cerc-io/solidity
16
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

Fix storage array abi encoding

Browse Source 
Fix incorrect abi encoding of storage array of data type that occupy multiple storage slots
This commit is contained in:
mingchuan 2019-06-19 10:46:05 +08:00
parent 7187a3e5ca
commit bfe074b2b1
No known key found for this signature in database
GPG Key ID: 607CD25FA2D03651
4 changed files with 26 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Changelog.md
View File

@ -1,5 +1,9 @@
### 0.5.10 (unreleased)
Important Bugfixes:
* Fix incorrect abi encoding of storage array of data type that occupy multiple storage slots
Language Features:

2
libsolidity/codegen/ABIFunctions.h
View File

@ -154,7 +154,7 @@ private:
EncodingOptions const& _options
);
/// Part of @a abiEncodingFunction for array target type and given memory array or
/// a given storage array with one item per slot.
/// a given storage array with every item occupies one or multiple full slots.
std::string abiEncodingFunctionSimpleArray(
ArrayType const& _givenType,
ArrayType const& _targetType,

29
libsolidity/codegen/YulUtilFunctions.cpp
View File

@ -589,18 +589,29 @@ string YulUtilFunctions::nextArrayElementFunction(ArrayType const& _type)
}
)");
templ("functionName", functionName);
if (_type.location() == DataLocation::Memory)
switch (_type.location())
{
case DataLocation::Memory:
templ("advance", "0x20");
else if (_type.location() == DataLocation::Storage)
templ("advance", "1");
else if (_type.location() == DataLocation::CallData)
templ("advance", toCompactHexWithPrefix(
break;
case DataLocation::Storage:
{
u256 size = _type.baseType()->storageSize();
solAssert(size >= 1, "");
templ("advance", toCompactHexWithPrefix(size));
break;
}
case DataLocation::CallData:
{
u256 size =
_type.baseType()->isDynamicallyEncoded() ?
32 :
_type.baseType()->calldataEncodedSize()
));
else
solAssert(false, "");
_type.baseType()->calldataEncodedSize();
solAssert(size >= 32 && size % 32 == 0, "");
templ("advance", toCompactHexWithPrefix(size));
break;
}
}
return templ.render();
});
}

2
libsolidity/codegen/YulUtilFunctions.h
View File

@ -113,7 +113,7 @@ public:
/// for the data position of an array which is stored in that slot / memory area / calldata area.
std::string arrayDataAreaFunction(ArrayType const& _type);
/// @returns the name of a function that advances an array data pointer to the next element.
/// Only works for memory arrays, calldata arrays and storage arrays that store one item per slot.
/// Only works for memory arrays, calldata arrays and storage arrays that every item occupies one or multiple full slots.
std::string nextArrayElementFunction(ArrayType const& _type);
/// @returns the name of a function that performs index access for mappings.