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Edit File Size: 2.43 KB

//lib/node_modules/npm/node_modules/end-of-stream/index.js

Text Base64

var once = require('once');

var noop = function() {};

var isRequest = function(stream) {
	return stream.setHeader && typeof stream.abort === 'function';
};

var isChildProcess = function(stream) {
	return stream.stdio && Array.isArray(stream.stdio) && stream.stdio.length === 3
};

var eos = function(stream, opts, callback) {
	if (typeof opts === 'function') return eos(stream, null, opts);
	if (!opts) opts = {};

callback = once(callback || noop);

var ws = stream._writableState;
	var rs = stream._readableState;
	var readable = opts.readable || (opts.readable !== false && stream.readable);
	var writable = opts.writable || (opts.writable !== false && stream.writable);

var onlegacyfinish = function() {
		if (!stream.writable) onfinish();
	};

var onfinish = function() {
		writable = false;
		if (!readable) callback.call(stream);
	};

var onend = function() {
		readable = false;
		if (!writable) callback.call(stream);
	};

var onexit = function(exitCode) {
		callback.call(stream, exitCode ? new Error('exited with error code: ' + exitCode) : null);
	};

var onerror = function(err) {
		callback.call(stream, err);
	};

var onclose = function() {
		if (readable && !(rs && rs.ended)) return callback.call(stream, new Error('premature close'));
		if (writable && !(ws && ws.ended)) return callback.call(stream, new Error('premature close'));
	};

var onrequest = function() {
		stream.req.on('finish', onfinish);
	};

if (isRequest(stream)) {
		stream.on('complete', onfinish);
		stream.on('abort', onclose);
		if (stream.req) onrequest();
		else stream.on('request', onrequest);
	} else if (writable && !ws) { // legacy streams
		stream.on('end', onlegacyfinish);
		stream.on('close', onlegacyfinish);
	}

if (isChildProcess(stream)) stream.on('exit', onexit);

stream.on('end', onend);
	stream.on('finish', onfinish);
	if (opts.error !== false) stream.on('error', onerror);
	stream.on('close', onclose);

return function() {
		stream.removeListener('complete', onfinish);
		stream.removeListener('abort', onclose);
		stream.removeListener('request', onrequest);
		if (stream.req) stream.req.removeListener('finish', onfinish);
		stream.removeListener('end', onlegacyfinish);
		stream.removeListener('close', onlegacyfinish);
		stream.removeListener('finish', onfinish);
		stream.removeListener('exit', onexit);
		stream.removeListener('end', onend);
		stream.removeListener('error', onerror);
		stream.removeListener('close', onclose);
	};
};

module.exports = eos;

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Name	Size	Perms	Modified	Actions
index.js	2.43 KB	lrw-r--r--	2021-03-10 14:36:37	Edit Download recursive recursive
LICENSE	1.05 KB	lrw-r--r--	2021-03-10 14:36:37	Edit Download recursive recursive
package.json	1.84 KB	lrw-r--r--	2021-03-10 14:36:37	Edit Download recursive recursive
README.md	1.53 KB	lrw-r--r--	2021-03-10 14:36:37	Edit Download recursive recursive

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