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69 lines
1.9 KiB
69 lines
1.9 KiB
2 years ago
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var startWith = require('./startWith');
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var last = require('./last');
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var lowerCase = require('./lowerCase');
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var isObj = require('./isObj');
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var type = require('./type');
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exports = function(types, args) {
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var argsLen = args.length;
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var typesLen = types.length;
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var minLen = typesLen;
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var maxLen = typesLen;
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for (var i = 0; i < typesLen; i++) {
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var _type = types[i].split('|');
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if (startWith(_type[0], '?')) {
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_type[0] = _type[0].slice(1);
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if (minLen === typesLen) {
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minLen = i;
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}
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}
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if (i === typesLen - 1 && startWith(_type[0], '...')) {
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maxLen = Infinity;
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_type[0] = _type[0].slice(3);
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if (minLen === typesLen) {
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minLen = i;
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}
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}
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types[i] = _type;
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}
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if (argsLen < minLen) {
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throw Error(
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'Expected at least '
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.concat(minLen, ' args but got ')
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.concat(argsLen)
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);
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} else if (argsLen > maxLen) {
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throw Error(
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'Expected at most '.concat(maxLen, ' args but got ').concat(argsLen)
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);
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}
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for (var _i = 0; _i < argsLen; _i++) {
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var arg = args[_i];
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if (_i >= typesLen) {
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validateArg(arg, last(types), _i);
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} else {
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validateArg(arg, types[_i], _i);
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}
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}
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};
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function validateArg(value, types, num) {
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var isValid = false;
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for (var i = 0, len = types.length; i < len; i++) {
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var t = lowerCase(types[i]);
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if (
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t === 'any' ||
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(t === 'object' && isObj(value)) ||
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type(value) === t
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) {
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isValid = true;
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break;
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}
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}
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if (!isValid) {
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throw TypeError(
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'Argument '.concat(num, ' should be type ').concat(types.join('|'))
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);
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}
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}
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module.exports = exports;
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