From dc090269b9aaaa5a523c86ec359ae1db55edfa04 Mon Sep 17 00:00:00 2001
From: Junshan Liu <junshan_liu@esri.com>
Date: Wed, 12 Mar 2025 10:21:12 +0800
Subject: [PATCH 1/4] fix isReactElement for react 19

---
 src/seamless-immutable.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/seamless-immutable.js b/src/seamless-immutable.js
index f9ead88..250899d 100644
--- a/src/seamless-immutable.js
+++ b/src/seamless-immutable.js
@@ -3,9 +3,9 @@
 
 function immutableInit(config) {
 
-  // https://github.com/facebook/react/blob/v15.0.1/src/isomorphic/classic/element/ReactElement.js#L21
-  var REACT_ELEMENT_TYPE = typeof Symbol === 'function' && Symbol.for && Symbol.for('react.element');
-  var REACT_ELEMENT_TYPE_FALLBACK = 0xeac7;
+  // https://github.com/facebook/react/blob/v19.0.0/packages/shared/ReactSymbols.js#L16
+  var REACT_LEGACY_ELEMENT_TYPE = Symbol.for('react.element');
+  var REACT_ELEMENT_TYPE = Symbol.for('react.transitional.element')
 
   var globalConfig = {
     use_static: false
@@ -604,7 +604,7 @@ function immutableInit(config) {
   function isReactElement(obj) {
     return typeof obj === 'object' &&
            obj !== null &&
-           (obj.$$typeof === REACT_ELEMENT_TYPE_FALLBACK || obj.$$typeof === REACT_ELEMENT_TYPE);
+           (obj.$$typeof === REACT_ELEMENT_TYPE || obj.$$typeof === REACT_LEGACY_ELEMENT_TYPE);
   }
 
   function isFileObject(obj) {

From 4303ac52609877049ed1425bbff59ba57d3f79f4 Mon Sep 17 00:00:00 2001
From: Junshan Liu <junshan_liu@esri.com>
Date: Thu, 13 Mar 2025 14:54:10 +0800
Subject: [PATCH 2/4] fix isReactElement for react 19

---
 seamless-immutable.development.js     | 8 ++++----
 seamless-immutable.development.min.js | 2 +-
 seamless-immutable.production.min.js  | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/seamless-immutable.development.js b/seamless-immutable.development.js
index db02798..dd277e1 100644
--- a/seamless-immutable.development.js
+++ b/seamless-immutable.development.js
@@ -3,9 +3,9 @@
 
 function immutableInit(config) {
 
-  // https://github.com/facebook/react/blob/v15.0.1/src/isomorphic/classic/element/ReactElement.js#L21
-  var REACT_ELEMENT_TYPE = typeof Symbol === 'function' && Symbol.for && Symbol.for('react.element');
-  var REACT_ELEMENT_TYPE_FALLBACK = 0xeac7;
+  // https://github.com/facebook/react/blob/v19.0.0/packages/shared/ReactSymbols.js#L16
+  var REACT_LEGACY_ELEMENT_TYPE = Symbol.for('react.element');
+  var REACT_ELEMENT_TYPE = Symbol.for('react.transitional.element')
 
   var globalConfig = {
     use_static: false
@@ -604,7 +604,7 @@ function immutableInit(config) {
   function isReactElement(obj) {
     return typeof obj === 'object' &&
            obj !== null &&
-           (obj.$$typeof === REACT_ELEMENT_TYPE_FALLBACK || obj.$$typeof === REACT_ELEMENT_TYPE);
+           (obj.$$typeof === REACT_ELEMENT_TYPE || obj.$$typeof === REACT_LEGACY_ELEMENT_TYPE);
   }
 
