protected string FormatRuntimeMember(RuntimeMember member)
{
if (!showTokenValues.Checked)
return member.Name;
return "[" + TokenToString(member.Token) + "] " + member.Name;
}
/// <summary>
/// Initializes a new instance of the <see cref="MemberOperand"/> class.
/// </summary>
/// <param name="member">The member to reference.</param>
/// <param name="type">The type of data held in the operand.</param>
/// <param name="offset">The offset from the base register or absolute address to retrieve.</param>
public MemberOperand(RuntimeMember member, SigType type, IntPtr offset)
: base(type, null, offset)
{
if (member == null)
throw new ArgumentNullException(@"member");
this.member = member;
}
/// <summary>
/// Initializes a new instance of the <see cref="MemberOperand"/> class.
/// </summary>
/// <param name="method">The method to reference.</param>
/// <exception cref="System.ArgumentNullException"><paramref name="method"/> is null.</exception>
public MemberOperand(RuntimeMethod method)
: base(new SigType(CilElementType.I), null, IntPtr.Zero)
{
if (method == null)
throw new ArgumentNullException(@"method");
this.member = method;
}
/// <summary>
/// Initializes a new instance of <see cref="MemberOperand"/>.
/// </summary>
/// <param name="field">The runtime field to reference.</param>
/// <exception cref="System.ArgumentNullException"><paramref name="field"/> is null.</exception>
public MemberOperand(RuntimeField field)
: base(field.SignatureType, null, IntPtr.Zero)
{
if (field == null)
throw new ArgumentNullException(@"field");
this.member = field;
}
/// <summary>
/// Checks that <paramref name="member"/> is a member, which can be linked.
/// </summary>
/// <param name="member">The member to check.</param>
/// <returns>
/// True, if the member is valid for linking.
/// </returns>
protected bool IsValid(RuntimeMember member)
{
return (member is RuntimeMethod || (member is RuntimeField && FieldAttributes.Static == (FieldAttributes.Static & ((RuntimeField)member).Attributes)));
}
/// <summary>
/// Allocates the specified member.
/// </summary>
/// <param name="member">The member.</param>
/// <param name="section">The section.</param>
/// <param name="size">The size.</param>
/// <param name="alignment">The alignment.</param>
/// <returns></returns>
public virtual Stream Allocate(RuntimeMember member, SectionKind section, int size, int alignment)
{
return null;
}
/// <summary>
/// Issues a linker request for the given runtime method.
/// </summary>
/// <param name="method">The method the patched code belongs to.</param>
/// <param name="methodOffset">The offset inside the method where the patch is placed.</param>
/// <param name="linkType">The type of link required.</param>
/// <param name="methodRelativeBase">The base address, if a relative link is required.</param>
/// <param name="target">The method or static field to link against.</param>
/// <returns>
/// The return value is the preliminary address to place in the generated machine
/// code. On 32-bit systems, only the lower 32 bits are valid. The above are not used. An implementation of
/// IAssemblyLinker may not rely on 64-bits being stored in the memory defined by position.
/// </returns>
public virtual long Link(LinkType linkType, RuntimeMethod method, int methodOffset, int methodRelativeBase, RuntimeMember target)
{
return 0;
}
/// <summary>
/// Loads the interfaces.
/// </summary>
protected void LoadMemberReferences()
{
Token maxToken = GetMaxTokenValue(TableType.MemberRef);
foreach (Token token in new Token(TableType.MemberRef, 1).Upto(maxToken))
{
MemberRefRow row = metadataProvider.ReadMemberRefRow(token);
string name = GetString(row.NameStringIdx);
RuntimeType ownerType = null;
switch (row.Class.Table)
{
case TableType.TypeDef:
ownerType = types[row.Class.RID - 1];
break;
case TableType.TypeRef:
ownerType = typeRef[row.Class.RID - 1];
break;
case TableType.TypeSpec:
ownerType = typeSpecs[row.Class.RID - 1];
break;
default:
throw new NotSupportedException(String.Format(@"LoadMemberReferences() does not support token table {0}", row.Class.Table));
}
if (ownerType == null)
{
throw new InvalidOperationException(String.Format(@"Failed to retrieve owner type for Token {0:x} (Table {1})", row.Class, row.Class.Table));
}
Signature signature = GetMemberRefSignature(row.SignatureBlobIdx);
CilGenericType genericOwnerType = ownerType as CilGenericType;
RuntimeMember runtimeMember = null;
if (signature is FieldSignature)
{
foreach (RuntimeField field in ownerType.Fields)
{
if (field.Name == name)
{
runtimeMember = field;
break;
}
}
}
else
{
MethodSignature methodSignature = signature as MethodSignature;
Debug.Assert(signature is MethodSignature);
if ((genericOwnerType != null) && (genericOwnerType.GenericArguments.Length != 0))
{
methodSignature = new MethodSignature(methodSignature, genericOwnerType.GenericArguments);
}
foreach (RuntimeMethod method in ownerType.Methods)
{
if (method.Name == name)
{
if (method.Signature.Matches(methodSignature))
{
runtimeMember = method;
break;
}
}
}
// Special case: string.get_Chars is same as string.get_Item
if (runtimeMember == null && name == "get_Chars" && ownerType.FullName == "System.String")
{
name = "get_Item";
foreach (RuntimeMethod method in ownerType.Methods)
{
if (method.Name == name)
{
if (method.Signature.Matches(methodSignature))
{
runtimeMember = method;
break;
}
}
}
}
}
if (runtimeMember == null)
{
throw new InvalidOperationException(String.Format(@"Failed to locate field {0}.{1}", ownerType.FullName, name));
}
memberRef[token.RID - 1] = runtimeMember;
}
}
