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'use strict';
var format = require('util').format;
var ERR_CODE = 'ARGError';
/*:nodoc:*
* argumentError(argument, message) -> TypeError
* - argument (Object): action with broken argument
* - message (String): error message
*
* Error format helper. An error from creating or using an argument
* (optional or positional). The string value of this exception
* is the message, augmented with information
* about the argument that caused it.
*
* #####Example
*
* var argumentErrorHelper = require('./argument/error');
* if (conflictOptionals.length > 0) {
* throw argumentErrorHelper(
* action,
* format('Conflicting option string(s): %s', conflictOptionals.join(', '))
* );
* }
*
**/
module.exports = function (argument, message) {
var argumentName = null;
var errMessage;
var err;
if (argument.getName) {
argumentName = argument.getName();
} else {
argumentName = '' + argument;
}
if (!argumentName) {
errMessage = message;
} else {
errMessage = format('argument "%s": %s', argumentName, message);
}
err = new TypeError(errMessage);
err.code = ERR_CODE;
return err;
};
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