C++ Extractor (#1337)

* WIP: Doing texing using slangs lexer for cpp-extractor

* Node tree for C++ extraction.

* Bug fixing.
Add dump of hierarchy.

* First pass at extracting fields.

* Parse template types.

* Use diagnostics defs for C++ extractor.

* Simplify Diagnostic Defs.

* Remove the brace stack.

* Added IdentifierLookup.

* Add handling for >> style template close.

* Improved identifier handling/keywords.

* Added ability to check if reader is at cursor position.

* Handling of an unspecified root type.

* Parsing code comments.
Tidy up some parsing - to use advanceIf functions more.

* Improve path handling.

* Fixes around changes to Path interface.

* Working Range, Type and Scope header.

* Extract the middle part of marker and put in output. Gives more flexibility at macro injection, and in class definitions.

* Split DERIVED types into it's own macro, to provide way to generate for derived types.

* Fix clang/g++ compile issue.

* Tabs -> spaces.

* Fix small bug in getFileNameWithoutExt

* Small improvement around naming.

Co-authored-by: Tim Foley <tfoleyNV@users.noreply.github.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/tools/slang-cpp-extractor/slang-cpp-extractor-diagnostic-defs.h b/tools/slang-cpp-extractor/slang-cpp-extractor-diagnostic-defs.h
new file mode 100644
index 000000000..715f74c23
--- /dev/null
+++ b/tools/slang-cpp-extractor/slang-cpp-extractor-diagnostic-defs.h
@@ -0,0 +1,45 @@
+//
+
+// The file is meant to be included multiple times, to produce different
+// pieces of declaration/definition code related to diagnostic messages
+//
+// Each diagnostic is declared here with:
+//
+//     DIAGNOSTIC(id, severity, name, messageFormat)
+//
+// Where `id` is the unique diagnostic ID, `severity` is the default
+// severity (from the `Severity` enum), `name` is a name used to refer
+// to this diagnostic from code, and `messageFormat` is the default
+// (non-localized) message for the diagnostic, with placeholders
+// for any arguments.
+
+#ifndef DIAGNOSTIC
+#error Need to #define DIAGNOSTIC(...) before including "slang-cpp-extractor-diagnostics-defs.h"
+#define DIAGNOSTIC(id, severity, name, messageFormat) /* */
+#endif
+
+DIAGNOSTIC(-1, Note, seeDeclarationOf, "see declaration of '$0'")
+DIAGNOSTIC(-1, Note, seeOpenBrace, "see open brace")
+
+DIAGNOSTIC(1, Error, cannotOpenFile, "cannot open file '$0'.")
+
+// Parsing errors
+DIAGNOSTIC(100000, Error, expectingToken, "Expecting token $0")
+DIAGNOSTIC(100001, Error, typeAlreadyDeclared, "Type '$0' already declared")
+DIAGNOSTIC(100002, Error, scopeNotClosed, "Scope not closed")
+DIAGNOSTIC(100003, Error, typeNameDoesntMatch, "Type name doesn't match $0")
+DIAGNOSTIC(100004, Error, didntFindMatchingBrace, "Didn't find brace matching $0")
+DIAGNOSTIC(100005, Error, braceOpenAtEndOfFile, "Brace open at file end")
+DIAGNOSTIC(100006, Error, unexpectedTemplateClose, "Unexpected template close")
+DIAGNOSTIC(100007, Error, superTypeNotFound, "Super type not found for $0")
+DIAGNOSTIC(100008, Error, superTypeNotAType, "Named super type is not a type $0")
+
+// Command line errors 100100
+
+DIAGNOSTIC(100101, Error, optionAlreadyDefined, "Option '$0' is already defined '$1'")
+DIAGNOSTIC(100102, Error, requireValueAfterOption, "Require a value after $0 option")
+DIAGNOSTIC(100103, Error, unknownOption, "Unknown option '$0'")
+DIAGNOSTIC(100104, Error, noInputPathsSpecified, "No input paths specified")
+DIAGNOSTIC(100105, Error, noOutputPathSpecified, "No -o output path specified")
+
+#undef DIAGNOSTIC