Method constructor

tools/xsbug-log/xsbug-machine.js:29–62

(input, output)

class Machine {
	constructor(input, output) {
		const parser = new Saxophone()
		parser.on('tagopen', ({ name, attrs, isSelfClosing }) => {
			this.onStartElement(name, Saxophone.parseAttrs(attrs));
			if (isSelfClosing)
				this.onEndElement(name);
		});
		parser.on('tagclose', ({ name }) => {
			this.onEndElement(name);
		});
		parser.on('text', ({ contents }) => {
			this.onCharacterData(Saxophone.parseEntities(contents));
		});
		parser.on('cdata', ({ contents }) => {
			this.onCharacterData(contents);
		});
		parser.on('error', err => {
			this.onError(err);
		});
		input.pipe(parser);
		this.encoder = new TextEncoder();
		this.instruments = [];
		this.output = output;
		this.profile = new Profile();
		this.profiling = false;

		input.on('error', (err) => {
			input.unpipe(parser);
		});

		input.on('close', () => {
			input.unpipe(parser);
		});
	}
	
	onStartElement(name, attributes) {
		const parent = this.current;