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Contract level checker: Disallow free function redefinition and alias

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shadowing another free function

Co-authored-by: chriseth <chris@ethereum.org>
This commit is contained in:
Bhargava Shastry
2020-09-25 17:09:58 +02:00
co-authored by chriseth
parent 1cc0d642e8
commit e2a2276272
45 changed files with 564 additions and 17 deletions
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libsolidity/analysis/ContractLevelChecker.h
+6 -3
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@@ -39,7 +39,7 @@ namespace solidity::frontend
/**
* Component that verifies overloads, abstract contracts, function clashes and others
* checks at contract or function level.
* checks at file, contract, or function level.
*/
class ContractLevelChecker
{
@@ -51,11 +51,14 @@ public:
m_errorReporter(_errorReporter)
{}
/// Performs checks on the given source ast.
/// @returns true iff all checks passed. Note even if all checks passed, errors() can still contain warnings
bool check(SourceUnit const& _sourceUnit);
private:
/// Performs checks on the given contract.
/// @returns true iff all checks passed. Note even if all checks passed, errors() can still contain warnings
bool check(ContractDefinition const& _contract);
private:
/// Checks that two functions defined in this contract with the same name have different
/// arguments and that there is at most one constructor.
void checkDuplicateFunctions(ContractDefinition const& _contract);