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|
using System;
using System.IO;
using System.Collections;
using System.Text;
using System.Reflection;
namespace PEAPI {
#region Enums
/// <summary>
/// flags for the assembly (.corflags)
/// </summary>
public enum CorFlags {CF_IL_ONLY = 1, CF_32_BITREQUIRED = 2,
CF_STRONGNAMESIGNED = 8, CF_TRACKDEBUGDATA = 0x10000 }
/// <summary>
/// subsystem for the assembly (.subsystem)
/// </summary>
public enum SubSystem { Native = 1, Windows_GUI = 2,
Windows_CUI = 3, OS2_CUI = 5, POSIX_CUI = 7, Native_Windows = 8,
Windows_CE_GUI = 9}
/// <summary>
/// Hash algorithms for the assembly
/// </summary>
public enum HashAlgorithm { None, SHA1 }
/// <summary>
/// Attributes for this assembly
/// </summary>
public enum AssemAttr { Retargetable = 0x100, EnableJITCompileTracking = 0x8000,
DisableJITCompileOptimizer = 0x4000}
/// <summary>
/// Method call conventions
/// </summary>
[Flags]
public enum CallConv { Default, Cdecl, Stdcall, Thiscall,
Fastcall, Vararg, Instance = 0x20, Generic = 0x10, InstanceExplicit = 0x60 }
/// <summary>
/// Type custom modifier
/// </summary>
public enum CustomModifier { modreq = 0x1F, modopt };
/// <summary>
/// Attibutes for a class
/// </summary>
[Flags]
public enum TypeAttr {Private, Public, NestedPublic, NestedPrivate,
NestedFamily, NestedAssembly, NestedFamAndAssem, NestedFamOrAssem,
SequentialLayout, ExplicitLayout = 0x10, Interface = 0x20,
Abstract = 0x80, PublicAbstract = 0x81, Sealed = 0x100,
PublicSealed = 0x101, SpecialName = 0x400, RTSpecialName = 0x800,
Import = 0x1000, Serializable = 0x2000, UnicodeClass = 0x10000,
AutoClass = 0x20000, HasSecurity = 0x40000, BeforeFieldInit = 0x100000,
Forwarder = 0x200000,
VisibilityMask = 0x07 }
/// <summary>
/// Attributes for a field
/// </summary>
public enum FieldAttr {Default, Private, FamAndAssem, Assembly,
Family, FamOrAssem, Public, Static = 0x10, PublicStatic = 0x16,
Initonly = 0x20, Literal = 0x40, Notserialized = 0x80,
SpecialName = 0x200, RTSpecialName = 0x400, HasFieldMarshal = 0x1000 }
/// <summary>
/// Attributes for a method
/// </summary>
public enum MethAttr { Default, Private, FamAndAssem, Assembly,
Family, FamOrAssem, Public, Static = 0x0010, PublicStatic = 0x16,
Final = 0x0020, PublicStaticFinal = 0x36, Virtual = 0x0040,
PrivateVirtual, PublicVirtual = 0x0046, HideBySig = 0x0080,
NewSlot = 0x0100, Strict = 0x200, Abstract = 0x0400, SpecialName = 0x0800,
RTSpecialName = 0x1000, SpecialRTSpecialName = 0x1800,
HasSecurity = 0x4000, RequireSecObject = 0x8000}
/// <summary>
/// Attributes for .pinvokeimpl method declarations
/// </summary>
public enum PInvokeAttr { nomangle = 1, ansi = 2, unicode = 4, autochar = 6,
bestfit_on = 0x0010, bestfit_off = 0x0020, bestfit_mask = 0x0030,
lasterr = 0x0040, winapi = 0x0100, cdecl = 0x0200,
stdcall = 0x0300, thiscall = 0x0400, fastcall = 0x0500,
charmaperror_on = 0x1000, charmaperror_off = 0x2000
}
/// <summary>
/// Implementation attributes for a method
/// </summary>
public enum ImplAttr { IL, Native, Runtime = 0x03, Unmanaged = 0x04,
ForwardRef = 0x10, PreserveSig = 0x0080, InternalCall = 0x1000,
Synchronised = 0x0020, Synchronized = 0x0020, NoInLining = 0x0008, Optil = 0x0002}
/// <summary>
/// Modes for a parameter
/// </summary>
public enum ParamAttr { Default, In, Out, Opt = 16, HasDefault = 0x1000, HasFieldMarshal = 0x2000 }
/// <summary>
/// CIL instructions
/// </summary>
public enum Op { nop, breakOp, ldarg_0, ldarg_1, ldarg_2, ldarg_3,
ldloc_0, ldloc_1, ldloc_2, ldloc_3, stloc_0, stloc_1, stloc_2, stloc_3,
ldnull = 0x14, ldc_i4_m1, ldc_i4_0, ldc_i4_1, ldc_i4_2, ldc_i4_3,
ldc_i4_4, ldc_i4_5, ldc_i4_6, ldc_i4_7, ldc_i4_8, dup = 0x25, pop,
ret = 0x2A, ldind_i1 = 0x46, ldind_u1, ldind_i2, ldind_u2, ldind_i4,
ldind_u4, ldind_i8, ldind_i, ldind_r4, ldind_r8, ldind_ref, stind_ref,
stind_i1, stind_i2, stind_i4, stind_i8, stind_r4, stind_r8, add, sub, mul,
div, div_un, rem, rem_un, and, or, xor, shl, shr, shr_un, neg, not,
conv_i1, conv_i2, conv_i4, conv_i8, conv_r4, conv_r8, conv_u4, conv_u8,
conv_r_un = 0x76, throwOp = 0x7A, conv_ovf_i1_un = 0x82, conv_ovf_i2_un,
conv_ovf_i4_un, conv_ovf_i8_un, conf_ovf_u1_un, conv_ovf_u2_un,
conv_ovf_u4_un, conv_ovf_u8_un, conv_ovf_i_un, conv_ovf_u_un,
ldlen = 0x8E, ldelem_i1 = 0x90, ldelem_u1, ldelem_i2, ldelem_u2,
ldelem_i4, ldelem_u4, ldelem_i8, ldelem_i, ldelem_r4, ldelem_r8,
ldelem_ref, stelem_i, stelem_i1, stelem_i2, stelem_i4, stelem_i8, stelem_r4 = 0xA0, stelem_r8,
stelem_ref, conv_ovf_i1 = 0xb3, conv_ovf_u1, conv_ovf_i2, conv_ovf_u2,
conv_ovf_i4, conv_ovf_u4, conv_ovf_i8, conv_ovf_u8, ckfinite = 0xC3,
conv_u2 = 0xD1, conv_u1, conv_i, conv_ovf_i, conv_ovf_u, add_ovf,
add_ovf_un, mul_ovf, mul_ovf_un, sub_ovf, sub_ovf_un, endfinally,
stind_i = 0xDF, conv_u, arglist = 0xFE00, ceq, cgt, cgt_un, clt, clt_un,
localloc = 0xFE0F, endfilter = 0xFE11, volatile_ = 0xFE13, tail_,
cpblk = 0xFE17, initblk, rethrow = 0xFE1A, refanytype = 0xFE1D, readonly_ = 0xFE1E }
/// <summary>
/// CIL instructions requiring an integer parameter
/// </summary>
public enum IntOp {ldarg_s = 0x0E, ldarga_s, starg_s, ldloc_s, ldloca_s,
stloc_s, ldc_i4_s = 0x1F, ldc_i4, ldarg = 0xFE09,
ldarga, starg, ldloc, ldloca, stloc, unaligned = 0xFE12 }
/// <summary>
/// CIL instructions requiring a field parameter
/// </summary>
public enum FieldOp {ldfld = 0x7B, ldflda, stfld, ldsfld, ldsflda,
stsfld, ldtoken = 0xD0 }
/// <summary>
/// CIL instructions requiring a method parameter
/// </summary>
public enum MethodOp {jmp = 0x27, call, callvirt = 0x6F, newobj = 0x73,
ldtoken = 0xD0, ldftn = 0xFE06, ldvirtfn }
/// <summary>
/// CIL instructions requiring a type parameter
/// </summary>
public enum TypeOp {cpobj = 0x70, ldobj, castclass = 0x74, isinst,
unbox = 0x79, stobj = 0x81, box = 0x8C, newarr,
ldelema = 0x8F, refanyval = 0xC2, mkrefany = 0xC6,
ldtoken = 0xD0, initobj = 0xFE15, constrained = 0xFE16,
sizeOf = 0xFE1C, ldelem = 0xA3, stelem = 0xA4, unbox_any }
/// <summary>
/// CIL branch instructions
/// </summary>
public enum BranchOp {
// short branches
br_s = 0x2B, brfalse_s, brtrue_s, beq_s, bge_s, bgt_s,
ble_s, blt_s, bne_un_s, bge_un_s, bgt_un_s, ble_un_s, blt_un_s,
// long branches
br = 0x38, brfalse, brtrue, beq, bge, bgt, ble, blt,
bne_un, bge_un, bgt_un, ble_un, blt_un,
leave = 0xDD, leave_s }
/// <summary>
/// Index for all the tables in the meta data
/// </summary>
public enum MDTable { Module, TypeRef, TypeDef, Field = 0x04, Method = 0x06,
Param = 0x08, InterfaceImpl, MemberRef, Constant, CustomAttribute,
FieldMarshal, DeclSecurity, ClassLayout, FieldLayout, StandAloneSig,
EventMap, Event = 0x14, PropertyMap, Property = 0x17, MethodSemantics,
MethodImpl, ModuleRef, TypeSpec, ImplMap, FieldRVA, Assembly = 0x20,
AssemblyProcessor, AssemblyOS, AssemblyRef, AssemblyRefProcessor,
AssemblyRefOS, File, ExportedType, ManifestResource, NestedClass,
GenericParam, MethodSpec, GenericParamConstraint }
public enum SafeArrayType { int16 = 2, int32, float32, float64,
currency, date, bstr, dispatch, error, boolean, variant, unknown,
Decimal, int8 = 16, uint8, uint16, uint32, Int = 22, UInt }
internal enum CIx { TypeDefOrRef, HasConst, HasCustomAttr, HasFieldMarshal,
HasDeclSecurity, MemberRefParent, HasSemantics, MethodDefOrRef,
MemberForwarded, Implementation, CustomAttributeType, ResolutionScope,
TypeOrMethodDef, MaxCIx }
internal enum MapType { eventMap, propertyMap, nestedClass }
public enum ValueClass { ValueType, Enum }
public enum GenParamType : byte {
Var = 0x13, MVar = 0x1E
}
[Flags]
public enum GenericParamAttributes : ushort {
VarianceMask = 0x0003,
NonVariant = 0x0000,
Covariant = 0x0001,
Contravariant = 0x0002,
SpecialConstraintMask = 0x001c,
ReferenceTypeConstraint = 0x0004,
NotNullableValueTypeConstraint = 0x0008,
DefaultConstructorConstrait = 0x0010
}
/* Taken from Mono.Cecil */
public enum SecurityAction : short {
Request = 1,
Demand = 2,
Assert = 3,
Deny = 4,
PermitOnly = 5,
LinkDemand = 6,
InheritDemand = 7,
RequestMinimum = 8,
RequestOptional = 9,
RequestRefuse = 10,
PreJitGrant = 11,
PreJitDeny = 12,
NonCasDemand = 13,
NonCasLinkDemand = 14,
NonCasInheritance = 15,
LinkDemandChoice = 16,
InheritDemandChoice = 17,
DemandChoice = 18
}
#endregion
/**************************************************************************/
/// <summary>
/// Base class for all Meta Data table elements
/// </summary>
public abstract class MetaDataElement: IComparable {
protected ArrayList customAttributes;
private uint row = 0;
protected bool done = false;
protected MDTable tabIx;
protected bool sortTable = false;
//Temporary hack..
private bool has_custom_attrs = false;
internal MetaDataElement() { }
public uint Row {
get {
return row;
}
set {
row = value;
}
}
public bool HasCustomAttr {
get { return has_custom_attrs; }
set { has_custom_attrs = value; }
}
internal virtual uint GetCodedIx(CIx code) { return 0; }
/// <summary>
/// Add a custom attribute to this item
/// </summary>
/// <param name="ctorMeth">the constructor method for this attribute</param>
/// <param name="val">the byte value of the parameters</param>
public void AddCustomAttribute(Method ctorMeth, byte[] val)
{
if (customAttributes == null) {
customAttributes = new ArrayList();
}
customAttributes.Add(new CustomAttribute(this,ctorMeth,val));
}
/// <summary>
/// Add a custom attribute to this item
/// </summary>
/// <param name="ctorMeth">the constructor method for this attribute</param>
/// <param name="val">the constant values of the parameters</param>
public void AddCustomAttribute(Method ctorMeth, Constant[] cVals)
{
if (customAttributes == null) {
customAttributes = new ArrayList();
}
// customAttributes.Add(new CustomAttribute(this,ctorMeth,cVals));
}
internal uint Token()
{
return (((uint)tabIx << 24) | row);
}
internal virtual void BuildTables(MetaData md)
{
done = true;
}
internal virtual uint Size(MetaData md)
{
return 0;
}
internal virtual void Write(FileImage output) { }
internal virtual uint SortKey()
{
throw new PEFileException("Trying to sort table of " + this);
//return 0;
}
internal virtual uint SortKey2()
{
return 0;
}
public int CompareTo(object obj)
{
uint otherKey = ((MetaDataElement)obj).SortKey();
uint thisKey = SortKey();
if (thisKey == otherKey) {
otherKey = ((MetaDataElement)obj).SortKey2();
thisKey = SortKey2();
if (thisKey == otherKey)
return 0;
if (thisKey < otherKey)
return -1;
return 1;
}
if (thisKey < otherKey) return -1;
return 1;
}
}
/**************************************************************************/
/// <summary>
/// Layout information for a class (.class [sequential | explicit])
/// </summary>
internal class ClassLayout : MetaDataElement {
ClassDef parent;
ushort packSize = 0;
uint classSize = 0;
internal ClassLayout(int pack, int cSize, ClassDef par)
{
packSize = (ushort)pack;
classSize = (uint)cSize;
parent = par;
tabIx = MDTable.ClassLayout;
}
internal sealed override uint Size(MetaData md)
{
return 6 + md.TableIndexSize(MDTable.TypeDef);
}
internal sealed override void Write(FileImage output)
{
output.Write(packSize);
output.Write(classSize);
output.WriteIndex(MDTable.TypeDef,parent.Row);
}
}
/**************************************************************************/
/// <summary>
/// Summary description for ConstantElem.
