init

src/main.ts

@@ -1,33 +1,50 @@
-import { Component, type ComponentBlueprint } from "./module/Component";
-import { HTMLComponent } from "./module/HTMLComponent";
+import { Component, type Blueprint } from "./module/Component";
 import { State } from "./module/State";
-import { TextComponent } from "./module/TextComponent";
-
-class Counter extends Component<{ initValue: number, children: State<ComponentBlueprint<any>[]> }> {
-  state: { count: State<number> } = {
-    count: new State(0)
-  };
-
-  constructor(props: { initValue: number }) {
-    super({
-      ...props,
-      children: [
-        {
-          component: HTMLComponent,
-          props: {
-            children: new State([{
-              component: TextComponent,
-              props: {
-                content: this.state.count
-              }
-            }])
-          }
-        }
-      ]
-    });
-  }
+import { html } from "./module/html";
 
+type Props = { initValue?: number }
+class Counter extends Component<Props, { count: State<number>, double: State<number> }> {
   init() {
-    this.state.count.set(this.props.initValue);
+    this.states.count = new State(this.propStates.initValue?.value ?? 0);
+    this.states.double = this.derived((value) => value * 2, [this.states.count]);
   }
-}
+
+  blueprint(): Blueprint[] {
+    const s = html`
+      <button onclick="${() => this.states.count.update((val) => val + 1)}">
+        ${this.states.count}
+      </button>
+    `;
+    return [
+      ...s,
+      {
+        type: 'component',
+        component: RedText,
+        props: {
+          content: this.derived((double) => `doulbed: ${double}`, [this.states.double])
+        },
+        children: []
+      }
+    ]
+  }
+}
+
+class RedText extends Component<{ content: string }, {}> {
+  init() { }
+  blueprint(): Blueprint[] {
+    return html`
+      <span style="color: red;">
+      ${this.propStates.content}
+      </span>
+    `
+  }
+}
+
+const counter = new Counter({ initValue: 1 });
+counter.mount(document.body);
+
+
+const btn = document.createElement('button');
+btn.innerText = "destroy";
+btn.onclick = () => {counter.destroy()};
+document.body.appendChild(btn);

src/module/Component.ts

@@ -1,44 +1,27 @@
+import { ComponentBase } from "./ComponentBase";
+import { ComponentFactory } from "./ComponentFactory";
 import { State } from "./State";
-import { TextComponent } from "./TextComponent";
 
-export abstract class Component<Props extends PropsBase> {
-    static propsToPropState<Props extends PropsBase>(props: Props) {
-        const propsState: Record<string, State<any>> = {};
-        Object.entries(props).forEach(([key, value]) => {
-            if (value instanceof State) {
-                propsState[key] = value;
-            }
-            else {
-                propsState[key] = new State(value);
-            }
+export abstract class Component<Props extends PropsBase, States extends StatesBase> extends ComponentBase<Props, States> {
+    declare node: DocumentFragment;
+
+    constructor(props: Props, children: Blueprint[] = []) {
+        super(props);
+        this.node = this.createNode();
+
+        const blueprint = this.blueprint(children);
+        this.children = blueprint.map((bp) => ComponentFactory.blueprintToComponentInstance(bp));
+        this.children.forEach((child) => {
+            child.mount(this.node);
         });
-        return propsState as PropState<Props>;
     }
 
-    static blueprintsToComponentInstances(blueprints: Blueprint[]): Component<any>[] {
-        return blueprints.map((blueprint) => this.blueprintToComponentInstance(blueprint));
-    }
-
-    static blueprintToComponentInstance(blueprint: Blueprint) {
-        if (blueprint.type === "text") {
-            return new TextComponent(blueprint.props);
-        }
-    }
-
-    propState: PropState<Props>;
-    children: Component<any>[] = [];
-    mounted: boolean = false;
-    subscriberSymbols: Symbol[] = [];
-    abstract node: Node;
-
-    constructor(props: Props) {
-        this.propState = Component.propsToPropState(props);
-        this.init();
-    }
-
-    abstract init(): void;
     abstract blueprint(children?: Blueprint[]): Blueprint[];
-    mount(target: HTMLElement) {
+    createNode(): DocumentFragment {
+        return document.createDocumentFragment();
+    }
+
+    mount(target: Node) {
         if (this.mounted) {
             throw new Error("This component is already mounted");
         }
@@ -46,18 +29,22 @@ export abstract class Component<Props extends PropsBase> {
         this.mounted = true;
     }
     destroy() {
-
+        this.children.forEach((child) => child.destroy());
+        this.subscriberSymbols.forEach(({ state, symbol }) => {
+            state.unsubscribe(symbol);
+        });
     };
 }
 
