public For(Assign init, Expression comparison, Assign update, Statement stmt, LineId line)
: base(line)
{
this.init = init;
this.comparison = comparison;
this.stmt = stmt;
this.update = update;
}
private Statement ForStatement()
{
LineId line = lexer.LineId; // This is the line that the FOR key word is used on
Match(Token.For);
Location location = Location(); // this is the counting variable
Match(Token.Equals);
Expression startVal = Expression(); // This is the starting value
Match(Token.To);
Expression endVal = Expression(); // this is the ending value
Match(Token.EndOfLine);
Block block = Block(Token.Next);
LineId endLine = lexer.LineId; // This is the line that the NEXT keyword is used on
Match(Token.Next);
Match(Token.Variable);
Assign init = new Assign(location, startVal, line);
Assign update = new Assign(location, new Add(new LocationReference(location, endLine),
new NumberLiteral(1, endLine), endLine), endLine);
Expression comparison = RelationalExpression.CompareLessThanEquals(new LocationReference(location, line), endVal, line);
return new For(init, comparison, update, block, line);
}