1 | var _curry2 =
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2 | /*#__PURE__*/
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3 | require("./internal/_curry2");
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4 |
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5 | var _isFunction =
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6 | /*#__PURE__*/
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7 | require("./internal/_isFunction");
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8 |
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9 | var curryN =
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10 | /*#__PURE__*/
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11 | require("./curryN");
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12 |
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13 | var toString =
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14 | /*#__PURE__*/
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15 | require("./toString");
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16 | /**
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17 | * Turns a named method with a specified arity into a function that can be
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18 | * called directly supplied with arguments and a target object.
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19 | *
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20 | * The returned function is curried and accepts `arity + 1` parameters where
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21 | * the final parameter is the target object.
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22 | *
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23 | * @func
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24 | * @memberOf R
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25 | * @since v0.1.0
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26 | * @category Function
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27 | * @sig Number -> String -> (a -> b -> ... -> n -> Object -> *)
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28 | * @param {Number} arity Number of arguments the returned function should take
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29 | * before the target object.
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30 | * @param {String} method Name of any of the target object's methods to call.
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31 | * @return {Function} A new curried function.
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32 | * @see R.construct
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33 | * @example
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34 | *
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35 | * const sliceFrom = R.invoker(1, 'slice');
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36 | * sliceFrom(6, 'abcdefghijklm'); //=> 'ghijklm'
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37 | * const sliceFrom6 = R.invoker(2, 'slice')(6);
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38 | * sliceFrom6(8, 'abcdefghijklm'); //=> 'gh'
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39 | *
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40 | * const dog = {
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41 | * speak: async () => 'Woof!'
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42 | * };
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43 | * const speak = R.invoker(0, 'speak');
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44 | * speak(dog).then(console.log) //~> 'Woof!'
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45 | *
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46 | * @symb R.invoker(0, 'method')(o) = o['method']()
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47 | * @symb R.invoker(1, 'method')(a, o) = o['method'](a)
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48 | * @symb R.invoker(2, 'method')(a, b, o) = o['method'](a, b)
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49 | */
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50 |
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51 |
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52 | var invoker =
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53 | /*#__PURE__*/
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54 | _curry2(function invoker(arity, method) {
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55 | return curryN(arity + 1, function () {
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56 | var target = arguments[arity];
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57 |
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58 | if (target != null && _isFunction(target[method])) {
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59 | return target[method].apply(target, Array.prototype.slice.call(arguments, 0, arity));
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60 | }
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61 |
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62 | throw new TypeError(toString(target) + ' does not have a method named "' + method + '"');
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63 | });
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64 | });
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65 |
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66 | module.exports = invoker; |
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