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Add TimedCrowdsale::_extendTime (#1636)

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* Add TimedCrowdsale::_extendTime

* Add tests for TimedCrowdsale extending method

* Reverse event arguments order

* Rename method argument

* Refactor TimedCrowdsale test

* Simplify TimedCrowdsaleImpl

* Fix extendTime method behaviour to deny TimedCrowdsale re-opening after it was ended

* Append chengelog

* Update CHANGELOG.md

Co-Authored-By: k06a <k06aaa@gmail.com>

* Update contracts/crowdsale/validation/TimedCrowdsale.sol

Co-Authored-By: k06a <k06aaa@gmail.com>

* Improve tests
This commit is contained in:
Anton Bukov
2019-03-06 17:38:57 +03:00
committed by Nicolás Venturo
parent 3772233cf5
commit 352ec94579
4 changed files with 82 additions and 1 deletions
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19
contracts/crowdsale/validation/TimedCrowdsale.sol
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@ -13,6 +13,13 @@ contract TimedCrowdsale is Crowdsale {
uint256 private _openingTime;
uint256 private _closingTime;
/**
* Event for crowdsale extending
* @param newClosingTime new closing time
* @param prevClosingTime old closing time
*/
event TimedCrowdsaleExtended(uint256 prevClosingTime, uint256 newClosingTime);
/**
* @dev Reverts if not in crowdsale time range.
*/
@ -74,4 +81,16 @@ contract TimedCrowdsale is Crowdsale {
function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal onlyWhileOpen view {
super._preValidatePurchase(beneficiary, weiAmount);
}
/**
* @dev Extend crowdsale
* @param newClosingTime Crowdsale closing time
*/
function _extendTime(uint256 newClosingTime) internal {
require(!hasClosed());
require(newClosingTime > _closingTime);
emit TimedCrowdsaleExtended(_closingTime, newClosingTime);
_closingTime = newClosingTime;
}
}