path: root/src/inc/xclrdata.idl

//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
/*****************************************************************************
 **                                                                         **
 ** clrdata.idl - Common Language Runtime data access interfaces for         **
 **              clients needing to access runtime state from outside       **
 **              runtime, such as out-of-process debuggers.                 **
 **                                                                         **
 ** The access interface defines two different types of code running:       **
 ** The host is the user of the access interface.                           **
 ** The target is the target of the access.                                 **
 **                                                                         **
 ** The host and target can be have different instruction sets,             **
 ** pointer sizes, runtime versions and so on.                              **
 **                                                                         **
 *****************************************************************************/

import "clrdata.idl";

cpp_quote("#if 0")

typedef UINT32  mdToken;
typedef mdToken mdTypeDef;
typedef mdToken mdMethodDef;
typedef mdToken mdFieldDef;

typedef ULONG CorElementType;

#define EXCEPTION_MAXIMUM_PARAMETERS 15 // maximum number of exception parameters

// The following definition is pasted in from winnt.h, which doesn't
// import cleanly as a whole.
typedef struct _EXCEPTION_RECORD64 {
    DWORD    ExceptionCode;
    DWORD ExceptionFlags;
    DWORD64 ExceptionRecord;
    DWORD64 ExceptionAddress;
    DWORD NumberParameters;
    DWORD __unusedAlignment;
    DWORD64 ExceptionInformation[EXCEPTION_MAXIMUM_PARAMETERS];
} EXCEPTION_RECORD64, *PEXCEPTION_RECORD64;

cpp_quote("#endif")

/* ------------------------------------------------------------------------- *
 * Forward declarations.
 * ------------------------------------------------------------------------- */

/*
 * The following interfaces (with an "IX" prefix instead of the conventional
 * "I") are works in progress. They will change at least once before Whidbey
 * ships.
 */

#pragma warning(push)
#pragma warning(disable:28718)    //Unable to annotate as this is not a local interface

interface IXCLRDataProcess;
interface IXCLRDataAppDomain;
interface IXCLRDataAssembly;
interface IXCLRDataModule;
interface IXCLRDataModule2;

interface IXCLRDataTypeDefinition;
interface IXCLRDataTypeInstance;
interface IXCLRDataMethodDefinition;
interface IXCLRDataMethodInstance;

interface IXCLRDataTask;
interface IXCLRDataStackWalk;
interface IXCLRDataFrame;
interface IXCLRDataFrame2;

interface IXCLRDataExceptionState;
interface IXCLRDataExceptionNotification;

interface IXCLRDataValue;

interface IXCLRDataTarget3;

interface IXCLRDataDisplay;

#pragma warning(pop)

typedef struct
{
    CLRDATA_ADDRESS startAddress;
    CLRDATA_ADDRESS endAddress;
} CLRDATA_ADDRESS_RANGE;

/*
 * Many enumerators are based on an opaque state bundle.
 */
typedef ULONG64 CLRDATA_ENUM;

/*
 * Exception code used for notifications in this interface.
 */
cpp_quote("#define CLRDATA_NOTIFY_EXCEPTION 0xe0444143")

/*
 * General requests shared by two or more interfaces.
 */

typedef enum
{
    CLRDATA_REQUEST_REVISION = 0xe0000000,
} CLRDataGeneralRequest;

/*
 * The following three sets of flags share
 * many common definitions are so are
 * grouped into a block.
 */

typedef enum
{
    CLRDATA_TYPE_DEFAULT       = 0x00000000,

    // Identify particular kinds of types.  These flags
    // are shared between type, field and value.
    CLRDATA_TYPE_IS_PRIMITIVE  = 0x00000001,
    CLRDATA_TYPE_IS_VALUE_TYPE = 0x00000002,
    CLRDATA_TYPE_IS_STRING     = 0x00000004,
    CLRDATA_TYPE_IS_ARRAY      = 0x00000008,
    CLRDATA_TYPE_IS_REFERENCE  = 0x00000010,
    CLRDATA_TYPE_IS_POINTER    = 0x00000020,
    CLRDATA_TYPE_IS_ENUM       = 0x00000040,

    // Alias for all field kinds.
    CLRDATA_TYPE_ALL_KINDS     = 0x7f,
} CLRDataTypeFlag;

typedef enum
{
    CLRDATA_FIELD_DEFAULT         = 0x00000000,
    
    // Identify particular kinds of types.  These flags
    // are shared between type, field and value.
    CLRDATA_FIELD_IS_PRIMITIVE    = CLRDATA_TYPE_IS_PRIMITIVE,
    CLRDATA_FIELD_IS_VALUE_TYPE   = CLRDATA_TYPE_IS_VALUE_TYPE,
    CLRDATA_FIELD_IS_STRING       = CLRDATA_TYPE_IS_STRING,
    CLRDATA_FIELD_IS_ARRAY        = CLRDATA_TYPE_IS_ARRAY,
    CLRDATA_FIELD_IS_REFERENCE    = CLRDATA_TYPE_IS_REFERENCE,
    CLRDATA_FIELD_IS_POINTER      = CLRDATA_TYPE_IS_POINTER,
    CLRDATA_FIELD_IS_ENUM         = CLRDATA_TYPE_IS_ENUM,

    // Alias for all field kinds.
    CLRDATA_FIELD_ALL_KINDS       = CLRDATA_TYPE_ALL_KINDS,

    // Identify field properties.  These flags are
    // shared between field and value.
    CLRDATA_FIELD_IS_INHERITED    = 0x00000080,
    CLRDATA_FIELD_IS_LITERAL      = 0x00000100,

    // Identify field storage location.  These flags are
    // shared between field and value.
    CLRDATA_FIELD_FROM_INSTANCE   = 0x00000200,
    CLRDATA_FIELD_FROM_TASK_LOCAL = 0x00000400,
    CLRDATA_FIELD_FROM_STATIC     = 0x00000800,

    // Alias for all types of field locations.
    CLRDATA_FIELD_ALL_LOCATIONS   = 0x00000e00,
    // Alias for all fields from all locations.
    CLRDATA_FIELD_ALL_FIELDS      = 0x00000eff,
} CLRDataFieldFlag;

typedef enum
{
    CLRDATA_VALUE_DEFAULT         = 0x00000000,

    // Identify particular kinds of types.  These flags
    // are shared between type, field and value.
    CLRDATA_VALUE_IS_PRIMITIVE    = CLRDATA_TYPE_IS_PRIMITIVE,
    CLRDATA_VALUE_IS_VALUE_TYPE   = CLRDATA_TYPE_IS_VALUE_TYPE,
    CLRDATA_VALUE_IS_STRING       = CLRDATA_TYPE_IS_STRING,
    CLRDATA_VALUE_IS_ARRAY        = CLRDATA_TYPE_IS_ARRAY,
    CLRDATA_VALUE_IS_REFERENCE    = CLRDATA_TYPE_IS_REFERENCE,
    CLRDATA_VALUE_IS_POINTER      = CLRDATA_TYPE_IS_POINTER,
    CLRDATA_VALUE_IS_ENUM         = CLRDATA_TYPE_IS_ENUM,

    // Alias for all value kinds.
    CLRDATA_VALUE_ALL_KINDS       = CLRDATA_TYPE_ALL_KINDS,

    // Identify field properties.  These flags are
    // shared between field and value.
    CLRDATA_VALUE_IS_INHERITED    = CLRDATA_FIELD_IS_INHERITED,
    CLRDATA_VALUE_IS_LITERAL      = CLRDATA_FIELD_IS_LITERAL,

    // Identify field storage location.  These flags are
    // shared between field and value.
    CLRDATA_VALUE_FROM_INSTANCE   = CLRDATA_FIELD_FROM_INSTANCE,
    CLRDATA_VALUE_FROM_TASK_LOCAL = CLRDATA_FIELD_FROM_TASK_LOCAL,
    CLRDATA_VALUE_FROM_STATIC     = CLRDATA_FIELD_FROM_STATIC,

    // Alias for all types of field locations.
    CLRDATA_VALUE_ALL_LOCATIONS   = CLRDATA_FIELD_ALL_LOCATIONS,
    // Alias for all fields from all locations.
    CLRDATA_VALUE_ALL_FIELDS      = CLRDATA_FIELD_ALL_FIELDS,

    // Identify whether the value is a boxed object.
    CLRDATA_VALUE_IS_BOXED        = 0x00001000,
} CLRDataValueFlag;

[
    object,
    local,
    uuid(59d9b5e1-4a6f-4531-84c3-51d12da22fd4),
    pointer_default(unique)
]
interface IXCLRDataTarget3 : ICLRDataTarget2
{
    /*
     * Ask the target to recover metadata for
     * an image.  May not succeed.
     */
    HRESULT GetMetaData([in] LPCWSTR imagePath,
                        [in] ULONG32 imageTimestamp,
                        [in] ULONG32 imageSize,
                        [in] GUID* mvid,
                        [in] ULONG32 mdRva,
                        [in] ULONG32 flags,
                        [in] ULONG32 bufferSize,
                        [out, size_is(bufferSize), length_is(*dataSize)]
                        BYTE* buffer,
                        [out] ULONG32* dataSize);
};

/*
 * Flags used for *ByName methods.
 */
typedef enum
{
    CLRDATA_BYNAME_CASE_SENSITIVE   = 0x00000000,
    CLRDATA_BYNAME_CASE_INSENSITIVE = 0x00000001,
} CLRDataByNameFlag;

/*
 * Flags used in GetName methods.
 */
typedef enum
{
    CLRDATA_GETNAME_DEFAULT       = 0x00000000,
    CLRDATA_GETNAME_NO_NAMESPACES = 0x00000001,
    CLRDATA_GETNAME_NO_PARAMETERS = 0x00000002,
} CLRDataGetNameFlag;

typedef enum
{
    CLRDATA_PROCESS_DEFAULT = 0x00000000,
    CLRDATA_PROCESS_IN_GC   = 0x00000001,
} CLRDataProcessFlag;

typedef enum
{
    CLRDATA_ADDRESS_UNRECOGNIZED,
    CLRDATA_ADDRESS_MANAGED_METHOD,
    CLRDATA_ADDRESS_RUNTIME_MANAGED_CODE,
    CLRDATA_ADDRESS_RUNTIME_UNMANAGED_CODE,
    CLRDATA_ADDRESS_GC_DATA,
    CLRDATA_ADDRESS_RUNTIME_MANAGED_STUB,
    CLRDATA_ADDRESS_RUNTIME_UNMANAGED_STUB,
} CLRDataAddressType;

typedef enum
{
    CLRDATA_NOTIFY_ON_MODULE_LOAD           = 0x00000001,
    CLRDATA_NOTIFY_ON_MODULE_UNLOAD         = 0x00000002,
    CLRDATA_NOTIFY_ON_EXCEPTION             = 0x00000004,
    CLRDATA_NOTIFY_ON_EXCEPTION_CATCH_ENTER = 0x00000008,
} CLRDataOtherNotifyFlag;

