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Top 10 Examples of "istanbul-lib-source-maps in functional component" in JavaScript

Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'istanbul-lib-source-maps' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.

import { createSourceMapStore } from 'istanbul-lib-source-maps';
import { CoverageMap } from 'istanbul-lib-coverage';
import { RawSourceMap } from 'source-map';

createSourceMapStore();
createSourceMapStore({});
const store = createSourceMapStore({
	verbose: false,
	baseDir: 'foo',
	sourceStore: 'memory',
	tmpdir: 'foo'
});

store.data['foo'].type.trim();

const sourceMap: RawSourceMap = {
	version: 1 as any as string, // Fixed by https://github.com/mozilla/source-map/pull/293 but the fix is not yet published
	sources: ['foo', 'bar'],
	names: ['foo', 'bar'],
	mappings: 'foo',
	file: 'foo'
};
store.registerMap('foo', sourceMap);
callback = includes;
        includes = null;
    }

    const includePid = config.instrumentation.includePid();
    const reportingDir = path.resolve(config.reporting.dir());
    const reporter = new Reporter(config);
    const excludes = config.instrumentation.excludes(true);
    // The coverage variable below should have different value than
    // that of the coverage variable actually used by the instrumenter (in this case: __coverage__).
    // Otherwise if you run nyc to provide coverage on these files,
    // both the actual instrumenter and this file will write to the global coverage variable,
    // and provide unexpected coverage result.
    const coverageVar = '$$coverage$$';
    const instOpts = config.instrumentation.getInstrumenterOpts();
    const sourceMapStore = libSourceMaps.createSourceMapStore({});
    let fakeRequire;

    instOpts.coverageVariable = coverageVar;
    instOpts.sourceMapUrlCallback = function(file, url) {
        sourceMapStore.registerURL(file, url);
    };
    const coverageFinderFn = function() {
        return global[coverageVar];
    };
    const instrumenter = libInstrument.createInstrumenter(instOpts);
    const transformer = function(code, options) {
        const filename =
            typeof options === 'string' ? options : options.filename;
        return instrumenter.instrumentSync(code, filename);
    };
    const runInContextTransformer = function(code, options) {
export function createReport(): void {
  const iLibCoverage = require('istanbul-lib-coverage');
  const iLibSourceMaps = require('istanbul-lib-source-maps');
  const iLibReport = require('istanbul-lib-report');
  const iReports = require('istanbul-reports');

  const global = new Function('return this')();

  const mapStore = iLibSourceMaps.createSourceMapStore();
  const coverageMap = iLibCoverage.createCoverageMap(global.__coverage__);
  const transformed = mapStore.transformCoverage(coverageMap);

  const tree = iLibReport.summarizers.flat(transformed.map);
  const context = iLibReport.createContext({
    dir: path.resolve(REPO_ROOT, `coverage`)
  });

  const reports = [iReports.create('lcov')];
  reports.forEach(report => tree.visit(report, context));
}
function processCoverage( report ) {
		grunt.log.ok( "Processing coverage data..." );

		const dir = grunt.config( "dir.tmp_coverage" );
		const watermarks = grunt.config( "coverage.watermarks" );
		const reporters = grunt.config( "coverage.reporters" );

		const libCoverage = require( "istanbul-lib-coverage" );
		const libReport = require( "istanbul-lib-report" );
		const libSourceMaps = require( "istanbul-lib-source-maps" );
		const reports = require( "istanbul-reports" );

		const map = libCoverage.createCoverageMap( report );
		const sourceMapCache = libSourceMaps.createSourceMapStore();
		map.data = sourceMapCache.transformCoverage(
			libCoverage.createCoverageMap( map.data )
		).map.data;
		const tree = libReport.summarizers.pkg( map );
		const context = libReport.createContext({ dir, watermarks });

		reporters.forEach( ({ name, options }) => {
			const report = reports.create( name, options );
			tree.visit( report, context );
			grunt.log.ok( `Coverage reporter run: ${name}` );
		});
	}
public mapCoverage(data: any) {
    if (!data) {
      this.coverage = {
        statement: 0,
        branch: 0,
        function: 0,
        line: 0
      };

      return;
    }

    const sourceMapStore = createSourceMapStore();
    const coverageMap = createCoverageMap(data);
    const transformed = sourceMapStore.transformCoverage(coverageMap);
    const coverageSummary = transformed.map.getCoverageSummary();

    const statementCoverage = coverageSummary.statements.pct as any;
    const branchCoverage = coverageSummary.branches.pct as any;
    const functionCoverage = coverageSummary.functions.pct as any;
    const lineCoverage = coverageSummary.lines.pct as any;

    this.coverage = {
      statement: statementCoverage === "Unknown" ? 0 : statementCoverage,
      branch: branchCoverage === "Unknown" ? 0 : branchCoverage,
      function: functionCoverage === "Unknown" ? 0 : functionCoverage,
      line: lineCoverage === "Unknown" ? 0 : lineCoverage
    };
  }
constructor() {
    this.sourceMapStore = createSourceMapStore();
    this.transformedCoverageMap = createCoverageMap();
  }
async reportCoverage(coverageReport, environment) {
        this.coverageMap.merge(coverageReport);
        const coverageMap = createCoverageMap(coverageReport);
        const remappedCoverageMap = await createSourceMapStore().transformCoverage(coverageMap);
        const reportDir = this.coverageDir.directory(environment);
        const context = createContext({
            dir: reportDir.path,
            watermarks: getDefaultWatermarks(),
            coverageMap: remappedCoverageMap,
        });
        createReporter('html').execute(context);
        createReporter('lcovonly').execute(context);
    }
}
constructor(rootPath: string) {
    this.sourceMapStore = createSourceMapStore();
    this.transformedCoverageMap = createCoverageMap();
  }
module.exports = function createTransformerFn ({
  root,
  coverageVariable,
  transformerCacheVariable,
  sourceMapCacheVariable,
  cacheDir,
  disableCache = false,
  ext = '.js',
  verbose = false
}) {
  const transformerCache = global[transformerCacheVariable] = global[transformerCacheVariable] || {};
  const sourceMapCache = global[sourceMapCacheVariable] = global[sourceMapCacheVariable] || createSourceMapStore();

  const instrumenter = createInstrumenter({
    autoWrap: true,
    coverageVariable,
    embedSource: true,
    noCompact: true,
    preserveComments: true
  });
  const instrument = instrumenter.instrumentSync.bind(instrumenter);

  return function transform (code, file) {
    let instrumentedCode, hasChanged, cacheFile, codeHash;

    cacheFile = resolve(cacheDir, relative(root, file)) + '.json';
    codeHash = md5Hex(code);
browsers.forEach((browser: any) => {

                    const coverage = that.coverageMap.get(browser);
                    const coverageMap = istanbulCoverage.createCoverageMap();
                    coverageMap.merge(coverage);

                    const sourceMapStore = istanbulSourceMaps.createSourceMapStore();
                    const remappedCoverageMap = sourceMapStore.transformCoverage(coverageMap).map;

                    const tree = istanbulReport.summarizers.pkg(remappedCoverageMap);

                    if (results && config.hasCoverageThreshold && !threshold.check(browser, remappedCoverageMap)) {
                        results.exitCode = 1;
                    }

                    Object.keys(config.reports).forEach((reportType: any) => {

                        const destination = that.getReportDestination(browser, config.reports, reportType);

                        if (destination) {
                            that.log.debug("Writing coverage to %s", destination);
                        }
                        const context = istanbulReport.createContext( { dir: destination } );

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