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Merge pull request #5541 from ethereum/clarifyCopyInheritance

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[DOCS] Clarify "copying bytecode" in inheritance.
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chriseth 2018-11-30 16:47:02 +01:00 committed by GitHub
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@ -1043,14 +1043,15 @@ Additional Resources for Understanding Events
Inheritance Inheritance
*********** ***********
Solidity supports multiple inheritance by copying code including polymorphism. Solidity supports multiple inheritance including polymorphism.
All function calls are virtual, which means that the most derived function All function calls are virtual, which means that the most derived function
is called, except when the contract name is explicitly given. is called, except when the contract name is explicitly given or the
``super`` keyword is used.
When a contract inherits from other contracts, only a single When a contract inherits from other contracts, only a single
contract is created on the blockchain, and the code from all the base contracts contract is created on the blockchain, and the code from all the base contracts
is copied into the created contract. is compiled into the created contract.
The general inheritance system is very similar to The general inheritance system is very similar to
`Python's <https://docs.python.org/3/tutorial/classes.html#inheritance>`_, `Python's <https://docs.python.org/3/tutorial/classes.html#inheritance>`_,