/*
 * Data buffer and flags for follow-stub data.
 */

typedef struct
{
    ULONG64 Data[8];
} CLRDATA_FOLLOW_STUB_BUFFER;

typedef enum
{
    CLRDATA_FOLLOW_STUB_DEFAULT = 0x00000000,
} CLRDataFollowStubInFlag;

typedef enum
{
    CLRDATA_FOLLOW_STUB_INTERMEDIATE = 0x00000000,
    CLRDATA_FOLLOW_STUB_EXIT         = 0x00000001,
} CLRDataFollowStubOutFlag;

typedef enum
{
    CLRNATIVEIMAGE_PE_INFO          = 0x00000001,
    CLRNATIVEIMAGE_COR_INFO         = 0x00000002,
    CLRNATIVEIMAGE_FIXUP_TABLES     = 0x00000004,
    CLRNATIVEIMAGE_FIXUP_HISTOGRAM  = 0x00000008,
    CLRNATIVEIMAGE_MODULE           = 0x00000010,
    CLRNATIVEIMAGE_METHODS          = 0x00000020,
    CLRNATIVEIMAGE_DISASSEMBLE_CODE = 0x00000040,
    CLRNATIVEIMAGE_IL               = 0x00000080,
    CLRNATIVEIMAGE_METHODTABLES     = 0x00000100,
    CLRNATIVEIMAGE_NATIVE_INFO      = 0x00000200,
    CLRNATIVEIMAGE_MODULE_TABLES    = 0x00000400,
    CLRNATIVEIMAGE_FROZEN_SEGMENT   = 0x00000800,
    CLRNATIVEIMAGE_PE_FILE          = 0x00001000,
    CLRNATIVEIMAGE_GC_INFO          = 0x00002000,
    CLRNATIVEIMAGE_EECLASSES        = 0x00004000,
    CLRNATIVEIMAGE_NATIVE_TABLES    = 0x00008000,
    CLRNATIVEIMAGE_PRECODES         = 0x00010000,
    CLRNATIVEIMAGE_TYPEDESCS        = 0x00020000,
    CLRNATIVEIMAGE_VERBOSE_TYPES    = 0x00040000,
    CLRNATIVEIMAGE_METHODDESCS      = 0x00080000,
    CLRNATIVEIMAGE_METADATA         = 0x00100000,
    CLRNATIVEIMAGE_DISABLE_NAMES    = 0x00200000,
    CLRNATIVEIMAGE_DISABLE_REBASING = 0x00400000,
    CLRNATIVEIMAGE_SLIM_MODULE_TBLS = 0x00800000,
    CLRNATIVEIMAGE_RESOURCES        = 0x01000000,
    CLRNATIVEIMAGE_FILE_OFFSET      = 0x02000000,
    CLRNATIVEIMAGE_DEBUG_TRACE      = 0x04000000,
    CLRNATIVEIMAGE_RELOCATIONS      = 0x08000000,
    CLRNATIVEIMAGE_FIXUP_THUNKS     = 0x10000000,
    CLRNATIVEIMAGE_DEBUG_COVERAGE   = 0x80000000
} CLRNativeImageDumpOptions;
cpp_quote("#ifdef __cplusplus")
cpp_quote("inline CLRNativeImageDumpOptions operator|=(CLRNativeImageDumpOptions& lhs, CLRNativeImageDumpOptions rhs) { return (lhs = (CLRNativeImageDumpOptions)( ((unsigned)lhs) | ((unsigned)rhs) )); }")
cpp_quote("#endif")
typedef enum
{
    CLRDATAHINT_DISPLAY_HINTS_NONE          = 0,
    //array hints 0x000000ff
    CLRDATAHINT_DISPLAY_ARRAY_AS_TABLE      = 0x00000001,
    CLRDATAHINT_DISPLAY_ARRAY_AS_ARRAY      = 0x00000002,
    CLRDATAHINT_DISPLAY_ARRAY_AS_ARRAY_IDX  = 0x00000003, //print idx as field 1
    CLRDATAHINT_DISPLAY_ARRAY_AS_MAP        = 0x00000004,
    CLRDATAHINT_DISPLAY_ARRAY_HINT_MASK     = 0x000000ff,

    //structure hints
    CLRDATAHINT_DISPLAY_STRUCT_AS_TABLE     = 0x00000100,
    CLRDATAHINT_DISPLAY_STRUCT_HINT_MASK    = 0x0000ff00,

    //separate fields with tabs
    CLRDATAHINT_DISPLAY_SEP_TAB             = 0x00000000,
    //separate fields with spaces
    CLRDATAHINT_DISPLAY_SEP_SPACE           = 0x01000000,
    //separate first field by a tab, and all other fields with spaces
    CLRDATAHINT_DISPLAY_SEP_TAB_SPACE       = 0x02000000,
    CLRDATAHINT_DISPLAY_SEP_MASK            = 0xff000000,
} CLRDataDisplayHints;

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning for interface IXCLRDataProcess */

/*
 * This interface supports the loading of dependencies and processing of PE
 * files for the NativeImageDumper.
 */
[
    object,
    local,
    uuid(E5F3039D-2C0C-4230-A69E-12AF1C3E563C)
]
interface IXCLRLibrarySupport : IUnknown
{
    //loads a dependency.  It can fail if the image needs to be relocated.
    HRESULT LoadHardboundDependency(const WCHAR * name, REFGUID mvid,
                                    [out]SIZE_T *loadedBase);
    HRESULT LoadSoftboundDependency(const WCHAR * name,
                                    const BYTE * assemblymetadataBinding,
                                    const BYTE * hash, ULONG hashLength,
                                    [out]SIZE_T *loadedBase);
};

interface IXCLRDisassemblySupport;
typedef  SIZE_T (__stdcall *CDSTranslateAddrCB)(IXCLRDisassemblySupport *, CLRDATA_ADDRESS, wchar_t *, SIZE_T, DWORDLONG *);
typedef  SIZE_T (__stdcall *CDSTranslateFixupCB)(IXCLRDisassemblySupport *, CLRDATA_ADDRESS, SIZE_T, wchar_t *, SIZE_T, DWORDLONG *);
typedef  SIZE_T (__stdcall *CDSTranslateConstCB)(IXCLRDisassemblySupport *, DWORD, wchar_t *, SIZE_T);
typedef  SIZE_T (__stdcall *CDSTranslateRegrelCB)(IXCLRDisassemblySupport *, unsigned rega, CLRDATA_ADDRESS, wchar_t *, SIZE_T, DWORD *);

[
    object,
    local,
    uuid(1F0F7134-D3F3-47DE-8E9B-C2FD358A2936)
]
interface IXCLRDisassemblySupport : IUnknown
{
    HRESULT SetTranslateAddrCallback([in] CDSTranslateAddrCB cb);
    HRESULT PvClientSet([in] void * pv);

    SIZE_T CbDisassemble(CLRDATA_ADDRESS, const void *, SIZE_T);
    SIZE_T Cinstruction();
    BOOL FSelectInstruction(SIZE_T);
    SIZE_T CchFormatInstr(wchar_t *, SIZE_T);
    void *PvClient();
    HRESULT SetTranslateFixupCallback([in]CDSTranslateFixupCB cb);
    HRESULT SetTranslateConstCallback([in]CDSTranslateConstCB cb);
    HRESULT SetTranslateRegrelCallback([in]CDSTranslateRegrelCB cb);
    BOOL TargetIsAddress();
};

/*
 * This interface is passed to CLRDataCreateInstance::DumpNativeImage.  It
 * handles display of the logical data in the ngen image.
 */
[
    object,
    local,
    uuid(A3C1704A-4559-4a67-8D28-E8F4FE3B3F62) 
]
interface IXCLRDataDisplay : IUnknown
{
    HRESULT ErrorPrintF(const char * const fmt, ...);
    HRESULT NativeImageDimensions(SIZE_T base, SIZE_T size, DWORD sectionAlign);
    HRESULT Section(const char * const name, SIZE_T rva, SIZE_T size);
    HRESULT GetDumpOptions([out] CLRNativeImageDumpOptions * pOptions);

    //Start and end the document
    HRESULT StartDocument();
    HRESULT EndDocument();

    //XML-Constructs that do not map to actual fields or structures

    //A category is a top level section of the ngen output.  For example,
    //"Sections", "Directories", "CLR Info", etc.
    HRESULT StartCategory(const char * const name);
    HRESULT EndCategory();

    //starts an element containing either xml text or other elements.  Only
    //used within arrays and lists.  Otherwise use StartVStructure.
    HRESULT StartElement(const char * const name);
    HRESULT EndElement();
    //like a Structure, but without a name and size.  Used within categories
    //and structures.
    HRESULT StartVStructure(const char * const name );
    HRESULT StartVStructureWithOffset( const char * const name,
                                       unsigned fieldOffset,
                                       unsigned fieldSize );
    HRESULT EndVStructure();

    //An element that contains xml text.
    HRESULT StartTextElement(const char * const name);
    HRESULT EndTextElement();
    HRESULT WriteXmlText(const char * const fmt, ...);
    HRESULT WriteXmlTextBlock(const char * const fmt, ...);

    HRESULT WriteEmptyElement(const char * const element);


    //produces <element>ptr</element>
    HRESULT WriteElementPointer(const char * const element, SIZE_T ptr);
    HRESULT WriteElementPointerAnnotated(const char * const element, SIZE_T ptr,
                                         const WCHAR * const annotation );
    //produces <element base="base" size="size"/>
    HRESULT WriteElementAddress(const char * const element, SIZE_T base, SIZE_T size);
    HRESULT WriteElementAddressNamed(const char * const element, const char * const name, 
                                     SIZE_T base, SIZE_T size);
    HRESULT WriteElementAddressNamedW(const char * const element, const WCHAR * const name, 
                                      SIZE_T base, SIZE_T size);
    HRESULT WriteElementString(const char * const element, const char * const data);
    HRESULT WriteElementStringW(const char * const element, const WCHAR * const data);
    HRESULT WriteElementInt(const char * const element, int value);
    HRESULT WriteElementUInt(const char * const element, DWORD value);
    HRESULT WriteElementEnumerated(const char * const element, DWORD value,
                                   const WCHAR * const mnemonic);
    //writes <element>value</element> if value != suppressIfEqual.
    //in text mode the whole element is suppressed (and a "" is appended if
    //inside an array or list.
    HRESULT WriteElementIntWithSuppress( const char * const element, int value,
                                          int suppressIfEqual );
    //For text, it produces "(element)" or "" instead of "true" or "false".
    HRESULT WriteElementFlag(const char * const element, BOOL flag);

    //if countPrefix is not Null, displays a total at the end in text mode.
    //Arrays have headings in both text and xml.  Lists are "repeated elements"
    HRESULT StartArray( const char * const name, const WCHAR * const fmt);
    HRESULT EndArray( const char * const countPrefix );
    HRESULT StartList( const WCHAR * const fmt );
    HRESULT EndList();

    //XML-Constructs that represent real C++ Data structure
    HRESULT StartArrayWithOffset( const char * const name, unsigned fieldOffset,
                                  unsigned fieldSize, const WCHAR * const fmt );
#if 0

    //writes <element>value</element> if value != suppressIfEqual.
    //in text mode the whole element is suppressed (and a "" is appended if
    //inside an array or list.
    HRESULT WriteFieldIntWithSuppress( const char * const element, unsigned offset,
                                       int value, int suppressIfEqual );
#endif

