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Merge pull request #11569 from ethereum/fixcalltounimplementedmodifier

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Prevent calls to unimplemented modifiers.
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chriseth
2021-06-23 09:25:02 +02:00
committed by GitHub
parent 829bf0c18a c5923f7fcf
commit 26598a2603
3 changed files with 22 additions and 0 deletions
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test/libsolidity/syntaxTests/modifiers/use_unimplemented_static.sol
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contract A {
modifier m() virtual { _; }
}
abstract contract B {
modifier m() virtual;
}
contract C is A, B {
modifier m() override(A, B) { _; }
function f() B.m public {}
}
// ----
// TypeError 1835: (174-177): Cannot call unimplemented modifier. The modifier has no implementation in the referenced contract. Refer to it by its unqualified name if you want to call the implementation from the most derived contract.