Enhanced C++ extractor (#1340)

* Extractor builds without any reference to syntax (as it will be helping to produce this!).

* Change macros to include the super class.

* Added indexOf(const UnownedSubString& in) to UnownedSubString.
Refactored extractor
* Output a macro for each type with the extracted info - can be used during injection in class
* Simplify the header file - as can get super type and last from macro now
* Store the 'origin' of a definition

* Some small tidy ups to the extractor.

* Improve comments on the extractor options.

* Made CPPExtractor own SourceOrigins

* Small fixes around SourceOrigin.

* Small tidy up around macroOrign

1 files changed, 16 insertions, 0 deletions

diff --git a/source/slang/slang-syntax.h b/source/slang/slang-syntax.h
index ff5da913f..5e1f057e4 100644
--- a/source/slang/slang-syntax.h
+++ b/source/slang/slang-syntax.h
@@ -33,6 +33,22 @@ namespace Slang
     class Parser;
     class SyntaxNode;
 
+    class Decl;
+    struct QualType;
+    class Type;
+    struct TypeExp;
+    class Val;
+
+    void printDiagnosticArg(StringBuilder& sb, Decl* decl);
+    void printDiagnosticArg(StringBuilder& sb, Type* type);
+    void printDiagnosticArg(StringBuilder& sb, TypeExp const& type);
+    void printDiagnosticArg(StringBuilder& sb, QualType const& type);
+    void printDiagnosticArg(StringBuilder& sb, Val* val);
+
+    class SyntaxNode;
+    SourceLoc const& getDiagnosticPos(SyntaxNode const* syntax);
+    SourceLoc const& getDiagnosticPos(TypeExp const& typeExp);
+
     typedef RefPtr<RefObject> (*SyntaxParseCallback)(Parser* parser, void* userData);
 
     typedef unsigned int ConversionCost;