don't copy state anymore

docs/components.md

@@ -77,31 +77,11 @@ To learn more about lifecycle methods, [see the lifecycle methods page](lifecycl
 
 Like all virtual DOM nodes, component vnodes can have state. Component state is useful for supporting object-oriented architectures, for encapsulation and for separation of concerns.
 
-The state of a component can be accessed three ways: as a blueprint at initialization, via `vnode.state` and via the `this` keyword in component methods.
-
-#### At initialization
-
-Any property attached to the component object is deep-cloned for every instance of the component. This allows simple state initialization.
-
-In the example below, `data` is a property of the `Input` component's state object.
-
-```javascript
-var ComponentWithInitialState = {
-	data: "Initial content",
-	view: function(vnode) {
-		return m("div", vnode.state.data)
-	}
-}
-
-m(ComponentWithInitialState)
-
-// Equivalent HTML
-// <div>Initial content</div>
-```
+The state of a component can be accessed two ways: via `vnode.state` and via the `this` keyword in component methods.
 
 #### Via vnode.state
 
-State can also be accessed via the `vnode.state` property, which is available to all lifecycle methods as well as the `view` method of a component.
+State can be accessed via the `vnode.state` property, which is available to all lifecycle methods as well as the `view` method of a component.
 
 ```javascript
 var ComponentWithDynamicState = {

examples/editor-bundle/index.html

@@ -19,7 +19,9 @@ h1,h2,h3,h4,h5,h6,p {margin:0 0 10px;}
 var m = require("../../mithril")
 
 var Editor = {
-	data: "# Markdown Editor\n\nType on the left panel and see the result on the right panel",
+	oninit: function() {
+		this.data = "# Markdown Editor\n\nType on the left panel and see the result on the right panel"
+	},
 	view: function(vnode) {
 		return [
 			m("textarea.editor-input", {oninput: function(e) {vnode.state.data = e.target.value}}, vnode.state.data),

examples/editor/index.html

@@ -25,7 +25,9 @@ renderer.setEventCallback(run)
 var trust = require("../../render/trust")
 
 var Editor = {
-	data: "# Markdown Editor\n\nType on the left panel and see the result on the right panel",
+	oninit: function() {
+		this.data = "# Markdown Editor\n\nType on the left panel and see the result on the right panel"
+	},
 	view: function(vnode) {
 		return [
 			m("textarea.editor-input", {oninput: function(e) {vnode.state.data = e.target.value}}, vnode.state.data),

render/tests/test-component.js

@@ -576,22 +576,4 @@ o.spec("component", function() {
 			o(vnode.dom).notEquals(updated.dom)
 		})
 	})
-	o.spec("state", function() {
-		o("deep copies state", function() {
-			var called = 0
-			var component = {
-				data: [{a: 1}],
-				oninit: init,
-				view: function() {
-					return ""
-				}
-			}
-
-			render(root, [{tag: component}])
-
-			function init(vnode) {
-				o(vnode.state.data).deepEquals([{a: 1}])
-			}
-		})
-	})
 })