errors.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">invalid username</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">))</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(err2.</span><span style="color:#97E1F1;">Error</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// error: invalid username</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">errors</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err1</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">With</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">high</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err2</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err1</span><span style="color:#999999;">.</span><span style="color:#998418;">Wrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">errors</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">invalid username</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">))</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">err2</span><span style="color:#999999;">.</span><span style="color:#998418;">Error</span><span style="color:#999999;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// error: invalid username</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-Unwrap" tabindex="-1"><span id="XError_Unwrap">XError_Unwrap</span> <a class="header-anchor" href="#XError-Unwrap" aria-label="Permalink to &quot;&lt;span id=&quot;XError_Unwrap&quot;&gt;XError_Unwrap&lt;/span&gt;&quot;">​</a></h3><p>Compatible with github.com/pkg/errors.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">Unwrap</span><span style="color:#F6F6F4;">() </span><span style="color:#97E1F1;font-style:italic;">error</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Unwrap</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">error</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/VUXJ8BST4c6" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err1 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">With</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">high</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> err2 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err1.</span><span style="color:#97E1F1;">Wrap</span><span style="color:#F6F6F4;">(errors.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">invalid username</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">))</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err2.</span><span style="color:#97E1F1;">Unwrap</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(err.</span><span style="color:#97E1F1;">Error</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// invalid username</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err1</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">With</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">high</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err2</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err1</span><span style="color:#999999;">.</span><span style="color:#998418;">Wrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">errors</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">invalid username</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">))</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err2</span><span style="color:#999999;">.</span><span style="color:#998418;">Unwrap</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">err</span><span style="color:#999999;">.</span><span style="color:#998418;">Error</span><span style="color:#999999;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// invalid username</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-With" tabindex="-1"><span id="XError_With">XError_With</span> <a class="header-anchor" href="#XError-With" aria-label="Permalink to &quot;&lt;span id=&quot;XError_With&quot;&gt;XError_With&lt;/span&gt;&quot;">​</a></h3><p>Adds key and value related to the XError object.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">With</span><span style="color:#F6F6F4;">(key </span><span style="color:#97E1F1;font-style:italic;">string</span><span style="color:#F6F6F4;">, value any) </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">With</span><span style="color:#999999;">(</span><span style="color:#393A34;">key </span><span style="color:#AB5959;">string</span><span style="color:#999999;">,</span><span style="color:#393A34;"> value any</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/ow8UISXX_Dp" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">With</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">high</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> errLevel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err.</span><span style="color:#97E1F1;">Values</span><span style="color:#F6F6F4;">()[</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">]</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(errLevel)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// high</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">With</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">high</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">errLevel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err</span><span style="color:#999999;">.</span><span style="color:#998418;">Values</span><span style="color:#999999;">()[</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">]</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">errLevel</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// high</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-Id" tabindex="-1"><span id="XError_Id">XError_Id</span> <a class="header-anchor" href="#XError-Id" aria-label="Permalink to &quot;&lt;span id=&quot;XError_Id&quot;&gt;XError_Id&lt;/span&gt;&quot;">​</a></h3><p>Sets XError object id to check equality in XError.Is.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">Id</span><span style="color:#F6F6F4;">(id </span><span style="color:#97E1F1;font-style:italic;">string</span><span style="color:#F6F6F4;">) </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Id</span><span style="color:#999999;">(</span><span style="color:#393A34;">id </span><span style="color:#AB5959;">string</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/X6HBlsy58U9" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err1 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">Id</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">e001</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> err2 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">Id</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">e001</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> err3 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">Id</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">e003</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> equal </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err1.</span><span style="color:#97E1F1;">Is</span><span style="color:#F6F6F4;">(err2)</span></span>
