deepmerge-plus/dist/index.cjs.production.min.cjs

用於深度（遞迴）合併 JavaScript 物件的函式庫 / A library for deep (recursive) merging of JavaScript objects

"use strict";

var e = require("is-mergeable-object");

function cloneUnlessOtherwiseSpecified(e, r, t, n) {
  const l = function _shouldClone(e) {
    return !1 !== (null == e ? void 0 : e.clone);
  }(r), o = l && _isMergeableObject(e, r, t, n);
  let i = o ? deepmerge(function emptyTarget(e) {
    return Array.isArray(e) ? [] : {};
  }(e), e, r, n) : e;
  if (null != r && r.keyValueOrMode && !o && t && "key" in t && (t.destination && (i = t.destination[t.key] || i), 
  t.target && (i = t.target[t.key] || i), t.source && (i = t.source[t.key] || i)), 
  null != r && r.keyValueUpsertMode && !o && t && "key" in t) {
    let l = !1;
    if ("function" == typeof r.keyValueUpsertMode) l = r.keyValueUpsertMode(e, r, t, n); else if (!0 === r.keyValueUpsertMode) {
      var a;
      l = !function _isUndefined(e) {
        return void 0 === e;
      }(null === (a = t.target) || void 0 === a ? void 0 : a[t.key]);
    }
    if (l) {
      let e;
      t.destination && (null != e || (e = t.destination[t.key])), t.target && (null != e || (e = t.target[t.key])), 
      i = e;
    }
  }
  return i;
}

function _isMergeableObject(t, n, l, o) {
  var i;
  let a = null == n || null === (i = n.isMergeableObject) || void 0 === i ? void 0 : i.call(n, t, e, n, l, o);
  return null == a && (a = "boolean" == typeof (null == t ? void 0 : t[r]) ? t[r] : e(t)), 
  a;
}

function defaultArrayMerge(e, r, t, n) {
  null != n || (n = _newTmpRuntimeData([]));
  const l = n.level + 1, o = n.root, i = [];
  return n.parent[n.key] = i, e.concat(r).reduce((e, r, i) => (r = cloneUnlessOtherwiseSpecified(r, t, {
    key: i
  }, {
    level: l,
    paths: [ ...n.paths, i ],
    root: o,
    parent: e,
    key: i
  }), e[i] = r, e), i);
}

function deepmerge(e, r, t, n) {
  const l = Array.isArray(r), o = Array.isArray(e), i = function _handleOptions(e) {
    return e || {};
  }(t);
  var a;
  return l === o ? l ? (null !== (a = null == i ? void 0 : i.arrayMerge) && void 0 !== a ? a : defaultArrayMerge)(e, r, t, n) : function mergeObject(e, r, t, n) {
    let l = {};
    return n || (n = _newTmpRuntimeData(l)), _isMergeableObject(e, t, void 0, n) && Object.keys(e).forEach(function(o) {
      l[o] = cloneUnlessOtherwiseSpecified(e[o], t, {
        key: o,
        source: r,
        target: e,
        destination: l
      }, {
        level: n.level + 1,
        paths: [ ...n.paths, o ],
        root: n.root,
        parent: l,
        key: o
      });
    }), Object.keys(r).forEach(function(o) {
      l[o] = _isMergeableObject(r[o], t, {
        key: o,
        source: r,
        target: e
      }, n) && e[o] ? deepmerge(e[o], r[o], t, {
        level: n.level + 1,
        paths: [ ...n.paths, o ],
        root: n.root,
        parent: l,
        key: o
      }) : cloneUnlessOtherwiseSpecified(r[o], t, {
        key: o,
        source: r,
        target: e
      }, {
        level: n.level + 1,
        paths: [ ...n.paths, o ],
        root: n.root,
        parent: l,
        key: o
      });
    }), l;
  }(e, r, t, n) : cloneUnlessOtherwiseSpecified(r, t, {
    target: e,
    source: r
  }, n);
}

const r = /*#__PURE__*/ Symbol.for("SYMBOL_IS_MERGEABLE");

function _newTmpRuntimeData(e) {
  return {
    level: 0,
    paths: [],
    root: e,
    parent: e,
    key: void 0
  };
}

function deepmergeAll(e, r) {
  if (!Array.isArray(e)) throw new Error("first argument should be an array");
  return e.reduce(function(e, t) {
    return deepmerge(e, t, r);
  }, {});
}

Object.defineProperty(deepmerge, "__esModule", {
  value: !0
}), Object.defineProperty(deepmerge, "deepmerge", {
  value: deepmerge
}), Object.defineProperty(deepmerge, "default", {
  value: deepmerge
}), Object.defineProperty(deepmerge, "isMergeable", {
  value: function isMergeable(r) {
    return e(r);
  }
}), Object.defineProperty(deepmerge, "SYMBOL_IS_MERGEABLE", {
  value: r
}), Object.defineProperty(deepmerge, "deepmergeAll", {
  value: deepmergeAll
}), Object.defineProperty(deepmerge, "all", {
  value: deepmergeAll
}), Object.defineProperty(deepmerge, "_isMergeableObject", {
  value: _isMergeableObject
}), module.exports = deepmerge;
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