/// </summary>
internal class ConstantElem : MetaDataElement {
MetaDataElement parent;
Constant cValue;
uint valIx = 0;
internal ConstantElem(MetaDataElement parent, Constant val)
{
this.parent = parent;
cValue = val;
tabIx = MDTable.Constant;
sortTable = true;
}
internal override uint SortKey()
{
return (parent.Row << MetaData.CIxShiftMap[(uint)CIx.HasConst])
| parent.GetCodedIx(CIx.HasConst);
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
valIx = cValue.GetBlobIndex(md);
done = true;
}
internal void AddToBlob(BinaryWriter bw)
{
cValue.Write(bw);
}
internal sealed override uint Size(MetaData md)
{
return 2 + md.CodedIndexSize(CIx.HasConst) + md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.Write(cValue.GetTypeIndex());
output.Write((byte)0);
output.WriteCodedIndex(CIx.HasConst,parent);
output.BlobIndex(valIx);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a Custom Attribute (.custom)
/// </summary>
public class CustomAttribute : MetaDataElement {
MetaDataElement parent;
Method type;
uint valIx;
Constant cVal;
byte[] byteVal;
ushort numNamed = 0;
ArrayList names, vals;
internal CustomAttribute(MetaDataElement paren, Method constrType,
Constant val) {
parent = paren;
type = constrType;
cVal = val;
tabIx = MDTable.CustomAttribute;
byteVal = ConstantToByteArray (val);
}
static byte[] ConstantToByteArray (Constant c)
{
var bac = c as ByteArrConst;
if (bac != null)
return bac.val;
var ms = new MemoryStream ();
// Version info
ms.WriteByte (1);
ms.WriteByte (0);
if (c == null) {
ms.WriteByte (0);
ms.WriteByte (0);
return ms.ToArray ();
}
var sc = c as StringConst;
if (sc != null) {
string value = sc.val;
if (value == null)
throw new NotImplementedException ();
var buf = Encoding.UTF8.GetBytes (value);
MetaData.CompressNum ((uint) buf.Length, ms);
var byteVal = ms.ToArray ();
System.Array.Resize (ref byteVal, (int) ms.Length + buf.Length + 2);
System.Array.Copy (buf, 0, byteVal, ms.Length, buf.Length);
return byteVal;
}
var ac = c as ArrayConstant;
if (ac != null) {
var bw = new BinaryWriter (ms);
if (ac.ExplicitSize != null)
bw.Write (ac.ExplicitSize.Value);
ac.Write (bw);
bw.Write ((short)0);
return ms.ToArray ();
}
var bc = c as DataConstant;
if (bc != null) {
var bw = new BinaryWriter (ms);
bc.Write (bw);
bw.Write ((short)0);
return ms.ToArray ();
}
throw new NotImplementedException (c.GetType ().ToString ());
}
internal CustomAttribute(MetaDataElement paren, Method constrType,
byte[] val) {
parent = paren;
type = constrType;
tabIx = MDTable.CustomAttribute;
byteVal = val;
}
internal override uint SortKey()
{
return (parent.Row << MetaData.CIxShiftMap[(uint)CIx.HasCustomAttr])
| parent.GetCodedIx(CIx.HasCustomAttr);
}
public void AddFieldOrProp(string name, Constant val)
{
if (numNamed == 0) {
names = new ArrayList();
vals = new ArrayList();
}
names.Add(name);
vals.Add(val);
}
internal sealed override void BuildTables(MetaData md)
{
md.AddToTable(MDTable.CustomAttribute, this);
if (byteVal == null) {
valIx = 0;
return;
}
BinaryWriter bw = new BinaryWriter(new MemoryStream());
bw.Write(byteVal);
MemoryStream str = (MemoryStream)bw.BaseStream;
valIx = md.AddToBlobHeap(str.ToArray());
}
internal sealed override uint Size(MetaData md)
{
return md.CodedIndexSize(CIx.HasCustomAttr) + md.CodedIndexSize(CIx.CustomAttributeType) + md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.WriteCodedIndex(CIx.HasCustomAttr,parent);
output.WriteCodedIndex(CIx.CustomAttributeType,type);
output.BlobIndex(valIx);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for security permissions for a class or a method
/// </summary>
public abstract class BaseDeclSecurity : MetaDataElement {
ushort action;
MetaDataElement parent;
uint permissionIx;
internal BaseDeclSecurity(MetaDataElement paren, ushort act)
{
parent = paren;
action = act;
tabIx = MDTable.DeclSecurity;
}
internal override uint SortKey()
{
return (parent.Row << MetaData.CIxShiftMap[(uint)CIx.HasDeclSecurity])
| parent.GetCodedIx(CIx.HasDeclSecurity);
}
internal sealed override uint Size(MetaData md)
{
return 2 + md.CodedIndexSize(CIx.HasDeclSecurity) + md.BlobIndexSize();
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
BinaryWriter bw = new BinaryWriter (new MemoryStream ());
md.AddToTable (MDTable.DeclSecurity, this);
MemoryStream str = (MemoryStream)bw.BaseStream;
WriteSig (bw);
permissionIx = md.AddToBlobHeap(str.ToArray());
done = true;
}
internal abstract void WriteSig (BinaryWriter bw);
internal sealed override void Write(FileImage output)
{
output.Write(action);
output.WriteCodedIndex(CIx.HasDeclSecurity,parent);
output.BlobIndex(permissionIx);
}
}
public class DeclSecurity : BaseDeclSecurity {
byte [] byteVal;
internal DeclSecurity(MetaDataElement paren, ushort act, byte [] val)
: base (paren, act)
{
byteVal = val;
}
internal override void WriteSig (BinaryWriter bw)
{
bw.Write (byteVal);
}
}
public class DeclSecurity_20 : BaseDeclSecurity {
PermissionSet ps;
internal DeclSecurity_20 (MetaDataElement paren, ushort act, PermissionSet ps)
: base (paren, act)
{
this.ps = ps;
}
internal override void WriteSig (BinaryWriter bw)
{
ps.Write (bw);
}
}
public class PermissionMember {
MemberTypes member_type;
PEAPI.Type type;
string name;
object value;
public PermissionMember (MemberTypes member_type, PEAPI.Type type, string name, object value)
{
this.member_type = member_type;
this.type = type;
this.name = name;
this.value = value;
}
public void Write (BinaryWriter bw)
{
byte [] b;
if (member_type == MemberTypes.Field)
bw.Write ((byte) 0x53);
else
//Property
bw.Write ((byte) 0x54);
if (type is PrimitiveType) {
bw.Write (type.GetTypeIndex ());
} else {
//must be enum
bw.Write ((byte) 0x55); //ENUM
b = Encoding.UTF8.GetBytes (((ClassRef) type).TypeName ());
MetaData.CompressNum ((uint) b.Length, (MemoryStream) bw.BaseStream);
bw.Write (b);
}
b = Encoding.UTF8.GetBytes (name);
MetaData.CompressNum ((uint) b.Length, (MemoryStream) bw.BaseStream);
bw.Write (b);
((Constant) value).Write (bw);
}
}
public class Permission
{
PEAPI.Type type;
//PermissionMembers
ArrayList members;
string name;
public Permission (PEAPI.Type type, string name)
{
this.type = type;
this.name = name;
}
public void AddMember (PEAPI.PermissionMember member)
{
if (members == null)
members = new ArrayList ();
members.Add (member);
}
public void Write (BinaryWriter bw)
{
byte [] b = Encoding.UTF8.GetBytes (name);
MetaData.CompressNum ((uint) b.Length, (MemoryStream) bw.BaseStream);
bw.Write (b);
BinaryWriter perm_writer = new BinaryWriter (new MemoryStream (), Encoding.Unicode);
MemoryStream str = (MemoryStream) perm_writer.BaseStream;
MetaData.CompressNum ((uint) members.Count, str);//number of params
foreach (PermissionMember member in members)
member.Write (perm_writer);
bw.Write ((byte) str.Length); //(optional) parameters length
bw.Write (str.ToArray ());
}
}
public class PermissionSet
{
PEAPI.SecurityAction sec_action;
ArrayList permissions;
public PermissionSet (PEAPI.SecurityAction sec_action)
{
this.sec_action = sec_action;
}
public void AddPermission (PEAPI.Permission perm)
{
if (permissions == null)
permissions = new ArrayList ();
permissions.Add (perm);
}
public void Write (BinaryWriter bw)
{
bw.Write ((byte) 0x2e);
MetaData.CompressNum ((uint) permissions.Count, (MemoryStream) bw.BaseStream);
foreach (Permission perm in permissions)
perm.Write (bw);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for layout information for a field
/// </summary>
public class FieldLayout : MetaDataElement {
Field field;
uint offset;
internal FieldLayout(Field field, uint offset)
{
this.field = field;
this.offset = offset;
tabIx = MDTable.FieldLayout;
}
internal sealed override uint Size(MetaData md)
{
return 4 + md.TableIndexSize(MDTable.Field);
}
internal sealed override void Write(FileImage output)
{
output.Write(offset);
output.WriteIndex(MDTable.Field,field.Row);
}
}
/*****************************************************************************/
/// <summary>
/// Marshalling information for a field or param
/// </summary>
public class FieldMarshal : MetaDataElement {
MetaDataElement field;
NativeType nt;
uint ntIx;
internal FieldMarshal(MetaDataElement field, NativeType nType)
{
this.field = field;
this.nt = nType;
tabIx = MDTable.FieldMarshal;
}
internal override uint SortKey()
{
return (field.Row << MetaData.CIxShiftMap[(uint)CIx.HasFieldMarshal])
| field.GetCodedIx(CIx.HasFieldMarshal);
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
ntIx = md.AddToBlobHeap(nt.ToBlob());
done = true;
}
internal sealed override uint Size(MetaData md)
{
return md.CodedIndexSize(CIx.HasFieldMarshal) + md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.WriteCodedIndex(CIx.HasFieldMarshal,field);
output.BlobIndex(ntIx);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for the address of a field's value in the PE file
/// </summary>
public class FieldRVA : MetaDataElement {
Field field;
DataConstant data;
internal FieldRVA(Field field, DataConstant data)
{
this.field = field;
this.data = data;
tabIx = MDTable.FieldRVA;
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
md.AddData(data);
done = true;
}
internal sealed override uint Size(MetaData md)
{
return 4 + md.TableIndexSize(MDTable.Field);
}
internal sealed override void Write(FileImage output)
{
output.WriteDataRVA(data.DataOffset);
output.WriteIndex(MDTable.Field,field.Row);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a file referenced in THIS assembly/module (.file)
/// </summary>
public class FileRef : MetaDataElement {
private static readonly uint NoMetaData = 0x1;
uint nameIx = 0, hashIx = 0;
uint flags = 0;
protected string name;
internal FileRef(string name, byte[] hashBytes, bool metaData,
bool entryPoint, MetaData md) {
if (!metaData) flags = NoMetaData;
if (entryPoint) md.SetEntryPoint(this);
this.name = name;
nameIx = md.AddToStringsHeap(name);
hashIx = md.AddToBlobHeap(hashBytes);
tabIx = MDTable.File;
}
internal FileRef(uint nameIx, byte[] hashBytes, bool metaData,
bool entryPoint, MetaData md) {
if (!metaData) flags = NoMetaData;
if (entryPoint) md.SetEntryPoint(this);
this.nameIx = nameIx;
hashIx = md.AddToBlobHeap(hashBytes);
tabIx = MDTable.File;
}
internal sealed override uint Size(MetaData md)
{
return 4 + md.StringsIndexSize() + md.BlobIndexSize();
}
internal sealed override void BuildTables(MetaData md)
{
md.AddToTable(MDTable.File,this);
}
internal sealed override void Write(FileImage output)
{
output.Write(flags);
output.StringsIndex(nameIx);
output.BlobIndex(hashIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 16;
case (CIx.Implementation) : return 0;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for pinvoke information for a method NOT YET IMPLEMENTED
/// </summary>
public class ImplMap : MetaDataElement {
private static readonly ushort NoMangle = 0x01;
ushort flags;
Method meth;
string importName;
uint iNameIx;
ModuleRef importScope;
internal ImplMap(ushort flag, Method implMeth, string iName, ModuleRef mScope)
{
flags = flag;
meth = implMeth;
importName = iName;
importScope = mScope;
tabIx = MDTable.ImplMap;
if (iName == null) flags |= NoMangle;
//throw(new NotYetImplementedException("PInvoke "));
}
internal override uint SortKey()
{
return (meth.Row << MetaData.CIxShiftMap[(uint)CIx.MemberForwarded])
| meth.GetCodedIx(CIx.MemberForwarded);
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
iNameIx = md.AddToStringsHeap(importName);
done = true;
}
internal sealed override uint Size(MetaData md)
{
return 2+ md.CodedIndexSize(CIx.MemberForwarded) +
md.StringsIndexSize() + md.TableIndexSize(MDTable.ModuleRef);
}
internal sealed override void Write(FileImage output)
{
output.Write(flags);
output.WriteCodedIndex(CIx.MemberForwarded,meth);
output.StringsIndex(iNameIx);
output.WriteIndex(MDTable.ModuleRef,importScope.Row);
}
}
/**************************************************************************/
public class GenericParameter : MetaDataElement {
MetaDataElement owner;
MetaData metadata;
public string name;
uint nameIx;
short index;
GenericParamAttributes attr;
internal GenericParameter (ClassDef owner, MetaData metadata,
short index, string name, GenericParamAttributes attr) : this (owner, metadata, index, name, attr, true)
{
}
internal GenericParameter (MethodDef owner, MetaData metadata,
short index, string name, GenericParamAttributes attr) : this (owner, metadata, index, name, attr, true)
{
}
private GenericParameter (MetaDataElement owner, MetaData metadata,
short index, string name, GenericParamAttributes attr, bool nadda) {
this.owner = owner;
this.metadata = metadata;
this.index = index;
tabIx = MDTable.GenericParam;
this.name = name;
this.attr = attr;
}
internal override uint SortKey()
{
return (owner.Row << MetaData.CIxShiftMap[(uint)CIx.TypeOrMethodDef])
| owner.GetCodedIx(CIx.TypeOrMethodDef);
}
internal override uint SortKey2 ()
{
return (uint) index;
}
public void AddConstraint (Type constraint)
{
metadata.AddToTable (MDTable.GenericParamConstraint,
new GenericParamConstraint (this, constraint));
}
internal sealed override uint Size(MetaData md)
{
return (uint) (4 +
md.CodedIndexSize(CIx.TypeOrMethodDef) +
md.StringsIndexSize ());
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
nameIx = md.AddToStringsHeap(name);
done = true;
}
internal sealed override void Write(FileImage output)
{
output.Write ((short) index);
output.Write ((short) attr);
output.WriteCodedIndex(CIx.TypeOrMethodDef, owner);
output.StringsIndex (nameIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 19;
}
return 0;
}
}
internal class GenericParamConstraint : MetaDataElement {
GenericParameter param;
Type type;
public GenericParamConstraint (GenericParameter param, Type type)
{
this.param = param;
this.type = type;
tabIx = MDTable.GenericParamConstraint;
}
internal override uint SortKey()
{
return param.Row;
}
internal sealed override uint Size(MetaData md)
{
return (uint) (md.TableIndexSize(MDTable.GenericParam) +
md.CodedIndexSize(CIx.TypeDefOrRef));
}
internal sealed override void Write(FileImage output)
{
output.WriteIndex(MDTable.GenericParam, param.Row);
output.WriteCodedIndex(CIx.TypeDefOrRef, type);
}
}
internal class MethodSpec : Method {
Method meth;
GenericMethodSig g_sig;
uint sidx;
internal MethodSpec (Method meth, GenericMethodSig g_sig) : base ("")
{
this.meth = meth;
this.g_sig = g_sig;
tabIx = MDTable.MethodSpec;
}
internal override uint GetSigIx (MetaData md)
{
throw new Exception ("Should not be used.");
}
public override void AddCallConv (CallConv cconv)
{
throw new Exception ("Should not be used.");
}
internal sealed override void BuildTables (MetaData md)
{
if (done) return;
sidx = g_sig.GetSigIx (md);
done = true;
}
internal sealed override uint Size (MetaData md)
{
return (uint) (md.CodedIndexSize(CIx.MethodDefOrRef) +
md.BlobIndexSize ());
}
internal sealed override void Write (FileImage output)
{
output.WriteCodedIndex (CIx.MethodDefOrRef, meth);
output.BlobIndex (sidx);
}
internal sealed override void TypeSig (MemoryStream sig)
{
throw new Exception ("Should not be used.");
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for interface implemented by a class
/// </summary>
public class InterfaceImpl: MetaDataElement {
ClassDef theClass;
Class theInterface;
internal InterfaceImpl(ClassDef theClass, Class theInterface)
{
this.theClass = theClass;
this.theInterface = theInterface;
tabIx = MDTable.InterfaceImpl;
}
internal sealed override uint Size(MetaData md)
{
return md.TableIndexSize(MDTable.TypeDef) +
md.CodedIndexSize(CIx.TypeDefOrRef);
}
internal sealed override void Write(FileImage output)
{
output.WriteIndex(MDTable.TypeDef,theClass.Row);
output.WriteCodedIndex(CIx.TypeDefOrRef,theInterface);
}
internal sealed override uint GetCodedIx(CIx code) { return 5; }
internal override uint SortKey ()
{
return (theClass.Row << MetaData.CIxShiftMap[(uint)CIx.TypeDefOrRef])
| theClass.GetCodedIx (CIx.TypeDefOrRef);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for resources used in this PE file
/// </summary>
public class ManifestResource : MetaDataElement {
public static readonly uint PublicResource = 0x1;
public static readonly uint PrivateResource = 0x2;
string mrName;
MetaDataElement rRef;
uint fileOffset;
uint nameIx = 0;
uint flags = 0;
byte [] resourceBytes;
public ManifestResource (string name, byte[] resBytes, uint flags)
{
InitResource (name, flags);
this.resourceBytes = resBytes;
}
public ManifestResource(string name, uint flags, FileRef fileRef)
{
InitResource (name, flags);
rRef = fileRef;
}
public ManifestResource(string name, uint flags, FileRef fileRef,
uint fileIx) {
InitResource (name, flags);
rRef = fileRef;
fileOffset = fileIx;
}
public ManifestResource(string name, uint flags, AssemblyRef assemRef)
{
InitResource (name, flags);
rRef = assemRef;
}
internal ManifestResource (ManifestResource mres)
{
mrName = mres.mrName;
flags = mres.flags;
rRef = mres.rRef;
fileOffset = mres.fileOffset;
resourceBytes = mres.resourceBytes;
}
private void InitResource (string name, uint flags)
{
mrName = name;
this.flags = flags;
tabIx = MDTable.ManifestResource;
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
md.AddToTable (MDTable.ManifestResource, this);
nameIx = md.AddToStringsHeap(mrName);
if (resourceBytes != null) {
if (rRef != null)
throw new PEFileException ("Manifest Resource has byte value and file reference");
fileOffset = md.AddResource(resourceBytes);
} else {
if (rRef == null)
throw new PEFileException ("Manifest Resource has no implementation or value");
rRef.BuildTables (md);
}
done = true;
}
internal sealed override uint Size(MetaData md)
{
return 8 + md.StringsIndexSize() +
md.CodedIndexSize(CIx.Implementation);
}
internal sealed override void Write(FileImage output)
{
output.Write(fileOffset);
output.Write(flags);
output.StringsIndex(nameIx);
output.WriteCodedIndex(CIx.Implementation,rRef);
}
internal sealed override uint GetCodedIx(CIx code) { return 18; }
public string Name {
get { return mrName; }
set { mrName = value; }
}
}
/**************************************************************************/
/// <summary>
/// Base class for elements in the PropertyMap, EventMap and
/// NestedClass MetaData tables
/// </summary>
public class MapElem : MetaDataElement {
ClassDef parent;
uint elemIx;
MDTable elemTable;
internal MapElem(ClassDef par, uint elIx, MDTable elemTab)
{
parent = par;
elemIx = elIx;
elemTable = elemTab;
}
internal sealed override uint Size(MetaData md)
{
return md.TableIndexSize(MDTable.TypeDef) + md.TableIndexSize(elemTable);
}
internal sealed override void Write(FileImage output)
{
output.WriteIndex(MDTable.TypeDef,parent.Row);
output.WriteIndex(elemTable,elemIx);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for an overriding method (.override)
/// </summary>
public class MethodImpl : MetaDataElement {
ClassDef parent;
Method header, body;
internal MethodImpl(ClassDef par, Method decl, Method bod)
{
parent = par;
header = decl;
body = bod;
tabIx = MDTable.MethodImpl;
}
internal sealed override uint Size(MetaData md)
{
return md.TableIndexSize(MDTable.TypeDef) + 2 * md.CodedIndexSize(CIx.MethodDefOrRef);
}
internal sealed override void Write(FileImage output)
{
output.WriteIndex(MDTable.TypeDef,parent.Row);
output.WriteCodedIndex(CIx.MethodDefOrRef,body);
output.WriteCodedIndex(CIx.MethodDefOrRef,header);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for Property and Event methods
/// </summary>
public class MethodSemantics : MetaDataElement {
Feature.MethodType type;
MethodDef meth;
Feature eventOrProp;
internal MethodSemantics(Feature.MethodType mType, MethodDef method, Feature feature)
{
type = mType;
meth = method;
eventOrProp = feature;
tabIx = MDTable.MethodSemantics;
}
internal override uint SortKey()
{
return (eventOrProp.Row << MetaData.CIxShiftMap [(uint)CIx.HasSemantics])
| eventOrProp.GetCodedIx (CIx.HasSemantics);
}
internal sealed override uint Size(MetaData md)
{
return 2 + md.TableIndexSize(MDTable.Method) + md.CodedIndexSize(CIx.HasSemantics);
}
internal sealed override void Write(FileImage output)
{
output.Write((ushort)type);
output.WriteIndex(MDTable.Method,meth.Row);
output.WriteCodedIndex(CIx.HasSemantics,eventOrProp);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a parameter of a method defined in this assembly/module
/// </summary>
public class Param : MetaDataElement {
Type pType;
string pName;
internal ushort seqNo = 0;
ushort parMode;
ConstantElem defaultVal;
uint nameIx = 0;
FieldMarshal marshalInfo;
/// <summary>
/// Create a new parameter for a method
/// </summary>
/// <param name="mode">param mode (in, out, opt)</param>
/// <param name="parName">parameter name</param>
/// <param name="parType">parameter type</param>
public Param(ParamAttr mode, string parName, Type parType)
{
pName = parName;
pType = parType;
parMode = (ushort)mode;
tabIx = MDTable.Param;
}
public bool HasMarshalInfo {
get { return marshalInfo != null; }
}
/// <summary>
/// Add a default value to this parameter
/// </summary>
/// <param name="c">the default value for the parameter</param>
public void AddDefaultValue(Constant cVal)
{
defaultVal = new ConstantElem(this,cVal);
parMode |= (ushort) ParamAttr.HasDefault;
}
/// <summary>
/// Add marshalling information about this parameter
/// </summary>
public void AddMarshallInfo(NativeType marshallType)
{
parMode |= (ushort) ParamAttr.HasFieldMarshal;
marshalInfo = new FieldMarshal(this,marshallType);
}
internal Type GetParType() { return pType; }
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
nameIx = md.AddToStringsHeap(pName);
if (defaultVal != null) {
md.AddToTable(MDTable.Constant,defaultVal);
defaultVal.BuildTables(md);
}
if (marshalInfo != null) {
md.AddToTable(MDTable.FieldMarshal,marshalInfo);
marshalInfo.BuildTables(md);
}
done = true;
}
internal void TypeSig(MemoryStream str)
{
pType.TypeSig(str);
}
internal sealed override uint Size(MetaData md)
{
return 4 + md.StringsIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.Write(parMode);
output.Write(seqNo);
output.StringsIndex(nameIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 4;
case (CIx.HasConst) : return 1;
case (CIx.HasFieldMarshal) : return 1;
}
return 0;
}
}
/**************************************************************************/
public abstract class Signature : MetaDataElement {
protected uint sigIx;
internal Signature()
{
tabIx = MDTable.StandAloneSig;
}
internal sealed override uint Size(MetaData md)
{
return md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.BlobIndex(sigIx);
}
internal sealed override uint GetCodedIx(CIx code) { return (uint)tabIx; }
}
/**************************************************************************/
public class TypeSpec : MetaDataElement {
uint sigIx = 0;
internal TypeSpec(Type aType, MetaData md)
{
MemoryStream sig = new MemoryStream();
aType.TypeSig(sig);
sigIx = md.AddToBlobHeap(sig.ToArray());
tabIx = MDTable.TypeSpec;
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.TypeDefOrRef) : return 2;
case (CIx.HasCustomAttr) : return 13;
case (CIx.MemberRefParent) : return 4;
}
return 0;
}
internal override uint Size(MetaData md)
{
return md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
//Console.WriteLine("Writing the blob index for a TypeSpec");
output.BlobIndex(sigIx);
}
}
/**************************************************************************/
/// <summary>
/// Base class for all IL types
/// </summary>
public abstract class Type : MetaDataElement {
protected byte typeIndex;
protected TypeSpec typeSpec;
internal Type(byte tyIx) { typeIndex = tyIx; }
internal byte GetTypeIndex() { return typeIndex; }
internal void SetTypeIndex (byte b) { typeIndex = b; }
internal virtual MetaDataElement GetTypeSpec(MetaData md)
{
if (typeSpec == null) {
typeSpec = new TypeSpec(this,md);
md.AddToTable(MDTable.TypeSpec,typeSpec);
}
return typeSpec;
}
internal virtual void TypeSig(MemoryStream str)
{
throw(new TypeSignatureException(this.GetType().AssemblyQualifiedName +
" doesn't have a type signature!!"));
}
}
public class ClassRefInst : Type {
private Type type;
private bool is_value;
public ClassRefInst (Type type, bool is_value) : base (PrimitiveType.Class.GetTypeIndex ())
{
this.type = type;
this.is_value = is_value;
if (is_value)
typeIndex = PrimitiveType.ValueType.GetTypeIndex ();
tabIx = MDTable.TypeSpec;
}
internal sealed override void TypeSig(MemoryStream str)
{
type.TypeSig (str);
}
}
/**************************************************************************/
/// <summary>
/// The base descriptor for a class
/// </summary>
public abstract class Class : Type {
protected int row = 0;
public string name, nameSpace;
protected uint nameIx, nameSpaceIx;
protected MetaData _metaData;
internal Class(string nameSpaceName, string className, MetaData md)
: base(PrimitiveType.Class.GetTypeIndex ())
{
nameSpace = nameSpaceName;
name = className;
nameIx = md.AddToStringsHeap(name);
nameSpaceIx = md.AddToStringsHeap(nameSpace);
_metaData = md;
}
internal Class(uint nsIx, uint nIx) : base(PrimitiveType.Class.GetTypeIndex ())
{
nameSpaceIx = nsIx;
nameIx = nIx;
}
internal Class (byte typeIndex) : base (typeIndex)
{
nameSpace = "Should not be used";
name = "Should not be used";
}
internal virtual uint TypeDefOrRefToken() { return 0; }
internal virtual void MakeValueClass(ValueClass vClass)
{
typeIndex = PrimitiveType.ValueType.GetTypeIndex ();
}
internal virtual string TypeName()
{
return (nameSpace + "." + name);
}
internal override MetaDataElement GetTypeSpec(MetaData md)
{
return this;
}
}
/**************************************************************************/
// This Class produces entries in the TypeDef table of the MetaData
// in the PE meta data.
