private void ParseVariableDeclaration()
{
while (file.Match(new byte[] { 0x00, 0x02 }))
{
if (file.IsMatch(new byte[] { 0x00 }) ||
file.IsMatch(new byte[] { 0x01 }) ||
file.IsMatch(new byte[] { 0x02 }) ||
file.IsMatch(new byte[] { 0x03 }) ||
file.IsMatch(new byte[] { 0x04 }) ||
file.IsMatch(new byte[] { 0x05 }) ||
file.IsMatch(new byte[] { 0x06 }) ||
file.IsMatch(new byte[] { 0x07 }) ||
file.IsMatch(new byte[] { 0x08 }))
{
CotophaAST.CotophaVariable obj = new CotophaAST.CotophaVariable();
byte typeId = file.ReadByte();
obj.context = 0;
obj.type = typeId;
if (typeId == 0)
{
obj.objectName = GetConstString();
//Console.WriteLine("PUSHCONST {0} {1:x2} {2} {3:x8}", variableTypes[typeId], objectNameLen, FindConstString(curOffset, imageOffset), unk3);
}
obj.name = file.ReadString();
functions.Last().stack.Add(obj);
}
else
{
Console.WriteLine("Inspect code located at 0x{0:x8}", (int)file.GetPosition() - 1);
Environment.Exit(1);
}
ParseExpression();
}
}
private void ParseExpression()
{
ParseVariableDeclaration();
if (showDebug)
{
Console.WriteLine("pos[{0:x8}] op[{1:x2}]", file.GetPosition(), file.PeekByte());
}
if (file.Match(new byte[] { 0x02, 0x02, 0x01 })) // push "this"
{
CotophaAST.CotophaVariable obj = new CotophaAST.CotophaVariable();
obj.name = "this";
functions.Last().stack.Add(obj);
}
else if (file.Match(new byte[] { 0x02, 0x03, 0x04 })) // push global variable
{
functions.Last().stack.Add(GetGlobalVariable());
}
else if (file.Match(new byte[] { 0x02, 0x02, 0x06 }))
{
// variable initialization
string variableName = file.ReadString();
bool hasParent = false;
bool hasThis = false;
if (variableName == "parent")
{
hasParent = true;
}
foreach (var cmd in functions.Last().arguments)
{
if (cmd.argumentName == "this")
{
hasThis = true;
break;
}
}
CotophaAST.CotophaVariable obj = new CotophaAST.CotophaVariable();
byte typeId = 0;
bool hasType = true;
obj.hasValue = true;
if (hasParent)
{
obj.objectName = "parent";
}
else
{
obj.objectName = "this";
}
obj.name = variableName;
obj.type = typeId;
if (obj.objectName == "parent")
{
obj.type = 0;
obj.showType = false;
}
if (file.Match(new byte[] { 0x02, 0x00 }))
{
typeId = file.ReadByte();
//functions.Last().stack.Last().Print();
//obj.Print();
if (typeId == 0) // object
{
obj.stringValue = GetConstString();
}
else if (typeId == 4) // integer
{
obj.intValue = file.ReadInt32();
}
else if (typeId == 5) // real
{
obj.realValue = file.ReadDouble();
}
else if (typeId == 6) // string
{
obj.stringValue = file.ReadString();
}
else
{
functions.Last().stack.Last().Print();
Console.WriteLine("Unhandled variable assignment: stringValue type id {0} at 0x{1:x8}",
typeId,
(int)file.GetPosition());
Environment.Exit(1);
}
}
else
{
obj.hasValue = false;
obj.showType = false;
}
functions.Last().stack.Add(obj);
}
else if (file.Match(new byte[] { 0x0b })) // subscript index
{
if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaVariable))
{
var obj = (CotophaAST.CotophaVariable)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var idxObj = new CotophaAST.CotophaInteger();
idxObj.intValue = obj.intValue;
obj.SetIndex(idxObj);
obj.hasValue = false;
//obj.showType = false;
functions.Last().stack.Add(obj);
}
else if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaInteger))
{
var obj1 = (CotophaAST.CotophaInteger)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var obj2 = (CotophaAST.CotophaVariable)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var obj3 = new CotophaAST.CotophaVariable();
var idxObj = new CotophaAST.CotophaInteger();
idxObj.intValue = obj1.intValue;
obj3.SetIndex(idxObj);
obj3.name = obj2.name;
obj3.type = 4;
obj3.showType = false;
obj3.hasValue = false;
functions.Last().stack.Add(obj3);
}
else if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaString))
{
var obj3 = new CotophaAST.CotophaVariable();
var obj1 = (CotophaAST.CotophaString)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
