Torque3D/Engine/source/console/codeBlock.cpp

//-----------------------------------------------------------------------------
// Copyright (c) 2012 GarageGames, LLC
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//-----------------------------------------------------------------------------

#include "console/console.h"
#include "console/compiler.h"
#include "console/codeBlock.h"
#include "console/telnetDebugger.h"
#include "console/ast.h"
#include "core/strings/unicode.h"
#include "core/strings/stringFunctions.h"
#include "core/stringTable.h"
#include "core/stream/fileStream.h"

using namespace Compiler;

bool           CodeBlock::smInFunction = false;
CodeBlock *    CodeBlock::smCodeBlockList = NULL;
CodeBlock *    CodeBlock::smCurrentCodeBlock = NULL;
ConsoleParser *CodeBlock::smCurrentParser = NULL;

extern FuncVars gEvalFuncVars;
extern FuncVars* gFuncVars;

//-------------------------------------------------------------------------

CodeBlock::CodeBlock()
{
   globalStrings = NULL;
   functionStrings = NULL;
   functionStringsMaxLen = 0;
   globalStringsMaxLen = 0;
   globalFloats = NULL;
   functionFloats = NULL;
   lineBreakPairs = NULL;
   breakList = NULL;
   breakListSize = 0;

   refCount = 0;
   code = NULL;
   name = NULL;
   fullPath = NULL;
   modPath = NULL;
   codeSize = 0;
   lineBreakPairCount = 0;
   nextFile = NULL;
}

CodeBlock::~CodeBlock()
{
   // Make sure we aren't lingering in the current code block...
   AssertFatal(smCurrentCodeBlock != this, "CodeBlock::~CodeBlock - Caught lingering in smCurrentCodeBlock!");

   if (name)
      removeFromCodeList();
   delete[] const_cast<char*>(globalStrings);
   delete[] const_cast<char*>(functionStrings);

   functionStringsMaxLen = 0;
   globalStringsMaxLen = 0;

   delete[] globalFloats;
   delete[] functionFloats;
   delete[] code;
   delete[] breakList;
}

//-------------------------------------------------------------------------

StringTableEntry CodeBlock::getCurrentCodeBlockName()
{
   if (CodeBlock::getCurrentBlock())
      return CodeBlock::getCurrentBlock()->name;
   else
      return NULL;
}

StringTableEntry CodeBlock::getCurrentCodeBlockFullPath()
{
   if (CodeBlock::getCurrentBlock())
      return CodeBlock::getCurrentBlock()->fullPath;
   else
      return NULL;
}

StringTableEntry CodeBlock::getCurrentCodeBlockModName()
{
   if (CodeBlock::getCurrentBlock())
      return CodeBlock::getCurrentBlock()->modPath;
   else
      return NULL;
}

CodeBlock *CodeBlock::find(StringTableEntry name)
{
   for (CodeBlock *walk = CodeBlock::getCodeBlockList(); walk; walk = walk->nextFile)
      if (walk->name == name)
         return walk;
   return NULL;
}

//-------------------------------------------------------------------------

void CodeBlock::addToCodeList()
{
   // remove any code blocks with my name
   for (CodeBlock **walk = &smCodeBlockList; *walk; walk = &((*walk)->nextFile))
   {
      if ((*walk)->name == name)
      {
         *walk = (*walk)->nextFile;
         break;
      }
   }
   nextFile = smCodeBlockList;
   smCodeBlockList = this;
}

void CodeBlock::clearAllBreaks()
{
   if (!lineBreakPairs)
      return;
   for (U32 i = 0; i < lineBreakPairCount; i++)
   {
      U32 *p = lineBreakPairs + i * 2;
      code[p[1]] = p[0] & 0xFF;
   }
}

void CodeBlock::clearBreakpoint(U32 lineNumber)
{
   if (!lineBreakPairs)
      return;
   for (U32 i = 0; i < lineBreakPairCount; i++)
   {
      U32 *p = lineBreakPairs + i * 2;
      if ((p[0] >> 8) == lineNumber)
      {
         code[p[1]] = p[0] & 0xFF;
         return;
      }
   }
}

void CodeBlock::setAllBreaks()
{
   if (!lineBreakPairs)
      return;
   for (U32 i = 0; i < lineBreakPairCount; i++)
   {
      U32 *p = lineBreakPairs + i * 2;
      code[p[1]] = OP_BREAK;
   }
}

bool CodeBlock::setBreakpoint(U32 lineNumber)
{
   if (!lineBreakPairs)
      return false;

   for (U32 i = 0; i < lineBreakPairCount; i++)
   {
      U32 *p = lineBreakPairs + i * 2;
      if ((p[0] >> 8) == lineNumber)
      {
         code[p[1]] = OP_BREAK;
         return true;
      }
   }

