Current Dev State

static/js/ketcher2/node_modules/preact/src/h.js

@@ -0,0 +1,60 @@
+import { VNode } from './vnode';
+import options from './options';
+
+
+const stack = [];
+
+const EMPTY_CHILDREN = [];
+
+/** JSX/hyperscript reviver
+*	Benchmarks: https://esbench.com/bench/57ee8f8e330ab09900a1a1a0
+ *	@see http://jasonformat.com/wtf-is-jsx
+ *	@public
+ */
+export function h(nodeName, attributes) {
+	let children=EMPTY_CHILDREN, lastSimple, child, simple, i;
+	for (i=arguments.length; i-- > 2; ) {
+		stack.push(arguments[i]);
+	}
+	if (attributes && attributes.children!=null) {
+		if (!stack.length) stack.push(attributes.children);
+		delete attributes.children;
+	}
+	while (stack.length) {
+		if ((child = stack.pop()) && child.pop!==undefined) {
+			for (i=child.length; i--; ) stack.push(child[i]);
+		}
+		else {
+			if (child===true || child===false) child = null;
+
+			if ((simple = typeof nodeName!=='function')) {
+				if (child==null) child = '';
+				else if (typeof child==='number') child = String(child);
+				else if (typeof child!=='string') simple = false;
+			}
+
+			if (simple && lastSimple) {
+				children[children.length-1] += child;
+			}
+			else if (children===EMPTY_CHILDREN) {
+				children = [child];
+			}
+			else {
+				children.push(child);
+			}
+
+			lastSimple = simple;
+		}
+	}
+
+	let p = new VNode();
+	p.nodeName = nodeName;
+	p.children = children;
+	p.attributes = attributes==null ? undefined : attributes;
+	p.key = attributes==null ? undefined : attributes.key;
+
+	// if a "vnode hook" is defined, pass every created VNode to it
+	if (options.vnode!==undefined) options.vnode(p);
+
+	return p;
+}