    HRESULT WriteFieldString(const char * const element, unsigned fieldOffset,
                             unsigned fieldSize, const char * const data);
    HRESULT WriteFieldStringW(const char * const element, unsigned fieldOffset,
                              unsigned fieldSize, const WCHAR * const data);
    //produces <element>ptr</element>
    HRESULT WriteFieldPointer(const char * const element, unsigned fieldOffset,
                              unsigned fieldSize, SIZE_T ptr);
    //produces <element>ptr+size</element>
    HRESULT WriteFieldPointerWithSize(const char * const element,
                                      unsigned fieldOffset, unsigned fieldSize,
                                      SIZE_T ptr, SIZE_T size);
    HRESULT WriteFieldInt(const char * const element, unsigned fieldOffset,
                          unsigned fieldSize, int value);
    HRESULT WriteFieldUInt(const char * const element, unsigned fieldOffset,
                           unsigned fieldSize, DWORD value);
    HRESULT WriteFieldEnumerated(const char * const element, unsigned fieldOffset,
                                 unsigned fieldSize, DWORD value,
                                 const WCHAR * const mnemonic);
    HRESULT WriteFieldEmpty(const char * const element, unsigned fieldOffset,
                            unsigned fieldSize);
    HRESULT WriteFieldFlag(const char * const element, unsigned fieldOffset,
                           unsigned fieldSize, BOOL flag);
    HRESULT WriteFieldPointerAnnotated(const char * const element,
                                       unsigned fieldOffset, unsigned fieldSize,
                                       SIZE_T ptr, const WCHAR * const annotation);

    //produces <element base="base" size="size"/>
    HRESULT WriteFieldAddress(const char * const element, unsigned fieldOffset,
                              unsigned fieldSize, SIZE_T base, SIZE_T size);
    //For text, it produces "(element)" or "" instead of "true" or "false".
#if 0
    HRESULT WriteFieldFlag(const char * const element, unsigned offset, BOOL flag);
    HRESULT WriteFieldInt(const char * const element, unsigned offset, int value);
    HRESULT WriteFieldUInt(const char * const element, unsigned offset, DWORD value);


    HRESULT WriteFieldEnumerated(const char * const element, unsigned offset,
                                 DWORD value, const WCHAR * const mnemonic);
#endif
    //structures are like categories and elements, but they have a base and
    //size.
    HRESULT StartStructure( const char * const name, SIZE_T ptr, SIZE_T size );
    HRESULT StartStructureWithNegSpace( const char * const name, SIZE_T ptr,
                                        SIZE_T startPtr, SIZE_T totalSize );
    HRESULT StartStructureWithOffset( const char * const name, unsigned fieldOffset,
                                      unsigned fieldSize, SIZE_T ptr,
                                      SIZE_T size );
    HRESULT EndStructure();
#if 0
    //produces <element>ptr+size</element>
    HRESULT WriteElementPointerWithSize(const char * const element, SIZE_T ptr,
                                        SIZE_T size);
    HRESULT WriteElementInt(const char * const element, int value);


    HRESULT WriteFixupDescription(SIZE_T ptr, DWORD tagged, SIZE_T handle,
                                  const char * const name );


    //structures are like categories and elements, but they have a base and
    //size.
    HRESULT StartStructure( const char * const name, SIZE_T ptr, SIZE_T size );
    HRESULT EndStructure();

#endif
};

/*
 * Interface representing the process itself. Can be obtained via
 * CLRDataCreateInstance.
 */
[
    object,
    local,
    uuid(5c552ab6-fc09-4cb3-8e36-22fa03c798b7)
]
interface IXCLRDataProcess : IUnknown
{
    /*
     * Flush any cached data for this process. All ICLR* interfaces obtained
     * for this process will become invalid with this call.
     */
    HRESULT Flush();

    /*
     * Begin enumeration of tasks.
     * Returns S_FALSE if the enumeration is empty.
     */
    HRESULT StartEnumTasks([out] CLRDATA_ENUM* handle);

    /*
     * Get the next entry in the enumeration.
     * Returns S_FALSE if there isn't a next entry.
     */
    HRESULT EnumTask([in, out] CLRDATA_ENUM* handle,
                     [out] IXCLRDataTask** task);

    /*
     * Release the enumerator.
     */
    HRESULT EndEnumTasks([in] CLRDATA_ENUM handle);

    /*
     * Get the managed task running on the given OS thread ID
     */
    HRESULT GetTaskByOSThreadID([in] ULONG32 osThreadID,
                                [out] IXCLRDataTask** task);

    /*
     * Get the managed task corresponding to the given task ID.
     */
    HRESULT GetTaskByUniqueID([in] ULONG64 taskID,
                              [out] IXCLRDataTask** task);

    /*
     * Get state flags, defined in CLRDataProcessFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);

    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataProcess* process);
    
    /*
     * Get the managed object representing the process.
     */
    HRESULT GetManagedObject([out] IXCLRDataValue** value);
    
    /*
     * Mark the process so that it attempts to reach the
     * desired execution state the next time it executes.
     */
    HRESULT GetDesiredExecutionState([out] ULONG32* state);
    HRESULT SetDesiredExecutionState([in] ULONG32 state);
    
    /*
     * Return an indicator of the type of data referred
     * to by the given address.
     */
    HRESULT GetAddressType([in] CLRDATA_ADDRESS address,
                           [out] CLRDataAddressType* type);

    /*
     * Get a name for the given address if
     * the address refers to non-managed-method information.
     * Method names can be retrieved by using GetMethodInstanceByAddress
     * and GetName on the method instance.
     * 
     * Returns S_FALSE if the buffer is not large enough for the name,
     * and sets nameLen to be the buffer length needed.
     */
    HRESULT GetRuntimeNameByAddress([in] CLRDATA_ADDRESS address,
                                    [in] ULONG32 flags,
                                    [in] ULONG32 bufLen,
                                    [out] ULONG32 *nameLen,
                                    [out, size_is(bufLen)] WCHAR nameBuf[],
                                    [out] CLRDATA_ADDRESS* displacement);

    /*
     * App domain enumeration.
     */
    HRESULT StartEnumAppDomains([out] CLRDATA_ENUM* handle);
    HRESULT EnumAppDomain([in, out] CLRDATA_ENUM* handle,
                          [out] IXCLRDataAppDomain** appDomain);
    HRESULT EndEnumAppDomains([in] CLRDATA_ENUM handle);

    /*
     * Find an app domain by its unique ID.
     */
    HRESULT GetAppDomainByUniqueID([in] ULONG64 id,
                                   [out] IXCLRDataAppDomain** appDomain);

    /*
     * Assembly enumeration.
     */
    HRESULT StartEnumAssemblies([out] CLRDATA_ENUM* handle);
    HRESULT EnumAssembly([in, out] CLRDATA_ENUM* handle,
                         [out] IXCLRDataAssembly **assembly);
    HRESULT EndEnumAssemblies([in] CLRDATA_ENUM handle);

    /*
     * Module enumeration.
     */
    HRESULT StartEnumModules([out] CLRDATA_ENUM* handle);
    HRESULT EnumModule([in, out] CLRDATA_ENUM* handle,
                       [out] IXCLRDataModule **mod);
    HRESULT EndEnumModules([in] CLRDATA_ENUM handle);

    /*
     * Look up a module by address.
     */
    HRESULT GetModuleByAddress([in] CLRDATA_ADDRESS address,
                               [out] IXCLRDataModule** mod);
    
    /*
     * Look up method instances by native code address.
     */
    HRESULT StartEnumMethodInstancesByAddress([in] CLRDATA_ADDRESS address,
                                              [in] IXCLRDataAppDomain* appDomain,
                                              [out] CLRDATA_ENUM* handle);
    HRESULT EnumMethodInstanceByAddress([in] CLRDATA_ENUM* handle,
                                        [out] IXCLRDataMethodInstance** method);
    HRESULT EndEnumMethodInstancesByAddress([in] CLRDATA_ENUM handle);

    /*
     * Look up the name and value of a piece of data by its address.
     */
    HRESULT GetDataByAddress([in] CLRDATA_ADDRESS address,
                             [in] ULONG32 flags,
                             [in] IXCLRDataAppDomain* appDomain,
                             [in] IXCLRDataTask* tlsTask,
                             [in] ULONG32 bufLen,
                             [out] ULONG32 *nameLen,
                             [out, size_is(bufLen)] WCHAR nameBuf[],
                             [out] IXCLRDataValue** value,
                             [out] CLRDATA_ADDRESS* displacement);

    /*
     * Get managed state, if any, for the given system exception.
     * OBSOLETE, DO NOT USE.
     */
    HRESULT GetExceptionStateByExceptionRecord([in] EXCEPTION_RECORD64* record,
                                               [out] IXCLRDataExceptionState **exState);

    /*
     * Translate a system exception record into
     * a particular kind of notification if possible.
     */
    HRESULT TranslateExceptionRecordToNotification([in] EXCEPTION_RECORD64* record,
                                                   [in] IXCLRDataExceptionNotification* notify);

    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Create a simple value based on the given
     * type and address information.
     */
    HRESULT CreateMemoryValue([in] IXCLRDataAppDomain* appDomain,
                              [in] IXCLRDataTask* tlsTask,
                              [in] IXCLRDataTypeInstance* type,
                              [in] CLRDATA_ADDRESS addr,
                              [out] IXCLRDataValue** value);

    /*
     * Update all existing notifications for a module.
     * If module is NULL all modules are affected.
     */
    HRESULT SetAllTypeNotifications(IXCLRDataModule* mod,
                                    ULONG32 flags);
    HRESULT SetAllCodeNotifications(IXCLRDataModule* mod,
                                    ULONG32 flags);
    
    /*
     * Request notification when a type is
     * loaded or unloaded.
     * If mods is NULL singleMod is used as
     * the module for all tokens.
     * If flags is NULL singleFlags is used as
     * the flags for all tokens.
     */
    HRESULT GetTypeNotifications([in] ULONG32 numTokens,
                                 [in, size_is(numTokens)]
                                 IXCLRDataModule* mods[],
                                 [in] IXCLRDataModule* singleMod,
                                 [in, size_is(numTokens)] mdTypeDef tokens[],
                                 [out, size_is(numTokens)] ULONG32 flags[]);
    HRESULT SetTypeNotifications([in] ULONG32 numTokens,
                                 [in, size_is(numTokens)]
                                 IXCLRDataModule* mods[],
                                 [in] IXCLRDataModule* singleMod,
                                 [in, size_is(numTokens)] mdTypeDef tokens[],
                                 [in, size_is(numTokens)] ULONG32 flags[],
                                 [in] ULONG32 singleFlags);
    
    /*
     * Request notification when code is generated or
     * discarded for a method.
     * If mods is NULL singleMod is used as
     * the module for all tokens.
     * If flags is NULL singleFlags is used as
     * the flags for all tokens.
     */
    HRESULT GetCodeNotifications([in] ULONG32 numTokens,
                                 [in, size_is(numTokens)]
                                 IXCLRDataModule* mods[],
                                 [in] IXCLRDataModule* singleMod,
                                 [in, size_is(numTokens)] mdMethodDef tokens[],
                                 [out, size_is(numTokens)] ULONG32 flags[]);
    HRESULT SetCodeNotifications([in] ULONG32 numTokens,
                                 [in, size_is(numTokens)]
                                 IXCLRDataModule* mods[],
                                 [in] IXCLRDataModule* singleMod,
                                 [in, size_is(numTokens)] mdMethodDef tokens[],
                                 [in, size_is(numTokens)] ULONG32 flags[],
                                 [in] ULONG32 singleFlags);

    /*
     * Control notifications other than code and
     * type notifications.
     */
    HRESULT GetOtherNotificationFlags([out] ULONG32* flags);
    HRESULT SetOtherNotificationFlags([in] ULONG32 flags);
    
