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https://github.com/Instadapp/aave-protocol-v2.git
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65 lines
1.5 KiB
Solidity
65 lines
1.5 KiB
Solidity
pragma solidity ^0.6.8;
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// Comments made with // are due current max code size at LendingPool
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// import {Errors} from '../libraries/helpers/Errors.sol';
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/**
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* @dev Contract module which allows children to implement an emergency stop
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* mechanism that can be triggered by an authorized account.
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*
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* This module is used through inheritance. It will make available the
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* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
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* the functions of your contract. Note that they will not be pausable by
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* simply including this module, only once the modifiers are put in place.
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*/
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contract PausablePool {
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/**
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* @dev Emitted when the pause is triggered by `account`.
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*/
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event Paused();
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/**
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* @dev Emitted when the pause is lifted by `account`.
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*/
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event Unpaused();
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bool private _paused;
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/**
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* @dev Returns true if the contract is paused, and false otherwise.
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*/
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function paused() public virtual view returns (bool) {
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return _paused;
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}
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/**
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* @dev Modifier to make a function callable only when the contract is not paused.
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*
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* Requirements:
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*
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* - The contract must not be paused.
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*/
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modifier whenNotPaused() {
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// require(!_paused, Errors.IS_PAUSED);
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require(!_paused, '54');
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_;
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}
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/**
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* @dev Returns to normal state.
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*
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* Requirements:
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*
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* - The contract must be paused.
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*/
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function _setPause(bool val) internal virtual {
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_paused = val;
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if (_paused) {
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emit Paused();
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return;
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}
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emit Unpaused();
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}
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}
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