New: support for shorthand fragments (fixes eslint#503)

Author: Will Sabransky

lib/ast-node-types.js

@@ -62,13 +62,16 @@ module.exports = {
     ImportSpecifier: "ImportSpecifier",
     JSXAttribute: "JSXAttribute",
     JSXClosingElement: "JSXClosingElement",
+    JSXClosingFragment: "JSXClosingFragment",
     JSXElement: "JSXElement",
     JSXEmptyExpression: "JSXEmptyExpression",
     JSXExpressionContainer: "JSXExpressionContainer",
+    JSXFragment: "JSXFragment",
     JSXIdentifier: "JSXIdentifier",
     JSXMemberExpression: "JSXMemberExpression",
     JSXNamespacedName: "JSXNamespacedName",
     JSXOpeningElement: "JSXOpeningElement",
+    JSXOpeningFragment: "JSXOpeningFragment",
     JSXSpreadAttribute: "JSXSpreadAttribute",
     JSXSpreadChild: "JSXSpreadChild",
     JSXText: "JSXText",

lib/convert.js

@@ -1842,6 +1842,16 @@ module.exports = function convert(config) {
 
             break;
 
+        case SyntaxKind.JsxFragment:
+            Object.assign(result, {
+              type: AST_NODE_TYPES.JSXFragment,
+              openingElement: convertChild(node.openingElement),
+              closingElement: convertChild(node.closingElement),
+              children: node.children.map(convertChild)
+            });
+
+            break;
+
         case SyntaxKind.JsxSelfClosingElement: {
             /**
              * Convert SyntaxKind.JsxSelfClosingElement to SyntaxKind.JsxOpeningElement,
@@ -1882,6 +1892,19 @@ module.exports = function convert(config) {
             });
             break;
 
+        case SyntaxKind.JsxOpeningFragment:
+            Object.assign(result, {
+              type: AST_NODE_TYPES.JSXOpeningFragment,
+              selfClosing: false,
+            });
+            break;
+
+        case SyntaxKind.JsxClosingFragment:
+            Object.assign(result, {
+              type: AST_NODE_TYPES.JSXClosingFragment,
+            });
+            break;
+
         case SyntaxKind.JsxExpression: {
             const eloc = ast.getLineAndCharacterOfPosition(result.range[0] + 1);
             const expression = (node.expression) ? convertChild(node.expression) : {