    /*
     * Look up method definitions by IL code address.
     */
    HRESULT StartEnumMethodDefinitionsByAddress([in] CLRDATA_ADDRESS address,
                                                [out] CLRDATA_ENUM* handle);
    HRESULT EnumMethodDefinitionByAddress([in] CLRDATA_ENUM* handle,
                                          [out] IXCLRDataMethodDefinition** method);
    HRESULT EndEnumMethodDefinitionsByAddress([in] CLRDATA_ENUM handle);

    /*
     * Given an address which is a CLR stub
     * (and potentially state from a previous follow)
     * determine the next execution address at which
     * to check whether the stub has been exited.
     * OBSOLETE: Use FollowStub2.
     */
    HRESULT FollowStub([in] ULONG32 inFlags,
                       [in] CLRDATA_ADDRESS inAddr,
                       [in] CLRDATA_FOLLOW_STUB_BUFFER* inBuffer,
                       [out] CLRDATA_ADDRESS* outAddr,
                       [out] CLRDATA_FOLLOW_STUB_BUFFER* outBuffer,
                       [out] ULONG32* outFlags);

    /* Requires revision 7. */
    HRESULT FollowStub2([in] IXCLRDataTask* task,
                        [in] ULONG32 inFlags,
                        [in] CLRDATA_ADDRESS inAddr,
                        [in] CLRDATA_FOLLOW_STUB_BUFFER* inBuffer,
                        [out] CLRDATA_ADDRESS* outAddr,
                        [out] CLRDATA_FOLLOW_STUB_BUFFER* outBuffer,
                        [out] ULONG32* outFlags);
    HRESULT DumpNativeImage([in] CLRDATA_ADDRESS loadedBase,
                            [in] LPCWSTR name,
                            [in] IXCLRDataDisplay* display,
                            [in] IXCLRLibrarySupport* libSupport,
                            [in] IXCLRDisassemblySupport* dis);
}
#pragma warning(pop)

/*
 * Types used in IXCLRDataProcess2 and IXCLRDataExceptionNotification3
 */
 
typedef enum
{
    GC_MARK_END = 1,
    GC_EVENT_TYPE_MAX,
} GcEvt_t;

typedef struct
{
    GcEvt_t typ;

    [switch_is(typ)]
    union
    {
    	[case(GC_MARK_END)]
        int condemnedGeneration;
    };
} GcEvtArgs;


[
    object,
    local,
    uuid(5c552ab6-fc09-4cb3-8e36-22fa03c798b8)
]
interface IXCLRDataProcess2 : IXCLRDataProcess
{
    /*
     * Request notification when a GC is triggered.
     * GcEvtArgs specifies exactly which GC events 
     * are of interest.
     */
    /*
     * On entry gcEvtArgs is a mask, specifying all events of
     * interest, in accordance with GcNotification::IsMatch
     * On exit it represents the first entry matching the input.
     */
	HRESULT GetGcNotification([in, out] GcEvtArgs* gcEvtArgs);
	HRESULT SetGcNotification([in] GcEvtArgs gcEvtArgs);
}

typedef enum
{
    CLRDATA_DOMAIN_DEFAULT = 0x00000000,
} CLRDataAppDomainFlag;

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning 28718 for interface IXCLRDataAppDomain */
[
    object,
    local,
    uuid(7CA04601-C702-4670-A63C-FA44F7DA7BD5)
]
interface IXCLRDataAppDomain : IUnknown
{
    /*
     * Get the process that contains this app domain.
     */
    HRESULT GetProcess([out] IXCLRDataProcess** process);

    /*
     * Get the app domain's name.
     */
    HRESULT GetName([in] ULONG32 bufLen,
                    [out] ULONG32 *nameLen,
                    [out, size_is(bufLen)] WCHAR name[]);

    /* 
     * Get a unique, stable identifier for this object.
     */
    HRESULT GetUniqueID([out] ULONG64* id);

    /*
     * Get state flags, defined in CLRDataAppDomainFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);
    
    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataAppDomain* appDomain);
    
    /*
     * Get the managed object representing the app domain.
     */
    HRESULT GetManagedObject([out] IXCLRDataValue** value);

    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);
}
#pragma warning(pop)

typedef enum
{
    CLRDATA_ASSEMBLY_DEFAULT = 0x00000000,
} CLRDataAssemblyFlag;

#pragma warning(push)
#pragma warning(disable:28718)
[
    object,
    local,
    uuid(2FA17588-43C2-46ab-9B51-C8F01E39C9AC)
]
interface IXCLRDataAssembly : IUnknown
{
    /*
     * Enumerate modules in the assembly.
     */
    HRESULT StartEnumModules([out] CLRDATA_ENUM* handle);
    HRESULT EnumModule([in, out] CLRDATA_ENUM* handle,
                       [out] IXCLRDataModule **mod);
    HRESULT EndEnumModules([in] CLRDATA_ENUM handle);

    /*
     * Get the assembly's base name.
     */
    HRESULT GetName([in] ULONG32 bufLen,
                    [out] ULONG32 *nameLen,
                    [out, size_is(bufLen)] WCHAR name[]);

    /*
     * Get the full path and filename for the assembly,
     * if there is one.
     */
    HRESULT GetFileName([in] ULONG32 bufLen,
                        [out] ULONG32 *nameLen,
                        [out, size_is(bufLen)] WCHAR name[]);

    /*
     * Get state flags, defined in CLRDataAssemblyFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);
    
    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataAssembly* assembly);
    
    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Enumerate the app domains using this assembly.
     */
    HRESULT StartEnumAppDomains([out] CLRDATA_ENUM* handle);
    HRESULT EnumAppDomain([in, out] CLRDATA_ENUM* handle,
                          [out] IXCLRDataAppDomain** appDomain);
    HRESULT EndEnumAppDomains([in] CLRDATA_ENUM handle);

    /*
     * Get the metadata display name for the assembly.
     * Requires revision 2.
     */
    HRESULT GetDisplayName([in] ULONG32 bufLen,
                           [out] ULONG32 *nameLen,
                           [out, size_is(bufLen)] WCHAR name[]);
}
#pragma warning(pop)

typedef enum
{
    CLRDATA_MODULE_DEFAULT          = 0x00000000,
    CLRDATA_MODULE_IS_DYNAMIC       = 0x00000001,
    CLRDATA_MODULE_IS_MEMORY_STREAM = 0x00000002,
} CLRDataModuleFlag;

typedef enum
{
    CLRDATA_MODULE_PE_FILE,
    CLRDATA_MODULE_PREJIT_FILE,
    CLRDATA_MODULE_MEMORY_STREAM,
    CLRDATA_MODULE_OTHER
} CLRDataModuleExtentType;

typedef struct
{
    CLRDATA_ADDRESS base;
    ULONG32 length;
    CLRDataModuleExtentType type;
} CLRDATA_MODULE_EXTENT;

typedef enum
{
    CLRDATA_TYPENOTIFY_NONE     = 0x00000000,
    CLRDATA_TYPENOTIFY_LOADED   = 0x00000001,
    CLRDATA_TYPENOTIFY_UNLOADED = 0x00000002,
} CLRDataTypeNotification;

typedef enum
{
    CLRDATA_METHNOTIFY_NONE      = 0x00000000,
    CLRDATA_METHNOTIFY_GENERATED = 0x00000001,
    CLRDATA_METHNOTIFY_DISCARDED = 0x00000002,
} CLRDataMethodCodeNotification;

#pragma warning(push)
#pragma warning(disable:28718)
/* 
 * Represents a loaded module.
 * 
 * Can be QI'd for a metadata interface or a symbol-store interface.
 */
[
    object,
    local,
    uuid(88E32849-0A0A-4cb0-9022-7CD2E9E139E2)
]
interface IXCLRDataModule : IUnknown
{
    /*
     * Enumerate assemblies this module is part of.
     * Module-to-assembly is an enumeration as a
     * shared module might be part of more than one assembly.
     */
    HRESULT StartEnumAssemblies([out] CLRDATA_ENUM* handle);
    HRESULT EnumAssembly([in, out] CLRDATA_ENUM* handle,
                         [out] IXCLRDataAssembly **assembly);
    HRESULT EndEnumAssemblies([in] CLRDATA_ENUM handle);

    /*
     * Enumerate types in this module.
     */
    HRESULT StartEnumTypeDefinitions([out] CLRDATA_ENUM* handle);
    HRESULT EnumTypeDefinition([in, out] CLRDATA_ENUM* handle,
                               [out] IXCLRDataTypeDefinition **typeDefinition);
    HRESULT EndEnumTypeDefinitions([in] CLRDATA_ENUM handle);

    HRESULT StartEnumTypeInstances([in] IXCLRDataAppDomain* appDomain,
                                   [out] CLRDATA_ENUM* handle);
    HRESULT EnumTypeInstance([in, out] CLRDATA_ENUM* handle,
                             [out] IXCLRDataTypeInstance **typeInstance);
    HRESULT EndEnumTypeInstances([in] CLRDATA_ENUM handle);

    /*
     * Look up types by name.
     */
    HRESULT StartEnumTypeDefinitionsByName([in] LPCWSTR name,
                                           [in] ULONG32 flags,
                                           [out] CLRDATA_ENUM* handle);
    HRESULT EnumTypeDefinitionByName([in,out] CLRDATA_ENUM* handle,
                                     [out] IXCLRDataTypeDefinition** type);
    HRESULT EndEnumTypeDefinitionsByName([in] CLRDATA_ENUM handle);

    HRESULT StartEnumTypeInstancesByName([in] LPCWSTR name,
                                         [in] ULONG32 flags,
                                         [in] IXCLRDataAppDomain* appDomain,
                                         [out] CLRDATA_ENUM* handle);
    HRESULT EnumTypeInstanceByName([in,out] CLRDATA_ENUM* handle,
                                   [out] IXCLRDataTypeInstance** type);
    HRESULT EndEnumTypeInstancesByName([in] CLRDATA_ENUM handle);

    /*
     * Get a type definition by metadata token.
     */
    HRESULT GetTypeDefinitionByToken([in] mdTypeDef token,
                                     [out] IXCLRDataTypeDefinition** typeDefinition);
    
    /*
     * Look up methods by name.
     */
    HRESULT StartEnumMethodDefinitionsByName([in] LPCWSTR name,
                                             [in] ULONG32 flags,
                                             [out] CLRDATA_ENUM* handle);
    HRESULT EnumMethodDefinitionByName([in,out] CLRDATA_ENUM* handle,
                                       [out] IXCLRDataMethodDefinition** method);
    HRESULT EndEnumMethodDefinitionsByName([in] CLRDATA_ENUM handle);
    
    HRESULT StartEnumMethodInstancesByName([in] LPCWSTR name,
                                           [in] ULONG32 flags,
                                           [in] IXCLRDataAppDomain* appDomain,
                                           [out] CLRDATA_ENUM* handle);
    HRESULT EnumMethodInstanceByName([in,out] CLRDATA_ENUM* handle,
                                     [out] IXCLRDataMethodInstance** method);
    HRESULT EndEnumMethodInstancesByName([in] CLRDATA_ENUM handle);
    
    /*
     * Get a method definition by metadata token.
     */
    HRESULT GetMethodDefinitionByToken([in] mdMethodDef token,
                                       [out] IXCLRDataMethodDefinition** methodDefinition);