// NOTE: Entry 0 in TypeDef table is always the pseudo class <module>
// which is the parent for functions and variables declared a module level
/// <summary>
/// The descriptor for a class defined in the IL (.class) in the current assembly/module
/// </summary>
///
public class ClassDef : Class {
Class superType;
ArrayList fields = new ArrayList();
ArrayList methods = new ArrayList();
ArrayList events;
ArrayList properties;
bool typeIndexChecked = true;
uint fieldIx = 0, methodIx = 0;
uint flags;
ClassLayout layout;
ClassDef parentClass;
MetaData metaData;
internal ClassDef(TypeAttr attrSet, string nsName, string name,
MetaData md) : base(nsName, name, md)
{
metaData = md;
if (! ((nsName == "" && name == "<Module>") || (nsName == "System" && name == "Object")) ) {
superType = metaData.mscorlib.GetSpecialSystemClass(PrimitiveType.Object);
}
flags = (uint)attrSet;
tabIx = MDTable.TypeDef;
}
internal void SetSuper(Class sClass)
{
superType = sClass;
if (! (sClass is GenericTypeInst))
typeIndexChecked = false;
}
internal override void MakeValueClass(ValueClass vClass)
{
if (vClass == ValueClass.Enum)
superType = metaData.mscorlib.EnumType();
else
superType = metaData.mscorlib.ValueType();
typeIndex = PrimitiveType.ValueType.GetTypeIndex ();
}
public void SpecialNoSuper()
{
superType = null;
}
/// <summary>
/// Add an attribute to this class
/// </summary>
/// <param name="ta">the attribute to be added</param>
public void AddAttribute(TypeAttr ta)
{
flags |= (uint)ta;
}
/// <summary>
/// Add an interface that is implemented by this class
/// </summary>
/// <param name="iFace">the interface that is implemented</param>
public void AddImplementedInterface(Class iFace)
{
metaData.AddToTable(MDTable.InterfaceImpl,new InterfaceImpl(this,iFace));
}
/// <summary>
/// Add a named generic type parameter
/// </summary>
public GenericParameter AddGenericParameter (short index, string name)
{
return AddGenericParameter (index, name, 0);
}
/// <summary>
/// Add a named generic type parameter with attributes
/// </summary>
public GenericParameter AddGenericParameter (short index, string name, GenericParamAttributes attr)
{
GenericParameter gp = new GenericParameter (this, metaData, index, name, attr);
metaData.AddToTable (MDTable.GenericParam, gp);
return gp;
}
/// <summary>
/// Add a field to this class
/// </summary>
/// <param name="name">field name</param>
/// <param name="fType">field type</param>
/// <returns>a descriptor for this new field</returns>
public FieldDef AddField(string name, Type fType)
{
FieldDef field = new FieldDef(name,fType);
fields.Add(field);
return field;
}
/// <summary>
/// Add a field to this class
/// </summary>
/// <param name="fAtts">attributes for this field</param>
/// <param name="name">field name</param>
/// <param name="fType">field type</param>
/// <returns>a descriptor for this new field</returns>
public FieldDef AddField(FieldAttr fAtts, string name, Type fType)
{
FieldDef field = new FieldDef(fAtts,name,fType);
fields.Add(field);
return field;
}
public void SetFieldOrder (ArrayList fields)
{
this.fields = fields;
}
/// <summary>
/// Add a method to this class
/// </summary>
/// <param name="name">method name</param>
/// <param name="retType">return type</param>
/// <param name="pars">parameters</param>
/// <returns>a descriptor for this new method</returns>
public MethodDef AddMethod(string name, Type retType, Param[] pars)
{
return AddMethod (name, new Param (ParamAttr.Default, "", retType), pars);
}
public MethodDef AddMethod (string name, Param ret_param, Param [] pars)
{
// Console.WriteLine("Adding method " + name + " to class " + this.name);
MethodDef meth = new MethodDef(metaData,name, ret_param, pars);
methods.Add(meth);
return meth;
}
/// <summary>
/// Add a method to this class
/// </summary>
/// <param name="mAtts">attributes for this method</param>
/// <param name="iAtts">implementation attributes for this method</param>
/// <param name="name">method name</param>
/// <param name="retType">return type</param>
/// <param name="pars">parameters</param>
/// <returns>a descriptor for this new method</returns>
public MethodDef AddMethod(MethAttr mAtts, ImplAttr iAtts, string name,
Param ret_param, Param [] pars) {
// Console.WriteLine("Adding method " + name + " to class " + this.name);
MethodDef meth = new MethodDef (metaData, mAtts, iAtts, name, ret_param, pars);
methods.Add(meth);
return meth;
}
/// <summary>
/// Add an event to this class
/// </summary>
/// <param name="name">event name</param>
/// <param name="eType">event type</param>
/// <returns>a descriptor for this new event</returns>
public Event AddEvent(string name, Type eType)
{
Event e = new Event(name,eType,this);
if (events == null) events = new ArrayList();
events.Add(e);
return e;
}
/// <summary>
/// Add a property to this class
/// </summary>
/// <param name="name">property name</param>
/// <param name="propType">property type</param>
/// <returns>a descriptor for this new property</returns>
public Property AddProperty(string name, Type retType, Type[] pars)
{
Property p = new Property(name, retType, pars, this);
if (properties == null) properties = new ArrayList();
properties.Add(p);
return p;
}
/// <summary>
/// Add a nested class to this class
/// </summary>
/// <param name="attrSet">attributes for this nested class</param>
/// <param name="nsName">nested name space name</param>
/// <param name="name">nested class name</param>
/// <returns>a descriptor for this new nested class</returns>
public ClassDef AddNestedClass(TypeAttr attrSet, string nsName,
string name) {
ClassDef nClass = new ClassDef(attrSet,"",name,metaData);
metaData.AddToTable(MDTable.TypeDef,nClass);
metaData.AddToTable(MDTable.NestedClass,new MapElem(nClass,Row,MDTable.TypeDef));
nClass.parentClass = this;
return (nClass);
}
public static bool IsValueType (Class type)
{
return IsValueType (type.nameSpace, type.name);
}
public static bool IsEnum (Class type)
{
return IsEnum (type.nameSpace, type.name);
}
public static bool IsValueType (string nsName, string name)
{
return (nsName == "System" && name == "ValueType");
}
public static bool IsEnum (string nsName, string name)
{
return (nsName == "System" && name == "Enum");
}
/// <summary>
/// Add a nested class to this class
/// </summary>
/// <param name="attrSet">attributes for this nested class</param>
/// <param name="nsName">nested name space name</param>
/// <param name="name">nested class name</param>
/// <param name="sType">super type of this nested class</param>
/// <returns>a descriptor for this new nested class</returns>
public ClassDef AddNestedClass(TypeAttr attrSet, string nsName,
string name, Class sType) {
ClassDef nClass = AddNestedClass (attrSet, nsName, name);
nClass.SetSuper(sType);
if (ClassDef.IsValueType (sType))
nClass.MakeValueClass (ValueClass.ValueType);
else
if (ClassDef.IsEnum (sType))
nClass.MakeValueClass (ValueClass.Enum);
if (ClassDef.IsValueType (sType) || ClassDef.IsEnum (sType))
nClass.SetTypeIndex (PrimitiveType.ValueType.GetTypeIndex ());
nClass.typeIndexChecked = true;
return (nClass);
}
/// <summary>
/// Add layout information for this class. This class must have the
/// sequential or explicit attribute.
/// </summary>
/// <param name="packSize">packing size (.pack)</param>
/// <param name="classSize">class size (.size)</param>
public void AddLayoutInfo (int packSize, int classSize)
{
layout = new ClassLayout(packSize,classSize,this);
}
/// <summary>
/// Use a method as the implementation for another method (.override)
/// </summary>
/// <param name="decl">the method to be overridden</param>
/// <param name="body">the implementation to be used</param>
public void AddMethodOverride(Method decl, Method body)
{
metaData.AddToTable(MDTable.MethodImpl,new MethodImpl(this,decl,body));
}
/// <summary>
/// Add security to this class NOT YET IMPLEMENTED
/// </summary>
/// <param name="permissionSet"></param>
public void AddSecurity(byte[] permissionSet)
{
throw(new NotYetImplementedException("Class security "));
//flags |= HasSecurity;
// securityActions = permissionSet;
}
//public void AddLineInfo(int row, int col) { }
internal void CheckTypeIndex()
{
if (typeIndexChecked) return;
if (superType is ClassDef)
((ClassDef)superType).CheckTypeIndex();
typeIndex = superType.GetTypeIndex();
typeIndexChecked = true;
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
if ((flags & (uint)TypeAttr.Interface) != 0) { superType = null; }
// Console.WriteLine("Building tables for " + name);
if (layout != null) md.AddToTable(MDTable.ClassLayout,layout);
// Console.WriteLine("adding methods " + methods.Count);
methodIx = md.TableIndex(MDTable.Method);
for (int i=0; i < methods.Count; i++) {
md.AddToTable(MDTable.Method,(MetaDataElement)methods[i]);
((MethodDef)methods[i]).BuildTables(md);
}
// Console.WriteLine("adding fields");
fieldIx = md.TableIndex(MDTable.Field);
for (int i=0; i < fields.Count; i++) {
md.AddToTable(MDTable.Field,(MetaDataElement)fields[i]);
((FieldDef)fields[i]).BuildTables(md);
}
// Console.WriteLine("adding events and properties");
if (events != null) {
for (int i=0; i < events.Count; i++) {
md.AddToTable(MDTable.Event,(Event)events[i]);
((Event)events[i]).BuildTables(md);
}
md.AddToTable(MDTable.EventMap,
new MapElem(this,((Event)events[0]).Row,MDTable.Event));
}
if (properties != null) {
for (int i=0; i < properties.Count; i++) {
md.AddToTable(MDTable.Property,(Property)properties[i]);
((Property)properties[i]).BuildTables(md);
}
md.AddToTable(MDTable.PropertyMap,new MapElem(this,
((Property)properties[0]).Row,MDTable.Property));
}
// Console.WriteLine("End of building tables");
done = true;
}
internal sealed override uint Size(MetaData md)
{
return 4 + 2 * md.StringsIndexSize() +
md.CodedIndexSize(CIx.TypeDefOrRef) +
md.TableIndexSize(MDTable.Field) +
md.TableIndexSize(MDTable.Method);
}
internal sealed override void Write(FileImage output)
{
output.Write(flags);
output.StringsIndex(nameIx);
output.StringsIndex(nameSpaceIx);
//if (superType != null)
// Console.WriteLine("getting coded index for superType of " + name + " = " + superType.GetCodedIx(CIx.TypeDefOrRef));
output.WriteCodedIndex(CIx.TypeDefOrRef,superType);
output.WriteIndex(MDTable.Field,fieldIx);
output.WriteIndex(MDTable.Method,methodIx);
}
internal sealed override uint TypeDefOrRefToken()
{
uint cIx = Row;
cIx = cIx << 2;
return cIx;
}
internal sealed override void TypeSig(MemoryStream sig)
{
if (!typeIndexChecked) CheckTypeIndex();
sig.WriteByte(GetTypeIndex());
MetaData.CompressNum(TypeDefOrRefToken(),sig);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.TypeDefOrRef) : return 0;
case (CIx.HasCustomAttr) : return 3;
case (CIx.HasDeclSecurity) : return 0;
case (CIx.TypeOrMethodDef) : return 0;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a class/interface declared in another module of THIS
/// assembly, or in another assembly.