obj3.type = 4;
obj3.showType = false;
obj3.hasValue = false;
obj3.SetIndex(obj1);
if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaString))
{
var obj2 = (CotophaAST.CotophaString)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
obj3.name = obj2.stringValue;
}
else if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaVariable))
{
var obj2 = (CotophaAST.CotophaVariable)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
obj3.name = obj2.name;
}
functions.Last().stack.Add(obj3);
}
else
{
Console.WriteLine("Don't know how to handle type {0}", functions.Last().stack.Last().objType);
Environment.Exit(1);
}
}
else if (file.Match(new byte[] { 0x02, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00 })) // EndFunc
{
functions.Last().isStruct = false;
//functions.Last().Print();
}
else if (file.Match(new byte[] { 0x02, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x09, 0x01 })) // EndStruct
{
functions.Last().isStruct = true;
//functions.Last().Print();
}
else if (file.Match(new byte[] { 0x09, 0x00 })) // return
{
CotophaAST.CotophaReturn obj = new CotophaAST.CotophaReturn();
var lastObject = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
obj.returnObject = lastObject;
//obj.returnObject.Print();
functions.Last().stack.Add(obj);
}
else if (file.Match(new byte[] { 0x09, 0x01 })) // end of file
{
endOfFile = true;
}
else if (file.Match(new byte[] { 0x02, 0x00, 0x00 })) // object
{
string value = GetConstString();
;
CotophaAST.CotophaObject obj = new CotophaAST.CotophaObject();
obj.stringValue = value;
functions.Last().stack.Add(obj);
}
else if (file.Match(new byte[] { 0x02, 0x00, 0x04 })) // integer
{
int value = file.ReadInt32();
CotophaAST.CotophaInteger obj = new CotophaAST.CotophaInteger();
obj.intValue = value;
functions.Last().stack.Add(obj);
}
else if (file.Match(new byte[] { 0x02, 0x00, 0x05 })) // real
{
double value = file.ReadDouble();
CotophaAST.CotophaReal obj = new CotophaAST.CotophaReal();
obj.realValue = value;
functions.Last().stack.Add(obj);
}
else if (file.Match(new byte[] { 0x02, 0x00, 0x06 })) // string
{
string value = file.ReadString();
CotophaAST.CotophaString obj = new CotophaAST.CotophaString();
obj.stringValue = value;
functions.Last().stack.Add(obj);
}
else if (file.Match(new byte[] { 0x02, 0x01, 0x04 })) // variable reference
{
int idx = file.ReadInt32();
int variableCount = 0;
CotophaAST.CotophaVariable variableName = new CotophaAST.CotophaVariable();
bool found = false;
foreach (var cmd in functions.Last().variables)
{
if (idx == variableCount)
{
variableName.name = cmd.name;
found = true;
break;
}
variableCount++;
}
if (!found)
{
functions.Last().Print();
Console.WriteLine("Could not find variable");
Environment.Exit(1);
}
functions.Last().stack.Add(variableName);
}
else if (file.Match(new byte[] { 0x0a, 0x06 })) // member variable
{
if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaString))
{
var obj2 = (CotophaAST.CotophaString)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
string name = GetConstString();
//functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
obj2.stringValue += "." + name;
obj2.Print();
functions.Last().stack.Add(obj2);
}
else if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaVariable))
{
var obj2 = (CotophaAST.CotophaVariable)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
string name = GetConstString();
//functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var nameObject = new CotophaAST.CotophaString();
nameObject.stringValue = name;
obj2.leftObject = nameObject;
functions.Last().stack.Add(obj2);
}
else
{
Console.WriteLine("Unexpected left name type: {0}", functions.Last().stack.Last().objType);
Environment.Exit(1);
}
}
else if (file.Match(new byte[] { 0x03, 0xff }))
{
//Console.WriteLine("Reached 0x03 0xff {0:x2}", file.PeekByte());
bool showType = !file.Match(new byte[] { 0x01 });
