blob: 67fe087c4ac7ba7d81ea74ef2761414e08efcb7f [file] [log] [blame]
var baseMatches = require('./baseMatches'),
baseMatchesProperty = require('./baseMatchesProperty'),
bindCallback = require('./bindCallback'),
identity = require('../utility/identity'),
property = require('../utility/property');
/**
* The base implementation of `_.callback` which supports specifying the
* number of arguments to provide to `func`.
*
* @private
* @param {*} [func=_.identity] The value to convert to a callback.
* @param {*} [thisArg] The `this` binding of `func`.
* @param {number} [argCount] The number of arguments to provide to `func`.
* @returns {Function} Returns the callback.
*/
function baseCallback(func, thisArg, argCount) {
var type = typeof func;
if (type == 'function') {
return thisArg === undefined
? func
: bindCallback(func, thisArg, argCount);
}
if (func == null) {
return identity;
}
if (type == 'object') {
return baseMatches(func);
}
return thisArg === undefined
? property(func)
: baseMatchesProperty(func, thisArg);
}
module.exports = baseCallback;