mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
29 lines
983 B
Solidity
29 lines
983 B
Solidity
pragma abicoder v2;
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library L {
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struct S { uint256 a; }
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function f(S storage s) external returns (uint) { return s.a; }
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function g(S memory m) public returns (uint) { return m.a; }
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}
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contract C {
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L.S s;
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constructor() { s.a = 42; }
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function f() public returns (bool, bool, uint256) {
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uint256 s_ptr;
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assembly { s_ptr := s.slot }
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(bool success, bytes memory data) = address(L).delegatecall(abi.encodeWithSelector(L.f.selector, s_ptr));
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return (L.f.selector == bytes4(keccak256("f(L.S storage)")), success, abi.decode(data, (uint256)));
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}
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function g() public returns (bool, bool, uint256) {
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(bool success, bytes memory data) = address(L).delegatecall(abi.encodeWithSelector(L.g.selector, L.S(23)));
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return (L.g.selector == bytes4(keccak256("g(L.S)")), success, abi.decode(data, (uint256)));
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}
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}
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// ====
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// EVMVersion: >homestead
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// compileViaYul: also
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// ----
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// library: L
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// f() -> true, true, 42
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// g() -> true, true, 23
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