   function isFileObject(obj) {
diff --git a/seamless-immutable.development.min.js b/seamless-immutable.development.min.js
index d20c521..2059a09 100644
--- a/seamless-immutable.development.min.js
+++ b/seamless-immutable.development.min.js
@@ -1 +1 @@
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\ No newline at end of file
+/* (c) 2017, Richard Feldman, github.com/rtfeldman/seamless-immutable/blob/master/LICENSE */!function(){"use strict";function a(b){function c(a){return"object"==typeof a&&!Array.isArray(a)&&null!==a}function d(a){var b=Object.getPrototypeOf(a);return b?Object.create(b):{}}function e(a,b,c){Object.defineProperty(a,b,{enumerable:!1,configurable:!1,writable:!1,value:c})}function f(a,b){e(a,b,function(){throw new k("The "+b+" method cannot be invoked on an Immutable data structure.")})}function g(a){e(a,V,!0)}function h(a){return"object"!=typeof a||(null===a||Boolean(Object.getOwnPropertyDescriptor(a,V)))}function i(a,b){return a===b||a!==a&&b!==b}function j(a){return!(null===a||"object"!=typeof a||Array.isArray(a)||a instanceof Date)}function k(a){this.name="MyError",this.message=a,this.stack=(new Error).stack}function l(a,b){g(a);for(var c in b)b.hasOwnProperty(c)&&f(a,b[c]);return Object.freeze(a),a}function m(a,b){var c=a[b];e(a,b,function(){return O(c.apply(a,arguments))})}function 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\ No newline at end of file
diff --git a/seamless-immutable.production.min.js b/seamless-immutable.production.min.js
index 812e940..08b0821 100644
--- a/seamless-immutable.production.min.js
+++ b/seamless-immutable.production.min.js
@@ -1 +1 @@
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window?window.Immutable=b:"object"==typeof global&&(global.Immutable=b)}();
\ No newline at end of file
+/* (c) 2017, Richard Feldman, github.com/rtfeldman/seamless-immutable/blob/master/LICENSE */!function(){"use strict";function a(b){function c(a){return"object"==typeof a&&!Array.isArray(a)&&null!==a}function d(a){var b=Object.getPrototypeOf(a);return b?Object.create(b):{}}function e(a,b,c){Object.defineProperty(a,b,{enumerable:!1,configurable:!1,writable:!1,value:c})}function f(a){e(a,U,!0)}function g(a){return"object"!=typeof a||(null===a||Boolean(Object.getOwnPropertyDescriptor(a,U)))}function h(a,b){return a===b||a!==a&&b!==b}function i(a){return!(null===a||"object"!=typeof a||Array.isArray(a)||a instanceof Date)}function j(a){this.name="MyError",this.message=a,this.stack=(new Error).stack}function k(a,b){f(a);return a}function l(a,b){var c=a[b];e(a,b,function(){return N(c.apply(a,arguments))})}function m(a,b,c){var d=c&&c.deep;if(a in this&&(d&&this[a]!==b&&i(b)&&i(this[a])&&(b=N.merge(this[a],b,{deep:!0,mode:"replace"})),h(this[a],b)))return this;var e=t.call(this);return 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H(f)}function O(a){function b(){var b=[].slice.call(arguments),c=b.shift();return a.apply(c,b)}return b}function P(a,b){function c(){var c=[].slice.call(arguments),d=c.shift();return Array.isArray(d)?b.apply(d,c):a.apply(d,c)}return c}function Q(a,b,c){function d(){var d=[].slice.call(arguments),e=d.shift();return Array.isArray(e)?b.apply(e,d):e instanceof Date?c.apply(e,d):a.apply(e,d)}return d}var R=Symbol["for"]("react.element"),S=Symbol["for"]("react.transitional.element"),T={use_static:!1};c(b)&&void 0!==b.use_static&&(T.use_static=Boolean(b.use_static));var U="__immutable_invariants_hold",V=["setPrototypeOf"],W=["keys"],X=V.concat(["push","pop","sort","splice","shift","unshift","reverse"]),Y=W.concat(["map","filter","slice","concat","reduce","reduceRight"]),Z=V.concat(["setDate","setFullYear","setHours","setMilliseconds","setMinutes","setMonth","setSeconds","setTime","setUTCDate","setUTCFullYear","setUTCHours","setUTCMilliseconds","setUTCMinutes","setUTCMonth","setUTCSeconds","setYear"]);j.prototype=new Error,j.prototype.constructor=Error;var $=N([]),_=N({});return N.from=N,N.isImmutable=g,N.ImmutableError=j,N.merge=O(x),N.replace=O(y),N.without=O(s),N.asMutable=Q(F,t,q),N.set=P(A,m),N.setIn=P(z,n),N.update=O(B),N.updateIn=O(D),N.getIn=O(E),N.flatMap=O(r),N.asObject=O(u),T.use_static||(N["static"]=a({use_static:!0})),Object.freeze(N),N}var b=a();"function"==typeof define&&define.amd?define(function(){return b}):"object"==typeof module?module.exports=b:"object"==typeof exports?exports.Immutable=b:"object"==typeof 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\ No newline at end of file

From 4a6c1544d1040c819f53c3264b05e15210ea3ca2 Mon Sep 17 00:00:00 2001
From: Junshan Liu <junshan_liu@esri.com>
Date: Thu, 13 Mar 2025 15:00:25 +0800
Subject: [PATCH 3/4] update package.json

---
 package.json | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/package.json b/package.json
index 1a2ccbf..2f4eef5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
-  "name": "seamless-immutable",
-  "version": "7.1.4",
+  "name": "@qlqllu/seamless-immutable",
+  "version": "7.1.5",
   "description": "Immutable data structures for JavaScript which are backwards-compatible with normal JS Arrays and Objects.",
   "main": "src/seamless-immutable.js",
   "browser": "seamless-immutable.development.js",
@@ -34,7 +34,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/rtfeldman/seamless-immutable.git"
+    "url": "https://github.com/qlqllu/seamless-immutable"
   },
   "keywords": [
     "immutable"
@@ -49,5 +49,5 @@
     "validthis": true,
     "proto": true
   },
-  "homepage": "https://github.com/rtfeldman/seamless-immutable"
+  "homepage": "https://github.com/qlqllu/seamless-immutable"
 }

From b56c9c3dfc6d1f5923d36a9c6b3a7ae2679fd3c0 Mon Sep 17 00:00:00 2001
From: Junshan Liu <junshan_liu@esri.com>
Date: Wed, 13 Aug 2025 09:21:03 +0800
Subject: [PATCH 4/4] Update README.md

---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 6336c4b..18d4078 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+This repo is forked from [rtfeldman/seamless-immutable](https://github.com/rtfeldman/seamless-immutable) to support React 19.
+------------------
+
 seamless-immutable
 ==================