Add embeddir finally and embedstrm

CMakeLists.txt

@@ -154,6 +154,7 @@ src/runtime_methods/path.cpp
 src/runtime_methods/env.cpp
 src/runtime_methods/process.cpp
 src/runtime_methods/helpers.cpp
+src/types/embed.cpp
 src/types/async.cpp
 src/types/associativearray.cpp
 src/types/any.cpp
@@ -173,6 +174,7 @@ src/vm/filereader.cpp
 src/vm/gc.cpp
 src/vm/gclist.cpp
 src/vm/vm.cpp
+src/vm/exception.cpp
 src/archive.cpp
 src/markedtobject.cpp
 )

include/CrossLang.hpp

@@ -661,7 +661,10 @@ typedef enum {
     JMPIFBREAK,
     JMPIFCONTINUE,
     JMPIFDEFINED,
-    DECLARECONSTVARIABLE
+    DECLARECONSTVARIABLE,
+    LINEINFO,
+    PUSHRESOURCESTREAM,
+    PUSHRESOUURCEDIR
 } Instruction;
 /**
  * @brief Base type for bytecode instruction
@@ -761,6 +764,13 @@ class EmbedInstruction : public ByteCodeInstruction {
         size_t Size();
         void Write(std::vector<uint8_t>& data);
 };
+class EmbedStreamInstruction : public ByteCodeInstruction {
+    public:
+        uint32_t n;
+        EmbedStreamInstruction(uint32_t n);
+        size_t Size();
+        void Write(std::vector<uint8_t>& data);
+};
 
 class ClosureInstruction : public ByteCodeInstruction {
     public:
@@ -866,6 +876,7 @@ class CodeGen {
     void GenNode(std::vector<ByteCodeInstruction*>& instructions, SyntaxNode n,int32_t scope, int32_t contscope, int32_t brkscope, int32_t contI, int32_t brkI);
     void GenPop(std::vector<ByteCodeInstruction*>& instrs,SyntaxNode n);
     public:
+        std::shared_ptr<Tesses::Framework::Filesystem::VFS> embedFS;
         std::vector<std::pair<std::string, TVMVersion>> dependencies;
         std::vector<std::pair<std::string, TVMVersion>> tools;
         TVMVersion version;
@@ -873,7 +884,7 @@ class CodeGen {
         std::string info;
         std::string icon;
         void GenRoot(SyntaxNode n);
-        void Save(std::shared_ptr<Tesses::Framework::Filesystem::VFS> embedFS,std::shared_ptr<Tesses::Framework::Streams::Stream> output);
+        void Save(std::shared_ptr<Tesses::Framework::Streams::Stream> output);
         ~CodeGen();
 };
 /**
@@ -882,10 +893,20 @@ class CodeGen {
  */
 constexpr std::string_view HtmlRootExpression = "htmlRootExpression";
 /**
- * @brief an intrinsic function that embeads a resource from the filename based on the constant string argument
+ * @brief an intrinsic function that embeds a resource from the filename based on the constant string argument
  * 
  */
 constexpr std::string_view EmbedExpression = "embedExpression";
+/**
+ * @brief an intrinsic function that embeds a resource as a stream from the filename based on the constant string argument
+ * 
+ */
+constexpr std::string_view EmbedStreamExpression = "embedStreamExpression";
+/**
+ * @brief an intrinsic function that embeds a resource directory from the directory name based on the constant string argument
+ * 
+ */
+constexpr std::string_view EmbedDirectoryExpression = "embedDirectoryExpression";
 /**
  * @brief Negative operator -EXPR
  * 
@@ -1239,6 +1260,10 @@ constexpr std::string_view AwaitExpression = "awaitExpression";
  * @brief ?? operator
  */
 constexpr std::string_view NullCoalescingExpression = "nullCoalescingExpression";
+/**
+ * @brief For debugging (store line info and filename)
+ */
+constexpr std::string_view LineNode="lineNode";
 /**
  * @brief Advanced AST node
  * 
@@ -1315,8 +1340,11 @@ class Parser {
     void ParseHtml(std::vector<SyntaxNode>& nodes,std::string var);
     GC* gc;
     TRootEnvironment* env;
+    int lastLine=-1;
+    std::string lastFile="";
+    bool CanEmit(LexTokenLineInfo& token);
     public:
-        
+        bool debug=true;
         /**
          * @brief Construct a new Parser object
          * 
@@ -1455,6 +1483,7 @@ class GC {
             TFile* file;
             std::vector<uint8_t> code;
             std::vector<std::string> args;
+            std::optional<std::string> name;
             void Mark();
     };
     
@@ -1642,6 +1671,7 @@ class GC {
             void DeclareFunction(GC* gc,std::string key,std::string documentation, std::vector<std::string> argNames, std::function<TObject(GCList& ls, std::vector<TObject> args)> cb,std::function<void()> destroy);
             void DeclareFunction(GC& gc,std::string key,std::string documentation, std::vector<std::string> argNames, std::function<TObject(GCList& ls, std::vector<TObject> args)> cb,std::function<void()> destroy);
             TObject CallMethod(GCList& ls, std::string key, std::vector<TObject> args);
+            TObject CallMethodWithFatalError(GCList& ls, std::string key, std::vector<TObject> args);
     };
 
    
@@ -1655,9 +1685,12 @@ class GC {
             TObject tag;
             std::string documentation;
             virtual TObject Call(GCList& ls,std::vector<TObject> args)=0;
+            TObject CallWithFatalError(GCList& ls, std::vector<TObject> args);
             virtual void Mark();
     };
 
+    void ThrowFatalError(std::exception& ex);
+
     void ThrowConstError(std::string key);
 
     class TEnvironment : public THeapObject {
@@ -1694,7 +1727,7 @@ class GC {
             void DeclareFunction(GC* gc,std::string key,std::string documentation, std::vector<std::string> argNames, std::function<TObject(GCList& ls, std::vector<TObject> args)> cb,std::function<void()> destroy);
             void DeclareFunction(GC& gc,std::string key,std::string documentation, std::vector<std::string> argNames, std::function<TObject(GCList& ls, std::vector<TObject> args)> cb,std::function<void()> destroy);
             TObject CallFunction(GCList& ls, std::string key, std::vector<TObject> args);
-    
+            TObject CallFunctionWithFatalError(GCList& ls, std::string key, std::vector<TObject> args);
     };
     class TClassEnvironment;
     class TClassObject : public THeapObject 
@@ -2048,6 +2081,8 @@ class GC {
             ~TObjectStream();
     };
 
+    
+
     class TObjectHttpServer : public Tesses::Framework::Http::IHttpServer
     {
         public:
@@ -2134,18 +2169,21 @@ class GC {
 
