The runtime folder now contains the individual project files for each platform (and associated files/folders). The actual source code moved down one level to folder src.
The default install name is /usr/libs/antlrcpp.dylib which makes running the demo from command line not working (location and install name of the dylib differ). Since the probability that the lib is placed in an app bundle is much higher than that the lib is being installed in the system, the default has been changed to just the dylib name. This can be changed to anything else if needed in a concrete project.
- Updated XCode project (removed obsolete cpp files refs).
- Set channel datatype in lexer + tokens to size_t.
- Removed one unit test that no longer works, now that we require all objects in a vector given to murmur hash code computation to support the hashCode() function.
One of the lambdas used in a "finally" expression executed already while defining the "finally" instance, which is way too early of course (others did not show this behavior), which happens only with the Visual Studio compiler, not clang. By changing the capture list to a general reference capture things started working as they should.
Removed a few unneeded cpp files on the way.
Note: building as DLL produces many of the well known compiler warnings C4251 (type needs to have a DLL interface ..) because the runtime uses many STL classes in exported classes. I tried exporting all those types via explicit template instantion, but once I hit unordered_map I gave up. Just crazy what you have to export just to make this map export properly (and I already had like 50 exports already in place). So at the end I disabled this warning on project level. So make sure you build this DLL and all binaries using it with exact the same compiler and linker settings (same C++ runtime etc.).
Sometimes in the prediction process temporary ATNConfig instances are created which either share their prediction context with other configs or get a new context which receives the context of another config as parent. Later in the process such temporary configs are released, but the set parent prediction context should stay alive as it is used later. Since there is no top level structure that would keep them alive we need a way to make them stay. For this effect the SinglePredictionContext (which is the only prediction context that keeps a parent reference) uses a shared_ptr instead of a weak_ptr for the parent reference.
- Changed the empty return state PredictionContext to max int (instead fixing it on int 16), like it's done in the Java runtime.
- Converted 2 static init lambdas in the Cpp.stg to normal code, as VS doesn't allow us to access private class members in such lambdas.
We can certainly revert to simple locks, but then have to do synchronization differently than the Java target does, which is not in the scope of the current work.
- Finished adding all new ATN related classes (e.g. profiling infos, lexer actions).
- Introduced a global Ref<X> alias for std::shared_ptr<X>. The previous approach (defining a type individually for each class led to cyclic #includes).
- Converted all ::Ref typedefs and uses to the new Ref template (+ a number of std::shared_ptr<> occurances). Work in progress still, all those occurences will be converted for 100% consistency.
- Removed rules no longer used in the Cpp.stg.
- Removed CppTarget.java in old place.
- Converted + added most new LexerAction* classes to XCode project.
- Added changes to a number of classes.
- Class ATN is currently leaking states (delete disabled in d-tor) until I have found a solution for the failing return value optimization from ATNDeserializer::deserialize().
- Added member init in BlockEndState.
Originally the serialized ATN was coded as a wide string literal with embeded Unicode escapes (where necessary). This might fail on Windows however, as VS is very strict when checking Unicode code points and rejects compilation if it finds undefined code points. Hence this generation has been changed to hex numbers instead of that string literal.
- Solved all compilation issues. Updated the antlr4cpp library project. At the moment we only build a static lib. Need to add exports for a DLL. Since we want this library to be compatible with VS 2013 still, we cannot use std::rethrow_with_nested(), hence we do a simple unnested throw in such cases. Starting with VS 2015 this works fully then.
- Added demo application.
- Added parser generation script.
- The needed ANTLR jar is provided now, so it's not needed to build it yourself.
- The generate.sh script has been updated to use the new jar.
- Small update of the readme too.
- All allocations are now checked for proper deallocation.
- Ran LLVM analyzer over the runtime but it found mostly valid stuff and did not find non-freed allocations I left undeleted by intention. So it's not worth much.
- Added move and copy assignment operator overloading, as well as a copy c-tor to ATN class to avoid a copy (and to be able to free content properly) after deserialization.
- Some clean up.
- Removed ultra simple test grammar + parser. No longer needed.
- Removed long list of keywords from (regular) test grammar.
- Fixed a number of toString() methods to get better debug output.
- Moved Ref typedefs from Declarations.h to the individual classes as defining them on the forward declarations totally confuses the XCode debugger.
- Removed reference to the owning ATN in an ATNState. We cannot guarantee to have the correct address there due to the way the states are created. The reference is not needed anyway.
- ATNDeserializationOptions now has verifyATN set by default (as in the Java target).
- Had to add a workaround for a weird situation: static initialization in ATNDeseralizer stopped working for no apparent reason. Need to investigate this.
- Added a few support methods to the CPPUtils, mostly to ease debug output creation.
- Added console listener by default to the listeners list (as done in the Java target).
- Fixed translation mistakes in the CommonTokenStream class.
- Fixed some memory leaks and exception handling bugs.
- Removed a few unused classes.
- More raw pointers to smart pointers conversion: RuleContext, ParserRuleContext, ParseTree, Token, ParseTreeWalker, Tree...
- BitSet is now used directly instead of all those dynamic allocations and is a derived class instead of a composite.
- Replced ATNState equals with == operator overload.
- Correct wrong iterator over ATNConfigsets.
- Added utilitiy function that mimics Java's generic toString().
- Exceptions are now consistently thrown by value and captured by reference. C++11 exception_ptr and nested_exception are used when exception references are neeeded or when implementing the equivalent of Java's nesting.
- The is<> helper didn't handle properly (const) references, which is now explicitly handled. Added new unit tests for that.
- Fixed a number of places where a catch all was used to implement a "finally" (which hides exceptions).
- Changed exceptions to hold (temporary) raw pointers instead of shared pointers, as otherwise it is tried to free wrapped pointers which might just be references to static objects. Might later be updated again when we continue with removing raw pointers.
- Some smaller fixes.
- The generated simple parser now runs through without any error (yet, it doesn't do anything useful).
- ANTLR C++ target template:
- Added getListener and genVisitor bool members to ANTLR's LexerFile + ParserFile classes, so can use them in the template.
- Made addition of listener #include dependent on the new genListener member, which allows to run parser generation without listeners/visitors.
- Added an even simpler grammar to ease debugging while getting the lib into a working state.
- Added helper template is<> to ease frequent type checks (for value types, ref types and shared_ptr). Added some unit tests for that as well.
- Changed the MurmurHash::hashCode() function to take shared_ptr as this is the only variant we need. Had to change the MurmurHash unit tests for that.
- Removed conflicting IntStream::_EOF (and other variants). We use the C runtime EOF value instead.
- Changed all references to semantic contexts, prediction context and the prediction context cache to use shared_ptr<>. Created *Ref typedefs to simplify usage.
- Adjusted the C++ string templates for that.
- Fixed a number of memory leaks + some cleanup.
- Reworked the exception hierarchy to conform with the Java hierarchy (where we mimic that). Ultimative base class is std::exception, which uses std::string (char* actually) for messages, so all exceptions use std::string for that as well. Consider that as first step to rework the entire lib to use std::string instead of std::wstring (with utf-8 for full Unicode support).
- Removed ASSERTException + TODOException and fixed the places where they were used.
- Removed ANTLRException, which was only an intermediate layer without an equivalent on Java side.
- Replaced some equals() calls by == (with defined operator overloading).
- Enhanced Arrays::equals() to ensure it compiles only if the actual types being compared support the != operator (both value + reference types).
- Made the Recognizer class template free by using plain polymorphism. Some adjustments were need also in the Cpp template to support that. Could convert the .inl file to .cpp then.
Mike Lischke
Mike Lischke
Terence Parr