convert @babel/plugin-transform-react-jsx to typescript (#13221)

* babel-plugin-transform-react-jsx flowts rename

* babel-plugin-transform-react-jsx flowts convert

* babel-plugin-transform-react-jsx

* babel-plugin-transform-react-jsx fix

* make generate-tsconfig

* yarn install

* babel-plugin-transform-react-jsx remove unused typecast

packages/babel-plugin-transform-react-jsx/package.json

@@ -28,6 +28,7 @@
   },
   "devDependencies": {
     "@babel/core": "workspace:*",
-    "@babel/helper-plugin-test-runner": "workspace:*"
+    "@babel/helper-plugin-test-runner": "workspace:*",
+    "@babel/traverse": "workspace:*"
   }
 }

packages/babel-plugin-transform-react-jsx/src/create-plugin.ts

@@ -149,7 +149,7 @@ You can set \`throwIfNamespace: false\` to bypass this warning.`,
             let pragmaFragSet = !!options.pragmaFrag;
 
             if (file.ast.comments) {
-              for (const comment of (file.ast.comments: Array<Object>)) {
+              for (const comment of file.ast.comments) {
                 const sourceMatches = JSX_SOURCE_ANNOTATION_REGEX.exec(
                   comment.value,
                 );
@@ -313,6 +313,7 @@ You can set \`throwIfNamespace: false\` to bypass this warning.`,
         if (node.name === "this" && t.isReferenced(node, parent)) {
           return t.thisExpression();
         } else if (t.isValidIdentifier(node.name, false)) {
+          // @ts-expect-error todo(flow->ts)
           node.type = "Identifier";
         } else {
           return t.stringLiteral(node.name);
@@ -416,7 +417,7 @@ You can set \`throwIfNamespace: false\` to bypass this warning.`,
       const openingPath = path.get("openingElement");
       const args = [getTag(openingPath)];
 
-      let attribs = [];
+      const attribsArray = [];
       const extracted = Object.create(null);
 
       // for React.jsx, key, __source (dev), and __self (dev) is passed in as
@@ -443,17 +444,23 @@ You can set \`throwIfNamespace: false\` to bypass this warning.`,
               break;
             }
             default:
-              attribs.push(attr);
+              attribsArray.push(attr);
           }
         } else {
-          attribs.push(attr);
+          attribsArray.push(attr);
         }
       }
 
       const children = t.react.buildChildren(path.node);
 
-      if (attribs.length || children.length) {
-        attribs = buildJSXOpeningElementAttributes(attribs, file, children);
+      let attribs: t.ObjectExpression;
+
+      if (attribsArray.length || children.length) {
+        attribs = buildJSXOpeningElementAttributes(
+          attribsArray,
+          file,
+          children,
+        );
       } else {
         // attributes should never be null
         attribs = t.objectExpression([]);
@@ -555,6 +562,7 @@ You can set \`throwIfNamespace: false\` to bypass this warning.`,
       if (t.isIdentifier(tagExpr)) {
         tagName = tagExpr.name;
       } else if (t.isLiteral(tagExpr)) {
+        // @ts-expect-error todo(flow->ts) value in missing for NullLiteral
         tagName = tagExpr.value;
       }
 

tsconfig.json

@@ -25,6 +25,7 @@
     "./packages/babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining/src/**/*.ts",
     "./packages/babel-plugin-proposal-async-do-expressions/src/**/*.ts",
     "./packages/babel-plugin-syntax-async-do-expressions/src/**/*.ts",
+    "./packages/babel-plugin-transform-react-jsx/src/**/*.ts",
     "./packages/babel-template/src/**/*.ts",
     "./packages/babel-traverse/src/**/*.ts",
     "./packages/babel-types/src/**/*.ts"
@@ -100,6 +101,9 @@
       "@babel/plugin-syntax-async-do-expressions": [
         "./packages/babel-plugin-syntax-async-do-expressions/src"
       ],
+      "@babel/plugin-transform-react-jsx": [
+        "./packages/babel-plugin-transform-react-jsx/src"
+      ],
       "@babel/template": [
         "./packages/babel-template/src"
       ],

yarn.lock

@@ -643,6 +643,7 @@ __metadata:
   resolution: "@babel/helper-module-transforms@condition:BABEL_8_BREAKING?:workspace:^7.14.2#5131c1"
   dependencies:
     "@babel/helper-module-transforms-BABEL_8_BREAKING-false": "npm:@babel/helper-module-transforms@workspace:^7.14.2"
+  checksum: 99b7a76ae03cc33a6d7a2e970aa72831e096f15bc2c58be10fb297e3fa411d9ba344cd0f93590c1b802a1b4450b7ea29db9aeeb7aeb7b2f9241e751c20a5079c
   languageName: node
   linkType: hard
 
@@ -2750,6 +2751,7 @@ __metadata:
     "@babel/helper-plugin-test-runner": "workspace:*"
     "@babel/helper-plugin-utils": "workspace:^7.13.0"
     "@babel/plugin-syntax-jsx": "workspace:^7.12.13"
+    "@babel/traverse": "workspace:*"
     "@babel/types": "workspace:^7.13.12"
   peerDependencies:
     "@babel/core": ^7.0.0-0