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Merge pull request #3038 from ethereum/interface-external

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Force interface functions as external (0.5.0)
This commit is contained in:
Yoichi Hirai 2017-10-10 12:21:08 +02:00 committed by GitHub
commit c35496bf4a
3 changed files with 33 additions and 2 deletions
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1
Changelog.md
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@ -9,6 +9,7 @@ Features:
* Syntax Checker: Unary ``+`` is now a syntax error as experimental 0.5.0 feature.
* Type Checker: Disallow non-pure constant state variables as experimental 0.5.0 feature.
* Type Checker: Do not add members of ``address`` to contracts as experimental 0.5.0 feature.
* Type Checker: Force interface functions to be external as experimental 0.5.0 feature.
* Type Checker: Require ``storage`` or ``memory`` keyword for local variables as experimental 0.5.0 feature.
Bugfixes:

12
libsolidity/analysis/TypeChecker.cpp
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@ -595,8 +595,16 @@ bool TypeChecker::visit(FunctionDefinition const& _function)
{
if (_function.isImplemented())
m_errorReporter.typeError(_function.location(), "Functions in interfaces cannot have an implementation.");
if (_function.visibility() < FunctionDefinition::Visibility::Public)
m_errorReporter.typeError(_function.location(), "Functions in interfaces cannot be internal or private.");
if (_function.sourceUnit().annotation().experimentalFeatures.count(ExperimentalFeature::V050))
{
if (_function.visibility() != FunctionDefinition::Visibility::External)
m_errorReporter.typeError(_function.location(), "Functions in interfaces must be declared external.");
}
else
{
if (_function.visibility() < FunctionDefinition::Visibility::Public)
m_errorReporter.typeError(_function.location(), "Functions in interfaces cannot be internal or private.");
}
if (_function.isConstructor())
m_errorReporter.typeError(_function.location(), "Constructor cannot be defined in interfaces.");
}

22
test/libsolidity/SolidityNameAndTypeResolution.cpp
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@ -5879,6 +5879,28 @@ BOOST_AUTO_TEST_CASE(interface_function_bodies)
CHECK_ERROR(text, TypeError, "Functions in interfaces cannot have an implementation");
}
BOOST_AUTO_TEST_CASE(interface_function_external)
{
char const* text = R"(
pragma experimental "v0.5.0";
interface I {
function f() external;
}
)";
success(text);
}
BOOST_AUTO_TEST_CASE(interface_function_public)
{
char const* text = R"(
pragma experimental "v0.5.0";
interface I {
function f() public;
}
)";
CHECK_ERROR(text, TypeError, "Functions in interfaces must be declared external.");
}
BOOST_AUTO_TEST_CASE(interface_function_internal)
{
char const* text = R"(