public virtual bool_const create_bool_const(bool val, LexLocation loc)
{
bool_const bc = new bool_const(val);
bc.source_context = GetTokenSourceContext(loc);
return(bc);
}
public override void visit(bool_const _bool_const)
{
text = "Value: " + _bool_const.val.ToString();
}
public virtual void visit(bool_const _bool_const)
{
DefaultVisit(_bool_const);
}
public virtual void post_do_visit(bool_const _bool_const)
{
}
public override void visit(bool_const _bool_const)
{
DefaultVisit(_bool_const);
pre_do_visit(_bool_const);
post_do_visit(_bool_const);
}
public override void Exit(syntax_tree_node st)
{
bracket_expr bre = st as bracket_expr;
if (bre != null)
{
if (bre.expr is int32_const)
{
Replace(st, bre.expr);
}
}
bin_expr vs = st as bin_expr;
if (vs != null)
{
if (vs.left is int32_const && vs.right is int32_const)
{
var a = vs.left as int32_const;
var b = vs.right as int32_const;
var op = vs.operation_type;
syntax_tree_node res;
switch (op)
{
case Operators.Plus:
res = new int32_const(a.val + b.val);
break;
case Operators.Minus:
res = new int32_const(a.val - b.val);
break;
case Operators.Multiplication:
res = new int32_const(a.val * b.val);
break;
case Operators.Division:
res = new double_const((double)a.val / b.val);
break;
case Operators.Greater:
res = new bool_const(a.val > b.val);
break;
case Operators.Less:
res = new bool_const(a.val < b.val);
break;
case Operators.GreaterEqual:
res = new bool_const(a.val >= b.val);
break;
case Operators.LessEqual:
res = new bool_const(a.val <= b.val);
break;
default:
res = vs;
break;
}
Replace(vs, res);
}
if (vs.left is int32_const && vs.right is double_const || vs.right is int32_const && vs.left is double_const || vs.left is double_const && vs.right is double_const)
{
double x, y;
if (vs.left is int32_const)
{
x = (vs.left as int32_const).val;
}
else
{
x = (vs.left as double_const).val;
}
if (vs.right is int32_const)
{
y = (vs.right as int32_const).val;
}
else
{
y = (vs.right as double_const).val;
}
var op = vs.operation_type;
syntax_tree_node res;
switch (op)
{
case Operators.Plus:
res = new double_const(x + y);
break;
case Operators.Minus:
res = new double_const(x - y);
break;
case Operators.Multiplication:
res = new double_const(x * y);
break;
case Operators.Division:
res = new double_const(x / y);
break;
case Operators.Greater:
res = new bool_const(x > y);
break;
case Operators.Less:
res = new bool_const(x < y);
break;
case Operators.GreaterEqual:
res = new bool_const(x >= y);
break;
case Operators.LessEqual:
res = new bool_const(x <= y);
break;
default:
res = vs;
break;
}
Replace(vs, res);
}
}
base.Exit(st); // это обязательно!
}
public virtual void visit(bool_const _bool_const)
{
}
public override void visit(bool_const _bool_const)
{
AddPossibleComments(_bool_const, true, true);
}
public virtual void visit(bool_const _bool_const)
{
}
public virtual void visit(bool_const _bool_const)
{
DefaultVisit(_bool_const);
}
public override void visit(bool_const _bool_const)
{
}
public override void visit(bool_const _bool_const)
{
executer.visit(_bool_const);
if (_bool_const.attributes != null)
this.visit((dynamic)_bool_const.attributes);
}