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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / onetime / index.js

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/onetime/index.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/onetime/index.js
new file mode 100644 (file)
index 0000000..a3f412a
--- /dev/null
+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/onetime/index.js
@@ -0,0 +1,50 @@
+'use strict';
+const mimicFn = require('mimic-fn');
+
+const calledFunctions = new WeakMap();
+
+const oneTime = (fn, options = {}) => {
+       if (typeof fn !== 'function') {
+               throw new TypeError('Expected a function');
+       }
+
+       let ret;
+       let isCalled = false;
+       let callCount = 0;
+       const functionName = fn.displayName || fn.name || '<anonymous>';
+
+       const onetime = function (...args) {
+               calledFunctions.set(onetime, ++callCount);
+
+               if (isCalled) {
+                       if (options.throw === true) {
+                               throw new Error(`Function \`${functionName}\` can only be called once`);
+                       }
+
+                       return ret;
+               }
+
+               isCalled = true;
+               ret = fn.apply(this, args);
+               fn = null;
+
+               return ret;
+       };
+
+       mimicFn(onetime, fn);
+       calledFunctions.set(onetime, callCount);
+
+       return onetime;
+};
+
+module.exports = oneTime;
+// TODO: Remove this for the next major release
+module.exports.default = oneTime;
+
+module.exports.callCount = fn => {
+       if (!calledFunctions.has(fn)) {
+               throw new Error(`The given function \`${fn.name}\` is not wrapped by the \`onetime\` package`);
+       }
+
+       return calledFunctions.get(fn);
+};