var obj = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaVariable))
{
var obj2 = (CotophaAST.CotophaVariable)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
obj2.hasValue = true;
obj2.showType = showType;
obj2.rightObject = obj;
functions.Last().stack.Add(obj2);
//obj2.Print();
}
else if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaString))
{
var obj2 = (CotophaAST.CotophaString)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var obj3 = new CotophaAST.CotophaVariable();
obj3.name = obj2.stringValue;
obj3.hasValue = true;
obj3.showType = showType;
obj3.rightObject = obj;
functions.Last().stack.Add(obj3);
//obj3.Print();
}
else if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaReal))
{
var obj2 = (CotophaAST.CotophaReal)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var obj3 = new CotophaAST.CotophaCall();
obj3.left = "Real";
obj3.args.Add(obj);
functions.Last().stack.Add(obj3);
}
else
{
Console.WriteLine("Unexpected left hand type: {0}", functions.Last().stack.Last().objType);
Environment.Exit(1);
}
if (file.Match(new byte[] { 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 })) // repeat
{
functions.Last().stack.Add(new CotophaAST.CotophaRepeatStatement());
ParseVariableDeclaration();
}
}
else if (file.Match(new byte[] { 0x00, 0x01 })) // local variable
{
if (file.IsMatch(new byte[] { 0x00 }) ||
file.IsMatch(new byte[] { 0x01 }) ||
file.IsMatch(new byte[] { 0x02 }) ||
file.IsMatch(new byte[] { 0x03 }) ||
file.IsMatch(new byte[] { 0x04 }) ||
file.IsMatch(new byte[] { 0x05 }) ||
file.IsMatch(new byte[] { 0x06 }) ||
file.IsMatch(new byte[] { 0x07 }) ||
file.IsMatch(new byte[] { 0x08 }))
{
CotophaAST.CotophaVariable obj = new CotophaAST.CotophaVariable();
byte typeId = file.ReadByte();
obj.context = 0;
obj.type = typeId;
if (typeId == 0)
{
obj.objectName = GetConstString();
}
obj.name = file.ReadString();
functions.Last().stack.Add(obj);
}
else
{
Console.WriteLine("Handle non-0x02 0x00 case in 0x00 0x01 @ 0x{0:x8}", (int)file.GetPosition() - 1);
Environment.Exit(1);
}
}
else if (file.Match(new byte[] { 0x03 })) // assignment operation
{
CotophaAST.CotophaAssignment assignment = new CotophaAST.CotophaAssignment();
int op = file.ReadByte();
var obj1 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var obj2 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
//Console.Write("0x03 obj1: ");
//obj1.Print();
//Console.Write("0x03 obj2: ");
//obj2.Print();
assignment.op = op;
assignment.leftObject = obj2;
assignment.rightObject = obj1;
functions.Last().stack.Add(assignment);
//assignment.Print();
}
else if (file.Match(new byte[] { 0x0c })) // math operation
{
CotophaAST.CotophaMathOp mathop = new CotophaAST.CotophaMathOp();
int op = file.ReadByte();
var obj1 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var obj2 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
//Console.Write("0x0c obj1: ");
//obj1.Print();
//Console.Write("0x0c obj2: ");
//obj2.Print();
mathop.op = op;
mathop.leftObject = obj2;
mathop.rightObject = obj1;
functions.Last().stack.Add(mathop);
//mathop.Print();
}
else if (file.Match(new byte[] { 0x0e })) // comparison operation
{
CotophaAST.CotophaComparison comparison = new CotophaAST.CotophaComparison();
int op = file.ReadByte();
var obj1 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
var obj2 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
comparison.op = op;
comparison.leftObject = obj2;
comparison.rightObject = obj1;
functions.Last().stack.Add(comparison);
}
else if (file.Match(new byte[] { 0x07, 0x00 }))
{
int blockSize = file.ReadInt32();
long currentPosition = file.GetPosition();
var comparisonObj = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
if (functions.Last().stack.Count > 0 &&
functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaElseIfStatement))
{
CotophaAST.CotophaElseIfStatement obj =
