==== Source: A ==== contract C { int private x; constructor (int p) public { x = p; } function getX() public returns (int) { return x; } } ==== Source: B ==== import "A" as M; contract D is M.C { constructor (int p) M.C(p) public {} } contract A { function g(int p) public returns (int) { D d = new D(p); return d.getX(); } } // ---- // g(int256): -1 -> -1 // gas legacy: 102086 // g(int256): 10 -> 10 // gas legacy: 101714