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Merge pull request #11315 from ethereum/minor-cf

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ControlFlowAnalyzer: Use temporary reference for more readable code
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chriseth 2021-04-26 14:21:49 +02:00 committed by GitHub
commit ddc030267e
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1 changed files with 8 additions and 6 deletions
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14
libsolidity/analysis/ControlFlowAnalyzer.cpp
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@ -134,18 +134,20 @@ void ControlFlowAnalyzer::checkUninitializedAccess(CFGNode const* _entry, CFGNod
for (auto const* variableOccurrence: uninitializedAccessesOrdered)
{
VariableDeclaration const& varDecl = variableOccurrence->declaration();
SecondarySourceLocation ssl;
if (variableOccurrence->occurrence())
ssl.append("The variable was declared here.", variableOccurrence->declaration().location());
ssl.append("The variable was declared here.", varDecl.location());
bool isStorage = variableOccurrence->declaration().type()->dataStoredIn(DataLocation::Storage);
bool isCalldata = variableOccurrence->declaration().type()->dataStoredIn(DataLocation::CallData);
bool isStorage = varDecl.type()->dataStoredIn(DataLocation::Storage);
bool isCalldata = varDecl.type()->dataStoredIn(DataLocation::CallData);
if (isStorage || isCalldata)
m_errorReporter.typeError(
3464_error,
variableOccurrence->occurrence() ?
*variableOccurrence->occurrence() :
variableOccurrence->declaration().location(),
varDecl.location(),
ssl,
"This variable is of " +
string(isStorage ? "storage" : "calldata") +
@ -153,10 +155,10 @@ void ControlFlowAnalyzer::checkUninitializedAccess(CFGNode const* _entry, CFGNod
(variableOccurrence->kind() == VariableOccurrence::Kind::Return ? "returned" : "accessed") +
" without prior assignment, which would lead to undefined behaviour."
);
else if (!_emptyBody && variableOccurrence->declaration().name().empty())
else if (!_emptyBody && varDecl.name().empty())
m_errorReporter.warning(
6321_error,
variableOccurrence->declaration().location(),
varDecl.location(),
"Unnamed return variable can remain unassigned. Add an explicit return with value to all non-reverting code paths or name the variable."
);
}