/// </summary>
public class ClassRef : Class, IExternRef, IResolutionScope {
protected IResolutionScope parent;
protected MetaData metaData;
internal ClassRef(string nsName, string name, MetaData md) : base(nsName, name, md)
{
metaData = md;
tabIx = MDTable.TypeRef;
}
/// <summary>
/// Add a method to this class
/// </summary>
/// <param name="name">method name</param>
/// <param name="retType">return type</param>
/// <param name="pars">parameter types</param>
/// <returns>a descriptor for this method</returns>
public MethodRef AddMethod(string name, Type retType, Type[] pars)
{
return AddMethod (name, retType, pars, 0);
}
/// <summary>
/// Add a method to this class
/// </summary>
/// <param name="name">method name</param>
/// <param name="retType">return type</param>
/// <param name="pars">parameter types</param>
/// <param name="gen_param_count">num of generic parameters</param>
/// <returns>a descriptor for this method</returns>
public MethodRef AddMethod (string name, Type retType, Type[] pars, int gen_param_count)
{
MethodRef meth = new MethodRef (this, name, retType, pars, false, null, gen_param_count);
metaData.AddToTable(MDTable.MemberRef,meth);
return meth;
}
/// <summary>
/// Add a method to this class
/// </summary>
/// <param name="name">method name</param>
/// <param name="retType">return type</param>
/// <param name="pars">parameter types</param>
/// <returns>a descriptor for this method</returns>
public MethodRef AddVarArgMethod(string name, Type retType,
Type[] pars, Type[] optPars)
{
MethodRef meth = new MethodRef(this,name,retType,pars,true,optPars, 0);
metaData.AddToTable(MDTable.MemberRef,meth);
return meth;
}
/// <summary>
/// Add a field to this class
/// </summary>
/// <param name="name">field name</param>
/// <param name="fType">field type</param>
/// <returns>a descriptor for this field</returns>
public FieldRef AddField(string name, Type fType)
{
FieldRef field = new FieldRef(this,name,fType);
metaData.AddToTable(MDTable.MemberRef,field);
return field;
}
public ClassRef AddClass (string nsName, string name)
{
ClassRef aClass = new ClassRef(nsName,name,metaData);
metaData.AddToTable(MDTable.TypeRef,aClass);
aClass.SetParent(this);
return aClass;
}
public ClassRef AddValueClass (string nsName, string name)
{
ClassRef aClass = AddClass (nsName, name);
aClass.MakeValueClass (ValueClass.ValueType);
return aClass;
}
internal void SetParent(IResolutionScope par)
{
parent = par;
}
internal override string TypeName()
{
if ((parent != null) && (parent is AssemblyRef))
return (nameSpace + "." + name + ", " + ((AssemblyRef)parent).TypeName());
else
return (nameSpace + name);
}
internal sealed override uint Size(MetaData md)
{
return md.CodedIndexSize(CIx.ResolutionScope) + 2 *
md.StringsIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.WriteCodedIndex(CIx.ResolutionScope,(MetaDataElement) parent);
output.StringsIndex(nameIx);
output.StringsIndex(nameSpaceIx);
}
internal override sealed uint TypeDefOrRefToken()
{
uint cIx = Row;
cIx = (cIx << 2) | 0x1;
return cIx;
}
internal override void TypeSig(MemoryStream sig)
{
sig.WriteByte(GetTypeIndex());
MetaData.CompressNum(TypeDefOrRefToken(),sig);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.TypeDefOrRef) : return 1;
case (CIx.HasCustomAttr) : return 2;
case (CIx.MemberRefParent) : return 1;
case (CIx.ResolutionScope) : return 3;
}
return 0;
}
}
/**************************************************************************/
public class ExternClassRef : ClassRef {
ExternClass externClass;
internal ExternClassRef(TypeAttr attrs, string nsName, string name,
MetaDataElement declRef, MetaData md) : base(nsName,name,md)
{
externClass = new ExternClass(attrs,nameSpaceIx,nameIx,declRef);
metaData.AddToTable(MDTable.ExportedType,externClass);
}
internal ExternClassRef(string name, MetaData md) : base(null,name,md)
{
}
public ClassRef AddNestedClass(TypeAttr attrs, string name)
{
ExternClassRef nestedClass = new ExternClassRef(name,metaData);
externClass = new ExternClass(attrs,0,nameIx,this.externClass);
metaData.AddToTable(MDTable.ExportedType,externClass);
return nestedClass;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a class defined in another module of THIS assembly
/// and exported (.class extern)
/// </summary>
internal class ExternClass : Class {
MetaDataElement parent;
uint flags;
internal ExternClass(TypeAttr attr, uint nsIx, uint nIx,
MetaDataElement paren) : base(nsIx,nIx)
{
flags = (uint)attr;
parent = paren;
tabIx = MDTable.ExportedType;
}
internal sealed override uint Size(MetaData md)
{
return 8 + 2* md.StringsIndexSize() + md.CodedIndexSize(CIx.Implementation);
}
internal sealed override void Write(FileImage output)
{
output.Write(flags);
output.Write(0);
output.StringsIndex(nameIx);
output.StringsIndex(nameSpaceIx);
output.WriteCodedIndex(CIx.Implementation,parent);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 17;
case (CIx.Implementation) : return 2;
}
return 0;
}
}
public class GenParam : Class {
private int index;
private string param_name;
private uint sigIx = 0;
public GenParam (int index, string name, GenParamType ptype) : base ((byte) ptype)
{
this.index = index;
this.param_name = name;
tabIx = MDTable.TypeSpec;
}
public int Index {
get { return index; }
set { index = value; }
}
public string Name {
get { return param_name; }
set { param_name = value; }
}
public GenParamType Type {
get { return (GenParamType) GetTypeIndex (); }
}
internal sealed override void BuildTables (MetaData md)
{
if (done)
return;
MemoryStream str = new MemoryStream ();
TypeSig (str);
sigIx = md.AddToBlobHeap (str.ToArray ());
done = true;
}
internal sealed override void TypeSig(MemoryStream str)
{
if (index < 0)
throw new PEFileException (String.Format ("Unresolved {0} - {1}", (GenParamType) GetTypeIndex (), param_name));
str.WriteByte(typeIndex);
MetaData.CompressNum ((uint) index, str);
}
internal override uint Size(MetaData md)
{
return md.BlobIndexSize();
}
internal sealed override void Write (FileImage output)
{
output.BlobIndex (sigIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.TypeDefOrRef) : return 2;
case (CIx.HasCustomAttr) : return 13;
case (CIx.MemberRefParent) : return 4;
}
return 0;
}
}
public class GenericTypeInst : Class {
private Type gen_type;
private Type[] gen_param;
bool inTable = false;
uint sigIx = 0;
public GenericTypeInst (Type gen_type, Type[] gen_param)
: base ((byte) PrimitiveType.GenericInst.GetTypeIndex ())
{
this.gen_type = gen_type;
this.gen_param = gen_param;
tabIx = MDTable.TypeSpec;
}
internal override MetaDataElement GetTypeSpec (MetaData md)
{
if (!inTable) {
md.AddToTable (MDTable.TypeSpec, this);
inTable = true;
}
return this;
}
internal sealed override void TypeSig(MemoryStream str)
{
str.WriteByte(typeIndex);
gen_type.TypeSig (str);
MetaData.CompressNum ((uint) gen_param.Length, str);
foreach (Type param in gen_param)
param.TypeSig (str);
}
internal sealed override void BuildTables (MetaData md)
{
if (done)
return;
MemoryStream str = new MemoryStream ();
TypeSig (str);
sigIx = md.AddToBlobHeap (str.ToArray ());
done = true;
}
internal sealed override uint Size (MetaData md)
{
return md.BlobIndexSize ();
}
internal sealed override void Write (FileImage output)
{
output.BlobIndex (sigIx);
}
internal sealed override uint GetCodedIx (CIx code)
{
switch (code) {
case (CIx.TypeDefOrRef): return 2;
case (CIx.MemberRefParent): return 4;
case (CIx.HasCustomAttr): return 13;
}
return 0;
}
}
public class GenericMethodSig {
private Type[] gen_param;
private bool done;
private uint sigIx = 0;
public GenericMethodSig (Type[] gen_param)
{
this.gen_param = gen_param;
done = false;
}
internal void TypeSig (MemoryStream str)
{
str.WriteByte (0x0A); /* GENERIC_INST */
MetaData.CompressNum ((uint) gen_param.Length, str);
foreach (Type param in gen_param)
param.TypeSig (str);
}
internal uint GetSigIx (MetaData md)
{
if (done)
return sigIx;
MemoryStream sig = new MemoryStream();
TypeSig (sig);
sigIx = md.AddToBlobHeap (sig.ToArray());
done = true;
return sigIx;
}
}
public class Sentinel : Type {
public Sentinel () : base (0x41) { }
internal sealed override void TypeSig(MemoryStream str)
{
str.WriteByte(typeIndex);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a FunctionPointer type
/// </summary>
///
public class MethPtrType : Type {
bool varArgMeth;
Type retType;
Type [] parList;
Type [] optParList;
CallConv callConv;
uint numPars;
uint numOptPars;
uint sigIx = 0;
/// <summary>
/// Create a new function pointer type
/// </summary>
/// <param name="meth">the function to be referenced</param>
public MethPtrType (CallConv callconv, Type retType, Type[] pars,
bool varArgMeth, Type[] optPars) : base(0x1B)
{
this.retType = retType;
callConv = callconv;
parList = pars;
this.varArgMeth = varArgMeth;
if (parList != null) numPars = (uint)parList.Length;
if (varArgMeth) {
optParList = optPars;
if (optParList != null) numOptPars = (uint)optParList.Length;
callConv |= CallConv.Vararg;
}
tabIx = MDTable.TypeSpec;
}
internal sealed override void TypeSig(MemoryStream sig)
{
sig.WriteByte(typeIndex);
// Bootlegged from method ref
sig.WriteByte((byte)callConv);
MetaData.CompressNum (numPars + numOptPars, sig);
retType.TypeSig (sig);
for (int i=0; i < numPars; i++) {
parList[i].TypeSig (sig);
}
if (varArgMeth) {
sig.WriteByte (0x41); // Write the sentinel
for (int i=0; i < numOptPars; i++) {
optParList[i].TypeSig (sig);
}
}
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
MemoryStream sig = new MemoryStream();
TypeSig(sig);
sigIx = md.AddToBlobHeap(sig.ToArray());
done = true;
}
internal sealed override uint Size(MetaData md)
{
return md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.BlobIndex(sigIx);
}
internal sealed override uint GetCodedIx(CIx code) { return 0x1B; }
}
#region Array Types
/* Classes for Arrays */
/// <summary>
/// The IL Array type
/// </summary>
public abstract class Array : Type {
protected Type elemType;
protected MetaData metaData;
protected string cnameSpace, cname;
internal Array(Type eType, byte TypeId) : base(TypeId)
{
elemType = eType;
tabIx = MDTable.TypeSpec;
}
}
/// <summary>
/// Single dimensional array with zero lower bound
/// </summary>
public class ZeroBasedArray : Array {
/// <summary>
/// Create a new array - elementType[]
/// </summary>
/// <param name="elementType">the type of the array elements</param>
public ZeroBasedArray(Type elementType) : base (elementType, PrimitiveType.SZArray.GetTypeIndex ()) { }
internal sealed override void TypeSig(MemoryStream str)
{
str.WriteByte(typeIndex);
elemType.TypeSig(str);
}
}
/// <summary>
/// Multi dimensional array with explicit bounds
/// </summary>
public class BoundArray : Array {
int[] lowerBounds;
int[] sizes;
uint numDims;
/// <summary>
/// Create a new multi dimensional array type
/// eg. elemType[1..5,3..10,5,,] would be
/// new BoundArray(elemType,5,[1,3,0],[5,10,4])
/// </summary>
/// <param name="elementType">the type of the elements</param>
/// <param name="dimensions">the number of dimensions</param>
/// <param name="loBounds">lower bounds of dimensions</param>
/// <param name="sizes">sizes for the dimensions</param>
public BoundArray(Type elementType, uint dimensions, int[] loBounds,
int[] sizes) : base (elementType,0x14)
{
numDims = dimensions;
lowerBounds = loBounds;
this.sizes = sizes;
}
/// <summary>
/// Create a new multi dimensional array type
/// eg. elemType[5,10,20] would be new BoundArray(elemType,3,[5,10,20])
/// </summary>
/// <param name="elementType">the type of the elements</param>
/// <param name="dimensions">the number of dimensions</param>
/// <param name="size">the sizes of the dimensions</param>
public BoundArray(Type elementType, uint dimensions, int[] size)
: base (elementType,0x14)
{
numDims = dimensions;
sizes = size;
}
/// <summary>
/// Create a new multi dimensional array type
/// eg. elemType[,,] would be new BoundArray(elemType,3)
/// </summary>
/// <param name="elementType">the type of the elements</param>
/// <param name="dimensions">the number of dimensions</param>
public BoundArray(Type elementType, uint dimensions)
: base (elementType,0x14)
{
numDims = dimensions;
}
internal sealed override void TypeSig(MemoryStream str)
{
str.WriteByte(typeIndex);
elemType.TypeSig(str);
MetaData.CompressNum(numDims,str);
if ((sizes != null) && (sizes.Length > 0)) {
MetaData.CompressNum((uint)sizes.Length,str);
for (int i=0; i < sizes.Length; i++) {
MetaData.CompressNum((uint)sizes[i],str);
}
} else str.WriteByte(0);
if ((lowerBounds != null) && (lowerBounds.Length > 0)) {
MetaData.CompressNum((uint)lowerBounds.Length,str);
for (int i=0; i < lowerBounds.Length; i++) {
CompressSignedNum (lowerBounds[i],str);
}
} else str.WriteByte(0);
}
private void CompressSignedNum (int val, MemoryStream str)
{
uint uval = (uint) val;
byte sign = 0;
if (val < 0) {
val = -val;
sign = 1;
}
/* Map the signed number to an unsigned number in two ways.
fval: left-rotated 2's complement representation
sval: map the signed number to unsigned as follows: 0 -> 0, -1 -> 1, 1 -> 2, -2 -> 3, 2 -> 4, ....
the mapping is: x -> 2*|x| - signbit(x)
*/
uint fval = (uval << 1) | sign;
int sval = (val << 1) - sign;
/* An overly clever transformation:
a. sval is used to determine the number of bytes in the compressed representation.
b. fval is truncated to the appropriate number of bits and output using the
normal unsigned-int compressor.
However, or certain values, the truncated fval doesn't carry enough information to round trip.
(fval & 0x3FFF) <= 0x7F => compressor emits 1 byte, not 2 => there is aliasing of values
So, we use full 4 bytes to encode such values.
LAMESPEC: The Microsoft implementation doesn't appear to handle this subtle case.
e.g., it ends up encoding -8192 as the byte 0x01, which decodes to -64
*/
if (sval <= 0x7F)
MetaData.CompressNum (fval & 0x7F, str);
else if (sval <= 0x3FFF && (fval & 0x3FFF) > 0x7F)
MetaData.CompressNum (fval & 0x3FFF, str);
else if (sval <= 0x1FFFFFFF && (fval & 0x1FFFFFFF) > 0x3FFF)
MetaData.CompressNum (fval & 0x1FFFFFFF, str);
else
/* FIXME: number cannot be represented. Report a warning. */
// throw new Exception ("cannot represent signed value" + -val);
MetaData.CompressNum (fval, str);
}
}
#endregion
/* Empty interface for grouping TypeRef's possible ResolutionScope
namely : Module, ModuleRef, AssemblyRef and TypeRef */
public interface IResolutionScope {
}
/**************************************************************************/
/// <summary>
/// Base class for scopes (extended by Module, ModuleRef, Assembly, AssemblyRef)
/// </summary>
public abstract class ResolutionScope : MetaDataElement, IResolutionScope {
protected uint nameIx = 0;
protected MetaData metaData;
protected string name;
internal ResolutionScope(string name, MetaData md)
{
metaData = md;
this.name = name;
nameIx = md.AddToStringsHeap(name);
}
internal string GetName() { return name; }
}
/**************************************************************************/
/// <summary>
/// Descriptor for THIS assembly (.assembly)
/// </summary>
public class Assembly : ResolutionScope {
ushort majorVer, minorVer, buildNo, revisionNo;
uint flags;
uint hashAlgId;
uint keyIx = 0, cultIx = 0;
bool hasPublicKey = false;
internal Assembly(string name, MetaData md) : base(name,md)
{
tabIx = MDTable.Assembly;
}
/// <summary>
/// Add details about THIS assembly
/// </summary>
/// <param name="majVer">Major Version</param>
/// <param name="minVer">Minor Version</param>
/// <param name="bldNo">Build Number</param>
/// <param name="revNo">Revision Number</param>
/// <param name="key">Hash Key</param>
/// <param name="hash">Hash Algorithm</param>
/// <param name="cult">Culture</param>
public void AddAssemblyInfo(int majVer, int minVer, int bldNo, int revNo,
byte[] key, uint hash, string cult)
{
majorVer = (ushort)majVer;
minorVer = (ushort)minVer;
buildNo = (ushort)bldNo;
revisionNo = (ushort)revNo;
hashAlgId = hash;
hasPublicKey = (key != null);
keyIx = metaData.AddToBlobHeap(key);
cultIx = metaData.AddToStringsHeap(cult);
}
/// <summary>
/// Add an attribute to THIS assembly
/// </summary>
/// <param name="aa">assembly attribute</param>
public void AddAssemblyAttr(AssemAttr aa)
{
flags |= (uint)aa;
}
internal sealed override uint Size(MetaData md)
{
return 16 + md.BlobIndexSize() + 2 * md.StringsIndexSize();
}
internal sealed override void Write(FileImage output)
{
// Console.WriteLine("Writing assembly element with nameIx of " + nameIx + " at file offset " + output.Seek(0,SeekOrigin.Current));
output.Write((uint)hashAlgId);
output.Write(majorVer);
output.Write(minorVer);
output.Write(buildNo);
output.Write(revisionNo);
output.Write(flags);
output.BlobIndex(keyIx);
output.StringsIndex(nameIx);
output.StringsIndex(cultIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 14;
case (CIx.HasDeclSecurity) : return 2;
}
return 0;
}
internal bool HasPublicKey {
get { return hasPublicKey; }
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for THIS module
/// </summary>
public class Module : ResolutionScope, IExternRef {
Guid mvid;
uint mvidIx = 0;
internal Module(string name, MetaData md) : base(name,md)
{
mvid = Guid.NewGuid();
mvidIx = md.AddToGUIDHeap(mvid);
tabIx = MDTable.Module;
}
public Guid Guid {
get { return mvid; }
}
public ClassRef AddClass(string nsName, string name)
{
ClassRef aClass = new ClassRef (nsName, name, metaData);
metaData.AddToTable (MDTable.TypeRef, aClass);
aClass.SetParent (this);
return aClass;
}
public ClassRef AddValueClass(string nsName, string name)
{
ClassRef aClass = AddClass (nsName, name);
aClass.MakeValueClass (ValueClass.ValueType);
return aClass;
}
internal sealed override uint Size(MetaData md)
{
return 2 + md.StringsIndexSize() + 3 * md.GUIDIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.Write((short)0);
output.StringsIndex(nameIx);
output.GUIDIndex(mvidIx);
output.GUIDIndex(0);
output.GUIDIndex(0);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 7;
case (CIx.ResolutionScope) : return 0;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for another module in THIS assembly
/// </summary>
public class ModuleRef : ResolutionScope, IExternRef {
internal ModuleRef(MetaData md, string name) : base(name,md)
{
tabIx = MDTable.ModuleRef;
}
/// <summary>
/// Add a class to this external module. This is a class declared in
/// another module of THIS assembly.
/// </summary>
/// <param name="nsName">name space name</param>
/// <param name="name">class name</param>
/// <returns>a descriptor for this class in another module</returns>
public ClassRef AddClass(string nsName, string name)
{
ClassRef aClass = new ClassRef(nsName,name,metaData);
metaData.AddToTable(MDTable.TypeRef,aClass);
aClass.SetParent(this);
return aClass;
}
/// <summary>
/// Make a file descriptor to correspond to this module. The file
/// descriptor will have the same name as the module descriptor
/// </summary>
/// <param name="hashBytes">the hash of the file</param>
/// <param name="hasMetaData">the file contains metadata</param>
/// <param name="entryPoint">the program entry point is in this file</param>
/// <returns>a descriptor for the file which contains this module</returns>
public FileRef MakeFile(byte[] hashBytes, bool hasMetaData, bool entryPoint)
{
FileRef file = new FileRef(nameIx,hashBytes,hasMetaData,entryPoint,metaData);
metaData.AddToTable(MDTable.File,file);
return file;
}
/// <summary>
/// Add a value class to this module. This is a class declared in
/// another module of THIS assembly.
/// </summary>
/// <param name="nsName">name space name</param>
/// <param name="name">class name</param>
/// <returns></returns>
public ClassRef AddValueClass(string nsName, string name)
{
ClassRef aClass = new ClassRef(nsName,name,metaData);
metaData.AddToTable(MDTable.TypeRef,aClass);
aClass.SetParent(this);
aClass.MakeValueClass(ValueClass.ValueType);
return aClass;
}
/// <summary>
/// Add a class which is declared public in this external module of
/// THIS assembly. This class will be exported from this assembly.
