public static procedure_definition BuildToStringFuncForAutoClass(List <ident> names)
{
var pal = new procedure_attributes_list(proc_attribute.attr_override);
var fp = new formal_parameters();
var ff = new function_header("ToString", "string", fp, pal);
var cleft = new char_const('(');
var cright = new char_const(')');
var ccomma = new char_const(',');
bin_expr ex = new bin_expr(cleft, cright, Operators.Plus);
for (var i = 0; i < names.Count; i++)
{
var dn = new dot_node(names[i], new ident("ToString"));
var asnode = new typecast_node(names[i], new named_type_reference("object"), op_typecast.as_op);
var eqnode = new bin_expr(asnode, new nil_const(), Operators.Equal);
var expr = new question_colon_expression(eqnode, new string_const("nil"), dn);
ex.left = new bin_expr(ex.left, expr, Operators.Plus);
if (i < names.Count - 1)
{
ex.left = new bin_expr(ex.left, ccomma, Operators.Plus);
}
}
var ass = new assign("Result", ex);
return(BuildShortProcFuncDefinitionNoSC(ff, ass));
}
public override void visit(double_question_node dqn)
{
var st = dqn.Parent;
while (!(st is statement))
{
st = st.Parent;
}
var tname = "#temp" + UniqueNumStr();
var tt = new var_statement(new ident(tname), dqn.left);
tt.var_def.Parent = tt;
var l = new List <statement>();
l.Add(tt);
l.Add(st as statement);
expression right = dqn.right;
var eq = new bin_expr(new ident(tname), new nil_const(), Operators.NotEqual, dqn.left.source_context);
var qce = new question_colon_expression(eq, new ident(tname), right, dqn.source_context);
ReplaceUsingParent(dqn, qce);
visit(qce);
ReplaceStatementUsingParent(st as statement, l);
visit(tt);
}
/*public question_colon_expression ConvertToQCE1(dot_question_node dqn)
* {
* addressed_value left = dqn.left;
* addressed_value right = dqn.right;
*
* var eq = new bin_expr(left, new nil_const(), Operators.Equal, left.source_context);
*
* var nr = Into(left, right);
*
* var q = new question_colon_expression(eq, new nil_const(), nr, dqn.source_context);
* nr.Parent = q;
* return q;
* }*/
public question_colon_expression ConvertToQCE1(dot_question_node dqn, string name)
{
addressed_value right = dqn.right;
var eq = new bin_expr(new ident(name), new nil_const(), Operators.Equal, dqn.left.source_context);
var nr = Into(new ident(name), right);
var q = new question_colon_expression(eq, new nil_const(), nr, dqn.source_context);
nr.Parent = q;
return(q);
}
public question_colon_expression ConvertToQCE(dot_question_node dqn)
{
addressed_value left = dqn.left;
addressed_value right = dqn.right;
var eq = new bin_expr(left, new nil_const(), Operators.Equal, left.source_context);
addressed_value dn = null;
var dnleft = right; // Левая часть dn
addressed_value rdqn = null;
addressed_value ldqn = null;
// Если right - это dot_question_node, то протащить внутрь него left. В силу ассоциирования слева направо достаточно на первый уровень.
if (right.GetType() == typeof(dot_question_node))
{
var dqn_int = right as dot_question_node;
ldqn = dqn_int.left;
dnleft = ldqn;
rdqn = dqn_int.right;
// необходимо left протащить внутрь в ldqn
}
// Пока right - это dot_node, то необходимо протаскивать left чтобы присоединить его к первому не dot_node
while (dnleft.GetType() == typeof(dot_node))
{
dn = dnleft;
dnleft = (dnleft as dot_node).left;
}
// В итоге в dnleft - самый внутренний left, который уже не является dot_node
dnleft = new dot_node(left, dnleft, left.source_context); // Прикрепили right к самому внутреннему левому узлу в нотации a.b.c.d
if (dn != null)
{
(dn as dot_node).left = dnleft;
}
else if (rdqn == null)
{
right = dnleft;
}
else
{
right = new dot_question_node(dnleft, (right as dot_question_node).right, dnleft.source_context);
}
var q = new question_colon_expression(eq, new nil_const(), right, dqn.source_context);
right.Parent = q;
return(q);
}
public override void visit(dot_question_node dqn)
{
var st = dqn.Parent;
while ((st != null) && !(st is statement))
{
st = st.Parent;
}
if (st == null)
{
throw new SyntaxVisitorError("?._CANNOT_BE_IN_THIS_CONTEXT", dqn.source_context);
}
var tname = "#dqn_temp" + UniqueNumStr();
dot_question_node rif = null;
var qce = ConvertToQCE1(dqn, tname);
if (qce.ret_if_false is dot_question_node dn)
{
rif = dn;
var expr = new question_colon_expression(qce.condition, qce.ret_if_true, rif.left);
rif.left.ExprToQCE = expr;
}
var sug = sugared_addressed_value.NewP(dqn, qce, dqn.source_context);
ReplaceUsingParent(dqn, sug);
//Replace(dqn, sug); // Этот не подходит!
var dl = (dqn.left.ExprToQCE == null ? dqn.left : dqn.left.ExprToQCE) as addressed_value;
dqn.Parent = null;
var tt = new var_statement(new ident(tname), dl, dqn.source_context);
tt.var_def.Parent = tt;
var l = new List <statement>();
l.Add(tt);
l.Add(st as statement);
ReplaceStatementUsingParent(st as statement, l);
visit(qce);
visit(tt);
}
public override void visit(question_colon_expression node)
{
}
public virtual void visit(question_colon_expression _question_colon_expression)
{
DefaultVisit(_question_colon_expression);
}
public override void visit(question_colon_expression _question_colon_expression)
{
DefaultVisit(_question_colon_expression);
pre_do_visit(_question_colon_expression);
visit(question_colon_expression.condition);
visit(question_colon_expression.ret_if_true);
visit(question_colon_expression.ret_if_false);
post_do_visit(_question_colon_expression);
}
public virtual void post_do_visit(question_colon_expression _question_colon_expression)
{
}
public virtual void visit(question_colon_expression _question_colon_expression)
{
}
public override void visit(question_colon_expression _question_colon_expression)
{
_question_colon_expression.condition.visit(this);
_question_colon_expression.ret_if_true.visit(this);
_question_colon_expression.ret_if_false.visit(this);
}
private void VisitQuestionColonExpression(question_colon_expression en)
{
VisitExpression(en.internal_condition);
VisitExpression(en.internal_ret_if_true);
VisitExpression(en.internal_ret_if_false);
}
public virtual void visit(question_colon_expression _question_colon_expression)
{
}
public virtual void visit(question_colon_expression _question_colon_expression)
{
DefaultVisit(_question_colon_expression);
}
public override void visit(question_colon_expression node)
{
prepare_node(node.condition, "condition");
prepare_node(node.ret_if_true, "ret_if_true");
prepare_node(node.ret_if_false, "ret_if_false");
}
public override void visit(question_colon_expression _question_colon_expression)
{
executer.visit(_question_colon_expression);
if (_question_colon_expression.condition != null)
this.visit((dynamic)_question_colon_expression.condition);
if (_question_colon_expression.ret_if_true != null)
this.visit((dynamic)_question_colon_expression.ret_if_true);
if (_question_colon_expression.ret_if_false != null)
this.visit((dynamic)_question_colon_expression.ret_if_false);
if (_question_colon_expression.attributes != null)
this.visit((dynamic)_question_colon_expression.attributes);
}