solidity/test/libsolidity/semanticTests/various/code_access_content.sol

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contract D {
bytes32 public x;
constructor() public {
bytes32 codeHash;
assembly {
let size := codesize()
codecopy(mload(0x40), 0, size)
codeHash := keccak256(mload(0x40), size)
}
x = codeHash;
}
}
contract C {
function testRuntime() public returns (bool) {
D d = new D();
bytes32 runtimeHash = keccak256(type(D).runtimeCode);
bytes32 otherHash;
uint256 size;
assembly {
size := extcodesize(d)
extcodecopy(d, mload(0x40), 0, size)
otherHash := keccak256(mload(0x40), size)
}
require(size == type(D).runtimeCode.length);
require(runtimeHash == otherHash);
return true;
}
function testCreation() public returns (bool) {
D d = new D();
bytes32 creationHash = keccak256(type(D).creationCode);
require(creationHash == d.x());
return true;
}
}
// ----
// testRuntime() -> true
// testCreation() -> true