public bool Open()
{
if (File.Exists(FClassFileName))
{
try
{
// read the .class file systematically
FileStream fs = new FileStream(FClassFileName, FileMode.Open, FileAccess.Read);
FReader = new BinaryReader(fs);
// read header
FMagic = Common.ReadDWord(FReader);
if (FMagic != 0x0CAFEBABE)
return false;
FMinorVersion = Common.ReadWord(FReader);
FMajorVersion = Common.ReadWord(FReader);
// read constant pool
// this also reads the "FConstantPoolCount"
// so instead use FConstantPool.MaxItems or somesuch
FConstantPool = new TConstantPool(FReader);
// more constants
FAccessFlags = (AccessFlags)Common.ReadWord(FReader);
FThisClass = Common.ReadWord(FReader);
FThisClass--;
FSuperClass = Common.ReadWord(FReader);
FSuperClass--;
FThisClassName = ((ConstantClassInfo)FConstantPool.Item(FThisClass)).Name;
(FConstantPool.Item(FThisClass)).References++;
FSuperClassName = ((ConstantClassInfo)FConstantPool.Item(FSuperClass)).Name;
(FConstantPool.Item(FSuperClass)).References++;
FInterfaces = new TInterfaces(FReader, FConstantPool);
FFields = new TFields(FReader, FConstantPool);
FMethods = new TMethods(FReader, FConstantPool);
FAttributes = new TAttributes(FReader, FConstantPool);
//FHasBeenOpened = true;
fs.Close();
return true;
}
catch (Exception e)
{
// catch any unhandled exceptions here
// and exit gracefully.
// garbage collection does the rest ;D
return false;
}
}
return false;
}
public TMethods(BinaryReader Reader, TConstantPool ConstantPool)
{
FReader = Reader;
FMaxItems = Common.ReadWord(FReader);
FItems = new ArrayList();
int count = 0;
// goes from 1 -> fieldcount - 1
while (count < FMaxItems)
{
MethodInfo mi = new MethodInfo(FReader, ConstantPool);
FItems.Add(mi);
count++;
}
}
public TInterfaces(BinaryReader Reader, TConstantPool ConstantPool)
{
FReader = Reader;
FMaxItems = Common.ReadWord(FReader) - 1;
FItems = new ArrayList();
int count = 0;
// goes from 1 -> interfacecount - 1
while (count <= FMaxItems)
{
InterfaceInfo ii = new InterfaceInfo(FReader, ConstantPool);
FItems.Add(ii);
count++;
}
}
public bool Open()
{
if (File.Exists(FClassFileName))
{
try
{
// read the .class file systematically
FileStream fs = new FileStream(FClassFileName, FileMode.Open, FileAccess.Read);
FReader = new BinaryReader(fs);
// read header
FMagic = Common.ReadDWord(FReader);
if (FMagic != 0x0CAFEBABE)
return false;
FMinorVersion = Common.ReadWord(FReader);
FMajorVersion = Common.ReadWord(FReader);
// read constant pool
// this also reads the "FConstantPoolCount"
// so instead use FConstantPool.MaxItems or somesuch
FConstantPool = new TConstantPool(FReader);
// more constants
FAccessFlags = (AccessFlags)Common.ReadWord(FReader);
FThisClass = Common.ReadWord(FReader);
FThisClass--;
FSuperClass = Common.ReadWord(FReader);
FSuperClass--;
FThisClassName = ((ConstantClassInfo)FConstantPool.Item(FThisClass)).Name;
(FConstantPool.Item(FThisClass)).References++;
FSuperClassName = ((ConstantClassInfo)FConstantPool.Item(FSuperClass)).Name;
(FConstantPool.Item(FSuperClass)).References++;
FInterfaces = new TInterfaces(FReader, FConstantPool);
FFields = new TFields(FReader, FConstantPool);
FMethods = new TMethods(FReader, FConstantPool);
FAttributes = new TAttributes(FReader, FConstantPool);
//FHasBeenOpened = true;
fs.Close();
return true;
}
catch (Exception e)
{
// catch any unhandled exceptions here
// and exit gracefully.
