SwitchCase (node) { const line = node.loc.start.line const caseContent = node.test ? node.test.extra ? node.test.extra.raw : `${node.test.value}` : 'default' const mutantId = ++mutodeInstance.mutants const log = `MUTANT ${mutantId}:\tRSCM Lines ${node.loc.start.line}-${node.loc.end.line}: Commented case ${caseContent}` debug(log) mutodeInstance.mutantLog(log) const linesCopy = lines.slice() for (let i = line - 1; i < node.loc.end.line; i++) { linesCopy[i] = `// ${linesCopy[i]}` } const contentToWrite = linesCopy.join('\n') queue.push(mutantRunner({ mutodeInstance, filePath, contentToWrite, log })) }