@Override public DSLExpression visitBinary(Binary binary) { // signature: value == value can be folded to true if (IDENTITY_FOLD_OPERATORS.contains(binary.getOperator())) { if (binary.getLeft() instanceof Variable && binary.getRight() instanceof Variable) { Variable leftVar = ((Variable) binary.getLeft()); Variable rightVar = ((Variable) binary.getRight()); if (leftVar.equals(rightVar)) { // double and float cannot be folded as NaN is never identity equal if (!ElementUtils.typeEquals(leftVar.getResolvedType(), context.getType(float.class)) && !ElementUtils.typeEquals(leftVar.getResolvedType(), context.getType(double.class))) { return new BooleanLiteral(true); } } } } return super.visitBinary(binary); } });