tcomb - npm Package Compare versions

Comparing version 2.5.0 to 2.5.1

CHANGELOG.md

@@ -15,2 +15,7 @@ # Changelog
 
+## v2.5.1
+
+- **Internal**
+  - `t.update` should not change the reference when no changes occur, fix #153
+
 ## v2.5.0
@@ -17,0 +22,0 @@

index.js

@@ -167,2 +167,3 @@ /*! @preserve
   var value = getShallowCopy(instance);
+  var isChanged = false;
   for (var k in spec) {
@@ -174,7 +175,9 @@ if (spec.hasOwnProperty(k)) {
       else {
-        value[k] = update(value[k], spec[k]);
+        var newValue = update(value[k], spec[k]);
+        isChanged = isChanged || ( newValue !== value[k] );
+        value[k] = newValue;
       }
     }
   }
-  return value;
+  return isChanged ? value : instance;
 }
@@ -425,2 +428,5 @@
     var type = Union.dispatch(value);
+    if (!type && Union.is(value)) {
+      return value;
+    }
 
@@ -427,0 +433,0 @@ if (process.env.NODE_ENV !== 'production') {

package.json

 {
   "name": "tcomb",
-  "version": "2.5.0",
+  "version": "2.5.1",
   "description": "Type checking and DDD for JavaScript",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -91,3 +91,3 @@ [![build status](https://img.shields.io/travis/gcanti/tcomb/master.svg?style=flat-square)](https://travis-ci.org/gcanti/tcomb)
 
-Instances are immutables using `Object.freeze`. This means you can use standard JavaScript objects and arrays. You don't have to change how you normally code. You can update an immutable instance with the provided `update(instance, spec)` function:
+Instances are immutable using `Object.freeze`. This means you can use standard JavaScript objects and arrays. You don't have to change how you normally code. You can update an immutable instance with the provided `update(instance, spec)` function:
 
@@ -94,0 +94,0 @@ ```js

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Improved metrics

Total package byte prevSize

59762

increased by0.52%

Lines of code

845

increased by0.72%

No dependency changes