diff --git a/.gitignore b/.gitignore
index 3c3629e..2f984cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 node_modules
+.aider*
diff --git a/public/demo.js b/public/demo.js
index 0986f57..0cf85cc 100755
--- a/public/demo.js
+++ b/public/demo.js
@@ -412,11 +412,12 @@ function _if(el, exp, ctx, component, componentProps, allProps) {
   let block;
   let activeBranchIndex = -1;
   const removeActiveBlock = () => {
-    if (block) {
-      parent.insertBefore(anchor, block.element);
-      block.remove();
-      block = void 0;
+    if (!block) {
+      return;
     }
+    parent.insertBefore(anchor, block.element);
+    block.remove();
+    block = void 0;
   };
   ctx.effect(() => {
     for (let i = 0; i < branches.length; i++) {
@@ -730,18 +731,6 @@ var $computed = Symbol("computed");
 function isComputed(value) {
   return isObject(value) && value[$computed];
 }
-function computed(getter) {
-  const ref2 = {
-    get value() {
-      return getter();
-    },
-    [$computed]: true
-  };
-  effect(() => {
-    getter();
-  });
-  return ref2;
-}
 
 // src/reactivity/ref.ts
 var $ref = Symbol("ref");
@@ -859,7 +848,7 @@ var App2 = class {
   }
   mount(component, target = "body", props = {}) {
     const root = typeof target === "string" ? document.querySelector(target) : target;
-    const display = root.style.display;
+    const { display } = root.style;
     root.style.display = "none";
     this._mount(component, root, props);
     root.style.display = display;
@@ -873,7 +862,7 @@ var App2 = class {
     }
     parentContext.scope.$isRef = isRef;
     parentContext.scope.$isComputed = isComputed;
-    const block = new Block({
+    return new Block({
       app: this,
       element: target,
       parentContext,
@@ -882,7 +871,6 @@ var App2 = class {
       componentProps: props,
       replacementType: "replaceChildren"
     });
-    return block;
   }
   unmount() {
     this.root.teardown();
@@ -890,7 +878,7 @@ var App2 = class {
 };
 function createContext({ parentContext, app: app2 }) {
   const context = {
-    app: app2 ? app2 : parentContext && parentContext.app ? parentContext.app : null,
+    app: app2 ? app2 : parentContext?.app ? parentContext.app : null,
     scope: parentContext ? parentContext.scope : reactive({}),
     blocks: [],
     effects: [],
@@ -944,7 +932,7 @@ function mergeProps(props, defaultProps) {
   });
   return merged;
 }
-var current = { componentBlock: void 0 };
+var current2 = { componentBlock: void 0 };
 var Block = class {
   element;
   context;
@@ -962,17 +950,15 @@ var Block = class {
     this.isFragment = opts.element instanceof HTMLTemplateElement;
     this.parentComponentBlock = opts.parentComponentBlock;
     if (opts.component) {
-      current.componentBlock = this;
+      current2.componentBlock = this;
       this.element = stringToElement(opts.component.template);
+    } else if (this.isFragment) {
+      this.element = opts.element.content.cloneNode(true);
+    } else if (typeof opts.element === "string") {
+      this.element = stringToElement(opts.element);
     } else {
-      if (this.isFragment) {
-        this.element = opts.element.content.cloneNode(true);
-      } else if (typeof opts.element === "string") {
-        this.element = stringToElement(opts.element);
-      } else {
-        this.element = opts.element.cloneNode(true);
-        opts.element.replaceWith(this.element);
-      }
+      this.element = opts.element.cloneNode(true);
+      opts.element.replaceWith(this.element);
     }
     if (opts.isRoot) {
       this.context = opts.parentContext;
@@ -1026,10 +1012,8 @@ var Block = class {
         if (opts.element instanceof HTMLElement) {
           opts.element.replaceWith(this.element);
         }
-      } else {
-        if (opts.element instanceof HTMLElement) {
-          opts.element.replaceChildren(this.element);
-        }
+      } else if (opts.element instanceof HTMLElement) {
+        opts.element.replaceChildren(this.element);
       }
     }
   }
@@ -1111,112 +1095,111 @@ function walk(node, context) {
     new InterpolationDirective({ element: node, context });
     return;
   }
-  if (isElement(node)) {
-    let exp;
-    const handleDirectives = (node2, context2, component, componentProps, allProps) => {
-      if (warnInvalidDirectives(node2, [":if", ":for"])) return;
-      if (warnInvalidDirectives(node2, [":for", ":teleport"])) return;
-      if (warnInvalidDirectives(node2, [":if", ":teleport"])) return;
-      if (exp = checkAndRemoveAttribute(node2, ":scope")) {
-        const scope = evalGet(context2.scope, exp, node2);
-        if (typeof scope === "object") {
-          Object.assign(context2.scope, scope);
-        }
-      }
-      if (exp = checkAndRemoveAttribute(node2, ":if")) {
-        return _if(node2, exp, context2, component, componentProps, allProps);
-      }
-      if (exp = checkAndRemoveAttribute(node2, ":for")) {
-        return _for(node2, exp, context2, component, componentProps, allProps);
-      }
-      if (exp = checkAndRemoveAttribute(node2, ":teleport")) {
-        return _teleport(node2, exp, context2, component, componentProps, allProps);
-      }
-      if (exp = checkAndRemoveAttribute(node2, ":show")) {
-        new ShowDirective({ element: node2, context: context2, expression: exp });
-      }
-      if (exp = checkAndRemoveAttribute(node2, ":ref")) {
-        context2.scope[exp].value = node2;
-      }
-      if (exp = checkAndRemoveAttribute(node2, ":value")) {
-        new ValueDirective({ element: node2, context: context2, expression: exp });
-      }
-      if (exp = checkAndRemoveAttribute(node2, ":html")) {
-        const htmlExp = exp;
-        context2.effect(() => {
-          const result = evalGet(context2.scope, htmlExp, node2);
-          if (result instanceof Element) {
-            node2.replaceChildren();
-            node2.append(result);
-          } else {
-            node2.innerHTML = result;
-          }
-        });
-      }
-      if (exp = checkAndRemoveAttribute(node2, ":text")) {
-        const textExp = exp;
-        context2.effect(() => {
-          node2.textContent = toDisplayString(evalGet(context2.scope, textExp, node2));
-        });
-      }
-    };
-    const processAttributes = (node2, component) => {
-      return Array.from(node2.attributes).filter((attr) => isSpreadProp(attr.name) || isMirrorProp(attr.name) || isRegularProp(attr.name) && componentHasPropByName(extractPropName(attr.name), component)).map((attr) => ({
-        isMirror: isMirrorProp(attr.name),
-        isSpread: isSpreadProp(attr.name),
-        isBind: attr.name.includes("bind"),
-        originalName: attr.name,
-        extractedName: extractPropName(attr.name),
-        exp: attr.value,
-        value: isMirrorProp(attr.name) ? evalGet(context.scope, extractPropName(attr.name), node2) : attr.value ? evalGet(context.scope, attr.value, node2) : void 0
-      }));
-    };
-    if (isComponent(node, context)) {
-      const component = context.app.getComponent(node.tagName.toLowerCase());
-      const allProps = processAttributes(node, component);
-      const componentProps = allProps.reduce((acc, { isSpread, isMirror, extractedName, value }) => {
-        if (isSpread) {
-          const spread = evalGet(context.scope, extractedName, node);
-          if (isObject(spread)) Object.assign(acc, spread);
-        } else if (isMirror) {
-          acc[extractedName] = evalGet(context.scope, extractedName, node);
-        } else {
-          acc[extractedName] = value;
-        }
-        return acc;
-      }, {});
-      const next2 = handleDirectives(node, context, component, componentProps, allProps);
-      if (next2) return next2;
-      const templates = findTemplateNodes(node);
-      return new Block({
-        element: node,
-        app: current.componentBlock.context.app,
-        // parentContext: context,
-        component,
-        replacementType: "replace",
-        parentComponentBlock: current.componentBlock,
-        templates,
-        componentProps,
-        allProps
-      }).element;
-    }
-    const next = handleDirectives(node, context);
-    if (next) return next;
-    Array.from(node.attributes).forEach((attr) => {
-      if (isPropAttribute(attr.name)) {
-        new AttributeDirective({ element: node, context, attr });
-      }
-      if (isEventAttribute(attr.name)) {
-        new EventDirective({ element: node, context, attr });
-      }
-    });
-    walkChildren(node, context);
+  if (!isElement(node)) {
+    return;
   }
+  let exp;
+  const handleDirectives = (node2, context2, component, componentProps, allProps) => {
+    if (warnInvalidDirectives(node2, [":if", ":for"])) return;
+    if (warnInvalidDirectives(node2, [":for", ":teleport"])) return;
+    if (warnInvalidDirectives(node2, [":if", ":teleport"])) return;
+    if (exp = checkAndRemoveAttribute(node2, ":scope")) {
+      const scope = evalGet(context2.scope, exp, node2);
+      if (typeof scope === "object") {
+        Object.assign(context2.scope, scope);
+      }
+    }
+    if (exp = checkAndRemoveAttribute(node2, ":if")) {
+      return _if(node2, exp, context2, component, componentProps, allProps);
+    }
+    if (exp = checkAndRemoveAttribute(node2, ":for")) {
+      return _for(node2, exp, context2, component, componentProps, allProps);
+    }
+    if (exp = checkAndRemoveAttribute(node2, ":teleport")) {
+      return _teleport(node2, exp, context2, component, componentProps, allProps);
+    }
+    if (exp = checkAndRemoveAttribute(node2, ":show")) {
+      new ShowDirective({ element: node2, context: context2, expression: exp });
+    }
+    if (exp = checkAndRemoveAttribute(node2, ":ref")) {
+      context2.scope[exp].value = node2;
+    }
+    if (exp = checkAndRemoveAttribute(node2, ":value")) {
+      new ValueDirective({ element: node2, context: context2, expression: exp });
+    }
+    if (exp = checkAndRemoveAttribute(node2, ":html")) {
+      const htmlExp = exp;
+      context2.effect(() => {
+        const result = evalGet(context2.scope, htmlExp, node2);
+        if (result instanceof Element) {
+          node2.replaceChildren();
+          node2.append(result);
+        } else {
+          node2.innerHTML = result;
+        }
+      });
+    }
+    if (exp = checkAndRemoveAttribute(node2, ":text")) {
+      const textExp = exp;
+      context2.effect(() => {
+        node2.textContent = toDisplayString(evalGet(context2.scope, textExp, node2));
+      });
+    }
+  };
+  const processAttributes = (node2, component) => Array.from(node2.attributes).filter((attr) => isSpreadProp(attr.name) || isMirrorProp(attr.name) || isRegularProp(attr.name) && componentHasPropByName(extractPropName(attr.name), component)).map((attr) => ({
+    isMirror: isMirrorProp(attr.name),
+    isSpread: isSpreadProp(attr.name),
+    isBind: attr.name.includes("bind"),
+    originalName: attr.name,
+    extractedName: extractPropName(attr.name),
+    exp: attr.value,
+    value: isMirrorProp(attr.name) ? evalGet(context.scope, extractPropName(attr.name), node2) : attr.value ? evalGet(context.scope, attr.value, node2) : void 0
+  }));
+  if (isComponent(node, context)) {
+    const component = context.app.getComponent(node.tagName.toLowerCase());
+    const allProps = processAttributes(node, component);
+    const componentProps = allProps.reduce((acc, { isSpread, isMirror, extractedName, value }) => {
+      if (isSpread) {
+        const spread = evalGet(context.scope, extractedName, node);
+        if (isObject(spread)) Object.assign(acc, spread);
+      } else if (isMirror) {
+        acc[extractedName] = evalGet(context.scope, extractedName, node);
+      } else {
+        acc[extractedName] = value;
+      }
+      return acc;
+    }, {});
+    const next2 = handleDirectives(node, context, component, componentProps, allProps);
+    if (next2) return next2;
+    const templates = findTemplateNodes(node);
+    return new Block({
+      element: node,
+      app: current2.componentBlock.context.app,
+      // parentContext: context,
+      component,
+      replacementType: "replace",
+      parentComponentBlock: current2.componentBlock,
+      templates,
+      componentProps,
+      allProps
+    }).element;
+  }
+  const next = handleDirectives(node, context);
+  if (next) return next;
+  Array.from(node.attributes).forEach((attr) => {
+    if (isPropAttribute(attr.name)) {
+      new AttributeDirective({ element: node, context, attr });
+    }
+    if (isEventAttribute(attr.name)) {
+      new EventDirective({ element: node, context, attr });
+    }
+  });
+  walkChildren(node, context);
 }
 function walkChildren(node, context) {
-  let child = node.firstChild;
-  while (child) {
-    child = walk(child, context) || child.nextSibling;
+  let child2 = node.firstChild;
+  while (child2) {
+    child2 = walk(child2, context) || child2.nextSibling;
   }
 }
 var evalFuncCache = {};
@@ -1251,38 +1234,41 @@ function flattenRefs(scope) {
   const mapped = {};
   for (const key in scope) {
     if (scope.hasOwnProperty(key)) {
-      if (isRef(scope[key])) {
-        mapped[key] = scope[key].value;
-      } else {
-        mapped[key] = scope[key];
-      }
+      mapped[key] = isRef(scope[key]) ? scope[key].value : scope[key];
     }
   }
   return mapped;
 }
 