   return false;
}

U32 CodeBlock::findFirstBreakLine(U32 lineNumber)
{
   if (!lineBreakPairs)
      return 0;

   for (U32 i = 0; i < lineBreakPairCount; i++)
   {
      U32 *p = lineBreakPairs + i * 2;
      U32 line = (p[0] >> 8);

      if (lineNumber <= line)
         return line;
   }

   return 0;
}

struct LinePair
{
   U32 instLine;
   U32 ip;
};

void CodeBlock::findBreakLine(U32 ip, U32 &line, U32 &instruction)
{
   U32 min = 0;
   U32 max = lineBreakPairCount - 1;
   LinePair *p = (LinePair *)lineBreakPairs;

   U32 found;
   if (!lineBreakPairCount || p[min].ip > ip || p[max].ip < ip)
   {
      line = 0;
      instruction = OP_INVALID;
      return;
   }
   else if (p[min].ip == ip)
      found = min;
   else if (p[max].ip == ip)
      found = max;
   else
   {
      for (;;)
      {
         if (min == max - 1)
         {
            found = min;
            break;
         }
         U32 mid = (min + max) >> 1;
         if (p[mid].ip == ip)
         {
            found = mid;
            break;
         }
         else if (p[mid].ip > ip)
            max = mid;
         else
            min = mid;
      }
   }
   instruction = p[found].instLine & 0xFF;
   line = p[found].instLine >> 8;
}

const char *CodeBlock::getFileLine(U32 ip)
{
   static char nameBuffer[256];
   U32 line, inst;
   findBreakLine(ip, line, inst);

   dSprintf(nameBuffer, sizeof(nameBuffer), "%s (%d)", name ? name : "<input>", line);
   return nameBuffer;
}

void CodeBlock::removeFromCodeList()
{
   for (CodeBlock **walk = &smCodeBlockList; *walk; walk = &((*walk)->nextFile))
   {
      if (*walk == this)
      {
         *walk = nextFile;

         // clear out all breakpoints
         clearAllBreaks();
         break;
      }
   }

   // Let the telnet debugger know that this code
   // block has been unloaded and that it needs to
   // remove references to it.
   if (TelDebugger)
      TelDebugger->clearCodeBlockPointers(this);
}

void CodeBlock::calcBreakList()
{
   U32 size = 0;
   S32 line = -1;
   U32 seqCount = 0;
   U32 i;
   for (i = 0; i < lineBreakPairCount; i++)
   {
      U32 lineNumber = lineBreakPairs[i * 2];
      if (lineNumber == U32(line + 1))
         seqCount++;
      else
      {
         if (seqCount)
            size++;
         size++;
         seqCount = 1;
      }
      line = lineNumber;
   }
   if (seqCount)
      size++;

   breakList = new U32[size];
   breakListSize = size;
   line = -1;
   seqCount = 0;
   size = 0;

   for (i = 0; i < lineBreakPairCount; i++)
   {
      U32 lineNumber = lineBreakPairs[i * 2];

      if (lineNumber == U32(line + 1))
         seqCount++;
      else
      {
         if (seqCount)
            breakList[size++] = seqCount;
         breakList[size++] = lineNumber - getMax(0, line) - 1;
         seqCount = 1;
      }

      line = lineNumber;
   }

   if (seqCount)
      breakList[size++] = seqCount;

   for (i = 0; i < lineBreakPairCount; i++)
   {
      U32 *p = lineBreakPairs + i * 2;
      p[0] = (p[0] << 8) | code[p[1]];
   }

   // Let the telnet debugger know that this code
   // block has been loaded and that it can add break
   // points it has for it.
   if (TelDebugger)
      TelDebugger->addAllBreakpoints(this);
}

bool CodeBlock::read(StringTableEntry fileName, Stream &st)
{
   const StringTableEntry exePath = Platform::getMainDotCsDir();
   const StringTableEntry cwd = Platform::getCurrentDirectory();

   name = fileName;

   if (fileName)
   {
      fullPath = NULL;

      if (Platform::isFullPath(fileName))
         fullPath = fileName;

      if (dStrnicmp(exePath, fileName, dStrlen(exePath)) == 0)
         name = StringTable->insert(fileName + dStrlen(exePath) + 1, true);
      else if (dStrnicmp(cwd, fileName, dStrlen(cwd)) == 0)
         name = StringTable->insert(fileName + dStrlen(cwd) + 1, true);

      if (fullPath == NULL)
      {
         char buf[1024];
         fullPath = StringTable->insert(Platform::makeFullPathName(fileName, buf, sizeof(buf)), true);
      }

      modPath = Con::getModNameFromPath(fileName);
   }

   //
   addToCodeList();

