mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
31 lines
1.2 KiB
Solidity
31 lines
1.2 KiB
Solidity
pragma experimental ABIEncoderV2;
|
|
|
|
contract C {
|
|
struct S { function() external f; }
|
|
function ggg(function() external x) external pure returns (uint256 r) {
|
|
assembly { r := calldataload(4) }
|
|
}
|
|
function h(S calldata x) external pure returns (uint256 r) {
|
|
x.f; // validation only happens here
|
|
assembly { r := calldataload(4) }
|
|
}
|
|
function dummy() external {}
|
|
function ffff(uint256 a) external view returns (uint256, uint256) {
|
|
S memory s = S(this.dummy);
|
|
assembly { mstore(s, a) }
|
|
return (this.ggg(s.f), this.h(s));
|
|
}
|
|
}
|
|
// ====
|
|
// compileViaYul: also
|
|
// ----
|
|
// ffff(uint256): 0 -> 0, 0
|
|
// ggg(function): 0 -> 0
|
|
// ffff(uint256): "01234567890123456789abcd" -> "01234567890123456789abcd", "01234567890123456789abcd"
|
|
// ggg(function): "01234567890123456789abcd" -> "01234567890123456789abcd"
|
|
// h((function)): "01234567890123456789abcd" -> "01234567890123456789abcd"
|
|
// h((function)): 0 -> 0
|
|
// ffff(uint256): "01234567890123456789abcdX" -> "01234567890123456789abcd", "01234567890123456789abcd"
|
|
// ggg(function): "01234567890123456789abcdX" -> FAILURE
|
|
// h((function)): "01234567890123456789abcdX" -> FAILURE
|