private TypeNode ValueType()
{
TypeNode itsAST;
SourceCodePosition itsPos = _currentToken.SourcePosition;
if (_currentToken.Type == Token.TokenType.Int)
{
itsAST = new IntTypeNode(itsPos);
Accept(Token.TokenType.Int);
}
else if (_currentToken.Type == Token.TokenType.Real)
{
itsAST = new RealTypeNode(itsPos);
Accept(Token.TokenType.Real);
}
else if (_currentToken.Type == Token.TokenType.String)
{
itsAST = new StringTypeNode(itsPos);
Accept(Token.TokenType.String);
}
else
{
itsAST = new BooleanTypeNode(itsPos);
Accept(Token.TokenType.Boolean);
}
return(itsAST);
}
public BitwiseOrExpressionNode(ExpressionNode leftExpression, ExpressionNode exclusiveOrExpression,
Token token) : base(leftExpression, exclusiveOrExpression, token)
{
var t = new IntTypeNode();
rules[Utils.Char + "," + Utils.Char] = t;
rules[Utils.Char + "," + Utils.Int] = t;
rules[Utils.Int + "," + Utils.Char] = t;
rules[Utils.Int + "," + Utils.Int] = t;
}
public BitwiseAndExpressionNode(ExpressionNode leftExpression, ExpressionNode equalityExpression,
Token token) : base(leftExpression, equalityExpression, token)
{
var t = new IntTypeNode();
rules[Utils.Char + "," + Utils.Char] = t;
rules[Utils.Char + "," + Utils.Int] = t;
rules[Utils.Int + "," + Utils.Char] = t;
rules[Utils.Int + "," + Utils.Int] = t;
}
public ShiftExpressionNode(ExpressionNode leftExpression,
ExpressionNode additiveExpression, Token token) : base(leftExpression, additiveExpression, token)
{
var t = new IntTypeNode();
rules[Utils.Char + "," + Utils.Char] = t;
rules[Utils.Char + "," + Utils.Int] = t;
rules[Utils.Int + "," + Utils.Char] = t;
rules[Utils.Int + "," + Utils.Int] = t;
}
public ExclusiveOrExpression(ExpressionNode leftExpression, ExpressionNode bitsAnd, Token token) :
base(leftExpression, bitsAnd, token)
{
rules[Utils.Bool + "," + Utils.Bool] = new BoolTypeNode();
var t = new IntTypeNode();
rules[Utils.Char + "," + Utils.Char] = t;
rules[Utils.Char + "," + Utils.Int] = t;
rules[Utils.Int + "," + Utils.Char] = t;
rules[Utils.Int + "," + Utils.Int] = t;
}
public AdditiveExpressionNode(ExpressionNode leftExpression,
ExpressionNode multExpression, Token token) : base(leftExpression, multExpression, token)
{
var tInt = new IntTypeNode();
var tFloat = new FloatTypeNode();
rules[Utils.Int + "," + Utils.Int] = tInt;
rules[Utils.Int + "," + Utils.Char] = tInt;
rules[Utils.Char + "," + Utils.Int] = tInt;
rules[Utils.Char + "," + Utils.Char] = tInt;
rules[Utils.Float + "," + Utils.Int] = tFloat;
rules[Utils.Int + "," + Utils.Float] = tFloat;
rules[Utils.Float + "," + Utils.Float] = tFloat;
rules[Utils.Float + "," + Utils.Char] = tFloat;
rules[Utils.Char + "," + Utils.Float] = tFloat;
}
public MultipicativeExpressionNode(ExpressionNode leftExpression,
UnaryExpressionNode unaryExpression, Token token) : base(leftExpression, unaryExpression, token)
{
var tInt = new IntTypeNode();
var tFloat = new FloatTypeNode();
rules[Utils.Int + "," + Utils.Int] = tInt;
rules[Utils.Char + "," + Utils.Int] = tInt;
rules[Utils.Int + "," + Utils.Char] = tInt;
rules[Utils.Int + "," + Utils.Float] = tFloat;
rules[Utils.Float + "," + Utils.Int] = tFloat;
rules[Utils.Float + "," + Utils.Float] = tFloat;
rules[Utils.Float + "," + Utils.Char] = tFloat;
rules[Utils.Char + "," + Utils.Float] = tFloat;
rules[Utils.Char + "," + Utils.Char] = tInt;
}
public object Visit(IntTypeNode n, object o)
{
return(null);
}
public object Visit(IntTypeNode n, object o)
{
Append("int");
return(null);
}
