foo<\/div>;\n- checkFooDiv(await render());\n+ const FunctionComponent = () =>

foo<\/div>;\n+ checkFooDiv(await render());\n });\n \n itRenders('ES6 class components', async render => {\ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactDOMServerIntegrationLegacyContext-test.js b\/packages\/react-dom\/src\/__tests__\/ReactDOMServerIntegrationLegacyContext-test.js\nindex d13279c275..e801902011 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactDOMServerIntegrationLegacyContext-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactDOMServerIntegrationLegacyContext-test.js\n@@ -76,14 +76,14 @@ describe('ReactDOMServerIntegration', () => {\n });\n \n itRenders('stateless child with context', async render => {\n- function StatelessChildWithContext(props, context) {\n+ function FunctionChildWithContext(props, context) {\n return

{context.text}<\/div>;\n }\n- StatelessChildWithContext.contextTypes = {text: PropTypes.string};\n+ FunctionChildWithContext.contextTypes = {text: PropTypes.string};\n \n const e = await render(\n \n- \n+ \n <\/PurpleContext>,\n );\n expect(e.textContent).toBe('purple');\n@@ -106,14 +106,14 @@ describe('ReactDOMServerIntegration', () => {\n });\n \n itRenders('stateless child without context', async render => {\n- function StatelessChildWithoutContext(props, context) {\n+ function FunctionChildWithoutContext(props, context) {\n \/\/ this should render blank; context isn't passed to this component.\n return

{context.text}<\/div>;\n }\n \n const e = await render(\n \n- \n+ \n <\/PurpleContext>,\n );\n expect(e.textContent).toBe('');\n@@ -137,17 +137,17 @@ describe('ReactDOMServerIntegration', () => {\n });\n \n itRenders('stateless child with wrong context', async render => {\n- function StatelessChildWithWrongContext(props, context) {\n+ function FunctionChildWithWrongContext(props, context) {\n \/\/ this should render blank; context.text isn't passed to this component.\n return

{context.text}<\/div>;\n }\n- StatelessChildWithWrongContext.contextTypes = {\n+ FunctionChildWithWrongContext.contextTypes = {\n foo: PropTypes.string,\n };\n \n const e = await render(\n \n- \n+ \n <\/PurpleContext>,\n );\n expect(e.textContent).toBe('');\ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactDOMServerIntegrationNewContext-test.js b\/packages\/react-dom\/src\/__tests__\/ReactDOMServerIntegrationNewContext-test.js\nindex 265ece3ed4..af9a6095e0 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactDOMServerIntegrationNewContext-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactDOMServerIntegrationNewContext-test.js\n@@ -75,13 +75,13 @@ describe('ReactDOMServerIntegration', () => {\n });\n \n itRenders('stateless child with context', async render => {\n- function StatelessChildWithContext(props) {\n+ function FunctionChildWithContext(props) {\n return {text => text}<\/Consumer>;\n }\n \n const e = await render(\n \n- \n+ \n <\/PurpleContext>,\n );\n expect(e.textContent).toBe('purple');\n@@ -103,7 +103,7 @@ describe('ReactDOMServerIntegration', () => {\n });\n \n itRenders('stateless child with wrong context', async render => {\n- function StatelessChildWithWrongContext(props) {\n+ function FunctionChildWithWrongContext(props) {\n return (\n

\n {text => text}<\/Consumer>\n@@ -111,7 +111,7 @@ describe('ReactDOMServerIntegration', () => {\n );\n }\n \n- const e = await render();\n+ const e = await render();\n expect(e.textContent).toBe('none');\n });\n \ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactStatelessComponent-test.js b\/packages\/react-dom\/src\/__tests__\/ReactFunctionComponent-test.js\nsimilarity index 82%\nrename from packages\/react-dom\/src\/__tests__\/ReactStatelessComponent-test.js\nrename to packages\/react-dom\/src\/__tests__\/ReactFunctionComponent-test.js\nindex ee359ffb82..8fd8830787 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactStatelessComponent-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactFunctionComponent-test.js\n@@ -14,11 +14,11 @@ let React;\n let ReactDOM;\n let ReactTestUtils;\n \n-function StatelessComponent(props) {\n+function FunctionComponent(props) {\n return

{props.name}<\/div>;\n }\n \n-describe('ReactStatelessComponent', () => {\n+describe('ReactFunctionComponent', () => {\n beforeEach(() => {\n jest.resetModuleRegistry();\n PropTypes = require('prop-types');\n@@ -29,7 +29,7 @@ describe('ReactStatelessComponent', () => {\n \n it('should render stateless component', () => {\n const el = document.createElement('div');\n- ReactDOM.render(, el);\n+ ReactDOM.render(, el);\n \n expect(el.textContent).toBe('A');\n });\n@@ -37,7 +37,7 @@ describe('ReactStatelessComponent', () => {\n it('should update stateless component', () => {\n class Parent extends React.Component {\n render() {\n- return ;\n+ return ;\n }\n }\n \n@@ -52,7 +52,7 @@ describe('ReactStatelessComponent', () => {\n it('should unmount stateless component', () => {\n const container = document.createElement('div');\n \n- ReactDOM.render(, container);\n+ ReactDOM.render(, container);\n expect(container.textContent).toBe('A');\n \n ReactDOM.unmountComponentAtNode(container);\n@@ -98,29 +98,29 @@ describe('ReactStatelessComponent', () => {\n expect(el.textContent).toBe('mest');\n });\n \n- it('should warn for getDerivedStateFromProps on a functional component', () => {\n- function StatelessComponentWithChildContext() {\n+ it('should warn for getDerivedStateFromProps on a function component', () => {\n+ function FunctionComponentWithChildContext() {\n return null;\n }\n- StatelessComponentWithChildContext.getDerivedStateFromProps = function() {};\n+ FunctionComponentWithChildContext.getDerivedStateFromProps = function() {};\n \n const container = document.createElement('div');\n \n expect(() =>\n- ReactDOM.render(, container),\n+ ReactDOM.render(, container),\n ).toWarnDev(\n- 'StatelessComponentWithChildContext: Stateless ' +\n- 'functional components do not support getDerivedStateFromProps.',\n+ 'FunctionComponentWithChildContext: Function ' +\n+ 'components do not support getDerivedStateFromProps.',\n {withoutStack: true},\n );\n });\n \n- it('should warn for childContextTypes on a functional component', () => {\n- function StatelessComponentWithChildContext(props) {\n+ it('should warn for childContextTypes on a function component', () => {\n+ function FunctionComponentWithChildContext(props) {\n return

