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, 54 insertions, 0 deletions

diff --git a/tools/slang-cpp-extractor/diagnostic-defs.h b/tools/slang-cpp-extractor/diagnostic-defs.h
new file mode 100644
index 000000000..284e02d19
--- /dev/null
+++ b/tools/slang-cpp-extractor/diagnostic-defs.h
@@ -0,0 +1,54 @@
+//
+
+// 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, seeOpen, "see open $0")
+DIAGNOSTIC(-1, Note, commandLine, "Command line: $0")
+
+DIAGNOSTIC(1, Error, cannotOpenFile, "cannot open file '$0'.")
+
+DIAGNOSTIC(1, Error, extractorFailed, "C++ Extractor failed")
+DIAGNOSTIC(1, Error, internalError, "Unknown internal error in C++ Extractor, aborted!")
+
+// 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")
+DIAGNOSTIC(100009, Error, unexpectedUnbalancedToken, "Unexpected unbalanced token")
+DIAGNOSTIC(100010, Error, unexpectedEndOfFile, "Unexpected end of file")
+DIAGNOSTIC(100011, Error, expectingTypeKeyword, "Expecting type keyword - struct or class, found $0")
+
+DIAGNOSTIC(100011, Error, typeInDifferentTypeSet, "Type $0 in different type set $1 from super class $2")
+
+// 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