understream - npm Package Compare versions

Comparing version 0.4.5 to 0.4.6

lib-js/understream.js

 // Generated by CoffeeScript 1.6.3
-var ArrayStream, DevNull, Readable, Understream, Writable, construct, debug, domain, fs, _,
+var ArrayStream, DevNull, Readable, Understream, Writable, construct, debug, domain, fs, implements_interface, _,
   __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
@@ -19,2 +19,11 @@ __hasProp = {}.hasOwnProperty,
 
+implements_interface = function(instance, klass) {
+  if (!_.isObject(instance)) {
+    return false;
+  }
+  return _.all(_.keys(klass.prototype), function(key) {
+    return key in instance;
+  });
+};
+
 construct = function(constructor, args) {
@@ -82,6 +91,8 @@ var F;
       this.read_streams = [this.read_stream];
-    } else if (this.read_stream instanceof Readable) {
+    } else if (implements_interface(this.read_stream, Readable)) {
       this.read_streams = [this.read_stream];
     } else if (this.read_stream == null) {
       this.read_streams = [];
+    } else {
+      throw new Error('Understream expects a readable stream, an array, or nothing');
     }
@@ -152,3 +163,3 @@ }
     if (name == null) {
-      name = ReadableStreamKlass.name;
+      name = Readable.name;
     }
@@ -155,0 +166,0 @@ if (fn == null) {

package.json

 {
   "name": "understream",
-  "version": "0.4.5",
+  "version": "0.4.6",
   "description": "stream helpers",
@@ -5,0 +5,0 @@ "engines": {

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Improved metrics

Total package byte prevSize

72513

increased by1.37%

Lines of code

830

increased by1.22%

No dependency changes