             ~TDynamicDictionary();
     };
-
+    class InterperterThread;
     
     class CallStackEntry : public THeapObject
     {
         public:
             static CallStackEntry* Create(GCList* ls);
             static CallStackEntry* Create(GCList& ls);
+            InterperterThread* thread;
             std::vector<TObject> stack;
             TEnvironment* env;
             TClosure* callable;
             uint32_t ip;
             uint32_t scopes; 
+            int64_t srcline;
+            std::string srcfile;
             bool mustReturn;
             
             void Mark();
@@ -2262,6 +2300,9 @@ class GC {
             bool PushContinue(GC* gc);
             bool JumpIfBreak(GC* gc);
             bool JumpIfContinue(GC* gc);
+            bool LineInfo(GC* gc);
+            bool PushResourceStream(GC* gc);
+            bool PushResourceDirectory(GC* gc);
         public:
             static InterperterThread* Create(GCList* ls);
             static InterperterThread* Create(GCList& ls);
@@ -2387,22 +2428,30 @@ class GC {
         public:
 
             TObject exception;
+            std::vector<CallStackEntry*> stack_trace;
+
             
             VMByteCodeException()
             {
             }
 
-            VMByteCodeException(GC* gc,TObject obj)
+            VMByteCodeException(GC* gc,TObject obj, CallStackEntry* ent)
             {
                 gcList = std::make_shared<GCList>(gc);
-                gcList.get()->Add(obj);
+                gcList->Add(obj);
+                if(ent != nullptr && ent->thread != nullptr)
+                {
+                    this->stack_trace = ent->thread->call_stack_entries;
+                    for(auto item : this->stack_trace)
+                        gcList->Add(item);
+                }
                 this->exception = obj;   
                 UpdateError();
             }
 
             void UpdateError()
             {
-                lastErrorText = ToString(gcList.get()->GetGC(),exception);
+                lastErrorText = ToString(gcList->GetGC(),exception);
 
             }
 
@@ -2410,14 +2459,19 @@ class GC {
             {
                 return lastErrorText.c_str();
             }
+            std::shared_ptr<GCList> GetGCList() {
+                return this->gcList;
+            }
 
     };
 
     class SyntaxException : public std::exception
     {
         std::string msg={};
+        LexTokenLineInfo line;
+        std::string message;
         public:
-            SyntaxException(LexTokenLineInfo lineInfo, std::string message)
+            SyntaxException(LexTokenLineInfo lineInfo, std::string message) : line(lineInfo), message(message)
             {
                 msg.append("in file: ");
                 msg.append(lineInfo.filename);
@@ -2434,6 +2488,9 @@ class GC {
             {
                 return msg.c_str();
             }
+
+            std::string Message() { return message;}
+            LexTokenLineInfo LineInfo() { return line;}
     };
 
     
@@ -2510,4 +2567,39 @@ class GC {
 
 
     std::shared_ptr<Tesses::Framework::Http::IHttpServer> ToHttpServer(GC* gc,TObject obj);
+
+    class EmbedStream : public Tesses::Framework::Streams::Stream
+    {
+        size_t offset;
+        MarkedTObject file;
+        uint32_t resource;
+     
+        public:
+            EmbedStream(GC* gc, TFile* file, uint32_t resource);
+            bool CanRead();
+            bool CanSeek();
+            bool EndOfStream();
+            size_t Read(uint8_t* buff, size_t len);
+            int64_t GetPosition();
+            int64_t GetLength();
+            void Seek(int64_t pos, Tesses::Framework::Streams::SeekOrigin whence);
+    };
+
+    class EmbedDirectory : public Tesses::Framework::Filesystem::VFS
+    {
+        MarkedTObject dir;
+        TObject getEntry(Tesses::Framework::Filesystem::VFSPath path);
+        public:
+            EmbedDirectory(GC* gc, TDictionary* dict);
+            std::shared_ptr<Tesses::Framework::Streams::Stream> OpenFile(Tesses::Framework::Filesystem::VFSPath path, std::string mode);
+            void CreateDirectory(Tesses::Framework::Filesystem::VFSPath path);
+            void DeleteDirectory(Tesses::Framework::Filesystem::VFSPath path);
+            bool RegularFileExists(Tesses::Framework::Filesystem::VFSPath path);
+            bool DirectoryExists(Tesses::Framework::Filesystem::VFSPath path);
+            void DeleteFile(Tesses::Framework::Filesystem::VFSPath path);
+            Tesses::Framework::Filesystem::VFSPathEnumerator EnumeratePaths(Tesses::Framework::Filesystem::VFSPath path);
+            void MoveFile(Tesses::Framework::Filesystem::VFSPath src, Tesses::Framework::Filesystem::VFSPath dest);
+            std::string VFSPathToSystem(Tesses::Framework::Filesystem::VFSPath path);
+            Tesses::Framework::Filesystem::VFSPath SystemToVFSPath(std::string path);
+    };
 };

src/assembler/asm.cpp

@@ -83,6 +83,18 @@ namespace Tesses::CrossLang {
             }
     };
 
+
+    class PushResourceStreamChunkInstruction : public ChunkInstruction {
+        public:
+            PushResourceStreamChunkInstruction(std::string v) : value(v)
+            {}
+            std::string value;
+            size_t Size()
+            {
+                return 5;
+            }
+    };
+
     class LabelChunkInstruction : public ChunkInstruction {
         public:
             LabelChunkInstruction(std::string lbl) : lbl(lbl)
@@ -281,6 +293,14 @@ namespace Tesses::CrossLang {
                 {
                     instrs.push_back(std::make_shared<SimpleChunkInstruction>(NOP));
                 }
+                else if(name == "lineinfo")
+                {
+                    instrs.push_back(std::make_shared<SimpleChunkInstruction>(LINEINFO));
+                }
+                else if(name == "embeddir")
+                {
+                    instrs.push_back(std::make_shared<SimpleChunkInstruction>(PUSHRESOUURCEDIR));
+                }
                 else if(name == "pushclosure")
                 {
                     auto closure = std::make_shared<ClosureChunkInstruction>(true);
@@ -321,6 +341,14 @@ namespace Tesses::CrossLang {
                         instrs.push_back(std::make_shared<PushResourceChunkInstruction>(str));
                     }
                 }
+                else if(name == "embedstrm")
+                {
+                    if(i < tokens.size() && tokens[i].type == LexTokenType::String)
+                    {
+                        std::string str = tokens[i++].text;
+                        instrs.push_back(std::make_shared<PushResourceStreamChunkInstruction>(str));
+                    }
+                }
                 else if(name == "push")
                 {
                     if(IsSym("."))
@@ -1027,6 +1055,7 @@ namespace Tesses::CrossLang {
                     auto chr = std::dynamic_pointer_cast<PushCharChunkInstruction>(item);
                     auto chk = std::dynamic_pointer_cast<ClosureChunkInstruction>(item);
                     auto reso = std::dynamic_pointer_cast<PushResourceChunkInstruction>(item);
+                    auto resos = std::dynamic_pointer_cast<PushResourceStreamChunkInstruction>(item);
                     auto jmp = std::dynamic_pointer_cast<JumpStyleChunkInstruction>(item);
                     auto scopeend = std::dynamic_pointer_cast<ScopeEndTimesChunkInstruction>(item);
                     if(lbl)
@@ -1062,6 +1091,10 @@ namespace Tesses::CrossLang {
                     {
                         chunks[chunkId].second.push_back(std::make_shared<EmbedInstruction>(GetResource(reso->value)));
                     }
+                    if(resos)
+                    {
+                        chunks[chunkId].second.push_back(std::make_shared<EmbedStreamInstruction>(GetResource(reso->value)));
+                    }
                     if(jmp)
                     {
                         chunks[chunkId].second.push_back(std::make_shared<JumpStyleInstruction>(jmp->instr,jmp->lbl));

