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packages/react-devtools-shared/src/hooks/ErrorTester.js
34 строки
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Andrew Clark
[Codemod] Update copyright header to Meta (#25315)
18 окт 2022, 18:19
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18 окт 2022, 18:19
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/** * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * @flow */ import ErrorStackParser from 'error-stack-parser'; import testErrorStack, { SOURCE_STACK_FRAME_LINE_NUMBER, } from './ErrorTesterCompiled'; let sourceMapsAreAppliedToErrors: boolean | null = null; // Source maps are automatically applied to Error stack frames. export function areSourceMapsAppliedToErrors(): boolean { if (sourceMapsAreAppliedToErrors === null) { try { testErrorStack(); sourceMapsAreAppliedToErrors = false; } catch (error) { const parsed = ErrorStackParser.parse(error); const topStackFrame = parsed[0]; const lineNumber = topStackFrame.lineNumber; if (lineNumber === SOURCE_STACK_FRAME_LINE_NUMBER) { sourceMapsAreAppliedToErrors = true; } } } return sourceMapsAreAppliedToErrors === true; }