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| author | chriseth <chris@ethereum.org> | 2018-12-13 00:25:46 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-12-13 00:25:46 +0800 |
| commit | 1c8c8734654a4bea8270beff7e1a295323002af3 (patch) | |
| tree | a964b98ccf04a5b215f92f3ab7777ac0dbb418f8 /docs/frequently-asked-questions.rst | |
| parent | 87237281bf252b7afcf5d1295e75a03bf41ac864 (diff) | |
| parent | a4da8c1ad83eddbf957d02ef44e6a5d4aad65904 (diff) | |
| download | dexon-solidity-1c8c8734654a4bea8270beff7e1a295323002af3.tar.gz dexon-solidity-1c8c8734654a4bea8270beff7e1a295323002af3.tar.zst dexon-solidity-1c8c8734654a4bea8270beff7e1a295323002af3.zip | |
Merge pull request #5633 from ethereum/faq-kill
DOCS: Remove FAQ item on killing contracts
Diffstat (limited to 'docs/frequently-asked-questions.rst')
| -rw-r--r-- | docs/frequently-asked-questions.rst | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/docs/frequently-asked-questions.rst b/docs/frequently-asked-questions.rst index e58db133..a4ef3684 100644 --- a/docs/frequently-asked-questions.rst +++ b/docs/frequently-asked-questions.rst @@ -9,29 +9,6 @@ This list was originally compiled by `fivedogit <mailto:fivedogit@gmail.com>`_. Basic Questions *************** -Create a contract that can be killed and return funds -===================================================== - -First, a word of warning: Killing contracts sounds like a good idea, because "cleaning up" -is always good, but as seen above, it does not really clean up. Furthermore, -if Ether is sent to removed contracts, the Ether will be forever lost. - -If you want to deactivate your contracts, it is preferable to **disable** them by changing some -internal state which causes all functions to throw. This will make it impossible -to use the contract and ether sent to the contract will be returned automatically. - -Now to answering the question: Inside a constructor, ``msg.sender`` is the -creator. Save it. Then ``selfdestruct(creator);`` to kill and return funds. - -`example <https://github.com/fivedogit/solidity-baby-steps/blob/master/contracts/05_greeter.sol>`_ - -Note that if you ``import "mortal"`` at the top of your contracts and declare -``contract SomeContract is mortal { ...`` and compile with a compiler that already -has it (which includes `Remix <https://remix.ethereum.org/>`_), then -``kill()`` is taken care of for you. Once a contract is "mortal", then you can -``contractname.kill.sendTransaction({from:eth.coinbase})``, just the same as my -examples. - If I return an ``enum``, I only get integer values in web3.js. How to get the named values? =========================================================================================== |