feat: add React 19 replace default props transform

.gitignore

@@ -1,3 +1,4 @@
 .DS_STORE
 node_modules
 npm-debug.log
+package-lock.json

package.json

@@ -11,6 +11,8 @@
     "jscodeshift": "jscodeshift"
   },
   "dependencies": {
+    "@codemod.com/codemod-utils": "^1.0.0",
+    "@types/jscodeshift": "^0.12.0",
     "chalk": "^2.4.2",
     "eslint": "^6.6.0",
     "execa": "^3.2.0",
@@ -22,7 +24,10 @@
   },
   "jest": {
     "globals": {
-      "baseDir": "../"
+      "baseDir": "../",
+      "ts-jest": {
+        "tsconfig": "./tsconfig.codemod.json"
+      }
     },
     "testEnvironment": "node",
     "roots": [
@@ -32,13 +37,23 @@
     "transform": {
       "^.+\\.jsx?$": "babel-jest",
       "^.+\\.tsx?$": "ts-jest"
-    }
+    },
+    "transformIgnorePatterns": [
+      "/node_modules/(?!@codemod\\.com/codemod-utils)/.+\\.js$"
+    ],
+    "moduleNameMapper": {
+      "^@codemod\\.com/codemod-utils$": "<rootDir>/node_modules/@codemod.com/codemod-utils/dist/index.cjs"
+    },
+    "moduleFileExtensions": ["js", "ts", "tsx", "jsx"],
+    "extensionsToTreatAsEsm": [".ts", ".tsx", ".js", ".jsx"]
   },
   "devDependencies": {
     "@babel/core": "^7.6.4",
     "@babel/plugin-proposal-object-rest-spread": "^7.6.2",
     "@babel/preset-env": "^7.6.3",
+    "@jest/globals": "^29.7.0",
     "@types/jest": "^24.9.0",
+    "@types/node": "^22.12.0",
     "@typescript-eslint/parser": "^7.8.0",
     "babel-eslint": "^10.0.3",
     "babel-jest": "^24.9.0",

transforms/__testfixtures__/react-19-replace-default-props/button-jsx-example-input.jsx

@@ -0,0 +1,8 @@
+const Button = ({ size, color }) => {
+  return <button style={{ color, fontSize: size }}>Click me</button>;
+};
+
+Button.defaultProps = {
+  size: "16px",
+  color: "blue",
+};

transforms/__testfixtures__/react-19-replace-default-props/button-jsx-example-output.jsx

@@ -0,0 +1,3 @@
+const Button = ({ size = "16px", color = "blue" }) => {
+  return <button style={{ color, fontSize: size }}>Click me</button>;
+};

transforms/__testfixtures__/react-19-replace-default-props/multiple-default-props.input.tsx

@@ -0,0 +1,8 @@
+const Button = ({ size, color }) => {
+  return <button style={{ color, fontSize: size }}>Click me</button>;
+};
+
+Button.defaultProps = {
+  size: "16px",
+  color: "blue",
+};

transforms/__testfixtures__/react-19-replace-default-props/multiple-default-props.output.tsx

@@ -0,0 +1,3 @@
+const Button = ({ size = "16px", color = "blue" }) => {
+  return <button style={{ color, fontSize: size }}>Click me</button>;
+};

transforms/__testfixtures__/react-19-replace-default-props/nested-destructuring.input.tsx

@@ -0,0 +1,15 @@
+const Card = ({ user: { name, age } }) => {
+  return (
+    <div>
+      <p>{name}</p>
+      <p>{age}</p>
+    </div>
+  );
+};
+
+Card.defaultProps = {
+  user: {
+    name: "Unknown",
+    age: 0,
+  },
+};

transforms/__testfixtures__/react-19-replace-default-props/nested-destructuring.output.tsx

@@ -0,0 +1,13 @@
+const cardDefaultPropUser = {
+  name: "Unknown",
+  age: 0,
+};
+
+const Card = ({ user: { name, age } = cardDefaultPropUser }) => {
+  return (
+    <div>
+      <p>{name}</p>
+      <p>{age}</p>
+    </div>
+  );
+};

transforms/__testfixtures__/react-19-replace-default-props/partial-default-props.input.tsx

