private ExpressionNode ParsePrimaryExpression()
{
ExpressionNode node = null;
TokenId startToken = _curtok.TokenId;
switch (_curtok.TokenId)
{
case TokenId.Null:
{
node = new NullPrimitive(_curtok);
Advance();
break;
}
case TokenId.True:
{
node = new BooleanPrimitive(true, _curtok);
Advance();
break;
}
case TokenId.False:
{
node = new BooleanPrimitive(false, _curtok);
Advance();
break;
}
case TokenId.Int:
{
node = new IntegralPrimitive(_curtok);
Advance();
break;
}
case TokenId.Double:
{
node = new DoublePrimitive(_curtok);
Advance();
break;
}
case TokenId.String:
{
node = new StringPrimitive(_curtok);
Advance();
break;
}
case TokenId.Quote:
{
node = new QuotePrimitive(_curtok);
Advance();
break;
}
case TokenId.Ident:
{
node = new IdentifierExpression(_curtok);
Advance();
break;
}
case TokenId.LParen:
{
Advance();
node = new ParenthesizedExpression(ParseExpression());
AssertAndAdvance(TokenId.RParen);
break;
}
case TokenId.LBracket:
{
node = ParseArrayCreation();
AssertAndAdvance(TokenId.RBracket);
break;
}
case TokenId.LCurly:
{
node = ParseDictionaryCreation();
AssertAndAdvance(TokenId.RCurly);
break;
}
default:
{
throw new ParseException("Unhandled case in ParseExpression " + _curtok.TokenId);
}
}
return node;
}
private ExpressionNode ParseMember()
{
ExpressionNode result = new IdentifierExpression(_curtok);
AssertAndAdvance(TokenId.Ident);
return result;
}