Initial work to support advanced compilation of UMD bundles using GCC

.eslintignore

@@ -12,3 +12,6 @@ scripts/bench/benchmarks/**/*.js
 
 # React repository clone
 scripts/bench/remote-repo/
+
+# Externs
+externs/

externs/fbjs.ext.js

@@ -0,0 +1,30 @@
+/** @suppress {duplicate} */
+var ExecutionEnvironment;
+ExecutionEnvironment.canUseDOM;
+/** @suppress {duplicate} */
+var TouchEventUtils;
+/** @suppress {duplicate} */
+var camelizeStyleName;
+/** @suppress {duplicate} */
+var containsNode;
+/** @suppress {duplicate} */
+var emptyFunction;
+emptyFunction.thatReturns;
+emptyFunction.thatReturnsNull;
+emptyFunction.thatReturnsTrue;
+emptyFunction.thatReturnsFalse;
+emptyFunction.thatReturnsArgument;
+/** @suppress {duplicate} */
+var emptyObject;
+/** @suppress {duplicate} */
+var getActiveElement;
+/** @suppress {duplicate} */
+var hyphenateStyleName;
+/** @suppress {duplicate} */
+var invariant;
+/** @suppress {duplicate} */
+var memoizeStringOnly;
+/** @suppress {duplicate} */
+var shallowEqual;
+/** @suppress {duplicate} */
+var warning;

externs/react-art-UMD_PROD.ext.js

@@ -0,0 +1 @@
+var global;

externs/react-art.ext.js

@@ -0,0 +1,2 @@
+var requestIdleCallback;
+var cancelIdleCallback;

externs/react-call-return.ext.js

@@ -0,0 +1,8 @@
+/** @suppress {duplicate} */
+var unstable_createCall;
+/** @suppress {duplicate} */
+var unstable_createReturn;
+/** @suppress {duplicate} */
+var unstable_isCall;
+/** @suppress {duplicate} */
+var unstable_isReturn;

externs/react-dom-NODE_PROD.ext.js

@@ -0,0 +1,41 @@
+/** @suppress {duplicate} */
+var ReactTestUtils;
+ReactTestUtils.Simulate;
+ReactTestUtils.Simulate.change;
+ReactTestUtils.Simulate.click;
+ReactTestUtils.Simulate.keyDown;
+ReactTestUtils.Simulate.mouseEnter;
+ReactTestUtils.Simulate.mouseMove;
+ReactTestUtils.SimulateNative;
+ReactTestUtils.SimulateNative.blur;
+ReactTestUtils.SimulateNative.click;
+ReactTestUtils.SimulateNative.mouseIn;
+ReactTestUtils.SimulateNative.mouseMove;
+ReactTestUtils.SimulateNative.mouseOut;
+ReactTestUtils.SimulateNative.touchEnd;
+ReactTestUtils.SimulateNative.touchStart;
+ReactTestUtils.default;
+ReactTestUtils.findAllInRenderedTree;
+ReactTestUtils.findRenderedDOMComponentWithClass;
+ReactTestUtils.findRenderedDOMComponentWithTag;
+ReactTestUtils.isCompositeComponent;
+ReactTestUtils.isCompositeComponentWithType;
+ReactTestUtils.isDOMComponent;
+ReactTestUtils.mockComponent;
+ReactTestUtils.nativeTouchData;
+ReactTestUtils.renderIntoDocument;
+ReactTestUtils.scryRenderedComponentsWithType;
+ReactTestUtils.scryRenderedDOMComponentsWithClass;
+ReactTestUtils.scryRenderedDOMComponentsWithTag;
+ReactTestUtils.simulateNativeEventOnDOMComponent;
+ReactTestUtils.simulateNativeEventOnNode;
+
+/** @suppress {duplicate} */
+var stream;
+stream.Readable;
+stream.Readable._read;
+
+Error.prototype.suppressReactErrorLogging;
+
+var MockComponent;
+MockComponent.prototype.render.mockImplementation;