 // src/demo.ts
-var main = {
+var child = {
   template: html`
-    <div class="sans-serif margin-y-3 container" style="--column-gap: .5rem; --row-gap: .5rem;">
-      <h1 class="f1 margin-bottom-1 color-60">phase</h1>
-      <h2 class="f3 margin-bottom-1 color-peach-50">Colors</h2>
-      <grid columns="6" class="f6 white-space-nowrap">
-        <div :for="variant in ['base', 'accent', 'red', 'rose', 'orange', 'amber', 'yellow', 'lime', 'green', 'emerald', 'teal', 'cyan', 'sky', 'blue', 'indigo', 'lavender', 'violet', 'purple', 'plum', 'fuchsia', 'pink', 'peach']" class="border-color-30 border-2px">
-          <div :for="rank, index in ranks">
-            <div .style:bind="bg(variant, rank, index)" class="padding-1">{{variant}}-{{rank}}</div>
-          </div>
-        </div>
-      </grid>
+    <div>
+      I am child and I have a cheeseburger: "{{food}}" (does not inherit)
+      <div>
+        <slot />
+      </div>
     </div>
   `,
   main() {
-    const ranks = reactive(["5", "10", "20", "30", "40", "50", "60", "70", "80", "90"]);
-    const basesReverse = computed(() => Array.from(ranks).reverse());
-    const bg = (variant, rank, index) => ({ backgroundColor: `var(--${variant}-${rank})`, color: `var(--${variant}-${basesReverse.value[index]})` });
-    return { ranks, bg };
+    const food = ref("\u{1F354}");
+    return { food };
+  }
+};
+var main = {
+  template: html`
+    <div class="hero sans-serif f2" :scope="{ drink: '🍹' }">
+      <div :scope="{ food: '🍕' }">
+        <div>Parent has pizza: {{food}} and scoped drink: {{drink}}</div>
+        <child>Child slot, food: {{food}} {{drink}}</child>
+      </div>
+    </div>
+  `,
+  main() {
+    return { food: ref("nothing") };
   }
 };
 var app = new App2();
+app.register("child", child);
 app.mount(main, "#app");
 //# sourceMappingURL=demo.js.map
diff --git a/public/demo.js.map b/public/demo.js.map
index dc9af36..0611be8 100755
--- a/public/demo.js.map
+++ b/public/demo.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["../src/util.ts", "../src/directives/attribute.ts", "../src/directives/event.ts", "../src/directives/for.ts", "../src/directives/if.ts", "../src/directives/interpolation.ts", "../src/directives/show.ts", "../src/directives/teleport.ts", "../src/directives/value.ts", "../src/reactivity/effect.ts", "../src/reactivity/computed.ts", "../src/reactivity/ref.ts", "../src/reactivity/reactive.ts", "../src/reactivity/unwrap.ts", "../src/plugins/router/plugin.ts", "../src/index.ts", "../src/demo.ts"],
-  "sourcesContent": ["import { Component } from \".\";\n\nexport function stringToElement(template: string): Element {\n  const parser = new DOMParser();\n  const doc = parser.parseFromString(template, \"text/html\");\n  return doc.body.firstChild as Element;\n}\n\nexport const isText = (node: Node): node is Text => {\n  return node.nodeType === Node.TEXT_NODE;\n};\n\nexport const isTemplate = (node: Node): node is HTMLTemplateElement => {\n  return node.nodeName === \"TEMPLATE\";\n};\n\nexport const isElement = (node: Node): node is Element => {\n  return node.nodeType === Node.ELEMENT_NODE;\n};\n\nexport function isObject(value: any): value is object {\n  return value !== null && typeof value === \"object\" && !isArray(value);\n}\n\nexport function isArray(value: any): value is any[] {\n  return Array.isArray(value);\n}\n\nexport function checkAndRemoveAttribute(el: Element, attrName: string): string | null {\n  // Attempt to get the attribute value\n  const attributeValue = el.getAttribute(attrName);\n\n  // If attribute exists, remove it from the element\n  if (attributeValue !== null) {\n    el.removeAttribute(attrName);\n  }\n\n  // Return the value of the attribute or null if not present\n  return attributeValue;\n}\n\nexport interface Slot {\n  node: Element;\n  name: string;\n}\n\nexport interface Template {\n  targetSlotName: string;\n  node: HTMLTemplateElement;\n}\n\nexport function findSlotNodes(element: Element): Slot[] {\n  const slots: Slot[] = [];\n\n  const findSlots = (node: Element) => {\n    Array.from(node.childNodes).forEach((node) => {\n      if (isElement(node)) {\n        if (node.nodeName === \"SLOT\") {\n          slots.push({ node, name: node.getAttribute(\"name\") || \"default\" });\n        }\n\n        if (node.hasChildNodes()) {\n          findSlots(node);\n        }\n      }\n    });\n  };\n\n  findSlots(element);\n\n  return slots;\n}\n\nexport function findTemplateNodes(element: Element) {\n  const templates: Template[] = [];\n\n  const findTemplates = (element: Element) => {\n    let defaultContentNodes: Node[] = [];\n\n    Array.from(element.childNodes).forEach((node) => {\n      if (isElement(node) || isText(node)) {\n        if (isElement(node) && node.nodeName === \"TEMPLATE\" && isTemplate(node)) {\n          templates.push({ targetSlotName: node.getAttribute(\"slot\") || \"\", node });\n        } else {\n          // Capture non-template top-level nodes and text nodes for default slot\n          defaultContentNodes.push(node);\n        }\n      }\n    });\n\n    if (defaultContentNodes.length > 0) {\n      // Create a template element with a default slot\n      const defaultTemplate = document.createElement(\"template\");\n      defaultTemplate.setAttribute(\"slot\", \"default\");\n\n      defaultContentNodes.forEach((node) => {\n        defaultTemplate.content.appendChild(node);\n      });\n\n      templates.push({ targetSlotName: \"default\", node: defaultTemplate });\n    }\n  };\n\n  findTemplates(element);\n\n  return templates;\n}\n\nexport const nextTick = async (f?: Function) => {\n  await new Promise<void>((r) =>\n    setTimeout((_) =>\n      requestAnimationFrame((_) => {\n        f && f();\n        r();\n      }),\n    ),\n  );\n};\n\nexport function html(strings: TemplateStringsArray, ...values: any[]): string {\n  // List of valid self-closing tags in HTML\n  const selfClosingTags = [\"area\", \"base\", \"br\", \"col\", \"embed\", \"hr\", \"img\", \"input\", \"link\", \"meta\", \"param\", \"source\", \"track\", \"wbr\"];\n\n  // Join the strings and values into a single template\n  let result = strings.reduce((acc, str, i) => acc + str + (values[i] || \"\"), \"\");\n\n  // Match non-HTML valid self-closing tags\n  result = result.replace(/<([a-zA-Z][^\\s/>]*)\\s*([^>]*?)\\/>/g, (match, tagName, attributes) => {\n    // If the tag is a valid self-closing tag, return it as is\n    if (selfClosingTags.includes(tagName.toLowerCase())) {\n      return match;\n    }\n\n    // Return the tag as an open/close tag preserving attributes\n    return `<${tagName} ${attributes}></${tagName}>`;\n  });\n\n  return result;\n}\n\nexport function toDisplayString(value: unknown) {\n  return value == null ? \"\" : isObject(value) ? JSON.stringify(value, null, 2) : String(value);\n}\n\nexport function insertAfter(newNode: Node, existingNode: Node) {\n  if (existingNode.nextSibling) {\n    existingNode.parentNode.insertBefore(newNode, existingNode.nextSibling);\n  } else {\n    existingNode?.parentNode?.appendChild(newNode);\n  }\n}\n\nexport function insertBefore(newNode: Node, existingNode: Node) {\n  existingNode.parentNode?.insertBefore(newNode, existingNode);\n}\n\nexport function isPropAttribute(attrName: string) {\n  if (attrName.startsWith(\".\")) {\n    return true;\n  }\n\n  if (attrName.startsWith(\"{\") && attrName.endsWith(\"}\")) {\n    return true;\n  }\n\n  return false;\n}\n\nexport function isSpreadProp(attr: string) {\n  return attr.startsWith(\"...\");\n}\n\nexport function isMirrorProp(attr: string) {\n  return attr.startsWith(\"{\") && attr.endsWith(\"}\");\n}\n\nexport function isRegularProp(attr: string) {\n  return attr.startsWith(\".\");\n}\n\nexport function isEventAttribute(attrName: string) {\n  return attrName.startsWith(\"@\");\n}\n\nexport function componentHasPropByName(name: string, component: Component) {\n  return Object.keys(component?.props ?? {}).some((prop) => prop === name);\n}\n\nexport function extractAttributeName(attrName: string) {\n  return attrName\n    .replace(/^\\.\\.\\./, \"\")\n    .replace(/^\\./, \"\")\n    .replace(/^{/, \"\")\n    .replace(/}$/, \"\")\n    .replace(/:bind$/, \"\");\n}\n\nfunction dashToCamel(str: string) {\n  return str.toLowerCase().replace(/-([a-z])/g, (g) => g[1].toUpperCase());\n}\n\nexport function extractPropName(attrName: string) {\n  return dashToCamel(extractAttributeName(attrName));\n}\n\nexport function classNames(_: any) {\n  const classes = [];\n  for (let i = 0; i < arguments.length; i++) {\n    const arg = arguments[i];\n    if (!arg) continue;\n    const argType = typeof arg;\n    if (argType === \"string\" || argType === \"number\") {\n      classes.push(arg);\n    } else if (Array.isArray(arg)) {\n      if (arg.length) {\n        const inner = classNames.apply(null, arg);\n        if (inner) {\n          classes.push(inner);\n        }\n      }\n    } else if (argType === \"object\") {\n      if (arg.toString === Object.prototype.toString) {\n        for (let key in arg) {\n          if (Object.hasOwnProperty.call(arg, key) && arg[key]) {\n            classes.push(key);\n          }\n        }\n      } else {\n        classes.push(arg.toString());\n      }\n    }\n  }\n  return classes.join(\" \");\n}\n", "import { Context, evalGet } from \"..\";\nimport { classNames, extractAttributeName } from \"../util\";\n\ninterface AttributeDirectiveOptions {\n  element: Element;\n  context: Context;\n  attr: Attr;\n}\n\ninterface Is {\n  sameNameProperty: boolean;\n  bound: boolean;\n  spread: boolean;\n  componentProp: boolean;\n}\n\nexport class AttributeDirective {\n  element: Element;\n  context: Context;\n  expression: string;\n  attr: Attr;\n  extractedAttributeName: string;\n\n  previousClasses: string[] = [];\n  previousStyles: { [key: string]: string } = {};\n\n  is: Is = {\n    sameNameProperty: false,\n    bound: false,\n    spread: false,\n    componentProp: false,\n  };\n\n  constructor({ element, context, attr }: AttributeDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n    this.expression = attr.value;\n    this.attr = attr;\n    this.extractedAttributeName = extractAttributeName(attr.name);\n\n    this.is = {\n      sameNameProperty: attr.name.startsWith(\"{\") && attr.name.endsWith(\"}\"),\n      bound: attr.name.includes(\":bind\"),\n      spread: attr.name.startsWith(\"...\"),\n      componentProp: false,\n    };\n\n    if (this.is.sameNameProperty) {\n      this.expression = this.extractedAttributeName;\n    }\n\n    if (this.is.spread) {\n      this.expression = this.extractedAttributeName;\n    }\n\n    element.removeAttribute(attr.name);\n\n    if (this.is.bound) {\n      context.effect(this.update.bind(this));\n    } else {\n      this.update();\n    }\n  }\n\n  update() {\n    let value = evalGet(this.context.scope, this.expression, this.element);\n\n    if (this.is.spread && typeof value === \"object\") {\n      for (const [key, val] of Object.entries(value)) {\n        this.element.setAttribute(key, String(val));\n      }\n    } else if ((typeof value === \"object\" || Array.isArray(value)) && this.extractedAttributeName === \"class\") {\n      value = classNames(value);\n      const next = value.split(\" \");\n\n      // If we now have classes that are not already on the element, add them now.\n      // Remove classes that are no longer on the element.\n      const diff = next.filter((c: string) => !this.previousClasses.includes(c)).filter(Boolean);\n      const rm = this.previousClasses.filter((c) => !next.includes(c));\n\n      diff.forEach((c: string) => {\n        this.previousClasses.push(c);\n        this.element.classList.add(c);\n      });\n\n      rm.forEach((c) => {\n        this.previousClasses = this.previousClasses.filter((addedClass) => addedClass !== c);\n        this.element.classList.remove(c);\n      });\n    } else if (typeof value === \"object\" && this.extractedAttributeName === \"style\") {\n      const next = Object.keys(value);\n      const rm = Object.keys(this.previousStyles).filter((style) => !next.includes(style));\n\n      next.forEach((style) => {\n        this.previousStyles[style] = value[style];\n        // @ts-ignore\n        this.element.style[style] = value[style];\n      });\n\n      rm.forEach((style) => {\n        this.previousStyles[style] = \"\";\n        // @ts-ignore\n        this.element.style[style] = \"\";\n      });\n\n      this.previousStyles = value;\n    } else {\n      this.element.setAttribute(this.extractedAttributeName, value);\n    }\n  }\n}\n", "import { Context, evalGet } from \"..\";\n\ninterface EventDirectiveOptions {\n  element: Element;\n  context: Context;\n  attr: Attr;\n}\n\nexport class EventDirective {\n  element: Element;\n  context: Context;\n  expression: string;\n  attr: Attr;\n  eventCount = 0;\n\n  constructor({ element, context, attr }: EventDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n    this.expression = attr.value;\n    this.attr = attr;\n\n    const eventName = attr.name.replace(/^@/, \"\");\n    const parts = eventName.split(\".\");\n\n    this.element.addEventListener(parts[0], (event) => {\n      if (parts.includes(\"prevent\")) event.preventDefault();\n      if (parts.includes(\"stop\")) event.stopPropagation();\n      if (parts.includes(\"once\") && this.eventCount > 0) return;\n\n      this.eventCount++;\n\n      const handler = evalGet(context.scope, attr.value, element);\n      if (typeof handler === \"function\") {\n        handler(event);\n      }\n    });\n\n    element.removeAttribute(attr.name);\n  }\n}\n", "import { Block, Component, Context, createScopedContext, evalGet } from \"..\";\nimport { isArray, isObject } from \"../util\";\n\nconst forAliasRE = /([\\s\\S]*?)\\s+(?:in|of)\\s+([\\s\\S]*)/;\nconst forIteratorRE = /,([^,\\}\\]]*)(?:,([^,\\}\\]]*))?$/;\nconst stripParensRE = /^\\(|\\)$/g;\nconst destructureRE = /^[{[]\\s*((?:[\\w_$]+\\s*,?\\s*)+)[\\]}]$/;\n\ntype KeyToIndexMap = Map<any, number>;\n\nexport const _for = (el: Element, exp: string, ctx: Context, component?: Component, componentProps?: Record<string, any>, allProps?: Record<string, any>) => {\n  const inMatch = exp.match(forAliasRE);\n  if (!inMatch) {\n    console.warn(`invalid :for expression: ${exp}`);\n    return;\n  }\n\n  const nextNode = el.nextSibling;\n\n  const parent = el.parentElement!;\n  const anchor = new Text(\"\");\n  parent.insertBefore(anchor, el);\n  parent.removeChild(el);\n\n  const sourceExp = inMatch[2].trim();\n  let valueExp = inMatch[1].trim().replace(stripParensRE, \"\").trim();\n  let destructureBindings: string[] | undefined;\n  let isArrayDestructure = false;\n  let indexExp: string | undefined;\n  let objIndexExp: string | undefined;\n\n  let keyAttr = \"key\";\n  let keyExp = el.getAttribute(keyAttr) || el.getAttribute((keyAttr = \":key\")) || el.getAttribute((keyAttr = \":key:bind\"));\n  if (keyExp) {\n    el.removeAttribute(keyAttr);\n    if (keyAttr === \"key\") keyExp = JSON.stringify(keyExp);\n  }\n\n  let match: any;\n  if ((match = valueExp.match(forIteratorRE))) {\n    valueExp = valueExp.replace(forIteratorRE, \"\").trim();\n    indexExp = match[1].trim();\n    if (match[2]) {\n      objIndexExp = match[2].trim();\n    }\n  }\n\n  if ((match = valueExp.match(destructureRE))) {\n    destructureBindings = match[1].split(\",\").map((s: string) => s.trim());\n    isArrayDestructure = valueExp[0] === \"[\";\n  }\n\n  let mounted = false;\n  let blocks: Block[];\n  let childCtxs: Context[];\n  let keyToIndexMap: Map<any, number>;\n\n  const createChildContexts = (source: unknown): [Context[], KeyToIndexMap] => {\n    const map: KeyToIndexMap = new Map();\n    const ctxs: Context[] = [];\n\n    if (isArray(source)) {\n      for (let i = 0; i < source.length; i++) {\n        ctxs.push(createChildContext(map, source[i], i));\n      }\n    } else if (typeof source === \"number\") {\n      for (let i = 0; i < source; i++) {\n        ctxs.push(createChildContext(map, i + 1, i));\n      }\n    } else if (isObject(source)) {\n      let i = 0;\n      for (const key in source) {\n        ctxs.push(createChildContext(map, source[key], i++, key));\n      }\n    }\n\n    return [ctxs, map];\n  };\n\n  const createChildContext = (map: KeyToIndexMap, value: any, index: number, objKey?: string): Context => {\n    const data: any = {};\n    if (destructureBindings) {\n      destructureBindings.forEach((b, i) => (data[b] = value[isArrayDestructure ? i : b]));\n    } else {\n      data[valueExp] = value;\n    }\n    if (objKey) {\n      indexExp && (data[indexExp] = objKey);\n      objIndexExp && (data[objIndexExp] = index);\n    } else {\n      indexExp && (data[indexExp] = index);\n    }\n\n    const childCtx = createScopedContext(ctx, data);\n    const key = keyExp ? evalGet(childCtx.scope, keyExp, el) : index;\n    map.set(key, index);\n    childCtx.key = key;\n    return childCtx;\n  };\n\n  const mountBlock = (ctx: Context, ref: Node) => {\n    const block = new Block({ element: el, parentContext: ctx, replacementType: \"replace\", component, componentProps, allProps });\n    block.key = ctx.key;\n    block.insert(parent, ref);\n    return block;\n  };\n\n  ctx.effect(() => {\n    const source = evalGet(ctx.scope, sourceExp, el);\n    const prevKeyToIndexMap = keyToIndexMap;\n    [childCtxs, keyToIndexMap] = createChildContexts(source);\n    if (!mounted) {\n      blocks = childCtxs.map((s) => mountBlock(s, anchor));\n      mounted = true;\n    } else {\n      for (let i = 0; i < blocks.length; i++) {\n        if (!keyToIndexMap.has(blocks[i].key)) {\n          blocks[i].remove();\n        }\n      }\n\n      const nextBlocks: Block[] = [];\n      let i = childCtxs.length;\n      let nextBlock: Block | undefined;\n      let prevMovedBlock: Block | undefined;\n      while (i--) {\n        const childCtx = childCtxs[i];\n        const oldIndex = prevKeyToIndexMap.get(childCtx.key);\n        let block: Block;\n        if (oldIndex == null) {\n          // new\n          block = mountBlock(childCtx, nextBlock ? nextBlock.element : anchor);\n        } else {\n          // update\n          block = blocks[oldIndex];\n          Object.assign(block.context.scope, childCtx.scope);\n          if (oldIndex !== i) {\n            // moved\n            if (\n              blocks[oldIndex + 1] !== nextBlock ||\n              // If the next has moved, it must move too\n              prevMovedBlock === nextBlock\n            ) {\n              prevMovedBlock = block;\n              block.insert(parent, nextBlock ? nextBlock.element : anchor);\n            }\n          }\n        }\n        nextBlocks.unshift((nextBlock = block));\n      }\n      blocks = nextBlocks;\n    }\n  });\n\n  return nextNode;\n};\n", "import { Block, Component, Context, evalGet } from \"..\";\nimport { checkAndRemoveAttribute } from \"../util\";\n\ninterface Branch {\n  exp?: string | null;\n  el: Element;\n}\n\nexport function _if(el: Element, exp: string, ctx: Context, component?: Component, componentProps?: Record<string, any>, allProps?: Record<string, any>) {\n  const parent = el.parentElement!;\n  const anchor = new Comment(\":if\");\n\n  parent.insertBefore(anchor, el);\n\n  const branches: Branch[] = [{ exp, el }];\n\n  let elseEl: Element | null;\n  let elseExp: string | null;\n\n  while ((elseEl = el.nextElementSibling)) {\n    elseExp = null;\n\n    if (checkAndRemoveAttribute(elseEl, \":else\") === \"\" || (elseExp = checkAndRemoveAttribute(elseEl, \":else-if\"))) {\n      parent.removeChild(elseEl);\n      branches.push({ exp: elseExp, el: elseEl });\n    } else {\n      break;\n    }\n  }\n\n  const nextNode = el.nextSibling;\n  parent.removeChild(el);\n\n  let block: Block | undefined;\n  let activeBranchIndex = -1;\n\n  const removeActiveBlock = () => {\n    if (block) {\n      parent.insertBefore(anchor, block.element);\n      block.remove();\n      block = undefined;\n    }\n  };\n\n  ctx.effect(() => {\n    for (let i = 0; i < branches.length; i++) {\n      const { exp, el } = branches[i];\n\n      if (!exp || evalGet(ctx.scope, exp, el)) {\n        if (i !== activeBranchIndex) {\n          removeActiveBlock();\n          block = new Block({ element: el, parentContext: ctx, replacementType: \"replace\", component, componentProps, allProps });\n          block.insert(parent, anchor);\n          parent.removeChild(anchor);\n          activeBranchIndex = i;\n        }\n\n        return;\n      }\n    }\n\n    activeBranchIndex = -1;\n    removeActiveBlock();\n  });\n\n  return nextNode.parentElement;\n}\n", "import { Context, evalGet } from \"../\";\nimport { insertAfter, toDisplayString } from \"../util\";\n\ninterface InterpolationDirectiveOptions {\n  element: Text;\n  context: Context;\n}\n\nconst delims = /{{\\s?(.*?)\\s?}}/g;\n\nexport class InterpolationDirective {\n  element: Text;\n  context: Context;\n  textNodes: Map<string, Node[]> = new Map();\n\n  constructor({ element, context }: InterpolationDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n\n    this.findNodes();\n\n    this.textNodes.forEach((nodes, expression) => {\n      const trimmedExpression = expression.slice(2, -2).trim();\n\n      nodes.forEach((node) => {\n        const getter = (exp = trimmedExpression) => evalGet(this.context.scope, exp, element);\n\n        context.effect(() => {\n          node.textContent = toDisplayString(getter());\n        });\n      });\n    });\n  }\n\n  findNodes() {\n    const textContent = this.element.textContent.trim();\n    if (textContent?.match(delims)) {\n      const textNodes = textContent.split(/(\\{\\{\\s?[^}]+\\s?\\}\\})/g).filter(Boolean);\n      if (textNodes) {\n        let previousNode = this.element;\n\n        for (let i = 0; i < textNodes.length; i++) {\n          const textNode = textNodes[i];\n\n          if (textNode.match(/\\{\\{\\s?.+\\s?\\}\\}/)) {\n            const newNode = document.createTextNode(textNode);\n\n            if (i === 0) {\n              this.element.replaceWith(newNode);\n            } else {\n              insertAfter(newNode, previousNode);\n            }\n\n            previousNode = newNode;\n\n            if (this.textNodes.has(textNode)) {\n              this.textNodes.get(textNode).push(newNode);\n            } else {\n              this.textNodes.set(textNode, [newNode]);\n            }\n          } else {\n            const newNode = document.createTextNode(textNodes[i]);\n\n            if (i === 0) {\n              this.element.replaceWith(newNode);\n            } else {\n              insertAfter(newNode, previousNode);\n            }\n\n            previousNode = newNode;\n          }\n        }\n      }\n    }\n  }\n\n  update() {}\n}\n", "import { Context, evalGet } from \"..\";\n\ninterface ShowDirectiveOptions {\n  element: Element;\n  context: Context;\n  expression: string;\n}\n\nexport class ShowDirective {\n  element: Element;\n  context: Context;\n  expression: string;\n  originalDisplay: string;\n\n  constructor({ element, context, expression }: ShowDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n    this.expression = expression;\n    this.originalDisplay = getComputedStyle(this.element).display;\n\n    context.effect(this.update.bind(this));\n  }\n\n  update() {\n    const shouldShow = Boolean(evalGet(this.context.scope, this.expression, this.element));\n    // @ts-ignore\n    this.element.style.display = shouldShow ? this.originalDisplay : \"none\";\n  }\n}\n", "import { Block, Component, Context } from \"..\";\nimport { insertBefore } from \"../util\";\n\nexport function _teleport(el: Element, exp: string, ctx: Context, component?: Component, componentProps?: Record<string, any>, allProps?: Record<string, any>) {\n  const anchor = new Comment(\":teleport anchor\");\n  insertBefore(anchor, el);\n  const observed = new Comment(\":teleport\");\n  el.replaceWith(observed);\n  console.log(\"Creating new block with allProps\", component);\n\n  const target = document.querySelector(exp);\n  if (!target) {\n    console.warn(`teleport target not found: ${exp}`);\n    return;\n  }\n\n  // Prevent interpolations flashing before they can be compiled due to nextTick,\n  // which is apparently required.\n  // @ts-ignore\n  const originalDisplay = el.style.display;\n  // @ts-ignore\n  el.style.display = \"none\";\n\n  let block: Block;\n\n  target.appendChild(el);\n\n  const observer = new MutationObserver((mutationsList) => {\n    mutationsList.forEach((mutation) => {\n      mutation.removedNodes.forEach((removedNode) => {\n        if (removedNode.contains(observed)) {\n          if (block.element) block.remove();\n          observer.disconnect();\n        }\n      });\n    });\n  });\n\n  observer.observe(document.body, { childList: true, subtree: true });\n\n  // @ts-ignore\n  el.style.display = originalDisplay;\n\n  block = new Block({\n    element: el,\n    parentContext: ctx,\n    replacementType: \"replace\",\n    component,\n    componentProps,\n    allProps,\n  });\n\n  // Return the anchor so walk continues down the tree in the right order.\n  return anchor;\n}\n", "import { Context, evalGet, evalSet } from \"..