<span class="line"><span style="color:#F6F6F4;"> notEqual </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err1.</span><span style="color:#97E1F1;">Is</span><span style="color:#F6F6F4;">(err3)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(equal)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(notEqual)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// true</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// false</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err1</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">Id</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">e001</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err2</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">Id</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">e001</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err3</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">Id</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">e003</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">equal</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err1</span><span style="color:#999999;">.</span><span style="color:#998418;">Is</span><span style="color:#999999;">(</span><span style="color:#393A34;">err2</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">notEqual</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err1</span><span style="color:#999999;">.</span><span style="color:#998418;">Is</span><span style="color:#999999;">(</span><span style="color:#393A34;">err3</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">equal</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">notEqual</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// true</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// false</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-Is" tabindex="-1"><span id="XError_Is">XError_Is</span> <a class="header-anchor" href="#XError-Is" aria-label="Permalink to &quot;&lt;span id=&quot;XError_Is&quot;&gt;XError_Is&lt;/span&gt;&quot;">​</a></h3><p>Checks if target error is XError and Error.id of two errors are matched.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">Is</span><span style="color:#F6F6F4;">(target </span><span style="color:#97E1F1;font-style:italic;">error</span><span style="color:#F6F6F4;">) </span><span style="color:#97E1F1;font-style:italic;">bool</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Is</span><span style="color:#999999;">(</span><span style="color:#393A34;">target </span><span style="color:#AB5959;">error</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">bool</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/X6HBlsy58U9" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err1 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">Id</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">e001</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> err2 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">Id</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">e001</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> err3 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">Id</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">e003</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> equal </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err1.</span><span style="color:#97E1F1;">Is</span><span style="color:#F6F6F4;">(err2)</span></span>
<span class="line"><span style="color:#F6F6F4;"> notEqual </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err1.</span><span style="color:#97E1F1;">Is</span><span style="color:#F6F6F4;">(err3)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(equal)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(notEqual)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// true</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// false</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err1</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">Id</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">e001</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err2</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">Id</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">e001</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err3</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">Id</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">e003</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">equal</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err1</span><span style="color:#999999;">.</span><span style="color:#998418;">Is</span><span style="color:#999999;">(</span><span style="color:#393A34;">err2</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">notEqual</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err1</span><span style="color:#999999;">.</span><span style="color:#998418;">Is</span><span style="color:#999999;">(</span><span style="color:#393A34;">err3</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">equal</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">notEqual</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// true</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// false</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-Values" tabindex="-1"><span id="XError_Values">XError_Values</span> <a class="header-anchor" href="#XError-Values" aria-label="Permalink to &quot;&lt;span id=&quot;XError_Values&quot;&gt;XError_Values&lt;/span&gt;&quot;">​</a></h3><p>Returns map of key and value that is set by With. All wrapped xerror.XError key and values will be merged. Key and values of wrapped error is overwritten by upper xerror.XError.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">Values</span><span style="color:#F6F6F4;">() </span><span style="color:#F286C4;">map</span><span style="color:#F6F6F4;">[</span><span style="color:#97E1F1;font-style:italic;">string</span><span style="color:#F6F6F4;">]any</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Values</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">map</span><span style="color:#999999;">[</span><span style="color:#AB5959;">string</span><span style="color:#999999;">]</span><span style="color:#393A34;">any</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/ow8UISXX_Dp" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">With</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">high</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> errLevel </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err.</span><span style="color:#97E1F1;">Values</span><span style="color:#F6F6F4;">()[</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">]</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(errLevel)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// high</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">With</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">high</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">errLevel</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err</span><span style="color:#999999;">.</span><span style="color:#998418;">Values</span><span style="color:#999999;">()[</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">]</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">errLevel</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// high</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-StackTrace" tabindex="-1"><span id="XError_StackTrace">XError_StackTrace</span> <a class="header-anchor" href="#XError-StackTrace" aria-label="Permalink to &quot;&lt;span id=&quot;XError_StackTrace&quot;&gt;XError_StackTrace&lt;/span&gt;&quot;">​</a></h3><p>Returns stack trace which is compatible with pkg/errors.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">StackTrace</span><span style="color:#F6F6F4;">() StackTrace</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">StackTrace</span><span style="color:#999999;">()</span><span style="color:#393A34;"> StackTrace</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/6FAvSQpa7pc" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> stacks </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err.</span><span style="color:#97E1F1;">Stacks</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(stacks[</span><span style="color:#BF9EEE;">0</span><span style="color:#F6F6F4;">].Func)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(stacks[</span><span style="color:#BF9EEE;">0</span><span style="color:#F6F6F4;">].Line)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> containFile </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> strings.