   U32 globalSize, size, i;
   st.read(&size);
   if (size)
   {
      globalStrings = new char[size];
      globalStringsMaxLen = size;
      st.read(size, globalStrings);
   }
   globalSize = size;
   st.read(&size);
   if (size)
   {
      functionStrings = new char[size];
      functionStringsMaxLen = size;
      st.read(size, functionStrings);
   }
   st.read(&size);
   if (size)
   {
      globalFloats = new F64[size];
      for (i = 0; i < size; i++)
         st.read(&globalFloats[i]);
   }
   st.read(&size);
   if (size)
   {
      functionFloats = new F64[size];
      for (i = 0; i < size; i++)
         st.read(&functionFloats[i]);
   }

   // Variable register mapping table
   st.read(&size);
   if (size)
   {
      for (i = 0; i < size; i++)
      {
         StringTableEntry fnName = st.readSTString();

         U32 count;
         st.read(&count);
         for (U32 j = 0; j < count; j++)
         {
            StringTableEntry varName = st.readSTString();

            variableRegisterTable.localVarToRegister[fnName].varList.push_back(varName);
         }
      }
   }

   U32 codeLength;
   st.read(&codeLength);
   st.read(&lineBreakPairCount);

   U32 totSize = codeLength + lineBreakPairCount * 2;
   code = new U32[totSize];

   // 0xFF is used as a flag to help compress the bytecode.
   // If detected, the bytecode is only a U8.
   for (i = 0; i < codeLength; i++)
   {
      U8 b;
      st.read(&b);
      if (b == 0xFF)
         st.read(&code[i]);
      else
         code[i] = b;
   }

   for (i = codeLength; i < totSize; i++)
      st.read(&code[i]);

   lineBreakPairs = code + codeLength;

   // StringTable-ize our identifiers.
   U32 identCount;
   st.read(&identCount);
   while (identCount--)
   {
      U32 offset;
      st.read(&offset);
      StringTableEntry ste;
      if (offset < globalSize)
         ste = StringTable->insert(globalStrings + offset);
      else
         ste = StringTable->EmptyString();
      U32 count;
      st.read(&count);
      while (count--)
      {
         U32 ip;
         st.read(&ip);
#if defined(TORQUE_CPU_X64) || defined(TORQUE_CPU_ARM64)
         *(U64*)(code + ip) = (U64)ste;
#else
         code[ip] = *((U32 *)&ste);
#endif
      }
   }

   if (lineBreakPairCount)
      calcBreakList();

   return true;
}


bool CodeBlock::compile(const char *codeFileName, StringTableEntry fileName, const char *inScript, bool overrideNoDso)
{
   AssertFatal(Con::isMainThread(), "Compiling code on a secondary thread");

   // This will return true, but return value is ignored
   char *script;
   chompUTF8BOM(inScript, &script);

   gSyntaxError = false;
   gIsEvalCompile = false;
   gFuncVars = NULL;

   consoleAllocReset();

   STEtoCode = compileSTEtoCode;

   gStatementList = NULL;

   // Set up the parser.
   smCurrentParser = getParserForFile(fileName);
   AssertISV(smCurrentParser, avar("CodeBlock::compile - no parser available for '%s'!", fileName));

   // Now do some parsing.
   smCurrentParser->setScanBuffer(script, fileName);
   smCurrentParser->restart(NULL);
   smCurrentParser->parse();

   if (gSyntaxError)
   {
      consoleAllocReset();
      return false;
   }

#ifdef TORQUE_NO_DSO_GENERATION
   if (!overrideNoDso)
      return false;
#endif // !TORQUE_NO_DSO_GENERATION

   FileStream st;
   if (!st.open(codeFileName, Torque::FS::File::Write))
      return false;
   st.write(U32(Con::DSOVersion));

   // Reset all our value tables...
   resetTables();

   smInFunction = false;

   CodeStream codeStream;
   U32 lastIp;
   if (gStatementList)
   {
      lastIp = compileBlock(gStatementList, codeStream, 0) + 1;
   }
   else
   {
      codeSize = 1;
      lastIp = 0;
   }

   codeStream.emit(OP_RETURN_VOID);
   codeStream.emitCodeStream(&codeSize, &code, &lineBreakPairs);

   lineBreakPairCount = codeStream.getNumLineBreaks();

   // Write string table data...
   getGlobalStringTable().write(st);
   getFunctionStringTable().write(st);

   // Write float table data...
   getGlobalFloatTable().write(st);
   getFunctionFloatTable().write(st);

   // write variable mapping table
   getFunctionVariableMappingTable().write(st);

   if (lastIp != codeSize)
      Con::errorf(ConsoleLogEntry::General, "CodeBlock::compile - precompile size mismatch, a precompile/compile function pair is probably mismatched.");