\";\n\ninterface ValueDirectiveOptions {\n  element: Element;\n  context: Context;\n  expression: string;\n}\n\ntype SupportedModelType = \"text\" | \"checkbox\" | \"radio\" | \"number\" | \"password\" | \"color\";\n\nfunction isInput(element: Element): element is HTMLInputElement {\n  return element instanceof HTMLInputElement;\n}\n\nfunction isTextarea(element: Element): element is HTMLTextAreaElement {\n  return element instanceof HTMLTextAreaElement;\n}\n\nfunction isSelect(element: Element): element is HTMLSelectElement {\n  return element instanceof HTMLSelectElement;\n}\n\nexport class ValueDirective {\n  element: Element;\n  context: Context;\n  expression: string;\n  inputType: SupportedModelType;\n\n  constructor({ element, context, expression }: ValueDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n    this.expression = expression;\n    this.inputType = element.getAttribute(\"type\") as SupportedModelType;\n\n    // Element -> Context\n    if (isInput(element)) {\n      switch (this.inputType) {\n        case \"text\":\n        case \"password\":\n        case \"number\":\n        case \"color\":\n          element.addEventListener(\"input\", () => {\n            const value = this.inputType === \"number\" ? (element.value ? parseFloat(element.value) : 0) : element.value;\n            evalSet(this.context.scope, expression, value);\n          });\n          break;\n\n        case \"checkbox\":\n          element.addEventListener(\"change\", (e: any) => {\n            evalSet(this.context.scope, expression, !!e.currentTarget.checked);\n          });\n          break;\n        case \"radio\":\n          element.addEventListener(\"change\", (e: any) => {\n            if (e.currentTarget.checked) {\n              evalSet(this.context.scope, expression, element.getAttribute(\"value\"));\n            }\n          });\n          break;\n        default:\n          break;\n      }\n    }\n\n    if (isTextarea(element)) {\n      element.addEventListener(\"input\", () => {\n        evalSet(this.context.scope, expression, element.value);\n      });\n    }\n\n    if (isSelect(element)) {\n      element.addEventListener(\"change\", () => {\n        evalSet(this.context.scope, expression, element.value);\n      });\n    }\n\n    // Context -> Element\n    context.effect(this.updateElementValue.bind(this));\n  }\n\n  updateElementValue() {\n    const value = evalGet(this.context.scope, this.expression, this.element);\n\n    if (isInput(this.element)) {\n      switch (this.inputType) {\n        case \"text\":\n        case \"password\":\n        case \"number\":\n        case \"color\":\n          this.element.value = value;\n          break;\n        case \"checkbox\":\n          this.element.checked = !!value;\n          break;\n        case \"radio\":\n          this.element.checked = this.element.value === value;\n          break;\n        default:\n          break;\n      }\n    }\n\n    if (isTextarea(this.element)) {\n      this.element.value = value;\n    }\n\n    if (isSelect(this.element)) {\n      this.element.value = value;\n    }\n  }\n}\n", "interface EffectOptions {\n  lazy?: boolean;\n}\n\ninterface EffectFunction {\n  active: boolean;\n  handler: () => void;\n  refs: Set<EffectFunction>[];\n}\n\ntype Effects = Set<EffectFunction>;\ntype EffectsMap = Map<PropertyKey, Effects>;\ntype TargetMap = WeakMap<any, EffectsMap>;\n\nconst targetMap: TargetMap = new WeakMap();\nconst effectStack: (EffectFunction | undefined)[] = [];\n\nexport function track<T>(target: T, key: PropertyKey) {\n  const activeEffect = effectStack[effectStack.length - 1];\n\n  if (!activeEffect) return;\n\n  let effectsMap = targetMap.get(target);\n  if (!effectsMap)\n    targetMap.set(target, (effectsMap = new Map() as EffectsMap));\n\n  let effects = effectsMap.get(key);\n  if (!effects) effectsMap.set(key, (effects = new Set<EffectFunction>()));\n\n  if (!effects.has(activeEffect)) {\n    effects.add(activeEffect);\n    activeEffect.refs.push(effects);\n  }\n}\n\nexport function trigger(target: any, key: PropertyKey) {\n  const effectsMap = targetMap.get(target);\n  if (!effectsMap) return;\n\n  const scheduled = new Set<EffectFunction>();\n\n  effectsMap.get(key)?.forEach((effect) => {\n    scheduled.add(effect);\n  });\n\n  scheduled.forEach(run);\n}\n\nfunction stop(effect: EffectFunction) {\n  if (effect.active) cleanup(effect);\n  effect.active = false;\n}\n\nfunction start(effect: EffectFunction) {\n  if (!effect.active) {\n    effect.active = true;\n    run(effect);\n  }\n}\n\nfunction run(effect: EffectFunction): unknown {\n  if (!effect.active) return;\n\n  if (effectStack.includes(effect)) return;\n\n  cleanup(effect);\n\n  let val: unknown;\n\n  try {\n    effectStack.push(effect);\n    val = effect.handler();\n  } finally {\n    effectStack.pop();\n  }\n\n  return val;\n}\n\nfunction cleanup(effect: EffectFunction) {\n  const { refs } = effect;\n\n  if (refs.length) {\n    for (const ref of refs) {\n      ref.delete(effect);\n    }\n  }\n\n  refs.length = 0;\n}\n\nexport function effect(handler: () => void, opts: EffectOptions = {}) {\n  const { lazy } = opts;\n  const newEffect: EffectFunction = {\n    active: !lazy,\n    handler,\n    refs: [],\n  };\n\n  run(newEffect);\n\n  return {\n    start: () => {\n      start(newEffect);\n    },\n    stop: () => {\n      stop(newEffect);\n    },\n    toggle: () => {\n      if (newEffect.active) {\n        stop(newEffect);\n      } else {\n        start(newEffect);\n      }\n      return newEffect.active;\n    },\n  };\n}\n", "import { isObject } from \"../util\";\nimport { effect } from \"./effect\";\n\nconst $computed = Symbol(\"computed\");\n\nexport type Computed<T> = {\n  readonly value: T;\n  readonly [$computed]: true;\n};\n\nexport function isComputed<T>(value: unknown): value is Computed<T> {\n  return isObject(value) && value[$computed];\n}\n\nexport function computed<T>(getter: () => T): Computed<T> {\n  const ref = {\n    get value(): T {\n      return getter();\n    },\n    [$computed]: true,\n  } as const;\n\n  effect(() => {\n    getter();\n  });\n\n  return ref;\n}\n", "import { isObject } from \"../util\";\nimport { track, trigger } from \"./effect\";\nimport { Reactive, reactive } from \"./reactive\";\n\nexport const $ref = Symbol(\"ref\");\n\nexport type Ref<T> = {\n  value: T;\n  [$ref]: true;\n};\n\nexport function isRef<T>(value: unknown): value is Ref<T> {\n  return isObject(value) && !!value[$ref];\n}\n\nexport function ref<T>(value: T = null as unknown as T): Ref<T> {\n  if (isObject(value)) {\n    // @ts-ignore\n    return isRef(value) ? (value as Ref<T>) : (reactive(value) as Reactive<T>);\n  }\n\n  const result = { value, [$ref]: true };\n\n  return new Proxy(result, {\n    get(target: object, key: string | symbol, receiver: any) {\n      const val = Reflect.get(target, key, receiver);\n      track(result, \"value\");\n      return val;\n    },\n    set(target: object, key: string | symbol, value: unknown) {\n      const oldValue = target[key];\n      if (oldValue !== value) {\n        const success = Reflect.set(target, key, value);\n        if (success) {\n          trigger(result, \"value\");\n        }\n      }\n      return true;\n    },\n  }) as Ref<T>;\n}\n", "import { isObject } from \"../util\";\nimport { track, trigger } from \"./effect\";\nimport { ref } from \"./ref\";\n\nconst $reactive = Symbol(\"reactive\");\n\nexport type Reactive<T> = T & { [$reactive]: true };\n\nexport function isReactive<T extends object>(\n  value: unknown,\n): value is Reactive<T> {\n  return isObject(value) && !!value[$reactive];\n}\n\nexport function reactive<T>(value: T): Reactive<T> {\n  // @ts-ignore\n  if (!isObject(value)) return ref(value) as Reactive<unknown>;\n  if (value[$reactive]) return value as Reactive<T>;\n\n  value[$reactive] = true;\n\n  Object.keys(value).forEach((key) => {\n    if (isObject(value[key])) {\n      value[key] = reactive(value[key]);\n    }\n  });\n\n  return new Proxy(value, reactiveProxyHandler()) as Reactive<T>;\n}\n\nfunction reactiveProxyHandler() {\n  return {\n    deleteProperty(target: object, key: string | symbol) {\n      const had = Reflect.has(target, key);\n      const result = Reflect.deleteProperty(target, key);\n      if (had) trigger(target, key);\n      return result;\n    },\n    get(target: object, key: string | symbol) {\n      track(target, key);\n      return Reflect.get(target, key);\n    },\n    set(target: object, key: string | symbol, value: unknown) {\n      if (target[key] === value) return true;\n      let newObj = false;\n\n      if (isObject(value) && !isObject(target[key])) {\n        newObj = true;\n      }\n\n      if (Reflect.set(target, key, value)) {\n        trigger(target, key);\n      }\n\n      if (newObj) {\n        target[key] = reactive(target[key]);\n      }\n\n      return true;\n    },\n  };\n}\n", "import { isComputed } from \"./computed\";\nimport { isRef } from \"./ref\";\n\nexport function unwrap(value: unknown) {\n  if (isRef(value) || isComputed(value)) {\n    return value.value;\n  }\n\n  if (typeof value === \"function\") {\n    return value();\n  }\n\n  return value;\n}\n", "import { pathToRegexp } from \"path-to-regexp\";\nimport { Route, RouteExpression, RouteMatch } from \".\";\nimport { Plugin } from \"..\";\nimport { App, Block, Component, current } from \"../..\";\nimport { reactive } from \"../../reactivity/reactive\";\nimport { unwrap } from \"../../reactivity/unwrap\";\nimport { html } from \"../../util\";\n\nexport const activeRouters = new Set<RouterPlugin>();\n\nexport function getRouter(): RouterPlugin | undefined {\n  return current.componentBlock ? [...activeRouters].find((router) => router.app === current.componentBlock.context.app) : undefined;\n}\n\nconst link = {\n  template: html`<a {href:bind} @click=\"go\" .class:bind=\"classes\"><slot /></a>`,\n  props: { href: { default: \"#\" } },\n  main({ href }: { href: string }) {\n    const go = (e: Event) => {\n      e.preventDefault();\n\n      activeRouters.forEach((router) => {\n        router.doRouteChange(unwrap(href as unknown) as string);\n      });\n    };\n\n    const classes = reactive({ \"router-link\": true });\n\n    return { go, classes, href };\n  },\n};\n\nasync function runEnterTransition(enter: () => boolean | Promise<boolean>): Promise<boolean> {\n  return await enter();\n}\n\nconst canEnterRoute = async (route: Route) => {\n  if (route.beforeEnter) {\n    return await runEnterTransition(route.beforeEnter);\n  }\n  return true;\n};\n\nconst maybeRedirectRoute = (route: Route) => {\n  if (route.redirectTo) {\n    activeRouters.forEach((plugin) => plugin.doRouteChange(route.redirectTo));\n  }\n};\n\nexport class RouterPlugin implements Plugin {\n  app: App;\n  routes: Route[] = [];\n  pathExpressions = new Map<string, RouteExpression>();\n  lastPath = \"/\";\n  knownRouterViews = new Map<Element, Block>();\n  knownRouterViewNames = new Map<string, Element>();\n  populatedRouterViews = new Map<Element, { block: Block; route: Route }>();\n\n  constructor(routes: Route[] = []) {\n    this.routes = routes;\n  }\n\n  use(app: App, ..._: any[]) {\n    this.app = app;\n    this.app.register(\"router-link\", link);\n\n    window.addEventListener(\"popstate\", this.onHistoryEvent.bind(this));\n    window.addEventListener(\"pushstate\", this.onHistoryEvent.bind(this));\n    window.addEventListener(\"load\", this.onHistoryEvent.bind(this));\n\n    for (const route of this.routes) {\n      this.cacheRouteExpression(route);\n    }\n\n    this.lastPath = `${location.pathname}${location.search}`;\n    window.history.replaceState({}, \"\", this.lastPath);\n\n    activeRouters.add(this);\n  }\n\n  compile(element: Element) {\n    if (element.nodeType === Node.ELEMENT_NODE && element.nodeName === \"ROUTER-VIEW\" && !this.knownRouterViews.has(element) && current.componentBlock) {\n      this.knownRouterViews.set(element, current.componentBlock);\n      this.knownRouterViewNames.set(element.getAttribute(\"name\")?.trim() || \"\", element);\n    }\n  }\n\n  onHistoryEvent(e: PopStateEvent | Event) {\n    e.preventDefault();\n    e.stopImmediatePropagation();\n\n    // @ts-ignore\n    const path = new URL(e.currentTarget.location.href).pathname;\n\n    if (e.type === \"load\") {\n      window.history.replaceState({}, \"\", this.lastPath);\n    } else if (e.type === \"pushstate\") {\n      window.history.replaceState({}, \"\", path);\n    } else if (e.type === \"popstate\") {\n      window.history.replaceState({}, \"\", path);\n    }\n\n    this.lastPath = path;\n\n    const matches = this.getMatchesForURL(path);\n    this.applyMatches(matches);\n  }\n\n  doRouteChange(to: string) {\n    window.history.pushState({}, \"\", to);\n    const matches = this.getMatchesForURL(`${location.pathname}${location.search}`);\n    this.applyMatches(matches);\n  }\n\n  getMatchesForURL(url: string): RouteMatch[] {\n    let matches: RouteMatch[] = [];\n\n    const matchRoutes = (routes: Route[], parentPath: string = \"\", previousParents = []): RouteMatch[] => {\n      let parents = [];\n\n      for (const route of routes) {\n        parents.push(route);\n        const path = `${parentPath}${route.path}`.replace(/\\/\\//g, \"/\");\n        const match = this.getPathMatch(path, url);\n        if (match) matches.push({ match, parents: [...previousParents, ...parents] });\n        if (route.children?.length) {\n          matchRoutes(route.children, path, [...previousParents, ...parents]);\n          parents = [];\n        }\n      }\n\n      return matches;\n    };\n    matches = matchRoutes(this.routes);\n    return matches;\n  }\n\n  /**\n   * getRouteExpression takes a path like \"/users/:id\" and returns a regex\n   * and an array of params that match the path.\n   * \"/users/:id\" => { regex: /^\\/users\\/([^\\/]+)\\?jwt=(\\w)$/, params: [\"id\"], query: [\"jwt\"] }\n   */\n  getRouteExpression(path: string, route: Route): RouteExpression {\n    if (this.pathExpressions.has(path)) return this.pathExpressions.get(path);\n\n    const params = [];\n    const regex = pathToRegexp(path, params, { strict: false, sensitive: false, end: true });\n    const expression = { regex, params, path, route };\n    this.pathExpressions.set(path, expression);\n    return expression;\n  }\n\n  /**\n   *\n   * @param path A path like /foo/bar/:id\n   * @param url A url like /foo/bar/1234\n   * @returns A RouteExpression if the URL matches the regex cached for @param path, null otherwise.\n   */\n  getPathMatch(path: string, url: string): RouteExpression | null {\n    if (this.pathExpressions.get(path)) {\n      const match = this.pathExpressions.get(path).regex.exec(url);\n      if (match) {\n        return this.pathExpressions.get(path);\n      }\n    }\n\n    return null;\n  }\n\n  async applyMatches(matches: RouteMatch[] | null) {\n    if (!matches) return;\n\n    const usedRouterViews = new Set<Element>();\n\n    const renderRoutes = async (routeChain: Route[], rootNode?: Element) => {\n      for (const route of routeChain) {\n        if (route.view) {\n          const viewNode = this.knownRouterViewNames.get(route.view);\n          if (viewNode && (await canEnterAndRenderRoute(viewNode, route))) {\n            continue;\n          }\n        } else if (rootNode && (await canEnterAndRenderRoute(rootNode, route))) {\n          continue;\n        }\n      }\n    };\n\n    const canEnterAndRenderRoute = async (node: Element, route: Route) => {\n      const canEnter = await canEnterRoute(route);\n      if (canEnter) {\n        renderRouteAtNode(node, route);\n        return true;\n      } else {\n        if (route.componentFallback) {\n          renderRouteAtNode(node, route, route.componentFallback);\n        } else {\n          maybeRedirectRoute(route);\n        }\n\n        return false;\n      }\n    };\n\n    const renderRouteAtNode = (node: Element, route: Route, component?: Component) => {\n      if (!usedRouterViews.has(node) || this.populatedRouterViews.get(node)?.route !== route) {\n        const div = document.createElement(\"div\");\n        node.replaceChildren(div);\n\n        const target = div.parentElement;\n\n        const block = new Block({\n          element: div,\n          component: component ? component : route.component,\n          replacementType: \"replaceChildren\",\n          parentContext: current.componentBlock.context,\n        });\n\n        target.replaceChild(block.element, div);\n\n        this.populatedRouterViews.set(node, { block, route });\n\n        usedRouterViews.add(node);\n      }\n    };\n\n    for (const match of matches) {\n      const routeChain = [...match.parents, match.match.route];\n      const uniqueRouteChain = routeChain.filter((route, index, self) => index === self.findIndex((r) => r.path === route.path));\n      const rootNode = this.knownRouterViewNames.get(\"\") ?? null;\n      await renderRoutes(uniqueRouteChain, rootNode);\n    }\n\n    // Clean up stale views\n    for (const node of this.knownRouterViews.keys()) {\n      if (!usedRouterViews.has(node) && this.populatedRouterViews.has(node)) {\n        const entry = this.populatedRouterViews.get(node);\n        if (entry) {\n          entry.block.teardown();\n          this.populatedRouterViews.delete(node);\n        }\n      }\n    }\n  }\n\n  cacheRouteExpression(route: Route, parentPath: string = \"\") {\n    const path = `${parentPath}${route.path}`.replace(/\\/\\//g, \"/\");\n    this.getRouteExpression(path, route);\n    if (route.children?.length) {\n      route.children.forEach((child) => {\n        this.cacheRouteExpression(child, path);\n      });\n    }\n  }\n\n  destroy() {\n    window.removeEventListener(\"popstate\", this.onHistoryEvent.bind(this));\n    window.removeEventListener(\"pushstate\", this.onHistoryEvent.bind(this));\n    window.removeEventListener(\"load\", this.onHistoryEvent.bind(this));\n  }\n}\n", "import { AttributeDirective } from \"./directives/attribute\";\nimport { EventDirective } from \"./directives/event\";\nimport { _for } from \"./directives/for\";\nimport { _if } from \"./directives/if\";\nimport { InterpolationDirective } from \"./directives/interpolation\";\nimport { ShowDirective } from \"./directives/show\";\nimport { _teleport } from \"./directives/teleport\";\nimport { ValueDirective } from \"./directives/value\";\nimport { Plugin } from \"./plugins\";\nimport { isComputed } from \"./reactivity/computed\";\nimport { effect as _effect } from \"./reactivity/effect\";\nimport { reactive } from \"./reactivity/reactive\";\nimport { isRef } from \"./reactivity/ref\";\nimport {\n  checkAndRemoveAttribute,\n  componentHasPropByName,\n  extractPropName,\n  findSlotNodes,\n  findTemplateNodes,\n  isElement,\n  isEventAttribute,\n  isMirrorProp,\n  isObject,\n  isPropAttribute,\n  isRegularProp,\n  isSpreadProp,\n  isText,\n  Slot,\n  stringToElement,\n  Template,\n  toDisplayString,\n} from \"./util\";\n\nexport * from \"./plugins\";\nexport * from \"./plugins/router\";\n\nexport function provide(key: string, value: unknown) {\n  if (!current.componentBlock) {\n    console.warn(\"Can't provide: no current component block\");\n  }\n\n  current.componentBlock.provides.set(key, value);\n}\n\nexport function inject(key: string) {\n  if (!current.componentBlock) {\n    console.warn(\"Can't inject: no current component block\");\n  }\n\n  let c = current.componentBlock;\n\n  while (c) {\n    if (c.provides.has(key)) {\n      return c.provides.get(key);\n    }\n\n    c = c.parentComponentBlock;\n  }\n\n  return undefined;\n}\n\nexport class App {\n  root: Block;\n  registry = new Map<string, Component>();\n  plugins = new Set<Plugin>();\n\n  register(name: string, component: Component) {\n    this.registry.set(name, component);\n  }\n\n  use(plugin: Plugin, ...config: any[]) {\n    this.plugins.add(plugin);\n    plugin.use(this, ...config);\n  }\n\n  getComponent(tag: string) {\n    return this.registry.get(tag);\n  }\n\n  mount(component: Component, target: string | HTMLElement = \"body\", props: Record<string, any> = {}) {\n    const root = typeof target === \"string\" ? (document.querySelector(target) as HTMLElement) : target;\n    const display = root.style.display;\n    root.style.display = \"none\";\n    this._mount(component, root, props);\n    root.style.display = display;\n    return this.root;\n  }\n\n  private _mount(component: Component, target: HTMLElement, props: Record<string, any>) {\n    const parentContext = createContext({ app: this });\n\n    if (props) {\n      parentContext.scope = reactive(props);\n      bindContextMethods(parentContext.scope);\n    }\n\n    parentContext.scope.$isRef = isRef;\n    parentContext.scope.$isComputed = isComputed;\n\n    const block = new Block({\n      app: this,\n      element: target,\n      parentContext,\n      component,\n      isRoot: true,\n      componentProps: props,\n      replacementType: \"replaceChildren\",\n    });\n\n    return block;\n  }\n\n  unmount() {\n    this.root.teardown();\n  }\n}\n\nexport interface Context {\n  key?: any;\n  app: App;\n  scope: Record<string, any>;\n  blocks: Block[];\n  effects: Array<ReturnType<typeof _effect>>;\n  effect: typeof _effect;\n  slots: Slot[];\n  templates: Template[];\n}\n\ninterface CreateContextOptions {\n  parentContext?: Context;\n  app?: App;\n}\n\nexport function createContext({ parentContext, app }: CreateContextOptions): Context {\n  const context: Context = {\n    app: app ? app : parentContext && parentContext.app ? parentContext.app : null,\n    scope: parentContext ? parentContext.scope : reactive({}),\n    blocks: [],\n    effects: [],\n    slots: [],\n    templates: parentContext ? parentContext.templates : [],\n    effect: (handler: () => void) => {\n      const e = _effect(handler);\n      context.effects.push(e);\n      return e;\n    },\n  };\n\n  return context;\n}\n\nexport const createScopedContext = (ctx: Context, data = {}): Context => {\n  const parentScope = ctx.scope;\n  const mergedScope = Object.create(parentScope);\n  Object.defineProperties(mergedScope, Object.getOwnPropertyDescriptors(data));\n\n  let proxy: any;\n\n  proxy = reactive(\n    new Proxy(mergedScope, {\n      set(target, key, val, receiver) {\n        // when setting a property that doesn't exist on current scope,\n        // do not create it on the current scope and fallback to parent scope.\n        if (receiver === proxy && !target.hasOwnProperty(key)) {\n          return Reflect.set(parentScope, key, val);\n        }\n\n        return Reflect.set(target, key, val, receiver);\n      },\n    }),\n  );\n\n  bindContextMethods(proxy);\n\n  const out: Context = {\n    ...ctx,\n    scope: {\n      ...ctx.scope,\n      ...proxy,\n    },\n  };\n\n  return out;\n};\n\nfunction bindContextMethods(scope: Record<string, any>) {\n  for (const key of Object.keys(scope)) {\n    if (typeof scope[key] === \"function\") {\n      scope[key] = scope[key].bind(scope);\n    }\n  }\n}\n\nfunction mergeProps(props: Record<string, any>, defaultProps: Record<string, any>) {\n  const merged = {};\n\n  Object.keys(defaultProps).forEach((defaultProp) => {\n    const propValue = props.hasOwnProperty(defaultProp) ? props[defaultProp] : defaultProps[defaultProp]?.default;\n\n    merged[defaultProp] = reactive(typeof propValue === \"function\" ? propValue() : propValue);\n  });\n\n  return merged;\n}\n\nexport interface Component {\n  template: string;\n  props?: Record<string, any>;\n  main?: (props?: Record<string, any>) => Record<string, any> | void;\n}\n\ninterface Current {\n  componentBlock?: Block;\n}\n\nexport const current: Current = { componentBlock: undefined };\n\ninterface BlockOptions {\n  element: Element;\n  isRoot?: boolean;\n  replacementType?: \"replace\" | \"replaceChildren\";\n  componentProps?: Record<string, any>;\n  allProps?: Record<string, any>;\n  parentContext?: Context;\n  app?: App;\n  component?: Component;\n  parentComponentBlock?: Block;\n  templates?: Template[];\n}\n\nexport class Block {\n  element: Element;\n  context: Context;\n  parentContext: Context;\n  component: Component;\n  provides = new Map<string, any>();\n  parentComponentBlock: Block | undefined;\n  componentProps: Record<string, any>;\n  allProps: Record<string, any>;\n\n  isFragment: boolean;\n  start?: Text;\n  end?: Text;\n  key?: any;\n\n  constructor(opts: BlockOptions) {\n    this.isFragment = opts.element instanceof HTMLTemplateElement;\n    this.parentComponentBlock = opts.parentComponentBlock;\n\n    if (opts.component) {\n      current.componentBlock = this;\n      this.element = stringToElement(opts.component.template);\n    } else {\n      if (this.isFragment) {\n        this.element = (opts.element as HTMLTemplateElement).content.cloneNode(true) as Element;\n      } else if (typeof opts.element === \"string\") {\n        this.element = stringToElement(opts.element);\n      } else {\n        this.element = opts.element.cloneNode(true) as Element;\n        opts.element.replaceWith(this.element);\n      }\n    }\n\n    if (opts.isRoot) {\n      this.context = opts.parentContext;\n      opts.app.root = this;\n    } else {\n      this.parentContext = opts.parentContext ? opts.parentContext : createContext({});\n      this.parentContext.blocks.push(this);\n      this.context = createContext({ parentContext: opts.parentContext, app: opts.app });\n    }\n\n    if (opts.component) {\n      this.componentProps = mergeProps(opts.componentProps ?? {}, opts.component.props ?? {});\n\n      if (opts.component.main) {\n        this.context.scope = {\n          ...(opts.component.main(this.componentProps) || {}),\n        };\n      }\n    }\n\n    opts.allProps?.forEach((prop: any) => {\n      if (prop.isBind) {\n        this.context.effect(() => {\n          let newValue: unknown;\n\n          if (prop.isSpread) {\n            const spreadProps = evalGet(this.parentContext.scope, prop.extractedName);\n            if (isObject(spreadProps)) {\n              Object.keys(spreadProps).forEach((key) => {\n                newValue = spreadProps[key];\n                this.setProp(key, newValue);\n              });\n            }\n          } else {\n            newValue = prop.isMirror ? evalGet(this.parentContext.scope, prop.extractedName) : evalGet(this.parentContext.scope, prop.exp);\n            this.setProp(prop.extractedName, newValue);\n          }\n        });\n      }\n    });\n\n    // Capture slots\n    this.context.slots = findSlotNodes(this.element);\n    this.context.templates = opts.templates ?? [];\n\n    // Put templates into slots\n    this.context.slots.forEach((slot) => {\n      const template = this.context.templates.find((t) => t.targetSlotName === slot.name);\n\n      if (template) {\n        const templateContents = template.node.content.cloneNode(true);\n        slot.node.replaceWith(templateContents);\n      }\n    });\n\n    this.context.scope.$isRef = isRef;\n    this.context.scope.$isComputed = isComputed;\n\n    walk(this.element, this.context);\n\n    if (opts.component) {\n      if (opts.replacementType === \"replace\") {\n        if (opts.element instanceof HTMLElement) {\n          opts.element.replaceWith(this.element);\n        }\n      } else {\n        if (opts.element instanceof HTMLElement) {\n          opts.element.replaceChildren(this.element);\n        }\n      }\n    }\n  }\n\n  setProp(name: string, value: unknown) {\n    if (isRef(this.componentProps[name])) {\n      this.componentProps[name].value = value;\n    } else {\n      this.componentProps[name] = value;\n    }\n  }\n\n  insert(parent: Element, anchor: Node | null = null) {\n    if (this.isFragment) {\n      if (this.start) {\n        // Already inserted, moving\n        let node: Node | null = this.start;\n        let next: Node | null;\n\n        while (node) {\n          next = node.nextSibling;\n          parent.insertBefore(node, anchor);\n\n          if (node === this.end) {\n            break;\n          }\n\n          node = next;\n        }\n      } else {\n        this.start = new Text(\"\");\n        this.end = new Text(\"\");\n\n        parent.insertBefore(this.end, anchor);\n        parent.insertBefore(this.start, this.end);\n        parent.insertBefore(this.element, this.end);\n      }\n    } else {\n      parent.insertBefore(this.element, anchor);\n    }\n  }\n\n  remove() {\n    if (this.parentContext) {\n      const i = this.parentContext.blocks.indexOf(this);\n\n      if (i > -1) {\n        this.parentContext.blocks.splice(i, 1);\n      }\n    }\n\n    if (this.start) {\n      const parent = this.start.parentNode!;\n      let node: Node | null = this.start;\n      let next: Node | null;\n\n      while (node) {\n        next = node.nextSibling;\n        parent.removeChild(node);\n\n        if (node === this.end) {\n          break;\n        }\n\n        node = next;\n      }\n    } else {\n      this.element.remove();\n    }\n\n    this.teardown();\n  }\n\n  teardown() {\n    this.context.blocks.forEach((block) => {\n      block.teardown();\n    });\n\n    this.context.effects.forEach((e) => e.stop());\n  }\n}\n\nfunction isComponent(element: Element, context: Context) {\n  return !!context.app.getComponent(element.tagName.toLowerCase());\n}\n\nfunction warnInvalidDirectives(node: Element, directives: string[]): boolean {\n  if (directives.every((d) => node.hasAttribute(d))) {\n    console.warn(`These directives cannot be used together on the same node:`, directives);\n    console.warn(\"Node ignored:\", node);\n    return true;\n  }\n\n  return false;\n}\n\nfunction walk(node: Node, context: Context) {\n  if (isText(node)) {\n    new InterpolationDirective({ element: node, context });\n    return;\n  }\n\n  if (isElement(node)) {\n    let exp: string | null;\n\n    const handleDirectives = (node: Element, context: Context, component?: Component, componentProps?: Record<string, any>, allProps?: any[]) => {\n      if (warnInvalidDirectives(node, [\":if\", \":for\"])) return;\n      if (warnInvalidDirectives(node, [\":for\", \":teleport\"])) return;\n      if (warnInvalidDirectives(node, [\":if\", \":teleport\"])) return;\n\n      // e.g. <div :scope=\"{ open: true }\" />\n      // In this case, the scope is merged into context.scope and will overwrite\n      // anything returned from `main`.