solidity/test/libsolidity/syntaxTests/controlFlow/storageReturn/assembly/reverting_function.sol

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contract C {
struct S { bool f; }
S s;
function f() internal pure returns (S storage c) {
// this could be allowed, but currently control flow for functions is not analysed
assembly {
function f() { revert(0, 0) }
f()
}
}
}
// ----
// TypeError: (87-98): This variable is of storage pointer type and can be returned without prior assignment, which would lead to undefined behaviour.