+export type StatesBase = Record<string, State<any>>;
 export type PropsBase = Record<string, any>;
 export type PropState<Props extends PropsBase> = {
     [K in keyof Props]: State<Props[K]>
 }
 
-export type ComponentBlueprint<Props extends PropsBase> = {
+export type ComponentBlueprint<Props extends PropsBase, States extends StatesBase> = {
     type: 'component',
-    component: new (props: Props) => Component<Props>,
+    component: typeof Component<Props, States>,
     props: Props,
     children: Blueprint[]
 }
@@ -71,7 +58,4 @@ export type TextBlueprint = {
     type: 'text',
     props: { content: State<any> | any }
 }
-export type Blueprint = ComponentBlueprint<any> | HTMLBlueprint | TextBlueprint;
-
-type K = PropState<{ asd: number }>
-type X = K['asd']
+export type Blueprint = ComponentBlueprint<any, any> | HTMLBlueprint | TextBlueprint;

src/module/ComponentBase.ts

@@ -0,0 +1,104 @@
+import { State, type ValuesOfStateArray } from "./State";
+
+export abstract class ComponentBase<Props extends PropsBase, States extends StatesBase> {
+    static propsToPropStates<Props extends PropsBase>(props: Props | PropStates<Props>) {
+        const propsState: Record<string, State<any>> = {};
+        Object.entries(props).forEach(([key, value]) => {
+            if (value instanceof State) {
+                propsState[key] = value;
+            }
+            else {
+                propsState[key] = new State(value);
+            }
+        });
+        return propsState as PropStates<Props>;
+    }
+
+    states: States = {} as States;
+    propStates: PropStates<Props>;
+    children: ComponentBase<any, any>[] = [];
+    mounted: boolean = false;
+    subscriberSymbols: { state: State<any>, symbol: Symbol }[] = [];
+    abstract node: Node;
+
+    constructor(props: PropStates<Props> | Props) {
+        this.propStates = ComponentBase.propsToPropStates(props);
+        this.init();
+    }
+
+    init(): void { }
+    protected abstract createNode(): Node;
+
+    mount(target: Node) {
+        if (this.mounted) {
+            throw new Error("This component is already mounted");
+        }
+        target.appendChild(this.node);
+        this.mounted = true;
+        this.onMount?.();
+    }
+    destroy() {
+        this.children.forEach((child) => child.destroy());
+        this.subscriberSymbols.forEach(({ state, symbol }) => {
+            state.unsubscribe(symbol);
+        });
+        this.onDestoy?.();
+    };
+    onMount(): void { };
+    onDestoy(): void { };
+
+    effect<const T extends State<any>[]>(callback: (...values: ValuesOfStateArray<T>) => void, states: T) {
+        states.forEach((state) => {
+            const symbol = state.subscribe(() => callback(...states.map(({ value }) => value) as ValuesOfStateArray<T>));
+            this.subscriberSymbols.push({ state, symbol });
+        })
+    }
+    derived<const T extends State<any>[], U>(callback: (...values: ValuesOfStateArray<T>) => U, states: T): State<U> {
+        const derivedState = new State<U>(undefined as U);
+        states.forEach((state) => {
+            const symbol = state.subscribe(() => {
+                const derivedValue = callback(...states.map(({ value }) => value) as ValuesOfStateArray<T>);
+                derivedState.set(derivedValue);
+            });
+            this.subscriberSymbols.push({ state, symbol });
+        });
+        return derivedState;
+    }
+    update<T extends (keyof Props | (string & {})), U>(
+        key: T,
+        value: T extends keyof Props ?
+            Props[T] extends State<U> ? U : Props[T] :
+            U
+    ) {
+        let propState: State<any> = this.propStates[key];
+        if (!propState) {
+            propState = new State(value);
+            this.propStates[key] = propState;
+        }
+        propState.set(value);
+    }
+}
+
+export type StatesBase = Record<string, State<any>>;
+export type PropsBase = Record<string, any>;
+export type PropStates<Props extends PropsBase> = {
+    [K in keyof Props]: State<Props[K]>
+}
+
+export type ComponentBlueprint<Props extends PropsBase, States extends StatesBase> = {
+    type: 'component',
+    component: new (props: Props, children?: Blueprint[]) => ComponentBase<Props, States>,
+    props: Props,
+    children: Blueprint[]
+}
+export type HTMLBlueprint = {
+    type: 'html',
+    tag: string;
+    props: Record<string, any>;
+    children: Blueprint[]
+}
+export type TextBlueprint = {
+    type: 'text',
+    props: { content: State<any> | any }
+}
+export type Blueprint = ComponentBlueprint<any, any> | HTMLBlueprint | TextBlueprint;

