cerc-io/solidity
11
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

Merge pull request #1737 from ethereum/localmappings

Browse Source 
Disallow uninitialized mapping variables.
This commit is contained in:
chriseth
2017-03-06 15:05:58 +01:00
committed by GitHub
parent 573b885337 c126edc6ea
commit 2fcccb97d3
4 changed files with 41 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libsolidity/analysis/TypeChecker.cpp
+5 -2
View File
@@ -730,13 +730,16 @@ bool TypeChecker::visit(VariableDeclarationStatement const& _statement)
if (auto ref = dynamic_cast<ReferenceType const*>(type(varDecl).get()))
{
if (ref->dataStoredIn(DataLocation::Storage))
{
warning(
varDecl.location(),
"Uninitialized storage pointer. Did you mean '<type> memory " + varDecl.name() + "'?"
);
}
}
else if (dynamic_cast<MappingType const*>(type(varDecl).get()))
typeError(
varDecl.location(),
"Uninitialized mapping. Mappings cannot be created dynamically, you have to assign them from a state variable."
);
varDecl.accept(*this);
return false;
}