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			62 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Solidity
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			1.9 KiB
		
	
	
	
		
			Solidity
		
	
	
	
	
	
==== Source: a.sol ====
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import "a.sol" as M;
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library L {
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    function f(uint256 v) external pure returns (uint) {
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        return v * v;
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    }
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    function g(uint256 v) external returns (uint) {
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        return v * v;
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    }
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}
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contract C {
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    function addr() public view returns (bool) {
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        return address(M.L) == address(0);
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    }
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    function g(uint256 v) public view returns (uint256) {
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        return M.L.f(v);
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    }
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    function h(uint256 v) public returns (uint256) {
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        (bool success, bytes memory result) = address(M.L).delegatecall(abi.encodeWithSignature("f(uint256)", v));
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        assert(success);
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        return abi.decode(result, (uint256));
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    }
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    function i(uint256 v) public returns (uint256) {
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        (bool success, bytes memory result) = address(M.L).call(abi.encodeWithSignature("f(uint256)", v));
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        assert(success);
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        return abi.decode(result, (uint256));
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    }
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    function j(uint256 v) public returns (uint256) {
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        (bool success, bytes memory result) = address(M.L).delegatecall(abi.encodeWithSignature("g(uint256)", v));
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        assert(success);
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        return abi.decode(result, (uint256));
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    }
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    function k(uint256 v) public returns (uint256) {
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        (bool success, bytes memory result) = address(M.L).call(abi.encodeWithSignature("g(uint256)", v));
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        assert(success);
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        return abi.decode(result, (uint256));
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    }
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}
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// ====
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// EVMVersion: >=byzantium
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// compileViaYul: also
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// ----
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// library: L
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// addr() -> false
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// g(uint256): 1 -> 1
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// g(uint256): 2 -> 4
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// g(uint256): 4 -> 16
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// h(uint256): 1 -> 1
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// h(uint256): 2 -> 4
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// h(uint256): 4 -> 16
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// i(uint256): 1 -> 1
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// i(uint256): 2 -> 4
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// i(uint256): 4 -> 16
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// j(uint256): 1 -> 1
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// j(uint256): 2 -> 4
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// j(uint256): 4 -> 16
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// k(uint256): 1 -> FAILURE, hex"4e487b71", 0x01
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// k(uint256): 2 -> FAILURE, hex"4e487b71", 0x01
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// k(uint256): 4 -> FAILURE, hex"4e487b71", 0x01
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