src/module/ComponentFactory.ts

@@ -0,0 +1,18 @@
+import type { Blueprint } from "./Component";
+import type { ComponentBase } from "./ComponentBase";
+import { HTMLComponent } from "./HTMLComponent";
+import { TextComponent } from "./TextComponent";
+
+export namespace ComponentFactory {
+    export function blueprintToComponentInstance(blueprint: Blueprint): ComponentBase<any, any> {
+        if (blueprint.type === "text") {
+            return new TextComponent(blueprint.props);
+        }
+        else if (blueprint.type === "html") {
+            return new HTMLComponent(blueprint.tag, blueprint.props, blueprint.children);
+        }
+        else {
+            return new blueprint.component(blueprint.props, blueprint.children);
+        }
+    }
+}

src/module/HTMLComponent.ts

@@ -1,31 +1,49 @@
-import { Component, type Blueprint, type PropsBase } from "./Component";
+import { type Blueprint, type PropsBase } from "./Component";
+import { ComponentBase } from "./ComponentBase";
+import { ComponentFactory } from "./ComponentFactory";
 import { State } from "./State";
 
-export class HTMLComponent<Props extends PropsBase> extends Component<Props> {
+export class HTMLComponent<Props extends PropsBase> extends ComponentBase<Props, {}> {
     state: Record<string, State<any>> = {};
     tag: string;
-    node: HTMLElement;
-    subscriberSymbols: { state: State<any>, symbol: Symbol }[] = [];
+    declare node: HTMLElement;
 
-    constructor(tag: string, props: Props) {
+    constructor(tag: string, props: Props, children: Blueprint[] = []) {
         super(props);
         this.tag = tag;
-        this.node = document.createElement(tag);
+        this.node = this.createNode();
 
-        const blueprint = this.blueprint();
-        this.children = Component.blueprintsToComponentInstances(blueprint);
+        const blueprint = this.blueprint(children);
+        this.children = blueprint.map((bp) => ComponentFactory.blueprintToComponentInstance(bp));
         this.children.forEach((child) => {
-            this.node.appendChild(child.node);
+            child.mount(this.node);
+        });
+
+        Object.entries(this.propStates).forEach(([key, prop]) => {
+            if (prop instanceof State) {
+                prop.subscribe((value) => {
+                    this.setNodePropertyOrAttribute(key, value);
+                })
+            }
+            else {
+                this.setNodePropertyOrAttribute(key, prop);
+            }
         })
     }
 
-    init() { }
+    private setNodePropertyOrAttribute(key: string, value: any) {
+        if (key in this.node) {
+            (this.node as any)[key] = value;
+        }
+        else {
+            this.node.setAttribute(key, value + "")
+        }
+    }
 
+    createNode() {
+        return document.createElement(this.tag);
+    }
     blueprint(children?: Blueprint[]): Blueprint[] {
         return children ?? [];
     }
-
-    destroy(): void {
-        
-    }
 }

src/module/State.ts

@@ -29,4 +29,5 @@ export class State<T> {
     }
 }
 
-type SubscribeCallback<T> = (value: T) => any
+type SubscribeCallback<T> = (value: T) => any
+export type ValuesOfStateArray<T extends State<any>[]> = { [K in keyof T]: T[K] extends State<infer V> ? V : never };

src/module/TextComponent.ts

@@ -1,23 +1,22 @@
-import { Component, type TextBlueprint } from "./Component";
+import { ComponentBase } from "./ComponentBase";
 