@@ -0,0 +1,7 @@
+const Span = ({ fontSize, children }) => {
+  return <span style={{ fontSize }}>{children}</span>;
+};
+
+Span.defaultProps = {
+  fontSize: "20px",
+};

transforms/__testfixtures__/react-19-replace-default-props/partial-default-props.output.tsx

@@ -0,0 +1,3 @@
+const Span = ({ fontSize = "20px", children }) => {
+  return <span style={{ fontSize }}>{children}</span>;
+};

transforms/__testfixtures__/react-19-replace-default-props/props-not-destructured.input.tsx

@@ -0,0 +1,10 @@
+const C = (props) => {
+  console.log(props.helloWorld);
+  return <>{props.text}</>;
+};
+
+C.defaultProps = {
+  text: "Hello",
+  test: 2,
+  helloWorld: true,
+};

transforms/__testfixtures__/react-19-replace-default-props/props-not-destructured.output.tsx

@@ -0,0 +1,11 @@
+const C = (props) => {
+  props = {
+    ...props,
+    text: typeof props.text === "undefined" ? "Hello" : props.text,
+    test: typeof props.test === "undefined" ? 2 : props.test,
+    helloWorld: typeof props.helloWorld === "undefined" ? true : props.helloWorld
+  };
+
+  console.log(props.helloWorld);
+  return <>{props.text}</>;
+};

transforms/__testfixtures__/react-19-replace-default-props/rest-element-example.input.jsx

@@ -0,0 +1,5 @@
+const MyComp = ({foo, ...props}) => {
+    console.log(props.bar)
+}
+
+MyComp.defaultProps = { foo: "hello", bar: "bye", test: 2 };

transforms/__testfixtures__/react-19-replace-default-props/rest-element-example.output.jsx

@@ -0,0 +1,9 @@
+const MyComp = ({foo = "hello", ...props}) => {
+    props = {
+        ...props,
+        bar: typeof props.bar === "undefined" ? "bye" : props.bar,
+        test: typeof props.test === "undefined" ? 2 : props.test
+    };
+
+    console.log(props.bar)
+}

transforms/__testfixtures__/react-19-replace-default-props/single-default-prop.input.tsx

@@ -0,0 +1,7 @@
+const C = ({ text }) => {
+  return <>{text}</>;
+};
+
+C.defaultProps = {
+  text: "test",
+};

transforms/__testfixtures__/react-19-replace-default-props/single-default-prop.output.tsx

@@ -0,0 +1,3 @@
+const C = ({ text = "test" }) => {
+  return <>{text}</>;
+};

transforms/__testfixtures__/react-19-replace-default-props/with-functions.input.tsx

@@ -0,0 +1,8 @@
+const List = ({ items, renderItem }) => {
+  return <ul>{items.map(renderItem)}</ul>;
+};
+
+List.defaultProps = {
+  items: [],
+  renderItem: (item) => <li key={item}>{item}</li>,
+};

transforms/__testfixtures__/react-19-replace-default-props/with-functions.output.tsx

@@ -0,0 +1,5 @@
+const listDefaultPropItems = [];
+const listDefaultPropRenderItem = (item) => <li key={item}>{item}</li>;
+const List = ({ items = listDefaultPropItems, renderItem = listDefaultPropRenderItem }) => {
+  return <ul>{items.map(renderItem)}</ul>;
+};

transforms/__testfixtures__/react-19-replace-default-props/with-rest-props.input.tsx

@@ -0,0 +1,12 @@
+const Link = ({ href, children, ...props }) => {
+  return (
+    <a href={href} {...props}>
+      {children}
+    </a>
+  );
+};
+
+Link.defaultProps = {
+  href: "#",
+  children: "Click here",
+};

transforms/__testfixtures__/react-19-replace-default-props/with-rest-props.output.tsx

@@ -0,0 +1,7 @@
+const Link = ({ href = "#", children = "Click here", ...props }) => {
+  return (
+    <a href={href} {...props}>
+      {children}
+    </a>
+  );
+};