public TreeFor(TokenFor forToken, TokenVariable forVar, ArichmetichTree updateForVar, TreeFunctional tree) : base()
{
if (tree.head.type == TokenType.IF || tree.head.type == TokenType.FOR)
{
var tmp = tree as TreeIf;
this.stackVariable = tmp.stackVariable;
foreach (var item in tmp.stackVariableLocal)
{
this.stackVariable.Add(item.Key, item.Value);
}
}
else
{
this.stackVariable = tree.stackVariable;
}
this.head = forToken;
this.forVar = forVar;
this.updateForVar = updateForVar;
}
private void ProcessFor(TreeFunctional tree, ref int i, ref Token currentToken)
{
TokenFor forToken = currentToken as TokenFor;
currentToken = GetNextToken(ref i, tree);
if (currentToken.type != TokenType.ARITHMETIC_BRACKET_OPEN)
{
throw new Exception("Expected open bracket after for, Line: " + i.ToString());
}
currentToken = GetNextToken(ref i, tree);
TokenVariable forVar = null;
if (currentToken.type == TokenType.VARIABLE)
{
forVar = currentToken as TokenVariable;
}
int endPos = i;
if (forVar != null)
{
while (this.text[++endPos] != ';')
{
;
}
TreeFunctional treeForInitForVar = new TreeFunctional(null, TokenType.FUNCTION, i - forVar.name.Length - 1, endPos);
Process(treeForInitForVar);
forVar.data = treeForInitForVar.stackVariable[forVar.name].data;
i = endPos + 1;
}
List <Token> forStatement = new List <Token>();
currentToken = GetNextToken(ref i, tree);
while (currentToken.type != TokenType.END_OP)
{
forStatement.Add(currentToken);
currentToken = GetNextToken(ref i, tree);
}
currentToken = GetNextToken(ref i, tree);
ArichmetichTree updateVarTree = null;
if (currentToken.type != TokenType.ARITHMETIC_BRACKET_CLOSE)
{
if (currentToken.type != TokenType.VARIABLE)
{
throw new Exception("Expect var in update var posution in for, Line: " + i.ToString());
}
updateVarTree = new ArichmetichTree(currentToken as TokenVariable);
currentToken = GetNextToken(ref i, tree);
if (currentToken.type != TokenType.ASSIGN)
{
throw new Exception("Expect assign in update pos in for, Line: " + i.ToString());
}
currentToken = GetNextToken(ref i, tree);
while (currentToken.type != TokenType.ARITHMETIC_BRACKET_CLOSE)
{
updateVarTree.PutToken(currentToken);
currentToken = GetNextToken(ref i, tree);
}
}
TreeFor forTree = new TreeFor(forToken, forVar, updateVarTree, tree);
while (forTree.ProcessStatement(forStatement, i))
{
Process(forTree);
forTree.ProcessUpdateForVar();
}
i = (forTree.head as TokenLogic).endPos + 1;
}
