mirror of
https://github.com/ethereum/solidity
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18 lines
889 B
ReStructuredText
18 lines
889 B
ReStructuredText
.. index:: contract, state variable, function, event, struct, enum, function;modifier
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***********************
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Structure of a Contract
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***********************
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Contracts in Solidity are similar to classes in object-oriented languages.
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Each contract can contain declarations of **state variables**, **functions**,
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**function modifiers**, **events**, **structs types** and **enum types**.
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Furthermore, contracts can inherit from other contracts.
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* State variables are values which are permanently stored in contract storage.
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* Functions are the executable units of code within a contract.
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* Function modifiers can be used to amend the semantics of functions in a declarative way.
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* Events are convenience interfaces with the EVM logging facilities.
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* Structs are custom defined types that can group several variables.
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* Enums can be used to create custom types with a finite set of values.
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