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next.js/packages/next/lib/error-debug.js

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// @flow
import React from 'react'
import ansiHTML from 'ansi-html'
import Head from './head'
// This component is rendered through dev-error-overlay on the client side.
// On the server side it's rendered directly
export default function ErrorDebug ({error, info}: any) {
const { name, message, module } = error
return (
<div style={styles.errorDebug}>
<Head>
<meta name='viewport' content='width=device-width, initial-scale=1.0' />
</Head>
{module ? <h1 style={styles.heading}>Error in {module.rawRequest}</h1> : null}
{
name === 'ModuleBuildError' && message
? <pre style={styles.stack} dangerouslySetInnerHTML={{ __html: ansiHTML(encodeHtml(message)) }} />
: <StackTrace error={error} info={info} />
}
</div>
)
}
const StackTrace = ({ error: { name, message, stack }, info }: any) => (
<div>
<div style={styles.heading}>{message || name}</div>
<pre style={styles.stack}>
{stack}
</pre>
{info && <pre style={styles.stack}>
{info.componentStack}
</pre>}
</div>
)
export const styles = {
errorDebug: {
background: '#ffffff',
boxSizing: 'border-box',
overflow: 'auto',
padding: '24px',
position: 'fixed',
left: 0,
right: 0,
top: 0,
bottom: 0,
zIndex: 9999,
color: '#000000'
},
stack: {
fontFamily: '"SF Mono", "Roboto Mono", "Fira Mono", consolas, menlo-regular, monospace',
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fontSize: '13px',
lineHeight: '18px',
color: '#777',
margin: 0,
whiteSpace: 'pre-wrap',
wordWrap: 'break-word',
marginTop: '16px'
},
heading: {
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fontFamily: '-apple-system, system-ui, BlinkMacSystemFont, Roboto, "Segoe UI", "Fira Sans", Avenir, "Helvetica Neue", "Lucida Grande", sans-serif',
fontSize: '20px',
fontWeight: '400',
lineHeight: '28px',
color: '#000000',
marginBottom: '0px',
marginTop: '0px'
}
}
const encodeHtml = str => {
return str.replace(/</g, '&lt;').replace(/>/g, '&gt;')
}
// see color definitions of babel-code-frame:
// https://github.com/babel/babel/blob/master/packages/babel-code-frame/src/index.js
ansiHTML.setColors({
reset: ['6F6767', '0e0d0d'],
darkgrey: '6F6767',
yellow: '6F6767',
green: 'ebe7e5',
magenta: 'ebe7e5',
blue: 'ebe7e5',
cyan: 'ebe7e5',
red: 'ff001f'
})