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custattr_emit.cpp
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custattr_emit.cpp
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
//*****************************************************************************
// CustAttr_Emit.cpp
//
//
// Implementation for the meta data custom attribute emit code (code:IMetaDataEmit).
//
//*****************************************************************************
#include "stdafx.h"
#include "regmeta.h"
#include "metadata.h"
#include "corerror.h"
#include "mdutil.h"
#include "rwutil.h"
#include "mdlog.h"
#include "importhelper.h"
#include "posterror.h"
#include "cahlprinternal.h"
#include "custattr.h"
#include "corhdr.h"
#include <metamodelrw.h>
#ifdef FEATURE_METADATA_EMIT
//*****************************************************************************
//*****************************************************************************
// Support for "Pseudo Custom Attributes"
//*****************************************************************************
// Enumeration of known custom attributes.
//*****************************************************************************
#define KnownCaList() \
KnownCa(UNKNOWN) \
KnownCa(DllImportAttribute) \
KnownCa(GuidAttribute) \
KnownCa(ComImportAttribute) \
KnownCa(InterfaceTypeAttribute) \
KnownCa(ClassInterfaceAttribute) \
KnownCa(SerializableAttribute) \
KnownCa(NonSerializedAttribute) \
KnownCa(MethodImplAttribute1) \
KnownCa(MethodImplAttribute2) \
KnownCa(MethodImplAttribute3) \
KnownCa(MarshalAsAttribute1) \
KnownCa(MarshalAsAttribute2) \
KnownCa(PreserveSigAttribute) \
KnownCa(InAttribute) \
KnownCa(OutAttribute) \
KnownCa(OptionalAttribute) \
KnownCa(StructLayoutAttribute1) \
KnownCa(StructLayoutAttribute2) \
KnownCa(FieldOffsetAttribute) \
KnownCa(TypeLibVersionAttribute) \
KnownCa(ComCompatibleVersionAttribute) \
KnownCa(SpecialNameAttribute) \
KnownCa(AllowPartiallyTrustedCallersAttribute) \
KnownCa(WindowsRuntimeImportAttribute) \
// Ids for the CA's. CA_DllImportAttribute, etc.
#define KnownCa(x) CA_##x,
enum {
KnownCaList()
CA_COUNT
};
//*****************************************************************************
// Properties of the known custom attributes.
//
// These tables describe the known custom attributes. For each custom
// attribute, we know the namespace and name of the custom attribute,
// the types to which the CA applies, the ctor args, and possible named
// args. There is a flag which specifies whether the custom attribute
// should be kept, in addition to any processing done with the data.
//*****************************************************************************
const BOOL bKEEPCA = TRUE;
const BOOL bDONTKEEPCA = FALSE;
const BOOL bMATCHBYSIG = TRUE;
const BOOL bMATCHBYNAME = FALSE;
struct KnownCaProp
{
LPCUTF8 szNamespace; // Namespace of the custom attribute.
LPCUTF8 szName; // Name of the custom attribute.
const mdToken * rTypes; // Types that the CA applies to.
BOOL bKeepCa; // Keep the CA after processing?
const CaArg * pArgs; // List of ctor argument descriptors.
ULONG cArgs; // Count of ctor argument descriptors.
const CaNamedArg * pNamedArgs; // List of named arg descriptors.
ULONG cNamedArgs; // Count of named arg descriptors.
BOOL bMatchBySig; // For overloads; match by sig, not just name.
// WARNING: All overloads need the flag!
};
// Recognized targets for known custom attributes.
