public void testCantSimplifyCast() {
Number number = new Number(2);
Cast cast = new Cast(number);
cast.type = IntegerType.instance;
ExpressionVisitor visitor = new ExpressionVisitor(new SymbolTable());
assertEquals(cast, visitor.visit(cast));
}
public void testLongToInt() {
IdExpression expression = new IdExpression("l");
expression.type = LongType.instance;
Cast cast = new Cast(expression);
cast.type = IntegerType.instance;
ExpressionVisitor visitor = new ExpressionVisitor(new SymbolTable());
assertEquals(cast, visitor.visit(cast));
}
public void testDowncast() {
SymbolTableForTests table = new SymbolTableForTests();
table.addClasses("A", "B");
table.getClass("B").superName = "A";
Expression expression = new IdExpression("a");
expression.type = new IdType("A");
ExpressionVisitor visitor = new ExpressionVisitor(table);
Cast cast = new Cast(expression);
cast.type = new IdType("B");
assertEquals(visitor.visit(cast), cast);
}