\n      if ((exp = checkAndRemoveAttribute(node, \":scope\"))) {\n        const scope = evalGet(context.scope, exp, node);\n        if (typeof scope === \"object\") {\n          Object.assign(context.scope, scope);\n          // context = createScopedContext(context, scope);\n        }\n      }\n\n      if ((exp = checkAndRemoveAttribute(node, \":if\"))) {\n        return _if(node, exp, context, component, componentProps, allProps);\n      }\n      if ((exp = checkAndRemoveAttribute(node, \":for\"))) {\n        return _for(node, exp, context, component, componentProps, allProps);\n      }\n      if ((exp = checkAndRemoveAttribute(node, \":teleport\"))) {\n        return _teleport(node, exp, context, component, componentProps, allProps);\n      }\n      if ((exp = checkAndRemoveAttribute(node, \":show\"))) {\n        new ShowDirective({ element: node, context, expression: exp });\n      }\n      if ((exp = checkAndRemoveAttribute(node, \":ref\"))) {\n        context.scope[exp].value = node;\n      }\n      if ((exp = checkAndRemoveAttribute(node, \":value\"))) {\n        new ValueDirective({ element: node, context, expression: exp });\n      }\n      if ((exp = checkAndRemoveAttribute(node, \":html\"))) {\n        const htmlExp = exp;\n\n        context.effect(() => {\n          const result = evalGet(context.scope, htmlExp, node);\n          if (result instanceof Element) {\n            node.replaceChildren();\n            node.append(result);\n          } else {\n            node.innerHTML = result;\n          }\n        });\n      }\n      if ((exp = checkAndRemoveAttribute(node, \":text\"))) {\n        const textExp = exp;\n\n        context.effect(() => {\n          node.textContent = toDisplayString(evalGet(context.scope, textExp, node));\n        });\n      }\n    };\n\n    const processAttributes = (node: Element, component?: Component) => {\n      return Array.from(node.attributes)\n        .filter((attr) => isSpreadProp(attr.name) || isMirrorProp(attr.name) || (isRegularProp(attr.name) && componentHasPropByName(extractPropName(attr.name), component)))\n        .map((attr) => ({\n          isMirror: isMirrorProp(attr.name),\n          isSpread: isSpreadProp(attr.name),\n          isBind: attr.name.includes(\"bind\"),\n          originalName: attr.name,\n          extractedName: extractPropName(attr.name),\n          exp: attr.value,\n          value: isMirrorProp(attr.name) ? evalGet(context.scope, extractPropName(attr.name), node) : attr.value ? evalGet(context.scope, attr.value, node) : undefined,\n        }));\n    };\n\n    if (isComponent(node, context)) {\n      const component = context.app.getComponent(node.tagName.toLowerCase());\n      const allProps = processAttributes(node, component);\n\n      const componentProps = allProps.reduce((acc, { isSpread, isMirror, extractedName, value }) => {\n        if (isSpread) {\n          const spread = evalGet(context.scope, extractedName, node);\n          if (isObject(spread)) Object.assign(acc, spread);\n        } else if (isMirror) {\n          acc[extractedName] = evalGet(context.scope, extractedName, node);\n        } else {\n          acc[extractedName] = value;\n        }\n        return acc;\n      }, {});\n\n      const next = handleDirectives(node, context, component, componentProps, allProps);\n      if (next) return next;\n\n      const templates = findTemplateNodes(node);\n\n      return new Block({\n        element: node,\n        app: current.componentBlock.context.app,\n        // parentContext: context,\n        component,\n        replacementType: \"replace\",\n        parentComponentBlock: current.componentBlock,\n        templates,\n        componentProps,\n        allProps,\n      }).element;\n    }\n\n    const next = handleDirectives(node, context);\n    if (next) return next;\n\n    Array.from(node.attributes).forEach((attr) => {\n      if (isPropAttribute(attr.name)) {\n        new AttributeDirective({ element: node, context, attr });\n      }\n\n      if (isEventAttribute(attr.name)) {\n        new EventDirective({ element: node, context, attr });\n      }\n    });\n\n    walkChildren(node, context);\n  }\n}\n\nfunction walkChildren(node: Node, context: Context) {\n  let child = node.firstChild;\n\n  while (child) {\n    child = walk(child, context) || child.nextSibling;\n  }\n}\n\nconst evalFuncCache: Record<string, Function> = {};\n\nexport function evalGet(scope: any, exp: string, el?: Node) {\n  if (!exp.trim()) return undefined;\n  return execute(scope, `const ___value = (${exp.trim()}); return ___value;`, el);\n}\n\nexport function evalSet(scope: any, exp: string, value: unknown) {\n  value = typeof value === \"string\" ? `\"${value}\"` : value;\n  return execute(scope, `const ___target = (${exp.trim()}); return $isRef(___target) ? ___target.value = ${value} : ___target = ${value};`, null, false);\n}\n\nfunction execute(scope: any, exp: string, el?: Node, flatRefs = true) {\n  const newScope = flatRefs ? flattenRefs(scope) : scope;\n  const fn = evalFuncCache[exp] || (evalFuncCache[exp] = toFunction(exp));\n\n  try {\n    return fn(newScope, el);\n  } catch (e) {\n    console.warn(`Error evaluating expression: \"${exp}\":`);\n    console.error(e);\n  }\n}\n\n// Function to convert expression strings to functions\nfunction toFunction(exp: string) {\n  try {\n    return new Function(\"$data\", \"$el\", `with($data){${exp}}`);\n  } catch (e) {\n    console.error(`${(e as Error).message} in expression: ${exp}`);\n    return () => {};\n  }\n}\n\n// Map all ref properties in scope to their `.value`\nfunction flattenRefs(scope: any): any {\n  const mapped = {};\n\n  for (const key in scope) {\n    if (scope.hasOwnProperty(key)) {\n      // Check if the value is a Ref\n      if (isRef(scope[key])) {\n        mapped[key] = scope[key].value;\n      } else {\n        mapped[key] = scope[key];\n      }\n    }\n  }\n  return mapped;\n}\n", "import { App } from \".\";\nimport { computed } from \"./reactivity/computed\";\nimport { reactive } from \"./reactivity/reactive\";\nimport { html } from \"./util\";\n\n// ------------------------------------------------\n// Slots, multiple default and named, :if and :for\n// const card = {\n//   template: html`<div>\n//     <h3><slot /></h3>\n//     <slot name=\"body\" />\n//   </div>`,\n// };\n\n// const main = {\n//   template: html`\n//     <div>\n//       <h1>card below</h1>\n//       <card>\n//         card title\n//         <template slot=\"body\">Card body content</template>\n//       </card>\n//     </div>\n//   `,\n// };\n\n// const app = new App();\n// app.register(\"card\", card);\n// app.mount(main, \"#app\");\n\n// ------------------------------------------------\n// Slots, multiple default and named, :if and :for\n// const app = new App();\n\n// const parent = {\n//   template: html`\n//     <div>\n//       <h1>parent</h1>\n//       <card>\n//         <!-- default -->\n//         <div :if=\"bool\">\n//           <div :teleport=\"body\" id=\"teleported\">\n//             <div>1</div>\n//             <div>2</div>\n//             <div>3</div>\n//           </div>\n//         </div>\n//         content 1 always shown\n//         <div :if=\"bool\">\n//           content 2, animals:\n//           <div :for=\"animal in animals\">animal: {{animal}}</div>\n//         </div>\n\n//         <!-- body -->\n//         <template slot=\"body\">card body from parent</template>\n//       </card>\n//     </div>\n//   `,\n//   main() {\n//     const bool = ref(true);\n//     const animals = reactive([\"dog\", \"cat\", \"bear\"]);\n\n//     setInterval(() => {\n//       bool.value = !bool.value;\n//     }, 2000);\n\n//     return { bool, animals };\n//   },\n// };\n// const card = {\n//   template: html`<div>\n//     <h2>card</h2>\n//     <h3><slot /></h3>\n//     <slot name=\"body\" />\n//   </div>`,\n// };\n// app.register(\"card\", card);\n// const parentBlock = app.mount(parent, \"body\");\n// const cardBlock = parentBlock.context.blocks[0];\n\n// ------------------------------------------------\n// Component pros, mirror and spread, bind and no bind\n// const child = {\n//   template: html`<div>Animal: {{animal}} {{index}}</div>`,\n//   props: { animal: { default: \"cat\" }, index: { default: 0 } },\n//   main({ animal, index }) {\n//     return { animal, index };\n//   },\n// };\n\n// const parent = {\n//   template: html`\n//     <div class=\"sans-serif\">\n//       <child :if=\"true\" :for=\"x in list\" />\n//       mirror, no bind:\n//       <child {animal} />\n//       <hr />\n//       mirror, bind:\n//       <child {animal:bind} />\n//       <hr />\n//       spread, no bind:\n//       <child ...spread />\n//       <hr />\n//       spread, bind:\n//       <child ...spread:bind />\n//       <hr />\n//       regular prop:\n//       <child .animal=\"animal\" />\n//       <hr />\n//       regular prop, bind:\n//       <child .animal:bind=\"animal\" />\n//       <hr />\n//       <div .id=\"animal\">div has \"id\" set to animal.value</div>\n//       <hr />\n//       <div .id:bind=\"animal\">div has \"id\" set and bound to animal.value</div>\n//       <hr />\n//       <div {animal}>div has \"animal\" set to animal.value</div>\n//       <hr />\n//       <div {animal:bind}>div has \"animal\" set and bound to animal.value</div>\n//       <hr />\n//       <div ...spread>div has \"animal\" spread</div>\n//       <hr />\n//       <div ...spread:bind>div has \"animal\" spread and bound</div>\n//       <hr />\n//       <hr />\n//       <hr />\n//       <hr />\n//       if bool, mirror, no bind:\n//       <child :if=\"bool\" {animal} />\n//       if bool, mirror, bind:\n//       <child :if=\"bool\" {animal:bind} />\n//       <hr />\n//       for list, mirror, no bind:\n//       <child :for=\"item in list\" {animal} />\n//       <hr />\n//       for list, mirror, bind:\n//       <child :for=\"item in list\" {animal:bind} />\n//       if bool, for list, mirror, no bind: these have the value \"DOG!\" because by the time for :for directive is evaluated, animal.value is \"DOG!\", and no longer \"dog\".\n//       <div :if=\"bool\">\n//         <child :for=\"item in list\" {animal} />\n//       </div>\n//     </div>\n//   `,\n//   main() {\n//     const bool = ref(false);\n//     const animal = ref(\"dog\");\n//     const spread = reactive({ animal: \"panther\" });\n//     const list = reactive([1, 2, 3]);\n\n//     setTimeout(() => {\n//       spread.animal = \"PANTHER!\";\n//       animal.value = \"DOG!\";\n//       bool.value = true;\n//     }, 500);\n\n//     setTimeout(() => {\n//       animal.value = \"DOG!!!!!\";\n//     }, 1000);\n\n//     return { animal, spread, bool, list };\n//   },\n// };\n\n// const app = new App();\n// app.register(\"child\", child);\n// app.mount(parent, \"#app\");\n\n// ------------------------------------------------\n// Event directive\n// const counter = {\n//   template: html`\n//     <div class=\"sans-serif\">\n//       <div :teleport=\"body\">\n//         <div :if=\"style.color === 'gray'\">color is gray</div>\n//         <div :if=\"style.color === 'white'\">color is white</div>\n//         <div>{{style.color}}</div>\n//       </div>\n//       <h3 {style:bind}>Count: {{count}}{{count >= 2 ? '!!!' : ''}}</h3>\n//       <button @click=\"increment\" class=\"padding-x-1 padding-y-0_5\">+</button>\n//       <button @click=\"decrement\" class=\"padding-x-1 padding-y-0_5\">-</button>\n//       <div :teleport=\"body\">\n//         <div :for=\"color in ['red', 'green', 'blue']\">{{color}}</div>\n//       </div>\n//     </div>\n//   `,\n//   main() {\n//     const count = ref(0);\n//     const style = reactive({ color: \"gray\" });\n//     const increment = () => count.value++;\n//     const decrement = () => count.value--;\n//\n//     setInterval(() => {\n//       style.color = style.color === \"gray\" ? \"white\" : \"gray\";\n//     }, 500);\n//\n//     return { count, increment, decrement, style };\n//   },\n// };\n//\n// const app = new App();\n// app.mount(counter, \"#app\");\n\n// ------------------------------------------------\n// :if above :for\n// :if with :teleport\n// const main = {\n//   template: html`\n//     <div>\n//       <div :if=\"bool\">\n//         <div :teleport=\"body\">\n//           <div :for=\"item in items\">{{item}}</div>\n//         </div>\n//       </div>\n//       <div :if=\"bool\">\n//         <div :teleport=\"body\">if bool teleported! {{items}}</div>\n//       </div>\n//     </div>\n//   `,\n//   main() {\n//     const items = reactive([1, 2, 3, 4, 5]);\n//     const bool = ref(true);\n//     setInterval(() => (bool.value = !bool.value), 250);\n//     return { items, bool };\n//   },\n// };\n//\n// const app = new App();\n// app.mount(main, \"#app\");\n\n// ------------------------------------------------\n// :html\n// const main = {\n//   template: html`<div :html=\"html\"></div>`,\n//   main() {\n//     const html = ref(\"<h1>hello</h1>\");\n\n//     setTimeout(() => {\n//       if (html.value === \"<h1>hello</h1>\") {\n//         html.value = \"<h1>world</h1>\";\n//       }\n//     }, 1000);\n\n//     return { html };\n//   },\n// };\n\n// const app = new App();\n// app.mount(main, \"#app\");\n\n// ------------------------------------------------\n// Colors from css framework\nconst main = {\n  template: html`\n    <div class=\"sans-serif margin-y-3 container\" style=\"--column-gap: .5rem; --row-gap: .5rem;\">\n      <h1 class=\"f1 margin-bottom-1 color-60\">phase</h1>\n      <h2 class=\"f3 margin-bottom-1 color-peach-50\">Colors</h2>\n      <grid columns=\"6\" class=\"f6 white-space-nowrap\">\n        <div :for=\"variant in ['base', 'accent', 'red', 'rose', 'orange', 'amber', 'yellow', 'lime', 'green', 'emerald', 'teal', 'cyan', 'sky', 'blue', 'indigo', 'lavender', 'violet', 'purple', 'plum', 'fuchsia', 'pink', 'peach']\" class=\"border-color-30 border-2px\">\n          <div :for=\"rank, index in ranks\">\n            <div .style:bind=\"bg(variant, rank, index)\" class=\"padding-1\">{{variant}}-{{rank}}</div>\n          </div>\n        </div>\n      </grid>\n    </div>\n  `,\n  main() {\n    const ranks = reactive([\"5\", \"10\", \"20\", \"30\", \"40\", \"50\", \"60\", \"70\", \"80\", \"90\"]);\n    const basesReverse = computed(() => Array.from(ranks).reverse());\n    const bg = (variant: string, rank: string, index: number) => ({ backgroundColor: `var(--${variant}-${rank})`, color: `var(--${variant}-${basesReverse.value[index]})` });\n\n    return { ranks, bg };\n  },\n};\n\nconst app = new App();\napp.mount(main, \"#app\");\n\n// ------------------------------------------------\n// :scope\n// const child = {\n//   template: html`\n//     <div>\n//       I am child and I have food: \"{{food}}\" (does not inherit)\n//       <div>\n//         <slot />\n//       </div>\n//     </div>\n//   `,\n//   main() {\n//     const food = ref(\"\uD83C\uDF54\");\n//     return { food };\n//   },\n// };\n\n// const main = {\n//   template: html`\n//     <div class=\"hero sans-serif f2\" :scope=\"{ drink: '\uD83C\uDF79' }\">\n//       <div :scope=\"{ food: '\uD83C\uDF55' }\">\n//         <div>Scoped food: {{food}} and scoped drink: {{drink}}</div>\n//         <child>Child slot, food: {{food}} {{drink}}</child>\n//       </div>\n//     </div>\n//   `,\n//   main() {\n//     return { food: ref(\"nothing\") };\n//   },\n// };\n\n// const app = new App();\n// app.register(\"child\", child);\n// app.mount(main, \"#app\");\n\n// ------------------------------------------------\n// Practical :scope demo\n// const main = {\n//   template: html`\n//     <div class=\"hero sans-serif f2\" :scope=\"{ visible: true }\">\n//       <div :show=\"visible\">ON</div>\n//       <div :show=\"!visible\">OFF</div>\n//       <button @click=\"() => visible = !visible\" class=\"padding-x-1 padding-y-0_5 border-radius-1\">Toggle</button>\n//     </div>\n//   `,\n//   main() {\n//     const onClick = () => {\n//       console.log(\"ok\");\n//     };\n//\n//     return { onClick };\n//   },\n// };\n//\n// const app = new App();\n// app.mount(main, \"#app\");\n\n// --------\n// weird issue\n// const child = {\n//   template: html`<div>child{{thing}}</div>`,\n//   props: { thing: { default: 1 } },\n//   main({ thing }) {\n//     return { thing };\n//   },\n// };\n//\n// const counter = {\n//   template: html`\n//     <div class=\"sans-serif\">\n//       <div :if=\"true\">\n//         <div :teleport=\"body\">\n//           <div :for=\"color in colors\">{{color}}</div>\n//         </div>\n//         <child :teleport=\"body\" .thing=\"5\" />\n//       </div>\n//     </div>\n//   `,\n//   main() {\n//     const colors = reactive([\"red\", \"orange\"]);\n//     return { colors };\n//   },\n// };\n//\n// const app = new App();\n// app.register(\"child\", child);\n// app.mount(counter, \"#app\");\n\n// ------------------------------------------------\n// <template>\n// const templateTest = {\n//   template: html`\n//     <div>\n//       <!-- is dissolved -->\n//       <div :if=\"bool\">hello</div>\n//\n//       <template :if=\"bool\">\n//         <span :for=\"num in [1,2,3]\">{{num}}</span>\n//       </template>\n//     </div>\n//   `,\n//   main() {\n//     const bool = ref(true);\n//\n//     return { bool };\n//   },\n// };\n//\n// const app = new App();\n// app.mount(templateTest, \"#app\");\n"],
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-  "names": ["node", "element", "ctx", "ref", "i", "exp", "el", "effect", "ref", "ref", "value", "App", "app", "node", "context", "next", "App"]
+  "sourcesContent": ["import { Component } from \".\";\n\nexport function stringToElement(template: string): Element {\n  const parser = new DOMParser();\n  const doc = parser.parseFromString(template, \"text/html\");\n  return doc.body.firstChild as Element;\n}\n\nexport const isText = (node: Node): node is Text => {\n  return node.nodeType === Node.TEXT_NODE;\n};\n\nexport const isTemplate = (node: Node): node is HTMLTemplateElement => {\n  return node.nodeName === \"TEMPLATE\";\n};\n\nexport const isElement = (node: Node): node is Element => {\n  return node.nodeType === Node.ELEMENT_NODE;\n};\n\nexport function isObject(value: any): value is object {\n  return value !== null && typeof value === \"object\" && !isArray(value);\n}\n\nexport function isArray(value: any): value is any[] {\n  return Array.isArray(value);\n}\n\nexport function checkAndRemoveAttribute(el: Element, attrName: string): string | null {\n  // Attempt to get the attribute value\n  const attributeValue = el.getAttribute(attrName);\n\n  // If attribute exists, remove it from the element\n  if (attributeValue !== null) {\n    el.removeAttribute(attrName);\n  }\n\n  // Return the value of the attribute or null if not present\n  return attributeValue;\n}\n\nexport interface Slot {\n  node: Element;\n  name: string;\n}\n\nexport interface Template {\n  targetSlotName: string;\n  node: HTMLTemplateElement;\n}\n\nexport function findSlotNodes(element: Element): Slot[] {\n  const slots: Slot[] = [];\n\n  const findSlots = (node: Element) => {\n    Array.from(node.childNodes).forEach((node) => {\n      if (isElement(node)) {\n        if (node.nodeName === \"SLOT\") {\n          slots.push({ node, name: node.getAttribute(\"name\") || \"default\" });\n        }\n\n        if (node.hasChildNodes()) {\n          findSlots(node);\n        }\n      }\n    });\n  };\n\n  findSlots(element);\n\n  return slots;\n}\n\nexport function findTemplateNodes(element: Element) {\n  const templates: Template[] = [];\n\n  const findTemplates = (element: Element) => {\n    let defaultContentNodes: Node[] = [];\n\n    Array.from(element.childNodes).forEach((node) => {\n      if (isElement(node) || isText(node)) {\n        if (isElement(node) && node.nodeName === \"TEMPLATE\" && isTemplate(node)) {\n          templates.push({ targetSlotName: node.getAttribute(\"slot\") || \"\", node });\n        } else {\n          // Capture non-template top-level nodes and text nodes for default slot\n          defaultContentNodes.push(node);\n        }\n      }\n    });\n\n    if (defaultContentNodes.length > 0) {\n      // Create a template element with a default slot\n      const defaultTemplate = document.createElement(\"template\");\n      defaultTemplate.setAttribute(\"slot\", \"default\");\n\n      defaultContentNodes.forEach((node) => {\n        defaultTemplate.content.appendChild(node);\n      });\n\n      templates.push({ targetSlotName: \"default\", node: defaultTemplate });\n    }\n  };\n\n  findTemplates(element);\n\n  return templates;\n}\n\nexport const nextTick = async (f?: Function) => {\n  await new Promise<void>((r) =>\n    setTimeout((_) =>\n      requestAnimationFrame((_) => {\n        f && f();\n        r();\n      }),\n    ),\n  );\n};\n\nexport function html(strings: TemplateStringsArray, ...values: any[]): string {\n  // List of valid self-closing tags in HTML\n  const selfClosingTags = [\"area\", \"base\", \"br\", \"col\", \"embed\", \"hr\", \"img\", \"input\", \"link\", \"meta\", \"param\", \"source\", \"track\", \"wbr\"];\n\n  // Join the strings and values into a single template\n  let result = strings.reduce((acc, str, i) => acc + str + (values[i] || \"\"), \"\");\n\n  // Match non-HTML valid self-closing tags\n  result = result.replace(/<([a-zA-Z][^\\s/>]*)\\s*([^>]*?)\\/>/g, (match, tagName, attributes) => {\n    // If the tag is a valid self-closing tag, return it as is\n    if (selfClosingTags.includes(tagName.toLowerCase())) {\n      return match;\n    }\n\n    // Return the tag as an open/close tag preserving attributes\n    return `<${tagName} ${attributes}></${tagName}>`;\n  });\n\n  return result;\n}\n\nexport function toDisplayString(value: unknown) {\n  return value == null ? \"\" : isObject(value) ? JSON.stringify(value, null, 2) : String(value);\n}\n\nexport function insertAfter(newNode: Node, existingNode: Node) {\n  if (existingNode.nextSibling) {\n    existingNode.parentNode.insertBefore(newNode, existingNode.nextSibling);\n  } else {\n    existingNode?.parentNode?.appendChild(newNode);\n  }\n}\n\nexport function insertBefore(newNode: Node, existingNode: Node) {\n  existingNode.parentNode?.insertBefore(newNode, existingNode);\n}\n\nexport function isPropAttribute(attrName: string) {\n  if (attrName.startsWith(\".\")) {\n    return true;\n  }\n\n  if (attrName.startsWith(\"{\") && attrName.endsWith(\"}\")) {\n    return true;\n  }\n\n  return false;\n}\n\nexport function isSpreadProp(attr: string) {\n  return attr.startsWith(\"...\");\n}\n\nexport function isMirrorProp(attr: string) {\n  return attr.startsWith(\"{\") && attr.endsWith(\"}\");\n}\n\nexport function isRegularProp(attr: string) {\n  return attr.startsWith(\".\");\n}\n\nexport function isEventAttribute(attrName: string) {\n  return attrName.startsWith(\"@\");\n}\n\nexport function componentHasPropByName(name: string, component: Component) {\n  return Object.keys(component?.props ?? {}).some((prop) => prop === name);\n}\n\nexport function extractAttributeName(attrName: string) {\n  return attrName\n    .replace(/^\\.\\.\\./, \"\")\n    .replace(/^\\./, \"\")\n    .replace(/^{/, \"\")\n    .replace(/}$/, \"\")\n    .replace(/:bind$/, \"\");\n}\n\nfunction dashToCamel(str: string) {\n  return str.toLowerCase().replace(/-([a-z])/g, (g) => g[1].toUpperCase());\n}\n\nexport function extractPropName(attrName: string) {\n  return dashToCamel(extractAttributeName(attrName));\n}\n\nexport function classNames(_: any) {\n  const classes = [];\n  for (let i = 0; i < arguments.length; i++) {\n    const arg = arguments[i];\n    if (!arg) continue;\n    const argType = typeof arg;\n    if (argType === \"string\" || argType === \"number\") {\n      classes.push(arg);\n    } else if (Array.isArray(arg)) {\n      if (arg.length) {\n        const inner = classNames.apply(null, arg);\n        if (inner) {\n          classes.push(inner);\n        }\n      }\n    } else if (argType === \"object\") {\n      if (arg.toString === Object.prototype.toString) {\n        for (let key in arg) {\n          if (Object.hasOwnProperty.call(arg, key) && arg[key]) {\n            classes.push(key);\n          }\n        }\n      } else {\n        classes.push(arg.toString());\n      }\n    }\n  }\n  return classes.join(\" \");\n}\n", "import { Context, evalGet } from \"..\";\nimport { classNames, extractAttributeName } from \"../util\";\n\ninterface AttributeDirectiveOptions {\n  element: Element;\n  context: Context;\n  attr: Attr;\n}\n\ninterface Is {\n  sameNameProperty: boolean;\n  bound: boolean;\n  spread: boolean;\n  componentProp: boolean;\n}\n\nexport class AttributeDirective {\n  element: Element;\n  context: Context;\n  expression: string;\n  attr: Attr;\n  extractedAttributeName: string;\n\n  previousClasses: string[] = [];\n  previousStyles: { [key: string]: string } = {};\n\n  is: Is = {\n    sameNameProperty: false,\n    bound: false,\n    spread: false,\n    componentProp: false,\n  };\n\n  constructor({ element, context, attr }: AttributeDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n    this.expression = attr.value;\n    this.attr = attr;\n    this.extractedAttributeName = extractAttributeName(attr.name);\n\n    this.is = {\n      sameNameProperty: attr.name.startsWith(\"{\") && attr.name.endsWith(\"}\"),\n      bound: attr.name.includes(\":bind\"),\n      spread: attr.name.startsWith(\"...\"),\n      componentProp: false,\n    };\n\n    if (this.is.sameNameProperty) {\n      this.expression = this.extractedAttributeName;\n    }\n\n    if (this.is.spread) {\n      this.expression = this.extractedAttributeName;\n    }\n\n    element.removeAttribute(attr.name);\n\n    if (this.is.bound) {\n      context.effect(this.update.bind(this));\n    } else {\n      this.update();\n    }\n  }\n\n  update() {\n    let value = evalGet(this.context.scope, this.expression, this.element);\n\n    if (this.is.spread && typeof value === \"object\") {\n      for (const [key, val] of Object.entries(value)) {\n        this.element.setAttribute(key, String(val));\n      }\n    } else if ((typeof value === \"object\" || Array.isArray(value)) && this.extractedAttributeName === \"class\") {\n      value = classNames(value);\n      const next = value.split(\" \");\n\n      // If we now have classes that are not already on the element, add them now.\n      // Remove classes that are no longer on the element.\n      const diff = next.filter((c: string) => !this.previousClasses.includes(c)).filter(Boolean);\n      const rm = this.previousClasses.filter((c) => !next.includes(c));\n\n      diff.forEach((c: string) => {\n        this.previousClasses.push(c);\n        this.element.classList.add(c);\n      });\n\n      rm.forEach((c) => {\n        this.previousClasses = this.previousClasses.filter((addedClass) => addedClass !== c);\n        this.element.classList.remove(c);\n      });\n    } else if (typeof value === \"object\" && this.extractedAttributeName === \"style\") {\n      const next = Object.keys(value);\n      const rm = Object.keys(this.previousStyles).filter((style) => !next.includes(style));\n\n      next.forEach((style) => {\n        this.previousStyles[style] = value[style];\n        // @ts-ignore\n        this.element.style[style] = value[style];\n      });\n\n      rm.forEach((style) => {\n        this.previousStyles[style] = \"\";\n        // @ts-ignore\n        this.element.style[style] = \"\";\n      });\n\n      this.previousStyles = value;\n    } else {\n      this.element.setAttribute(this.extractedAttributeName, value);\n    }\n  }\n}\n", "import { Context, evalGet } from \"..