/// The ilasm syntax for this is .extern class
/// </summary>
/// <param name="attrSet">attributes of the class to be exported</param>
/// <param name="nsName">name space name</param>
/// <param name="name">external class name</param>
/// <param name="declFile">the file where the class is declared</param>
/// <param name="isValueClass">is this class a value type?</param>
/// <returns>a descriptor for this external class</returns>
public ExternClassRef AddExternClass(TypeAttr attrSet, string nsName,
string name, FileRef declFile,
bool isValueClass) {
ExternClassRef cRef = new ExternClassRef(attrSet,nsName,name,declFile,metaData);
metaData.AddToTable(MDTable.TypeRef,cRef);
cRef.SetParent(this);
if (isValueClass) cRef.MakeValueClass(ValueClass.ValueType);
return cRef;
}
/// <summary>
/// Add a "global" method in another module
/// </summary>
/// <param name="name">method name</param>
/// <param name="retType">return type</param>
/// <param name="pars">method parameter types</param>
/// <returns>a descriptor for this method in anther module</returns>
public MethodRef AddMethod(string name, Type retType, Type[] pars)
{
MethodRef meth = new MethodRef(this,name,retType,pars,false,null, 0);
metaData.AddToTable(MDTable.MemberRef,meth);
return meth;
}
/// <summary>
/// Add a vararg method to this class
/// </summary>
/// <param name="name">method name</param>
/// <param name="retType">return type</param>
/// <param name="pars">parameter types</param>
/// <param name="optPars">optional param types for this vararg method</param>
/// <returns>a descriptor for this method</returns>
public MethodRef AddVarArgMethod(string name, Type retType,
Type[] pars, Type[] optPars) {
MethodRef meth = new MethodRef(this,name,retType,pars,true,optPars, 0);
metaData.AddToTable(MDTable.MemberRef,meth);
return meth;
}
/// <summary>
/// Add a field in another module
/// </summary>
/// <param name="name">field name</param>
/// <param name="fType">field type</param>
/// <returns>a descriptor for this field in another module</returns>
public FieldRef AddField(string name, Type fType)
{
FieldRef field = new FieldRef(this,name,fType);
metaData.AddToTable(MDTable.MemberRef,field);
return field;
}
internal sealed override uint Size(MetaData md)
{
return md.StringsIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.StringsIndex(nameIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 12;
case (CIx.MemberRefParent) : return 2;
case (CIx.ResolutionScope) : return 1;
}
return 0;
}
}
#region Classes for Constants
/// <summary>
/// Descriptor for a constant value
/// </summary>
public abstract class Constant {
protected uint size = 0;
protected Type type;
protected uint blobIndex;
protected bool addedToBlobHeap = false;
internal Constant() { }
internal virtual uint GetBlobIndex(MetaData md) { return 0; }
internal uint GetSize() { return size; }
internal byte GetTypeIndex() { return type.GetTypeIndex(); }
internal virtual void Write(BinaryWriter bw) { }
}
/// <summary>
/// Descriptor for a constant value
/// </summary>
public abstract class DataConstant : Constant {
private uint dataOffset = 0;
internal DataConstant() { }
public uint DataOffset {
get { return dataOffset; }
set { dataOffset = value; }
}
}
/// <summary>
/// Boolean constant
/// </summary>
public class BoolConst : DataConstant {
bool val;
/// <summary>
/// Create a new boolean constant with the value "val"
/// </summary>
/// <param name="val">value of this boolean constant</param>
public BoolConst(bool val)
{
this.val = val;
size = 1;
type = PrimitiveType.Boolean;
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
if (val) blobIndex = md.AddToBlobHeap((sbyte)1);
else blobIndex = md.AddToBlobHeap((sbyte)0);
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
if (val) bw.Write((sbyte)1);
else bw.Write((sbyte)0);
}
}
public class ByteArrConst : DataConstant {
internal byte[] val;
public ByteArrConst(byte[] val)
{
type = PrimitiveType.String;
this.val = val;
size = (uint)val.Length;
}
public Type Type {
get { return type; }
set { type = value; }
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
blobIndex = md.AddToBlobHeap(val);
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
bw.Write(val);
}
}
public class CharConst : Constant {
char val;
public CharConst(char val)
{
this.val = val;
size = 2;
type = PrimitiveType.Char;
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
blobIndex = md.AddToBlobHeap(val);
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
bw.Write(val);
}
}
public class FloatConst : DataConstant {
float val;
public FloatConst(float val)
{
this.val = val;
size = 4;
type = PrimitiveType.Float32;
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
blobIndex = md.AddToBlobHeap(val);
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
bw.Write(val);
}
}
public class DoubleConst : DataConstant {
double val;
public DoubleConst(double val)
{
this.val = val;
size = 8;
type = PrimitiveType.Float64;
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
blobIndex = md.AddToBlobHeap(val);
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
bw.Write(val);
}
}
public class IntConst : DataConstant {
long val;
public IntConst(sbyte val)
{
this.val = val;
size = 1;
type = PrimitiveType.Int8;
}
public IntConst(short val)
{
this.val = val;
size = 2;
type = PrimitiveType.Int16;
}
public IntConst(int val)
{
this.val = val;
size = 4;
type = PrimitiveType.Int32;
}
public IntConst(long val)
{
this.val = val;
size = 8;
type = PrimitiveType.Int64;
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
switch (size) {
case (1) : blobIndex = md.AddToBlobHeap((sbyte)val); break;
case (2) : blobIndex = md.AddToBlobHeap((short)val); break;
case (4) : blobIndex = md.AddToBlobHeap((int)val); break;
default : blobIndex = md.AddToBlobHeap(val); break;
}
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
switch (size) {
case (1) : bw.Write((sbyte)val); break;
case (2) : bw.Write((short)val); break;
case (4) : bw.Write((int)val); break;
default : bw.Write(val); break;
}
}
}
public class UIntConst : DataConstant {
ulong val;
public UIntConst(byte val)
{
this.val = val;
size = 1;
type = PrimitiveType.UInt8;
}
public UIntConst(ushort val)
{
this.val = val;
size = 2;
type = PrimitiveType.UInt16;
}
public UIntConst(uint val)
{
this.val = val;
size = 4;
type = PrimitiveType.UInt32;
}
public UIntConst(ulong val)
{
this.val = val;
size = 8;
type = PrimitiveType.UInt64;
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
switch (size) {
case (1) : blobIndex = md.AddToBlobHeap((byte)val); break;
case (2) : blobIndex = md.AddToBlobHeap((ushort)val); break;
case (4) : blobIndex = md.AddToBlobHeap((uint)val); break;
default : blobIndex = md.AddToBlobHeap(val); break;
}
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
switch (size) {
case (1) : bw.Write((byte)val); break;
case (2) : bw.Write((ushort)val); break;
case (4) : bw.Write((uint)val); break;
default : bw.Write(val); break;
}
}
}
public class StringConst : DataConstant {
internal string val;
public StringConst(string val)
{
this.val = val;
size = (uint)val.Length; // need to add null ??
type = PrimitiveType.String;
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
byte [] b = Encoding.Unicode.GetBytes (val);
blobIndex = md.AddToBlobHeap(b);
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
bw.Write(val);
}
}
public class NullConst : Constant {
public NullConst()
{
size = 4;
type = PrimitiveType.Class;
}
internal sealed override uint GetBlobIndex(MetaData md)
{
if (!addedToBlobHeap) {
blobIndex = md.AddToBlobHeap((int)0);
addedToBlobHeap = true;
}
return blobIndex;
}
internal sealed override void Write(BinaryWriter bw)
{
bw.Write((int)0);
}
}
public class AddressConstant : DataConstant {
DataConstant data;
public AddressConstant(DataConstant dConst)
{
data = dConst;
size = 4;
type = PrimitiveType.TypedRef;
}
internal sealed override void Write(BinaryWriter bw)
{
((FileImage)bw).WriteDataRVA(data.DataOffset);
}
}
public class RepeatedConstant : DataConstant {
DataConstant data;
uint repCount;
public RepeatedConstant(DataConstant dConst, int repeatCount)
{
data = dConst;
repCount = (uint)repeatCount;
int[] sizes = new int[1];
sizes[0] = repeatCount;
type = new BoundArray(type,1,sizes);
size = data.GetSize() * repCount;
}
internal sealed override void Write(BinaryWriter bw)
{
for (int i=0; i < repCount; i++) {
data.Write(bw);
}
}
}
public class ArrayConstant : DataConstant {
DataConstant[] dataVals;
public ArrayConstant(DataConstant[] dVals)
{
dataVals = dVals;
for (int i=0; i < dataVals.Length; i++) {
size += dataVals[i].GetSize();
}
}
public int? ExplicitSize { get; set; }
internal sealed override void Write(BinaryWriter bw)
{
for (int i=0; i < dataVals.Length; i++) {
dataVals[i].Write(bw);
}
}
}
public class ClassType : Constant {
string name;
Class desc;
public ClassType(string className)
{
name = className;
type = PrimitiveType.ClassType;
}
public ClassType(Class classDesc)
{
desc = classDesc;
type = PrimitiveType.ClassType;
}
internal override void Write(BinaryWriter bw)
{
if (name == null) name = desc.TypeName();
bw.Write(name);
}
}
#endregion
/**************************************************************************/
/// <summary>
/// Descriptor for a custom modifier of a type (modopt or modreq)
/// </summary>
public class CustomModifiedType : Type {
Type type;
Class cmodType;
PrimitiveTypeRef cmodPrimType;
/// <summary>
/// Create a new custom modifier for a type
/// </summary>
/// <param name="type">the type to be modified</param>
/// <param name="cmod">the modifier</param>
/// <param name="cmodType">the type reference to be associated with the type</param>
public CustomModifiedType(Type type, CustomModifier cmod, Class cmodType)
: base((byte)cmod)
{
this.type = type;
this.cmodType = cmodType;
}
public CustomModifiedType(Type type, CustomModifier cmod, PrimitiveTypeRef cmodType)
: base((byte)cmod)
{
this.type = type;
this.cmodPrimType = cmodType;
}
internal sealed override void TypeSig(MemoryStream str)
{
str.WriteByte(typeIndex);
if (cmodType != null) {
MetaData.CompressNum(cmodType.TypeDefOrRefToken(),str);
} else {
MetaData.CompressNum(cmodPrimType.TypeDefOrRefToken(),str);
}
type.TypeSig(str);
}
}
/**************************************************************************/
/// <summary>
/// Base class for Event and Property descriptors
/// </summary>
public class Feature : MetaDataElement {
internal enum MethodType : ushort { Setter = 0x01, Getter, Other = 0x04, AddOn = 0x08,
RemoveOn = 0x10, Fire = 0x20 }
private static readonly int INITSIZE = 5;
private static readonly ushort specialName = 0x200;
private static readonly ushort rtSpecialName = 0x400;
protected ClassDef parent;
protected ushort flags = 0;
protected string name;
protected int tide = 0;
protected uint nameIx;
protected MethodSemantics[] methods = new MethodSemantics[INITSIZE];
internal Feature(string name, ClassDef par)
{
parent = par;
this.name = name;
}
internal void AddMethod(MethodDef meth, MethodType mType)
{
if (tide >= methods.Length) {
int len = methods.Length;
MethodSemantics[] mTmp = methods;
methods = new MethodSemantics[len * 2];
for (int i=0; i < len; i++) {
methods[i] = mTmp[i];
}
}
methods[tide++] = new MethodSemantics(mType,meth,this);
}
/// <summary>
/// Set the specialName attribute for this Event or Property
/// </summary>
public void SetSpecialName()
{
flags |= specialName;
}
/// <summary>
/// Set the RTSpecialName attribute for this Event or Property
/// </summary>
public void SetRTSpecialName()
{
flags |= rtSpecialName;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for an event
/// </summary>
public class Event : Feature {
Type eventType;
internal Event(string name, Type eType, ClassDef parent)
: base(name, parent)
{
eventType = eType;
tabIx = MDTable.Event;
}
/// <summary>
/// Add the addon method to this event
/// </summary>
/// <param name="addon">the addon method</param>
public void AddAddon(MethodDef addon)
{
AddMethod(addon,MethodType.AddOn);
}
/// <summary>
/// Add the removeon method to this event
/// </summary>
/// <param name="removeOn">the removeon method</param>
public void AddRemoveOn(MethodDef removeOn)
{
AddMethod(removeOn,MethodType.RemoveOn);
}
/// <summary>
/// Add the fire method to this event
/// </summary>
/// <param name="fire">the fire method</param>
public void AddFire(MethodDef fire)
{
AddMethod(fire,MethodType.Fire);
}
/// <summary>
/// Add another method to this event
/// </summary>
/// <param name="other">the method to be added</param>
public void AddOther(MethodDef other)
{
AddMethod(other,MethodType.Other);
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
nameIx = md.AddToStringsHeap(name);
for (int i=0; i < tide; i++) {
md.AddToTable(MDTable.MethodSemantics,methods[i]);
}
done = true;
}
internal sealed override uint Size(MetaData md)
{
return 2 + md.StringsIndexSize() + md.CodedIndexSize(CIx.TypeDefOrRef);
}
internal sealed override void Write(FileImage output)
{
output.Write(flags);
output.StringsIndex(nameIx);
output.WriteCodedIndex(CIx.TypeDefOrRef,eventType);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 10;
case (CIx.HasSemantics) : return 0;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for the Property of a class
/// </summary>
public class Property : Feature {
private static readonly byte PropertyTag = 0x8;
private bool instance;
MethodDef getterMeth;
ConstantElem constVal;
uint typeBlobIx = 0;
Type[] parList;
Type returnType;
uint numPars = 0;
internal Property(string name, Type retType, Type[] pars, ClassDef parent) : base(name, parent)
{
returnType = retType;
parList = pars;
if (pars != null) numPars = (uint)pars.Length;
tabIx = MDTable.Property;
}
/// <summary>
/// Add a set method to this property
/// </summary>
/// <param name="setter">the set method</param>
public void AddSetter(MethodDef setter)
{
AddMethod(setter,MethodType.Setter);
}
/// <summary>
/// Add a get method to this property
/// </summary>
/// <param name="getter">the get method</param>
public void AddGetter(MethodDef getter)
{
AddMethod(getter,MethodType.Getter);
getterMeth = getter;
}
/// <summary>
/// Add another method to this property
/// </summary>
/// <param name="other">the method</param>
public void AddOther(MethodDef other)
{
AddMethod(other,MethodType.Other);
}
/// <summary>
/// Add an initial value for this property
/// </summary>
/// <param name="constVal">the initial value for this property</param>
public void AddInitValue(Constant constVal)
{
this.constVal = new ConstantElem(this,constVal);
}
public void SetInstance (bool isInstance)
{
this.instance = isInstance;
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
nameIx = md.AddToStringsHeap(name);
MemoryStream sig = new MemoryStream();
byte tag = PropertyTag;
if (instance)
tag |= 0x20;
sig.WriteByte(tag);
MetaData.CompressNum(numPars,sig);
returnType.TypeSig(sig);
for (int i=0; i < numPars; i++) {
parList[i].TypeSig(sig);
}
typeBlobIx = md.AddToBlobHeap(sig.ToArray());
for (int i=0; i < tide; i++) {
md.AddToTable(MDTable.MethodSemantics,methods[i]);
}
if (constVal != null) {
md.AddToTable(MDTable.Constant,constVal);
constVal.BuildTables(md);
}
done = true;
}
internal sealed override uint Size(MetaData md)
{
return 2 + md.StringsIndexSize() + md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.Write(flags);
output.StringsIndex(nameIx);
output.BlobIndex(typeBlobIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 9;
case (CIx.HasConst) : return 2;
case (CIx.HasSemantics) : return 1;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Base class for field/methods (member of a class)
/// </summary>
public abstract class Member : MetaDataElement {
protected string name;
protected uint nameIx = 0, sigIx = 0;
internal Member(string memName)
{
name = memName;
tabIx = MDTable.MemberRef;
}
}
/*****************************************************************************/
/// <summary>
/// Descriptor for a field of a class
/// </summary>
public abstract class Field : Member {
protected static readonly byte FieldSig = 0x6;
protected Type type;
internal Field(string pfName, Type pfType) : base(pfName)
{
type = pfType;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a field defined in a class of THIS assembly/module
/// </summary>
public class FieldDef : Field {
//private static readonly uint PInvokeImpl = 0x2000;
private static readonly ushort HasFieldRVA = 0x100;
private static readonly ushort HasDefault = 0x8000;
FieldRVA rva;
ConstantElem constVal;
FieldLayout layout;
FieldMarshal marshalInfo;
ushort flags;
internal FieldDef(string name, Type fType) : base(name,fType)
{
tabIx = MDTable.Field;
}
internal FieldDef(FieldAttr attrSet, string name, Type fType) : base(name, fType)
{
flags = (ushort)attrSet;
tabIx = MDTable.Field;
}
/// <summary>
/// Add an attribute(s) to this field
/// </summary>
/// <param name="fa">the attribute(s) to be added</param>
public void AddFieldAttr(FieldAttr fa)
{
flags |= (ushort)fa;
}
/// <summary>
/// Add a value for this field
/// </summary>
/// <param name="val">the value for the field</param>
public void AddValue(Constant val)
{
constVal = new ConstantElem(this,val);
flags |= HasDefault;
}
/// <summary>
/// Add an initial value for this field (at dataLabel) (.data)
/// </summary>
/// <param name="val">the value for the field</param>
/// <param name="repeatVal">the number of repetitions of this value</param>
public void AddDataValue(DataConstant val)
{
flags |= HasFieldRVA;
rva = new FieldRVA(this,val);
}
/// <summary>
/// Set the offset of the field. Used for sequential or explicit classes.