    /*
     * Look up pieces of data by name.
     */
    HRESULT StartEnumDataByName([in] LPCWSTR name,
                                [in] ULONG32 flags,
                                [in] IXCLRDataAppDomain* appDomain,
                                [in] IXCLRDataTask* tlsTask,
                                [out] CLRDATA_ENUM* handle);
    HRESULT EnumDataByName([in,out] CLRDATA_ENUM* handle,
                           [out] IXCLRDataValue** value);
    HRESULT EndEnumDataByName([in] CLRDATA_ENUM handle);
    
    /*
     * Get the module's base name.
     */
    HRESULT GetName([in] ULONG32 bufLen,
                    [out] ULONG32 *nameLen,
                    [out, size_is(bufLen)] WCHAR name[]);

    /*
     * Get the full path and filename for the module,
     * if there is one.
     */
    HRESULT GetFileName([in] ULONG32 bufLen,
                        [out] ULONG32 *nameLen,
                        [out, size_is(bufLen)] WCHAR name[]);

    /*
     * Get state flags, defined in CLRDataModuleFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);
    
    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataModule* mod);
    
    /*
     * Get the memory regions associated with this module.
     */
    HRESULT StartEnumExtents([out] CLRDATA_ENUM* handle);
    HRESULT EnumExtent([in, out] CLRDATA_ENUM* handle,
                       [out] CLRDATA_MODULE_EXTENT* extent);
    HRESULT EndEnumExtents([in] CLRDATA_ENUM handle);

    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Enumerate the app domains using this module.
     */
    HRESULT StartEnumAppDomains([out] CLRDATA_ENUM* handle);
    HRESULT EnumAppDomain([in, out] CLRDATA_ENUM* handle,
                          [out] IXCLRDataAppDomain** appDomain);
    HRESULT EndEnumAppDomains([in] CLRDATA_ENUM handle);

    /*
     * Get the module's version ID.
     * Requires revision 3.
     */
    HRESULT GetVersionId([out] GUID* vid);
}
#pragma warning(pop)


/* 
 * Represents additional APIs for a loaded module.
 * 
 */
[
    object,
    local,
    uuid(34625881-7EB3-4524-817B-8DB9D064C760)
]
interface IXCLRDataModule2 : IUnknown
{
  /*
   * SetJITCompilerFlags sets the flags that control the JIT compiler. If the set of flags is invalid,
   * the function will fail. This function can only be called from within the LoadModule callback
   * for the given module.
   */
    HRESULT SetJITCompilerFlags( [in] DWORD dwFlags );
}

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning 28718 for interface IXCLRDataTypeDefinition */
[
    object,
    local,
    uuid(4675666C-C275-45b8-9F6C-AB165D5C1E09)
]
interface IXCLRDataTypeDefinition : IUnknown
{
    /*
     * Get the module this type is part of.
     */
    HRESULT GetModule([out] IXCLRDataModule **mod);

    /*
     * Enumerate the methods for this type.
     */
    HRESULT StartEnumMethodDefinitions([out] CLRDATA_ENUM* handle);
    HRESULT EnumMethodDefinition([in, out] CLRDATA_ENUM* handle,
                                 [out] IXCLRDataMethodDefinition **methodDefinition);
    HRESULT EndEnumMethodDefinitions([in] CLRDATA_ENUM handle);

    /*
     * Look up methods by name.
     */
    HRESULT StartEnumMethodDefinitionsByName([in] LPCWSTR name,
                                             [in] ULONG32 flags,
                                             [out] CLRDATA_ENUM* handle);
    HRESULT EnumMethodDefinitionByName([in,out] CLRDATA_ENUM* handle,
                                       [out] IXCLRDataMethodDefinition** method);
    HRESULT EndEnumMethodDefinitionsByName([in] CLRDATA_ENUM handle);

    /*
     * Get a method definition by metadata token.
     */
    HRESULT GetMethodDefinitionByToken([in] mdMethodDef token,
                                       [out] IXCLRDataMethodDefinition** methodDefinition);
    
    /*
     * Enumerate instances of this definition.
     */
    HRESULT StartEnumInstances([in] IXCLRDataAppDomain* appDomain,
                               [out] CLRDATA_ENUM* handle);
    HRESULT EnumInstance([in, out] CLRDATA_ENUM* handle,
                         [out] IXCLRDataTypeInstance **instance);
    HRESULT EndEnumInstances([in] CLRDATA_ENUM handle);

    /*
     * Get the namespace-qualified name for this type definition.
     */
    HRESULT GetName([in] ULONG32 flags,
                    [in] ULONG32 bufLen,
                    [out] ULONG32 *nameLen,
                    [out, size_is(bufLen)] WCHAR nameBuf[]);

    /*
     * Get the metadata token and scope.
     */
    HRESULT GetTokenAndScope([out] mdTypeDef* token,
                             [out] IXCLRDataModule **mod);

    /*
     * Get standard element type.
     */
    HRESULT GetCorElementType([out] CorElementType* type);
    
    /*
     * Get state flags, defined in CLRDataTypeFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);
    
    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataTypeDefinition* type);
    
    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * If this is an array type, return the number
     * of dimensions in the array.
     */
    HRESULT GetArrayRank([out] ULONG32* rank);

    /*
     * Get the base type of this type, if any.
     */
    HRESULT GetBase([out] IXCLRDataTypeDefinition** base);

    /*
     * Get the number of fields in the type.
     */
    HRESULT GetNumFields([in] ULONG32 flags,
                         [out] ULONG32* numFields);

    /*
     * Enumerate the fields for this type.
     * OBSOLETE: Use EnumField2.
     */
    HRESULT StartEnumFields([in] ULONG32 flags,
                            [out] CLRDATA_ENUM* handle);
    HRESULT EnumField([in, out] CLRDATA_ENUM* handle,
                      [in] ULONG32 nameBufLen,
                      [out] ULONG32* nameLen,
                      [out, size_is(nameBufLen)] WCHAR nameBuf[],
                      [out] IXCLRDataTypeDefinition** type,
                      [out] ULONG32* flags,
                      [out] mdFieldDef* token);
    HRESULT EndEnumFields([in] CLRDATA_ENUM handle);

    HRESULT StartEnumFieldsByName([in] LPCWSTR name,
                                  [in] ULONG32 nameFlags,
                                  [in] ULONG32 fieldFlags,
                                  [out] CLRDATA_ENUM* handle);
    HRESULT EnumFieldByName([in, out] CLRDATA_ENUM* handle,
                            [out] IXCLRDataTypeDefinition** type,
                            [out] ULONG32* flags,
                            [out] mdFieldDef* token);
    HRESULT EndEnumFieldsByName([in] CLRDATA_ENUM handle);

    /*
     * Look up information for a specific field by token.
     */
    HRESULT GetFieldByToken([in] mdFieldDef token,
                            [in] ULONG32 nameBufLen,
                            [out] ULONG32* nameLen,
                            [out, size_is(nameBufLen)] WCHAR nameBuf[],
                            [out] IXCLRDataTypeDefinition** type,
                            [out] ULONG32* flags);
    
    /*
     * Request notification when the given type is
     * loaded or unloaded.
     */
    HRESULT GetTypeNotification([out] ULONG32* flags);
    HRESULT SetTypeNotification([in] ULONG32 flags);

    HRESULT EnumField2([in, out] CLRDATA_ENUM* handle,
                       [in] ULONG32 nameBufLen,
                       [out] ULONG32* nameLen,
                       [out, size_is(nameBufLen)] WCHAR nameBuf[],
                       [out] IXCLRDataTypeDefinition** type,
                       [out] ULONG32* flags,
                       [out] IXCLRDataModule** tokenScope,
                       [out] mdFieldDef* token);
    HRESULT EnumFieldByName2([in, out] CLRDATA_ENUM* handle,
                             [out] IXCLRDataTypeDefinition** type,
                             [out] ULONG32* flags,
                             [out] IXCLRDataModule** tokenScope,
                             [out] mdFieldDef* token);
    HRESULT GetFieldByToken2([in] IXCLRDataModule* tokenScope,
                             [in] mdFieldDef token,
                             [in] ULONG32 nameBufLen,
                             [out] ULONG32* nameLen,
                             [out, size_is(nameBufLen)] WCHAR nameBuf[],
                             [out] IXCLRDataTypeDefinition** type,
                             [out] ULONG32* flags);
}
#pragma warning(pop)

#pragma warning(push)
#pragma warning(disable:28718)
[
    object,
    local,
    uuid(4D078D91-9CB3-4b0d-97AC-28C8A5A82597)
]
interface IXCLRDataTypeInstance : IUnknown
{
    /*
     * Enumerate method instances within this type.
     */
    HRESULT StartEnumMethodInstances([out] CLRDATA_ENUM* handle);
    HRESULT EnumMethodInstance([in, out] CLRDATA_ENUM* handle,
                               [out] IXCLRDataMethodInstance** methodInstance);
    HRESULT EndEnumMethodInstances([in] CLRDATA_ENUM handle);

    /*
     * Look up method instances by name.
     */
    HRESULT StartEnumMethodInstancesByName([in] LPCWSTR name,
                                           [in] ULONG32 flags,
                                           [out] CLRDATA_ENUM* handle);
    HRESULT EnumMethodInstanceByName([in,out] CLRDATA_ENUM* handle,
                                     [out] IXCLRDataMethodInstance** method);
    HRESULT EndEnumMethodInstancesByName([in] CLRDATA_ENUM handle);
    
    /*
     * Get the number of static fields in the type.
     * OBSOLETE: Use GetNumStaticFields2.
     */
    HRESULT GetNumStaticFields([out] ULONG32* numFields);

    /*
     * Get one static field of the type.
     *
     * Because static field ordering is not fixed, can also return name
     * information and/or the metadata token, if the caller passes
     * in appropriate values.
     * OBSOLETE: Use EnumStaticField.
     */
    HRESULT GetStaticFieldByIndex([in] ULONG32 index,
                                  [in] IXCLRDataTask* tlsTask,
                                  [out] IXCLRDataValue **field,
                                  [in] ULONG32 bufLen,
                                  [out] ULONG32 *nameLen,
                                  [out, size_is(bufLen)] WCHAR nameBuf[],
                                  [out] mdFieldDef* token);

    /*
     * Look up fields by name.
     * OBSOLETE: Use EnumStaticFieldByName2.
     */
    HRESULT StartEnumStaticFieldsByName([in] LPCWSTR name,
                                        [in] ULONG32 flags,
                                        [in] IXCLRDataTask* tlsTask,
                                        [out] CLRDATA_ENUM* handle);
    HRESULT EnumStaticFieldByName([in,out] CLRDATA_ENUM* handle,
                                  [out] IXCLRDataValue** value);
    HRESULT EndEnumStaticFieldsByName([in] CLRDATA_ENUM handle);

    /*
     * Enumerate this type's parameterization.
     */
    HRESULT GetNumTypeArguments([out] ULONG32* numTypeArgs);
    HRESULT GetTypeArgumentByIndex([in] ULONG32 index,
                                   [out] IXCLRDataTypeInstance** typeArg);

    /*
     * Get the fully qualified name for this type instance.
     */
    HRESULT GetName([in] ULONG32 flags,
                    [in] ULONG32 bufLen,
                    [out] ULONG32 *nameLen,
                    [out, size_is(bufLen)] WCHAR nameBuf[]);

    /*
     * Get the module for this type instance.
     */
    HRESULT GetModule([out] IXCLRDataModule **mod);

