public void setWhilte(ExprNode expr, BodyNode body)
{
fields.Add("expr", expr);
fields.Add("body", body);
//children.Add(body);
children.Add(expr);
}
public void setFor(string id, IterNode iterator, BodyNode body)
{
this.id = id;
fields.Add("iter", iterator);
fields.Add("body", body);
children.Add(iterator);
//children.Add(body);
}
public IfNode(ExprNode e, BodyNode b, BodyNode el) : base(NodeType.IfNode)
{
this.expr = e;
this.body = b;
this.else_body = el;
children = new List <BaseNode>();
//children.Add(expr);
//children.Add(body);
if (else_body != null)
{
children.Add(else_body);
}
}
// returns List of (type, object)
private BodyNode parseBody(List <string> tokens)
{
if (tokens.Count == 0)
{
return(null);
}
int cur = 0;
var body = new BodyNode();
while (true)
{
if (cur >= tokens.Count)
{
return(body);
}
int ind = findToken(tokens, (string s) => (s == "semi_t"), cur);
if (ind == -1)
{
////printList(tokens);
throw new SyntaxError("; is missing");
}
else
{
var t = tokens.GetRange(cur, ind - cur); // cur = 3 ind 5
var type = toBody(t);
switch (type)
{
case BodyType.Decl:
body.add(type, parseDeclaration(t));
break;
case BodyType.Expr:
body.add(type, parseExpression(t));
break;
default:
body.addAll(type, parseStatements(t));
break;
}
cur = ind + 1;
}
}
}
public void setProgram(BodyNode b)
{
this.program = b;
children.Add(program);
}
public void setBody(BodyNode b)
{
this.body = b;
children.Add(b);
}
public IfNode(ExprNode e, BodyNode b) : this(e, b, null)
{
}