/// (.field [offs])
/// </summary>
/// <param name="offs">field offset</param>
public void SetOffset(uint offs)
{
layout = new FieldLayout(this,offs);
}
/// <summary>
/// Set the marshalling info for a field
/// </summary>
/// <param name="mInf"></param>
public void SetMarshalInfo(NativeType marshallType)
{
flags |= (ushort) FieldAttr.HasFieldMarshal;
marshalInfo = new FieldMarshal(this,marshallType);
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
nameIx = md.AddToStringsHeap(name);
MemoryStream sig = new MemoryStream();
sig.WriteByte(FieldSig);
type.TypeSig(sig);
sigIx = md.AddToBlobHeap(sig.ToArray());
if (rva != null) {
md.AddToTable(MDTable.FieldRVA,rva);
rva.BuildTables(md);
} else if (constVal != null) {
md.AddToTable(MDTable.Constant,constVal);
constVal.BuildTables(md);
}
if (layout != null) md.AddToTable(MDTable.FieldLayout,layout);
if (marshalInfo != null) {
md.AddToTable(MDTable.FieldMarshal,marshalInfo);
marshalInfo.BuildTables(md);
}
done = true;
}
internal sealed override uint Size(MetaData md)
{
return 2 + md.StringsIndexSize() + md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.Write(flags);
output.StringsIndex(nameIx);
output.BlobIndex(sigIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasConst) : return 0;
case (CIx.HasCustomAttr) : return 1;
case (CIx.HasFieldMarshal) : return 0;
case (CIx.MemberForwarded) : return 0;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a field of a class defined in another assembly/module
/// </summary>
public class FieldRef : Field {
MetaDataElement parent;
internal FieldRef(MetaDataElement paren, string name, Type fType) : base(name, fType)
{
parent = paren;
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
nameIx = md.AddToStringsHeap(name);
MemoryStream sig = new MemoryStream();
sig.WriteByte(FieldSig);
type.TypeSig(sig);
sigIx = md.AddToBlobHeap(sig.ToArray());
done = true;
}
internal sealed override uint Size(MetaData md)
{
return md.CodedIndexSize(CIx.MemberRefParent) + md.StringsIndexSize() + md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.WriteCodedIndex(CIx.MemberRefParent,parent);
output.StringsIndex(nameIx);
output.BlobIndex(sigIx);
}
internal sealed override uint GetCodedIx(CIx code) { return 6; }
}
/**************************************************************************/
/// <summary>
/// Base class for Method Descriptors
/// </summary>
public abstract class Method : Member {
internal Method (string methName) : base (methName)
{}
public abstract void AddCallConv(CallConv cconv);
internal abstract void TypeSig(MemoryStream sig);
internal abstract uint GetSigIx(MetaData md);
}
/**************************************************************************/
/// <summary>
/// Descriptor for a method defined in THIS assembly/module
/// IL .method
/// </summary>
public class MethodDef : Method {
private static readonly ushort PInvokeImpl = 0x2000;
//private static readonly uint UnmanagedExport = 0x0008;
// private static readonly byte LocalSigByte = 0x7;
uint parIx = 0, textOffset = 0;
private CallConv callConv = CallConv.Default;
private int gen_param_count;
MetaData metaData;
CILInstructions code;
Param[] parList;
Local[] locals;
bool initLocals;
ushort methFlags = 0, implFlags = 0;
int maxStack = 0, numPars = 0;
bool entryPoint = false;
LocalSig localSig;
ArrayList varArgSigList;
ImplMap pinvokeImpl;
Param ret_param;
internal MethodDef (MetaData md, string name, Param ret_param, Param [] pars)
: this (md, 0, 0, name, ret_param, pars)
{
}
internal MethodDef (MetaData md, MethAttr mAttrSet, ImplAttr iAttrSet, string name,
Param ret_param, Param [] pars)
: base (name)
{
methFlags = (ushort)mAttrSet;
implFlags = (ushort)iAttrSet;
this.ret_param = ret_param;
metaData = md;
parList = pars;
if (parList != null)
numPars = parList.Length;
tabIx = MDTable.Method;
}
internal Param[] GetPars()
{
return parList;
}
internal override uint GetSigIx(MetaData md)
{
MemoryStream sig = new MemoryStream();
TypeSig(sig);
return md.AddToBlobHeap(sig.ToArray());
}
public override void AddCallConv(CallConv cconv)
{
callConv |= cconv;
}
/// <summary>
/// Add some attributes to this method descriptor
/// </summary>
/// <param name="ma">the attributes to be added</param>
public void AddMethAttribute(MethAttr ma)
{
methFlags |= (ushort)ma;
}
/// <summary>
/// Add some implementation attributes to this method descriptor
/// </summary>
/// <param name="ia">the attributes to be added</param>
public void AddImplAttribute(ImplAttr ia)
{
implFlags |= (ushort)ia;
}
public void AddPInvokeInfo(ModuleRef scope, string methName,
PInvokeAttr callAttr) {
pinvokeImpl = new ImplMap((ushort)callAttr,this,methName,scope);
methFlags |= PInvokeImpl;
}
/// <summary>
/// Add a named generic type parameter
/// </summary>
public GenericParameter AddGenericParameter (short index, string name)
{
return AddGenericParameter (index, name, 0);
}
/// <summary>
/// Add a named generic type parameter with attributes
/// </summary>
public GenericParameter AddGenericParameter (short index, string name, GenericParamAttributes attr)
{
GenericParameter gp = new GenericParameter (this, metaData, index, name, attr);
metaData.AddToTable (MDTable.GenericParam, gp);
gen_param_count ++;
return gp;
}
/// <summary>
/// Set the maximum stack height for this method
/// </summary>
/// <param name="maxStack">the maximum height of the stack</param>
public void SetMaxStack(int maxStack)
{
this.maxStack = maxStack;
}
/// <summary>
/// Add local variables to this method
/// </summary>
/// <param name="locals">the locals to be added</param>
/// <param name="initLocals">are locals initialised to default values</param>
public void AddLocals(Local[] locals, bool initLocals)
{
this.locals = locals;
this.initLocals = initLocals;
}
/* Add Marshal info for return type */
public void AddRetTypeMarshallInfo (NativeType marshallType)
{
ret_param.AddMarshallInfo (marshallType);
}
/// <summary>
/// Mark this method as having an entry point
/// </summary>
public void DeclareEntryPoint()
{
entryPoint = true;
}
/// <summary>
/// Create a code buffer for this method to add the IL instructions to
/// </summary>
/// <returns>a buffer for this method's IL instructions</returns>
public CILInstructions CreateCodeBuffer()
{
code = new CILInstructions(metaData);
return code;
}
/// <summary>
/// Make a method reference descriptor for this method to be used
/// as a callsite signature for this vararg method
/// </summary>
/// <param name="optPars">the optional pars for the vararg method call</param>
/// <returns></returns>
public MethodRef MakeVarArgSignature(Type[] optPars)
{
Type[] pars = new Type[numPars];
MethodRef varArgSig;
for (int i=0; i < numPars; i++) {
pars[i] = parList[i].GetParType();
}
varArgSig = new MethodRef (this, name, ret_param.GetParType (), pars, true, optPars, 0);
if (varArgSigList == null)
varArgSigList = new ArrayList ();
varArgSigList.Add (varArgSig);
return varArgSig;
}
internal sealed override void TypeSig(MemoryStream sig)
{
sig.WriteByte((byte)callConv);
if ((callConv & CallConv.Generic) == CallConv.Generic)
MetaData.CompressNum ((uint) gen_param_count, sig);
MetaData.CompressNum((uint)numPars,sig);
ret_param.seqNo = 0;
ret_param.TypeSig (sig);
for (ushort i=0; i < numPars; i++) {
parList[i].seqNo = (ushort)(i+1);
parList[i].TypeSig(sig);
}
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
if (pinvokeImpl != null) {
md.AddToTable(MDTable.ImplMap,pinvokeImpl);
pinvokeImpl.BuildTables(md);
}
if (entryPoint) md.SetEntryPoint(this);
uint locToken = 0;
if (locals != null) {
localSig = new LocalSig(locals);
md.AddToTable(MDTable.StandAloneSig,localSig);
localSig.BuildTables(md);
locToken = localSig.Token();
}
if (code != null) {
code.CheckCode(locToken,initLocals,maxStack);
textOffset = md.AddCode(code);
}
nameIx = md.AddToStringsHeap(name);
sigIx = GetSigIx(md);
parIx = md.TableIndex(MDTable.Param);
if (ret_param.HasMarshalInfo || ret_param.HasCustomAttr) {
md.AddToTable(MDTable.Param, ret_param);
ret_param.BuildTables(md);
}
for (int i=0; i < numPars; i++) {
md.AddToTable(MDTable.Param,parList[i]);
parList[i].BuildTables(md);
}
if (varArgSigList != null) {
foreach (MethodRef varArgSig in varArgSigList) {
md.AddToTable(MDTable.MemberRef,varArgSig);
varArgSig.BuildTables(md);
}
}
// Console.WriteLine("method has " + numPars + " parameters");
done = true;
}
internal sealed override uint Size(MetaData md)
{
return 8 + md.StringsIndexSize() + md.BlobIndexSize() + md.TableIndexSize(MDTable.Param);
}
internal sealed override void Write(FileImage output)
{
if (ZeroRva ()) output.Write(0);
else output.WriteCodeRVA(textOffset);
output.Write(implFlags);
output.Write(methFlags);
output.StringsIndex(nameIx);
output.BlobIndex(sigIx);
output.WriteIndex(MDTable.Param,parIx);
}
internal bool ZeroRva ()
{
return (((methFlags & (ushort)MethAttr.Abstract) != 0) ||
((implFlags & (ushort)ImplAttr.Runtime) != 0) ||
((implFlags & (ushort)ImplAttr.InternalCall) != 0) ||
(pinvokeImpl != null)); // TODO: Not entirely true but works for now
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 0;
case (CIx.HasDeclSecurity) : return 1;
case (CIx.MemberRefParent) : return 3;
case (CIx.MethodDefOrRef) : return 0;
case (CIx.MemberForwarded) : return 1;
case (CIx.CustomAttributeType) : return 2;
case (CIx.TypeOrMethodDef) : return 1;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a method defined in another assembly/module
/// </summary>
public class MethodRef : Method {
private static readonly byte Sentinel = 0x41;
Type[] parList, optParList;
MetaDataElement parent;
uint numPars = 0, numOptPars = 0;
CallConv callConv = CallConv.Default;
Type retType;
int gen_param_count;
internal MethodRef(MetaDataElement paren, string name, Type retType,
Type[] pars, bool varArgMeth, Type[] optPars, int gen_param_count) : base(name)
{
parent = paren;
parList = pars;
this.retType = retType;
if (parList != null) numPars = (uint)parList.Length;
if (varArgMeth) {
optParList = optPars;
if (optParList != null) numOptPars = (uint)optParList.Length;
callConv = CallConv.Vararg;
}
this.gen_param_count = gen_param_count;
}
internal override uint GetSigIx(MetaData md)
{
MemoryStream sig = new MemoryStream();
TypeSig(sig);
return md.AddToBlobHeap(sig.ToArray());
}
public override void AddCallConv(CallConv cconv)
{
callConv |= cconv;
}
internal sealed override void TypeSig(MemoryStream sig)
{
sig.WriteByte((byte)callConv);
if ((callConv & CallConv.Generic) == CallConv.Generic)
MetaData.CompressNum ((uint) gen_param_count, sig);
MetaData.CompressNum(numPars+numOptPars,sig);
retType.TypeSig(sig);
for (int i=0; i < numPars; i++) {
parList[i].TypeSig(sig);
}
if (numOptPars > 0) {
sig.WriteByte(Sentinel);
for (int i=0; i < numOptPars; i++) {
optParList[i].TypeSig(sig);
}
}
}
internal sealed override void BuildTables(MetaData md)
{
if (done) return;
nameIx = md.AddToStringsHeap(name);
sigIx = GetSigIx(md);
done = true;
}
internal sealed override uint Size(MetaData md)
{
return md.CodedIndexSize(CIx.MemberRefParent) + md.StringsIndexSize() + md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.WriteCodedIndex(CIx.MemberRefParent,parent);
output.StringsIndex(nameIx);
output.BlobIndex(sigIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.HasCustomAttr) : return 6;
case (CIx.MethodDefOrRef) : return 1;
case (CIx.CustomAttributeType) : return 3;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Descriptors for native types used for marshalling
/// </summary>
public class NativeType {
public static readonly NativeType Void = new NativeType(0x01);
public static readonly NativeType Boolean = new NativeType(0x02);
public static readonly NativeType Int8 = new NativeType(0x03);
public static readonly NativeType UInt8 = new NativeType(0x04);
public static readonly NativeType Int16 = new NativeType(0x05);
public static readonly NativeType UInt16 = new NativeType(0x06);
public static readonly NativeType Int32 = new NativeType(0x07);
public static readonly NativeType UInt32 = new NativeType(0x08);
public static readonly NativeType Int64 = new NativeType(0x09);
public static readonly NativeType UInt64 = new NativeType(0x0A);
public static readonly NativeType Float32 = new NativeType(0x0B);
public static readonly NativeType Float64 = new NativeType(0x0C);
public static readonly NativeType Currency = new NativeType(0x0F);
public static readonly NativeType BStr = new NativeType(0x13);
public static readonly NativeType LPStr = new NativeType(0x14);
public static readonly NativeType LPWStr = new NativeType(0x15);
public static readonly NativeType LPTStr = new NativeType(0x16);
public static readonly NativeType FixedSysString = new NativeType(0x17);
public static readonly NativeType IUnknown = new NativeType(0x19);
public static readonly NativeType IDispatch = new NativeType(0x1A);
public static readonly NativeType Struct = new NativeType(0x1B);
public static readonly NativeType Interface = new NativeType(0x1C);
public static readonly NativeType Int = new NativeType(0x1F);
public static readonly NativeType UInt = new NativeType(0x20);
public static readonly NativeType ByValStr = new NativeType(0x22);
public static readonly NativeType AnsiBStr = new NativeType(0x23);
public static readonly NativeType TBstr = new NativeType(0x24);
public static readonly NativeType VariantBool = new NativeType(0x25);
public static readonly NativeType FuncPtr = new NativeType(0x26);
public static readonly NativeType AsAny = new NativeType(0x28);
public static readonly NativeType LPStruct = new NativeType(0x2b);
public static readonly NativeType Error = new NativeType(0x2d);
protected byte typeIndex;
internal NativeType(byte tyIx) { typeIndex = tyIx; }
internal byte GetTypeIndex() { return typeIndex; }
internal virtual byte[] ToBlob()
{
byte[] bytes = new byte[1];
bytes[0] = GetTypeIndex();
return bytes;
}
}
public class FixedSysString : NativeType {
uint size;
public FixedSysString (uint size) : base (NativeType.FixedSysString.GetTypeIndex ())
{
this.size = size;
}
internal override byte [] ToBlob ()
{
MemoryStream str = new MemoryStream ();
str.WriteByte (GetTypeIndex ());
MetaData.CompressNum (size, str);
return str.ToArray ();
}
}
public class NativeArray : NativeType {
NativeType elemType;
int numElem = -1, parNum = -1, elemMult = -1;
public NativeArray(NativeType elemType) : this (elemType, -1, -1, -1)
{
this.elemType = elemType;
}
/* public NativeArray(NativeType elemType, int len) : base(0x2A) {
this.elemType = elemType;
this.len = len;
}
*/
public NativeArray(NativeType elemType, int numElem, int parNumForLen, int elemMult) : base(0x2A)
{
this.elemType = elemType;
this.numElem = numElem;
parNum = parNumForLen;
this.elemMult = elemMult;
}
public NativeArray(NativeType elemType, int numElem, int parNumForLen)
: this (elemType, numElem, parNumForLen, -1)
{
}
internal override byte[] ToBlob()
{
MemoryStream str = new MemoryStream();
str.WriteByte(GetTypeIndex());
if (elemType == null) str.WriteByte(0x50); // no info (MAX)
else str.WriteByte(elemType.GetTypeIndex());
/* see : mono/metadata/metadata.c:mono_metadata_parse_marshal_spec
* LAMESPEC: Older spec versions say elemMult comes before
* len. Newer spec versions don't talk about elemMult at
* all, but csc still emits it, and it is used to distinguish
* between parNum being 0, and parNum being omitted.
*/
if (parNum == -1)
// <native_type> []
return str.ToArray ();
MetaData.CompressNum((uint) parNum,str);
if (numElem != -1) {
MetaData.CompressNum ((uint) numElem, str);
if (elemMult != -1)
// <native_type> [ int32 ]
MetaData.CompressNum((uint) elemMult,str);
//else <native_type> [ int32 + int32 ]
} else if (elemMult != -1) {
// When can this occur ?
MetaData.CompressNum (0, str);
MetaData.CompressNum((uint) elemMult,str);
}
//else <native_type> [ + int32 ]
return str.ToArray();
}
}
public class SafeArray : NativeType {
SafeArrayType elemType;
bool hasElemType;
public SafeArray() : base(0x1D)
{
}
public SafeArray(SafeArrayType elemType) : base(0x1D)
{
this.elemType = elemType;
hasElemType = true;
}
internal override byte[] ToBlob()
{
byte[] bytes = new byte[hasElemType ? 2 : 1];
bytes[0] = GetTypeIndex();
if (hasElemType)
bytes[1] = (byte)elemType;
return bytes;
}
}
public class FixedArray : NativeType {
uint numElem;
//public FixedArray(NativeType elemType, int numElems) : base(0x1E) {
public FixedArray(int numElems) : base(0x1E)
{
//this.elemType = elemType;
numElem = (uint)numElems;
}
internal override byte[] ToBlob()
{
MemoryStream str = new MemoryStream();
str.WriteByte(GetTypeIndex());
MetaData.CompressNum(numElem,str);
/* FIXME:
fixed array [5] lpstr [2]
This format is not supported by ilasm 1.1.4322.2032,
but is supported by 2.0.5125..
ilasm 1.1 only supports "fixed array [5]"
if (elemType == null) str.WriteByte(0x50); // no info (MAX)
else str.WriteByte(elemType.GetTypeIndex());*/
return str.ToArray();
}
}
public class CustomMarshaller : NativeType {
string typeName;
string marshallerName;
string cookie;
public CustomMarshaller(string typeNameOrGUID, string marshallerName,
string optCookie) : base(0x2C)
{
typeName = typeNameOrGUID;
this.marshallerName = marshallerName;
cookie = optCookie;
}
public CustomMarshaller(string marshallerName, string optCookie)
:this (null, marshallerName, optCookie)
{
}
internal override byte[] ToBlob()
{
MemoryStream str = new MemoryStream();
BinaryWriter bw = new BinaryWriter(str,new UTF8Encoding());
bw.Write(GetTypeIndex());
//Native type name & unmanaged type - unused
//See mono/metadata/metadata.c : mono_metadata_parse_marshal_spec
bw.Write ((byte) 0); // Native Type name, unused
bw.Write ((byte) 0); // Unmanaged type, unused
if (marshallerName != null) {
MetaData.CompressNum ((uint)marshallerName.Length, str);
bw.Write(marshallerName.ToCharArray());
} else {
bw.Write ((byte) 0);
}
if (cookie != null) {
MetaData.CompressNum ((uint)cookie.Length, str);
bw.Write(cookie.ToCharArray());
} else {
bw.Write ((byte) 0);
}
bw.Flush();
return str.ToArray();
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for the Primitive types defined in IL
/// </summary>
public class PrimitiveType : Type {
private string name;
private int systemTypeIndex;
public static int NumSystemTypes = 18;
public static readonly PrimitiveType Void = new PrimitiveType(0x01,"Void",0);
public static readonly PrimitiveType Boolean = new PrimitiveType(0x02,"Boolean",1);
public static readonly PrimitiveType Char = new PrimitiveType(0x03,"Char",2);
public static readonly PrimitiveType Int8 = new PrimitiveType(0x04,"SByte",3);
public static readonly PrimitiveType UInt8 = new PrimitiveType(0x05,"Byte",4);
public static readonly PrimitiveType Int16 = new PrimitiveType(0x06,"Int16",5);
public static readonly PrimitiveType UInt16 = new PrimitiveType(0x07,"UInt16",6);
public static readonly PrimitiveType Int32 = new PrimitiveType(0x08,"Int32",7);
public static readonly PrimitiveType UInt32 = new PrimitiveType(0x09,"UInt32",8);
public static readonly PrimitiveType Int64 = new PrimitiveType(0x0A,"Int64",9);
public static readonly PrimitiveType UInt64 = new PrimitiveType(0x0B,"UInt64",10);
public static readonly PrimitiveType Float32 = new PrimitiveType(0x0C,"Single",11);
public static readonly PrimitiveType Float64 = new PrimitiveType(0x0D,"Double",12);
public static readonly PrimitiveType String = new PrimitiveType(0x0E,"String",13);
internal static readonly PrimitiveType Class = new PrimitiveType(0x12);
internal static readonly PrimitiveType Var = new PrimitiveType(0x13);
internal static readonly PrimitiveType GenericInst = new PrimitiveType(0x15);
public static readonly PrimitiveType TypedRef = new PrimitiveType(0x16,"TypedReference",14);
public static readonly PrimitiveType IntPtr = new PrimitiveType(0x18,"IntPtr",15);
public static readonly PrimitiveType UIntPtr = new PrimitiveType(0x19,"UIntPtr",16);
public static readonly PrimitiveType Object = new PrimitiveType(0x1C,"Object",17);
internal static readonly PrimitiveType ClassType = new PrimitiveType(0x50);
internal static readonly PrimitiveType SZArray = new PrimitiveType(0x1D);
internal static readonly PrimitiveType MVar = new PrimitiveType(0x1E);
internal static readonly PrimitiveType ValueType = new PrimitiveType(0x11, "ValueType", 18);
public static readonly PrimitiveType NativeInt = IntPtr;
public static readonly PrimitiveType NativeUInt = UIntPtr;
internal PrimitiveType(byte typeIx) : base(typeIx) { }
internal PrimitiveType(byte typeIx, string name, int STIx) : base(typeIx)
{
this.name = name;
this.systemTypeIndex = STIx;
}
internal string GetName() { return name; }
internal int GetSystemTypeIx() { return systemTypeIndex; }
internal sealed override void TypeSig(MemoryStream str)
{
str.WriteByte(typeIndex);
}
internal override MetaDataElement GetTypeSpec(MetaData md)
{
TypeSpec tS = md.GetPrimitiveTypeSpec(systemTypeIndex);
if (tS == null) {
tS = new TypeSpec(this,md);
md.SetPrimitiveTypeSpec(systemTypeIndex,tS);
md.AddToTable(MDTable.TypeSpec,tS);
}
return tS;
}
}
public class PrimitiveTypeRef : Type
{
PrimitiveType type;
MetaData metaData;
internal PrimitiveTypeRef(PrimitiveType type, MetaData md)
: base (0)
{
this.type = type;
this.metaData = md;
}
internal uint TypeDefOrRefToken()
{
uint cIx = type.GetTypeSpec (metaData).Row;
cIx = (cIx << 2) | 0x2;
return cIx;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for an pointer (type * or type &)
/// </summary>
public abstract class PtrType : Type {
Type baseType;
internal PtrType(Type bType, byte typeIx) : base(typeIx)
{
baseType = bType;
tabIx = MDTable.TypeSpec;
}
internal sealed override void TypeSig(MemoryStream str)
{
str.WriteByte(typeIndex);
baseType.TypeSig(str);
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a managed pointer (type & or byref)
/// </summary>
public class ManagedPointer : PtrType {
/// <summary>
/// Create new managed pointer to baseType
/// </summary>
/// <param name="bType">the base type of the pointer</param>
public ManagedPointer(Type baseType) : base(baseType,0x10) { }
}
/**************************************************************************/
/// <summary>
/// Descriptor for an unmanaged pointer (type *)
/// </summary>
public class UnmanagedPointer : PtrType {
/// <summary>
/// Create a new unmanaged pointer to baseType
/// </summary>
/// <param name="baseType">the base type of the pointer</param>
public UnmanagedPointer(Type baseType) : base(baseType, 0x0F) { }
}
/**************************************************************************/
public interface IExternRef {
ClassRef AddClass(string nsName, string name);
ClassRef AddValueClass(string nsName, string name);
}
/// <summary>
/// A reference to an external assembly (.assembly extern)
/// </summary>
public class AssemblyRef : ResolutionScope, IExternRef {
private ushort major, minor, build, revision;
uint flags, keyIx, hashIx, cultIx;
bool hasVersion = false, isKeyToken = false;
byte[] keyBytes;
string culture;
internal AssemblyRef(MetaData md, string name) : base(name,md)
{
tabIx = MDTable.AssemblyRef;
}
public void AddAssemblyAttr (AssemAttr aa)
{
flags |= (uint)aa;
}
/// <summary>
/// Add version information about this external assembly
/// </summary>
/// <param name="majVer">Major Version</param>
/// <param name="minVer">Minor Version</param>
/// <param name="bldNo">Build Number</param>
/// <param name="revNo">Revision Number</param>
public void AddVersionInfo(int majVer, int minVer, int bldNo, int revNo)
{
major = (ushort)majVer;
minor = (ushort)minVer;
build = (ushort)bldNo;
revision = (ushort)revNo;
hasVersion = true;
}
/// <summary>
/// Add the hash value for this external assembly
/// </summary>
/// <param name="hash">bytes of the hash value</param>
public void AddHash(byte[] hash)
{
hashIx = metaData.AddToBlobHeap(hash);
}
/// <summary>
/// Set the culture for this external assembly
/// </summary>
/// <param name="cult">the culture string</param>
public void AddCulture(string cult)
{
cultIx = metaData.AddToStringsHeap(cult);
culture = cult;
}
/// <summary>
/// Add the full public key for this external assembly
/// </summary>
/// <param name="key">bytes of the public key</param>
public void AddKey(byte[] key)
{
flags |= 0x0001; // full public key
keyBytes = key;
keyIx = metaData.AddToBlobHeap(key);
}
/// <summary>
/// Add the public key token (low 8 bytes of the public key)
/// </summary>
/// <param name="key">low 8 bytes of public key</param>
public void AddKeyToken(byte[] key)
{
keyIx = metaData.AddToBlobHeap(key);
keyBytes = key;
isKeyToken = true;
}
/// <summary>
/// Add a class to this external assembly
/// </summary>
/// <param name="nsName">name space name</param>
/// <param name="name">class name</param>
/// <returns></returns>
public virtual ClassRef AddClass(string nsName, string name)
{
ClassRef aClass = new ClassRef(nsName,name,metaData);
metaData.AddToTable(MDTable.TypeRef,aClass);
aClass.SetParent(this);
return aClass;
}
/// <summary>
/// Add a value class to this external assembly
/// </summary>
/// <param name="nsName">name space name</param>
/// <param name="name">class name</param>
/// <returns></returns>
public virtual ClassRef AddValueClass(string nsName, string name)
{
ClassRef aClass = new ClassRef(nsName,name,metaData);
metaData.AddToTable(MDTable.TypeRef,aClass);
aClass.SetParent(this);
aClass.MakeValueClass(ValueClass.ValueType);
return aClass;
}
internal string TypeName()
{
string result = name;
if (hasVersion)
result = result + ", Version=" + major + "." + minor + "." +
build + "." + revision;
if (keyBytes != null) {
string tokenStr = "=";
if (isKeyToken) tokenStr = "Token=";
result = result + ", PublicKey" + tokenStr;
for (int i=0; i < keyBytes.Length; i++) {
result = result + Hex.Byte(keyBytes[i]);
}
}
if (culture != null)
result = result + ", Culture=" + culture;
return result;
}
internal sealed override uint Size(MetaData md)
{
return 12 + 2 * md.StringsIndexSize() + 2 * md.BlobIndexSize();
}
internal sealed override void Write(FileImage output)
{
output.Write(major);
output.Write(minor);
output.Write(build);
output.Write(revision);
output.Write(flags);
output.BlobIndex(keyIx);
output.StringsIndex(nameIx);
output.StringsIndex(cultIx);
output.BlobIndex(hashIx);
}
internal sealed override uint GetCodedIx(CIx code)
{
switch (code) {
case (CIx.ResolutionScope) : return 2;
case (CIx.HasCustomAttr) : return 15;
case (CIx.Implementation) : return 1;
}
return 0;
}
}
/**************************************************************************/
/// <summary>
/// Descriptor for a class defined in System (mscorlib)
/// </summary>
internal class SystemClass : ClassRef {
PrimitiveType elemType;
internal SystemClass(PrimitiveType eType, AssemblyRef paren, MetaData md)
: base("System",eType.GetName(),md) {
elemType = eType;
parent = paren;
}
internal override sealed MetaDataElement GetTypeSpec(MetaData md)
{
if (typeSpec == null) typeSpec = (TypeSpec)elemType.GetTypeSpec(md);
return typeSpec;
}
internal sealed override void TypeSig(MemoryStream str)
{
str.WriteByte(elemType.GetTypeIndex());
}
}
/**************************************************************************/
/// <summary>
/// The assembly for mscorlib.
