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Vadim Demedes
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Jun 18, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| import * as fs from 'fs'; | ||
| import React from 'react'; | ||
| import type {FC} from 'react'; | ||
| import StackUtils from 'stack-utils'; | ||
| import codeExcerpt, {ExcerptLine} from 'code-excerpt'; | ||
| import Box from './Box'; | ||
| import Text from './Text'; | ||
|
|
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| const stackUtils = new StackUtils({ | ||
| cwd: process.cwd(), | ||
| internals: StackUtils.nodeInternals() | ||
| }); | ||
|
|
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| interface Props { | ||
| error: Error; | ||
| } | ||
|
|
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| const ErrorOverview: FC<Props> = ({error}) => { | ||
| const stack = error.stack!.split('\n').slice(1); | ||
| const origin = stackUtils.parseLine(stack[0]); | ||
| let excerpt: ExcerptLine[] | undefined; | ||
| let lineWidth = 0; | ||
|
|
||
| if (origin?.file && origin?.line) { | ||
| const sourceCode = fs.readFileSync(origin.file, 'utf8'); | ||
| excerpt = codeExcerpt(sourceCode, origin.line); | ||
|
|
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| if (excerpt) { | ||
| for (const {line} of excerpt) { | ||
| lineWidth = Math.max(lineWidth, String(line).length); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return ( | ||
| <Box flexDirection="column" padding={1}> | ||
| <Box> | ||
| <Text backgroundColor="red" color="white"> | ||
| {' '} | ||
| ERROR{' '} | ||
| </Text> | ||
|
|
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| <Text> {error.message}</Text> | ||
| </Box> | ||
|
|
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| {origin && ( | ||
| <Box marginTop={1}> | ||
| <Text dimColor> | ||
| {origin.file}:{origin.line}:{origin.column} | ||
| </Text> | ||
| </Box> | ||
| )} | ||
|
|
||
| {origin && excerpt && ( | ||
| <Box marginTop={1} flexDirection="column"> | ||
| {excerpt.map(({line, value}) => ( | ||
| <Box key={line}> | ||
| <Box width={lineWidth + 1}> | ||
| <Text | ||
| dimColor={line !== origin.line} | ||
| backgroundColor={line === origin.line ? 'red' : undefined} | ||
| color={line === origin.line ? 'white' : undefined} | ||
| > | ||
| {String(line).padStart(lineWidth, ' ')}: | ||
| </Text> | ||
| </Box> | ||
|
|
||
| <Text | ||
| key={line} | ||
| backgroundColor={line === origin.line ? 'red' : undefined} | ||
| color={line === origin.line ? 'white' : undefined} | ||
| > | ||
| {' ' + value} | ||
| </Text> | ||
| </Box> | ||
| ))} | ||
| </Box> | ||
| )} | ||
|
|
||
| <Box marginTop={1} flexDirection="column"> | ||
| {error | ||
| .stack!.split('\n') | ||
| .slice(1) | ||
| .map(line => { | ||
| const parsedLine = stackUtils.parseLine(line)!; | ||
|
|
||
| return ( | ||
| <Box key={line}> | ||
| <Text dimColor>- </Text> | ||
| <Text dimColor bold> | ||
| {parsedLine.function} | ||
| </Text> | ||
| <Text dimColor color="gray"> | ||
| {' '} | ||
| ({parsedLine.file}:{parsedLine.line}:{parsedLine.column}) | ||
| </Text> | ||
| </Box> | ||
| ); | ||
| })} | ||
| </Box> | ||
| </Box> | ||
| ); | ||
| }; | ||
|
|
||
| export default ErrorOverview; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| /* eslint-disable unicorn/string-content */ | ||
| import React from 'react'; | ||
| import test from 'ava'; | ||
| import {spy} from 'sinon'; | ||
| import patchConsole from 'patch-console'; | ||
| import stripAnsi from 'strip-ansi'; | ||
| import {render} from '../src'; | ||
|
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| let restore; | ||
|
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| test.before(() => { | ||
| restore = patchConsole(); | ||
| }); | ||
|
|
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| test.after(() => { | ||
| restore(); | ||
| }); | ||
|
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| test('catch and display error', t => { | ||
| const stdout = { | ||
| columns: 100, | ||
| write: spy() | ||
| }; | ||
|
|
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| const Test = () => { | ||
| throw new Error('Oh no'); | ||
| }; | ||
|
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| render(<Test />, {stdout}); | ||
|
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| t.deepEqual( | ||
| stripAnsi(stdout.write.lastCall.args[0]).split('\n').slice(0, 14), | ||
| [ | ||
| '', | ||
| ' ERROR Oh no', | ||
| '', | ||
| ' test/errors.tsx:26:9', | ||
| '', | ||
| ' 23: };', | ||
| ' 24:', | ||
| ' 25: const Test = () => {', | ||
| " 26: throw new Error('Oh no');", | ||
| ' 27: };', | ||
| ' 28:', | ||
| ' 29: render(<Test />, {stdout});', | ||
| '', | ||
| ' - Test (test/errors.tsx:26:9)' | ||
| ] | ||
| ); | ||
| }); |