src/assembler/disasm.cpp

@@ -223,6 +223,7 @@ namespace Tesses::CrossLang {
             {
                 switch(code[i++])
                 {
+                    case PUSHRESOURCESTREAM:
                     case PUSHRESOURCE:
                     case PUSHSTRING:
                     case SCOPEENDTIMES:
@@ -381,6 +382,9 @@ namespace Tesses::CrossLang {
                     case APPENDDICT:
                         buffer.append("appenddict");
                         break;
+                    case PUSHRESOUURCEDIR:
+                        buffer.append("embeddir");
+                        break;
                     case PUSHRESOURCE:
                     {
                         uint32_t clId = (uint32_t)code[i++] << 24;
@@ -391,6 +395,16 @@ namespace Tesses::CrossLang {
                         buffer.append(EscapeString(name + "-" + version.ToString()+"_"+ std::to_string(clId) + ".bin",true));
                     }
                         break;
+                    case PUSHRESOURCESTREAM:
+                    {
+                        uint32_t clId = (uint32_t)code[i++] << 24;
+                        clId |= (uint32_t)code[i++] << 16;
+                        clId |= (uint32_t)code[i++] << 8;
+                        clId |= (uint32_t)code[i++];
+                        buffer.append("embedstrm ");
+                        buffer.append(EscapeString(name + "-" + version.ToString()+"_"+ std::to_string(clId) + ".bin",true));
+                    }
+                        break;
                     case PUSHLONG:
                     {
                         uint64_t number = (uint64_t)code[i++] << 56;
@@ -571,6 +585,9 @@ namespace Tesses::CrossLang {
                     case BREAKPOINT:
                         buffer.append("breakpoint");
                         break;
+                    case LINEINFO:
+                        buffer.append("lineinfo");
+                        break;
                     case PUSHBREAK:
                         buffer.append("push break");
                         break;

src/compiler/codegen.cpp

@@ -34,7 +34,7 @@ namespace Tesses::CrossLang
     }
 
 
-    void CodeGen::Save(std::shared_ptr<Tesses::Framework::Filesystem::VFS> vfs, std::shared_ptr<Tesses::Framework::Streams::Stream> stream)
+    void CodeGen::Save(std::shared_ptr<Tesses::Framework::Streams::Stream> stream)
     {
         TVMVersion runtime_version(TVM_MAJOR,TVM_MINOR,TVM_PATCH,TVM_BUILD,TVM_VERSIONSTAGE);
         uint8_t buffer[18];
@@ -235,7 +235,7 @@ namespace Tesses::CrossLang
         {
             memcpy(buffer,"RESO",4);
             Write(stream,buffer,4);
-            WriteInt(stream,reso->GetLength(vfs));
+            WriteInt(stream,reso->GetLength(embedFS));
             reso->Write(stream);
         }
         if(!this->icon.empty())
@@ -354,6 +354,21 @@ namespace Tesses::CrossLang
         BitConverter::FromUint32BE(buff[0],this->n);
         instr.insert(instr.end(),buff.begin(),buff.end());
     }
+    EmbedStreamInstruction::EmbedStreamInstruction(uint32_t s)
+    {
+        this->n = s;
+    }
+    size_t EmbedStreamInstruction::Size()
+    {
+        return 5;
+    }
+    void EmbedStreamInstruction::Write(std::vector<uint8_t>& instr)
+    {
+        instr.push_back(PUSHRESOURCESTREAM);
+        std::array<uint8_t,4> buff;
+        BitConverter::FromUint32BE(buff[0],this->n);
+        instr.insert(instr.end(),buff.begin(),buff.end());
+    }
     ClosureInstruction::ClosureInstruction(uint32_t s,bool hasScope)
     {
         this->n = s;
@@ -522,7 +537,14 @@ namespace Tesses::CrossLang
             TWO_EXPR(NotEqualsExpression, NEQ)
             TWO_EXPR(EqualsExpression, EQ)
             TWO_EXPR(XOrExpression, XOR)
-            if(adv.nodeName == NullCoalescingExpression && adv.nodes.size() == 2)
+            if(adv.nodeName == LineNode && adv.nodes.size() == 2)
+            {
+
+                GenNode(instructions,adv.nodes[0],scope,contscope,brkscope,contI,brkI);
+                GenNode(instructions,adv.nodes[1],scope,contscope,brkscope,contI,brkI);
+                instructions.push_back(new SimpleInstruction(LINEINFO));
+            }
+            else if(adv.nodeName == NullCoalescingExpression && adv.nodes.size() == 2)
             {
                 uint32_t ifId = NewId();
                 std::string ifIdTrue = "__compGenTrue";
@@ -1358,6 +1380,49 @@ namespace Tesses::CrossLang
                 instructions.push_back(new EmbedInstruction(GetResource(std::make_shared<ResourceFile>(filename))));
 
             }
+            else if(adv.nodeName == EmbedStreamExpression && adv.nodes.size() == 1 && std::holds_alternative<std::string>(adv.nodes[0]))
+            {
+                std::string filename = std::get<std::string>(adv.nodes[0]);
+                instructions.push_back(new EmbedStreamInstruction(GetResource(std::make_shared<ResourceFile>(filename))));
+
+            }
+            else if(adv.nodeName == EmbedDirectoryExpression && adv.nodes.size() == 1 && std::holds_alternative<std::string>(adv.nodes[0]))
+            {
+                std::string filename = std::get<std::string>(adv.nodes[0]);
+                std::function<void(Tesses::Framework::Filesystem::VFSPath path)> embedDir;
+                embedDir = [&](Tesses::Framework::Filesystem::VFSPath path)-> void {
+                    instructions.push_back(new SimpleInstruction(CREATEDICTIONARY));
+
+                    if(embedFS != nullptr && embedFS->DirectoryExists(path))
+                    for(auto& item : embedFS->EnumeratePaths(path))
+                    {
+                        GenNode(instructions,item.GetFileName(),scope,contscope,brkscope,contI,brkI);
+                        if(embedFS->DirectoryExists(item))
+                        {
+                            embedDir(item);
+                        }
+                        else if(embedFS->RegularFileExists(item))
+                        {
+                            auto ce = AdvancedSyntaxNode::Create(ClosureExpression,true,{
+                                AdvancedSyntaxNode::Create(ParenthesesExpression,true,{}),
+                                AdvancedSyntaxNode::Create(ReturnStatement,false,{
+                                    AdvancedSyntaxNode::Create(EmbedStreamExpression,true,{item.ToString()})
+                                })
+                            });
+                            GenNode(instructions,ce,scope,contscope,brkscope,contI,brkI);
+                        }
+                        else {
+                            instructions.push_back(new SimpleInstruction(PUSHUNDEFINED));
+                        }
+
+                        instructions.push_back(new SimpleInstruction(APPENDDICT));
+                    }
+                };
+                embedDir(filename);
+                //
+                //instructions.push_back(new EmbedStreamInstruction(GetResource(std::make_shared<ResourceFile>(filename))));
+                instructions.push_back(new SimpleInstruction(PUSHRESOUURCEDIR));
+            }
             else if(adv.nodeName == HtmlRootExpression)
             {
                 scope++;

