Fix elements

Author: benmccann

src/core/core.element.js

@@ -5,12 +5,14 @@ import {isNumber} from '../helpers/helpers.math';
 
 class Element {
 
-	constructor(configuration) {
-		if (configuration) {
-			extend(this, configuration);
-		}
+	constructor(cfg) {
+		this.x = undefined;
+		this.y = undefined;
+		this.hidden = undefined;
 
-		// this.hidden = false; we assume Element has an attribute called hidden, but do not initialize to save memory
+		if (cfg) {
+			extend(this, cfg);
+		}
 	}
 
 	tooltipPosition() {

src/elements/element.arc.js

@@ -2,6 +2,7 @@
 
 import defaults from '../core/core.defaults';
 import Element from '../core/core.element';
+import {extend} from '../helpers/helpers.core';
 import {getAngleFromPoint} from '../helpers/helpers.math';
 const TAU = Math.PI * 2;
 
@@ -92,8 +93,19 @@ function drawBorder(ctx, vm, arc) {
 
 class Arc extends Element {
 
-	constructor(props) {
-		super(props);
+	constructor(cfg) {
+		super();
+
+		this.options = undefined;
+		this.circumference = undefined;
+		this.startAngle = undefined;
+		this.endAngle = undefined;
+		this.innerRadius = undefined;
+		this.outerRadius = undefined;
+
+		if (cfg) {
+			extend(this, cfg);
+		}
 	}
 
 	inRange(chartX, chartY) {

src/elements/element.line.js

@@ -2,6 +2,7 @@
 
 import defaults from '../core/core.defaults';
 import Element from '../core/core.element';
+import {extend} from '../helpers/helpers.core';
 import {_bezierInterpolation, _pointInLine, _steppedInterpolation} from '../helpers/helpers.interpolation';
 import {_computeSegments, _boundSegments} from '../helpers/helpers.segment';
 import {_steppedLineTo, _bezierCurveTo} from '../helpers/helpers.canvas';
@@ -192,8 +193,15 @@ function _getInterpolationMethod(options) {
 
 class Line extends Element {
 
-	constructor(props) {
-		super(props);
+	constructor(cfg) {
+		super();
+
+		this.options = undefined;
+		this._loop = undefined;
+
+		if (cfg) {
+			extend(this, cfg);
+		}
 	}
 
 	updateControlPoints(chartArea) {

src/elements/element.point.js

@@ -22,8 +22,15 @@ defaults._set('elements', {
 
 class Point extends Element {
 
-	constructor(props) {
-		super(props);
+	constructor(cfg) {
+		super();
+
+		this.options = undefined;
+		this.skip = undefined;
+
+		if (cfg) {
+			helpers.extend(this, cfg);
+		}
 	}
 
 	inRange(mouseX, mouseY) {

src/elements/element.rectangle.js

@@ -130,8 +130,18 @@ function inRange(bar, x, y) {
 
 class Rectangle extends Element {
 
-	constructor(props) {
-		super(props);
+	constructor(cfg) {
+		super();
+
+		this.options = undefined;
+		this.horizontal = undefined;
+		this.base = undefined;
+		this.width = undefined;
+		this.height = undefined;
+
+		if (cfg) {
+			helpers.extend(this, cfg);
+		}
 	}
 
 	draw(ctx) {