michael@0: // The argument to Set can be a generator-expression.
michael@0: 
michael@0: var s = Set(k * k for (k of [1, 2, 3, 4]));
michael@0: assertEq(s.size, 4);
michael@0: assertEq(s.has(1), true);
michael@0: assertEq(s.has(4), true);
michael@0: assertEq(s.has(9), true);
michael@0: assertEq(s.has(16), true);