src/compiler/parser.cpp

@@ -922,7 +922,7 @@ namespace Tesses::CrossLang
 
                 auto ms = std::make_shared<Tesses::Framework::Streams::MemoryStream>(true);
                 
-                gen.Save(nullptr,ms);
+                gen.Save(ms);
 
                 ms->Seek(0, Tesses::Framework::Streams::SeekOrigin::Begin);
 
@@ -963,6 +963,26 @@ namespace Tesses::CrossLang
             EnsureSymbol(")");
             node = AdvancedSyntaxNode::Create(EmbedExpression, true,{embed.text});
         }
+        else if(IsIdentifier("embedstrm"))
+        {
+            EnsureSymbol("(");
+            if(i >= tokens.size()) throw std::out_of_range("End of file");
+            auto embed = tokens[i];
+            i++;
+            if(embed.type != LexTokenType::String) throw SyntaxException(embed.lineInfo, "Expected an string for embed got a " + LexTokenType_ToString(embed.type) + " \"" + embed.text + "\"");
+            EnsureSymbol(")");
+            node = AdvancedSyntaxNode::Create(EmbedStreamExpression, true,{embed.text});
+        }
+        else if(IsIdentifier("embeddir"))
+        {
+            EnsureSymbol("(");
+            if(i >= tokens.size()) throw std::out_of_range("End of file");
+            auto embed = tokens[i];
+            i++;
+            if(embed.type != LexTokenType::String) throw SyntaxException(embed.lineInfo, "Expected an string for embed got a " + LexTokenType_ToString(embed.type) + " \"" + embed.text + "\"");
+            EnsureSymbol(")");
+            node = AdvancedSyntaxNode::Create(EmbedDirectoryExpression, true,{embed.text});
+        }
         else if(tokens[i].type == LexTokenType::Identifier)
         {
             auto token=tokens[i];
@@ -1304,6 +1324,15 @@ namespace Tesses::CrossLang
         }
         return node;
     }
+    bool Parser::CanEmit(LexTokenLineInfo& ifo)
+    {
+        if(!this->debug) return false;
+        bool same = ifo.line == this->lastLine && ifo.filename == this->lastFile;
+        this->lastFile = ifo.filename;
+        this->lastLine = ifo.line;
+
+        return !same;
+    }
     SyntaxNode Parser::ParseNode(bool isRoot)
     {
         std::string documentation="";
@@ -1324,6 +1353,8 @@ namespace Tesses::CrossLang
             
             while(i < tokens.size() && (isRoot || !IsSymbol("}",false)))
             {
+                auto token = tokens[i];
+                if(CanEmit(token.lineInfo)) aSN.nodes.push_back(AdvancedSyntaxNode::Create(LineNode,false, {(int64_t)tokens[i].lineInfo.line,tokens[i].lineInfo.filename}));
                 aSN.nodes.push_back(ParseNode());
                 IsSymbol(";");
             }

src/crosslang.cpp

@@ -127,7 +127,7 @@ int main(int argc, char** argv)
     for(int arg=1;arg<argc;arg++)
         args->Add(std::string(argv[arg]));
    
-    auto res = env->CallFunction(ls,"main",{args});
+    auto res = env->CallFunctionWithFatalError(ls,"main",{args});
     int64_t iresult;
     if(GetObject(res,iresult))
         return (int)iresult;

src/crosslangcompiler.cpp

@@ -13,6 +13,7 @@ void Help(const char* filename)
     printf("  -I:  Set icon resource name (in the resource folder), should be a 128x128 png\n");
     printf("  -v:  Set version (1.0.0.0-prod defaults to 1.0.0.0-dev)\n");
     printf("  -d:  Add dependency (DependencyName-1.0.0.0-prod)\n");
+    printf("  -D: enable debug)\n");
     printf("  -t:  Declare a tool (ToolName-1.0.0.0-prod)\n");
     printf("  -n:  Set name (MyAppOrLibName defaults to out)\n");
     printf("  -r:  Set resource directory (RESDIR defaults to res)\n");
@@ -46,7 +47,7 @@ int main(int argc, char** argv)
    std::string icon="";
    std::string comptime="none";
    TVMVersion version;
-
+   bool debug=false;
 
    
 
@@ -56,6 +57,7 @@ int main(int argc, char** argv)
         {
             Help(argv[0]);
         }
+        
         else if(strcmp(argv[i], "-o") == 0)
         {
             i++;
@@ -187,6 +189,10 @@ int main(int argc, char** argv)
                 }
             }
         }
+        else if(strcmp(argv[i],"-D") == 0)
+        {
+            debug = true;
+        }
         else {
             source.push_back(argv[i]);
         }
@@ -202,7 +208,7 @@ int main(int argc, char** argv)
     for(auto src : source)
     {
         std::ifstream strm(src,std::ios_base::in|std::ios_base::binary);
-        int res = Lex(argv[1],strm,tokens);
+        int res = Lex(std::filesystem::absolute(src).string(),strm,tokens);
         
     }
 
@@ -248,8 +254,12 @@ int main(int argc, char** argv)
     }
     
     Parser parser(tokens,gc,env);
-
+    parser.debug = debug;
     CodeGen gen;
+
+    auto sfs = std::make_shared<SubdirFilesystem>(LocalFS,LocalFS->SystemToVFSPath(resourceDir.string()));
+    gen.embedFS = sfs;
+
     gen.GenRoot(parser.ParseRoot());
     gen.name = name;
     gen.version = version;
@@ -269,9 +279,7 @@ int main(int argc, char** argv)
     {
         auto strm = std::make_shared<Tesses::Framework::Streams::FileStream>(outputDir / (name + "-" + version.ToString() + ".crvm"),"wb");
     