   U32 totSize = codeSize + codeStream.getNumLineBreaks() * 2;
   st.write(codeSize);
   st.write(lineBreakPairCount);

   // Write out our bytecode, doing a bit of compression for low numbers.
   U32 i;
   for (i = 0; i < codeSize; i++)
   {
      if (code[i] < 0xFF)
         st.write(U8(code[i]));
      else
      {
         st.write(U8(0xFF));
         st.write(code[i]);
      }
   }

   // Write the break info...
   for (i = codeSize; i < totSize; i++)
      st.write(code[i]);

   getIdentTable().write(st);

   consoleAllocReset();
   st.close();

   return true;
}

ConsoleValue CodeBlock::compileExec(StringTableEntry fileName, const char *inString, bool noCalls, S32 setFrame)
{
   AssertFatal(Con::isMainThread(), "Compiling code on a secondary thread");

   // Check for a UTF8 script file
   char *string;
   chompUTF8BOM(inString, &string);

   STEtoCode = evalSTEtoCode;
   consoleAllocReset();

   name = fileName;

   if (fileName)
   {
      const StringTableEntry exePath = Platform::getMainDotCsDir();
      const StringTableEntry cwd = Platform::getCurrentDirectory();

      fullPath = NULL;

      if (Platform::isFullPath(fileName))
         fullPath = fileName;

      if (dStrnicmp(exePath, fileName, dStrlen(exePath)) == 0)
         name = StringTable->insert(fileName + dStrlen(exePath) + 1, true);
      else if (dStrnicmp(cwd, fileName, dStrlen(cwd)) == 0)
         name = StringTable->insert(fileName + dStrlen(cwd) + 1, true);

      if (fullPath == NULL)
      {
         char buf[1024];
         fullPath = StringTable->insert(Platform::makeFullPathName(fileName, buf, sizeof(buf)), true);
      }

      modPath = Con::getModNameFromPath(fileName);
   }

   if (name)
      addToCodeList();

   gStatementList = NULL;
   
   // we are an eval compile if we don't have a file name associated (no exec)
   gIsEvalCompile = fileName == NULL;
   // In eval mode, global func vars are allowed.
   gFuncVars = gIsEvalCompile ? &gEvalFuncVars : NULL;

   // Set up the parser.
   smCurrentParser = getParserForFile(fileName);
   AssertISV(smCurrentParser, avar("CodeBlock::compile - no parser available for '%s'!", fileName));

   // Now do some parsing.
   smCurrentParser->setScanBuffer(string, fileName);
   smCurrentParser->restart(NULL);
   smCurrentParser->parse();

   if (!gStatementList)
   {
      delete this;
      return std::move(ConsoleValue());
   }

   resetTables();

   smInFunction = false;

   CodeStream codeStream;
   U32 lastIp = compileBlock(gStatementList, codeStream, 0);

   lineBreakPairCount = codeStream.getNumLineBreaks();

   globalStrings = getGlobalStringTable().build();
   globalStringsMaxLen = getGlobalStringTable().totalLen;

   functionStrings = getFunctionStringTable().build();
   functionStringsMaxLen = getFunctionStringTable().totalLen;

   globalFloats = getGlobalFloatTable().build();
   functionFloats = getFunctionFloatTable().build();

   variableRegisterTable = getFunctionVariableMappingTable().copy();

   codeStream.emit(OP_RETURN_VOID);
   codeStream.emitCodeStream(&codeSize, &code, &lineBreakPairs);
   
   S32 localRegisterCount = gIsEvalCompile ? gEvalFuncVars.count() : 0;

   consoleAllocReset();

#ifndef TORQUE_SHIPPING
   if (Con::getBoolVariable("$Debug::DumpByteCode"))
   {
      dumpInstructions();
   }
#endif

   if (lineBreakPairCount && fileName)
      calcBreakList();

   if (lastIp + 1 != codeSize)
      Con::warnf(ConsoleLogEntry::General, "precompile size mismatch, precompile: %d compile: %d", codeSize, lastIp);

   // repurpose argc as local register counter for global state
   return std::move(exec(0, fileName, NULL, localRegisterCount, 0, noCalls, NULL, setFrame));
}

//-------------------------------------------------------------------------

void CodeBlock::incRefCount()
{
   refCount++;
}

void CodeBlock::decRefCount()
{
   refCount--;
   if (!refCount)
      delete this;
}

//-------------------------------------------------------------------------

String CodeBlock::getFunctionArgs(U32 ip)
{
   StringBuilder str;

   StringTableEntry fnName = CodeToSTE(code, ip);
   StringTableEntry fnNamespace = CodeToSTE(code, ip + 2);
   StringTableEntry fnNsName = StringTable->insert(avar("%s::%s", fnNamespace, fnName));