\";\n\ninterface EventDirectiveOptions {\n  element: Element;\n  context: Context;\n  attr: Attr;\n}\n\nexport class EventDirective {\n  element: Element;\n  context: Context;\n  expression: string;\n  attr: Attr;\n  eventCount = 0;\n\n  constructor({ element, context, attr }: EventDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n    this.expression = attr.value;\n    this.attr = attr;\n\n    const eventName = attr.name.replace(/^@/, \"\");\n    const parts = eventName.split(\".\");\n\n    this.element.addEventListener(parts[0], (event) => {\n      if (parts.includes(\"prevent\")) event.preventDefault();\n      if (parts.includes(\"stop\")) event.stopPropagation();\n      if (parts.includes(\"once\") && this.eventCount > 0) return;\n\n      this.eventCount++;\n\n      const handler = evalGet(context.scope, attr.value, element);\n      if (typeof handler === \"function\") {\n        handler(event);\n      }\n    });\n\n    element.removeAttribute(attr.name);\n  }\n}\n", "import { Block, Component, Context, createScopedContext, evalGet } from \"..\";\nimport { isArray, isObject } from \"../util\";\n\nconst forAliasRE = /([\\s\\S]*?)\\s+(?:in|of)\\s+([\\s\\S]*)/;\nconst forIteratorRE = /,([^,\\}\\]]*)(?:,([^,\\}\\]]*))?$/;\nconst stripParensRE = /^\\(|\\)$/g;\nconst destructureRE = /^[{[]\\s*((?:[\\w_$]+\\s*,?\\s*)+)[\\]}]$/;\n\ntype KeyToIndexMap = Map<any, number>;\n\nexport const _for = (el: Element, exp: string, ctx: Context, component?: Component, componentProps?: Record<string, any>, allProps?: Record<string, any>) => {\n  const inMatch = exp.match(forAliasRE);\n  if (!inMatch) {\n    console.warn(`invalid :for expression: ${exp}`);\n    return;\n  }\n\n  const nextNode = el.nextSibling;\n\n  const parent = el.parentElement!;\n  const anchor = new Text(\"\");\n  parent.insertBefore(anchor, el);\n  parent.removeChild(el);\n\n  const sourceExp = inMatch[2].trim();\n  let valueExp = inMatch[1].trim().replace(stripParensRE, \"\").trim();\n  let destructureBindings: string[] | undefined;\n  let isArrayDestructure = false;\n  let indexExp: string | undefined;\n  let objIndexExp: string | undefined;\n\n  let keyAttr = \"key\";\n  let keyExp = el.getAttribute(keyAttr) || el.getAttribute((keyAttr = \":key\")) || el.getAttribute((keyAttr = \":key:bind\"));\n  if (keyExp) {\n    el.removeAttribute(keyAttr);\n    if (keyAttr === \"key\") keyExp = JSON.stringify(keyExp);\n  }\n\n  let match: any;\n  if ((match = valueExp.match(forIteratorRE))) {\n    valueExp = valueExp.replace(forIteratorRE, \"\").trim();\n    indexExp = match[1].trim();\n    if (match[2]) {\n      objIndexExp = match[2].trim();\n    }\n  }\n\n  if ((match = valueExp.match(destructureRE))) {\n    destructureBindings = match[1].split(\",\").map((s: string) => s.trim());\n    isArrayDestructure = valueExp[0] === \"[\";\n  }\n\n  let mounted = false;\n  let blocks: Block[];\n  let childCtxs: Context[];\n  let keyToIndexMap: Map<any, number>;\n\n  const createChildContexts = (source: unknown): [Context[], KeyToIndexMap] => {\n    const map: KeyToIndexMap = new Map();\n    const ctxs: Context[] = [];\n\n    if (isArray(source)) {\n      for (let i = 0; i < source.length; i++) {\n        ctxs.push(createChildContext(map, source[i], i));\n      }\n    } else if (typeof source === \"number\") {\n      for (let i = 0; i < source; i++) {\n        ctxs.push(createChildContext(map, i + 1, i));\n      }\n    } else if (isObject(source)) {\n      let i = 0;\n      for (const key in source) {\n        ctxs.push(createChildContext(map, source[key], i++, key));\n      }\n    }\n\n    return [ctxs, map];\n  };\n\n  const createChildContext = (map: KeyToIndexMap, value: any, index: number, objKey?: string): Context => {\n    const data: any = {};\n    if (destructureBindings) {\n      destructureBindings.forEach((b, i) => (data[b] = value[isArrayDestructure ? i : b]));\n    } else {\n      data[valueExp] = value;\n    }\n    if (objKey) {\n      indexExp && (data[indexExp] = objKey);\n      objIndexExp && (data[objIndexExp] = index);\n    } else {\n      indexExp && (data[indexExp] = index);\n    }\n\n    const childCtx = createScopedContext(ctx, data);\n    const key = keyExp ? evalGet(childCtx.scope, keyExp, el) : index;\n    map.set(key, index);\n    childCtx.key = key;\n    return childCtx;\n  };\n\n  const mountBlock = (ctx: Context, ref: Node) => {\n    const block = new Block({ element: el, parentContext: ctx, replacementType: \"replace\", component, componentProps, allProps });\n    block.key = ctx.key;\n    block.insert(parent, ref);\n    return block;\n  };\n\n  ctx.effect(() => {\n    const source = evalGet(ctx.scope, sourceExp, el);\n    const prevKeyToIndexMap = keyToIndexMap;\n    [childCtxs, keyToIndexMap] = createChildContexts(source);\n    if (!mounted) {\n      blocks = childCtxs.map((s) => mountBlock(s, anchor));\n      mounted = true;\n    } else {\n      for (let i = 0; i < blocks.length; i++) {\n        if (!keyToIndexMap.has(blocks[i].key)) {\n          blocks[i].remove();\n        }\n      }\n\n      const nextBlocks: Block[] = [];\n      let i = childCtxs.length;\n      let nextBlock: Block | undefined;\n      let prevMovedBlock: Block | undefined;\n      while (i--) {\n        const childCtx = childCtxs[i];\n        const oldIndex = prevKeyToIndexMap.get(childCtx.key);\n        let block: Block;\n        if (oldIndex == null) {\n          // new\n          block = mountBlock(childCtx, nextBlock ? nextBlock.element : anchor);\n        } else {\n          // update\n          block = blocks[oldIndex];\n          Object.assign(block.context.scope, childCtx.scope);\n          if (oldIndex !== i) {\n            // moved\n            if (\n              blocks[oldIndex + 1] !== nextBlock ||\n              // If the next has moved, it must move too\n              prevMovedBlock === nextBlock\n            ) {\n              prevMovedBlock = block;\n              block.insert(parent, nextBlock ? nextBlock.element : anchor);\n            }\n          }\n        }\n        nextBlocks.unshift((nextBlock = block));\n      }\n      blocks = nextBlocks;\n    }\n  });\n\n  return nextNode;\n};\n", "import { Block, Component, Context, evalGet } from \"..\";\nimport { checkAndRemoveAttribute } from \"../util\";\n\ninterface Branch {\n  exp?: string | null;\n  el: Element;\n}\n\nexport function _if(el: Element, exp: string, ctx: Context, component?: Component, componentProps?: Record<string, any>, allProps?: Record<string, any>) {\n  const parent = el.parentElement!;\n  const anchor = new Comment(\":if\");\n\n  parent.insertBefore(anchor, el);\n\n  const branches: Branch[] = [{ exp, el }];\n\n  let elseEl: Element | null;\n  let elseExp: string | null;\n\n  while ((elseEl = el.nextElementSibling)) {\n    elseExp = null;\n\n    if (checkAndRemoveAttribute(elseEl, \":else\") === \"\" || (elseExp = checkAndRemoveAttribute(elseEl, \":else-if\"))) {\n      parent.removeChild(elseEl);\n      branches.push({ exp: elseExp, el: elseEl });\n    } else {\n      break;\n    }\n  }\n\n  const nextNode = el.nextSibling;\n  parent.removeChild(el);\n\n  let block: Block | undefined;\n  let activeBranchIndex = -1;\n\n  const removeActiveBlock = () => {\n    if (!block) { return; }\n\n    parent.insertBefore(anchor, block.element);\n    block.remove();\n    block = undefined;\n  };\n\n  ctx.effect(() => {\n    for (let i = 0; i < branches.length; i++) {\n      const { exp, el } = branches[i];\n\n      if (!exp || evalGet(ctx.scope, exp, el)) {\n        if (i !== activeBranchIndex) {\n          removeActiveBlock();\n          block = new Block({ element: el, parentContext: ctx, replacementType: \"replace\", component, componentProps, allProps });\n          block.insert(parent, anchor);\n          parent.removeChild(anchor);\n          activeBranchIndex = i;\n        }\n\n        return;\n      }\n    }\n\n    activeBranchIndex = -1;\n    removeActiveBlock();\n  });\n\n  return nextNode.parentElement;\n}\n", "import { Context, current, evalGet } from \"../\";\nimport { insertAfter, toDisplayString } from \"../util\";\n\ninterface InterpolationDirectiveOptions {\n  element: Text;\n  context: Context;\n}\n\nconst delims = /{{\\s?(.*?)\\s?}}/g;\n\nexport class InterpolationDirective {\n  element: Text;\n  context: Context;\n  textNodes: Map<string, Node[]> = new Map();\n\n  constructor({ element, context }: InterpolationDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n\n    this.findNodes();\n\n    this.textNodes.forEach((nodes, expression) => {\n      const trimmedExpression = expression.slice(2, -2).trim();\n\n      nodes.forEach((node) => {\n        const getter = (exp = trimmedExpression) => evalGet(this.context.scope, exp, element);\n\n        context.effect(() => {\n          node.textContent = toDisplayString(getter());\n        });\n      });\n    });\n  }\n\n  findNodes() {\n    const textContent = this.element.textContent.trim();\n    if (textContent?.match(delims)) {\n      const textNodes = textContent.split(/(\\{\\{\\s?[^}]+\\s?\\}\\})/g).filter(Boolean);\n      if (textNodes) {\n        let previousNode = this.element;\n\n        for (let i = 0; i < textNodes.length; i++) {\n          const textNode = textNodes[i];\n\n          if (textNode.match(/\\{\\{\\s?.+\\s?\\}\\}/)) {\n            const newNode = document.createTextNode(textNode);\n\n            if (i === 0) {\n              this.element.replaceWith(newNode);\n            } else {\n              insertAfter(newNode, previousNode);\n            }\n\n            previousNode = newNode;\n\n            if (this.textNodes.has(textNode)) {\n              this.textNodes.get(textNode).push(newNode);\n            } else {\n              this.textNodes.set(textNode, [newNode]);\n            }\n          } else {\n            const newNode = document.createTextNode(textNodes[i]);\n\n            if (i === 0) {\n              this.element.replaceWith(newNode);\n            } else {\n              insertAfter(newNode, previousNode);\n            }\n\n            previousNode = newNode;\n          }\n        }\n      }\n    }\n  }\n\n  update() {}\n}\n", "import { Context, evalGet } from \"..\";\n\ninterface ShowDirectiveOptions {\n  element: Element;\n  context: Context;\n  expression: string;\n}\n\nexport class ShowDirective {\n  element: Element;\n  context: Context;\n  expression: string;\n  originalDisplay: string;\n\n  constructor({ element, context, expression }: ShowDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n    this.expression = expression;\n    this.originalDisplay = getComputedStyle(this.element).display;\n\n    context.effect(this.update.bind(this));\n  }\n\n  update() {\n    const shouldShow = Boolean(evalGet(this.context.scope, this.expression, this.element));\n    // @ts-ignore\n    this.element.style.display = shouldShow ? this.originalDisplay : \"none\";\n  }\n}\n", "import { Block, Component, Context } from \"..\";\nimport { insertBefore } from \"../util\";\n\nexport function _teleport(el: Element, exp: string, ctx: Context, component?: Component, componentProps?: Record<string, any>, allProps?: Record<string, any>) {\n  const anchor = new Comment(\":teleport anchor\");\n  insertBefore(anchor, el);\n  const observed = new Comment(\":teleport\");\n  el.replaceWith(observed);\n  console.log(\"Creating new block with allProps\", component);\n\n  const target = document.querySelector(exp);\n  if (!target) {\n    console.warn(`teleport target not found: ${exp}`);\n    return;\n  }\n\n  // Prevent interpolations flashing before they can be compiled due to nextTick,\n  // which is apparently required.\n  // @ts-ignore\n  const originalDisplay = el.style.display;\n  // @ts-ignore\n  el.style.display = \"none\";\n\n  let block: Block;\n\n  target.appendChild(el);\n\n  const observer = new MutationObserver((mutationsList) => {\n    mutationsList.forEach((mutation) => {\n      mutation.removedNodes.forEach((removedNode) => {\n        if (removedNode.contains(observed)) {\n          if (block.element) block.remove();\n          observer.disconnect();\n        }\n      });\n    });\n  });\n\n  observer.observe(document.body, { childList: true, subtree: true });\n\n  // @ts-ignore\n  el.style.display = originalDisplay;\n\n  block = new Block({\n    element: el,\n    parentContext: ctx,\n    replacementType: \"replace\",\n    component,\n    componentProps,\n    allProps,\n  });\n\n  // Return the anchor so walk continues down the tree in the right order.\n  return anchor;\n}\n", "import { Context, evalGet, evalSet } from \"..\";\n\ninterface ValueDirectiveOptions {\n  element: Element;\n  context: Context;\n  expression: string;\n}\n\ntype SupportedModelType = \"text\" | \"checkbox\" | \"radio\" | \"number\" | \"password\" | \"color\";\n\nfunction isInput(element: Element): element is HTMLInputElement {\n  return element instanceof HTMLInputElement;\n}\n\nfunction isTextarea(element: Element): element is HTMLTextAreaElement {\n  return element instanceof HTMLTextAreaElement;\n}\n\nfunction isSelect(element: Element): element is HTMLSelectElement {\n  return element instanceof HTMLSelectElement;\n}\n\nexport class ValueDirective {\n  element: Element;\n  context: Context;\n  expression: string;\n  inputType: SupportedModelType;\n\n  constructor({ element, context, expression }: ValueDirectiveOptions) {\n    this.element = element;\n    this.context = context;\n    this.expression = expression;\n    this.inputType = element.getAttribute(\"type\") as SupportedModelType;\n\n    // Element -> Context\n    if (isInput(element)) {\n      switch (this.inputType) {\n        case \"text\":\n        case \"password\":\n        case \"number\":\n        case \"color\":\n          element.addEventListener(\"input\", () => {\n            const value = this.inputType === \"number\" ? (element.value ? parseFloat(element.value) : 0) : element.value;\n            evalSet(this.context.scope, expression, value);\n          });\n          break;\n\n        case \"checkbox\":\n          element.addEventListener(\"change\", (e: any) => {\n            evalSet(this.context.scope, expression, !!e.currentTarget.checked);\n          });\n          break;\n        case \"radio\":\n          element.addEventListener(\"change\", (e: any) => {\n            if (e.currentTarget.checked) {\n              evalSet(this.context.scope, expression, element.getAttribute(\"value\"));\n            }\n          });\n          break;\n        default:\n          break;\n      }\n    }\n\n    if (isTextarea(element)) {\n      element.addEventListener(\"input\", () => {\n        evalSet(this.context.scope, expression, element.value);\n      });\n    }\n\n    if (isSelect(element)) {\n      element.addEventListener(\"change\", () => {\n        evalSet(this.context.scope, expression, element.value);\n      });\n    }\n\n    // Context -> Element\n    context.effect(this.updateElementValue.bind(this));\n  }\n\n  updateElementValue() {\n    const value = evalGet(this.context.scope, this.expression, this.element);\n\n    if (isInput(this.element)) {\n      switch (this.inputType) {\n        case \"text\":\n        case \"password\":\n        case \"number\":\n        case \"color\":\n          this.element.value = value;\n          break;\n        case \"checkbox\":\n          this.element.checked = !!value;\n          break;\n        case \"radio\":\n          this.element.checked = this.element.value === value;\n          break;\n        default:\n          break;\n      }\n    }\n\n    if (isTextarea(this.element)) {\n      this.element.value = value;\n    }\n\n    if (isSelect(this.element)) {\n      this.element.value = value;\n    }\n  }\n}\n", "interface EffectOptions {\n  lazy?: boolean;\n}\n\ninterface EffectFunction {\n  active: boolean;\n  handler: () => void;\n  refs: Set<EffectFunction>[];\n}\n\ntype Effects = Set<EffectFunction>;\ntype EffectsMap = Map<PropertyKey, Effects>;\ntype TargetMap = WeakMap<any, EffectsMap>;\n\nconst targetMap: TargetMap = new WeakMap();\nconst effectStack: (EffectFunction | undefined)[] = [];\n\nexport function track<T>(target: T, key: PropertyKey) {\n  const activeEffect = effectStack[effectStack.length - 1];\n\n  if (!activeEffect) return;\n\n  let effectsMap = targetMap.get(target);\n  if (!effectsMap)\n    targetMap.set(target, (effectsMap = new Map() as EffectsMap));\n\n  let effects = effectsMap.get(key);\n  if (!effects) effectsMap.set(key, (effects = new Set<EffectFunction>()));\n\n  if (!effects.has(activeEffect)) {\n    effects.add(activeEffect);\n    activeEffect.refs.push(effects);\n  }\n}\n\nexport function trigger(target: any, key: PropertyKey) {\n  const effectsMap = targetMap.get(target);\n  if (!effectsMap) return;\n\n  const scheduled = new Set<EffectFunction>();\n\n  effectsMap.get(key)?.forEach((effect) => {\n    scheduled.add(effect);\n  });\n\n  scheduled.forEach(run);\n}\n\nfunction stop(effect: EffectFunction) {\n  if (effect.active) cleanup(effect);\n  effect.active = false;\n}\n\nfunction start(effect: EffectFunction) {\n  if (!effect.active) {\n    effect.active = true;\n    run(effect);\n  }\n}\n\nfunction run(effect: EffectFunction): unknown {\n  if (!effect.active) return;\n\n  if (effectStack.includes(effect)) return;\n\n  cleanup(effect);\n\n  let val: unknown;\n\n  try {\n    effectStack.push(effect);\n    val = effect.handler();\n  } finally {\n    effectStack.pop();\n  }\n\n  return val;\n}\n\nfunction cleanup(effect: EffectFunction) {\n  const { refs } = effect;\n\n  if (refs.length) {\n    for (const ref of refs) {\n      ref.delete(effect);\n    }\n  }\n\n  refs.length = 0;\n}\n\nexport function effect(handler: () => void, opts: EffectOptions = {}) {\n  const { lazy } = opts;\n  const newEffect: EffectFunction = {\n    active: !lazy,\n    handler,\n    refs: [],\n  };\n\n  run(newEffect);\n\n  return {\n    start: () => {\n      start(newEffect);\n    },\n    stop: () => {\n      stop(newEffect);\n    },\n    toggle: () => {\n      if (newEffect.active) {\n        stop(newEffect);\n      } else {\n        start(newEffect);\n      }\n      return newEffect.active;\n    },\n  };\n}\n", "import { isObject } from \"../util\";\nimport { effect } from \"./effect\";\n\nconst $computed = Symbol(\"computed\");\n\nexport type Computed<T> = {\n  readonly value: T;\n  readonly [$computed]: true;\n};\n\nexport function isComputed<T>(value: unknown): value is Computed<T> {\n  return isObject(value) && value[$computed];\n}\n\nexport function computed<T>(getter: () => T): Computed<T> {\n  const ref = {\n    get value(): T {\n      return getter();\n    },\n    [$computed]: true,\n  } as const;\n\n  effect(() => {\n    getter();\n  });\n\n  return ref;\n}\n", "import { isObject } from \"../util\";\nimport { track, trigger } from \"./effect\";\nimport { Reactive, reactive } from \"./reactive\";\n\nexport const $ref = Symbol(\"ref\");\n\nexport type Ref<T> = {\n  value: T;\n  [$ref]: true;\n};\n\nexport function isRef<T>(value: unknown): value is Ref<T> {\n  return isObject(value) && !!value[$ref];\n}\n\nexport function ref<T>(value: T = null as unknown as T): Ref<T> {\n  if (isObject(value)) {\n    // @ts-ignore\n    return isRef(value) ? (value as Ref<T>) : (reactive(value) as Reactive<T>);\n  }\n\n  const result = { value, [$ref]: true };\n\n  return new Proxy(result, {\n    get(target: object, key: string | symbol, receiver: any) {\n      const val = Reflect.get(target, key, receiver);\n      track(result, \"value\");\n      return val;\n    },\n    set(target: object, key: string | symbol, value: unknown) {\n      const oldValue = target[key];\n      if (oldValue !== value) {\n        const success = Reflect.set(target, key, value);\n        if (success) {\n          trigger(result, \"value\");\n        }\n      }\n      return true;\n    },\n  }) as Ref<T>;\n}\n", "import { isObject } from \"../util\";\nimport { track, trigger } from \"./effect\";\nimport { ref } from \"./ref\";\n\nconst $reactive = Symbol(\"reactive\");\n\nexport type Reactive<T> = T & { [$reactive]: true };\n\nexport function isReactive<T extends object>(\n  value: unknown,\n): value is Reactive<T> {\n  return isObject(value) && !!value[$reactive];\n}\n\nexport function reactive<T>(value: T): Reactive<T> {\n  // @ts-ignore\n  if (!isObject(value)) return ref(value) as Reactive<unknown>;\n  if (value[$reactive]) return value as Reactive<T>;\n\n  value[$reactive] = true;\n\n  Object.keys(value).forEach((key) => {\n    if (isObject(value[key])) {\n      value[key] = reactive(value[key]);\n    }\n  });\n\n  return new Proxy(value, reactiveProxyHandler()) as Reactive<T>;\n}\n\nfunction reactiveProxyHandler() {\n  return {\n    deleteProperty(target: object, key: string | symbol) {\n      const had = Reflect.has(target, key);\n      const result = Reflect.deleteProperty(target, key);\n      if (had) trigger(target, key);\n      return result;\n    },\n    get(target: object, key: string | symbol) {\n      track(target, key);\n      return Reflect.get(target, key);\n    },\n    set(target: object, key: string | symbol, value: unknown) {\n      if (target[key] === value) return true;\n      let newObj = false;\n\n      if (isObject(value) && !isObject(target[key])) {\n        newObj = true;\n      }\n\n      if (Reflect.set(target, key, value)) {\n        trigger(target, key);\n      }\n\n      if (newObj) {\n        target[key] = reactive(target[key]);\n      }\n\n      return true;\n    },\n  };\n}\n", "import { isComputed } from \"./computed\";\nimport { isRef } from \"./ref\";\n\nexport function unwrap(value: unknown) {\n  if (isRef(value) || isComputed(value)) {\n    return value.value;\n  }\n\n  if (typeof value === \"function\") {\n    return value();\n  }\n\n  return value;\n}\n", "import { pathToRegexp } from \"path-to-regexp\";\nimport { Route, RouteExpression, RouteMatch } from \".\";\nimport { Plugin } from \"..\";\nimport { App, Block, Component, current } from \"../..\";\nimport { reactive } from \"../../reactivity/reactive\";\nimport { unwrap } from \"../../reactivity/unwrap\";\nimport { html } from \"../../util\";\n\nexport const activeRouters = new Set<RouterPlugin>();\n\nexport function getRouter(): RouterPlugin | undefined {\n  return current.componentBlock ? [...activeRouters].find((router) => router.app === current.componentBlock.context.app) : undefined;\n}\n\nconst link = {\n  template: html`<a {href:bind} @click=\"go\" .class:bind=\"classes\"><slot /></a>`,\n  props: { href: { default: \"#\" } },\n  main({ href }: { href: string }) {\n    const go = (e: Event) => {\n      e.preventDefault();\n\n      activeRouters.forEach((router) => {\n        router.doRouteChange(unwrap(href as unknown) as string);\n      });\n    };\n\n    const classes = reactive({ \"router-link\": true });\n\n    return { go, classes, href };\n  },\n};\n\nasync function runEnterTransition(enter: () => boolean | Promise<boolean>): Promise<boolean> {\n  return await enter();\n}\n\nconst canEnterRoute = async (route: Route) => {\n  if (route.beforeEnter) {\n    return await runEnterTransition(route.beforeEnter);\n  }\n  return true;\n};\n\nconst maybeRedirectRoute = (route: Route) => {\n  if (route.redirectTo) {\n    activeRouters.forEach((plugin) => plugin.doRouteChange(route.redirectTo));\n  }\n};\n\nexport class RouterPlugin implements Plugin {\n  app: App;\n  routes: Route[] = [];\n  pathExpressions = new Map<string, RouteExpression>();\n  lastPath = \"/\";\n  knownRouterViews = new Map<Element, Block>();\n  knownRouterViewNames = new Map<string, Element>();\n  populatedRouterViews = new Map<Element, { block: Block; route: Route }>();\n\n  constructor(routes: Route[] = []) {\n    this.routes = routes;\n  }\n\n  use(app: App, ..._: any[]) {\n    this.app = app;\n    this.app.register(\"router-link\", link);\n\n    window.addEventListener(\"popstate\", this.onHistoryEvent.bind(this));\n    window.addEventListener(\"pushstate\", this.onHistoryEvent.bind(this));\n    window.addEventListener(\"load\", this.onHistoryEvent.bind(this));\n\n    for (const route of this.routes) {\n      this.cacheRouteExpression(route);\n    }\n\n    this.lastPath = `${location.pathname}${location.search}`;\n    window.history.replaceState({}, \"\", this.lastPath);\n\n    activeRouters.add(this);\n  }\n\n  compile(element: Element) {\n    if (element.nodeType === Node.ELEMENT_NODE && element.nodeName === \"ROUTER-VIEW\" && !this.knownRouterViews.has(element) && current.componentBlock) {\n      this.knownRouterViews.set(element, current.componentBlock);\n      this.knownRouterViewNames.set(element.getAttribute(\"name\")?.trim() || \"\", element);\n    }\n  }\n\n  onHistoryEvent(e: PopStateEvent | Event) {\n    e.preventDefault();\n    e.stopImmediatePropagation();\n\n    // @ts-ignore\n    const path = new URL(e.currentTarget.location.href).pathname;\n\n    if (e.type === \"load\") {\n      window.history.replaceState({}, \"\", this.lastPath);\n    } else if (e.type === \"pushstate\") {\n      window.history.replaceState({}, \"\", path);\n    } else if (e.type === \"popstate\") {\n      window.history.replaceState({}, \"\", path);\n    }\n\n    this.lastPath = path;\n\n    const matches = this.getMatchesForURL(path);\n    this.applyMatches(matches);\n  }\n\n  doRouteChange(to: string) {\n    window.history.pushState({}, \"\", to);\n    const matches = this.getMatchesForURL(`${location.pathname}${location.search}`);\n    this.applyMatches(matches);\n  }\n\n  getMatchesForURL(url: string): RouteMatch[] {\n    let matches: RouteMatch[] = [];\n\n    const matchRoutes = (routes: Route[], parentPath: string = \"\", previousParents = []): RouteMatch[] => {\n      let parents = [];\n\n      for (const route of routes) {\n        parents.push(route);\n        const path = `${parentPath}${route.path}`.replace(/\\/\\//g, \"/\");\n        const match = this.getPathMatch(path, url);\n        if (match) matches.push({ match, parents: [...previousParents, ...parents] });\n        if (route.children?.length) {\n          matchRoutes(route.children, path, [...previousParents, ...parents]);\n          parents = [];\n        }\n      }\n\n      return matches;\n    };\n    matches = matchRoutes(this.routes);\n    return matches;\n  }\n\n  /**\n   * getRouteExpression takes a path like \"/users/:id\" and returns a regex\n   * and an array of params that match the path.\n   * \"/users/:id\" => { regex: /^\\/users\\/([^\\/]+)\\?jwt=(\\w)$/, params: [\"id\"], query: [\"jwt\"] }\n   */\n  getRouteExpression(path: string, route: Route): RouteExpression {\n    if (this.pathExpressions.has(path)) return this.pathExpressions.get(path);\n\n    const params = [];\n    const regex = pathToRegexp(path, params, { strict: false, sensitive: false, end: true });\n    const expression = { regex, params, path, route };\n    this.pathExpressions.set(path, expression);\n    return expression;\n  }\n\n  /**\n   *\n   * @param path A path like /foo/bar/:id\n   * @param url A url like /foo/bar/1234\n   * @returns A RouteExpression if the URL matches the regex cached for @param path, null otherwise.