-        auto sfs = std::make_shared<SubdirFilesystem>(LocalFS,LocalFS->SystemToVFSPath(resourceDir.string()));
-
-        gen.Save(sfs,strm);
+        gen.Save(strm);
     }
     if(gc != nullptr)
     {

src/crosslanginterperter.cpp

@@ -24,13 +24,14 @@ int main(int argc, char** argv)
         Parser parser(tokens);
 
         CodeGen gen;
+
+        auto sfs = std::make_shared<SubdirFilesystem>(LocalFS,VFSPath("."));
+        gen.embedFS = sfs;
         gen.GenRoot(parser.ParseRoot());
         std::vector<uint8_t> data;
         {
-        auto sfs = std::make_shared<SubdirFilesystem>(LocalFS,VFSPath("."));
-        
         auto strm2 = std::make_shared<Tesses::Framework::Streams::MemoryStream>(true);
-        gen.Save(sfs,strm2);
+        gen.Save(strm2);
 
         
         {
@@ -49,7 +50,7 @@ int main(int argc, char** argv)
     for(int arg=1;arg<argc;arg++)
         args->Add(std::string(argv[arg]));
    
-    auto res = env->CallFunction(ls,"main",{args});
+    auto res = env->CallFunctionWithFatalError(ls,"main",{args});
     int64_t iresult;
     if(GetObject(res,iresult))
         return (int)iresult;
@@ -78,11 +79,12 @@ int main(int argc, char** argv)
                 Parser parser(tokens);
 
                 CodeGen gen;
-                gen.GenRoot(parser.ParseRoot());
 
                 auto sfs = std::make_shared<SubdirFilesystem>(LocalFS,VFSPath("."));
+                gen.embedFS = sfs;
+                gen.GenRoot(parser.ParseRoot());
                 
-                gen.Save(sfs, strm2);
+                gen.Save(strm2);
 
             }
             else if(source == "exit")
@@ -98,11 +100,13 @@ int main(int argc, char** argv)
                 Parser parser(tokens);
 
                 CodeGen gen;
-                gen.GenRoot(parser.ParseRoot());
 
                 auto sfs = std::make_shared<SubdirFilesystem>(LocalFS,VFSPath("."));
+                gen.embedFS = sfs;
 
-                gen.Save(sfs,strm2);
+                gen.GenRoot(parser.ParseRoot());
+                
+                gen.Save(strm2);
             }
 
             {

src/crosslangvm.cpp

@@ -35,7 +35,7 @@ int main(int argc, char** argv)
             args2->Add(item);
         }
 
-        auto res = env->CallFunction(ls, "WebAppMain", {args2});
+        auto res = env->CallFunctionWithFatalError(ls, "WebAppMain", {args2});
         auto svr2 = Tesses::CrossLang::ToHttpServer(&gc,res);
         if(svr2 == nullptr) return 1;
         Tesses::Framework::Http::HttpServer svr(port,svr2);
@@ -58,7 +58,7 @@ int main(int argc, char** argv)
     for(int arg=1;arg<argc;arg++)
         args->Add(std::string(argv[arg]));
    
-    auto res = env->CallFunction(ls,"main",{args});
+    auto res = env->CallFunctionWithFatalError(ls,"main",{args});
     int64_t iresult;
     if(GetObject(res,iresult))
         return (int)iresult;

src/runtime_methods/vm.cpp

@@ -138,6 +138,7 @@ namespace Tesses::CrossLang
         std::vector<std::pair<std::string,TVMVersion>> tools;
         std::string info;
         std::string icon;
+        bool debug=false;
         std::shared_ptr<Tesses::Framework::Filesystem::VFS> vfs;
 
         ls.GetGC()->BarrierBegin();
@@ -152,6 +153,7 @@ namespace Tesses::CrossLang
         TObject _resourceFileSystem = dict->GetValue("ResourceFileSystem");
         
         TObject _out = dict->GetValue("Output");
+        TObject _dbg = dict->GetValue("Debug");
         TList* _toolList;
         TList* _depList; TList* srcLst;
         TRootEnvironment* comptimeEnv=nullptr;
@@ -160,6 +162,7 @@ namespace Tesses::CrossLang
         GetObject<std::string>(_icon,icon);
         GetObject(_resourceFileSystem, vfs);
         GetObjectHeap(_comptime,comptimeEnv);
+        GetObject(_dbg,debug);
         std::string v2;
         if(GetObject<std::string>(_version,v2))
             TVMVersion::TryParse(v2, version);
@@ -258,8 +261,10 @@ namespace Tesses::CrossLang
             }
         }
         Parser parser(tokens,ls.GetGC(),comptimeEnv);
+        parser.debug = debug;
         SyntaxNode n = parser.ParseRoot();
         CodeGen gen;
+        gen.embedFS = vfs;
         gen.GenRoot(n);
         gen.dependencies = dependencies;
         gen.tools = tools;
@@ -271,7 +276,7 @@ namespace Tesses::CrossLang
         std::shared_ptr<Tesses::Framework::Streams::Stream> stream;
         if(GetObject(_out, stream))
         {
-            gen.Save(vfs, stream);
+            gen.Save(stream);
         }
 
         
@@ -282,11 +287,43 @@ namespace Tesses::CrossLang
             return Failure(ls, ex.what());
         }
     }
+    static TObject VM_GetStacktrace(GCList& ls, std::vector<TObject> args)
+    {
+        if(current_function != nullptr)
+        {
+            if(current_function->thread != nullptr)
+            {
+                TList* list = TList::Create(ls);
+                ls.GetGC()->BarrierBegin();
+                for(auto item : current_function->thread->call_stack_entries)
+                {
+                    auto dict = TDictionary::Create(ls);
+                    if(item->callable->closure->name)
+                        dict->SetValue("Name", *item->callable->closure->name);
+                    
+                    dict->SetValue("Closure", item->callable->closure);
+                    dict->SetValue("FileName", item->callable->file->name + "-" + item->callable->file->version.ToString() + ".crvm");
+                    dict->SetValue("IP",(int64_t)item->ip);
+                    if(item->srcline >= 1)
+                    {
+                        dict->SetValue("SourceFile", item->srcfile);
+                        dict->SetValue("SourceLine",item->srcline);
+                    }
+                    list->Add(dict);
+                }
+                ls.GetGC()->BarrierEnd();
+                return list;
+            }
+        }
+        return nullptr;
+    }
     void TStd::RegisterVM(GC* gc,TRootEnvironment* env)
     {
         env->permissions.canRegisterVM=true;
         GCList ls(gc);
+
         TDictionary* dict = TDictionary::Create(ls);
+        dict->DeclareFunction(gc, "GetStacktrace","Get the current stack trace", {}, VM_GetStacktrace);
         dict->DeclareFunction(gc, "getRootEnvironmentAsDictionary","Get root environment as a dictionary",{},[env](GCList& ls, std::vector<TObject> args)-> TObject{
             return env->GetDictionary();
         });

