cerc-io/solidity
10
0
Fork 0
mirror of https://github.com/ethereum/solidity synced 2023-10-03 13:03:40 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #11866 from ethereum/clarifyExample

Browse Source 
Clarify function call options example.
This commit is contained in:
chriseth 2021-08-31 17:08:25 +02:00 committed by GitHub
commit 208ba61ee6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
docs/control-structures.rst
View File

@ -105,8 +105,10 @@ otherwise, the ``value`` option would not be available.
.. warning:: .. warning::
Be careful that ``feed.info{value: 10, gas: 800}`` only locally sets the Be careful that ``feed.info{value: 10, gas: 800}`` only locally sets the
``value`` and amount of ``gas`` sent with the function call, and the ``value`` and amount of ``gas`` sent with the function call, and the
parentheses at the end perform the actual call. So in this case, the parentheses at the end perform the actual call. So
function is not called and the ``value`` and ``gas`` settings are lost. ``feed.info{value: 10, gas: 800}`` does not call the function and
the ``value`` and ``gas`` settings are lost, only
``feed.info{value: 10, gas: 800}()`` performs the function call.
Due to the fact that the EVM considers a call to a non-existing contract to Due to the fact that the EVM considers a call to a non-existing contract to
always succeed, Solidity uses the ``extcodesize`` opcode to check that always succeed, Solidity uses the ``extcodesize`` opcode to check that