react app

react-app/node_modules/babel-plugin-transform-react-display-name/lib/index.js

@@ -0,0 +1,109 @@
+"use strict";
+
+var _interopRequireDefault = require("babel-runtime/helpers/interop-require-default")["default"];
+
+exports.__esModule = true;
+
+var _path = require("path");
+
+var _path2 = _interopRequireDefault(_path);
+
+exports["default"] = function (_ref) {
+  var t = _ref.types;
+
+  function addDisplayName(id, call) {
+    var props = call.arguments[0].properties;
+    var safe = true;
+
+    for (var i = 0; i < props.length; i++) {
+      var prop = props[i];
+      var key = t.toComputedKey(prop);
+      if (t.isLiteral(key, { value: "displayName" })) {
+        safe = false;
+        break;
+      }
+    }
+
+    if (safe) {
+      props.unshift(t.objectProperty(t.identifier("displayName"), t.stringLiteral(id)));
+    }
+  }
+
+  var isCreateClassCallExpression = t.buildMatchMemberExpression("React.createClass");
+
+  function isCreateClass(node) {
+    if (!node || !t.isCallExpression(node)) return false;
+
+    // not React.createClass call member object
+    if (!isCreateClassCallExpression(node.callee)) return false;
+
+    // no call arguments
+    var args = node.arguments;
+    if (args.length !== 1) return false;
+
+    // first node arg is not an object
+    var first = args[0];
+    if (!t.isObjectExpression(first)) return false;
+
+    return true;
+  }
+
+  return {
+    visitor: {
+      ExportDefaultDeclaration: function ExportDefaultDeclaration(_ref2, state) {
+        var node = _ref2.node;
+
+        if (isCreateClass(node.declaration)) {
+          var displayName = state.file.opts.basename;
+
+          // ./{module name}/index.js
+          if (displayName === "index") {
+            displayName = _path2["default"].basename(_path2["default"].dirname(state.file.opts.filename));
+          }
+
+          addDisplayName(displayName, node.declaration);
+        }
+      },
+
+      CallExpression: function CallExpression(path) {
+        var node = path.node;
+
+        if (!isCreateClass(node)) return;
+
+        var id = undefined;
+
+        // crawl up the ancestry looking for possible candidates for displayName inference
+        path.find(function (path) {
+          if (path.isAssignmentExpression()) {
+            id = path.node.left;
+          } else if (path.isObjectProperty()) {
+            id = path.node.key;
+          } else if (path.isVariableDeclarator()) {
+            id = path.node.id;
+          } else if (path.isStatement()) {
+            // we've hit a statement, we should stop crawling up
+            return true;
+          }
+
+          // we've got an id! no need to continue
+          if (id) return true;
+        });
+
+        // ensure that we have an identifier we can inherit from
+        if (!id) return;
+
+        // foo.bar -> bar
+        if (t.isMemberExpression(id)) {
+          id = id.property;
+        }
+
+        // identifiers are the only thing we can reliably get a name from
+        if (t.isIdentifier(id)) {
+          addDisplayName(id.name, node);
+        }
+      }
+    }
+  };
+};
+
+module.exports = exports["default"];