public static void SwapMethodBody(Type cls, int methodtoken, IntPtr rgIL, int methodSize, int flags)
{
if (methodSize <= 0 || methodSize >= 4128768)
{
throw new ArgumentException(Environment.GetResourceString("Argument_BadSizeForData"), "methodSize");
}
if (cls == null)
{
throw new ArgumentNullException("cls");
}
Module module = cls.Module;
ModuleBuilder moduleBuilder = module as ModuleBuilder;
InternalModuleBuilder internalModuleBuilder;
if (moduleBuilder != null)
{
internalModuleBuilder = moduleBuilder.InternalModule;
}
else
{
internalModuleBuilder = (module as InternalModuleBuilder);
}
if (internalModuleBuilder == null)
{
throw new NotSupportedException(Environment.GetResourceString("NotSupported_NotDynamicModule"));
}
RuntimeType runtimeType;
if (cls is TypeBuilder)
{
TypeBuilder typeBuilder = (TypeBuilder)cls;
if (!typeBuilder.IsCreated())
{
throw new NotSupportedException(Environment.GetResourceString("NotSupported_NotAllTypesAreBaked", new object[]
{
typeBuilder.Name
}));
}
runtimeType = typeBuilder.BakedRuntimeType;
}
else
{
runtimeType = (cls as RuntimeType);
}
if (runtimeType == null)
{
throw new ArgumentException(Environment.GetResourceString("Argument_MustBeRuntimeType"), "cls");
}
StackCrawlMark stackCrawlMark = StackCrawlMark.LookForMyCaller;
RuntimeAssembly runtimeAssembly = internalModuleBuilder.GetRuntimeAssembly();
object syncRoot = runtimeAssembly.SyncRoot;
lock (syncRoot)
{
MethodRental.SwapMethodBody(runtimeType.GetTypeHandleInternal(), methodtoken, rgIL, methodSize, flags, JitHelpers.GetStackCrawlMarkHandle(ref stackCrawlMark));
}
}
[MethodImplAttribute(MethodImplOptions.NoInlining)] // Methods containing StackCrawlMark local var has to be marked non-inlineable
public static void SwapMethodBody(
Type cls, // [in] class containing the method
int methodtoken, // [in] method token
IntPtr rgIL, // [in] pointer to bytes
int methodSize, // [in] the size of the new method body in bytes
int flags) // [in] flags
{
if (methodSize <= 0 || methodSize >= 0x3f0000)
throw new ArgumentException(Environment.GetResourceString("Argument_BadSizeForData"), "methodSize");
if (cls==null)
throw new ArgumentNullException("cls");
Contract.EndContractBlock();
Module module = cls.Module;
InternalModuleBuilder internalMB;
ModuleBuilder mb = module as ModuleBuilder;
if (mb != null)
internalMB = mb.InternalModule;
else
internalMB = module as InternalModuleBuilder;
// can only swap method body on dynamic module
// dynamic internal module type is always exactly InternalModuleBuilder, non-dynamic is always something different
if (internalMB == null)
throw new NotSupportedException(Environment.GetResourceString("NotSupported_NotDynamicModule"));
RuntimeType rType;
if (cls is TypeBuilder)
{
// If it is a TypeBuilder, make sure that TypeBuilder is already been baked.
TypeBuilder typeBuilder = (TypeBuilder) cls;
if (!typeBuilder.IsCreated())
throw new NotSupportedException(Environment.GetResourceString("NotSupported_NotAllTypesAreBaked", typeBuilder.Name));
// get the corresponding runtime type for the TypeBuilder.
rType = typeBuilder.BakedRuntimeType;
}
else
{
rType = cls as RuntimeType;
}
if (rType == null)
throw new ArgumentException(Environment.GetResourceString("Argument_MustBeRuntimeType"), "cls");
StackCrawlMark mark = StackCrawlMark.LookForMyCaller;
RuntimeAssembly rtAssembly = internalMB.GetRuntimeAssembly();
lock (rtAssembly.SyncRoot)
{
SwapMethodBody(rType.GetTypeHandleInternal(), methodtoken, rgIL, methodSize, flags, JitHelpers.GetStackCrawlMarkHandle(ref mark));
}
}
internal bool IsTypeCreated()
{
return(m_containingType != null && m_containingType.IsCreated());
}