{props.name}<\/div>;\n }\n \n- StatelessComponentWithChildContext.childContextTypes = {\n+ FunctionComponentWithChildContext.childContextTypes = {\n foo: PropTypes.string,\n };\n \n@@ -128,12 +128,12 @@ describe('ReactStatelessComponent', () => {\n \n expect(() =>\n ReactDOM.render(\n- ,\n+ ,\n container,\n ),\n ).toWarnDev(\n- 'StatelessComponentWithChildContext(...): childContextTypes cannot ' +\n- 'be defined on a functional component.',\n+ 'FunctionComponentWithChildContext(...): childContextTypes cannot ' +\n+ 'be defined on a function component.',\n {withoutStack: true},\n );\n });\n@@ -161,12 +161,12 @@ describe('ReactStatelessComponent', () => {\n ReactTestUtils.renderIntoDocument();\n }).toThrowError(\n __DEV__\n- ? 'Stateless function components cannot have refs.'\n+ ? 'Function components cannot have refs.'\n : \/\/ It happens because we don't save _owner in production for\n- \/\/ functional components.\n+ \/\/ function components.\n 'Element ref was specified as a string (me) but no owner was set. This could happen for one of' +\n ' the following reasons:\\n' +\n- '1. You may be adding a ref to a functional component\\n' +\n+ '1. You may be adding a ref to a function component\\n' +\n \"2. You may be adding a ref to a component that was not created inside a component's render method\\n\" +\n '3. You have multiple copies of React loaded\\n' +\n 'See https:\/\/fb.me\/react-refs-must-have-owner for more information.',\n@@ -182,7 +182,7 @@ describe('ReactStatelessComponent', () => {\n render() {\n return (\n \n- \n+ \n <\/Indirection>\n );\n }\n@@ -191,10 +191,10 @@ describe('ReactStatelessComponent', () => {\n expect(() =>\n ReactTestUtils.renderIntoDocument(),\n ).toWarnDev(\n- 'Warning: Stateless function components cannot be given refs. ' +\n+ 'Warning: Function components cannot be given refs. ' +\n 'Attempts to access this ref will fail.\\n\\nCheck the render method ' +\n 'of `ParentUsingStringRef`.\\n' +\n- ' in StatelessComponent (at **)\\n' +\n+ ' in FunctionComponent (at **)\\n' +\n ' in div (at **)\\n' +\n ' in Indirection (at **)\\n' +\n ' in ParentUsingStringRef (at **)',\n@@ -213,7 +213,7 @@ describe('ReactStatelessComponent', () => {\n render() {\n return (\n \n- {\n expect(arg).toBe(null);\n@@ -227,10 +227,10 @@ describe('ReactStatelessComponent', () => {\n expect(() =>\n ReactTestUtils.renderIntoDocument(),\n ).toWarnDev(\n- 'Warning: Stateless function components cannot be given refs. ' +\n+ 'Warning: Function components cannot be given refs. ' +\n 'Attempts to access this ref will fail.\\n\\nCheck the render method ' +\n 'of `ParentUsingFunctionRef`.\\n' +\n- ' in StatelessComponent (at **)\\n' +\n+ ' in FunctionComponent (at **)\\n' +\n ' in div (at **)\\n' +\n ' in Indirection (at **)\\n' +\n ' in ParentUsingFunctionRef (at **)',\n@@ -244,7 +244,7 @@ describe('ReactStatelessComponent', () => {\n \/\/ When owner uses JSX, we can use exact line location to dedupe warnings\n class AnonymousParentUsingJSX extends React.Component {\n render() {\n- return {}} \/>;\n+ return {}} \/>;\n }\n }\n Object.defineProperty(AnonymousParentUsingJSX, 'name', {value: undefined});\n@@ -255,9 +255,7 @@ describe('ReactStatelessComponent', () => {\n instance1 = ReactTestUtils.renderIntoDocument(\n ,\n );\n- }).toWarnDev(\n- 'Warning: Stateless function components cannot be given refs.',\n- );\n+ }).toWarnDev('Warning: Function components cannot be given refs.');\n \/\/ Should be deduped (offending element is on the same line):\n instance1.forceUpdate();\n \/\/ Should also be deduped (offending element is on the same line):\n@@ -266,7 +264,7 @@ describe('ReactStatelessComponent', () => {\n \/\/ When owner doesn't use JSX, and is anonymous, we warn once per internal instance.\n class AnonymousParentNotUsingJSX extends React.Component {\n render() {\n- return React.createElement(StatelessComponent, {\n+ return React.createElement(FunctionComponent, {\n name: 'A',\n ref: () => {},\n });\n@@ -281,20 +279,18 @@ describe('ReactStatelessComponent', () => {\n instance2 = ReactTestUtils.renderIntoDocument(\n ,\n );\n- }).toWarnDev(\n- 'Warning: Stateless function components cannot be given refs.',\n- );\n+ }).toWarnDev('Warning: Function components cannot be given refs.');\n \/\/ Should be deduped (same internal instance, no additional warnings)\n instance2.forceUpdate();\n \/\/ Could not be deduped (different internal instance):\n expect(() =>\n ReactTestUtils.renderIntoDocument(),\n- ).toWarnDev('Warning: Stateless function components cannot be given refs.');\n+ ).toWarnDev('Warning: Function components cannot be given refs.');\n \n \/\/ When owner doesn't use JSX, but is named, we warn once per owner name\n class NamedParentNotUsingJSX extends React.Component {\n render() {\n- return React.createElement(StatelessComponent, {\n+ return React.createElement(FunctionComponent, {\n name: 'A',\n ref: () => {},\n });\n@@ -303,9 +299,7 @@ describe('ReactStatelessComponent', () => {\n let instance3;\n expect(() => {\n instance3 = ReactTestUtils.renderIntoDocument();\n- }).toWarnDev(\n- 'Warning: Stateless function components cannot be given refs.',\n- );\n+ }).toWarnDev('Warning: Function components cannot be given refs.');\n \/\/ Should be deduped (same owner name, no additional warnings):\n instance3.forceUpdate();\n \/\/ Should also be deduped (same owner name, no additional warnings):\n@@ -337,7 +331,7 @@ describe('ReactStatelessComponent', () => {\n }\n \n expect(() => ReactTestUtils.renderIntoDocument()).toWarnDev(\n- 'Warning: Stateless function components cannot be given refs. ' +\n+ 'Warning: Function components cannot be given refs. ' +\n 'Attempts to access this ref will fail.\\n\\nCheck the render method ' +\n 'of `Parent`.\\n' +\n ' in Child (at **)\\n' +\ndiff --git a\/packages\/react-dom\/src\/__tests__\/ReactTestUtils-test.js b\/packages\/react-dom\/src\/__tests__\/ReactTestUtils-test.js\nindex eb6534f36a..687dbd1aae 100644\n--- a\/packages\/react-dom\/src\/__tests__\/ReactTestUtils-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/ReactTestUtils-test.js\n@@ -259,7 +259,7 @@ describe('ReactTestUtils', () => {\n });\n \n it('can scry with stateless components involved', () => {\n- const Stateless = () => (\n+ const Function = () => (\n