src/types/class.cpp

@@ -154,6 +154,7 @@ namespace Tesses::CrossLang
                     else
                     {
                         auto clos = TClosure::Create(ls,obj->env,file,entry.chunkId);
+                        clos->closure->name = obj->name + "::" + ent.name;
                         clos->className = ownerNow;
                         clos->documentation = entry.documentation;
                         ent.value = clos;
@@ -163,6 +164,7 @@ namespace Tesses::CrossLang
                     if(entry.isAbstract) ent.value = Undefined();
                     else {
                         auto clos = TClosure::Create(ls,obj->env,file,entry.chunkId);
+                        clos->closure->name = obj->name + "::" + ent.name;
                         clos->className = ownerNow;
                         ent.value = clos->Call(*ls,{});
                     }

src/types/dictionary.cpp

@@ -126,6 +126,33 @@ namespace Tesses::CrossLang  {
             }
         return Undefined();
     }
+    TObject TDictionary::CallMethodWithFatalError(GCList& ls, std::string key, std::vector<TObject> args)
+    {
+        ls.GetGC()->BarrierBegin();
+        auto res = this->GetValue(key);
+        ls.GetGC()->BarrierEnd();
+        TCallable* callable;
+
+            if(GetObjectHeap(res,callable))
+            {
+                 auto closure = dynamic_cast<TClosure*>(callable);
+                if(closure != nullptr && !closure->closure->args.empty() && closure->closure->args.front() == "this") 
+                {
+                   std::vector<TObject> args2;
+                        args2.push_back(this);
+                        args2.insert(args2.end(), args.begin(),args.end());
+                    return closure->CallWithFatalError(ls,args2);
+                    
+                }
+                else
+                {
+                    return callable->CallWithFatalError(ls,args);
+                    
+                }
+            }
+        return Undefined();
+    }
+    
     void TDictionary::DeclareFunction(GC* gc,std::string key,std::string documentation, std::vector<std::string> argNames, std::function<TObject(GCList& ls, std::vector<TObject> args)> cb)
     {
         gc->BarrierBegin();
@@ -204,4 +231,5 @@ namespace Tesses::CrossLang  {
         _gc->Watch(dict);
         return dict;
     }
+    
 };

src/types/embed.cpp

@@ -0,0 +1,228 @@
+#include "CrossLang.hpp"
+
+namespace Tesses::CrossLang {
+
+    EmbedStream::EmbedStream(GC* gc, TFile* file, uint32_t resource)
+    {
+        this->offset = 0;
+        this->resource = resource;
+        this->file = CreateMarkedTObject(gc,file);
+    }
+    bool EmbedStream::CanRead()
+    {
+        TFile* file;
+        if(GetObjectHeap(this->file->GetObject(),file))
+        {
+            if(this->resource >= file->resources.size()) return false;
+            if(this->offset >= file->resources[this->resource].size()) return false;
+            return true;
+        }
+        return false;
+    }
+    bool EmbedStream::CanSeek()
+    {
+        return true;
+    }
+    bool EmbedStream::EndOfStream()
+    {
+        return !CanRead();
+    }
+    size_t EmbedStream::Read(uint8_t* buff, size_t len)
+    {
+        TFile* file;
+                
+        if(GetObjectHeap(this->file->GetObject(),file))
+        {
+            if(this->resource >= file->resources.size()) return 0;
+            auto flen = file->resources[this->resource].size();
+            if(this->offset >= flen) return 0;
+                    
+            len = std::min(len, std::min(
+                flen,
+                flen - this->offset
+            ));
+
+            memcpy(buff,file->resources[this->resource].data() + this->offset,len);
+            this->offset += len;
+            return len;
+        }
+        return 0;
+    }
+    int64_t EmbedStream::GetPosition()
+    {
+        return (int64_t)this->offset;
+    }
+    int64_t EmbedStream::GetLength()
+    {
+        TFile* file;
+                
+        if(GetObjectHeap(this->file->GetObject(),file))
+        {
+            if(this->resource >= file->resources.size()) return 0;
+            return (int64_t)file->resources[this->resource].size();
+        }
+        return 0;
+    }
+    void EmbedStream::Seek(int64_t pos, Tesses::Framework::Streams::SeekOrigin whence)
+    {
+        switch(whence)
+        {
+            case Tesses::Framework::Streams::SeekOrigin::Begin:
+                this->offset = (uint32_t)pos;
+            	break;
+            case Tesses::Framework::Streams::SeekOrigin::Current:
+            {
+                int64_t cur = this->offset;
+                cur += pos;
+                this->offset = (uint32_t)cur;
+            }
+            	break;
+            case Tesses::Framework::Streams::SeekOrigin::End:
+            {
+            	TFile* file;
+                
+                if(GetObjectHeap(this->file->GetObject(),file))
+                {
+                    if(this->resource >= file->resources.size()) return;
+                    int64_t cur = (int64_t)file->resources[this->resource].size();
+                    cur += pos;
+                    this->offset = (uint32_t)cur;
+                }
+                break;
+            }
+        }
+    }
+	TObject EmbedDirectory::getEntry(Tesses::Framework::Filesystem::VFSPath path)
+	{
+		path = path.CollapseRelativeParents();
+		auto curEntry = this->dir->GetObject();
+		for(auto item : path.path)		
+		{
+			TDictionary* dict;
+			if(GetObjectHeap(curEntry,dict) && dict->HasValue(item))
+			{
+				curEntry = dict->GetValue(item);
+				continue; //don't want to return undefined now do we
+			}
+			return Undefined();
+		}
+		return curEntry;
+	}
+    
+    std::shared_ptr<Tesses::Framework::Streams::Stream> EmbedDirectory::OpenFile(Tesses::Framework::Filesystem::VFSPath path, std::string mode)
+	{
+		if(mode != "r" && mode != "rb") return nullptr;
+		
+		auto ent = getEntry(path);
+		TCallable* call;
+		if(GetObjectHeap(ent,call))
+        {
+            GCList ls(this->dir->GetGC());
+            auto fileO = call->Call(ls,{});
+            std::shared_ptr<Tesses::Framework::Streams::Stream> strm;
+            if(GetObject(fileO,strm)) return strm;
+        }
+        return nullptr;
+	}
+	bool EmbedDirectory::RegularFileExists(Tesses::Framework::Filesystem::VFSPath path)
+	{
+		auto ent = getEntry(path);
+		TCallable* call;
+		return GetObjectHeap(ent,call);
+	}
+    bool EmbedDirectory::DirectoryExists(Tesses::Framework::Filesystem::VFSPath path)
+	{
+		auto ent = getEntry(path);
+		TDictionary* dict;
+		return GetObjectHeap(ent,dict);
+	}
+
+    class DICT_DIRENUM
+    {
+        GCList ls;
+        TDictionary* dict;
+        std::map<std::string, Tesses::CrossLang::TObject>::iterator current;
+        bool hasStarted = false;
+        public:
+            std::string GetCurrent()
+            {
+                return this->current->first;
+            }
+            DICT_DIRENUM(GC* gc, TDictionary* dict) : ls(gc), dict(dict)
+            {
+                ls.Add(dict);
+            }
+            bool MoveNext()
+            {
+                if(!this->hasStarted)
+                {
+                    this->hasStarted=true;
+                    this->current = this->dict->items.begin();
+                    return !this->dict->items.empty();
+                }
+                else
+                {
+                    this->current++;
+                    return this->current != this->dict->items.end();
+                }
+            }
+
+    };
+
+
+    Tesses::Framework::Filesystem::VFSPathEnumerator EmbedDirectory::EnumeratePaths(Tesses::Framework::Filesystem::VFSPath path)
+    {
+        auto ent = getEntry(path);
+		TDictionary* dict;
+		if(GetObjectHeap(ent,dict))
+        {
+            DICT_DIRENUM* dir2 = new DICT_DIRENUM(this->dir->GetGC(), dict);
+
+            Tesses::Framework::Filesystem::VFSPathEnumerator er(
+                [dir2,path](Tesses::Framework::Filesystem::VFSPath& path2)->bool {
+                    if(dir2->MoveNext())
+                    {
+                        path2 = path / dir2->GetCurrent();
+                        return true;
+                    }
+                    return false;
+                },
+                [dir2]()->void {
+                    delete dir2;
+                }
+            );
+
+            return er;
+        }
+        return Tesses::Framework::Filesystem::VFSPathEnumerator();
+    }
+
+    EmbedDirectory::EmbedDirectory(GC* gc, TDictionary* dict)
+    {
+        this->dir = CreateMarkedTObject(gc, dict);
+    }
+    void EmbedDirectory::CreateDirectory(Tesses::Framework::Filesystem::VFSPath path)
+    {
+        //DO NOTHING
+    }
+    void EmbedDirectory::DeleteDirectory(Tesses::Framework::Filesystem::VFSPath path)
+    {
+
+    }
+    void EmbedDirectory::DeleteFile(Tesses::Framework::Filesystem::VFSPath path)
+    {
+
+    }
+    void EmbedDirectory::MoveFile(Tesses::Framework::Filesystem::VFSPath src, Tesses::Framework::Filesystem::VFSPath dest)
+    {
+
+    }
+    std::string EmbedDirectory::VFSPathToSystem(Tesses::Framework::Filesystem::VFSPath path)
+    {
+        return path.ToString();
+    }
+    Tesses::Framework::Filesystem::VFSPath EmbedDirectory::SystemToVFSPath(std::string path)
+    {
+        return path;
+    }
+}