</span><span style="color:#97E1F1;">Contains</span><span style="color:#F6F6F4;">(stacks[</span><span style="color:#BF9EEE;">0</span><span style="color:#F6F6F4;">].File, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">xxx.go</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(containFile)</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">stacks</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err</span><span style="color:#999999;">.</span><span style="color:#998418;">Stacks</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">stacks</span><span style="color:#999999;">[</span><span style="color:#2F798A;">0</span><span style="color:#999999;">].</span><span style="color:#393A34;">Func</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">stacks</span><span style="color:#999999;">[</span><span style="color:#2F798A;">0</span><span style="color:#999999;">].</span><span style="color:#393A34;">Line</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">containFile</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> strings</span><span style="color:#999999;">.</span><span style="color:#998418;">Contains</span><span style="color:#999999;">(</span><span style="color:#393A34;">stacks</span><span style="color:#999999;">[</span><span style="color:#2F798A;">0</span><span style="color:#999999;">].</span><span style="color:#393A34;">File</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">xxx.go</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">containFile</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-Info" tabindex="-1"><span id="XError_Info">XError_Info</span> <a class="header-anchor" href="#XError-Info" aria-label="Permalink to &quot;&lt;span id=&quot;XError_Info&quot;&gt;XError_Info&lt;/span&gt;&quot;">​</a></h3><p>Returns information of xerror, which can be printed.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">Info</span><span style="color:#F6F6F4;">() </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">errInfo</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Info</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">errInfo</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/1ZX0ME1F-Jb" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> cause </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> errors.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">Wrap</span><span style="color:#F6F6F4;">(cause, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">invalid username</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">Id</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">e001</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">).</span><span style="color:#97E1F1;">With</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">, </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">high</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> errInfo </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> err.</span><span style="color:#97E1F1;">Info</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(errInfo.Id)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(errInfo.Cause)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(errInfo.Values[</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">level</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">])</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(errInfo.Message)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// e001</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// error</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// high</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// invalid username</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">cause</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> errors</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">Wrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">cause</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">invalid username</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">Id</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">e001</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">).</span><span style="color:#998418;">With</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">high</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">errInfo</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> err</span><span style="color:#999999;">.</span><span style="color:#998418;">Info</span><span style="color:#999999;">()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">errInfo</span><span style="color:#999999;">.</span><span style="color:#393A34;">Id</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">errInfo</span><span style="color:#999999;">.</span><span style="color:#393A34;">Cause</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">errInfo</span><span style="color:#999999;">.</span><span style="color:#393A34;">Values</span><span style="color:#999999;">[</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">level</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">])</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">errInfo</span><span style="color:#999999;">.</span><span style="color:#393A34;">Message</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// e001</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// error</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// high</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// invalid username</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="XError-Error" tabindex="-1"><span id="XError_Error">XError_Error</span> <a class="header-anchor" href="#XError-Error" aria-label="Permalink to &quot;&lt;span id=&quot;XError_Error&quot;&gt;XError_Error&lt;/span&gt;&quot;">​</a></h3><p>Error implements standard error interface.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> (e </span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">XError) </span><span style="color:#62E884;">Error</span><span style="color:#F6F6F4;">() </span><span style="color:#97E1F1;font-style:italic;">string</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span><span style="color:#393A34;">e </span><span style="color:#AB5959;">*</span><span style="color:#393A34;">XError</span><span style="color:#999999;">)</span><span style="color:#393A34;"> </span><span style="color:#59873A;">Error</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#AB5959;">string</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/w4oWZts7q7f" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">New</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">error</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(err.</span><span style="color:#97E1F1;">Error</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// error</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">New</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">error</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">err</span><span style="color:#999999;">.</span><span style="color:#998418;">Error</span><span style="color:#999999;">())</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// error</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div><h3 id="TryUnwrap" tabindex="-1"><span id="TryUnwrap">TryUnwrap</span> <a class="header-anchor" href="#TryUnwrap" aria-label="Permalink to &quot;&lt;span id=&quot;TryUnwrap&quot;&gt;TryUnwrap&lt;/span&gt;&quot;">​</a></h3><p>TryUnwrap if err is nil then it returns a valid value. If err is not nil, Unwrap panics with err.</p><p><b>Signature:</b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> TryUnwrap[T any](val T, err </span><span style="color:#97E1F1;font-style:italic;">error</span><span style="color:#F6F6F4;">) T</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> TryUnwrap</span><span style="color:#999999;">[</span><span style="color:#393A34;">T any</span><span style="color:#999999;">](</span><span style="color:#393A34;">val T</span><span style="color:#999999;">,</span><span style="color:#393A34;"> err </span><span style="color:#AB5959;">error</span><span style="color:#999999;">)</span><span style="color:#393A34;"> T</span></span></code></pre></div><p><b>Example:<span style="float:right;display:inline-block;"><a href="https://go.dev/play/p/acyZVkNZEeW" target="_blank" rel="noreferrer">Run</a></span></b></p><div class="language-go vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">go</span><pre class="shiki dracula-soft vp-code-dark"><code><span class="line"><span style="color:#F286C4;">package</span><span style="color:#F6F6F4;"> main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">import</span><span style="color:#F6F6F4;"> (</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">fmt</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#DEE492;">&quot;</span></span>
