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| author | chriseth <chris@ethereum.org> | 2018-11-26 21:46:01 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-11-26 21:46:01 +0800 |
| commit | d00082f12f60ad4a76123e0905e5e3c76c1d2643 (patch) | |
| tree | 5ff54200ac67b1c261abc113677eaaa35dd30809 | |
| parent | d950905a28805b86b633a3fe22e27ea606a8d764 (diff) | |
| parent | b98a9eeb976b40f2f5a246889cadcb69e4596fc7 (diff) | |
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Merge pull request #5435 from fulldecent/patch-9
Define how inheritance affects storage
| -rw-r--r-- | docs/miscellaneous.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/miscellaneous.rst b/docs/miscellaneous.rst index cc2ba801..017d5b81 100644 --- a/docs/miscellaneous.rst +++ b/docs/miscellaneous.rst @@ -15,6 +15,10 @@ Statically-sized variables (everything except mapping and dynamically-sized arra - If an elementary type does not fit the remaining part of a storage slot, it is moved to the next storage slot. - Structs and array data always start a new slot and occupy whole slots (but items inside a struct or array are packed tightly according to these rules). +For contracts that use inheritance, the ordering of state variables is determined by the +C3-linearized order of contracts starting with the most base-ward contract. If allowed +by the above rules, state variables from different contracts do share the same storage slot. + .. warning:: When using elements that are smaller than 32 bytes, your contract's gas usage may be higher. This is because the EVM operates on 32 bytes at a time. Therefore, if the element is smaller |