src/types/rootenvironment.cpp

@@ -118,11 +118,12 @@ namespace Tesses::CrossLang {
                 throw VMException("Lex error at line: " + std::to_string(res));
             }
             Parser parser(tokens);
+            
             SyntaxNode n = parser.ParseRoot();
             CodeGen gen;
             gen.GenRoot(n);
             auto ms = std::make_shared<Tesses::Framework::Streams::MemoryStream>(true);
-            gen.Save(nullptr, ms);
+            gen.Save(ms);
             ms->Seek(0,Tesses::Framework::Streams::SeekOrigin::Begin);
             TFile* f = TFile::Create(ls);
             f->Load(ls.GetGC(),ms);
@@ -230,6 +231,9 @@ namespace Tesses::CrossLang {
                     std::vector<std::string> method=file->classes[i].name;
                     method.push_back(meth.name);
                     auto clo = TClosure::Create(ls,this,file,meth.chunkId);
+                    clo->closure->name = JoinPeriod(method);
+
+
                     clo->documentation = meth.documentation;
                     this->DeclareVariable(gc, method, clo);
                 }
@@ -239,7 +243,6 @@ namespace Tesses::CrossLang {
         for(auto fn : file->functions)
         {
             
-            std::string name;
             
             
             if(fn.first.size() < 2) throw VMException("No function name.");
@@ -248,6 +251,7 @@ namespace Tesses::CrossLang {
 
             if(fn.second >= file->chunks.size()) throw VMException("ChunkId out of bounds.");
             TFileChunk* chunk = file->chunks[fn.second];
+            chunk->name = JoinPeriod(items);
             GCList ls(gc);
             TClosure* closure=TClosure::Create(ls,this,file,fn.second);
             closure->documentation = fn.first[0];

src/types/subenvironment.cpp

@@ -163,6 +163,19 @@ namespace Tesses::CrossLang  {
         }
         return Undefined();
     }
+    TObject TEnvironment::CallFunctionWithFatalError(GCList& ls, std::string key, std::vector<TObject> args)
+    {
+        ls.GetGC()->BarrierBegin();
+        auto res = this->GetVariable(key);
+        ls.GetGC()->BarrierEnd();
+        TCallable* callable;
+
+        if(GetObjectHeap(res,callable))
+        {
+            return callable->CallWithFatalError(ls,args);
+        }
+        return Undefined();
+    }
     TSubEnvironment* TEnvironment::GetSubEnvironment(GCList* gc)
     {
         auto dict=TDictionary::Create(gc);