-export class TextComponent extends Component<{ content: any }> {
+export class TextComponent extends ComponentBase<{ content: any }, {}> {
     init() { };
     node: Text;
-    subscribeSymbol: Symbol;
 
     constructor(props: { content: any }) {
         super(props);
-        this.node = document.createTextNode(this.propState.content.value + "");
-        this.subscribeSymbol = this.propState.content.subscribe((value) => {
-            this.node.textContent = value = "";
-        });
+        this.node = this.createNode();
+        this.effect((value) => {
+            this.node.textContent = value + "";
+        }, [this.propStates.content])
+    }
+
+    protected createNode(): Text {
+        return document.createTextNode(this.propStates.content.value + "");
     }
 
     blueprint() {
         return []
     }
-
-    destroy(): void {
-        this.propState.content.unsubscribe(this.subscribeSymbol);
-    }
 }

src/module/html.ts

@@ -0,0 +1,113 @@
+import { type Blueprint } from "./Component";
+import { State } from "./State";
+
+const MARKER_PREFIX = "__GEMINI_MARKER_";
+// DOMParser는 태그 이름을 소문자로 변환하므로 소문자 버전도 준비합니다.
+const LOWER_MARKER_PREFIX = MARKER_PREFIX.toLowerCase();
+const MARKER_REGEX = new RegExp(`${MARKER_PREFIX}(\\d+)__`, 'g');
+const TAG_MARKER_REGEX = new RegExp(`${LOWER_MARKER_PREFIX}(\\d+)__`);
+
+export function html(strings: TemplateStringsArray, ...values: any[]): Blueprint[] {
+    const htmlString = strings.reduce((acc, str, i) => {
+        return acc + str + (i < values.length ? `${MARKER_PREFIX}${i}__` : "");
+    }, "");
+
+    const parser = new DOMParser();
+    const doc = parser.parseFromString(htmlString, "text/html");
+    
+    const blueprints: Blueprint[] = [];
+    Array.from(doc.body.childNodes).forEach(node => {
+        const result = nodeToBlueprint(node, values);
+        if (Array.isArray(result)) {
+            blueprints.push(...result);
+        } else if (result) {
+            blueprints.push(result);
+        }
+    });
+    return blueprints;
+}
+
+function nodeToBlueprint(node: Node, values: any[]): Blueprint | Blueprint[] | null {
+    if (node.nodeType === Node.TEXT_NODE) {
+        const text = node.textContent || "";
+        const matches = [...text.matchAll(MARKER_REGEX)];
+
+        if (matches.length === 0) {
+            if (text.trim() === "") return null;
+            return { type: 'text', props: { content: text } };
+        }
+
+        if (matches.length === 1 && text.trim() === matches[0][0]) {
+            const index = parseInt(matches[0][1]);
+            const val = values[index];
+            if (Array.isArray(val)) return val;
+            if (val && typeof val === 'object' && 'type' in val) return val;
+            return { type: 'text', props: { content: val } };
+        }
+
+        let content: any = text;
+        matches.forEach(match => {
+            const index = parseInt(match[1]);
+            const val = values[index];
+            
+            // 컴포넌트 클래스(함수)가 텍스트 노드에 포함된 경우 치환하지 않고 건너뜁니다.
+            if (typeof val === 'function' && !(val instanceof State)) {
+                content = content.replace(match[0], "");
+                return;
+            }
+
+            const replacement = val instanceof State ? val.value : val;
+            content = content.replace(match[0], replacement);
+        });
+        return { type: 'text', props: { content } };
+    }
+
+    if (node.nodeType === Node.ELEMENT_NODE) {
+        const el = node as HTMLElement;
+        const tagName = el.tagName.toLowerCase();
+        
+        // 태그 자체가 마커인지 확인 (컴포넌트 케이스)
+        const tagMatch = tagName.match(TAG_MARKER_REGEX);
+        
+        const props: Record<string, any> = {};
+        Array.from(el.attributes).forEach(attr => {
+            const match = attr.value.match(new RegExp(`${MARKER_PREFIX}(\\d+)__`));
+            if (match) {
+                const index = parseInt(match[1]);
+                props[attr.name] = values[index];
+            } else {
+                props[attr.name] = attr.value;
+            }
+        });
+
+        const children: Blueprint[] = [];
+        Array.from(el.childNodes).forEach(child => {
+            const result = nodeToBlueprint(child, values);
+            if (Array.isArray(result)) {
+                children.push(...result);
+            } else if (result) {
+                children.push(result);
+            }
+        });
+
+        if (tagMatch) {
+            const index = parseInt(tagMatch[1]);
+            const componentClass = values[index];
+            return {
+                type: 'component',
+                component: componentClass,
+                props,
+                children
+            };
+        }
+
+        return {
+            type: 'html',
+            tag: tagName,
+            props,
+            children
+        };
+    }
+
+    return null;
+}

tsconfig.json

@@ -18,7 +18,7 @@
     "strict": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,
-    "erasableSyntaxOnly": true,
+    "erasableSyntaxOnly": false,
     "noFallthroughCasesInSwitch": true,
     "noUncheckedSideEffectImports": true
   },