    /*
     * Get the definition matching this instance.
     */
    HRESULT GetDefinition([out] IXCLRDataTypeDefinition **typeDefinition);

    /*
     * Get state flags, defined in CLRDataTypeFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);
    
    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataTypeInstance* type);
    
    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Get the number of static fields in the type.
     */
    HRESULT GetNumStaticFields2([in] ULONG32 flags,
                                [out] ULONG32* numFields);

    /*
     * Enumerate values for the static fields of this type.
     */
    HRESULT StartEnumStaticFields([in] ULONG32 flags,
                                  [in] IXCLRDataTask* tlsTask,
                                  [out] CLRDATA_ENUM* handle);
    HRESULT EnumStaticField([in,out] CLRDATA_ENUM* handle,
                            [out] IXCLRDataValue** value);
    HRESULT EndEnumStaticFields([in] CLRDATA_ENUM handle);

    HRESULT StartEnumStaticFieldsByName2([in] LPCWSTR name,
                                         [in] ULONG32 nameFlags,
                                         [in] ULONG32 fieldFlags,
                                         [in] IXCLRDataTask* tlsTask,
                                         [out] CLRDATA_ENUM* handle);
    HRESULT EnumStaticFieldByName2([in,out] CLRDATA_ENUM* handle,
                                   [out] IXCLRDataValue** value);
    HRESULT EndEnumStaticFieldsByName2([in] CLRDATA_ENUM handle);

    /*
     * Retrieve a static field by field metadata token.
     */
    HRESULT GetStaticFieldByToken([in] mdFieldDef token,
                                  [in] IXCLRDataTask* tlsTask,
                                  [out] IXCLRDataValue **field,
                                  [in] ULONG32 bufLen,
                                  [out] ULONG32 *nameLen,
                                  [out, size_is(bufLen)] WCHAR nameBuf[]);

    /*
     * Get the base type of this type, if any.
     */
    HRESULT GetBase([out] IXCLRDataTypeInstance** base);

    HRESULT EnumStaticField2([in,out] CLRDATA_ENUM* handle,
                             [out] IXCLRDataValue** value,
                             [in] ULONG32 bufLen,
                             [out] ULONG32 *nameLen,
                             [out, size_is(bufLen)] WCHAR nameBuf[],
                             [out] IXCLRDataModule** tokenScope,
                             [out] mdFieldDef* token);
    HRESULT EnumStaticFieldByName3([in,out] CLRDATA_ENUM* handle,
                                   [out] IXCLRDataValue** value,
                                   [out] IXCLRDataModule** tokenScope,
                                   [out] mdFieldDef* token);
    HRESULT GetStaticFieldByToken2([in] IXCLRDataModule* tokenScope,
                                   [in] mdFieldDef token,
                                   [in] IXCLRDataTask* tlsTask,
                                   [out] IXCLRDataValue **field,
                                   [in] ULONG32 bufLen,
                                   [out] ULONG32 *nameLen,
                                   [out, size_is(bufLen)] WCHAR nameBuf[]);
}
#pragma warning(pop)

typedef enum
{
    CLRDATA_SOURCE_TYPE_INVALID        = 0x00, // To indicate that nothing else applies
} CLRDataSourceType;

/*
 * Special IL offset values for special regions.
 */
typedef enum
{
    CLRDATA_IL_OFFSET_NO_MAPPING = -1,
    CLRDATA_IL_OFFSET_PROLOG     = -2,
    CLRDATA_IL_OFFSET_EPILOG     = -3
} CLRDATA_IL_OFFSET_MARKER;

typedef struct
{
    ULONG32 ilOffset;
    CLRDATA_ADDRESS startAddress;
    CLRDATA_ADDRESS endAddress;
    CLRDataSourceType type;
} CLRDATA_IL_ADDRESS_MAP;

typedef enum
{
    CLRDATA_METHOD_DEFAULT  = 0x00000000,

    // Method has a 'this' pointer.
    CLRDATA_METHOD_HAS_THIS = 0x00000001,
} CLRDataMethodFlag;

typedef enum
{
    CLRDATA_METHDEF_IL
} CLRDataMethodDefinitionExtentType;

typedef struct
{
    CLRDATA_ADDRESS startAddress;
    CLRDATA_ADDRESS endAddress;
    ULONG32 enCVersion;
    CLRDataMethodDefinitionExtentType type;
} CLRDATA_METHDEF_EXTENT;

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning 28718 for interface IXCLRDataMethodDefinition */
[
    object,
    local,
    uuid(AAF60008-FB2C-420b-8FB1-42D244A54A97)
]
interface IXCLRDataMethodDefinition : IUnknown
{
    /*
     * Get the type this method is part of.
     */
    HRESULT GetTypeDefinition([out] IXCLRDataTypeDefinition **typeDefinition);

    /*
     * Enumerate instances of this definition.
     */
    HRESULT StartEnumInstances([in] IXCLRDataAppDomain* appDomain,
                               [out] CLRDATA_ENUM* handle);
    HRESULT EnumInstance([in, out] CLRDATA_ENUM* handle,
                         [out] IXCLRDataMethodInstance **instance);
    HRESULT EndEnumInstances([in] CLRDATA_ENUM handle);

    /*
     * Get the method's name.
     */
    HRESULT GetName([in] ULONG32 flags,
                    [in] ULONG32 bufLen,
                    [out] ULONG32 *nameLen,
                    [out, size_is(bufLen)] WCHAR name[]);

    /*
     * Get the metadata token and scope.
     */
    HRESULT GetTokenAndScope([out] mdMethodDef* token,
                             [out] IXCLRDataModule **mod);

    /*
     * Get state flags, defined in CLRDataMethodFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);

    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataMethodDefinition* method);
    
    /*
     * Get the latest EnC version of this method.
     */
    HRESULT GetLatestEnCVersion([out] ULONG32* version);
    
    /*
     * Get the IL code regions associated with this method.
     */
    HRESULT StartEnumExtents([out] CLRDATA_ENUM* handle);
    HRESULT EnumExtent([in, out] CLRDATA_ENUM* handle,
                       [out] CLRDATA_METHDEF_EXTENT* extent);
    HRESULT EndEnumExtents([in] CLRDATA_ENUM handle);
    
    /*
     * Request notification when code is generated or
     * discarded for the method.
     */
    HRESULT GetCodeNotification([out] ULONG32* flags);
    HRESULT SetCodeNotification([in] ULONG32 flags);
    
    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Gets the most representative start address of
     * the native code for this method.
     * A method may have multiple entry points, so this
     * address is not guaranteed to be hit by all entries.
     * Requires revision 1.
     */
    HRESULT GetRepresentativeEntryAddress([out] CLRDATA_ADDRESS* addr);

    HRESULT HasClassOrMethodInstantiation([out] BOOL* bGeneric);
}
#pragma warning(pop)

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning 28718 for interface IXCLRDataMethodInstance */
[
    object,
    local,
    uuid(ECD73800-22CA-4b0d-AB55-E9BA7E6318A5)
]
interface IXCLRDataMethodInstance : IUnknown
{
    /*
     * Get the type instance for this method.
     */
    HRESULT GetTypeInstance([out] IXCLRDataTypeInstance **typeInstance);

    /*
     * Get the definition that matches this instance.
     */
    HRESULT GetDefinition([out] IXCLRDataMethodDefinition **methodDefinition);

    /*
     * Get the metadata token and scope.
     */
    HRESULT GetTokenAndScope([out] mdMethodDef* token,
                             [out] IXCLRDataModule **mod);

    /*
     * Get the fully qualified name for this method instance.
     */
    HRESULT GetName([in] ULONG32 flags,
                    [in] ULONG32 bufLen,
                    [out] ULONG32 *nameLen,
                    [out, size_is(bufLen)] WCHAR nameBuf[]);

    /*
     * Get state flags, defined in CLRDataMethodFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);
    
    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataMethodInstance* method);
    
    /*
     * Get the EnC version of this instance.
     */
    HRESULT GetEnCVersion([out] ULONG32* version);
    
    /*
     * Enumerate this method's parameterization.
     */
    HRESULT GetNumTypeArguments([out] ULONG32* numTypeArgs);
    HRESULT GetTypeArgumentByIndex([in] ULONG32 index,
                                   [out] IXCLRDataTypeInstance** typeArg);

    /*
     * Access the IL <-> address mapping information.
     */
    HRESULT GetILOffsetsByAddress([in] CLRDATA_ADDRESS address,
                                  [in] ULONG32 offsetsLen,
                                  [out] ULONG32 *offsetsNeeded,
                                  [out, size_is(offsetsLen)] 
                                  ULONG32 ilOffsets[]);
    HRESULT GetAddressRangesByILOffset([in] ULONG32 ilOffset,
                                       [in] ULONG32 rangesLen,
                                       [out] ULONG32 *rangesNeeded,
                                       [out, size_is(rangesLen)] 
                                       CLRDATA_ADDRESS_RANGE addressRanges[]);
    HRESULT GetILAddressMap([in] ULONG32 mapLen,
                            [out] ULONG32 *mapNeeded,
                            [out, size_is(mapLen)]
                            CLRDATA_IL_ADDRESS_MAP maps[]);

    /*
     * Get the native code regions associated with this method.
     */
    HRESULT StartEnumExtents([out] CLRDATA_ENUM* handle);
    HRESULT EnumExtent([in, out] CLRDATA_ENUM* handle,
                       [out] CLRDATA_ADDRESS_RANGE* extent);
    HRESULT EndEnumExtents([in] CLRDATA_ENUM handle);
    
    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Gets the most representative start address of
     * the native code for this method.
     * A method may have multiple entry points, so this
     * address is not guaranteed to be hit by all entries.
     * Requires revision 1.
     */
    HRESULT GetRepresentativeEntryAddress([out] CLRDATA_ADDRESS* addr);
}
#pragma warning(pop)

typedef enum
{
    CLRDATA_TASK_DEFAULT        = 0x00000000,
    CLRDATA_TASK_WAITING_FOR_GC = 0x00000001,
} CLRDataTaskFlag;

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning 28718 for interface IXCLRDataMethodInstance */
/*
 * Interface representing a task (thread or fiber) in the process.
 */
[
    object,
    local,
    uuid(A5B0BEEA-EC62-4618-8012-A24FFC23934C)
]
interface IXCLRDataTask : IUnknown
{
    /* 
     * Get the process for this task. 
     */
    HRESULT GetProcess([out] IXCLRDataProcess** process);

    /*
     * Get the application domain that the task is
     * currently running in.  This can change over time.
     */
    HRESULT GetCurrentAppDomain([out] IXCLRDataAppDomain **appDomain);

    /* 
     * Get a unique, stable identifier for this task.
     */
    HRESULT GetUniqueID([out] ULONG64* id);

    /*
     * Get state flags, defined in CLRDataTaskFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);

    /*
     * Determine whether the given interface represents
     * the same target state.
     */
    HRESULT IsSameObject([in] IXCLRDataTask* task);
    
    /*
     * Get the managed object representing the task.
     */
    HRESULT GetManagedObject([out] IXCLRDataValue** value);
    
    /*
     * Mark the task so that it attempts to reach the
     * given execution state the next time it executes.
     */
    HRESULT GetDesiredExecutionState([out] ULONG32* state);
    HRESULT SetDesiredExecutionState([in] ULONG32 state);
    