(CotophaAST.CotophaElseIfStatement)functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
obj.leftObject = comparisonObj;
functions.Last().stack.Add(obj);
}
else
{
//Console.WriteLine("If statement {0:x8} ({0} bytes) in length", blockSize);
CotophaAST.CotophaIfStatement obj = new CotophaAST.CotophaIfStatement();
obj.leftObject = comparisonObj;
functions.Last().stack.Add(obj);
}
if (blockSize < 0)
{
return;
}
do
{
ParseExpression();
} while (file.GetPosition() - currentPosition < blockSize);
if (file.GetPosition() - currentPosition == blockSize)
{
functions.Last().stack.Add(new CotophaAST.CotophaEndIfStatement());
}
else
{
Console.WriteLine("If block wrong size: {2:x8} {0:x8} {1:x8}", file.GetPosition() - currentPosition, blockSize, file.GetPosition());
Environment.Exit(1);
}
}
else if (file.Match(new byte[] { 0x06 }))
{
int blockSize = file.ReadInt32();
long currentPosition = file.GetPosition();
if (functions.Last().stack.Last().objType == typeof(CotophaAST.CotophaEndIfStatement))
{
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
functions.Last().stack.Add(new CotophaAST.CotophaElseIfStatement());
}
//Console.WriteLine("ElseIf statement {0:x8} ({0} bytes) in length", blockSize);
return;
/*
* Console.WriteLine("{0:x8} {1:x2}", file.GetPosition(), file.PeekByte());
* functions.Last().Print();
*
* Environment.Exit(1);
*/
}
else if (file.Match(new byte[] { 0x08, 0x02 })) // member function
{
int arguments = file.ReadInt32();
string name = GetConstString();
CotophaAST.CotophaCall obj = new CotophaAST.CotophaCall();
obj.left = name;
for (int i = 0; i < arguments; i++)
{
var obj2 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
if (i + 1 < arguments)
{
obj.args.Add(obj2);
}
else
{
obj.leftObject = obj2;
}
}
obj.args.Reverse();
functions.Last().stack.Add(obj);
//file.Match(new byte[] {0x03, 0xff, 0x01});
}
else if (file.Match(new byte[] { 0x08 }))
{
byte type = file.ReadByte();
int arguments = file.ReadInt32();
string name = GetConstString();
CotophaAST.CotophaCall obj = new CotophaAST.CotophaCall();
obj.left = name;
obj.right = "";
CotophaAST.CotophaAssignment assignment = new CotophaAST.CotophaAssignment();
assignment.op = 8;
/*
* if (functions.Last().stack.Count != 1)
* {
* assignment.leftObject = functions.Last().stack.Last();
* functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
* }
*/
for (int i = 0; i < arguments; i++)
{
var obj2 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
if (assignment.leftObject != null)
{
if (i + 1 < arguments)
{
obj.args.Add(obj2);
}
else
{
obj.leftObject = obj2;
}
}
else
{
obj.args.Add(obj2);
}
}
if (assignment.leftObject != null)
{
assignment.rightObject = obj;
functions.Last().stack.Add(assignment);
//assignment.Print();
}
else
{
functions.Last().stack.Add(obj);
//obj.Print();
}
//file.Match(new byte[] {0x03, 0xff, 0x01});
}
else if (file.Match(new byte[] { 0x05 })) // until
{
var obj = new CotophaAST.CotophaUntilStatement();
do
{
ParseExpression();
} while (!file.IsMatch(new byte[] { 0x07, 0x00 }));
ParseExpression(); // if statement
if (functions.Last().stack.Last().objType != typeof(CotophaAST.CotophaIfStatement))
{
Console.WriteLine("Unexpected type on right of Until. Found {0}", functions.Last().stack.Last().objType);
Environment.Exit(1);
}
var obj2 = functions.Last().stack.Last();
functions.Last().stack.RemoveAt(functions.Last().stack.Count - 1);
obj.rightObject = obj2.leftObject;
functions.Last().stack.Add(obj);
}
else if (file.Match(new byte[] { 0x01 })) // ?
{
//Console.WriteLine("0x01, ignoring...");
}
else
{
/*
* Console.WriteLine("{0:x8} {1:x2}", file.GetPosition(), file.PeekByte());
* Console.WriteLine("Don't know where to go from here");
* Environment.Exit(1);
*/
return;
}
//ParseExpression();
if (showDebug)
{
if (functions.Last().stack.Count > 0)
{
Console.Write("{0} -> ", functions.Last().stack.Last().objType);
functions.Last().stack.Last().Print();
}
functions.Last().Print();
}
}