protected override bool Visit(ASTNotEqual node)
{
if (!Visit(node.Left, node.Right))
{
return(false);
}
var left = node.Left.TypeInfo;
var right = node.Right.TypeInfo;
if (!left.Equals(right))
{
Error(node.Position, $"Cannot compare {left} and {right}");
return(false);
}
node.TypeInfo = Cache.GetBoolean();
return(true);
}
public override void VisitNotEqual(ASTNotEqual n)
{
SetupOperands(n);
//string equality, good times
if (_lastWalkedType == typeof(String))
{
_gen.Emit(OpCodes.Call, typeof(String).GetMethod("Equals", BindingFlags.Public | BindingFlags.Static, null,
new Type[] { typeof(string), typeof(string) }, null));
}
else
{
_gen.Emit(OpCodes.Ceq);
}
//compare it with 0 to negate
_gen.Emit(OpCodes.Ldc_I4_0);
_gen.Emit(OpCodes.Ceq);
_lastWalkedType = typeof(bool);
}
protected override bool Visit(ASTNotEqual node) => EmitBinary <CNotEqual>(node);
public override void VisitNotEqual(ASTNotEqual n)
{
TypeCheckEquality(n);
}
public bool Visit(ASTNotEqual node)
{
throw new NotImplementedException();
}
protected abstract bool Visit(ASTNotEqual node);