\n <\/div>\n@@ -269,7 +269,7 @@ describe('ReactTestUtils', () => {\n render() {\n return (\n

\n- \n+ \n

\n <\/div>\n );\ndiff --git a\/packages\/react-dom\/src\/__tests__\/multiple-copies-of-react-test.js b\/packages\/react-dom\/src\/__tests__\/multiple-copies-of-react-test.js\nindex 89ec1a8c7b..280af615cd 100644\n--- a\/packages\/react-dom\/src\/__tests__\/multiple-copies-of-react-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/multiple-copies-of-react-test.js\n@@ -27,7 +27,7 @@ describe('when different React version is used with string ref', () => {\n }).toThrow(\n 'Element ref was specified as a string (foo) but no owner was set. This could happen for one of' +\n ' the following reasons:\\n' +\n- '1. You may be adding a ref to a functional component\\n' +\n+ '1. You may be adding a ref to a function component\\n' +\n \"2. You may be adding a ref to a component that was not created inside a component's render method\\n\" +\n '3. You have multiple copies of React loaded\\n' +\n 'See https:\/\/fb.me\/react-refs-must-have-owner for more information.',\ndiff --git a\/packages\/react-dom\/src\/__tests__\/refs-test.js b\/packages\/react-dom\/src\/__tests__\/refs-test.js\nindex 32a55fb1f4..f3ce43adb1 100644\n--- a\/packages\/react-dom\/src\/__tests__\/refs-test.js\n+++ b\/packages\/react-dom\/src\/__tests__\/refs-test.js\n@@ -444,7 +444,7 @@ describe('creating element with ref in constructor', () => {\n }).toThrowError(\n 'Element ref was specified as a string (p) but no owner was set. This could happen for one of' +\n ' the following reasons:\\n' +\n- '1. You may be adding a ref to a functional component\\n' +\n+ '1. You may be adding a ref to a function component\\n' +\n \"2. You may be adding a ref to a component that was not created inside a component's render method\\n\" +\n '3. You have multiple copies of React loaded\\n' +\n 'See https:\/\/fb.me\/react-refs-must-have-owner for more information.',\ndiff --git a\/packages\/react-dom\/src\/test-utils\/ReactTestUtils.js b\/packages\/react-dom\/src\/test-utils\/ReactTestUtils.js\nindex dad3d0f14e..4c7ad289fb 100644\n--- a\/packages\/react-dom\/src\/test-utils\/ReactTestUtils.js\n+++ b\/packages\/react-dom\/src\/test-utils\/ReactTestUtils.js\n@@ -12,8 +12,8 @@ import * as ReactInstanceMap from 'shared\/ReactInstanceMap';\n import {\n ClassComponent,\n ClassComponentLazy,\n- FunctionalComponent,\n- FunctionalComponentLazy,\n+ FunctionComponent,\n+ FunctionComponentLazy,\n HostComponent,\n HostText,\n } from 'shared\/ReactWorkTags';\n@@ -93,8 +93,8 @@ function findAllInRenderedFiberTreeInternal(fiber, test) {\n node.tag === HostText ||\n node.tag === ClassComponent ||\n node.tag === ClassComponentLazy ||\n- node.tag === FunctionalComponent ||\n- node.tag === FunctionalComponentLazy\n+ node.tag === FunctionComponent ||\n+ node.tag === FunctionComponentLazy\n ) {\n const publicInst = node.stateNode;\n if (test(publicInst)) {\ndiff --git a\/packages\/react-is\/src\/__tests__\/ReactIs-test.js b\/packages\/react-is\/src\/__tests__\/ReactIs-test.js\nindex 86cca7a93e..6fc58b34cf 100644\n--- a\/packages\/react-is\/src\/__tests__\/ReactIs-test.js\n+++ b\/packages\/react-is\/src\/__tests__\/ReactIs-test.js\n@@ -38,7 +38,7 @@ describe('ReactIs', () => {\n }\n }\n \n- const StatelessComponent = () => React.createElement('div');\n+ const FunctionComponent = () => React.createElement('div');\n \n const ForwardRefComponent = React.forwardRef((props, ref) =>\n React.createElement(Component, {forwardedRef: ref, ...props}),\n@@ -48,7 +48,7 @@ describe('ReactIs', () => {\n \n expect(ReactIs.isValidElementType('div')).toEqual(true);\n expect(ReactIs.isValidElementType(Component)).toEqual(true);\n- expect(ReactIs.isValidElementType(StatelessComponent)).toEqual(true);\n+ expect(ReactIs.isValidElementType(FunctionComponent)).toEqual(true);\n expect(ReactIs.isValidElementType(ForwardRefComponent)).toEqual(true);\n expect(ReactIs.isValidElementType(Context.Provider)).toEqual(true);\n expect(ReactIs.isValidElementType(Context.Consumer)).toEqual(true);\ndiff --git a\/packages\/react-native-renderer\/src\/__tests__\/ReactNativeError-test.internal.js b\/packages\/react-native-renderer\/src\/__tests__\/ReactNativeError-test.internal.js\nindex fa03980ff2..f688d07a68 100644\n--- a\/packages\/react-native-renderer\/src\/__tests__\/ReactNativeError-test.internal.js\n+++ b\/packages\/react-native-renderer\/src\/__tests__\/ReactNativeError-test.internal.js\n@@ -40,16 +40,16 @@ describe('ReactNativeError', () => {\n \n const ref = React.createRef();\n \n- function FunctionalComponent(props) {\n+ function FunctionComponent(props) {\n return props.children;\n }\n \n class ClassComponent extends React.Component {\n render() {\n return (\n- \n+ \n \n- <\/FunctionalComponent>\n+ <\/FunctionComponent>\n );\n }\n }\n@@ -66,14 +66,14 @@ describe('ReactNativeError', () => {\n expect(componentStack).toBe(\n '\\n' +\n ' in View (at **)\\n' +\n- ' in FunctionalComponent (at **)\\n' +\n+ ' in FunctionComponent (at **)\\n' +\n ' in ClassComponent (at **)',\n );\n } else {\n expect(componentStack).toBe(\n '\\n' +\n ' in View\\n' +\n- ' in FunctionalComponent\\n' +\n+ ' in FunctionComponent\\n' +\n ' in ClassComponent',\n );\n }\ndiff --git a\/packages\/react-reconciler\/src\/ReactChildFiber.js b\/packages\/react-reconciler\/src\/ReactChildFiber.js\nindex ff37b11035..4151b00613 100644\n--- a\/packages\/react-reconciler\/src\/ReactChildFiber.js\n+++ b\/packages\/react-reconciler\/src\/ReactChildFiber.js\n@@ -21,7 +21,7 @@ import {\n REACT_PORTAL_TYPE,\n } from 'shared\/ReactSymbols';\n import {\n- FunctionalComponent,\n+ FunctionComponent,\n ClassComponent,\n ClassComponentLazy,\n HostText,\n@@ -140,7 +140,7 @@ function coerceRef(\n invariant(\n ownerFiber.tag === ClassComponent ||\n ownerFiber.tag === ClassComponentLazy,\n- 'Stateless function components cannot have refs.',\n+ 'Function components cannot have refs.',\n );\n inst = ownerFiber.stateNode;\n }\n@@ -183,7 +183,7 @@ function