public static T Parse(string query, IExpressionBuilder <T> expressionBuilder)
{
var lexer = new RsqlLexer(new AntlrInputStream(query));
var tokenStream = new CommonTokenStream(lexer);
var rsqlParser = new RsqlParser(tokenStream);
var tree = rsqlParser.expression();
var rsqlStatement = new RsqlExpressionVisitor <T>(expressionBuilder).Visit(tree);
return(rsqlStatement);
}
public static Expression <Func <T, bool> > GetRsqlPredicate <T>(string?rsql, ComparisonBuilder comparisonBuilder)
{
comparisonBuilder = comparisonBuilder ?? throw new ArgumentNullException(nameof(comparisonBuilder));
if (string.IsNullOrWhiteSpace(rsql))
{
throw new ArgumentNullException(nameof(rsql));
}
var antlrInputStream = new AntlrInputStream(rsql);
var lexer = new RsqlLexer(antlrInputStream);
var commonTokenStream = new CommonTokenStream(lexer);
var parser = new RsqlParser(commonTokenStream);
var visitor = new RsqlVisitor <T>(comparisonBuilder);
var predicate = visitor.Visit(parser.start());
return(predicate);
}