\n   */\n  getPathMatch(path: string, url: string): RouteExpression | null {\n    if (this.pathExpressions.get(path)) {\n      const match = this.pathExpressions.get(path).regex.exec(url);\n      if (match) {\n        return this.pathExpressions.get(path);\n      }\n    }\n\n    return null;\n  }\n\n  async applyMatches(matches: RouteMatch[] | null) {\n    if (!matches) return;\n\n    const usedRouterViews = new Set<Element>();\n\n    const renderRoutes = async (routeChain: Route[], rootNode?: Element) => {\n      for (const route of routeChain) {\n        if (route.view) {\n          const viewNode = this.knownRouterViewNames.get(route.view);\n          if (viewNode && (await canEnterAndRenderRoute(viewNode, route))) {\n            continue;\n          }\n        } else if (rootNode && (await canEnterAndRenderRoute(rootNode, route))) {\n          continue;\n        }\n      }\n    };\n\n    const canEnterAndRenderRoute = async (node: Element, route: Route) => {\n      const canEnter = await canEnterRoute(route);\n      if (canEnter) {\n        renderRouteAtNode(node, route);\n        return true;\n      } else {\n        if (route.componentFallback) {\n          renderRouteAtNode(node, route, route.componentFallback);\n        } else {\n          maybeRedirectRoute(route);\n        }\n\n        return false;\n      }\n    };\n\n    const renderRouteAtNode = (node: Element, route: Route, component?: Component) => {\n      if (!usedRouterViews.has(node) || this.populatedRouterViews.get(node)?.route !== route) {\n        const div = document.createElement(\"div\");\n        node.replaceChildren(div);\n\n        const target = div.parentElement;\n\n        const block = new Block({\n          element: div,\n          component: component ? component : route.component,\n          replacementType: \"replaceChildren\",\n          parentContext: current.componentBlock.context,\n        });\n\n        target.replaceChild(block.element, div);\n\n        this.populatedRouterViews.set(node, { block, route });\n\n        usedRouterViews.add(node);\n      }\n    };\n\n    for (const match of matches) {\n      const routeChain = [...match.parents, match.match.route];\n      const uniqueRouteChain = routeChain.filter((route, index, self) => index === self.findIndex((r) => r.path === route.path));\n      const rootNode = this.knownRouterViewNames.get(\"\") ?? null;\n      await renderRoutes(uniqueRouteChain, rootNode);\n    }\n\n    // Clean up stale views\n    for (const node of this.knownRouterViews.keys()) {\n      if (!usedRouterViews.has(node) && this.populatedRouterViews.has(node)) {\n        const entry = this.populatedRouterViews.get(node);\n        if (entry) {\n          entry.block.teardown();\n          this.populatedRouterViews.delete(node);\n        }\n      }\n    }\n  }\n\n  cacheRouteExpression(route: Route, parentPath: string = \"\") {\n    const path = `${parentPath}${route.path}`.replace(/\\/\\//g, \"/\");\n    this.getRouteExpression(path, route);\n    if (route.children?.length) {\n      route.children.forEach((child) => {\n        this.cacheRouteExpression(child, path);\n      });\n    }\n  }\n\n  destroy() {\n    window.removeEventListener(\"popstate\", this.onHistoryEvent.bind(this));\n    window.removeEventListener(\"pushstate\", this.onHistoryEvent.bind(this));\n    window.removeEventListener(\"load\", this.onHistoryEvent.bind(this));\n  }\n}\n", "import { AttributeDirective } from \"./directives/attribute\";\nimport { EventDirective } from \"./directives/event\";\nimport { _for } from \"./directives/for\";\nimport { _if } from \"./directives/if\";\nimport { InterpolationDirective } from \"./directives/interpolation\";\nimport { ShowDirective } from \"./directives/show\";\nimport { _teleport } from \"./directives/teleport\";\nimport { ValueDirective } from \"./directives/value\";\nimport { Plugin } from \"./plugins\";\nimport { isComputed } from \"./reactivity/computed\";\nimport { effect as _effect } from \"./reactivity/effect\";\nimport { reactive } from \"./reactivity/reactive\";\nimport { isRef } from \"./reactivity/ref\";\nimport {\n  checkAndRemoveAttribute,\n  componentHasPropByName,\n  extractPropName,\n  findSlotNodes,\n  findTemplateNodes,\n  isElement,\n  isEventAttribute,\n  isMirrorProp,\n  isObject,\n  isPropAttribute,\n  isRegularProp,\n  isSpreadProp,\n  isText,\n  Slot,\n  stringToElement,\n  Template,\n  toDisplayString,\n} from \"./util\";\n\nexport * from \"./plugins\";\nexport * from \"./plugins/router\";\n\nexport function provide(key: string, value: unknown) {\n  if (!current.componentBlock) {\n    console.warn(\"Can't provide: no current component block\");\n  }\n\n  current.componentBlock.provides.set(key, value);\n}\n\nexport function inject(key: string) {\n  if (!current.componentBlock) {\n    console.warn(\"Can't inject: no current component block\");\n  }\n\n  let c = current.componentBlock;\n\n  while (c) {\n    if (c.provides.has(key)) {\n      return c.provides.get(key);\n    }\n\n    c = c.parentComponentBlock;\n  }\n\n  return undefined;\n}\n\nexport class App {\n  root: Block;\n  registry = new Map<string, Component>();\n  plugins = new Set<Plugin>();\n\n  register(name: string, component: Component) {\n    this.registry.set(name, component);\n  }\n\n  use(plugin: Plugin, ...config: any[]) {\n    this.plugins.add(plugin);\n    plugin.use(this, ...config);\n  }\n\n  getComponent(tag: string) {\n    return this.registry.get(tag);\n  }\n\n  mount(component: Component, target: string | HTMLElement = \"body\", props: Record<string, any> = {}) {\n    const root = typeof target === \"string\" ? (document.querySelector(target) as HTMLElement) : target;\n    const { display } = root.style;\n    root.style.display = \"none\";\n    this._mount(component, root, props);\n    root.style.display = display;\n    return this.root;\n  }\n\n  private _mount(component: Component, target: HTMLElement, props: Record<string, any>) {\n    const parentContext = createContext({ app: this });\n\n    if (props) {\n      parentContext.scope = reactive(props);\n      bindContextMethods(parentContext.scope);\n    }\n\n    parentContext.scope.$isRef = isRef;\n    parentContext.scope.$isComputed = isComputed;\n\n    return new Block({\n      app: this,\n      element: target,\n      parentContext,\n      component,\n      isRoot: true,\n      componentProps: props,\n      replacementType: \"replaceChildren\",\n    });\n  }\n\n  unmount() {\n    this.root.teardown();\n  }\n}\n\nexport interface Context {\n  key?: any;\n  app: App;\n  scope: Record<string, any>;\n  blocks: Block[];\n  effects: Array<ReturnType<typeof _effect>>;\n  effect: typeof _effect;\n  slots: Slot[];\n  templates: Template[];\n}\n\ninterface CreateContextOptions {\n  parentContext?: Context;\n  app?: App;\n}\n\nexport function createContext({ parentContext, app }: CreateContextOptions): Context {\n  const context: Context = {\n    app: app ? app : parentContext?.app ? parentContext.app : null,\n    scope: parentContext ? parentContext.scope : reactive({}),\n    blocks: [],\n    effects: [],\n    slots: [],\n    templates: parentContext ? parentContext.templates : [],\n    effect: (handler: () => void) => {\n      const e = _effect(handler);\n      context.effects.push(e);\n      return e;\n    },\n  };\n\n  return context;\n}\n\nexport const createScopedContext = (ctx: Context, data = {}): Context => {\n  const parentScope = ctx.scope;\n  const mergedScope = Object.create(parentScope);\n  Object.defineProperties(mergedScope, Object.getOwnPropertyDescriptors(data));\n\n  let proxy: any;\n\n  proxy = reactive(\n    new Proxy(mergedScope, {\n      set(target, key, val, receiver) {\n        // when setting a property that doesn't exist on current scope,\n        // do not create it on the current scope and fallback to parent scope.\n        if (receiver === proxy && !target.hasOwnProperty(key)) {\n          return Reflect.set(parentScope, key, val);\n        }\n\n        return Reflect.set(target, key, val, receiver);\n      },\n    }),\n  );\n\n  bindContextMethods(proxy);\n\n  const out: Context = {\n    ...ctx,\n    scope: {\n      ...ctx.scope,\n      ...proxy,\n    },\n  };\n\n  return out;\n};\n\nfunction bindContextMethods(scope: Record<string, any>) {\n  for (const key of Object.keys(scope)) {\n    if (typeof scope[key] === \"function\") {\n      scope[key] = scope[key].bind(scope);\n    }\n  }\n}\n\nfunction mergeProps(props: Record<string, any>, defaultProps: Record<string, any>) {\n  const merged = {};\n\n  Object.keys(defaultProps).forEach((defaultProp) => {\n    const propValue = props.hasOwnProperty(defaultProp) ? props[defaultProp] : defaultProps[defaultProp]?.default;\n\n    merged[defaultProp] = reactive(typeof propValue === \"function\" ? propValue() : propValue);\n  });\n\n  return merged;\n}\n\nexport interface Component {\n  template: string;\n  props?: Record<string, any>;\n  main?: (props?: Record<string, any>) => Record<string, any> | void;\n}\n\ninterface Current {\n  componentBlock?: Block;\n}\n\nexport const current: Current = { componentBlock: undefined };\n\ninterface BlockOptions {\n  element: Element;\n  isRoot?: boolean;\n  replacementType?: \"replace\" | \"replaceChildren\";\n  componentProps?: Record<string, any>;\n  allProps?: Record<string, any>;\n  parentContext?: Context;\n  app?: App;\n  component?: Component;\n  parentComponentBlock?: Block;\n  templates?: Template[];\n}\n\nexport class Block {\n  element: Element;\n  context: Context;\n  parentContext: Context;\n  component: Component;\n  provides = new Map<string, any>();\n  parentComponentBlock: Block | undefined;\n  componentProps: Record<string, any>;\n  allProps: Record<string, any>;\n\n  isFragment: boolean;\n  start?: Text;\n  end?: Text;\n  key?: any;\n\n  constructor(opts: BlockOptions) {\n    this.isFragment = opts.element instanceof HTMLTemplateElement;\n    this.parentComponentBlock = opts.parentComponentBlock;\n\n    if (opts.component) {\n      current.componentBlock = this;\n      this.element = stringToElement(opts.component.template);\n    } else if (this.isFragment) {\n      this.element = (opts.element as HTMLTemplateElement).content.cloneNode(true) as Element;\n    } else if (typeof opts.element === \"string\") {\n      this.element = stringToElement(opts.element);\n    } else {\n      this.element = opts.element.cloneNode(true) as Element;\n      opts.element.replaceWith(this.element);\n    }\n\n    if (opts.isRoot) {\n      this.context = opts.parentContext;\n      opts.app.root = this;\n    } else {\n      this.parentContext = opts.parentContext ? opts.parentContext : createContext({});\n      this.parentContext.blocks.push(this);\n      this.context = createContext({ parentContext: opts.parentContext, app: opts.app });\n    }\n\n    if (opts.component) {\n      this.componentProps = mergeProps(opts.componentProps ?? {}, opts.component.props ?? {});\n\n      if (opts.component.main) {\n        this.context.scope = {\n          ...(opts.component.main(this.componentProps) || {}),\n        };\n      }\n    }\n\n    opts.allProps?.forEach((prop: any) => {\n      if (prop.isBind) {\n        this.context.effect(() => {\n          let newValue: unknown;\n\n          if (prop.isSpread) {\n            const spreadProps = evalGet(this.parentContext.scope, prop.extractedName);\n            if (isObject(spreadProps)) {\n              Object.keys(spreadProps).forEach((key) => {\n                newValue = spreadProps[key];\n                this.setProp(key, newValue);\n              });\n            }\n          } else {\n            newValue = prop.isMirror ? evalGet(this.parentContext.scope, prop.extractedName) : evalGet(this.parentContext.scope, prop.exp);\n            this.setProp(prop.extractedName, newValue);\n          }\n        });\n      }\n    });\n\n    // Capture slots\n    this.context.slots = findSlotNodes(this.element);\n    this.context.templates = opts.templates ?? [];\n\n    // Put templates into slots\n    this.context.slots.forEach((slot) => {\n      const template = this.context.templates.find((t) => t.targetSlotName === slot.name);\n\n      if (template) {\n        const templateContents = template.node.content.cloneNode(true);\n        slot.node.replaceWith(templateContents);\n      }\n    });\n\n    this.context.scope.$isRef = isRef;\n    this.context.scope.$isComputed = isComputed;\n\n    walk(this.element, this.context);\n\n    if (opts.component) {\n      if (opts.replacementType === \"replace\") {\n        if (opts.element instanceof HTMLElement) {\n          opts.element.replaceWith(this.element);\n        }\n      } else if (opts.element instanceof HTMLElement) {\n        opts.element.replaceChildren(this.element);\n      }\n    }\n  }\n\n  setProp(name: string, value: unknown) {\n    if (isRef(this.componentProps[name])) {\n      this.componentProps[name].value = value;\n    } else {\n      this.componentProps[name] = value;\n    }\n  }\n\n  insert(parent: Element, anchor: Node | null = null) {\n    if (this.isFragment) {\n      if (this.start) {\n        // Already inserted, moving\n        let node: Node | null = this.start;\n        let next: Node | null;\n\n        while (node) {\n          next = node.nextSibling;\n          parent.insertBefore(node, anchor);\n\n          if (node === this.end) {\n            break;\n          }\n\n          node = next;\n        }\n      } else {\n        this.start = new Text(\"\");\n        this.end = new Text(\"\");\n\n        parent.insertBefore(this.end, anchor);\n        parent.insertBefore(this.start, this.end);\n        parent.insertBefore(this.element, this.end);\n      }\n    } else {\n      parent.insertBefore(this.element, anchor);\n    }\n  }\n\n  remove() {\n    if (this.parentContext) {\n      const i = this.parentContext.blocks.indexOf(this);\n\n      if (i > -1) {\n        this.parentContext.blocks.splice(i, 1);\n      }\n    }\n\n    if (this.start) {\n      const parent = this.start.parentNode!;\n      let node: Node | null = this.start;\n      let next: Node | null;\n\n      while (node) {\n        next = node.nextSibling;\n        parent.removeChild(node);\n\n        if (node === this.end) {\n          break;\n        }\n\n        node = next;\n      }\n    } else {\n      this.element.remove();\n    }\n\n    this.teardown();\n  }\n\n  teardown() {\n    this.context.blocks.forEach((block) => {\n      block.teardown();\n    });\n\n    this.context.effects.forEach((e) => e.stop());\n  }\n}\n\nfunction isComponent(element: Element, context: Context) {\n  return !!context.app.getComponent(element.tagName.toLowerCase());\n}\n\nfunction warnInvalidDirectives(node: Element, directives: string[]): boolean {\n  if (directives.every((d) => node.hasAttribute(d))) {\n    console.warn(`These directives cannot be used together on the same node:`, directives);\n    console.warn(\"Node ignored:\", node);\n    return true;\n  }\n\n  return false;\n}\n\nfunction walk(node: Node, context: Context) {\n  if (isText(node)) {\n    new InterpolationDirective({ element: node, context });\n    return;\n  }\n\n  if (!isElement(node)) { return; }\n\n  let exp: string | null;\n\n  const handleDirectives = (node: Element, context: Context, component?: Component, componentProps?: Record<string, any>, allProps?: any[]) => {\n    if (warnInvalidDirectives(node, [\":if\", \":for\"])) return;\n    if (warnInvalidDirectives(node, [\":for\", \":teleport\"])) return;\n    if (warnInvalidDirectives(node, [\":if\", \":teleport\"])) return;\n\n    // e.g. <div :scope=\"{ open: true }\" />\n    // In this case, the scope is merged into context.scope and will overwrite\n    // anything returned from `main`.\n    if ((exp = checkAndRemoveAttribute(node, \":scope\"))) {\n      const scope = evalGet(context.scope, exp, node);\n      if (typeof scope === \"object\") {\n        Object.assign(context.scope, scope);\n        // context = createScopedContext(context, scope);\n      }\n    }\n\n    if ((exp = checkAndRemoveAttribute(node, \":if\"))) {\n      return _if(node, exp, context, component, componentProps, allProps);\n    }\n    if ((exp = checkAndRemoveAttribute(node, \":for\"))) {\n      return _for(node, exp, context, component, componentProps, allProps);\n    }\n    if ((exp = checkAndRemoveAttribute(node, \":teleport\"))) {\n      return _teleport(node, exp, context, component, componentProps, allProps);\n    }\n    if ((exp = checkAndRemoveAttribute(node, \":show\"))) {\n      new ShowDirective({ element: node, context, expression: exp });\n    }\n    if ((exp = checkAndRemoveAttribute(node, \":ref\"))) {\n      context.scope[exp].value = node;\n    }\n    if ((exp = checkAndRemoveAttribute(node, \":value\"))) {\n      new ValueDirective({ element: node, context, expression: exp });\n    }\n    if ((exp = checkAndRemoveAttribute(node, \":html\"))) {\n      const htmlExp = exp;\n\n      context.effect(() => {\n        const result = evalGet(context.scope, htmlExp, node);\n        if (result instanceof Element) {\n          node.replaceChildren();\n          node.append(result);\n        } else {\n          node.innerHTML = result;\n        }\n      });\n    }\n    if ((exp = checkAndRemoveAttribute(node, \":text\"))) {\n      const textExp = exp;\n\n      context.effect(() => {\n        node.textContent = toDisplayString(evalGet(context.scope, textExp, node));\n      });\n    }\n  };\n\n  const processAttributes = (node: Element, component?: Component) => Array.from(node.attributes)\n  .filter((attr) => isSpreadProp(attr.name) || isMirrorProp(attr.name) || (isRegularProp(attr.name) && componentHasPropByName(extractPropName(attr.name), component)))\n  .map((attr) => ({\n    isMirror: isMirrorProp(attr.name),\n    isSpread: isSpreadProp(attr.name),\n    isBind: attr.name.includes(\"bind\"),\n    originalName: attr.name,\n    extractedName: extractPropName(attr.name),\n    exp: attr.value,\n    value: isMirrorProp(attr.name) ? evalGet(context.scope, extractPropName(attr.name), node) : attr.value ? evalGet(context.scope, attr.value, node) : undefined,\n  }));\n\n  if (isComponent(node, context)) {\n    const component = context.app.getComponent(node.tagName.toLowerCase());\n    const allProps = processAttributes(node, component);\n\n    const componentProps = allProps.reduce((acc, { isSpread, isMirror, extractedName, value }) => {\n      if (isSpread) {\n        const spread = evalGet(context.scope, extractedName, node);\n        if (isObject(spread)) Object.assign(acc, spread);\n      } else if (isMirror) {\n        acc[extractedName] = evalGet(context.scope, extractedName, node);\n      } else {\n        acc[extractedName] = value;\n      }\n      return acc;\n    }, {});\n\n    const next = handleDirectives(node, context, component, componentProps, allProps);\n    if (next) return next;\n\n    const templates = findTemplateNodes(node);\n\n    return new Block({\n      element: node,\n      app: current.componentBlock.context.app,\n      // parentContext: context,\n      component,\n      replacementType: \"replace\",\n      parentComponentBlock: current.componentBlock,\n      templates,\n      componentProps,\n      allProps,\n    }).element;\n  }\n\n  const next = handleDirectives(node, context);\n  if (next) return next;\n\n  Array.from(node.attributes).forEach((attr) => {\n    if (isPropAttribute(attr.name)) {\n      new AttributeDirective({ element: node, context, attr });\n    }\n\n    if (isEventAttribute(attr.name)) {\n      new EventDirective({ element: node, context, attr });\n    }\n  });\n\n  walkChildren(node, context);\n}\n\nfunction walkChildren(node: Node, context: Context) {\n  let child = node.firstChild;\n\n  while (child) {\n    child = walk(child, context) || child.nextSibling;\n  }\n}\n\nconst evalFuncCache: Record<string, Function> = {};\n\nexport function evalGet(scope: any, exp: string, el?: Node) {\n  if (!exp.trim()) return undefined;\n  return execute(scope, `const ___value = (${exp.trim()}); return ___value;`, el);\n}\n\nexport function evalSet(scope: any, exp: string, value: unknown) {\n  value = typeof value === \"string\" ? `\"${value}\"` : value;\n  return execute(scope, `const ___target = (${exp.trim()}); return $isRef(___target) ? ___target.value = ${value} : ___target = ${value};`, null, false);\n}\n\nfunction execute(scope: any, exp: string, el?: Node, flatRefs = true) {\n  const newScope = flatRefs ? flattenRefs(scope) : scope;\n  const fn = evalFuncCache[exp] || (evalFuncCache[exp] = toFunction(exp));\n\n  try {\n    return fn(newScope, el);\n  } catch (e) {\n    console.warn(`Error evaluating expression: \"${exp}\":`);\n    console.error(e);\n  }\n}\n\n// Function to convert expression strings to functions\nfunction toFunction(exp: string) {\n  try {\n    return new Function(\"$data\", \"$el\", `with($data){${exp}}`);\n  } catch (e) {\n    console.error(`${(e as Error).message} in expression: ${exp}`);\n    return () => {};\n  }\n}\n\n// Map all ref properties in scope to their `.value`\nfunction flattenRefs(scope: any): any {\n  const mapped = {};\n\n  for (const key in scope) {\n    if (scope.hasOwnProperty(key)) {\n      // Check if the value is a Ref\n      mapped[key] = isRef(scope[key]) ? scope[key].value : scope[key];\n    }\n  }\n  return mapped;\n}\n", "import { App } from \".\";\nimport { computed } from \"./reactivity/computed\";\nimport { reactive } from \"./reactivity/reactive\";\nimport { ref } from \"./reactivity/ref\";\nimport { html } from \"./util\";\n\n// ------------------------------------------------\n// Slots, multiple default and named, :if and :for\n// const card = {\n//   template: html`<div>\n//     <h3><slot /></h3>\n//     <slot name=\"body\" />\n//   </div>`,\n// };\n\n// const main = {\n//   template: html`\n//     <div>\n//       <h1>card below</h1>\n//       <card>\n//         card title\n//         <template slot=\"body\">Card body content</template>\n//       </card>\n//     </div>\n//   `,\n// };\n\n// const app = new App();\n// app.register(\"card\", card);\n// app.mount(main, \"#app\");\n\n// ------------------------------------------------\n// Slots, multiple default and named, :if and :for\n// const app = new App();\n\n// const parent = {\n//   template: html`\n//     <div>\n//       <h1>parent</h1>\n//       <card>\n//         <!-- default -->\n//         <div :if=\"bool\">\n//           <div :teleport=\"body\" id=\"teleported\">\n//             <div>1</div>\n//             <div>2</div>\n//             <div>3</div>\n//           </div>\n//         </div>\n//         content 1 always shown\n//         <div :if=\"bool\">\n//           content 2, animals:\n//           <div :for=\"animal in animals\">animal: {{animal}}</div>\n//         </div>\n\n//         <!-- body -->\n//         <template slot=\"body\">card body from parent</template>\n//       </card>\n//     </div>\n//   `,\n//   main() {\n//     const bool = ref(true);\n//     const animals = reactive([\"dog\", \"cat\", \"bear\"]);\n\n//     setInterval(() => {\n//       bool.value = !bool.value;\n//     }, 2000);\n\n//     return { bool, animals };\n//   },\n// };\n// const card = {\n//   template: html`<div>\n//     <h2>card</h2>\n//     <h3><slot /></h3>\n//     <slot name=\"body\" />\n//   </div>`,\n// };\n// app.register(\"card\", card);\n// const parentBlock = app.mount(parent, \"body\");\n// const cardBlock = parentBlock.context.blocks[0];\n\n// ------------------------------------------------\n// Component pros, mirror and spread, bind and no bind\n// const child = {\n//   template: html`<div>Animal: {{animal}} {{index}}</div>`,\n//   props: { animal: { default: \"cat\" }, index: { default: 0 } },\n//   main({ animal, index }) {\n//     return { animal, index };\n//   },\n// };\n\n// const parent = {\n//   template: html`\n//     <div class=\"sans-serif\">\n//       <child :if=\"true\" :for=\"x in list\" />\n//       mirror, no bind:\n//       <child {animal} />\n//       <hr />\n//       mirror, bind:\n//       <child {animal:bind} />\n//       <hr />\n//       spread, no bind:\n//       <child ...spread />\n//       <hr />\n//       spread, bind:\n//       <child ...spread:bind />\n//       <hr />\n//       regular prop:\n//       <child .animal=\"animal\" />\n//       <hr />\n//       regular prop, bind:\n//       <child .animal:bind=\"animal\" />\n//       <hr />\n//       <div .id=\"animal\">div has \"id\" set to animal.value</div>\n//       <hr />\n//       <div .id:bind=\"animal\">div has \"id\" set and bound to animal.value</div>\n//       <hr />\n//       <div {animal}>div has \"animal\" set to animal.value</div>\n//       <hr />\n//       <div {animal:bind}>div has \"animal\" set and bound to animal.value</div>\n//       <hr />\n//       <div ...spread>div has \"animal\" spread</div>\n//       <hr />\n//       <div ...spread:bind>div has \"animal\" spread and bound</div>\n//       <hr />\n//       <hr />\n//       <hr />\n//       <hr />\n//       if bool, mirror, no bind:\n//       <child :if=\"bool\" {animal} />\n//       if bool, mirror, bind:\n//       <child :if=\"bool\" {animal:bind} />\n//       <hr />\n//       for list, mirror, no bind:\n//       <child :for=\"item in list\" {animal} />\n//       <hr />\n//       for list, mirror, bind:\n//       <child :for=\"item in list\" {animal:bind} />\n//       if bool, for list, mirror, no bind: these have the value \"DOG!\" because by the time for :for directive is evaluated, animal.value is \"DOG!\", and no longer \"dog\".\n//       <div :if=\"bool\">\n//         <child :for=\"item in list\" {animal} />\n//       </div>\n//     </div>\n//   `,\n//   main() {\n//     const bool = ref(false);\n//     const animal = ref(\"dog\");\n//     const spread = reactive({ animal: \"panther\" });\n//     const list = reactive([1, 2, 3]);\n\n//     setTimeout(() => {\n//       spread.animal = \"PANTHER!\";\n//       animal.value = \"DOG!\";\n//       bool.value = true;\n//     }, 500);\n\n//     setTimeout(() => {\n//       animal.value = \"DOG!!!!!\";\n//     }, 1000);\n\n//     return { animal, spread, bool, list };\n//   },\n// };\n\n// const app = new App();\n// app.register(\"child\", child);\n// app.mount(parent, \"#app\");\n\n// ------------------------------------------------\n// Event directive\n// const counter = {\n//   template: html`\n//     <div class=\"sans-serif\">\n//       <div :teleport=\"body\">\n//         <div :if=\"style.color === 'gray'\">color is gray</div>\n//         <div :if=\"style.color === 'white'\">color is white</div>\n//         <div>{{style.color}}</div>\n//       </div>\n//       <h3 {style:bind}>Count: {{count}}{{count >= 2 ? '!!!' : ''}}</h3>\n//       <button @click=\"increment\" class=\"padding-x-1 padding-y-0_5\">+</button>\n//       <button @click=\"decrement\" class=\"padding-x-1 padding-y-0_5\">-</button>\n//       <div :teleport=\"body\">\n//         <div :for=\"color in ['red', 'green', 'blue']\">{{color}}</div>\n//       </div>\n//     </div>\n//   `,\n//   main() {\n//     const count = ref(0);\n//     const style = reactive({ color: \"gray\" });\n//     const increment = () => count.value++;\n//     const decrement = () => count.value--;\n\n//     setInterval(() => {\n//       style.color = style.color === \"gray\" ? \"white\" : \"gray\";\n//     }, 500);\n\n//     return { count, increment, decrement, style };\n//   },\n// };\n\n// const app = new App();\n// app.mount(counter, \"#app\");\n\n// ------------------------------------------------\n// :if above :for\n// :if with :teleport\n// const main = {\n//   template: html`\n//     <div>\n//       <div :if=\"bool\">\n//         <div :teleport=\"body\">\n//           <div :for=\"item in items\">{{item}}</div>\n//         </div>\n//       </div>\n//       <div :if=\"bool\">\n//         <div :teleport=\"body\">if bool teleported! 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+  "names": ["node", "element", "ctx", "ref", "i", "exp", "el", "effect", "ref", "value", "App", "app", "current", "node", "context", "next", "child", "App"]
 }
diff --git a/src/demo.ts b/src/demo.ts
index 56af6ca..aefa737 100644
--- a/src/demo.ts
+++ b/src/demo.ts
@@ -1,6 +1,7 @@
 import { App } from ".";
 import { computed } from "./reactivity/computed";
 import { reactive } from "./reactivity/reactive";
+import { ref } from "./reactivity/ref";
 import { html } from "./util";
 