    /*
     * Create a stack walker to walk this task's stack. The
     * flags parameter takes a bitfield of values from the
     * CLRDataSimpleFrameType enum.
     */
    HRESULT CreateStackWalk([in] ULONG32 flags,
                            [out] IXCLRDataStackWalk** stackWalk);

    /* 
     * Get the current OS thread ID for this task. If this task is on a fiber,
     * the ID may change over time. 
     */
    HRESULT GetOSThreadID([out] ULONG32* id);

    /* 
     * Get the current context for this task, controlled by the given flags.
     * Returns S_FALSE if the size is not large enough.
     */
    HRESULT GetContext([in] ULONG32 contextFlags,
                       [in] ULONG32 contextBufSize,
                       [out] ULONG32* contextSize,
                       [out, size_is(contextBufSize)] BYTE contextBuf[]);

    /* 
     * Destructively set the current context for this task.
     */
    HRESULT SetContext([in] ULONG32 contextSize,
                       [in, size_is(contextSize)] BYTE context[]);

    /*
     * Get the current exception state for the
     * task, if any.  This may be the first element
     * in a list of exception states if there are
     * nested exceptions.
     */
    HRESULT GetCurrentExceptionState([out] IXCLRDataExceptionState **exception);

    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Get the task's name if it has one.
     * Requires revision 1.
     */
    HRESULT GetName([in] ULONG32 bufLen,
                    [out] ULONG32 *nameLen,
                    [out, size_is(bufLen)] WCHAR name[]);

    /*
     * Get the last exception state for the
     * task, if any.  If an exception is currently
     * being processed the last exception state may
     * be the same as the current exception state.
     * Requires revision 2.
     */
    HRESULT GetLastExceptionState([out] IXCLRDataExceptionState **exception);
}
#pragma warning(pop)

typedef enum
{
    /* Frame not recognized */
    CLRDATA_SIMPFRAME_UNRECOGNIZED = 0x1,               

    /* Frame corresponds to a managed method */
    CLRDATA_SIMPFRAME_MANAGED_METHOD = 0x2,     

    /* Frame corresponds to runtime-controlled managed code */
    CLRDATA_SIMPFRAME_RUNTIME_MANAGED_CODE = 0x4,

    /* Frame corresponds to runtime-controlled unmanaged code */
    CLRDATA_SIMPFRAME_RUNTIME_UNMANAGED_CODE = 0x8
} CLRDataSimpleFrameType;

typedef enum
{
    /* These are tentative values...they will likely change as
     * implementation progresses. */
    CLRDATA_DETFRAME_UNRECOGNIZED,
    CLRDATA_DETFRAME_UNKNOWN_STUB,
    CLRDATA_DETFRAME_CLASS_INIT,
    CLRDATA_DETFRAME_EXCEPTION_FILTER,
    CLRDATA_DETFRAME_SECURITY,
    CLRDATA_DETFRAME_CONTEXT_POLICY,
    CLRDATA_DETFRAME_INTERCEPTION, 
    CLRDATA_DETFRAME_PROCESS_START,
    CLRDATA_DETFRAME_THREAD_START,
    CLRDATA_DETFRAME_TRANSITION_TO_MANAGED,
    CLRDATA_DETFRAME_TRANSITION_TO_UNMANAGED,
    CLRDATA_DETFRAME_COM_INTEROP_STUB,
    CLRDATA_DETFRAME_DEBUGGER_EVAL,
    CLRDATA_DETFRAME_CONTEXT_SWITCH,
    CLRDATA_DETFRAME_FUNC_EVAL,
    CLRDATA_DETFRAME_FINALLY
    /* There will be others */
} CLRDataDetailedFrameType;

/*
 * StackWalk requests.
 */

typedef enum
{
    CLRDATA_STACK_WALK_REQUEST_SET_FIRST_FRAME = 0xe1000000,
} CLRDataStackWalkRequest;

/*
 * SetContext flags.
 */

typedef enum
{
    /* Context being set is the result of stack unwinding. */
    CLRDATA_STACK_SET_UNWIND_CONTEXT  = 0x00000000,
    /* Context being set is the "current" context. */
    CLRDATA_STACK_SET_CURRENT_CONTEXT = 0x00000001,
} CLRDataStackSetContextFlag;

/*
 * Stack-walker interface.
 */
[
    object,
    local,
    uuid(E59D8D22-ADA7-49a2-89B5-A415AFCFC95F)
]
interface IXCLRDataStackWalk : IUnknown
{
    /* 
     * Get the current context of this stack walk.
     * This is the original context with any unwinding
     * applied to it.  As unwinding may only restore
     * a subset of the registers, such as only non-volatile
     * registers, the context may not exactly match the
     * register state at the time of the actual call.
     */
    HRESULT GetContext([in] ULONG32 contextFlags,
                       [in] ULONG32 contextBufSize,
                       [out] ULONG32* contextSize,
                       [out, size_is(contextBufSize)] BYTE contextBuf[]);

    /* 
     * Change the current context of this stack walk, allowing the
     * debugger to move it to an arbitrary context. Does not actually
     * alter the current context of the thread whose stack is being walked.
     * OBSOLETE: Use SetContext2.
     */
    HRESULT SetContext([in] ULONG32 contextSize,
                       [in, size_is(contextSize)] BYTE context[]);

    /*
     * Attempt to advance the stack walk to the next frame that
     * matches the stack walk's filter. If the current frame type is
     * CLRDATA_UNRECOGNIZED_FRAME, Next() will be unable to
     * advance. (The debugger will have to walk the unrecognized frame
     * itself, reset the walk's context, and try again.)
     *
     * Upon creation, the stack walk is positioned "before" the first
     * frame on the stack.  Debuggers must call Next() to advance to
     * the first frame before any other functions will work. The
     * function will output S_FALSE when there are no more frames that
     * meet its filter criteria.
     */
    HRESULT Next();

    /*
     * Return the number of bytes skipped by the last call to Next().
     * If Next() moved to the very next frame, outputs 0.
     *
     * Note that calling GetStackSizeSkipped() after any function other
     * than Next() has no meaning.
     */
    HRESULT GetStackSizeSkipped([out] ULONG64* stackSizeSkipped);

    /* 
     * Return information about the type of the current frame
     */
    HRESULT GetFrameType([out] CLRDataSimpleFrameType* simpleType,
                         [out] CLRDataDetailedFrameType* detailedType);

    /*
     * Return the current frame, if it is recognized.
     */
    HRESULT GetFrame([out] IXCLRDataFrame** frame);

    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /* 
     * Change the current context of this stack walk, allowing the
     * debugger to move it to an arbitrary context. Does not actually
     * alter the current context of the thread whose stack is being walked.
     */
    HRESULT SetContext2([in] ULONG32 flags,
                        [in] ULONG32 contextSize,
                        [in, size_is(contextSize)] BYTE context[]);
}

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning 28718 for interface IXCLRDataFrame */
[
    object,
    local,
    uuid(271498C2-4085-4766-BC3A-7F8ED188A173)
]
interface IXCLRDataFrame : IUnknown
{
    /* 
     * Return information about the type of this frame.
     */
    HRESULT GetFrameType([out] CLRDataSimpleFrameType* simpleType,
                         [out] CLRDataDetailedFrameType* detailedType);

    /* 
     * Get the stack walk context as of this frame.
     * This is the original context with any unwinding
     * applied to it.  As unwinding may only restore
     * a subset of the registers, such as only non-volatile
     * registers, the context may not exactly match the
     * register state at the time of the actual call.
     */
    HRESULT GetContext([in] ULONG32 contextFlags,
                       [in] ULONG32 contextBufSize,
                       [out] ULONG32* contextSize,
                       [out, size_is(contextBufSize)] BYTE contextBuf[]);

    /*
     * Return the app domain of this frame
     */
    HRESULT GetAppDomain([out] IXCLRDataAppDomain** appDomain);

    /*
     * Return the number of arguments on the stack.
     */
    HRESULT GetNumArguments([out] ULONG32* numArgs);

    /*
     * Return an argument by (0-based) index.
     * The name parameter is filled in if name information is availble.
     */
    HRESULT GetArgumentByIndex([in] ULONG32 index,
                               [out] IXCLRDataValue** arg,
                               [in] ULONG32 bufLen,
                               [out] ULONG32 *nameLen,
                               [out, size_is(bufLen)] WCHAR name[]);

    /*
     * Return the number of local variables on the stack.
     */
    HRESULT GetNumLocalVariables([out] ULONG32* numLocals);

    /*
     * Return a local variable by (0-based) index.
     * The name parameter is filled in if name information is availble.
     */
    HRESULT GetLocalVariableByIndex([in] ULONG32 index,
                                    [out] IXCLRDataValue** localVariable,
                                    [in] ULONG32 bufLen,
                                    [out] ULONG32 *nameLen,
                                    [out, size_is(bufLen)] WCHAR name[]);

    /*
     * Get a name for the frame's current instruction pointer.
     * This is either a method's name or a runtime code name.
     *
     * Returns S_FALSE if the buffer is not large enough for the name,
     * and sets nameLen to be the buffer length needed.
     */
    HRESULT GetCodeName([in] ULONG32 flags,
                        [in] ULONG32 bufLen,
                        [out] ULONG32 *nameLen,
                        [out, size_is(bufLen)] WCHAR nameBuf[]);

    /*
     * Gets the method instance corresponding to this frame.
     */
    HRESULT GetMethodInstance([out] IXCLRDataMethodInstance** method);

    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);
    
    /*
     * Enumerate the full parameterization of the frame's
     * type and method.
     */
    HRESULT GetNumTypeArguments([out] ULONG32* numTypeArgs);
    HRESULT GetTypeArgumentByIndex([in] ULONG32 index,
                                   [out] IXCLRDataTypeInstance** typeArg);
}
#pragma warning(pop)

[
    object,
    local,
    uuid(1C4D9A4B-702D-4CF6-B290-1DB6F43050D0)
]
interface IXCLRDataFrame2 : IUnknown
{
    /* 
     * Retun generic token if available.
     */
    HRESULT GetExactGenericArgsToken([out] IXCLRDataValue** genericToken);
}

typedef enum
{
    CLRDATA_EXCEPTION_DEFAULT = 0x00000000,

    // Exception is occurring during processing
    // of other exception states.
    CLRDATA_EXCEPTION_NESTED  = 0x00000001,

    // Exception state is not completely available.
    // This can happen when the state is no longer
    // active or before a state is fully initialized.
    CLRDATA_EXCEPTION_PARTIAL = 0x00000002,
} CLRDataExceptionStateFlag;

typedef enum
{
    CLRDATA_EXBASE_EXCEPTION,
    CLRDATA_EXBASE_OUT_OF_MEMORY,
    CLRDATA_EXBASE_INVALID_ARGUMENT,
} CLRDataBaseExceptionType;

typedef enum
{
    CLRDATA_EXSAME_SECOND_CHANCE = 0x00000000,
    CLRDATA_EXSAME_FIRST_CHANCE  = 0x00000001,
} CLRDataExceptionSameFlag;

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning 28718 for inteface IXCLRDataExceptionState */
[
    object,
    local,
    uuid(75DA9E4C-BD33-43C8-8F5C-96E8A5241F57)
]
interface IXCLRDataExceptionState : IUnknown
{
    /*
     * Get state flags, defined in CLRDataExceptionStateFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);
    
