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 QueryCompilationListener(
IQueryFactory queryFactory,
QueryCompiler compiler,
IQueryErrorListener errorListener,
IRuntime runtime,
QueryCompilationParameters parameters)
{
_queryFactory = queryFactory;
_compiler = compiler;
_errorListener = errorListener;
_runtime = runtime;
_parameters = parameters;
}
/// <summary>
/// Create a new parameters for recursive compilation of <paramref name="newViewName"/>
/// </summary>
/// <param name="newViewName">
/// Name of the view which will be compiled using these parameters.
/// </param>
/// <returns></returns>
public QueryCompilationParameters Create(string newViewName)
{
if (ViewName != null)
{
Parent[ViewName] = newViewName;
}
var result = new QueryCompilationParameters
{
ViewName = newViewName,
Parent = Parent
};
return(result);
}
