public void ParseObjectiveC()
{
var inputStream = new AntlrInputStream(
@"@interface MyObject : NSObject {
int val;
id obj;
}
+ (void)classMethod:(id)arg;
- (id)method:(NSObject*)arg1 with:(int)arg2;
@end");
var lexer = new ObjectiveCLexer(inputStream);
var commonTokenStream = new CommonTokenStream(lexer);
var parser = new ObjectiveCParser(commonTokenStream);
var visitor = new CstBuilderForAntlr4(parser);
visitor.Visit(parser.translationUnit());
Console.WriteLine(visitor.FinishParsing());
}
private void Process(string input)
{
if (string.IsNullOrWhiteSpace(input))
{
return;
}
var sw = Stopwatch.StartNew();
var lexer = new ObjectiveCLexer(new AntlrInputStream(File.ReadAllText(input)));
var tokenStream = new CommonTokenStream(lexer);
tokenStream.Fill();
var errorHandler = new AntlrErrorStrategy();
var parser = new ObjectiveCParser(tokenStream)
{
BuildParseTree = true,
ErrorHandler = errorHandler
};
ParserRuleContext tree = parser.translationUnit();
var tokenSymbolicNames = (string[])lexer.GetType().GetField("_SymbolicNames", BindingFlags.Static | BindingFlags.NonPublic).GetValue(lexer);
var tokens = GetTokens(tokenStream, tokenSymbolicNames);
var errorStatus = errorHandler.HasErrors ?
$"Parser Error at {string.Join(Environment.NewLine, errorHandler.OffendingTokens.Select(t => TokenToString(t, tokenSymbolicNames)))}" :
"No Errors";
ErrorStatus.Text = $"Elapsed: {sw.Elapsed.TotalSeconds}s" + Environment.NewLine + errorStatus;
var count = GetTreeChildCount(tree);
var criteria = count <= 500;
Tree = criteria ? tree : ParserRuleContext.EmptyContext;
Parser = parser;
LexerSymbolicNames = tokenSymbolicNames;
LexerTokens = tokens;
}
public void ParseObjectiveC() {
var inputStream = new AntlrInputStream(
@"@interface MyObject : NSObject {
int val;
id obj;
}
+ (void)classMethod:(id)arg;
- (id)method:(NSObject*)arg1 with:(int)arg2;
@end");
var lexer = new ObjectiveCLexer(inputStream);
var commonTokenStream = new CommonTokenStream(lexer);
var parser = new ObjectiveCParser(commonTokenStream);
var visitor = new CstBuilderForAntlr4(parser);
visitor.Visit(parser.translationUnit());
Console.WriteLine(visitor.FinishParsing());
}