    /*
     * For nested exceptions, get the exception that
     * was being handled when this exception occurred.
     */
    HRESULT GetPrevious([out] IXCLRDataExceptionState** exState);

    /*
     * Get the managed object representing the exception.
     */
    HRESULT GetManagedObject([out] IXCLRDataValue** value);
    
    /*
     * Get the standard base type of the exception.
     */
    HRESULT GetBaseType([out] CLRDataBaseExceptionType* type);

    /*
     * Get exception information.
     */
    HRESULT GetCode([out] ULONG32* code);
    HRESULT GetString([in] ULONG32 bufLen,
                      [out] ULONG32 *strLen,
                      [out, size_is(bufLen)] WCHAR str[]);
    
    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Determine whether the given interface represents
     * the same exception state.
     * OBSOLETE: Use IsSameState2.
     * Requires revision 1.
     */
    HRESULT IsSameState([in] EXCEPTION_RECORD64* exRecord,
                        [in] ULONG32 contextSize,
                        [in, size_is(contextSize)] BYTE cxRecord[]);

    /*
     * Determine whether the given interface represents
     * the same exception state.
     * Requires revision 2.
     */
    HRESULT IsSameState2([in] ULONG32 flags,
                         [in] EXCEPTION_RECORD64* exRecord,
                         [in] ULONG32 contextSize,
                         [in, size_is(contextSize)] BYTE cxRecord[]);

    /*
     * Gets the task this exception state is associated with.
     * Requires revision 2.
     */
    HRESULT GetTask([out] IXCLRDataTask** task);
}
#pragma warning(pop)

typedef enum
{
    CLRDATA_VLOC_MEMORY   = 0x00000000,
    CLRDATA_VLOC_REGISTER = 0x00000001,
} ClrDataValueLocationFlag;

#pragma warning(push)
#pragma warning(disable:28718)	/* suppress warning 28718 for interface IXCLRDataValue */
/*
 * Object inspection interface.
 */
[
    object,
    local,
    uuid(96EC93C7-1000-4e93-8991-98D8766E6666)
]
interface IXCLRDataValue : IUnknown
{
    /*
     * Get state flags, defined in CLRDataValueFlag.
     */
    HRESULT GetFlags([out] ULONG32* flags);
    
    /*
     * Get the address of the object.
     * Fails unless the object is a single contiguous
     * piece of data in memory.
     * OBSOLETE: Use GetLocation instead.
     */
    HRESULT GetAddress([out] CLRDATA_ADDRESS* address);

    /*
     * Return the size (in bytes) of the object.
     */
    HRESULT GetSize([out] ULONG64* size);

    /*
     * Copy between an object and a buffer.
     * Returns S_FALSE if the buffer was not at least as large
     * as the object.
     */
    HRESULT GetBytes([in] ULONG32 bufLen,
                     [out] ULONG32 *dataSize,
                     [out, size_is(bufLen)] BYTE buffer[]);
    HRESULT SetBytes([in] ULONG32 bufLen,
                     [out] ULONG32 *dataSize,
                     [in, size_is(bufLen)] BYTE buffer[]);

    /*
     * Get the type of the object
     */
    HRESULT GetType([out] IXCLRDataTypeInstance **typeInstance);

    /* 
     * Get the number of fields in the object.
     * OBSOLETE: Use GetNumFields2.
     */
    HRESULT GetNumFields([out] ULONG32 *numFields);

    /* 
     * Gets one field of the object.
     *
     * Because field ordering is not fixed, can also return name
     * information and/or the metadata token, if the caller passes in
     * appropriate values.
     * OBSOLETE: Use EnumField.
     */
    HRESULT GetFieldByIndex([in] ULONG32 index,
                            [out] IXCLRDataValue **field,
                            [in] ULONG32 bufLen,
                            [out] ULONG32 *nameLen,
                            [out, size_is(bufLen)] WCHAR nameBuf[],
                            [out] mdFieldDef* token);

    HRESULT Request([in] ULONG32 reqCode,
                    [in] ULONG32 inBufferSize,
                    [in, size_is(inBufferSize)] BYTE* inBuffer,
                    [in] ULONG32 outBufferSize,
                    [out, size_is(outBufferSize)] BYTE* outBuffer);

    /*
     * Get the number of fields in the value.
     * If a type is passed in only fields defined
     * by that type are enumerated.
     */
    HRESULT GetNumFields2([in] ULONG32 flags,
                          [in] IXCLRDataTypeInstance* fromType,
                          [out] ULONG32* numFields);

    /*
     * Enumerate the fields for this value.
     * If a type is passed in only fields defined
     * by that type are enumerated.
     */
    HRESULT StartEnumFields([in] ULONG32 flags,
                            [in] IXCLRDataTypeInstance* fromType,
                            [out] CLRDATA_ENUM* handle);
    HRESULT EnumField([in, out] CLRDATA_ENUM* handle,
                      [out] IXCLRDataValue** field,
                      [in] ULONG32 nameBufLen,
                      [out] ULONG32* nameLen,
                      [out, size_is(nameBufLen)] WCHAR nameBuf[],
                      [out] mdFieldDef* token);
    HRESULT EndEnumFields([in] CLRDATA_ENUM handle);

    HRESULT StartEnumFieldsByName([in] LPCWSTR name,
                                  [in] ULONG32 nameFlags,
                                  [in] ULONG32 fieldFlags,
                                  [in] IXCLRDataTypeInstance* fromType,
                                  [out] CLRDATA_ENUM* handle);
    HRESULT EnumFieldByName([in, out] CLRDATA_ENUM* handle,
                            [out] IXCLRDataValue** field,
                            [out] mdFieldDef* token);
    HRESULT EndEnumFieldsByName([in] CLRDATA_ENUM handle);

    /*
     * Retrieve a field by field metadata token.
     */
    HRESULT GetFieldByToken([in] mdFieldDef token,
                            [out] IXCLRDataValue **field,
                            [in] ULONG32 bufLen,
                            [out] ULONG32 *nameLen,
                            [out, size_is(bufLen)] WCHAR nameBuf[]);

    /*
     * Get the value implicitly associated with this value.
     * For pointers or reference values this is the value
     *   pointed/referred to.
     * For boxed values this is the contained value.
     * For other values there is no associated value.
     */
    HRESULT GetAssociatedValue([out] IXCLRDataValue** assocValue);

    /*
     * Get the type implicitly associated with this value.
     * For pointers or reference types this is the type
     *   pointed/referred to.
     * For boxed values this is the type of the contained value.
     * For arrays this is the element type.
     * For other values there is no associated type.
     */
    HRESULT GetAssociatedType([out] IXCLRDataTypeInstance** assocType);
    
    /*
     * String methods that only work for string data values.
     */

    /* 
     * Return the length and contents of the string.
     */
    HRESULT GetString([in] ULONG32 bufLen,
                      [out] ULONG32 *strLen,
                      [out, size_is(bufLen)] WCHAR str[]);

    /*
     * Array methods that only work for array data values.
     */

    /*
     * Return the definition of the array.
     */
    HRESULT GetArrayProperties([out] ULONG32 *rank,
                               [out] ULONG32 *totalElements,
                               [in] ULONG32 numDim,
                               [out, size_is(numDim)] ULONG32 dims[],
                               [in] ULONG32 numBases,
                               [out, size_is(numBases)] LONG32 bases[]);

    /*
     * Return a value representing the given element in the array.
     */
    HRESULT GetArrayElement([in] ULONG32 numInd,
                            [in, size_is(numInd)] LONG32 indices[],
                            [out] IXCLRDataValue **value);

    HRESULT EnumField2([in, out] CLRDATA_ENUM* handle,
                       [out] IXCLRDataValue** field,
                       [in] ULONG32 nameBufLen,
                       [out] ULONG32* nameLen,
                       [out, size_is(nameBufLen)] WCHAR nameBuf[],
                       [out] IXCLRDataModule** tokenScope,
                       [out] mdFieldDef* token);
    HRESULT EnumFieldByName2([in, out] CLRDATA_ENUM* handle,
                             [out] IXCLRDataValue** field,
                             [out] IXCLRDataModule** tokenScope,
                             [out] mdFieldDef* token);
    HRESULT GetFieldByToken2([in] IXCLRDataModule* tokenScope,
                             [in] mdFieldDef token,
                             [out] IXCLRDataValue **field,
                             [in] ULONG32 bufLen,
                             [out] ULONG32 *nameLen,
                             [out, size_is(bufLen)] WCHAR nameBuf[]);

    /*
     * Returns the locations the value's
     * data is spread across.
     * Placeholder values, such as values for variables
     * which are dead, may not have any locations.
     * Memory locations return the memory address in arg.
     * Register locations do not return an indication
     * of which register.
     * Requires revision 3.
     */
    HRESULT GetNumLocations([out] ULONG32* numLocs);
    HRESULT GetLocationByIndex([in] ULONG32 loc,
                               [out] ULONG32* flags,
                               [out] CLRDATA_ADDRESS* arg);
}
#pragma warning(pop)

[
    object,
    local,
    uuid(2D95A079-42A1-4837-818F-0B97D7048E0E)
]
interface IXCLRDataExceptionNotification : IUnknown
{
    /*
     * New code was generated or discarded for a method.
     */
    HRESULT OnCodeGenerated([in] IXCLRDataMethodInstance* method);
    HRESULT OnCodeDiscarded([in] IXCLRDataMethodInstance* method);

    /*
     * The process or task reached the desired execution state.
     */
    HRESULT OnProcessExecution([in] ULONG32 state);
    HRESULT OnTaskExecution([in] IXCLRDataTask* task,
                            [in] ULONG32 state);

    /*
     * The given module was loaded or unloaded.
     */
    HRESULT OnModuleLoaded([in] IXCLRDataModule* mod);
    HRESULT OnModuleUnloaded([in] IXCLRDataModule* mod);

    /*
     * The given type was loaded or unloaded.
     */
    HRESULT OnTypeLoaded([in] IXCLRDataTypeInstance* typeInst);
    HRESULT OnTypeUnloaded([in] IXCLRDataTypeInstance* typeInst);
}

[
    object,
    local,
    uuid(31201a94-4337-49b7-aef7-0c755054091f)
]
interface IXCLRDataExceptionNotification2 : IXCLRDataExceptionNotification
{
    /*
     * The given app domain was loaded or unloaded.
     */
    HRESULT OnAppDomainLoaded([in] IXCLRDataAppDomain* domain);
    HRESULT OnAppDomainUnloaded([in] IXCLRDataAppDomain* domain);

    /*
     * A managed exception has been raised.
     */
    HRESULT OnException([in] IXCLRDataExceptionState* exception);
}

[
    object,
    local,
    uuid(31201a94-4337-49b7-aef7-0c7550540920)
]
interface IXCLRDataExceptionNotification3 : IXCLRDataExceptionNotification2
{
    /*
     * The specified GC event was triggered.  The GC event is passed in an 
     * opaque structure, whose structure is given by buffSize
     */
    HRESULT OnGcEvent([in] GcEvtArgs gcEvtArgs);
}

[
    object,
    local,
    uuid(C25E926E-5F09-4AA2-BBAD-B7FC7F10CFD7)
]
interface IXCLRDataExceptionNotification4 : IXCLRDataExceptionNotification3
{
    /*
     * A managed catch clause is about to be executed
     */
    HRESULT ExceptionCatcherEnter([in] IXCLRDataMethodInstance* catchingMethod, DWORD catcherNativeOffset);
}