   U32 fnArgc = code[ip + 8];
   for (U32 i = 0; i < fnArgc; ++i)
   {
      StringTableEntry var = variableRegisterTable.localVarToRegister[fnNsName].varList[i];

      if (i != 0)
         str.append(", ");

      str.append("string ");

      // Try to capture junked parameters
      if (var[0])
         str.append(var + 1);
      else
         str.append("JUNK");
   }

   return str.end();
}

//-------------------------------------------------------------------------

void CodeBlock::dumpInstructions(U32 startIp, bool upToReturn)
{
   U32 ip = startIp;
   smInFunction = false;
   U32 endFuncIp = 0;

   while (ip < codeSize)
   {
      if (ip > endFuncIp)
      {
         smInFunction = false;
      }

      switch (code[ip++])
      {

      case OP_FUNC_DECL:
      {
         StringTableEntry fnName = CodeToSTE(code, ip);
         StringTableEntry fnNamespace = CodeToSTE(code, ip + 2);
         StringTableEntry fnPackage = CodeToSTE(code, ip + 4);
         bool hasBody = bool(code[ip + 6]);
         U32 newIp = code[ip + 7];
         U32 argc = code[ip + 8];
         U32 regCount = code[ip + 9];
         endFuncIp = newIp;

         Con::printf("%i: OP_FUNC_DECL stk=+0 name=%s nspace=%s package=%s hasbody=%i newip=%i argc=%i regCount=%i",
            ip - 1, fnName, fnNamespace, fnPackage, hasBody, newIp, argc, regCount);

         // Skip args.

         ip += 10 + argc;
         smInFunction = true;
         break;
      }

      case OP_CREATE_OBJECT:
      {
         StringTableEntry objParent = CodeToSTE(code, ip);
         bool isDataBlock = code[ip + 2];
         bool isInternal = code[ip + 3];
         bool isSingleton = code[ip + 4];
         U32  lineNumber = code[ip + 5];
         U32 failJump = code[ip + 6];

         Con::printf("%i: OP_CREATE_OBJECT stk=+0 objParent=%s isDataBlock=%i isInternal=%i isSingleton=%i lineNumber=%i failJump=%i",
            ip - 1, objParent, isDataBlock, isInternal, isSingleton, lineNumber, failJump);

         ip += 7;
         break;
      }

      case OP_ADD_OBJECT:
      {
         bool placeAtRoot = code[ip++];
         const char* stk = placeAtRoot ? "+1" : "0";
         Con::printf("%i: OP_ADD_OBJECT stk=%s placeAtRoot=%i", ip - 1, stk, placeAtRoot);
         break;
      }

      case OP_END_OBJECT:
      {
         bool placeAtRoot = code[ip++];
         const char* stk = placeAtRoot ? "-1" : "0";
         Con::printf("%i: OP_END_OBJECT stk=%s placeAtRoot=%i", ip - 1, stk, placeAtRoot);
         break;
      }

      case OP_FINISH_OBJECT:
      {
         Con::printf("%i: OP_FINISH_OBJECT", ip - 1);
         break;
      }

      case OP_JMPIFFNOT:
      {
         Con::printf("%i: OP_JMPIFFNOT stk=-1 ip=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_JMPIFNOT:
      {
         Con::printf("%i: OP_JMPIFNOT stk=-1 ip=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_JMPIFF:
      {
         Con::printf("%i: OP_JMPIFF stk=-1 ip=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_JMPIF:
      {
         Con::printf("%i: OP_JMPIF stk=-1 ip=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_JMPIFNOT_NP:
      {
         Con::printf("%i: OP_JMPIFNOT_NP stk=-1 or 0 ip=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_JMPIF_NP:
      {
         Con::printf("%i: OP_JMPIF_NP stk=-1 or 0 ip=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_JMP:
      {
         Con::printf("%i: OP_JMP stk=0 ip=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_RETURN_VOID:
      {
         Con::printf("%i: OP_RETURN_VOID stk=0", ip - 1);

         if (upToReturn)
            return;

         break;
      }

      case OP_RETURN:
      {
         Con::printf("%i: OP_RETURN stk=-1", ip - 1);

         if (upToReturn)
            return;

         break;
      }

      case OP_RETURN_UINT:
      {
         Con::printf("%i: OP_RETURNUINT stk=-1", ip - 1);

         if (upToReturn)
            return;

         break;
      }

      case OP_RETURN_FLT:
      {
         Con::printf("%i: OP_RETURNFLT stk=-1", ip - 1);

         if (upToReturn)
            return;