<span class="line"><span style="color:#F6F6F4;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;"> </span><span style="color:#62E884;">main</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> result1 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">TryUnwrap</span><span style="color:#F6F6F4;">(strconv.</span><span style="color:#97E1F1;">Atoi</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">42</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">))</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(result1)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> _, err </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> strconv.</span><span style="color:#97E1F1;">Atoi</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">4o2</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">)</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">defer</span><span style="color:#F6F6F4;"> </span><span style="color:#F286C4;">func</span><span style="color:#F6F6F4;">() {</span></span>
<span class="line"><span style="color:#F6F6F4;"> v </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> </span><span style="color:#97E1F1;">recover</span><span style="color:#F6F6F4;">()</span></span>
<span class="line"><span style="color:#F6F6F4;"> result2 </span><span style="color:#F286C4;">:=</span><span style="color:#F6F6F4;"> reflect.</span><span style="color:#97E1F1;">DeepEqual</span><span style="color:#F6F6F4;">(err.</span><span style="color:#97E1F1;">Error</span><span style="color:#F6F6F4;">(), v.(</span><span style="color:#F286C4;">*</span><span style="color:#F6F6F4;">strconv.NumError).</span><span style="color:#97E1F1;">Error</span><span style="color:#F6F6F4;">())</span></span>
<span class="line"><span style="color:#F6F6F4;"> fmt.</span><span style="color:#97E1F1;">Println</span><span style="color:#F6F6F4;">(result2)</span></span>
<span class="line"><span style="color:#F6F6F4;"> }()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> xerror.</span><span style="color:#97E1F1;">TryUnwrap</span><span style="color:#F6F6F4;">(strconv.</span><span style="color:#97E1F1;">Atoi</span><span style="color:#F6F6F4;">(</span><span style="color:#DEE492;">&quot;</span><span style="color:#E7EE98;">4o2</span><span style="color:#DEE492;">&quot;</span><span style="color:#F6F6F4;">))</span></span>
<span class="line"></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// Output:</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// 42</span></span>
<span class="line"><span style="color:#F6F6F4;"> </span><span style="color:#7B7F8B;">// true</span></span>
<span class="line"><span style="color:#F6F6F4;">}</span></span></code></pre><pre class="shiki vitesse-light vp-code-light"><code><span class="line"><span style="color:#1E754F;">package</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">import</span><span style="color:#393A34;"> </span><span style="color:#999999;">(</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">fmt</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B5695999;">&quot;</span><span style="color:#59873A;">github.com/duke-git/lancet/v2/xerror</span><span style="color:#B5695999;">&quot;</span></span>
<span class="line"><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#1E754F;">func</span><span style="color:#393A34;"> </span><span style="color:#59873A;">main</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">result1</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">TryUnwrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">strconv</span><span style="color:#999999;">.</span><span style="color:#998418;">Atoi</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">42</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">))</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">result1</span><span style="color:#999999;">)</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">_</span><span style="color:#999999;">,</span><span style="color:#393A34;"> </span><span style="color:#B07D48;">err</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> strconv</span><span style="color:#999999;">.</span><span style="color:#998418;">Atoi</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">4o2</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#1E754F;">defer</span><span style="color:#393A34;"> </span><span style="color:#1E754F;">func</span><span style="color:#999999;">()</span><span style="color:#393A34;"> </span><span style="color:#999999;">{</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">v</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> </span><span style="color:#998418;">recover</span><span style="color:#999999;">()</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#B07D48;">result2</span><span style="color:#393A34;"> </span><span style="color:#999999;">:=</span><span style="color:#393A34;"> reflect</span><span style="color:#999999;">.</span><span style="color:#998418;">DeepEqual</span><span style="color:#999999;">(</span><span style="color:#393A34;">err</span><span style="color:#999999;">.</span><span style="color:#998418;">Error</span><span style="color:#999999;">(),</span><span style="color:#393A34;"> v</span><span style="color:#999999;">.(</span><span style="color:#AB5959;">*</span><span style="color:#393A34;">strconv</span><span style="color:#999999;">.</span><span style="color:#393A34;">NumError</span><span style="color:#999999;">).</span><span style="color:#998418;">Error</span><span style="color:#999999;">())</span></span>
<span class="line"><span style="color:#393A34;"> fmt</span><span style="color:#999999;">.</span><span style="color:#998418;">Println</span><span style="color:#999999;">(</span><span style="color:#393A34;">result2</span><span style="color:#999999;">)</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#999999;">}()</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> xerror</span><span style="color:#999999;">.</span><span style="color:#998418;">TryUnwrap</span><span style="color:#999999;">(</span><span style="color:#393A34;">strconv</span><span style="color:#999999;">.</span><span style="color:#998418;">Atoi</span><span style="color:#999999;">(</span><span style="color:#B5695999;">&quot;</span><span style="color:#B56959;">4o2</span><span style="color:#B5695999;">&quot;</span><span style="color:#999999;">))</span></span>
<span class="line"></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// Output:</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// 42</span></span>
<span class="line"><span style="color:#393A34;"> </span><span style="color:#A0ADA0;">// true</span></span>
<span class="line"><span style="color:#999999;">}</span></span></code></pre></div>`,79),h=[r,t,c,y,F,i,E,u,A,d,g];function q(B,v,f,m,D,k){return p(),o("div",null,h)}const _=l(e,[["render",q]]);export{C as __pageData,_ as default};
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