 // ------------------------------------------------
@@ -188,15 +189,15 @@ import { html } from "./util";
 //     const style = reactive({ color: "gray" });
 //     const increment = () => count.value++;
 //     const decrement = () => count.value--;
-//
+
 //     setInterval(() => {
 //       style.color = style.color === "gray" ? "white" : "gray";
 //     }, 500);
-//
+
 //     return { count, increment, decrement, style };
 //   },
 // };
-//
+
 // const app = new App();
 // app.mount(counter, "#app");
 
@@ -219,11 +220,11 @@ import { html } from "./util";
 //   main() {
 //     const items = reactive([1, 2, 3, 4, 5]);
 //     const bool = ref(true);
-//     setInterval(() => (bool.value = !bool.value), 250);
+//     setInterval(() => (bool.value = !bool.value), 2050);
 //     return { items, bool };
 //   },
 // };
-//
+
 // const app = new App();
 // app.mount(main, "#app");
 
@@ -249,67 +250,67 @@ import { html } from "./util";
 
 // ------------------------------------------------
 // Colors from css framework
-const main = {
-  template: html`
-    <div class="sans-serif margin-y-3 container" style="--column-gap: .5rem; --row-gap: .5rem;">
-      <h1 class="f1 margin-bottom-1 color-60">phase</h1>
-      <h2 class="f3 margin-bottom-1 color-peach-50">Colors</h2>
-      <grid columns="6" class="f6 white-space-nowrap">
-        <div :for="variant in ['base', 'accent', 'red', 'rose', 'orange', 'amber', 'yellow', 'lime', 'green', 'emerald', 'teal', 'cyan', 'sky', 'blue', 'indigo', 'lavender', 'violet', 'purple', 'plum', 'fuchsia', 'pink', 'peach']" class="border-color-30 border-2px">
-          <div :for="rank, index in ranks">
-            <div .style:bind="bg(variant, rank, index)" class="padding-1">{{variant}}-{{rank}}</div>
-          </div>
-        </div>
-      </grid>
-    </div>
-  `,
-  main() {
-    const ranks = reactive(["5", "10", "20", "30", "40", "50", "60", "70", "80", "90"]);
-    const basesReverse = computed(() => Array.from(ranks).reverse());
-    const bg = (variant: string, rank: string, index: number) => ({ backgroundColor: `var(--${variant}-${rank})`, color: `var(--${variant}-${basesReverse.value[index]})` });
-
-    return { ranks, bg };
-  },
-};
-
-const app = new App();
-app.mount(main, "#app");
-
-// ------------------------------------------------
-// :scope
-// const child = {
-//   template: html`
-//     <div>
-//       I am child and I have food: "{{food}}" (does not inherit)
-//       <div>
-//         <slot />
-//       </div>
-//     </div>
-//   `,
-//   main() {
-//     const food = ref("🍔");
-//     return { food };
-//   },
-// };
-
 // const main = {
 //   template: html`
-//     <div class="hero sans-serif f2" :scope="{ drink: '🍹' }">
-//       <div :scope="{ food: '🍕' }">
-//         <div>Scoped food: {{food}} and scoped drink: {{drink}}</div>
-//         <child>Child slot, food: {{food}} {{drink}}</child>
-//       </div>
+//     <div class="sans-serif margin-y-3 container" style="--column-gap: .5rem; --row-gap: .5rem;">
+//       <h1 class="f1 margin-bottom-1 color-60">phase</h1>
+//       <h2 class="f3 margin-bottom-1 color-peach-50">Colors</h2>
+//       <grid columns="6" class="f6 white-space-nowrap">
+//         <div :for="variant in ['base', 'accent', 'red', 'rose', 'orange', 'amber', 'yellow', 'lime', 'green', 'emerald', 'teal', 'cyan', 'sky', 'blue', 'indigo', 'lavender', 'violet', 'purple', 'plum', 'fuchsia', 'pink', 'peach']" class="border-color-30 border-2px">
+//           <div :for="rank, index in ranks">
+//             <div .style:bind="bg(variant, rank, index)" class="padding-1">{{variant}}-{{rank}}</div>
+//           </div>
+//         </div>
+//       </grid>
 //     </div>
 //   `,
 //   main() {
-//     return { food: ref("nothing") };
+//     const ranks = reactive(["5", "10", "20", "30", "40", "50", "60", "70", "80", "90"]);
+//     const basesReverse = computed(() => Array.from(ranks).reverse());
+//     const bg = (variant: string, rank: string, index: number) => ({ backgroundColor: `var(--${variant}-${rank})`, color: `var(--${variant}-${basesReverse.value[index]})` });
+
+//     return { ranks, bg };
 //   },
 // };
 
