build/lib/tsb/transpiler.ts/SwcTranspiler/constructor
class SwcTranspiler:	constructor(
		private readonly _logFn: (topic: string, message: string) => void,
		private readonly _onError: (err: any) => void,
		configFilePath: string,
		private readonly _cmdLine: ts.ParsedCommandLine
	) {
		_logFn('Transpile', `will use SWC to transpile source files`);
		this._outputFileNames = new OutputFileNameOracle(_cmdLine, configFilePath);
	}