alinea/dist/core/shape/ScalarShape.js

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import "../../chunks/chunk-U5RRZUYZ.js";

// src/core/shape/ScalarShape.ts
var ScalarShape = class {
  constructor(label, initialValue) {
    this.label = label;
    this.initialValue = initialValue;
  }
  innerTypes() {
    return [];
  }
  create() {
    return this.initialValue;
  }
  typeOfChild(yValue, child) {
    throw new Error(`No children in scalar values`);
  }
  toY(value) {
    return value;
  }
  fromY(yValue) {
    return yValue;
  }
  applyY(value, parent, key) {
    const current = parent.get(key);
    if (current !== value)
      parent.set(key, value);
  }
  init(parent, key) {
    if (!parent.has(key))
      parent.set(key, this.toY(this.create()));
  }
  watch(parent, key) {
    return (fun) => {
      function w(event) {
        if (event.keysChanged.has(key))
          fun();
      }
      parent.observe(w);
      return () => parent.unobserve(w);
    };
  }
  mutator(parent, key, readOnly) {
    return (value) => {
      if (readOnly)
        return;
      parent.set(key, value);
    };
  }
  async applyLinks() {
  }
};
export {
  ScalarShape
};