/// </summary>
public sealed class MSCorLib : AssemblyRef {
private static readonly int valueTypeIx = 18;
private readonly string systemName = "System";
private Class[] systemClasses = new Class[valueTypeIx+2];
private PrimitiveType[] systemTypes = new PrimitiveType[valueTypeIx];
private static int[] specialNames = {
PrimitiveType.Void.GetName().GetHashCode(),
PrimitiveType.Boolean.GetName().GetHashCode(),
PrimitiveType.Char.GetName().GetHashCode(),
PrimitiveType.Int8.GetName().GetHashCode(),
PrimitiveType.UInt8.GetName().GetHashCode(),
PrimitiveType.Int16.GetName().GetHashCode(),
PrimitiveType.UInt16.GetName().GetHashCode(),
PrimitiveType.Int32.GetName().GetHashCode(),
PrimitiveType.UInt32.GetName().GetHashCode(),
PrimitiveType.Int64.GetName().GetHashCode(),
PrimitiveType.UInt64.GetName().GetHashCode(),
PrimitiveType.Float32.GetName().GetHashCode(),
PrimitiveType.Float64.GetName().GetHashCode(),
PrimitiveType.String.GetName().GetHashCode(),
PrimitiveType.TypedRef.GetName().GetHashCode(),
PrimitiveType.IntPtr.GetName().GetHashCode(),
PrimitiveType.UIntPtr.GetName().GetHashCode(),
PrimitiveType.Object.GetName().GetHashCode(),
PrimitiveType.ValueType.GetName ().GetHashCode(),
"Enum".GetHashCode()
};
internal MSCorLib(MetaData md) : base(md,"mscorlib")
{
if (!PEFile.IsMSCorlib)
md.AddToTable(MDTable.AssemblyRef,this);
systemTypes[PrimitiveType.Void.GetSystemTypeIx()] = PrimitiveType.Void;
systemTypes[PrimitiveType.Boolean.GetSystemTypeIx()] = PrimitiveType.Boolean;
systemTypes[PrimitiveType.Char.GetSystemTypeIx()] = PrimitiveType.Char;
systemTypes[PrimitiveType.Int8.GetSystemTypeIx()] = PrimitiveType.Int8;
systemTypes[PrimitiveType.UInt8.GetSystemTypeIx()] = PrimitiveType.UInt8;
systemTypes[PrimitiveType.Int16.GetSystemTypeIx()] = PrimitiveType.Int16;
systemTypes[PrimitiveType.UInt16.GetSystemTypeIx()] = PrimitiveType.UInt16;
systemTypes[PrimitiveType.Int32.GetSystemTypeIx()] = PrimitiveType.Int32;
systemTypes[PrimitiveType.UInt32.GetSystemTypeIx()] = PrimitiveType.UInt32;
systemTypes[PrimitiveType.Int64.GetSystemTypeIx()] = PrimitiveType.Int64;
systemTypes[PrimitiveType.UInt64.GetSystemTypeIx()] = PrimitiveType.UInt64;
systemTypes[PrimitiveType.Float32.GetSystemTypeIx()] = PrimitiveType.Float32;
systemTypes[PrimitiveType.Float64.GetSystemTypeIx()] = PrimitiveType.Float64;
systemTypes[PrimitiveType.IntPtr.GetSystemTypeIx()] = PrimitiveType.IntPtr;
systemTypes[PrimitiveType.UIntPtr.GetSystemTypeIx()] = PrimitiveType.UIntPtr;
systemTypes[PrimitiveType.String.GetSystemTypeIx()] = PrimitiveType.String;
systemTypes[PrimitiveType.Object.GetSystemTypeIx()] = PrimitiveType.Object;
systemTypes[PrimitiveType.TypedRef.GetSystemTypeIx()] = PrimitiveType.TypedRef;
}
/// <summary>
/// Add a class to the mscorlib assembly
/// </summary>
/// <param name="nsName">name space name</param>
/// <param name="name">class name</param>
/// <returns></returns>
public override ClassRef AddClass(string nsName, string name)
{
/* This gets called by !mscorlib, for adding references INTO mscorlib, so
it should be returning ClassRef ..*/
Class aClass = GetSpecialClass(nsName,name);
if (aClass == null) {
aClass = new ClassRef(nsName,name,metaData);
metaData.AddToTable(MDTable.TypeRef,aClass);
if (aClass is ClassRef)
((ClassRef) aClass).SetParent(this);
}
//FIXME: Check for !ClassRef here?
return (ClassRef) aClass;
}
private Class GetSpecialClass(string nsName,string name)
{
if (nsName.CompareTo(systemName) != 0) return null;
int hash = name.GetHashCode();
for (int i=0; i < specialNames.Length; i++) {
if (hash != specialNames[i])
continue;
if (systemClasses[i] == null) {
if (i < valueTypeIx) {
systemClasses[i] = new SystemClass(systemTypes[i],this,metaData);
if ((systemTypes[i] != PrimitiveType.Object) &&
(systemTypes[i] != PrimitiveType.String)) {
systemClasses[i].MakeValueClass(ValueClass.ValueType);
}
} else {
systemClasses[i] = new ClassRef(nsName,name,metaData);
((ClassRef) systemClasses[i]).SetParent(this);
if (!ClassDef.IsValueType (nsName, name) && !ClassDef.IsEnum (nsName, name))
systemClasses[i].MakeValueClass(ValueClass.ValueType);
}
metaData.AddToTable(MDTable.TypeRef,systemClasses[i]);
}
return systemClasses[i];
}
return null;
}
internal void SetSpecialSystemClass (string nsName, string name, Class aClass)
{
if (nsName != systemName) return;
int hash = name.GetHashCode ();
for (int i = 0; i < specialNames.Length; i++) {
if (hash != specialNames [i])
continue;
if (systemClasses [i] == null) {
systemClasses [i] = aClass;
}
}
}
internal Class GetSpecialSystemClass(PrimitiveType pType)
{
int ix = pType.GetSystemTypeIx();
if (systemClasses[ix] == null && !PEFile.IsMSCorlib) {
systemClasses[ix] = new SystemClass(pType,this,metaData);
metaData.AddToTable(MDTable.TypeRef,systemClasses[ix]);
}
return systemClasses[ix];
}
private ClassRef GetValueClass(string name, int hash)
{
/* Called by MSCorLib.AddValueClass, which is called by
!mscorlib, for adding ref to value class INTO mscorlib,
so this should be classref */
int ix = valueTypeIx;
if (hash != specialNames[valueTypeIx]) ix++;
if (systemClasses[ix] == null) {
systemClasses[ix] = new ClassRef(systemName,name,metaData);
((ClassRef) systemClasses[ix]).SetParent(this);
((ClassRef) systemClasses[ix]).MakeValueClass(ValueClass.ValueType);
metaData.AddToTable(MDTable.TypeRef,systemClasses[ix]);
}
return (ClassRef) systemClasses[ix];
}
internal Class ValueType()
{
if (systemClasses[valueTypeIx] == null && !PEFile.IsMSCorlib) {
ClassRef valType = new ClassRef("System","ValueType",metaData);
valType.SetParent(this);
valType.MakeValueClass(ValueClass.ValueType);
metaData.AddToTable(MDTable.TypeRef,valType);
systemClasses[valueTypeIx] = valType;
}
return systemClasses[valueTypeIx];
}
internal Class EnumType()
{
/* Called by both mscorlib & !mscorlib, so can be
either ClassRef or ClassDef */
//systemClasses [ valueTypeIx + 1] -> System.Enum
if (systemClasses[valueTypeIx + 1] == null && !PEFile.IsMSCorlib) {
ClassRef valType = new ClassRef("System","Enum",metaData);
valType.SetParent(this);
valType.MakeValueClass(ValueClass.Enum);
metaData.AddToTable(MDTable.TypeRef,valType);
systemClasses[valueTypeIx + 1] = valType;
}
return systemClasses[valueTypeIx + 1];
}
/// <summary>
/// Add a value class to this external assembly
/// </summary>
/// <param name="nsName">name space name</param>
/// <param name="name">class name</param>
/// <returns></returns>
public override ClassRef AddValueClass(string nsName, string name)
{
if (nsName.CompareTo(systemName) == 0) {
int hash = name.GetHashCode();
if ((hash == specialNames[valueTypeIx]) ||
(hash == specialNames[valueTypeIx+1])) {
return GetValueClass(name,hash);
}
}
ClassRef aClass = new ClassRef(nsName,name,metaData);
metaData.AddToTable(MDTable.TypeRef,aClass);
aClass.SetParent(this);
aClass.MakeValueClass(ValueClass.ValueType);
return aClass;
}
}
/**************************************************************************/
/// <summary>
/// MetaData
/// Root (20 bytes + UTF-8 Version String + quad align padding)
/// StreamHeaders (8 bytes + null terminated name string + quad align padding)
/// Streams
/// #~ (always present - holds metadata tables)
/// #Strings (always present - holds identifier strings)
/// #US (Userstring heap)
/// #Blob (signature blobs)
/// #GUID (guids for assemblies or Modules)
/// </summary>
public class MetaData {
internal static readonly int[] CIxShiftMap = {2,2,5,1,2,3,1,1,1,2,3,2,1};
private static readonly byte StringsHeapMask = 0x1;
private static readonly byte GUIDHeapMask = 0x2;
private static readonly byte BlobHeapMask = 0x4;
private static readonly uint MetaDataSignature = 0x424A5342;
private static readonly uint maxSmlIxSize = 0xFFFF;
private static readonly uint max1BitSmlIx = 0x7FFF;
private static readonly uint max2BitSmlIx = 0x3FFF;
private static readonly uint max3BitSmlIx = 0x1FFF;
private static readonly uint max5BitSmlIx = 0x7FF;
// NOTE: version and stream name strings MUST always be quad padded
private static readonly string version = "v4.0.30319\0\0";
private static readonly char[] tildeName = {'#','~','\0','\0'};
private static readonly char[] stringsName = {'#','S','t','r','i','n','g','s','\0','\0','\0','\0'};
private static readonly char[] usName = {'#','U','S','\0'};
private static readonly char[] guidName = {'#','G','U','I','D','\0','\0','\0'};
private static readonly char[] blobName = {'#','B','l','o','b','\0','\0','\0'};
private static readonly uint MetaDataHeaderSize = 20 + (uint)version.Length;
private static readonly uint TildeHeaderSize = 24;
private static readonly uint StreamHeaderSize = 8;
private static readonly uint numMetaDataTables = (int)MDTable.GenericParamConstraint + 1;
MetaDataStream strings, us, guid, blob;
MetaDataStream[] streams = new MetaDataStream[5];
uint numStreams = 5;
uint tildeTide = 0, tildePadding = 0, tildeStart = 0;
uint numTables = 0, resourcesSize = 0;
ArrayList[] metaDataTables = new ArrayList[numMetaDataTables];
ArrayList byteCodes = new ArrayList();
uint codeSize = 0, codeStart, byteCodePadding = 0, metaDataSize = 0;
ulong valid = 0, /*sorted = 0x000002003301FA00;*/ sorted = 0;
bool[] largeIx = new bool[numMetaDataTables];
bool[] lgeCIx = new bool[(int)CIx.MaxCIx];
bool largeStrings = false, largeUS = false, largeGUID = false, largeBlob = false;
private FileImage file;
private byte heapSizes = 0;
MetaDataElement entryPoint;
BinaryWriter output;
public MSCorLib mscorlib;
private TypeSpec[] systemTypeSpecs = new TypeSpec[PrimitiveType.NumSystemTypes];
long mdStart;
private ArrayList cattr_list;
private ArrayList declsec_list;
ArrayList resources;
internal MetaData(FileImage file)
{
// tilde = new MetaDataStream(tildeName,false,0);
this.file = file;
strings = new MetaDataStream(stringsName,new UTF8Encoding(),true);
us = new MetaDataStream(usName,new UnicodeEncoding(),true);
guid = new MetaDataStream(guidName,false);
blob = new MetaDataStream(blobName,true);
streams[1] = strings;
streams[2] = us;
streams[3] = guid;
streams[4] = blob;
for (int i=0; i < numMetaDataTables; i++) {
largeIx[i] = false;
}
for (int i=0; i < lgeCIx.Length; i++) {
lgeCIx[i] = false;
}
mscorlib = new MSCorLib(this);
}
internal TypeSpec GetPrimitiveTypeSpec(int ix)
{
return systemTypeSpecs[ix];
}
internal void SetPrimitiveTypeSpec(int ix, TypeSpec typeSpec)
{
systemTypeSpecs[ix] = typeSpec;
}
internal uint Size()
{
return metaDataSize;
}
private void CalcHeapSizes ()
{
if (strings.LargeIx()) {
largeStrings = true;
heapSizes |= StringsHeapMask;
}
if (guid.LargeIx()) {
largeGUID = true;
heapSizes |= GUIDHeapMask;
}
if (blob.LargeIx()) {
largeBlob = true;
heapSizes |= BlobHeapMask;
}
largeUS = us.LargeIx();
}
internal void StreamSize(byte mask)
{
heapSizes |= mask;
}
internal uint AddToUSHeap(string str)
{
if (str == null) return 0;
return us.Add(str,true);
}
internal uint AddToUSHeap(byte[] str)
{
if (str == null) return 0;
return us.Add (str, true);
}
internal uint AddToStringsHeap(string str)
{
if ((str == null) || (str.CompareTo("") == 0)) return 0;
return strings.Add(str,false);
}
internal uint AddToGUIDHeap(Guid guidNum)
{
return guid.Add(guidNum, false);
}
internal uint AddToBlobHeap(byte[] blobBytes)
{
if (blobBytes == null) return 0;
return blob.Add(blobBytes, true);
}
internal uint AddToBlobHeap(byte val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(sbyte val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(ushort val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(short val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(uint val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(int val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(ulong val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(long val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(float val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(double val)
{
return blob.Add(val, true);
}
internal uint AddToBlobHeap(string val)
{
return blob.Add(val,true);
}
internal void AddCustomAttribute (CustomAttribute cattr)
{
if (cattr_list == null)
cattr_list = new ArrayList ();
cattr_list.Add (cattr);
}
internal void AddDeclSecurity (BaseDeclSecurity decl_sec)
{
if (declsec_list == null)
declsec_list = new ArrayList ();
declsec_list.Add (decl_sec);
}
private ArrayList GetTable(MDTable tableIx)
{
int tabIx = (int)tableIx;
if (metaDataTables[tabIx] == null) {
metaDataTables[tabIx] = new ArrayList();
valid |= ((ulong)0x1 << tabIx);
// Console.WriteLine("after creating table " + tableIx + "(" + tabIx + ") valid = " + valid);
numTables++;
}
return metaDataTables[tabIx];
}
internal void AddToTable(MDTable tableIx, MetaDataElement elem)
{
if (elem.Row > 0) {
// Console.Out.WriteLine("ERROR - element already in table " + tableIx);
return;
}
// updates Row field of the element
// Console.WriteLine("Adding element to table " + (uint)tableIx);
ArrayList table = GetTable(tableIx);
elem.Row = (uint)table.Count + 1;
table.Add(elem);
}
internal uint TableIndex(MDTable tableIx)
{
if (metaDataTables[(int)tableIx] == null) return 1;
return (uint)metaDataTables[(int)tableIx].Count+1;
}
internal uint AddCode(CILInstructions byteCode)
{
byteCodes.Add(byteCode);
uint offset = codeSize + codeStart;
codeSize += byteCode.GetCodeSize();
return offset;
}
internal void SetEntryPoint(MetaDataElement ep)
{
entryPoint = ep;
}
internal uint AddResource(byte[] resBytes)
{
if (resources == null) resources = new ArrayList ();
resources.Add (resBytes);
uint offset = resourcesSize;
resourcesSize += (uint)resBytes.Length + 4;
return offset;
}
internal void AddData(DataConstant cVal)
{
file.AddInitData(cVal);
}
internal static void CompressNum(uint val, MemoryStream sig)
{
if (val <= 0x7F) {
sig.WriteByte((byte)val);
} else if (val <= 0x3FFF) {
byte b1 = (byte)((val >> 8) | 0x80);
byte b2 = (byte)(val & FileImage.iByteMask[0]);
sig.WriteByte(b1);
sig.WriteByte(b2);
} else {
byte b1 = (byte)((val >> 24) | 0xC0);
byte b2 = (byte)((val & FileImage.iByteMask[2]) >> 16);
byte b3 = (byte)((val & FileImage.iByteMask[1]) >> 8);;
byte b4 = (byte)(val & FileImage.iByteMask[0]);
sig.WriteByte(b1);
sig.WriteByte(b2);
sig.WriteByte(b3);
sig.WriteByte(b4);
}
}
internal uint CodeSize()
{
return codeSize + byteCodePadding;
}
internal uint GetResourcesSize()
{
return resourcesSize;
}
internal uint StringsIndexSize()
{
if (largeStrings) return 4;
return 2;
}
internal uint GUIDIndexSize()
{
if (largeGUID) return 4;
return 2;
}
internal uint USIndexSize()
{
if (largeUS) return 4;
return 2;
}
internal uint BlobIndexSize()
{
