Splitting up C++ extractor (#1800)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Refactor out ClassLikeNode

* WIP around ScopeNode.

* Use push and popScope.

* Small improvements around C++ extractor.

* Adding dynamic casting support.

* Made Field another Node type.

* Disable command line dumping by default.

* Removed comment.

* Fix shadowed variable bug found on linux.

* Split out node.

* Renamed C++ extractor diagnostics to just diagnostics.cpp/.h

* Remove C++ extractor Options into separate options.cpp/options.h files.

* Split out parser and identifier lookup from C++ extractor.

* Put in CppExtract namespace.
Simplify some of the class names.

* Some simple renaming.

* Split out NodeTree from Parser.

1 files changed, 60 insertions, 0 deletions

diff --git a/tools/slang-cpp-extractor/options.h b/tools/slang-cpp-extractor/options.h
new file mode 100644
index 000000000..ff88a3974
--- /dev/null
+++ b/tools/slang-cpp-extractor/options.h
@@ -0,0 +1,60 @@
+#ifndef CPP_EXTRACT_OPTIONS_H
+#define CPP_EXTRACT_OPTIONS_H
+
+#include "../../source/slang/slang-diagnostics.h"
+
+namespace CppExtract {
+using namespace Slang;
+
+
+// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Options !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+struct Options
+{
+    void reset()
+    {
+        *this = Options();
+    }
+
+    Options()
+    {
+        m_markPrefix = "SLANG_";
+        m_markSuffix = "_CLASS";
+    }
+
+    bool m_defs = false;            ///< If set will output a '-defs.h' file for each of the input files, that corresponds to previous defs files (although doesn't have fields/RAW)
+    bool m_dump = false;            ///< If true will dump to stderr the types/fields and hierarchy it extracted
+
+    bool m_outputFields = false;     ///< When dumping macros also dump field definitions
+
+    List<String> m_inputPaths;      ///< The input paths to the files to be processed
+
+    String m_outputPath;            ///< The output path. Note that the extractor can generate multiple output files, and this will actually be the 'stem' of several files
+
+    String m_inputDirectory;        ///< The input directory that is by default used for reading m_inputPaths from. 
+    String m_markPrefix;            ///< The prefix of the 'marker' used to identify a reflected type
+    String m_markSuffix;            ///< The postfix of the 'marker' used to identify a reflected type
+    String m_stripFilePrefix;       ///< Used for the 'origin' information, this is stripped from the source filename, and the remainder of the filename (without extension) is 'macroized'
+};
+
+struct OptionsParser
+{
+    /// Parse the parameters. NOTE! Must have the program path removed
+    SlangResult parse(int argc, const char*const* argv, DiagnosticSink* sink, Options& outOptions);
+
+    SlangResult _parseArgWithValue(const char* option, String& outValue);
+    SlangResult _parseArgReplaceValue(const char* option, String& outValue);
+    SlangResult _parseArgFlag(const char* option, bool& outFlag);
+
+    String m_reflectType;
+
+    Index m_index;
+    Int m_argCount;
+    const char*const* m_args;
+    DiagnosticSink* m_sink;
+};
+
+
+} // CppExtract
+
+#endif