         break;
      }

      case OP_CMPEQ:
      {
         Con::printf("%i: OP_CMPEQ stk=-1", ip - 1);
         break;
      }

      case OP_CMPGR:
      {
         Con::printf("%i: OP_CMPGR stk=-1", ip - 1);
         break;
      }

      case OP_CMPGE:
      {
         Con::printf("%i: OP_CMPGE stk=-1", ip - 1);
         break;
      }

      case OP_CMPLT:
      {
         Con::printf("%i: OP_CMPLT stk=-1", ip - 1);
         break;
      }

      case OP_CMPLE:
      {
         Con::printf("%i: OP_CMPLE stk=-1", ip - 1);
         break;
      }

      case OP_CMPNE:
      {
         Con::printf("%i: OP_CMPNE stk=-1", ip - 1);
         break;
      }

      case OP_XOR:
      {
         Con::printf("%i: OP_XOR stk=-1", ip - 1);
         break;
      }

      case OP_MOD:
      {
         Con::printf("%i: OP_MOD stk=-1", ip - 1);
         break;
      }

      case OP_BITAND:
      {
         Con::printf("%i: OP_BITAND stk=-1", ip - 1);
         break;
      }

      case OP_BITOR:
      {
         Con::printf("%i: OP_BITOR stk=-1", ip - 1);
         break;
      }

      case OP_NOT:
      {
         Con::printf("%i: OP_NOT stk=0", ip - 1);
         break;
      }

      case OP_NOTF:
      {
         Con::printf("%i: OP_NOTF stk=0", ip - 1);
         break;
      }

      case OP_ONESCOMPLEMENT:
      {
         Con::printf("%i: OP_ONESCOMPLEMENT stk=0", ip - 1);
         break;
      }

      case OP_SHR:
      {
         Con::printf("%i: OP_SHR stk=-1", ip - 1);
         break;
      }

      case OP_SHL:
      {
         Con::printf("%i: OP_SHL stk=-1", ip - 1);
         break;
      }

      case OP_AND:
      {
         Con::printf("%i: OP_AND stk=-1", ip - 1);
         break;
      }

      case OP_OR:
      {
         Con::printf("%i: OP_OR stk=-1", ip - 1);
         break;
      }

      case OP_ADD:
      {
         Con::printf("%i: OP_ADD stk=-1", ip - 1);
         break;
      }

      case OP_SUB:
      {
         Con::printf("%i: OP_SUB stk=-1", ip - 1);
         break;
      }

      case OP_MUL:
      {
         Con::printf("%i: OP_MUL stk=-1", ip - 1);
         break;
      }

      case OP_DIV:
      {
         Con::printf("%i: OP_DIV stk=-1", ip - 1);
         break;
      }

      case OP_NEG:
      {
         Con::printf("%i: OP_NEG stk=0", ip - 1);
         break;
      }

      case OP_INC:
      {
         Con::printf("%i: OP_INC stk=0 reg=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_SETCURVAR:
      {
         StringTableEntry var = CodeToSTE(code, ip);

         Con::printf("%i: OP_SETCURVAR stk=0 var=%s", ip - 1, var);
         ip += 2;
         break;
      }

      case OP_SETCURVAR_CREATE:
      {
         StringTableEntry var = CodeToSTE(code, ip);

         Con::printf("%i: OP_SETCURVAR_CREATE stk=0 var=%s", ip - 1, var);
         ip += 2;
         break;
      }

      case OP_SETCURVAR_ARRAY:
      {
         Con::printf("%i: OP_SETCURVAR_ARRAY stk=0", ip - 1);
         break;
      }

      case OP_SETCURVAR_ARRAY_CREATE:
      {
         Con::printf("%i: OP_SETCURVAR_ARRAY_CREATE stk=0", ip - 1);
         break;
      }

      case OP_LOADVAR_UINT:
      {
         Con::printf("%i: OP_LOADVAR_UINT stk=+1", ip - 1);
         break;
      }

      case OP_LOADVAR_FLT:
      {
         Con::printf("%i: OP_LOADVAR_FLT stk=+1", ip - 1);
         break;
      }

      case OP_LOADVAR_STR:
      {
         Con::printf("%i: OP_LOADVAR_STR stk=+1", ip - 1);
         break;
      }

      case OP_SAVEVAR_UINT:
      {
         Con::printf("%i: OP_SAVEVAR_UINT stk=0", ip - 1);
         break;
      }

      case OP_SAVEVAR_FLT:
      {
         Con::printf("%i: OP_SAVEVAR_FLT stk=0", ip - 1);
         break;
      }

      case OP_SAVEVAR_STR:
      {
         Con::printf("%i: OP_SAVEVAR_STR stk=0", ip - 1);
         break;
      }

