1{"version":3,"file":"generateFunctionMap.js","names":["generateFunctionMap","projectRoot","ast","context","process","env","EXPO_USE_FB_SOURCES","importMetroSourceMapFromProject"],"sources":["../../src/transformer/generateFunctionMap.ts"],"sourcesContent":["import type { generateFunctionMap as generateFunctionMapType } from 'metro-source-map';\n\nimport { importMetroSourceMapFromProject } from '../importMetroFromProject';\n\nexport function generateFunctionMap(\n projectRoot: string,\n ast: Parameters<typeof generateFunctionMapType>[0],\n context: Parameters<typeof generateFunctionMapType>[1]\n): ReturnType<typeof generateFunctionMapType> | null {\n // `x_facebook_sources` is a source map feature that we disable by default since it isn't documented\n // and doesn't appear to add much value to the DX, it also increases bundle time, and source map size.\n // The feature supposedly provides improved function names for anonymous functions, but we will opt towards\n // linting to prevent users from adding anonymous functions for important features like React components.\n //\n // Here is an example stack trace for a component that throws an error\n // in the root component (which is an anonymous function):\n //\n // Before:\n // - <anonymous> App.js:5:9\n // - renderApplication renderApplication.js:54:5\n // - runnables.appKey.run AppRegistry.js:117:26\n //\n // After:\n // - _default App.js:5:9\n // - renderApplication renderApplication.js:54:5\n // - run AppRegistry.js:117:26\n //\n if (process.env.EXPO_USE_FB_SOURCES) {\n return importMetroSourceMapFromProject(projectRoot).generateFunctionMap(ast, context);\n }\n return null;\n}\n"],"mappings":";;;;;;AAEA;EAAA;EAAA;IAAA;EAAA;EAAA;AAAA;AAEO,SAASA,mBAAmB,CACjCC,WAAmB,EACnBC,GAAkD,EAClDC,OAAsD,EACH;EACnD;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA,IAAIC,OAAO,CAACC,GAAG,CAACC,mBAAmB,EAAE;IACnC,OAAO,IAAAC,yDAA+B,EAACN,WAAW,CAAC,CAACD,mBAAmB,CAACE,GAAG,EAAEC,OAAO,CAAC;EACvF;EACA,OAAO,IAAI;AACb"}