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Merge pull request #2697 from ethereum/unimplemented-inlined-library

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Raise error when using unimplemented internal library functions.
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chriseth 2017-08-08 15:53:44 +02:00 committed by GitHub
commit 41e724360f
3 changed files with 26 additions and 1 deletions
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3
Changelog.md
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@ -7,8 +7,9 @@ Bugfixes:
* Code Generator: ``.delegatecall()`` should always return execution outcome.
* Code Generator: Provide "new account gas" for low-level ``callcode`` and ``delegatecall``.
* Type Checker: Constructors must be implemented if declared.
* Type Checker: Do not mark overloaded functions as shadowing other functions.
* Type Checker: Disallow the ``.gas()`` modifier on ``ecrecover``, ``sha256`` and ``ripemd160``.
* Type Checker: Do not mark overloaded functions as shadowing other functions.
* Type Checker: Internal library functions must be implemented if declared.
### 0.4.14 (2017-07-31)

2
libsolidity/analysis/TypeChecker.cpp
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@ -518,6 +518,8 @@ bool TypeChecker::visit(FunctionDefinition const& _function)
_function.body().accept(*this);
else if (_function.isConstructor())
m_errorReporter.typeError(_function.location(), "Constructor must be implemented if declared.");
else if (isLibraryFunction && _function.visibility() <= FunctionDefinition::Visibility::Internal)
m_errorReporter.typeError(_function.location(), "Internal library function must be implemented if declared.");
return false;
}

22
test/libsolidity/SolidityNameAndTypeResolution.cpp
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@ -6536,6 +6536,28 @@ BOOST_AUTO_TEST_CASE(constructor_without_implementation)
CHECK_ERROR(text, TypeError, "Constructor must be implemented if declared.");
}
BOOST_AUTO_TEST_CASE(library_function_without_implementation)
{
char const* text = R"(
library L {
function f();
}
)";
CHECK_SUCCESS_NO_WARNINGS(text);
text = R"(
library L {
function f() internal;
}
)";
CHECK_ERROR(text, TypeError, "Internal library function must be implemented if declared.");
text = R"(
library L {
function f() private;
}
)";
CHECK_ERROR(text, TypeError, "Internal library function must be implemented if declared.");
}
BOOST_AUTO_TEST_SUITE_END()
}