/**
* @file invariant
* @author Leon(leon@outlook.com)
*/
/**
* Use invariant() to assert state which your program assumes to be true.
*
* Provide sprintf-style format (only %s is supported) and arguments
* to provide information about what broke and what you were
* expecting.
*
* The invariant message will be stripped in production, but the invariant
* will remain to ensure logic does not differ in production.
*/
/* eslint-disable max-params */
/**
* 断言
*
* @ignore
*
* @param {boolean} condition 断言条件
* @param {string} format 断言失败消息模板
* @param {*} a 断言失败消息数据
* @param {*} b 断言失败消息数据
* @param {*} c 断言失败消息数据
* @param {*} d 断言失败消息数据
* @param {*} e 断言失败消息数据
* @param {*} f 断言失败消息数据
*/
var invariant = function (condition, format, a, b, c, d, e, f) {
if (condition) {
return;
}
if (!format) {
throw new Error(''
+ 'Minified exception occurred; use the non-minified dev environment '
+ 'for the full error message and additional helpful warnings.'
);
}
var args = [a, b, c, d, e, f];
var argIndex = 0;
var message = ''
+ 'Invariant Violation: '
+ format.replace(/%s/g, function () {
return args[argIndex++];
});
throw new Error(message);
};
/* eslint-enable max-params */
module.exports = invariant;