externs/react-dom.ext.js

@@ -0,0 +1,166 @@
+/** @suppress {duplicate} */
+var ReactDOM = {};
+ReactDOM.version;
+ReactDOM.findDOMNode;
+ReactDOM.hydrate;
+ReactDOM.render;
+ReactDOM.unstable_renderSubtreeIntoContainer;
+ReactDOM.unmountComponentAtNode;
+ReactDOM.createPortal;
+ReactDOM.unstable_createPortal;
+ReactDOM.unstable_batchedUpdates;
+ReactDOM.unstable_deferredUpdates;
+ReactDOM.flushSync;
+ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+
+/** @suppress {duplicate} */
+var ReactDOMServer = {};
+ReactDOMServer.renderToString;
+ReactDOMServer.renderToStaticMarkup;
+ReactDOMServer.renderToNodeStream;
+ReactDOMServer.renderToStaticNodeStream;
+
+/* Used by ReactInstanceMap */
+var _reactInternalFiber;
+
+/**
+ * React event system creates plugins and event properties dynamically.
+ * These externs are needed when consuming React as a JavaScript module
+ * in light of new ClojureScript compiler additions (as of version 1.9.456).
+ * See the following link for an example.
+ * https://github.com/facebook/react/blob/c7129c/src/renderers/dom/shared/eventPlugins/SimpleEventPlugin.js#L43
+ */
+/** @suppress {duplicate} */
+var ResponderEventPlugin;
+/** @suppress {duplicate} */
+var SimpleEventPlugin;
+/** @suppress {duplicate} */
+var TapEventPlugin;
+/** @suppress {duplicate} */
+var EnterLeaveEventPlugin;
+/** @suppress {duplicate} */
+var ChangeEventPlugin;
+/** @suppress {duplicate} */
+var SelectEventPlugin;
+/** @suppress {duplicate} */
+var BeforeInputEventPlugin;
+
+var bubbled;
+var captured;
+/* Keep in sync with BrowserEventConstants */
+var topAbort;
+var topAnimationEnd;
+var topAnimationIteration;
+var topAnimationStart;
+var topBlur;
+var topCancel;
+var topCanPlay;
+var topCanPlayThrough;
+var topChange;
+var topClick;
+var topClose;
+var topCompositionEnd;
+var topCompositionStart;
+var topCompositionUpdate;
+var topContextMenu;
+var topCopy;
+var topCut;
+var topDoubleClick;
+var topDrag;
+var topDragEnd;
+var topDragEnter;
+var topDragExit;
+var topDragLeave;
+var topDragOver;
+var topDragStart;
+var topDrop;
+var topDurationChange;
+var topEmptied;
+var topEncrypted;
+var topEnded;
+var topError;
+var topFocus;
+var topInput;
+var topKeyDown;
+var topKeyPress;
+var topKeyUp;
+var topLoadedData;
+var topLoad;
+var topLoadedMetadata;
+var topLoadStart;
+var topMouseDown;
+var topMouseMove;
+var topMouseOut;
+var topMouseOver;
+var topMouseUp;
+var topPaste;
+var topPause;
+var topPlay;
+var topPlaying;
+var topProgress;
+var topRateChange;
+var topScroll;
+var topSeeked;
+var topSeeking;
+var topSelectionChange;
+var topStalled;
+var topSuspend;
+var topTextInput;
+var topTimeUpdate;
+var topToggle;
+var topTouchCancel;
+var topTouchEnd;
+var topTouchMove;
+var topTouchStart;
+var topTransitionEnd;
+var topVolumeChange;
+var topWaiting;
+var topWheel;
+
+/* Keep in sync with CSSProperty */
+var animationIterationCount;
+var borderImageOutset;
+var borderImageSlice;
+var borderImageWidth;
+var boxFlex;
+var boxFlexGroup;
+var boxOrdinalGroup;
+var columnCount;
+var columns;
+var flex;
+var flexGrow;
+var flexPositive;
+var flexShrink;
+var flexNegative;
+var flexOrder;
+var gridRow;
+var gridRowEnd;
+var gridRowSpan;
+var gridRowStart;
+var gridColumn;
+var gridColumnEnd;
+var gridColumnSpan;
+var gridColumnStart;
+var fontWeight;
+var lineClamp;
+var lineHeight;
+var opacity;
+var order;
+var orphans;
+var tabSize;
+var widows;
+var zIndex;
+var zoom;
+var fillOpacity;
+var floodOpacity;
+var stopOpacity;
+var strokeDasharray;
+var strokeDashoffset;
+var strokeMiterlimit;
+var strokeOpacity;
+var strokeWidth;
+
+/* Globals not provided by the BROWSER environment */
+var requestIdleCallback;
+var cancelIdleCallback;
+var MSApp;

externs/react-noop-renderer.ext.js

@@ -0,0 +1 @@
+var regeneratorRuntime;

externs/react-test-renderer.ext.js

@@ -0,0 +1,12 @@
+/** @suppress {duplicate} */
+var ReactShallowRenderer;
+ReactShallowRenderer.createRenderer;
+ReactShallowRenderer.prototype.getMountedInstance;
+ReactShallowRenderer.prototype.getRenderedOutput;
+ReactShallowRenderer.prototype.render;
+ReactShallowRenderer.prototype.unmount;
+
+/** @suppress {duplicate} */
+var ReactTestRendererFiber;
+ReactTestRendererFiber.prototype.create;
+ReactTestRendererFiber.prototype.unstable_batchedUpdates;