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Do not consider shadowing in variable names inside event declarations

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This commit is contained in:
Federico Bond 2017-10-04 12:09:52 -03:00
parent 19274c7890
commit 76d3d24842
3 changed files with 16 additions and 2 deletions
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1
Changelog.md
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@ -11,6 +11,7 @@ Bugfixes:
* Type Checker: Properly support overwriting members inherited from ``address`` in a contract
(such as ``balance``, ``transfer``, etc.)
* Type Checker: Prevent duplicate event declarations.
* Type Checker: Do not mark event parameters as shadowing state variables.
### 0.4.17 (2017-09-21)

6
libsolidity/analysis/NameAndTypeResolver.cpp
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@ -647,10 +647,12 @@ void DeclarationRegistrationHelper::registerDeclaration(Declaration& _declaratio
bool warnAboutShadowing = true;
// Do not warn about shadowing for structs and enums because their members are
// not accessible without prefixes.
// not accessible without prefixes. Also do not warn about event parameters
// because they don't participate in any proper scope.
if (
dynamic_cast<StructDefinition const*>(m_currentScope) ||
dynamic_cast<EnumDefinition const*>(m_currentScope)
dynamic_cast<EnumDefinition const*>(m_currentScope) ||
dynamic_cast<EventDefinition const*>(m_currentScope)
)
warnAboutShadowing = false;
// Do not warn about the constructor shadowing the contract.

11
test/libsolidity/SolidityNameAndTypeResolution.cpp
View File

@ -6371,6 +6371,17 @@ BOOST_AUTO_TEST_CASE(function_override_is_not_shadowing)
CHECK_SUCCESS_NO_WARNINGS(text);
}
BOOST_AUTO_TEST_CASE(event_parameter_cannot_shadow_state_variable)
{
char const* text = R"(
contract C {
address a;
event E(address a);
}
)";
CHECK_SUCCESS_NO_WARNINGS(text);
}
BOOST_AUTO_TEST_CASE(callable_crash)
{
char const* text = R"(