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Don't assume that an expression cannot be associated with a function declaration

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This commit is contained in:
Kamil Śliwak 2020-05-26 22:18:41 +02:00
parent 50b200a5d5
commit f574d8ec3a
2 changed files with 24 additions and 2 deletions
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2
libsolidity/codegen/ir/IRGeneratorForStatements.cpp
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@ -675,8 +675,6 @@ void IRGeneratorForStatements::endVisit(FunctionCall const& _functionCall)
solAssert(functionDef->isImplemented(), ""); solAssert(functionDef->isImplemented(), "");
} }
else
solAssert(!functionType->hasDeclaration(), "");
solAssert(!functionType->takesArbitraryParameters(), ""); solAssert(!functionType->takesArbitraryParameters(), "");

24
test/libsolidity/semanticTests/functionCall/call_internal_function_via_expression.sol Normal file
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@ -0,0 +1,24 @@
contract C {
function foo() internal returns (uint) {
return 42;
}
function get_ptr(function() internal returns (uint) ptr) internal returns(function() internal returns (uint)) {
return ptr;
}
function associated() public returns (uint) {
// This expression directly references function definition
return (foo)();
}
function unassociated() public returns (uint) {
// This expression is not associated with a specific function definition
return (get_ptr(foo))();
}
}
// ====
// compileViaYul: also
// ----
// associated() -> 42
// unassociated() -> 42