private AstItem ReadIndexerAssignment(TokenIterator tokens)
{
var name = tokens.PopExpected(TokenKind.Word);
tokens.PopExpected(TokenKind.SquareBracketOpen);
var indexExpression = ReadExpression(tokens, TokenKind.SquareBracketClose);
tokens.PopExpected(TokenKind.SquareBracketClose);
tokens.PopExpected(TokenKind.AssigmnentOperator);
var valueExpression = ReadExpression(tokens, TokenKind.SemiColon);
tokens.PopExpected(TokenKind.SemiColon);
return(AstItem.PointerIndexAssignment(name.Value, indexExpression, valueExpression));
}