Add react helpers to babel-types

types/babel-types/babel-types-tests.ts

@@ -29,3 +29,30 @@ t.assertBinaryExpression(ast);
 t.assertBinaryExpression(ast, { operator: "*" });
 
 var exp: t.Expression = t.nullLiteral();
+
+// React examples:
+
+// https://github.com/babel/babel/blob/4e50b2d9d9c376cee7a2cbf56553fe5b982ea53c/packages/babel-plugin-transform-react-inline-elements/src/index.js#L61
+traverse(ast, {
+    JSXElement(path, file) {
+        const { node } = path;
+        const open = node.openingElement;
+
+        // init
+        const type = open.name;
+
+        let newType: t.StringLiteral;
+        if (t.isJSXIdentifier(type) && t.react.isCompatTag(type.name)) {
+            newType = t.stringLiteral(type.name);
+        }
+
+        const args: any[] = [];
+        if (node.children.length) {
+            const children = t.react.buildChildren(node);
+            args.push(
+                t.unaryExpression("void", t.numericLiteral(0), true),
+                ...children,
+            );
+        }
+    }
+});

types/babel-types/index.d.ts

@@ -1,6 +1,8 @@
-// Type definitions for babel-types v6.7
+// Type definitions for babel-types v6.25
 // Project: https://github.com/babel/babel/tree/master/packages/babel-types
-// Definitions by: Troy Gerwien <https://github.com/yortus>, Sam Baxter <https://github.com/baxtersa>
+// Definitions by: Troy Gerwien <https://github.com/yortus>
+//                 Sam Baxter <https://github.com/baxtersa>
+//                 Marvin Hagemeister <https://github.com/marvinhagemeister>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 export interface Comment {
@@ -1226,6 +1228,13 @@ export function isUser(node: Object, opts?: Object): boolean;
 export function isGenerated(node: Object, opts?: Object): boolean;
 export function isPure(node: Object, opts?: Object): boolean;
 
+// React specific
+interface ReactHelpers {
+    isCompatTag(tagName?: string): boolean;
+    buildChildren(node: Object): Object[];
+}
+export const react: ReactHelpers;
+
 export function assertArrayExpression(node: Object, opts?: Object): void;
 export function assertAssignmentExpression(node: Object, opts?: Object): void;
 export function assertBinaryExpression(node: Object, opts?: Object): void;