// garbage collection does the rest ;D
return false;
}
}
return false;
}
public TMethods(BinaryReader Reader, TConstantPool ConstantPool)
{
FReader = Reader;
FMaxItems = Common.ReadWord(FReader);
FItems = new ArrayList();
int count = 0;
// goes from 1 -> fieldcount - 1
while (count < FMaxItems)
{
MethodInfo mi = new MethodInfo(FReader, ConstantPool);
FItems.Add(mi);
count++;
}
}
public TInterfaces(BinaryReader Reader, TConstantPool ConstantPool)
{
FReader = Reader;
FMaxItems = Common.ReadWord(FReader) - 1;
FItems = new ArrayList();
int count = 0;
// goes from 1 -> interfacecount - 1
while (count <= FMaxItems)
{
InterfaceInfo ii = new InterfaceInfo(FReader, ConstantPool);
FItems.Add(ii);
count++;
}
}
public TAttributes(BinaryReader Reader, TConstantPool ConstantPool)
{
FReader = Reader;
FMaxItems = Common.ReadWord(FReader) - 1;
FItems = new ArrayList();
int count = 0;
// goes from 1 -> attributescount - 1
while (count <= FMaxItems)
{
ushort NameIndex = Common.ReadWord(FReader);
NameIndex--;
ConstantUtf8Info Name = (ConstantUtf8Info)ConstantPool.Item(NameIndex);
switch (Name.Value)
{
case AttributeType.Code:
{
CodeAttributeInfo ai = new CodeAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.ConstantValue:
{
ConstantValueAttributeInfo ai = new ConstantValueAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.Deprecated:
{
DeprecatedAttributeInfo ai = new DeprecatedAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.Exceptions:
{
ExceptionsAttributeInfo ai = new ExceptionsAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.InnerClasses:
{
InnerClassesAttributeInfo ai = new InnerClassesAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.LineNumberTable:
{
LineNumberAttributeInfo ai = new LineNumberAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.LocalVariableTable:
{
LocalVariablesAttributeInfo ai = new LocalVariablesAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.SourceFile:
{
SourceFileAttributeInfo ai = new SourceFileAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.Synthetic:
{
SyntheticAttributeInfo ai = new SyntheticAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
default:
{
AttributeInfo ai = new UnknownAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
}
count++;
}
}
public TAttributes(BinaryReader Reader, TConstantPool ConstantPool)
{
FReader = Reader;
FMaxItems = Common.ReadWord(FReader) - 1;
FItems = new ArrayList();
int count = 0;
// goes from 1 -> attributescount - 1
while (count <= FMaxItems)
{
ushort NameIndex = Common.ReadWord(FReader);
NameIndex--;
ConstantUtf8Info Name = (ConstantUtf8Info)ConstantPool.Item(NameIndex);
switch (Name.Value)
{
case AttributeType.Code:
{
CodeAttributeInfo ai = new CodeAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.ConstantValue:
{
ConstantValueAttributeInfo ai = new ConstantValueAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.Deprecated:
{
DeprecatedAttributeInfo ai = new DeprecatedAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.Exceptions:
{
ExceptionsAttributeInfo ai = new ExceptionsAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.InnerClasses:
{
InnerClassesAttributeInfo ai = new InnerClassesAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.LineNumberTable:
{
LineNumberAttributeInfo ai = new LineNumberAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.LocalVariableTable:
{
LocalVariablesAttributeInfo ai = new LocalVariablesAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.SourceFile:
{
SourceFileAttributeInfo ai = new SourceFileAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
case AttributeType.Synthetic:
{
SyntheticAttributeInfo ai = new SyntheticAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
default:
{
AttributeInfo ai = new UnknownAttributeInfo(NameIndex, FReader, ConstantPool);
FItems.Add(ai);
break;
}
}
count++;
}
}
