@cloudcome/utils-core/dist/merge.cjs

cloudcome core utils

"use strict";
const type = require("./type.cjs");
const each = require("./each.cjs");
function _objectMerge(mergeRule, target, ...sources) {
  const seen = /* @__PURE__ */ new WeakMap();
  const { assign, next } = mergeRule;
  const align = (target2, source) => {
    const targetType = type.typeIs(target2);
    const sourceType = type.typeIs(source);
    if (targetType === sourceType) {
      return target2;
    }
    return sourceType === "array" ? [] : {};
  };
  const each$1 = (source, iterator) => {
    if (type.isObject(source)) {
      each.objectEach(source, iterator);
    } else {
      source.forEach(iterator);
    }
  };
  const merge = (target2, source) => {
    if (seen.has(source)) {
      return seen.get(source);
    }
    const merged = align(target2, source);
    seen.set(source, merged);
    each$1(source, (value, key) => {
      if (!next({ target: merged, source, key })) {
        return;
      }
      if (type.isObject(value) || type.isArray(value)) {
        merged[key] = assign({
          target: merged,
          source,
          key,
          // @ts-expect-error
          merge: () => merge(merged[key], value)
        });
      } else {
        merged[key] = assign({
          target: merged,
          source,
          key,
          merge: () => value
        });
      }
    });
    return merged;
  };
  let returnTarget = target;
  for (const source of sources) {
    returnTarget = merge(target, source);
  }
  return returnTarget;
}
function objectMerge(target, ...sources) {
  return _objectMerge(
    {
      next() {
        return true;
      },
      assign({ merge }) {
        return merge();
      }
    },
    target,
    ...sources
  );
}
function objectDefaults(target, defaults) {
  return _objectMerge(
    {
      next({ target: target2, source, key }) {
        return target2[key] === void 0 || type.isObject(target2[key]) || type.isArray(target2[key]);
      },
      assign({ merge }) {
        return merge();
      }
    },
    target,
    defaults
  );
}
exports.objectDefaults = objectDefaults;
exports.objectMerge = objectMerge;
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