coerceRef(\n element._owner,\n 'Element ref was specified as a string (%s) but no owner was set. This could happen for one of' +\n ' the following reasons:\\n' +\n- '1. You may be adding a ref to a functional component\\n' +\n+ '1. You may be adding a ref to a function component\\n' +\n \"2. You may be adding a ref to a component that was not created inside a component's render method\\n\" +\n '3. You have multiple copies of React loaded\\n' +\n 'See https:\/\/fb.me\/react-refs-must-have-owner for more information.',\n@@ -1322,7 +1322,7 @@ function ChildReconciler(shouldTrackSideEffects) {\n \/\/ Intentionally fall through to the next case, which handles both\n \/\/ functions and classes\n \/\/ eslint-disable-next-lined no-fallthrough\n- case FunctionalComponent: {\n+ case FunctionComponent: {\n const Component = returnFiber.type;\n invariant(\n false,\ndiff --git a\/packages\/react-reconciler\/src\/ReactCurrentFiber.js b\/packages\/react-reconciler\/src\/ReactCurrentFiber.js\nindex 42b8e14001..378d3441ea 100644\n--- a\/packages\/react-reconciler\/src\/ReactCurrentFiber.js\n+++ b\/packages\/react-reconciler\/src\/ReactCurrentFiber.js\n@@ -10,8 +10,8 @@\n import ReactSharedInternals from 'shared\/ReactSharedInternals';\n import {\n IndeterminateComponent,\n- FunctionalComponent,\n- FunctionalComponentLazy,\n+ FunctionComponent,\n+ FunctionComponentLazy,\n ClassComponent,\n ClassComponentLazy,\n HostComponent,\n@@ -29,8 +29,8 @@ type LifeCyclePhase = 'render' | 'getChildContext';\n function describeFiber(fiber: Fiber): string {\n switch (fiber.tag) {\n case IndeterminateComponent:\n- case FunctionalComponent:\n- case FunctionalComponentLazy:\n+ case FunctionComponent:\n+ case FunctionComponentLazy:\n case ClassComponent:\n case ClassComponentLazy:\n case HostComponent:\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiber.js b\/packages\/react-reconciler\/src\/ReactFiber.js\nindex 6038faad3a..470ecd1dd3 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiber.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiber.js\n@@ -34,7 +34,7 @@ import {\n ContextConsumer,\n Profiler,\n PlaceholderComponent,\n- FunctionalComponentLazy,\n+ FunctionComponentLazy,\n ClassComponentLazy,\n ForwardRefLazy,\n PureComponent,\n@@ -302,7 +302,7 @@ export function resolveLazyComponentTag(\n if (typeof Component === 'function') {\n return shouldConstruct(Component)\n ? ClassComponentLazy\n- : FunctionalComponentLazy;\n+ : FunctionComponentLazy;\n } else if (Component !== undefined && Component !== null) {\n const $$typeof = Component.$$typeof;\n if ($$typeof === REACT_FORWARD_REF_TYPE) {\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberBeginWork.js b\/packages\/react-reconciler\/src\/ReactFiberBeginWork.js\nindex 0a6ae9df7b..d9ee1389a7 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberBeginWork.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberBeginWork.js\n@@ -15,8 +15,8 @@ import checkPropTypes from 'prop-types\/checkPropTypes';\n \n import {\n IndeterminateComponent,\n- FunctionalComponent,\n- FunctionalComponentLazy,\n+ FunctionComponent,\n+ FunctionComponentLazy,\n ClassComponent,\n ClassComponentLazy,\n HostRoot,\n@@ -111,15 +111,15 @@ import {resolveLazyComponentTag} from '.\/ReactFiber';\n const ReactCurrentOwner = ReactSharedInternals.ReactCurrentOwner;\n \n let didWarnAboutBadClass;\n-let didWarnAboutContextTypeOnFunctionalComponent;\n-let didWarnAboutGetDerivedStateOnFunctionalComponent;\n-let didWarnAboutStatelessRefs;\n+let didWarnAboutContextTypeOnFunctionComponent;\n+let didWarnAboutGetDerivedStateOnFunctionComponent;\n+let didWarnAboutFunctionRefs;\n \n if (__DEV__) {\n didWarnAboutBadClass = {};\n- didWarnAboutContextTypeOnFunctionalComponent = {};\n- didWarnAboutGetDerivedStateOnFunctionalComponent = {};\n- didWarnAboutStatelessRefs = {};\n+ didWarnAboutContextTypeOnFunctionComponent = {};\n+ didWarnAboutGetDerivedStateOnFunctionComponent = {};\n+ didWarnAboutFunctionRefs = {};\n }\n \n export function reconcileChildren(\n@@ -258,7 +258,7 @@ function updatePureComponent(\n }\n }\n \n- \/\/ The rest is a fork of updateFunctionalComponent\n+ \/\/ The rest is a fork of updateFunctionComponent\n let nextChildren;\n prepareToReadContext(workInProgress, renderExpirationTime);\n if (__DEV__) {\n@@ -345,7 +345,7 @@ function markRef(current: Fiber | null, workInProgress: Fiber) {\n }\n }\n \n-function updateFunctionalComponent(\n+function updateFunctionComponent(\n current,\n workInProgress,\n Component,\n@@ -730,8 +730,8 @@ function mountIndeterminateComponent(\n const resolvedProps = resolveDefaultProps(Component, props);\n let child;\n switch (resolvedTag) {\n- case FunctionalComponentLazy: {\n- child = updateFunctionalComponent(\n+ case FunctionComponentLazy: {\n+ child = updateFunctionComponent(\n current,\n workInProgress,\n Component,\n@@ -869,13 +869,13 @@ function mountIndeterminateComponent(\n renderExpirationTime,\n );\n } else {\n- \/\/ Proceed under the assumption that this is a functional component\n- workInProgress.tag = FunctionalComponent;\n+ \/\/ Proceed under the assumption that this is a function component\n+ workInProgress.tag = FunctionComponent;\n if (__DEV__) {\n if (Component) {\n warningWithoutStack(\n !Component.childContextTypes,\n- '%s(...): childContextTypes cannot be defined on a functional component.',\n+ '%s(...): childContextTypes cannot be defined on a function component.',\n Component.displayName || Component.name || 'Component',\n );\n }\n@@ -891,11 +891,11 @@ function mountIndeterminateComponent(\n if (debugSource) {\n warningKey = debugSource.fileName + ':' + debugSource.lineNumber;\n }\n- if (!didWarnAboutStatelessRefs[warningKey]) {\n- didWarnAboutStatelessRefs[warningKey] = true;\n+ if (!didWarnAboutFunctionRefs[warningKey]) {\n+ didWarnAboutFunctionRefs[warningKey] = true;\n warning(\n false,\n- 'Stateless function components cannot be given refs. ' +\n+ 'Function components cannot be given refs. ' +\n 'Attempts to access this ref will fail.