svelte/test/js/samples/each-block-changed-check/expected-bundle.js

function noop() {}

function assign(tar, src) {
	for (var k in src) tar[k] = src[k];
	return tar;
}

function append(target, node) {
	target.appendChild(node);
}

function insert(target, node, anchor) {
	target.insertBefore(node, anchor);
}

function detachNode(node) {
	node.parentNode.removeChild(node);
}

function detachAfter(before) {
	while (before.nextSibling) {
		before.parentNode.removeChild(before.nextSibling);
	}
}

function destroyEach(iterations, detach) {
	for (var i = 0; i < iterations.length; i += 1) {
		if (iterations[i]) iterations[i].d(detach);
	}
}

function createElement(name) {
	return document.createElement(name);
}

function createText(data) {
	return document.createTextNode(data);
}

function setData(text, data) {
	text.data = '' + data;
}

function blankObject() {
	return Object.create(null);
}

function destroy(detach) {
	this.destroy = noop;
	this.fire('destroy');
	this.set = noop;

	this._fragment.d(detach !== false);
	this._fragment = null;
	this._state = {};
}

function _differs(a, b) {
	return a != a ? b == b : a !== b || ((a && typeof a === 'object') || typeof a === 'function');
}

function fire(eventName, data) {
	var handlers =
		eventName in this._handlers && this._handlers[eventName].slice();
	if (!handlers) return;

	for (var i = 0; i < handlers.length; i += 1) {
		var handler = handlers[i];

		if (!handler.__calling) {
			try {
				handler.__calling = true;
				handler.call(this, data);
			} finally {
				handler.__calling = false;
			}
		}
	}
}

function get() {
	return this._state;
}

function init(component, options) {
	component._handlers = blankObject();
	component._bind = options._bind;

	component.options = options;
	component.root = options.root || component;
	component.store = options.store || component.root.store;
}

function on(eventName, handler) {
	var handlers = this._handlers[eventName] || (this._handlers[eventName] = []);
	handlers.push(handler);

	return {
		cancel: function() {
			var index = handlers.indexOf(handler);
			if (~index) handlers.splice(index, 1);
		}
	};
}

function set(newState) {
	this._set(assign({}, newState));
	if (this.root._lock) return;
	this.root._lock = true;
	callAll(this.root._beforecreate);
	callAll(this.root._oncreate);
	callAll(this.root._aftercreate);
	this.root._lock = false;
}

function _set(newState) {
	var oldState = this._state,
		changed = {},
		dirty = false;

	for (var key in newState) {
		if (this._differs(newState[key], oldState[key])) changed[key] = dirty = true;
	}
	if (!dirty) return;

	this._state = assign(assign({}, oldState), newState);
	this._recompute(changed, this._state);
	if (this._bind) this._bind(changed, this._state);

	if (this._fragment) {
		this.fire("state", { changed: changed, current: this._state, previous: oldState });
		this._fragment.p(changed, this._state);
		this.fire("update", { changed: changed, current: this._state, previous: oldState });
	}
}

function callAll(fns) {
	while (fns && fns.length) fns.shift()();
}

function _mount(target, anchor) {
	this._fragment[this._fragment.i ? 'i' : 'm'](target, anchor || null);
}

var proto = {
	destroy,
	get,
	fire,
	on,
	set,
	_recompute: noop,
	_set,
	_mount,
	_differs
};

/* generated by Svelte vX.Y.Z */

function create_main_fragment(component, ctx) {
	var text, p, text_1;

	var each_value = ctx.comments;

	var each_blocks = [];

	for (var i = 0; i < each_value.length; i += 1) {
		each_blocks[i] = create_each_block(component, get_each_context(ctx, each_value, i));
	}

	return {
		c() {
			for (var i = 0; i < each_blocks.length; i += 1) {
				each_blocks[i].c();
			}

			text = createText("\n\n");
			p = createElement("p");
			text_1 = createText(ctx.foo);
		},

		m(target, anchor) {
			for (var i = 0; i < each_blocks.length; i += 1) {
				each_blocks[i].m(target, anchor);
			}

			insert(target, text, anchor);
			insert(target, p, anchor);
			append(p, text_1);
		},

		p(changed, ctx) {
			if (changed.comments || changed.elapsed || changed.time) {
				each_value = ctx.comments;

				for (var i = 0; i < each_value.length; i += 1) {
					const child_ctx = get_each_context(ctx, each_value, i);

					if (each_blocks[i]) {
						each_blocks[i].p(changed, child_ctx);
					} else {
						each_blocks[i] = create_each_block(component, child_ctx);
						each_blocks[i].c();
						each_blocks[i].m(text.parentNode, text);
					}
				}

				for (; i < each_blocks.length; i += 1) {
					each_blocks[i].d(1);
				}
				each_blocks.length = each_value.length;
			}

			if (changed.foo) {
				setData(text_1, ctx.foo);
			}
		},

		d(detach) {
			destroyEach(each_blocks, detach);

			if (detach) {
				detachNode(text);
				detachNode(p);
			}
		}
	};
}

// (1:0) {#each comments as comment, i}
function create_each_block(component, ctx) {
	var div, strong, text, text_1, span, text_2_value = ctx.comment.author, text_2, text_3, text_4_value = ctx.elapsed(ctx.comment.time, ctx.time), text_4, text_5, text_6, raw_value = ctx.comment.html, raw_before;

	return {
		c() {
			div = createElement("div");
			strong = createElement("strong");
			text = createText(ctx.i);
			text_1 = createText("\n\n\t\t");
			span = createElement("span");
			text_2 = createText(text_2_value);
			text_3 = createText(" wrote ");
			text_4 = createText(text_4_value);
			text_5 = createText(" ago:");
			text_6 = createText("\n\n\t\t");
			raw_before = createElement('noscript');
			span.className = "meta";
			div.className = "comment";
		},

		m(target, anchor) {
			insert(target, div, anchor);
			append(div, strong);
			append(strong, text);
			append(div, text_1);
			append(div, span);
			append(span, text_2);
			append(span, text_3);
			append(span, text_4);
			append(span, text_5);
			append(div, text_6);
			append(div, raw_before);
			raw_before.insertAdjacentHTML("afterend", raw_value);
		},

		p(changed, ctx) {
			if ((changed.comments) && text_2_value !== (text_2_value = ctx.comment.author)) {
				setData(text_2, text_2_value);
			}

			if ((changed.elapsed || changed.comments || changed.time) && text_4_value !== (text_4_value = ctx.elapsed(ctx.comment.time, ctx.time))) {
				setData(text_4, text_4_value);
			}

			if ((changed.comments) && raw_value !== (raw_value = ctx.comment.html)) {
				detachAfter(raw_before);
				raw_before.insertAdjacentHTML("afterend", raw_value);
			}
		},

		d(detach) {
			if (detach) {
				detachNode(div);
			}
		}
	};
}

function get_each_context(ctx, list, i) {
	const child_ctx = Object.create(ctx);
	child_ctx.comment = list[i];
	child_ctx.each_value = list;
	child_ctx.i = i;
	return child_ctx;
}

function SvelteComponent(options) {
	init(this, options);
	this._state = assign({}, options.data);
	this._intro = true;

	this._fragment = create_main_fragment(this, this._state);

	if (options.target) {
		this._fragment.c();
		this._mount(options.target, options.anchor);
	}
}

assign(SvelteComponent.prototype, proto);

export default SvelteComponent;