solidity/docs/contracts.rst

.. index:: ! contract

.. _contracts:

##########
Contracts
##########

Contracts in Solidity are similar to classes in object-oriented languages. They
contain persistent data in state variables, and functions that can modify these
variables. Calling a function on a different contract (instance) will perform
an EVM function call and thus switch the context such that state variables
in the calling contract are
inaccessible. A contract and its functions need to be called for anything to happen.
There is no "cron" concept in Ethereum to call a function at a particular event automatically.

.. include:: contracts/creating-contracts.rst

.. include:: contracts/visibility-and-getters.rst

.. include:: contracts/function-modifiers.rst

.. include:: contracts/constant-state-variables.rst
.. include:: contracts/functions.rst

.. include:: contracts/events.rst
.. include:: contracts/errors.rst

.. include:: contracts/inheritance.rst

.. include:: contracts/abstract-contracts.rst
.. include:: contracts/interfaces.rst

.. include:: contracts/libraries.rst

.. include:: contracts/using-for.rst
Imported documentation. 2015-12-07 20:16:25 +00:00			`.. index:: ! contract`

Disallow conversion between unrelated contract types. 2018-06-19 19:32:03 +00:00			`.. _contracts:`

Imported documentation. 2015-12-07 20:16:25 +00:00			`##########`
			`Contracts`
			`##########`

Update documentation to version 0.4.0. 2016-09-05 14:29:08 +00:00			`Contracts in Solidity are similar to classes in object-oriented languages. They`
Update contracts. 2019-12-12 11:52:18 +00:00			`contain persistent data in state variables, and functions that can modify these`
shortened lines to 79 2016-03-10 19:53:13 +00:00			`variables. Calling a function on a different contract (instance) will perform`
Update contracts. 2019-12-12 11:52:18 +00:00			`an EVM function call and thus switch the context such that state variables`
			`in the calling contract are`
Mention that there is no Cron in Ethereum 2019-01-16 15:39:29 +00:00			`inaccessible. A contract and its functions need to be called for anything to happen.`
			`There is no "cron" concept in Ethereum to call a function at a particular event automatically.`
Imported documentation. 2015-12-07 20:16:25 +00:00
Split creating contracts 2019-01-07 10:04:31 +00:00			`.. include:: contracts/creating-contracts.rst`
Imported documentation. 2015-12-07 20:16:25 +00:00
Split Visibility and Getters doc 2019-01-07 10:58:11 +00:00			`.. include:: contracts/visibility-and-getters.rst`
Imported documentation. 2015-12-07 20:16:25 +00:00
Split Function modifiers doc into smaller file 2019-01-07 12:52:17 +00:00			`.. include:: contracts/function-modifiers.rst`
Imported documentation. 2015-12-07 20:16:25 +00:00
Split Constant State Variables doc 2019-01-07 13:14:26 +00:00			`.. include:: contracts/constant-state-variables.rst`
Split functions docs 2019-01-07 13:27:32 +00:00			`.. include:: contracts/functions.rst`
Document function overloads and resolution 2017-11-21 11:01:59 +00:00
Split events docs into file 2019-01-07 13:50:21 +00:00			`.. include:: contracts/events.rst`
Documentation for custom errors. 2021-02-04 14:58:06 +00:00			`.. include:: contracts/errors.rst`
Imported documentation. 2015-12-07 20:16:25 +00:00
Split inheritance into new doc 2019-01-07 14:37:33 +00:00			`.. include:: contracts/inheritance.rst`
docs: document the resriction about a function and an event of the same name, and so on 2017-01-03 18:40:50 +00:00
Split Abstract Contracts docs to new file 2019-01-07 14:45:39 +00:00			`.. include:: contracts/abstract-contracts.rst`
Split interfaces into new file 2019-01-07 16:49:34 +00:00			`.. include:: contracts/interfaces.rst`
[DOCS] Update contracts section. 2018-09-20 20:07:04 +00:00
Split libraries into new doc 2019-01-07 17:05:27 +00:00			`.. include:: contracts/libraries.rst`
Document call protector. 2018-01-19 15:52:23 +00:00
Split using for into new file 2019-01-07 17:08:00 +00:00			`.. include:: contracts/using-for.rst`