internal IExecutableQuery Compile(
TextReader inputQuery,
IQueryErrorListener queryErrorListener,
QueryCompilationParameters parameters)
{
// create all necessary components to parse a query
var input = new AntlrInputStream(inputQuery);
var lexer = new QueryLexer(input);
lexer.AddErrorListener(new LexerErrorListener(queryErrorListener));
var compiler = new QueryCompilationListener(
_queryFactory,
this,
queryErrorListener,
_runtime,
parameters);
var tokenStream = new CommonTokenStream(lexer);
var errorListener = new ParserErrorListener(queryErrorListener);
var parser = new QueryParser(tokenStream);
parser.AddErrorListener(errorListener);
// parse and compile the query
if (!parameters.IsRecursiveCall)
{
queryErrorListener.BeforeCompilation();
}
IQuery result;
try
{
var tree = parser.entry();
ParseTreeWalker.Default.Walk(compiler, tree);
result = compiler.Finish();
if (result == null)
{
return(null);
}
result = result.WithText(input.ToString());
}
catch (ParseCanceledException)
{
// an error has already been reported
return(null);
}
finally
{
if (!parameters.IsRecursiveCall)
{
queryErrorListener.AfterCompilation();
}
}
return(result);
}
public static QueryParser.ProgramContext Parse(string query)
{
var lexer = new QueryLexer(new AntlrInputStream(query));
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new ThrowingErrorListener <int>());
var parser = new QueryParser(new CommonTokenStream(lexer));
parser.RemoveErrorListeners();
parser.AddErrorListener(new ThrowingErrorListener <IToken>());
return(parser.program());
}