public VaribleDeclarationPart(TokensList tokensList)
{
Token token = tokensList.GetToken();
if (token.kind != Constants.VAR)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.VAR + " but took " + token.kind.ToString());
}
while (true)
{
token = tokensList.SeeToken();
if (token.kind == Constants.IDENTIFIER)
{
children.Add(new VaribleDeclaration(tokensList));
}
else
{
break;
}
}
token = tokensList.GetToken();
if (token.kind != Constants.ENDVAR)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.ENDVAR + " but took " + token.kind.ToString());
}
}
public IfStatment(TokensList tokensList)
{
Token token = tokensList.GetToken();
if (token.kind != Constants.IF)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.IF + " but took " + token.kind.ToString());
}
children.Add(new BoolStatment(tokensList));
token = tokensList.GetToken();
if (token.kind != Constants.THEN)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.THEN + " but took " + token.kind.ToString());
}
children.Add(new StatmentPart(tokensList));
token = tokensList.SeeToken();
if (token.kind == Constants.ELSE)
{
token = tokensList.GetToken();
//children.Add(token);
children.Add(new StatmentPart(tokensList));
}
token = tokensList.GetToken();
if (token.kind != Constants.ENDIF)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.ENDIF + " but took " + token.kind.ToString());
}
}
public MathExpression(TokensList tokensList)
{
children.Add(new Factor(tokensList));
while (true)
{
Boolean isOperator = false;
MathOperator mathOperator = new MathOperator(tokensList, ref isOperator);
if (mathOperator.getTokensList().Count > 0)
{
children.Add(mathOperator);
}
if (isOperator)
{
children.Add(new Factor(tokensList));
}
else
{
break;
}
}
if (children.Count > 3)
{
Token token = tokensList.SeeToken();
throw new System.Exception("Line " + token.lineNo.ToString() + " too long math expression ");
}
}
public WriteStatment(TokensList tokensList)
{
Token token = tokensList.GetToken();
if (token.kind != Constants.WRITE)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.WRITE + " but took " + token.kind.ToString());
}
token = tokensList.GetToken();
if (token.kind != Constants.FROM)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.FROM + " but took " + token.kind.ToString());
}
token = tokensList.SeeToken();
if (token.kind == Constants.IDENTIFIER)
{
children.Add(new VaribleStatment(tokensList));
}
else if (token.kind == Constants.MATH)
{
children.Add(new MathStatment(tokensList));
}
else
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.IDENTIFIER + " or " + Constants.MATH + " but took " + token.kind.ToString());
}
}
public AssignmentStatment(TokensList tokensList)
{
children.Add(new VaribleStatment(tokensList));
Token token = tokensList.GetToken();
if (token.kind != Constants.ASSIGN_OP)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.ASSIGN_OP + " but took " + token.kind.ToString());
}
token = tokensList.SeeToken();
if (token.kind == Constants.MATH)
{
children.Add(new MathStatment(tokensList));
}
else if (token.kind == Constants.BRACKET_L)
{
children.Add(new ArrayAssignment(tokensList));
}
else
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.MATH + " or " + Constants.BRACKET_L + " but took " + token.kind.ToString());
}
}
public VaribleStatment(TokensList tokensList)
{
Token token = tokensList.GetToken();
if (token.kind == Constants.IDENTIFIER)
{
children.Add(token);
}
else
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.IDENTIFIER + " but took " + token.kind.ToString());
}
token = tokensList.SeeToken();
if (token.kind == Constants.BRACKET_L)
{
token = tokensList.GetToken();
if (token.kind != Constants.BRACKET_L)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.BRACKET_L + " but took " + token.kind.ToString());
}
else
{
children.Add(token);
}
token = tokensList.GetToken();
if (token.kind == Constants.CONST_INT || token.kind == Constants.IDENTIFIER)
{
children.Add(token);
}
else
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.CONST_INT + " or " + Constants.IDENTIFIER + " but took " + token.kind.ToString());
}
token = tokensList.GetToken();
if (token.kind != Constants.BRACKET_R)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.BRACKET_R + " but took " + token.kind.ToString());
}
else
{
children.Add(token);
}
}
}
public Type(TokensList tokensList)
{
Token token = tokensList.SeeToken();
if (token.kind == Constants.INTARRAY)
{
children.Add(new ArrayType(tokensList));
}
else if (token.kind == Constants.INTEGER)
{
children.Add(new IntegerType(tokensList));
}
else
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.INTEGER + " or " + Constants.INTARRAY + " but took " + token.kind.ToString());
}
}
public Statment(TokensList tokensList)
{
Token token;
while (true)
{
token = tokensList.SeeToken();
if (token.kind == Constants.IDENTIFIER)
{
children.Add(new AssignmentStatment(tokensList));
}
else if (token.kind == Constants.READ)
{
children.Add(new ReadStatment(tokensList));
}
else if (token.kind == Constants.WRITE)
{
children.Add(new WriteStatment(tokensList));
}
else if (token.kind == Constants.IF)
{
children.Add(new IfStatment(tokensList));
}
else if (token.kind == Constants.WHILE)
{
children.Add(new WhileStatment(tokensList));
}
else if (token.kind == Constants.MATH)
{
children.Add(new MathStatment(tokensList));
}
else
{
break;
}
token = tokensList.GetToken();
if (token.kind != Constants.SEMICOLON)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.SEMICOLON + " but took " + token.kind.ToString());
}
}
}
public ArrayAssignment(TokensList tokensList)
{
Token token = tokensList.GetToken();
if (token.kind != Constants.BRACKET_L)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.BRACKET_L + " but took " + token.kind.ToString());
}
while (true)
{
token = tokensList.GetToken();
if (token.kind == Constants.CONST_INT)
{
children.Add(token);
}
else
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.CONST_INT + " but took " + token.kind.ToString());
}
token = tokensList.SeeToken();
if (token.kind == Constants.COMMA)
{
token = tokensList.GetToken();
//children.Add(token);
}
else
{
break;
}
}
token = tokensList.GetToken();
if (token.kind != Constants.BRACKET_R)
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.BRACKET_R + " but took " + token.kind.ToString());
}
}
public MathOperator(TokensList tokensList, ref Boolean isOperator)
{
Token token = tokensList.SeeToken();
if (token.kind == Constants.MINUS || token.kind == Constants.PLUS ||
token.kind == Constants.MULT || token.kind == Constants.DIV || token.kind == Constants.MOD)
{
isOperator = true;
token = tokensList.GetToken();
children.Add(token);
}
else
{
if (token.kind == Constants.PARANTHESIS_R)
{
isOperator = false;
}
else
{
throw new System.Exception("Line " + token.lineNo.ToString() + " : expected " + Constants.MATH_OPERATOR + " but took " + token.kind.ToString());
}
}
}