      case OP_LOAD_LOCAL_VAR_UINT:
      {
         Con::printf("%i: OP_LOAD_LOCAL_VAR_UINT stk=+1 reg=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_LOAD_LOCAL_VAR_FLT:
      {
         Con::printf("%i: OP_LOAD_LOCAL_VAR_FLT stk=+1 reg=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_LOAD_LOCAL_VAR_STR:
      {
         Con::printf("%i: OP_LOAD_LOCAL_VAR_STR stk=+1 reg=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_SAVE_LOCAL_VAR_UINT:
      {
         Con::printf("%i: OP_SAVE_LOCAL_VAR_UINT stk=0 reg=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_SAVE_LOCAL_VAR_FLT:
      {
         Con::printf("%i: OP_SAVE_LOCAL_VAR_FLT stk=0 reg=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_SAVE_LOCAL_VAR_STR:
      {
         Con::printf("%i: OP_SAVE_LOCAL_VAR_STR stk=0 reg=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_SETCUROBJECT:
      {
         Con::printf("%i: OP_SETCUROBJECT stk=0", ip - 1);
         break;
      }

      case OP_SETCUROBJECT_NEW:
      {
         Con::printf("%i: OP_SETCUROBJECT_NEW stk=0", ip - 1);
         break;
      }

      case OP_SETCUROBJECT_INTERNAL:
      {
         Con::printf("%i: OP_SETCUROBJECT_INTERNAL stk=0", ip - 1);
         ++ip;
         break;
      }

      case OP_SETCURFIELD:
      {
         StringTableEntry curField = CodeToSTE(code, ip);
         Con::printf("%i: OP_SETCURFIELD stk=0 field=%s", ip - 1, curField);
         ip += 2;
         break;
      }

      case OP_SETCURFIELD_ARRAY:
      {
         Con::printf("%i: OP_SETCURFIELD_ARRAY stk=0", ip - 1);
         break;
      }

      case OP_SETCURFIELD_TYPE:
      {
         U32 type = code[ip];
         Con::printf("%i: OP_SETCURFIELD_TYPE stk=0 type=%i", ip - 1, type);
         ++ip;
         break;
      }

      case OP_LOADFIELD_UINT:
      {
         Con::printf("%i: OP_LOADFIELD_UINT stk=+1", ip - 1);
         break;
      }

      case OP_LOADFIELD_FLT:
      {
         Con::printf("%i: OP_LOADFIELD_FLT stk=+1", ip - 1);
         break;
      }

      case OP_LOADFIELD_STR:
      {
         Con::printf("%i: OP_LOADFIELD_STR stk=+1", ip - 1);
         break;
      }

      case OP_SAVEFIELD_UINT:
      {
         Con::printf("%i: OP_SAVEFIELD_UINT stk=0", ip - 1);
         break;
      }

      case OP_SAVEFIELD_FLT:
      {
         Con::printf("%i: OP_SAVEFIELD_FLT stk=0", ip - 1);
         break;
      }

      case OP_SAVEFIELD_STR:
      {
         Con::printf("%i: OP_SAVEFIELD_STR stk=0", ip - 1);
         break;
      }

      case OP_POP_STK:
      {
         Con::printf("%i: OP_POP_STK stk=-1", ip - 1);
         break;
      }

      case OP_LOADIMMED_UINT:
      {
         U32 val = code[ip];
         Con::printf("%i: OP_LOADIMMED_UINT stk=+1 val=%i", ip - 1, val);
         ++ip;
         break;
      }

      case OP_LOADIMMED_FLT:
      {
         F64 val = (smInFunction ? functionFloats : globalFloats)[code[ip]];
         Con::printf("%i: OP_LOADIMMED_FLT stk=+1 val=%f", ip - 1, val);
         ++ip;
         break;
      }

      case OP_TAG_TO_STR:
      {
         const char* str = (smInFunction ? functionStrings : globalStrings) + code[ip];
         Con::printf("%i: OP_TAG_TO_STR stk=0 str=%s", ip - 1, str);
         Con::printf("    OP_LOADIMMED_STR stk=+1 (fallthrough)");
         ++ip;
         break;
      }

      case OP_LOADIMMED_STR:
      {
         const char* str = (smInFunction ? functionStrings : globalStrings) + code[ip];
         Con::printf("%i: OP_LOADIMMED_STR stk=+1 str=%s", ip - 1, str);
         ++ip;
         break;
      }

      case OP_DOCBLOCK_STR:
      {
         const char* str = (smInFunction ? functionStrings : globalStrings) + code[ip];
         Con::printf("%i: OP_DOCBLOCK_STR stk=0 str=%s", ip - 1, str);
         ++ip;
         break;
      }

      case OP_LOADIMMED_IDENT:
      {
         StringTableEntry str = CodeToSTE(code, ip);
         Con::printf("%i: OP_LOADIMMED_IDENT stk=+1 str=%s", ip - 1, str);
         ip += 2;
         break;
      }

      case OP_CALLFUNC:
      {
         StringTableEntry fnNamespace = CodeToSTE(code, ip + 2);
         StringTableEntry fnName = CodeToSTE(code, ip);
         U32 callType = code[ip + 4];