%s',\n info,\n );\n@@ -905,15 +905,13 @@ function mountIndeterminateComponent(\n if (typeof Component.getDerivedStateFromProps === 'function') {\n const componentName = getComponentName(Component) || 'Unknown';\n \n- if (!didWarnAboutGetDerivedStateOnFunctionalComponent[componentName]) {\n+ if (!didWarnAboutGetDerivedStateOnFunctionComponent[componentName]) {\n warningWithoutStack(\n false,\n- '%s: Stateless functional components do not support getDerivedStateFromProps.',\n+ '%s: Function components do not support getDerivedStateFromProps.',\n componentName,\n );\n- didWarnAboutGetDerivedStateOnFunctionalComponent[\n- componentName\n- ] = true;\n+ didWarnAboutGetDerivedStateOnFunctionComponent[componentName] = true;\n }\n }\n \n@@ -923,13 +921,13 @@ function mountIndeterminateComponent(\n ) {\n const componentName = getComponentName(Component) || 'Unknown';\n \n- if (!didWarnAboutContextTypeOnFunctionalComponent[componentName]) {\n+ if (!didWarnAboutContextTypeOnFunctionComponent[componentName]) {\n warningWithoutStack(\n false,\n- '%s: Stateless functional components do not support contextType.',\n+ '%s: Function components do not support contextType.',\n componentName,\n );\n- didWarnAboutContextTypeOnFunctionalComponent[componentName] = true;\n+ didWarnAboutContextTypeOnFunctionComponent[componentName] = true;\n }\n }\n }\n@@ -1297,10 +1295,10 @@ function beginWork(\n renderExpirationTime,\n );\n }\n- case FunctionalComponent: {\n+ case FunctionComponent: {\n const Component = workInProgress.type;\n const unresolvedProps = workInProgress.pendingProps;\n- return updateFunctionalComponent(\n+ return updateFunctionComponent(\n current,\n workInProgress,\n Component,\n@@ -1308,11 +1306,11 @@ function beginWork(\n renderExpirationTime,\n );\n }\n- case FunctionalComponentLazy: {\n+ case FunctionComponentLazy: {\n const thenable = workInProgress.type;\n const Component = getResultFromResolvedThenable(thenable);\n const unresolvedProps = workInProgress.pendingProps;\n- const child = updateFunctionalComponent(\n+ const child = updateFunctionComponent(\n current,\n workInProgress,\n Component,\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberCompleteWork.js b\/packages\/react-reconciler\/src\/ReactFiberCompleteWork.js\nindex 4be43bf096..8eac486386 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberCompleteWork.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberCompleteWork.js\n@@ -20,8 +20,8 @@ import type {\n \n import {\n IndeterminateComponent,\n- FunctionalComponent,\n- FunctionalComponentLazy,\n+ FunctionComponent,\n+ FunctionComponentLazy,\n ClassComponent,\n ClassComponentLazy,\n HostRoot,\n@@ -353,8 +353,8 @@ function completeWork(\n const newProps = workInProgress.pendingProps;\n \n switch (workInProgress.tag) {\n- case FunctionalComponent:\n- case FunctionalComponentLazy:\n+ case FunctionComponent:\n+ case FunctionComponentLazy:\n break;\n case ClassComponent: {\n const Component = workInProgress.type;\ndiff --git a\/packages\/react-reconciler\/src\/ReactFiberUnwindWork.js b\/packages\/react-reconciler\/src\/ReactFiberUnwindWork.js\nindex bba16ed0b6..b702139d70 100644\n--- a\/packages\/react-reconciler\/src\/ReactFiberUnwindWork.js\n+++ b\/packages\/react-reconciler\/src\/ReactFiberUnwindWork.js\n@@ -18,7 +18,7 @@ import getComponentName from 'shared\/getComponentName';\n import warningWithoutStack from 'shared\/warningWithoutStack';\n import {\n IndeterminateComponent,\n- FunctionalComponent,\n+ FunctionComponent,\n ClassComponent,\n ClassComponentLazy,\n HostRoot,\n@@ -260,9 +260,9 @@ function throwException(\n );\n sourceFiber.effectTag &= ~Incomplete;\n if (sourceFiber.tag === IndeterminateComponent) {\n- \/\/ Let's just assume it's a functional component. This fiber will\n+ \/\/ Let's just assume it's a function component. This fiber will\n \/\/ be unmounted in the immediate next commit, anyway.\n- sourceFiber.tag = FunctionalComponent;\n+ sourceFiber.tag = FunctionComponent;\n }\n \n if (\n@@ -275,11 +275,11 @@ function throwException(\n sourceFiber.effectTag &= ~LifecycleEffectMask;\n if (sourceFiber.alternate === null) {\n \/\/ We're about to mount a class component that doesn't have an\n- \/\/ instance. Turn this into a dummy functional component instead,\n+ \/\/ instance. Turn this into a dummy function component instead,\n \/\/ to prevent type errors. This is a bit weird but it's an edge\n \/\/ case and we're about to synchronously delete this\n \/\/ component, anyway.\n- sourceFiber.tag = FunctionalComponent;\n+ sourceFiber.tag = FunctionComponent;\n sourceFiber.type = NoopComponent;\n }\n }\ndiff --git a\/packages\/react-reconciler\/src\/__tests__\/ReactIncrementalSideEffects-test.internal.js b\/packages\/react-reconciler\/src\/__tests__\/ReactIncrementalSideEffects-test.internal.js\nindex 380571ad70..086b3f8f2a 100644\n--- a\/packages\/react-reconciler\/src\/__tests__\/ReactIncrementalSideEffects-test.internal.js\n+++ b\/packages\/react-reconciler\/src\/__tests__\/ReactIncrementalSideEffects-test.internal.js\n@@ -158,7 +158,7 @@ describe('ReactIncrementalSideEffects', () => {\n }\n }\n \n- function FunctionalComponent(props) {\n+ function FunctionComponent(props) {\n return ;\n }\n \n@@ -168,7 +168,7 @@ describe('ReactIncrementalSideEffects', () => {\n {props.useClass ? (\n \n ) : props.useFunction ? (\n- \n+ \n ) : props.useText ? (\n 'Text'\n ) : null}\n@@ -210,7 +210,7 @@ describe('ReactIncrementalSideEffects', () => {\n }\n }\n \n- function FunctionalComponent(props) {\n+ function FunctionComponent(props) {\n return ;\n }\n \n@@ -220,7 +220,7 @@ describe('ReactIncrementalSideEffects', () => {\n {props.useClass ? (\n \n ) : props.useFunction ? (\n- \n+ \n ) : null}\n Trail\n <\/div>\n@@ -1126,7 +1126,7 @@ describe('ReactIncrementalSideEffects', () => {\n }\n }\n \n- function FunctionalComponent(props) {\n+ function FunctionComponent(props) {\n return ;\n }\n \n@@ -1134,7 +1134,7 @@ describe('ReactIncrementalSideEffects', () => {\n return props.show ? (\n

\n ops.push(n)} \/>\n- ops.push(n)} \/>\n+ ops.push(n)} \/>\n

ops.push(n)} \/>\n <\/div>\n ) : null;\n@@ -1142,16 +1142,16 @@ describe('ReactIncrementalSideEffects', () => {\n \n ReactNoop.render();\n expect(ReactNoop.flush).toWarnDev(\n- 'Warning: Stateless function components cannot be given refs. ' +\n+ 'Warning: Function components cannot be given refs. ' +\n 'Attempts to access this ref will fail.\\n\\nCheck the render method ' +\n 'of `Foo`.\\n' +\n- ' in FunctionalComponent (at **)\\n' +\n+ ' in FunctionComponent (at **)\\n' +\n ' in div (at **)\\n' +\n ' in Foo (at **)',\n );\n expect(ops).toEqual([\n classInstance,\n- \/\/ no call for functional components\n+ \/\/ no call for function components\n div(),\n ]);\n \ndiff --git a\/packages\/react-reconciler\/src\/__tests__\/ReactNewContext-test.internal.js b\/packages\/react-reconciler\/src\/__tests__\/ReactNewContext-test.internal.js\nindex 299b6ab108..9570a25e45 100644\n--- a\/packages\/react-reconciler\/src\/__tests__\/ReactNewContext-test.internal.js\n+++ b\/packages\/react-reconciler\/src\/__tests__\/ReactNewContext-test.internal.js\n@@ -43,7 +43,7 @@ describe('ReactNewContext', () => {\n \/\/ a suite of tests for a given context consumer implementation.\n sharedContextTests('Context.Consumer', Context => Context.Consumer);\n sharedContextTests(\n- 'Context.unstable_read inside functional component',\n+ 'Context.unstable_read inside function component',\n Context =>\n function Consumer(props) {\n const observedBits = props.unstable_observedBits;\ndiff --git a\/packages\/react-reconciler\/src\/__tests__\/ReactPure-test.internal.js b\/packages\/react-reconciler\/src\/__tests__\/ReactPure-test.internal.js\nindex 2813e33f9d..1d0ffb2c20 100644\n--- a\/packages\/react-reconciler\/src\/__tests__\/ReactPure-test.internal.js\n+++ b\/packages\/react-reconciler\/src\/__tests__\/ReactPure-test.internal.js\n@@ -178,14 +178,14 @@ describe('pure', () => {\n }\n }\n expect(() => pure(SomeClass)).toWarnDev(\n- 'pure: The first argument must be a functional component.',\n+ 'pure: The first argument must be a function component.',\n {withoutStack: true},\n );\n });\n \n it('warns if first argument is not a function', () => {\n expect(() => pure()).toWarnDev(\n- 'pure: The first argument must be a functional component. Instead ' +\n+ 'pure: The first argument must be a function component. Instead ' +\n 'received: undefined',\n {withoutStack: true},\n );\ndiff --git a\/packages\/react-test-renderer\/src\/ReactTestRenderer.js b\/packages\/react-test-renderer\/src\/ReactTestRenderer.js\nindex 69782f10c5..630fa86892 100644\n--- a\/packages\/react-test-renderer\/src\/ReactTestRenderer.js\n+++ b\/packages\/react-test-renderer\/src\/ReactTestRenderer.js\n@@ -16,8 +16,8 @@ import {batchedUpdates} from 'events\/ReactGenericBatching';\n import {findCurrentFiberUsingSlowPath} from 'react-reconciler\/reflection';\n import {\n Fragment,\n- FunctionalComponent,\n- FunctionalComponentLazy,\n+ FunctionComponent,\n+ FunctionComponentLazy,\n ClassComponent,\n ClassComponentLazy,\n HostComponent,\n@@ -164,7 +164,7 @@ function toTree(node: ?Fiber) {\n rendered: childrenToTree(node.child),\n };\n }\n- case FunctionalComponent:\n+ case FunctionComponent:\n return {\n nodeType: 'component',\n type: node.type,\n@@ -172,7 +172,7 @@ function toTree(node: ?Fiber) {\n instance: null,\n rendered: childrenToTree(node.child),\n };\n- case FunctionalComponentLazy: {\n+ case FunctionComponentLazy: {\n const thenable = node.type;\n const type = thenable._reactResult;\n return {\n@@ -214,8 +214,8 @@ function toTree(node: ?Fiber) {\n }\n \n const validWrapperTypes = new Set([\n- FunctionalComponent,\n- FunctionalComponentLazy,\n+ FunctionComponent,\n+ FunctionComponentLazy,\n ClassComponent,\n ClassComponentLazy,\n HostComponent,\ndiff --git a\/packages\/react-test-renderer\/src\/__tests__\/ReactShallowRenderer-test.js b\/packages\/react-test-renderer\/src\/__tests__\/ReactShallowRenderer-test.js\nindex ac81a18318..b6c4259af9 100644\n--- a\/packages\/react-test-renderer\/src\/__tests__\/ReactShallowRenderer-test.js\n+++ b\/packages\/react-test-renderer\/src\/__tests__\/ReactShallowRenderer-test.js\n@@ -359,7 +359,7 @@ describe('ReactShallowRenderer', () => {\n expect(renderCounter).toEqual(2);\n });\n \n- it('should shallow render a functional component', () => {\n+ it('should shallow render a function component', () => {\n function SomeComponent(props, context) {\n return (\n

