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;
}
public TreeIf(TokenIfElse ifToken, 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 = ifToken;
this.arichmeticStatementTree = new ArichmetichTree(null);
this.stackVariableLocal = new Dictionary <string, TokenVariable>();
}
private void ProcessVariable(TreeFunctional tree, ref int i, ref Token currentToken, bool withAssign = true)
{
Token nextToken = GetNextToken(ref i, tree);
if (nextToken.type == TokenType.ASSIGN || !withAssign)
{
if (withAssign)
{
nextToken = GetNextToken(ref i, tree);
}
var type = nextToken.type;
if (type == TokenType.FUNCTION)
{
nextToken = ProcessFunction(tree, ref i, ref nextToken);
if (nextToken == null)
{
throw new Exception("Expected return value in function, Line:" + i);
}
(currentToken as TokenVariable).data = (nextToken as TokenVariable).data;
(currentToken as TokenVariable).varType = (nextToken as TokenVariable).varType;
nextToken = GetNextToken(ref i, tree);
type = nextToken.type;
}
if (type == TokenType.NUMERIC_CONST || type == TokenType.ARITHMETIC_BRACKET_OPEN ||
(type == TokenType.VARIABLE && (nextToken as TokenVariable).varType != VariableType.STRING))
{
ArichmetichTree arTree = new ArichmetichTree(currentToken as TokenVariable);
tree.next = arTree;
int numBracket = nextToken.type == TokenType.ARITHMETIC_BRACKET_OPEN ? 1 : 0;
while (nextToken.type != TokenType.END_OP && nextToken.type != TokenType.COMA && (nextToken.type != TokenType.ARITHMETIC_BRACKET_CLOSE || numBracket == 0))
{
arTree.PutToken(nextToken);
nextToken = GetNextToken(ref i, tree);
switch (nextToken.type)
{
case TokenType.ARITHMETIC_BRACKET_OPEN:
numBracket++;
break;
case TokenType.ARITHMETIC_BRACKET_CLOSE:
numBracket--;
break;
case TokenType.FUNCTION:
nextToken = ProcessFunction(tree, ref i, ref nextToken);
if (nextToken == null)
{
throw new Exception("Expected return value in function, Line:" + i);
}
break;
}
}
}
else
if (type == TokenType.VARIABLE && (type == TokenType.VARIABLE && (nextToken as TokenVariable).varType != VariableType.NUMERIC))
{
StringTree strTree = new StringTree(currentToken as TokenVariable);
tree.next = strTree;
while (nextToken.type != TokenType.END_OP && nextToken.type != TokenType.COMA && nextToken.type != TokenType.ARITHMETIC_BRACKET_CLOSE)
{
strTree.AddToken(nextToken as TokenVariable);
nextToken = GetNextToken(ref i, tree);
if (nextToken.type == TokenType.END_OP || nextToken.type == TokenType.ARITHMETIC_BRACKET_CLOSE)
{
break;
}
if (nextToken.type != TokenType.PLUS)
{
throw new Exception("Expect \'+\' in line:" + i.ToString());
}
nextToken = GetNextToken(ref i, tree);
if (nextToken.type == TokenType.FUNCTION)
{
nextToken = ProcessFunction(tree, ref i, ref nextToken);
if (nextToken == null)
{
throw new Exception("Expected return value in function, Line:" + i);
}
}
}
}
else
if (type == TokenType.END_OP)
{
return;
}
else
{
throw new Exception("Somethin bad in Process");
}
}
}
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;
}
