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Diffstat (limited to 'node_modules/fbjs/lib/emptyFunction.js.flow')
-rw-r--r-- | node_modules/fbjs/lib/emptyFunction.js.flow | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/node_modules/fbjs/lib/emptyFunction.js.flow b/node_modules/fbjs/lib/emptyFunction.js.flow deleted file mode 100644 index 4136b0ece..000000000 --- a/node_modules/fbjs/lib/emptyFunction.js.flow +++ /dev/null @@ -1,35 +0,0 @@ -/** - * Copyright (c) 2013-present, Facebook, Inc. - * - * This source code is licensed under the MIT license found in the - * LICENSE file in the root directory of this source tree. - * - * @providesModule emptyFunction - * @flow - */ - -function makeEmptyFunction<T>(arg: T): (...args: Array<any>) => T { - return function () { - return arg; - }; -} - -/** - * This function accepts and discards inputs; it has no side effects. This is - * primarily useful idiomatically for overridable function endpoints which - * always need to be callable, since JS lacks a null-call idiom ala Cocoa. - */ -const emptyFunction: (...args: Array<any>) => void = function () {}; - -emptyFunction.thatReturns = makeEmptyFunction; -emptyFunction.thatReturnsFalse = makeEmptyFunction(false); -emptyFunction.thatReturnsTrue = makeEmptyFunction(true); -emptyFunction.thatReturnsNull = makeEmptyFunction(null); -emptyFunction.thatReturnsThis = function () { - return this; -}; -emptyFunction.thatReturnsArgument = function (arg) { - return arg; -}; - -module.exports = emptyFunction;
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