From 09e6a49bea6d6fe5af802905676253fc131b8e5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manuel=20S=C3=A1nchez?= <manuel@msanchez.dev>
Date: Sat, 27 Dec 2025 18:22:11 +0000
Subject: [PATCH] Inline fixed get-params + handle falsy values in flatTree

---
 .changeset/puny-phones-like.md             |  5 ++
 packages/redux-devtools-utils/package.json |  2 -
 packages/redux-devtools-utils/src/index.ts | 72 +++++++++++++++++++++-
 pnpm-lock.yaml                             | 16 -----
 4 files changed, 76 insertions(+), 19 deletions(-)
 create mode 100644 .changeset/puny-phones-like.md

diff --git a/.changeset/puny-phones-like.md b/.changeset/puny-phones-like.md
new file mode 100644
index 00000000..5b1ab068
--- /dev/null
+++ b/.changeset/puny-phones-like.md
@@ -0,0 +1,5 @@
+---
+'@redux-devtools/utils': patch
+---
+
+Fix function parameters detection
diff --git a/packages/redux-devtools-utils/package.json b/packages/redux-devtools-utils/package.json
index 264e4b28..7afab6c5 100644
--- a/packages/redux-devtools-utils/package.json
+++ b/packages/redux-devtools-utils/package.json
@@ -35,8 +35,6 @@
     "@babel/runtime": "^7.28.4",
     "@redux-devtools/core": "workspace:^",
     "@redux-devtools/serialize": "workspace:^",
-    "@types/get-params": "^0.1.2",
-    "get-params": "^0.1.2",
     "immutable": "^5.1.4",
     "jsan": "^3.1.14",
     "nanoid": "^5.1.6",
diff --git a/packages/redux-devtools-utils/src/index.ts b/packages/redux-devtools-utils/src/index.ts
index 75120714..63d2b1dc 100644
--- a/packages/redux-devtools-utils/src/index.ts
+++ b/packages/redux-devtools-utils/src/index.ts
@@ -1,4 +1,3 @@
-import getParams from 'get-params';
 import jsan from 'jsan';
 import { nanoid } from 'nanoid/non-secure';
 import { immutableSerialize } from '@redux-devtools/serialize';
@@ -15,13 +14,84 @@ export interface ActionCreatorObject {
   readonly args: readonly string[];
 }
 
+function getParams(func: Function) {
+  if (typeof func !== 'function') return [];
+
+  const src = func
+    .toString()
+    // remove comments
+    .replace(/\/\*[\s\S]*?\*\//g, '')
+    .replace(/\/\/.*$/gm, '')
+    .trim();
+
+  let paramsSrc = '';
+
+  // function foo(a, b)
+  const fnMatch = src.match(/^[^(]*\(\s*([^)]*)\)/);
+
+  // (a, b) => or a =>
+  const arrowMatch = src.match(/^(?:\(\s*([^)]*)\)|([^\s=]+))\s*=>/);
+
+  if (fnMatch) {
+    paramsSrc = fnMatch[1] ?? '';
+  } else if (arrowMatch) {
+    paramsSrc = arrowMatch[1] ?? arrowMatch[2] ?? '';
+  } else {
+    return [];
+  }
+
+  if (!paramsSrc) return [];
+
+  const params = [];
+  let current = '';
+  let depth = 0;
+
+  for (let i = 0; i < paramsSrc.length; i++) {
+    const ch = paramsSrc[i];
+
+    if (ch === ',' && depth === 0) {
+      params.push(current.trim());
+      current = '';
+      continue;
+    }
+
+    if (ch === '{' || ch === '[' || ch === '(') depth++;
+    if (ch === '}' || ch === ']' || ch === ')') depth--;
+
+    current += ch;
+  }
+
+  if (current.trim()) {
+    params.push(current.trim());
+  }
+
+  // remove default values: a = 1 → a
+  return params.map((p, i) => {
+    const cleaned = p.replace(/=.*/, '').trim();
+
+    // destructured parameter
+    if (
+      cleaned.startsWith('{') ||
+      cleaned.startsWith('[') ||
+      cleaned.startsWith('...{') ||
+      cleaned.startsWith('...[')
+    ) {
+      return `arg_${i}`;
+    }
+
+    return cleaned;
+  });
+}
+
 function flatTree(
   obj: { [key: string]: ActionCreator<Action<string>> },
   namespace = '',
 ) {
+  if (!obj) return [];
   let functions: ActionCreatorObject[] = [];
   Object.keys(obj).forEach((key) => {
     const prop = obj[key];
+    if (!prop) return;
     if (typeof prop === 'function') {
       functions.push({
         name: namespace + (key || prop.name || 'anonymous'),
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 27ce9b94..c289ac6e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -2499,12 +2499,6 @@ importers:
       '@redux-devtools/serialize':
         specifier: workspace:^
         version: link:../redux-devtools-serialize
-      '@types/get-params':
-        specifier: ^0.1.2
-        version: 0.1.2
-      get-params:
-        specifier: ^0.1.2
-        version: 0.1.2
       immutable:
         specifier: ^5.1.4
         version: 5.1.4
@@ -4811,9 +4805,6 @@ packages:
   '@types/geojson@7946.0.16':
     resolution: {integrity: sha512-6C8nqWur3j98U6+lXDfTUWIfgvZU+EumvpHKcYjujKH7woYyLj2sUmff0tRhrqM7BohUw7Pz3ZB1jj2gW9Fvmg==}
 
-  '@types/get-params@0.1.2':
-    resolution: {integrity: sha512-ujqPyr1UDsOTDngJPV+WFbR0iHT5AfZKlNPMX6XOCnQcMhEqR+r64dVC/nwYCitqjR3DcpWofnOEAInUQmI/eA==}
-
   '@types/har-format@1.2.16':
     resolution: {integrity: sha512-fluxdy7ryD3MV6h8pTfTYpy/xQzCFC7m89nOH9y94cNqJ1mDIDPut7MnRHI3F6qRmh/cT2fUjG1MLdCNb4hE9A==}
 
@@ -7129,9 +7120,6 @@ packages:
     resolution: {integrity: sha512-pjzuKtY64GYfWizNAJ0fr9VqttZkNiK2iS430LtIHzjBEr6bX8Am2zm4sW4Ro5wjWW5cAlRL1qAMTcXbjNAO2Q==}
     engines: {node: '>=8.0.0'}
 
-  get-params@0.1.2:
-    resolution: {integrity: sha512-41eOxtlGgHQRbFyA8KTH+w+32Em3cRdfBud7j67ulzmIfmaHX9doq47s0fa4P5o9H64BZX9nrYI6sJvk46Op+Q==}
-
   get-port@7.1.0:
     resolution: {integrity: sha512-QB9NKEeDg3xxVwCCwJQ9+xycaz6pBB6iQ76wiWMl1927n0Kir6alPiP+yuiICLLU4jpMe08dXfpebuQppFA2zw==}
     engines: {node: '>=16'}
@@ -12929,8 +12917,6 @@ snapshots:
 
   '@types/geojson@7946.0.16': {}
 
-  '@types/get-params@0.1.2': {}
-
   '@types/har-format@1.2.16': {}
 
   '@types/hex-rgba@1.0.3': {}
@@ -15895,8 +15881,6 @@ snapshots:
 
   get-package-type@0.1.0: {}
 
-  get-params@0.1.2: {}
-
   get-port@7.1.0: {}
 
   get-proto@1.0.1: