1 | /* Built-in method references for those with the same name as other `lodash` methods. */
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2 | var nativeMax = Math.max;
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3 |
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4 | /**
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5 | * Creates an array that is the composition of partially applied arguments,
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6 | * placeholders, and provided arguments into a single array of arguments.
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7 | *
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8 | * @private
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9 | * @param {Array} args The provided arguments.
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10 | * @param {Array} partials The arguments to prepend to those provided.
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11 | * @param {Array} holders The `partials` placeholder indexes.
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12 | * @params {boolean} [isCurried] Specify composing for a curried function.
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13 | * @returns {Array} Returns the new array of composed arguments.
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14 | */
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15 | function composeArgs(args, partials, holders, isCurried) {
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16 | var argsIndex = -1,
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17 | argsLength = args.length,
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18 | holdersLength = holders.length,
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19 | leftIndex = -1,
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20 | leftLength = partials.length,
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21 | rangeLength = nativeMax(argsLength - holdersLength, 0),
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22 | result = Array(leftLength + rangeLength),
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23 | isUncurried = !isCurried;
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24 |
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25 | while (++leftIndex < leftLength) {
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26 | result[leftIndex] = partials[leftIndex];
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27 | }
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28 | while (++argsIndex < holdersLength) {
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29 | if (isUncurried || argsIndex < argsLength) {
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30 | result[holders[argsIndex]] = args[argsIndex];
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31 | }
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32 | }
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33 | while (rangeLength--) {
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34 | result[leftIndex++] = args[argsIndex++];
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35 | }
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36 | return result;
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37 | }
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38 |
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39 | module.exports = composeArgs;
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