         StringTableEntry callTypeName;
         switch (callType)
         {
         case FuncCallExprNode::FunctionCall: callTypeName = "FunctionCall"; break;
         case FuncCallExprNode::MethodCall:   callTypeName = "MethodCall"; break;
         case FuncCallExprNode::ParentCall:   callTypeName = "ParentCall"; break;
         case FuncCallExprNode::StaticCall:   callTypeName = "StaticCall"; break;
         }

         Con::printf("%i: OP_CALLFUNC stk=+1 name=%s nspace=%s callType=%s", ip - 1, fnName, fnNamespace, callTypeName);

         ip += 5;
         break;
      }

      case OP_ADVANCE_STR_APPENDCHAR:
      {
         char ch = code[ip];
         Con::printf("%i: OP_ADVANCE_STR_APPENDCHAR stk=0 char=%c", ip - 1, ch);
         ++ip;
         break;
      }

      case OP_REWIND_STR:
      {
         Con::printf("%i: OP_REWIND_STR stk=0", ip - 1);
         Con::printf("    OP_TERMINATE_REWIND_STR stk=-1 (fallthrough)");
         break;
      }

      case OP_TERMINATE_REWIND_STR:
      {
         Con::printf("%i: OP_TERMINATE_REWIND_STR stk=-1", ip - 1);
         break;
      }

      case OP_COMPARE_STR:
      {
         Con::printf("%i: OP_COMPARE_STR stk=-1", ip - 1);
         break;
      }

      case OP_PUSH:
      {
         Con::printf("%i: OP_PUSH stk=-1", ip - 1);
         break;
      }

      case OP_PUSH_FRAME:
      {
         Con::printf("%i: OP_PUSH_FRAME stk=0 count=%i", ip - 1, code[ip]);
         ++ip;
         break;
      }

      case OP_ASSERT:
      {
         const char* message = (smInFunction ? functionStrings : globalStrings) + code[ip];
         Con::printf("%i: OP_ASSERT stk=-1 message=%s", ip - 1, message);
         ++ip;
         break;
      }

      case OP_BREAK:
      {
         Con::printf("%i: OP_BREAK stk=0", ip - 1);
         break;
      }

      case OP_ITER_BEGIN:
      {
         bool isGlobal = code[ip];
         if (isGlobal)
         {
            StringTableEntry varName = CodeToSTE(code, ip + 1);
            U32 failIp = code[ip + 3];

            Con::printf("%i: OP_ITER_BEGIN stk=0 varName=%s failIp=%i isGlobal=%s", ip - 1, varName, failIp, "true");

            ip += 4;
         }
         else
         {
            S32 reg = code[ip + 1];
            U32 failIp = code[ip + 2];

            Con::printf("%i: OP_ITER_BEGIN stk=0 varRegister=%d failIp=%i isGlobal=%s", ip - 1, reg, failIp, "false");

            ip += 3;
         }
         break;
      }

      case OP_ITER_BEGIN_STR:
      {
         bool isGlobal = code[ip];
         if (isGlobal)
         {
            StringTableEntry varName = CodeToSTE(code, ip + 1);
            U32 failIp = code[ip + 3];

            Con::printf("%i: OP_ITER_BEGIN_STR stk=0 varName=%s failIp=%i isGlobal=%s", ip - 1, varName, failIp, "true");
            Con::printf("    OP_ITER_BEGIN stk=0 (fallthrough)");

            ip += 4;
         }
         else
         {
            S32 reg = code[ip + 1];
            U32 failIp = code[ip + 2];

            Con::printf("%i: OP_ITER_BEGIN_STR stk=0 varRegister=%d failIp=%i isGlobal=%s", ip - 1, reg, failIp, "false");
            Con::printf("    OP_ITER_BEGIN stk=0 (fallthrough)");

            ip += 3;
         }

         break;
      }

      case OP_ITER:
      {
         U32 breakIp = code[ip];

         Con::printf("%i: OP_ITER stk=0 breakIp=%i", ip - 1, breakIp);

         ++ip;
         break;
      }

      case OP_ITER_END:
      {
         Con::printf("%i: OP_ITER_END stk=-1", ip - 1);
         break;
      }

      default:
         Con::printf("%i: !!INVALID!!", ip - 1);
         break;
      }
   }

   smInFunction = false;
}