 // const app = new App();
-// app.register("child", child);
 // app.mount(main, "#app");
 
+// ------------------------------------------------
+// :scope
+const child = {
+  template: html`
+    <div>
+      I am child and I have a cheeseburger: "{{food}}" (does not inherit)
+      <div>
+        <slot />
+      </div>
+    </div>
+  `,
+  main() {
+    const food = ref("🍔");
+    return { food };
+  },
+};
+
+const main = {
+  template: html`
+    <div class="hero sans-serif f2" :scope="{ drink: '🍹' }">
+      <div :scope="{ food: '🍕' }">
+        <div>Parent has pizza: {{food}} and scoped drink: {{drink}}</div>
+        <child>Child slot, food: {{food}} {{drink}}</child>
+      </div>
+    </div>
+  `,
+  main() {
+    return { food: ref("nothing") };
+  },
+};
+
+const app = new App();
+app.register("child", child);
+app.mount(main, "#app");
+
 // ------------------------------------------------
 // Practical :scope demo
 // const main = {
diff --git a/src/directives/if.ts b/src/directives/if.ts
index 21939c1..37c2832 100644
--- a/src/directives/if.ts
+++ b/src/directives/if.ts
@@ -35,11 +35,11 @@ export function _if(el: Element, exp: string, ctx: Context, component?: Componen
   let activeBranchIndex = -1;
 
   const removeActiveBlock = () => {
-    if (block) {
-      parent.insertBefore(anchor, block.element);
-      block.remove();
-      block = undefined;
-    }
+    if (!block) { return; }
+
+    parent.insertBefore(anchor, block.element);
+    block.remove();
+    block = undefined;
   };
 
   ctx.effect(() => {
diff --git a/src/directives/interpolation.ts b/src/directives/interpolation.ts
index fa5faf1..374310e 100644
--- a/src/directives/interpolation.ts
+++ b/src/directives/interpolation.ts
@@ -1,4 +1,4 @@
-import { Context, evalGet } from "../";
+import { Context, current, evalGet } from "../";
 import { insertAfter, toDisplayString } from "../util";
 
 interface InterpolationDirectiveOptions {
diff --git a/src/index.ts b/src/index.ts
index fd13755..0b0df11 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -80,7 +80,7 @@ export class App {
 
   mount(component: Component, target: string | HTMLElement = "body", props: Record<string, any> = {}) {
     const root = typeof target === "string" ? (document.querySelector(target) as HTMLElement) : target;
-    const display = root.style.display;
+    const { display } = root.style;
     root.style.display = "none";
     this._mount(component, root, props);
     root.style.display = display;
@@ -98,7 +98,7 @@ export class App {
     parentContext.scope.$isRef = isRef;
     parentContext.scope.$isComputed = isComputed;
 
-    const block = new Block({
+    return new Block({
       app: this,
       element: target,
       parentContext,
@@ -107,8 +107,6 @@ export class App {
       componentProps: props,
       replacementType: "replaceChildren",
     });
-
-    return block;
   }
 
   unmount() {
@@ -134,7 +132,7 @@ interface CreateContextOptions {
 
 export function createContext({ parentContext, app }: CreateContextOptions): Context {
   const context: Context = {
-    app: app ? app : parentContext && parentContext.app ? parentContext.app : null,
+    app: app ? app : parentContext?.app ? parentContext.app : null,
     scope: parentContext ? parentContext.scope : reactive({}),
     blocks: [],
     effects: [],
@@ -251,15 +249,13 @@ export class Block {
     if (opts.component) {
       current.componentBlock = this;
       this.element = stringToElement(opts.component.template);
+    } else if (this.isFragment) {
+      this.element = (opts.element as HTMLTemplateElement).content.cloneNode(true) as Element;
+    } else if (typeof opts.element === "string") {
+      this.element = stringToElement(opts.element);
     } else {
-      if (this.isFragment) {
-        this.element = (opts.element as HTMLTemplateElement).content.cloneNode(true) as Element;
-      } else if (typeof opts.element === "string") {
-        this.element = stringToElement(opts.element);
-      } else {
-        this.element = opts.element.cloneNode(true) as Element;
-        opts.element.replaceWith(this.element);
-      }
+      this.element = opts.element.cloneNode(true) as Element;
+      opts.element.replaceWith(this.element);
     }
 
     if (opts.isRoot) {
@@ -326,10 +322,8 @@ export class Block {
         if (opts.element instanceof HTMLElement) {
           opts.element.replaceWith(this.element);
         }
-      } else {
-        if (opts.element instanceof HTMLElement) {
-          opts.element.replaceChildren(this.element);
-        }
+      } else if (opts.element instanceof HTMLElement) {
+        opts.element.replaceChildren(this.element);
       }
     }
   }
@@ -432,128 +426,126 @@ function walk(node: Node, context: Context) {
     return;
   }
 
-  if (isElement(node)) {
-    let exp: string | null;
+  if (!isElement(node)) { return; }
 
-    const handleDirectives = (node: Element, context: Context, component?: Component, componentProps?: Record<string, any>, allProps?: any[]) => {
-      if (warnInvalidDirectives(node, [":if", ":for"])) return;
-      if (warnInvalidDirectives(node, [":for", ":teleport"])) return;
-      if (warnInvalidDirectives(node, [":if", ":teleport"])) return;
+  let exp: string | null;
 
-      // e.g. <div :scope="{ open: true }" />
-      // In this case, the scope is merged into context.scope and will overwrite
-      // anything returned from `main`.
-      if ((exp = checkAndRemoveAttribute(node, ":scope"))) {
-        const scope = evalGet(context.scope, exp, node);
-        if (typeof scope === "object") {
-          Object.assign(context.scope, scope);
-          // context = createScopedContext(context, scope);
-        }
+  const handleDirectives = (node: Element, context: Context, component?: Component, componentProps?: Record<string, any>, allProps?: any[]) => {
+    if (warnInvalidDirectives(node, [":if", ":for"])) return;
+    if (warnInvalidDirectives(node, [":for", ":teleport"])) return;
+    if (warnInvalidDirectives(node, [":if", ":teleport"])) return;
+
+    // e.g. <div :scope="{ open: true }" />
+    // In this case, the scope is merged into context.scope and will overwrite
+    // anything returned from `main`.
+    if ((exp = checkAndRemoveAttribute(node, ":scope"))) {
+      const scope = evalGet(context.scope, exp, node);
+      if (typeof scope === "object") {
+        Object.assign(context.scope, scope);
+        // context = createScopedContext(context, scope);
       }
-
-      if ((exp = checkAndRemoveAttribute(node, ":if"))) {
-        return _if(node, exp, context, component, componentProps, allProps);
-      }
-      if ((exp = checkAndRemoveAttribute(node, ":for"))) {
-        return _for(node, exp, context, component, componentProps, allProps);
-      }
-      if ((exp = checkAndRemoveAttribute(node, ":teleport"))) {
-        return _teleport(node, exp, context, component, componentProps, allProps);
-      }
-      if ((exp = checkAndRemoveAttribute(node, ":show"))) {
-        new ShowDirective({ element: node, context, expression: exp });
-      }
-      if ((exp = checkAndRemoveAttribute(node, ":ref"))) {
-        context.scope[exp].value = node;
-      }
-      if ((exp = checkAndRemoveAttribute(node, ":value"))) {
-        new ValueDirective({ element: node, context, expression: exp });
-      }
-      if ((exp = checkAndRemoveAttribute(node, ":html"))) {
-        const htmlExp = exp;
-
-        context.effect(() => {
-          const result = evalGet(context.scope, htmlExp, node);
-          if (result instanceof Element) {
-            node.replaceChildren();
-            node.append(result);
-          } else {
-            node.innerHTML = result;
-          }
-        });
-      }
-      if ((exp = checkAndRemoveAttribute(node, ":text"))) {
-        const textExp = exp;
-
-        context.effect(() => {
-          node.textContent = toDisplayString(evalGet(context.scope, textExp, node));
-        });
-      }
-    };
-
-    const processAttributes = (node: Element, component?: Component) => {
-      return Array.from(node.attributes)
-        .filter((attr) => isSpreadProp(attr.name) || isMirrorProp(attr.name) || (isRegularProp(attr.name) && componentHasPropByName(extractPropName(attr.name), component)))
-        .map((attr) => ({
-          isMirror: isMirrorProp(attr.name),
-          isSpread: isSpreadProp(attr.name),
-          isBind: attr.name.includes("bind"),
-          originalName: attr.name,
-          extractedName: extractPropName(attr.name),
-          exp: attr.value,
-          value: isMirrorProp(attr.name) ? evalGet(context.scope, extractPropName(attr.name), node) : attr.value ? evalGet(context.scope, attr.value, node) : undefined,
-        }));
-    };
-
-    if (isComponent(node, context)) {
-      const component = context.app.getComponent(node.tagName.toLowerCase());
-      const allProps = processAttributes(node, component);
-
-      const componentProps = allProps.reduce((acc, { isSpread, isMirror, extractedName, value }) => {
-        if (isSpread) {
-          const spread = evalGet(context.scope, extractedName, node);
-          if (isObject(spread)) Object.assign(acc, spread);
-        } else if (isMirror) {
-          acc[extractedName] = evalGet(context.scope, extractedName, node);
-        } else {
-          acc[extractedName] = value;
-        }
-        return acc;
-      }, {});
-
-      const next = handleDirectives(node, context, component, componentProps, allProps);
-      if (next) return next;
-
-      const templates = findTemplateNodes(node);
-
-      return new Block({
-        element: node,
-        app: current.componentBlock.context.app,
-        // parentContext: context,
-        component,
-        replacementType: "replace",
-        parentComponentBlock: current.componentBlock,
-        templates,
-        componentProps,
-        allProps,
-      }).element;
     }
 
-    const next = handleDirectives(node, context);
+    if ((exp = checkAndRemoveAttribute(node, ":if"))) {
+      return _if(node, exp, context, component, componentProps, allProps);
+    }
+    if ((exp = checkAndRemoveAttribute(node, ":for"))) {
+      return _for(node, exp, context, component, componentProps, allProps);
+    }
+    if ((exp = checkAndRemoveAttribute(node, ":teleport"))) {
+      return _teleport(node, exp, context, component, componentProps, allProps);
+    }
+    if ((exp = checkAndRemoveAttribute(node, ":show"))) {
+      new ShowDirective({ element: node, context, expression: exp });
+    }
+    if ((exp = checkAndRemoveAttribute(node, ":ref"))) {
+      context.scope[exp].value = node;
+    }
+    if ((exp = checkAndRemoveAttribute(node, ":value"))) {
+      new ValueDirective({ element: node, context, expression: exp });
+    }
+    if ((exp = checkAndRemoveAttribute(node, ":html"))) {
+      const htmlExp = exp;
+
+      context.effect(() => {
+        const result = evalGet(context.scope, htmlExp, node);
+        if (result instanceof Element) {
+          node.replaceChildren();
+          node.append(result);
+        } else {
+          node.innerHTML = result;
+        }
+      });
+    }
+    if ((exp = checkAndRemoveAttribute(node, ":text"))) {
+      const textExp = exp;
+
+      context.effect(() => {
+        node.textContent = toDisplayString(evalGet(context.scope, textExp, node));
+      });
+    }
+  };
+
+  const processAttributes = (node: Element, component?: Component) => Array.from(node.attributes)
+  .filter((attr) => isSpreadProp(attr.name) || isMirrorProp(attr.name) || (isRegularProp(attr.name) && componentHasPropByName(extractPropName(attr.name), component)))
+  .map((attr) => ({
+    isMirror: isMirrorProp(attr.name),
+    isSpread: isSpreadProp(attr.name),
+    isBind: attr.name.includes("bind"),
+    originalName: attr.name,
+    extractedName: extractPropName(attr.name),
+    exp: attr.value,
+    value: isMirrorProp(attr.name) ? evalGet(context.scope, extractPropName(attr.name), node) : attr.value ? evalGet(context.scope, attr.value, node) : undefined,
+  }));
+
+  if (isComponent(node, context)) {
+    const component = context.app.getComponent(node.tagName.toLowerCase());
+    const allProps = processAttributes(node, component);
+
+    const componentProps = allProps.reduce((acc, { isSpread, isMirror, extractedName, value }) => {
+      if (isSpread) {
+        const spread = evalGet(context.scope, extractedName, node);
+        if (isObject(spread)) Object.assign(acc, spread);
+      } else if (isMirror) {
+        acc[extractedName] = evalGet(context.scope, extractedName, node);
+      } else {
+        acc[extractedName] = value;
+      }
+      return acc;
+    }, {});
+
+    const next = handleDirectives(node, context, component, componentProps, allProps);
     if (next) return next;
 
-    Array.from(node.attributes).forEach((attr) => {
-      if (isPropAttribute(attr.name)) {
-        new AttributeDirective({ element: node, context, attr });
-      }
+    const templates = findTemplateNodes(node);
 
-      if (isEventAttribute(attr.name)) {
-        new EventDirective({ element: node, context, attr });
-      }
-    });
-
-    walkChildren(node, context);
+    return new Block({
+      element: node,
+      app: current.componentBlock.context.app,
+      // parentContext: context,
+      component,
+      replacementType: "replace",
+      parentComponentBlock: current.componentBlock,
+      templates,
+      componentProps,
+      allProps,
+    }).element;
   }
+
+  const next = handleDirectives(node, context);
+  if (next) return next;
+
+  Array.from(node.attributes).forEach((attr) => {
+    if (isPropAttribute(attr.name)) {
+      new AttributeDirective({ element: node, context, attr });
+    }
+
+    if (isEventAttribute(attr.name)) {
+      new EventDirective({ element: node, context, attr });
+    }
+  });
+
+  walkChildren(node, context);
 }
 
 function walkChildren(node: Node, context: Context) {
@@ -605,11 +597,7 @@ function flattenRefs(scope: any): any {
   for (const key in scope) {
     if (scope.hasOwnProperty(key)) {
       // Check if the value is a Ref
-      if (isRef(scope[key])) {
-        mapped[key] = scope[key].value;
-      } else {
-        mapped[key] = scope[key];
-      }
+      mapped[key] = isRef(scope[key]) ? scope[key].value : scope[key];
     }
   }
   return mapped;
diff --git a/tests/app.test.ts b/tests/app.test.ts
new file mode 100644
index 0000000..252acd9
--- /dev/null
+++ b/tests/app.test.ts
@@ -0,0 +1,26 @@
+import { describe, it, expect } from "vitest";
+import { App, Component } from "../src/index";
+import { reactive } from "../src/reactivity/reactive";
+
+describe("App", () => {
+  it("should mount a simple component and update reactive data", () => {
+    const app = new App();
+    const component: Component = {
+      template: "<div>{{ message }}</div>",
+      props: { message: { default: "Hello" } },
+      main(props) {
+        return reactive({ message: props.message });
+      },
+    };
+
+    const root = document.createElement("div");
+    app.mount(component, root);
+
+    expect(root.innerHTML).toBe("<div>Hello</div>");
+
+    const { scope } = app.root.context;
+    scope.message = "World";
+
+    expect(root.innerHTML).toBe("<div>World</div>");
+  });
+});
diff --git a/tests/router.test.ts b/tests/router.test.ts
new file mode 100644
index 0000000..b20453f
--- /dev/null
+++ b/tests/router.test.ts
@@ -0,0 +1,38 @@
+import { describe, it, expect, beforeEach } from "vitest";
+import { App } from "../src/index";
+import { RouterPlugin } from "../src/plugins/router";
+
+describe("RouterPlugin", () => {
+  let app: App;
+  let router: RouterPlugin;
+
+  beforeEach(() => {
+    app = new App();
+    router = new RouterPlugin([
+      {
+        path: "/",
+        component: { template: "<div>Home</div>" },
+      },
+      {
+        path: "/about",
+        component: { template: "<div>About</div>" },
+      },
+    ]);
+
+    app.use(router);
+  });
+
+  it("should render the correct component on route change", () => {
+    const root = document.createElement("div");
+    root.innerHTML = "<router-view></router-view>";
+    document.body.appendChild(root);
+
+    router.compile(root.firstElementChild as Element);
+
+    router.doRouteChange("/");
+    expect(root.innerHTML).toContain("<div>Home</div>");
+
+    router.doRouteChange("/about");
+    expect(root.innerHTML).toContain("<div>About</div>");
+  });
+});