\n@@ -1408,7 +1408,7 @@ describe('ReactShallowRenderer', () => {\n expect(log).toEqual(['render']);\n });\n \n- it('should not get this in a functional component', () => {\n+ it('should not get this in a function component', () => {\n const logs = [];\n function Foo() {\n logs.push(this);\ndiff --git a\/packages\/react-test-renderer\/src\/__tests__\/ReactTestRenderer-test.internal.js b\/packages\/react-test-renderer\/src\/__tests__\/ReactTestRenderer-test.internal.js\nindex b0624e3746..17fc7f1c50 100644\n--- a\/packages\/react-test-renderer\/src\/__tests__\/ReactTestRenderer-test.internal.js\n+++ b\/packages\/react-test-renderer\/src\/__tests__\/ReactTestRenderer-test.internal.js\n@@ -281,7 +281,7 @@ describe('ReactTestRenderer', () => {\n }\n ReactTestRenderer.create();\n expect(() => ReactTestRenderer.create()).toWarnDev(\n- 'Warning: Stateless function components cannot be given refs. Attempts ' +\n+ 'Warning: Function components cannot be given refs. Attempts ' +\n 'to access this ref will fail.\\n\\nCheck the render method of `Foo`.\\n' +\n ' in Bar (at **)\\n' +\n ' in Foo (at **)',\ndiff --git a\/packages\/react\/src\/ReactElementValidator.js b\/packages\/react\/src\/ReactElementValidator.js\nindex c38897ac13..2fb25e55ec 100644\n--- a\/packages\/react\/src\/ReactElementValidator.js\n+++ b\/packages\/react\/src\/ReactElementValidator.js\n@@ -187,7 +187,7 @@ function validatePropTypes(element) {\n const type = element.type;\n let name, propTypes;\n if (typeof type === 'function') {\n- \/\/ Class or functional component\n+ \/\/ Class or function component\n name = type.displayName || type.name;\n propTypes = type.propTypes;\n } else if (\ndiff --git a\/packages\/react\/src\/__tests__\/ReactContextValidator-test.js b\/packages\/react\/src\/__tests__\/ReactContextValidator-test.js\nindex 1a518e658d..4ce63cc3d5 100644\n--- a\/packages\/react\/src\/__tests__\/ReactContextValidator-test.js\n+++ b\/packages\/react\/src\/__tests__\/ReactContextValidator-test.js\n@@ -577,7 +577,7 @@ describe('ReactContextValidator', () => {\n );\n });\n \n- it('should warn if you define contextType on a functional component', () => {\n+ it('should warn if you define contextType on a function component', () => {\n const Context = React.createContext();\n \n function ComponentA() {\n@@ -591,7 +591,7 @@ describe('ReactContextValidator', () => {\n ComponentB.contextType = Context;\n \n expect(() => ReactTestUtils.renderIntoDocument()).toWarnDev(\n- 'Warning: ComponentA: Stateless functional components do not support contextType.',\n+ 'Warning: ComponentA: Function components do not support contextType.',\n {withoutStack: true},\n );\n \n@@ -599,7 +599,7 @@ describe('ReactContextValidator', () => {\n ReactTestUtils.renderIntoDocument();\n \n expect(() => ReactTestUtils.renderIntoDocument()).toWarnDev(\n- 'Warning: ComponentB: Stateless functional components do not support contextType.',\n+ 'Warning: ComponentB: Function components do not support contextType.',\n {withoutStack: true},\n );\n });\ndiff --git a\/packages\/react\/src\/__tests__\/ReactProfiler-test.internal.js b\/packages\/react\/src\/__tests__\/ReactProfiler-test.internal.js\nindex d0e40fde7c..fac91f9414 100644\n--- a\/packages\/react\/src\/__tests__\/ReactProfiler-test.internal.js\n+++ b\/packages\/react\/src\/__tests__\/ReactProfiler-test.internal.js\n@@ -130,13 +130,13 @@ describe('Profiler', () => {\n });\n \n it('should render children', () => {\n- const FunctionalComponent = ({label}) => {label}<\/span>;\n+ const FunctionComponent = ({label}) => {label}<\/span>;\n const renderer = ReactTestRenderer.create(\n

\n outside span<\/span>\n \n inside span<\/span>\n- \n+ \n <\/React.unstable_Profiler>\n <\/div>,\n );\n@@ -144,7 +144,7 @@ describe('Profiler', () => {\n });\n \n it('should support nested Profilers', () => {\n- const FunctionalComponent = ({label}) =>

