Handling imported/exporting symbols from serialized modules (#1589)

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

* Fix handling of access modifiers inside type definition.

* Fix access problem for AST node.
Make dumping produce a single function with switch, to potentially make available without Dump specific access.

* WIP on serialization design doc.

* Remove project references to previously generated files.

* More docs on serialization design.

* Improve serialization documentation.
Remove unused function from IRSerialReader.

* Small fixes around naming. Remove long comment from slang-serialize.h - as covered in serialization.md

* Remove long comment in slang-serialize.h as covered in serialization.md

* More information about doing replacements on read for AST and problems surrounding.

* Typo fix.

* Spelling fixes.

* Value serialize.

* Value types with inheritence.

* Use value reflection serial conversion for more AST types

* Use automatic serialization on more of AST.

* Get the types via decltype, simplifies what the extractor has to do.

* Update the serialization.md for the value serialization.

* Small doc improvements.

* Update project.

* Remove ImportExternalDecl type
Added addImportSymbol and ImportSymbol type
Fixed bug in container which meant it wouldn't read back AST module

* Because of change of how imports and handled, store objects as SerialPointers.

* First pass symbol lookup from mangled names.

* Cache current module looked up from mangled name.

* Fix SourceLoc bug.
Improve comments.

* Added diagnostic on mangled symbol not being found

* Fix typo.

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

1 files changed, 20 insertions, 12 deletions

diff --git a/source/slang/slang-mangled-lexer.h b/source/slang/slang-mangled-lexer.h
index 6c8060cfd..7d096e45e 100644
--- a/source/slang/slang-mangled-lexer.h
+++ b/source/slang/slang-mangled-lexer.h
@@ -3,6 +3,7 @@
 #define SLANG_MANGLED_LEXER_H_INCLUDED
 
 #include "../core/slang-basic.h"
+#include "../core/slang-char-util.h"
 
 #include "slang-compiler.h"
 
@@ -41,6 +42,12 @@ public:
 
     UInt readParamCount();
 
+        /// Returns the character at the current position
+    char peekChar() { return *m_cursor; }
+        // Returns the current character and moves to next character.
+    char nextChar() { return *m_cursor++; }
+
+    
         /// Ctor
     SLANG_FORCE_INLINE MangledLexer(const UnownedStringSlice& slice);
 
@@ -50,13 +57,6 @@ private:
     // to strip off the main prefix
     void _start() { _expect("_S"); }
 
-    static bool _isDigit(char c) { return (c >= '0') && (c <= '9'); }
-
-        /// Returns the character at the current position
-    char _peek() { return *m_cursor; }
-        // Returns the current character and moves to next character.
-    char _next() { return *m_cursor++; }
-
     SLANG_INLINE void _expect(char c);
 
     void _expect(char const* str)
@@ -82,10 +82,10 @@ SLANG_FORCE_INLINE MangledLexer::MangledLexer(const UnownedStringSlice& slice)
 // ---------------------------------------------------------------------------
 SLANG_INLINE void MangledLexer::readSimpleIntVal()
 {
-    int c = _peek();
-    if (_isDigit((char)c))
+    int c = peekChar();
+    if (CharUtil::isDigit((char)c))
     {
-        _next();
+        nextChar();
     }
     else
     {
@@ -110,9 +110,9 @@ SLANG_INLINE void MangledLexer::readExtensionSpec()
 // ---------------------------------------------------------------------------
 SLANG_INLINE void MangledLexer::_expect(char c)
 {
-    if (_peek() == c)
+    if (peekChar() == c)
     {
-        _next();
+        nextChar();
     }
     else
     {
@@ -121,5 +121,13 @@ SLANG_INLINE void MangledLexer::_expect(char c)
     }
 }
 
+// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! MangledNameParser !!!!!!!!!!!!!!!!!!!!!!!!!!
+
+struct MangledNameParser
+{
+        /// Tries to extract the module name from this mangled name. 
+    static SlangResult parseModuleName(const UnownedStringSlice& in, UnownedStringSlice& outModuleName);
+};
+
 }
 #endif