src/vm/exception.cpp

@@ -0,0 +1,107 @@
+#include "CrossLang.hpp"
+
+namespace Tesses::CrossLang {
+    TObject TCallable::CallWithFatalError(GCList& ls, std::vector<TObject> args)
+    {
+        try {
+            return Call(ls,args);
+        } 
+        catch(VMByteCodeException& ex)
+        {
+            ThrowFatalError(ex);
+        }
+        catch(VMException& ex)
+        {
+            ThrowFatalError(ex);
+        }
+        catch(SyntaxException& ex)
+        {
+            ThrowFatalError(ex);
+        }
+        catch(std::runtime_error& ex)
+        {
+            ThrowFatalError(ex);
+        }
+        catch(std::exception& ex)
+        {
+            ThrowFatalError(ex);
+        }
+        return (int64_t)1;
+    }
+    void ThrowFatalError(std::exception& ex)
+    {
+        using namespace Tesses::Framework::TextStreams;
+        std::exception* ex2 = &ex;
+        auto clexcept = dynamic_cast<VMByteCodeException*>(ex2);
+        auto clrtexcept = dynamic_cast<VMException*>(ex2);
+        auto compiler = dynamic_cast<SyntaxException*>(ex2);
+        Tesses::Framework::TextStreams::ConsoleWriter error(true);
+            
+        if(clexcept != nullptr)
+        {
+            error.WriteLine("CrossLang has encountered a fatal exception");
+            error.WriteLine();
+            
+            error.WriteLine(ToString(clexcept->GetGCList()->GetGC(),clexcept->exception));
+            error.WriteLine();
+            error.WriteLine("STACKTRACE:");
+            
+            for(auto ittr = clexcept->stack_trace.crbegin(); ittr != clexcept->stack_trace.crend(); ittr++)
+            {
+                auto item = *ittr;
+                std::string text = "\t";
+                text += item->callable->closure->name.value_or((std::string)"<Closure>");
+                text += "(";
+                bool first=true;
+                for(auto& arg : item->callable->closure->args)
+                {
+                    if(!first) text += ", ";
+                    text += arg;
+                    first=false;
+                }
+                text += ")";
+                if(item->srcline >= 1)
+                {
+                    text += " at ";
+                    text += item->srcfile;
+                    text += ":";
+                    text += std::to_string(item->srcline);
+                }
+                error.WriteLine(text);
+            }
+
+            exit(1);
+        }
+        if(clrtexcept != nullptr)
+        {
+            error.WriteLine("CrossLang has encountered a fatal runtime exception");
+            error.WriteLine();
+            error.WriteLine(clrtexcept->what());
+            exit(1);
+        }
+        if(compiler != nullptr)
+        {
+            error.WriteLine("CrossLang has encountered a compiler error");
+            error.WriteLine();
+            error.WriteLine(compiler->Message());
+            error.WriteLine();
+            auto li = compiler->LineInfo();
+            error.Write("in file: ");
+            error.Write(li.filename);
+            error.Write(":");
+            error.Write((int64_t)li.line);
+            error.Write(":");
+            error.Write((int64_t)li.column);
+            error.Write(":");
+            error.WriteLine((int64_t)li.offset);
+
+            exit(1);
+        }
+        
+        error.WriteLine("CrossLang has encountered a fatal C++ exception");
+        error.WriteLine();
+        error.Write("what(): ");
+        error.WriteLine(ex2->what());
+        exit(1);
+    }
+}

src/vm/vm.cpp

@@ -4237,7 +4237,7 @@ namespace Tesses::CrossLang {
                         if(args.size() > 0)
                         {
                             try {
-                                throw VMByteCodeException(gc,args[0]);
+                                throw VMByteCodeException(gc,args[0],cse.back());
                             } catch(...) {
                                 ttask->SetFailed(std::current_exception());
                             }
@@ -6971,7 +6971,35 @@ namespace Tesses::CrossLang {
         }
         return false;
     }
+    bool InterperterThread::PushResourceStream(GC* gc)
+    {
+        std::vector<CallStackEntry*>& cse=this->call_stack_entries;
+        if(!cse.empty())
+        {
+            auto stk = cse.back();
+            std::vector<uint8_t>& code = stk->callable->closure->code;
+            if(stk->ip + 4 <= code.size())
+            {
+                uint32_t n=BitConverter::ToUint32BE(code[stk->ip]);
+                if(n >= stk->callable->file->resources.size())
+                    throw VMException("Can't read resource.");
+                stk->ip = stk->ip + 4;
 
+                gc->BarrierBegin();
+                GCList ls(gc);
+  //              TByteArray* arr = TByteArray::Create(ls);
+//                arr->data = stk->callable->file->resources[n];
+                stk->Push(gc, std::make_shared<EmbedStream>(gc,stk->callable->file,n));
+                
+                gc->BarrierEnd();
+            }
+            else
+            {
+                throw VMException("Can't read chunk.");
+            }
+        }
+        return false;
+    }
 
     bool InterperterThread::PushResource(GC* gc)
     {
@@ -7012,7 +7040,22 @@ namespace Tesses::CrossLang {
         {
             auto env = cse.back()->env;
             if(!env->GetRootEnvironment()->HandleException(gc,env, _res2))
-            throw VMByteCodeException(gc,_res2);
+            throw VMByteCodeException(gc,_res2,cse.back());
+        }
+        return false;
+    }
+    bool InterperterThread::PushResourceDirectory(GC* gc)
+    {
+        std::vector<CallStackEntry*>& cse=this->call_stack_entries;
+        GCList ls(gc);
+        auto _res2 = cse.back()->Pop(ls);
+        TDictionary* dict;
+        if(GetObjectHeap(_res2, dict))
+        {
+            cse.back()->Push(gc, std::make_shared<EmbedDirectory>(gc,dict));
+        }
+        else {
+            cse.back()->Push(gc, Undefined());
         }
         return false;
     }
@@ -7167,6 +7210,24 @@ namespace Tesses::CrossLang {
         auto stk = cse.back();
        
         stk->Push(gc,Undefined());
+        return false;
+    }
+    bool InterperterThread::LineInfo(GC* gc)
+    {
+        GCList ls(gc);
+        std::vector<CallStackEntry*>& cse=this->call_stack_entries;
+        auto stk = cse.back();
+        auto file = stk->Pop(ls);
+        auto line = stk->Pop(ls);      
+        
+        //Set the fields in this cse
+        GetObject(file,stk->srcfile);
+        GetObject(line,stk->srcline);  
+
+        //TODO: implement lines (this will make the language work until we get it rigged up)
+
+
+
         return false;
     }
       bool InterperterThread::PushFalse(GC* gc)
@@ -7867,6 +7928,9 @@ namespace Tesses::CrossLang {
     {
         CallStackEntry* cse = new CallStackEntry();
         cse->mustReturn=false;
+        cse->srcline = -1;
+        cse->srcfile = "";
+        cse->thread=nullptr;
         GC* _gc = ls.GetGC();
         ls.Add(cse);
         _gc->Watch(cse);
@@ -7877,6 +7941,9 @@ namespace Tesses::CrossLang {
     {
         CallStackEntry* cse = new CallStackEntry();
         cse->mustReturn=false;
+        cse->srcline = -1;
+        cse->srcfile = "";
+        cse->thread=nullptr;
         GC* _gc = ls->GetGC();
         ls->Add(cse);
         _gc->Watch(cse);
@@ -7886,6 +7953,7 @@ namespace Tesses::CrossLang {
     {
         ls.GetGC()->BarrierBegin();
         CallStackEntry* cse = CallStackEntry::Create(ls);
+        cse->thread = this;
         cse->callable = closure;
         cse->env = closure->chunkId == 0 ? closure->env : closure->ownScope ? closure->env->GetSubEnvironment(ls) : closure->env;
         cse->ip = 0;

src/vm/vm_opcode_table.h

@@ -64,9 +64,9 @@ static opcode opcodes[256]={
     &InterperterThread::JumpIfContinue,
     &InterperterThread::JumpIfDefined,
     &InterperterThread::DeclareConstVariable,
-    &InterperterThread::Illegal,
-    &InterperterThread::Illegal,
-    &InterperterThread::Illegal,
+	&InterperterThread::LineInfo,
+    &InterperterThread::PushResourceStream,
+    &InterperterThread::PushResourceDirectory,
     &InterperterThread::Illegal,
     &InterperterThread::Illegal,
     &InterperterThread::Illegal,