{label}<\/div>;\n+ const FunctionComponent = ({label}) =>

{label}<\/div>;\n class ClassComponent extends React.Component {\n render() {\n return {this.props.label}<\/block>;\n@@ -152,7 +152,7 @@ describe('Profiler', () => {\n }\n const renderer = ReactTestRenderer.create(\n \n- \n+ \n \n \n inner span<\/span>\ndiff --git a\/packages\/react\/src\/__tests__\/__snapshots__\/ReactProfiler-test.internal.js.snap b\/packages\/react\/src\/__tests__\/__snapshots__\/ReactProfiler-test.internal.js.snap\nindex 02ebda64dd..91d0b594dc 100644\n--- a\/packages\/react\/src\/__tests__\/__snapshots__\/ReactProfiler-test.internal.js.snap\n+++ b\/packages\/react\/src\/__tests__\/__snapshots__\/ReactProfiler-test.internal.js.snap\n@@ -9,7 +9,7 @@ exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTr\n inside span\n <\/span>\n \n- functional component\n+ function component\n <\/span>\n <\/div>\n `;\n@@ -21,7 +21,7 @@ exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTr\n exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTracing:disabled enableProfilerTimer:disabled should support nested Profilers 1`] = `\n Array [\n

\n- outer functional component\n+ outer function component\n <\/div>,\n \n inner class component\n@@ -41,7 +41,7 @@ exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTr\n inside span\n <\/span>\n \n- functional component\n+ function component\n <\/span>\n <\/div>\n `;\n@@ -53,7 +53,7 @@ exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTr\n exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTracing:disabled enableProfilerTimer:enabled should support nested Profilers 1`] = `\n Array [\n

\n- outer functional component\n+ outer function component\n <\/div>,\n \n inner class component\n@@ -73,7 +73,7 @@ exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTr\n inside span\n <\/span>\n \n- functional component\n+ function component\n <\/span>\n <\/div>\n `;\n@@ -85,7 +85,7 @@ exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTr\n exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTracing:enabled enableProfilerTimer:disabled should support nested Profilers 1`] = `\n Array [\n

\n- outer functional component\n+ outer function component\n <\/div>,\n \n inner class component\n@@ -105,7 +105,7 @@ exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTr\n inside span\n <\/span>\n \n- functional component\n+ function component\n <\/span>\n <\/div>\n `;\n@@ -117,7 +117,7 @@ exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTr\n exports[`Profiler works in profiling and non-profiling bundles enableSchedulerTracing:enabled enableProfilerTimer:enabled should support nested Profilers 1`] = `\n Array [\n

\n- outer functional component\n+ outer function component\n <\/div>,\n \n inner class component\ndiff --git a\/packages\/react\/src\/__tests__\/forwardRef-test.js b\/packages\/react\/src\/__tests__\/forwardRef-test.js\nindex 08977347b6..808bfe32c4 100644\n--- a\/packages\/react\/src\/__tests__\/forwardRef-test.js\n+++ b\/packages\/react\/src\/__tests__\/forwardRef-test.js\n@@ -22,7 +22,7 @@ describe('forwardRef', () => {\n });\n \n it('should update refs when switching between children', () => {\n- function FunctionalComponent({forwardedRef, setRefOnDiv}) {\n+ function FunctionComponent({forwardedRef, setRefOnDiv}) {\n return (\n

First<\/div>\n@@ -32,7 +32,7 @@ describe('forwardRef', () => {\n }\n \n const RefForwardingComponent = React.forwardRef((props, ref) => (\n- \n+ \n ));\n \n const ref = React.createRef();\n@@ -73,7 +73,7 @@ describe('forwardRef', () => {\n });\n \n it('should support propTypes and defaultProps', () => {\n- function FunctionalComponent({forwardedRef, optional, required}) {\n+ function FunctionComponent({forwardedRef, optional, required}) {\n return (\n

\n {optional}\n@@ -86,7 +86,7 @@ describe('forwardRef', () => {\n props,\n ref,\n ) {\n- return ;\n+ return ;\n });\n RefForwardingComponent.propTypes = {\n optional: PropTypes.string,\ndiff --git a\/packages\/react\/src\/pure.js b\/packages\/react\/src\/pure.js\nindex 1d2aa6952c..0431c05269 100644\n--- a\/packages\/react\/src\/pure.js\n+++ b\/packages\/react\/src\/pure.js\n@@ -17,7 +17,7 @@ export default function pure(\n if (typeof render !== 'function') {\n warningWithoutStack(\n false,\n- 'pure: The first argument must be a functional component. Instead ' +\n+ 'pure: The first argument must be a function component. Instead ' +\n 'received: %s',\n render === null ? 'null' : typeof render,\n );\n@@ -26,7 +26,7 @@ export default function pure(\n if (prototype && prototype.isReactComponent) {\n warningWithoutStack(\n false,\n- 'pure: The first argument must be a functional component. Classes ' +\n+ 'pure: The first argument must be a function component. Classes ' +\n 'are not supported. Use React.PureComponent instead.',\n );\n }\ndiff --git a\/packages\/shared\/ReactWorkTags.js b\/packages\/shared\/ReactWorkTags.js\nindex 78c22567c9..b04f89e562 100644\n--- a\/packages\/shared\/ReactWorkTags.js\n+++ b\/packages\/shared\/ReactWorkTags.js\n@@ -28,11 +28,11 @@ export type WorkTag =\n | 17\n | 18;\n \n-export const FunctionalComponent = 0;\n-export const FunctionalComponentLazy = 1;\n+export const FunctionComponent = 0;\n+export const FunctionComponentLazy = 1;\n export const ClassComponent = 2;\n export const ClassComponentLazy = 3;\n-export const IndeterminateComponent = 4; \/\/ Before we know whether it is functional or class\n+export const IndeterminateComponent = 4; \/\/ Before we know whether it is function or class\n export const HostRoot = 5; \/\/ Root of a host tree. Could be nested inside another node.\n export const HostPortal = 6; \/\/ A subtree. Could be an entry point to a different renderer.\n export const HostComponent = 7;\n","commit":{"revision":"40a521aa7247872d0080d5a581120b64998152da","authorName":"Dan Abramov","authorEmail":"dan.abramov@gmail.com","authoredAt":"2018-10-04T22:44:46+01:00","subject":"Terminology: Functional -> Function Component (#13775)","shortRevision":"40a521aa72"}}

dillon1000/react

Files changed