if (largeBlob) return 4;
return 2;
}
internal uint CodedIndexSize(CIx code)
{
if (lgeCIx[(uint)code]) return 4;
return 2;
}
internal uint TableIndexSize(MDTable tabIx)
{
if (largeIx[(uint)tabIx]) return 4;
return 2;
}
private void SetIndexSizes()
{
for (int i=0; i < numMetaDataTables; i++) {
if (metaDataTables[i] == null)
continue;
uint count = (uint)metaDataTables[i].Count;
if (count > maxSmlIxSize)
largeIx[i] = true;
MDTable tabIx = (MDTable)i;
if (count > max5BitSmlIx) {
lgeCIx[(int)CIx.HasCustomAttr] = true;
}
if (count > max3BitSmlIx) {
if ((tabIx == MDTable.TypeRef) || (tabIx == MDTable.ModuleRef) || (tabIx == MDTable.Method) || (tabIx == MDTable.TypeSpec) || (tabIx == MDTable.Field))
lgeCIx[(int)CIx.CustomAttributeType] = true;
if ((tabIx == MDTable.Method) || (tabIx == MDTable.MemberRef))
lgeCIx[(int)CIx.MemberRefParent] = true;
}
if (count > max2BitSmlIx) {
if ((tabIx == MDTable.Field) || (tabIx == MDTable.Param) || (tabIx == MDTable.Property))
lgeCIx[(int)CIx.HasConst] = true;
if ((tabIx == MDTable.TypeDef) || (tabIx == MDTable.TypeRef) || (tabIx == MDTable.TypeSpec))
lgeCIx[(int)CIx.TypeDefOrRef] = true;
if ((tabIx == MDTable.TypeDef) || (tabIx == MDTable.Method) || (tabIx == MDTable.Assembly))
lgeCIx[(int)CIx.HasDeclSecurity] = true;
if ((tabIx == MDTable.File) || (tabIx == MDTable.AssemblyRef) || (tabIx == MDTable.ExportedType))
lgeCIx[(int)CIx.Implementation] = true;
if ((tabIx == MDTable.Module) || (tabIx == MDTable.ModuleRef) || (tabIx == MDTable.AssemblyRef) || (tabIx == MDTable.TypeRef))
lgeCIx[(int)CIx.ResolutionScope] = true;
}
if (count > max1BitSmlIx) {
if ((tabIx == MDTable.Field) || (tabIx == MDTable.Param))
lgeCIx[(int)CIx.HasFieldMarshal] = true;
if ((tabIx == MDTable.Event) || (tabIx == MDTable.Property))
lgeCIx[(int)CIx.HasSemantics] = true;
if ((tabIx == MDTable.Method) || (tabIx == MDTable.MemberRef))
lgeCIx[(int)CIx.MethodDefOrRef] = true;
if ((tabIx == MDTable.Field) || (tabIx == MDTable.Method))
lgeCIx[(int)CIx.MemberForwarded] = true;
if ((tabIx == MDTable.TypeDef) || (tabIx == MDTable.Method))
lgeCIx[(int)CIx.TypeOrMethodDef] = true;
}
}
}
private void SetStreamOffsets()
{
uint sizeOfHeaders = StreamHeaderSize + (uint)tildeName.Length;
for (int i=1; i < numStreams; i++) {
sizeOfHeaders += streams[i].headerSize();
}
metaDataSize = MetaDataHeaderSize + sizeOfHeaders;
tildeStart = metaDataSize;
metaDataSize += tildeTide + tildePadding;
for (int i=1; i < numStreams; i++) {
streams[i].Start = metaDataSize;
metaDataSize += streams[i].Size();
streams[i].WriteDetails();
}
}
internal void CalcTildeStreamSize()
{
CalcHeapSizes ();
//tilde.SetIndexSizes(strings.LargeIx(),us.LargeIx(),guid.LargeIx(),blob.LargeIx());
tildeTide = TildeHeaderSize;
tildeTide += 4 * numTables;
//Console.WriteLine("Tilde header + sizes = " + tildeTide);
for (int i=0; i < numMetaDataTables; i++) {
if (metaDataTables[i] != null) {
ArrayList table = metaDataTables[i];
// Console.WriteLine("Meta data table " + i + " at offset " + tildeTide);
tildeTide += (uint)table.Count * ((MetaDataElement)table[0]).Size(this);
// Console.WriteLine("Metadata table " + i + " has size " + table.Count);
// Console.WriteLine("tildeTide = " + tildeTide);
}
}
if ((tildeTide % 4) != 0) tildePadding = 4 - (tildeTide % 4);
//Console.WriteLine("tildePadding = " + tildePadding);
}
internal void WriteTildeStream(FileImage output)
{
output.Seek(0,SeekOrigin.Current);
output.Write((uint)0); // Reserved
output.Write((byte)2); // MajorVersion
output.Write((byte)0); // MinorVersion
output.Write(heapSizes);
output.Write((byte)1); // Reserved
output.Write(valid);
output.Write(sorted);
for (int i=0; i < numMetaDataTables; i++) {
if (metaDataTables[i] != null) {
uint count = (uint)metaDataTables[i].Count;
output.Write(count);
}
}
output.Seek(0,SeekOrigin.Current);
// Console.WriteLine("Starting metaData tables at " + tabStart);
for (int i=0; i < numMetaDataTables; i++) {
if (metaDataTables[i] != null) {
// Console.WriteLine("Starting metaData table " + i + " at " + (output.Seek(0,SeekOrigin.Current) - startTilde));
ArrayList table = metaDataTables[i];
for (int j=0; j < table.Count; j++) {
((MetaDataElement)table[j]).Write(output);
}
}
}
// Console.WriteLine("Writing padding at " + output.Seek(0,SeekOrigin.Current));
for (int i=0; i < tildePadding; i++) output.Write((byte)0);
}
private void BuildTable(ArrayList table)
{
if (table == null) return;
for (int j=0; j < table.Count; j++) {
((MetaDataElement)table[j]).BuildTables(this);
}
}
private void SortTable (ArrayList mTable)
{
if (mTable == null) return;
mTable.Sort();
for (int i=0; i < mTable.Count; i++) {
((MetaDataElement)mTable[i]).Row = (uint)i+1;
}
}
internal void BuildMetaData(uint codeStartOffset)
{
codeStart = codeStartOffset;
BuildTable(metaDataTables[(int)MDTable.TypeDef]);
BuildTable(metaDataTables[(int)MDTable.TypeSpec]);
BuildTable(metaDataTables[(int)MDTable.MemberRef]);
BuildTable(metaDataTables[(int)MDTable.GenericParam]);
BuildTable(metaDataTables[(int)MDTable.MethodSpec]);
BuildTable(metaDataTables[(int)MDTable.GenericParamConstraint]);
BuildTable(metaDataTables[(int)MDTable.ManifestResource]);
if (cattr_list != null) {
foreach (CustomAttribute cattr in cattr_list)
cattr.BuildTables (this);
}
if (declsec_list != null) {
foreach (BaseDeclSecurity decl_sec in declsec_list)
decl_sec.BuildTables (this);
}
/* for (int i=0; i < metaDataTables.Length; i++) {
ArrayList table = metaDataTables[i];
if (table != null) {
for (int j=0; j < table.Count; j++) {
((MetaDataElement)table[j]).BuildTables(this);
}
}
}
*/
SetIndexSizes();
for (int i=1; i < numStreams; i++) {
streams[i].EndStream();
}
CalcTildeStreamSize();
SetStreamOffsets();
byteCodePadding = NumToAlign(codeSize,4);
if (entryPoint != null) file.SetEntryPoint(entryPoint.Token());
// Check ordering of specific tables
// Constant, CustomAttribute, FieldMarshal, DeclSecurity, MethodSemantics
// ImplMap, GenericParam
// Need to load GenericParamConstraint AFTER GenericParam table in correct order
// The tables:
// InterfaceImpl, ClassLayout, FieldLayout, MethodImpl, FieldRVA, NestedClass
// will _ALWAYS_ be in the correct order as embedded in BuildMDTables
SortTable(metaDataTables[(int)MDTable.Constant]);
SortTable(metaDataTables[(int)MDTable.FieldMarshal]);
SortTable(metaDataTables[(int)MDTable.DeclSecurity]);
SortTable(metaDataTables[(int)MDTable.MethodSemantics]);
SortTable(metaDataTables[(int)MDTable.ImplMap]);
if (metaDataTables[(int)MDTable.GenericParam] != null) {
SortTable(metaDataTables[(int)MDTable.GenericParam]);
// Now add GenericParamConstraints
/*for (int i=0; i < metaDataTables[(int)MDTable.GenericParam].Count; i++) {
((GenericParameter)metaDataTables[(int)MDTable.GenericParam][i]).AddConstraints(this);
}*/
}
SortTable(metaDataTables[(int)MDTable.GenericParamConstraint]);
SortTable(metaDataTables[(int)MDTable.InterfaceImpl]);
SortTable(metaDataTables[(int)MDTable.CustomAttribute]);
}
internal void WriteByteCodes(FileImage output)
{
for (int i=0; i < byteCodes.Count; i++) {
((CILInstructions)byteCodes[i]).Write(output);
}
for (int i=0; i < byteCodePadding; i++) {
output.Write((byte)0);
}
}
internal void WriteResources (FileImage output)
{
if (resources == null) return;
for (int i = 0; i < resources.Count; i ++) {
byte [] resBytes = (byte []) resources [i];
output.Write ((uint) resBytes.Length);
output.Write (resBytes);
}
}
internal void WriteMetaData(FileImage output)
{
this.output = output;
mdStart = output.Seek(0,SeekOrigin.Current);
// Console.WriteLine("Writing metaData at " + Hex.Long(mdStart));
output.Write(MetaDataSignature);
output.Write((short)1); // Major Version
output.Write((short)1); // Minor Version ECMA = 0, PEFiles = 1
output.Write(0); // Reserved
output.Write(version.Length);
output.Write(version.ToCharArray()); // version string is already zero padded
output.Write((short)0);
output.Write((ushort)numStreams);
// write tilde header
output.Write(tildeStart);
output.Write(tildeTide + tildePadding);
output.Write(tildeName);
for (int i=1; i < numStreams; i++) streams[i].WriteHeader(output);
// Console.WriteLine("Writing tilde stream at " + output.Seek(0,SeekOrigin.Current) + " = " + tildeStart);
WriteTildeStream(output);
for (int i=1; i < numStreams; i++) streams[i].Write(output);
// Console.WriteLine("Finished Writing metaData at " + output.Seek(0,SeekOrigin.Current));
}
internal bool LargeStringsIndex() { return strings.LargeIx(); }
internal bool LargeGUIDIndex() { return guid.LargeIx(); }
internal bool LargeUSIndex() { return us.LargeIx(); }
internal bool LargeBlobIndex() { return blob.LargeIx(); }
internal bool LargeIx(MDTable tabIx) { return largeIx[(uint)tabIx]; }
private uint NumToAlign(uint val, uint alignVal)
{
if ((val % alignVal) == 0) return 0;
return alignVal - (val % alignVal);
}
internal void WriteCodedIndex(CIx code, MetaDataElement elem, FileImage output)
{
uint ix = 0;
if (elem != null) {
ix = (elem.Row << CIxShiftMap[(uint)code]) | elem.GetCodedIx(code);
// Console.WriteLine("coded index = " + ix + " row = " + elem.Row);
//} else {
// Console.WriteLine("elem for coded index is null");
}
if (lgeCIx[(uint)code])
output.Write(ix);
else
output.Write((ushort)ix);
}
}
/**************************************************************************/
/// <summary>
/// Stream in the Meta Data (#Strings, #US, #Blob and #GUID)
/// </summary>
internal class MetaDataStream : BinaryWriter {
private static readonly uint StreamHeaderSize = 8;
private static uint maxSmlIxSize = 0xFFFF;
private uint start = 0;
uint size = 0, tide = 1;
bool largeIx = false;
uint sizeOfHeader;
char[] name;
Hashtable htable = new Hashtable();
Hashtable btable = new Hashtable (new ByteArrayHashCodeProvider (), new ByteArrayComparer ());
internal MetaDataStream(char[] name, bool addInitByte) : base(new MemoryStream())
{
if (addInitByte) { Write((byte)0); size = 1; }
this.name = name;
sizeOfHeader = StreamHeaderSize + (uint)name.Length;
}
internal MetaDataStream(char[] name, System.Text.Encoding enc, bool addInitByte) : base(new MemoryStream(),enc)
{
if (addInitByte) { Write((byte)0); size = 1; }
this.name = name;
sizeOfHeader = StreamHeaderSize + (uint)name.Length;
}
public uint Start {
get { return start; }
set { start = value; }
}
internal uint headerSize()
{
// Console.WriteLine(name + " stream has headersize of " + sizeOfHeader);
return sizeOfHeader;
}
internal void SetSize(uint siz)
{
size = siz;
}
internal uint Size()
{
return size;
}
internal bool LargeIx()
{
return largeIx;
}
internal void WriteDetails()
{
// Console.WriteLine(name + " - size = " + size);
}
internal uint Add(string str, bool prependSize)
{
Object val = htable[str];
uint index = 0;
if (val == null) {
index = size;
htable[str] = index;
char[] arr = str.ToCharArray();
if (prependSize) CompressNum((uint)arr.Length*2+1);
Write(arr);
Write((byte)0);
size = (uint)Seek(0,SeekOrigin.Current);
} else {
index = (uint)val;
}
return index;
}
internal uint Add (byte[] str, bool prependSize)
{
Object val = btable [str];
uint index = 0;
if (val == null) {
index = size;
btable [str] = index;
if (prependSize) CompressNum ((uint) str.Length);
Write (str);
size = (uint) Seek (0, SeekOrigin.Current);
} else {
index = (uint) val;
}
return index;
}
internal uint Add(Guid guid, bool prependSize)
{
byte [] b = guid.ToByteArray ();
if (prependSize) CompressNum ((uint) b.Length);
Write(guid.ToByteArray());
size =(uint)Seek(0,SeekOrigin.Current);
return tide++;
}
internal uint Add(byte[] blob)
{
uint ix = size;
CompressNum((uint)blob.Length);
Write(blob);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(byte val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (1);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(sbyte val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (1);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(ushort val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (2);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(short val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (2);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(uint val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (4);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(int val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (4);
Write (val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(ulong val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (8);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(long val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (8);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(float val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (4);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
internal uint Add(double val, bool prependSize)
{
uint ix = size;
if (prependSize) CompressNum (8);
Write(val);
size = (uint)Seek(0,SeekOrigin.Current);
return ix;
}
private void CompressNum(uint val)
{
if (val < 0x7F) {
Write((byte)val);
} else if (val < 0x3FFF) {
byte b1 = (byte)((val >> 8) | 0x80);
byte b2 = (byte)(val & FileImage.iByteMask[0]);
Write(b1);
Write(b2);
} else {
byte b1 = (byte)((val >> 24) | 0xC0);
byte b2 = (byte)((val & FileImage.iByteMask[2]) >> 16);
byte b3 = (byte)((val & FileImage.iByteMask[1]) >> 8);;
byte b4 = (byte)(val & FileImage.iByteMask[0]);
Write(b1);
Write(b2);
Write(b3);
Write(b4);
}
}
private void QuadAlign()
{
if ((size % 4) != 0) {
uint pad = 4 - (size % 4);
size += pad;
for (int i=0; i < pad; i++) {
Write((byte)0);
}
}
}
internal void EndStream()
{
QuadAlign();
if (size > maxSmlIxSize) {
largeIx = true;
}
}
internal void WriteHeader(BinaryWriter output)
{
output.Write(start);
output.Write(size);
output.Write(name);
}
internal virtual void Write(BinaryWriter output)
{
// Console.WriteLine("Writing " + name + " stream at " + output.Seek(0,SeekOrigin.Current) + " = " + start);
MemoryStream str = (MemoryStream)BaseStream;
output.Write(str.ToArray());
}
}
/**************************************************************************/
class ByteArrayComparer : IComparer {
public int Compare (object x, object y)
{
byte [] a = (byte []) x;
byte [] b = (byte []) y;
int len = a.Length;
if (b.Length != len)
return 1;
for (int i = 0; i < len; ++i)
if (a [i] != b [i])
return 1;
return 0;
}
}
class ByteArrayHashCodeProvider : IHashCodeProvider {
public int GetHashCode (Object key)
{
byte [] arr = (byte []) key;
int len = arr.Length;
int h = 0;
for (int i = 0; i < len; ++i)
h = (h << 5) - h + arr [i];
return h;
}
}
}
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