// If Target includes mdtAssembly, then make sure to include mdtTypeRef as well,
// aLink uses mdtTypeRef target temporarily for assembly target attributes
const mdToken DllImportTargets[] = {mdtMethodDef, (ULONG32) -1};
const mdToken GuidTargets[] = {mdtTypeDef, mdtTypeRef, mdtModule, mdtAssembly, (ULONG32) -1};
const mdToken ComImportTargets[] = {mdtTypeDef, (ULONG32) -1};
const mdToken InterfaceTypeTargets[] = {mdtTypeDef, (ULONG32) -1};
const mdToken ClassInterfaceTargets[] = {mdtTypeDef, mdtAssembly, mdtTypeRef, (ULONG32) -1};
const mdToken SerializableTargets[] = {mdtTypeDef, (ULONG32) -1};
const mdToken NotInGCHeapTargets[] = {mdtTypeDef, (ULONG32) -1};
const mdToken NonSerializedTargets[] = {mdtFieldDef, (ULONG32) -1};
const mdToken MethodImplTargets[] = {mdtMethodDef, (ULONG32) -1};
const mdToken MarshalTargets[] = {mdtFieldDef, mdtParamDef, mdtProperty, (ULONG32) -1};
const mdToken PreserveSigTargets[] = {mdtMethodDef, (ULONG32) -1};
const mdToken InOutTargets[] = {mdtParamDef, (ULONG32) -1};
const mdToken StructLayoutTargets[] = {mdtTypeDef, (ULONG32) -1};
const mdToken FieldOffsetTargets[] = {mdtFieldDef, (ULONG32) -1};
const mdToken TypeLibVersionTargets[] = {mdtAssembly, mdtTypeRef,(ULONG32) -1};
const mdToken ComCompatibleVersionTargets[] = {mdtAssembly, mdtTypeRef, (ULONG32) -1};
const mdToken SpecialNameTargets[] = {mdtTypeDef, mdtMethodDef, mdtFieldDef, mdtProperty, mdtEvent, (ULONG32) -1};
const mdToken AllowPartiallyTrustedCallersTargets[] = {mdtAssembly, mdtTypeRef, (ULONG32) -1};
const mdToken WindowsRuntimeImportTargets[] = {mdtTypeDef, (ULONG32) -1};
//#ifndef CEE_CALLCONV
// # define CEE_CALLCONV (IMAGE_CEE_CS_CALLCONV_DEFAULT | IMAGE_CEE_CS_CALLCONV_HASTHIS)
//#endif
#define DEFINE_CA_CTOR_ARGS(NAME) \
const CaArg r##NAME##Args[] = \
{
#define DEFINE_CA_CTOR_ARG(TYPE) {{TYPE}},
#define DEFINE_CA_CTOR_ARGS_END() \
};
#define DEFINE_CA_NAMED_ARGS(NAME) \
const CaNamedArg r##NAME##NamedArgs[] = \
{
#define DEFINE_CA_NAMED_ARG(NAME, PROPORFIELD, TYPE, ARRAYTYPE, ENUMTYPE, ENUMNAME) \
{ NAME, sizeof(NAME) - 1, PROPORFIELD, { TYPE, ARRAYTYPE, ENUMTYPE, ENUMNAME, sizeof(ENUMNAME) - 1 } },
#define DEFINE_CA_NAMED_PROP_I4ENUM(NAME, ENUM) \
DEFINE_CA_NAMED_ARG(NAME, SERIALIZATION_TYPE_PROPERTY, SERIALIZATION_TYPE_ENUM, SERIALIZATION_TYPE_UNDEFINED, SERIALIZATION_TYPE_I4, ENUM)
#define DEFINE_CA_NAMED_FIELD_I4ENUM(NAME, ENUM) \
DEFINE_CA_NAMED_ARG(NAME, SERIALIZATION_TYPE_FIELD, SERIALIZATION_TYPE_ENUM, SERIALIZATION_TYPE_UNDEFINED, SERIALIZATION_TYPE_I4, ENUM)
#define DEFINE_CA_NAMED_PROP(NAME, TYPE) \
DEFINE_CA_NAMED_ARG(NAME, SERIALIZATION_TYPE_PROPERTY, TYPE, SERIALIZATION_TYPE_UNDEFINED, SERIALIZATION_TYPE_UNDEFINED, "")
#define DEFINE_CA_NAMED_FIELD(NAME, TYPE) \
DEFINE_CA_NAMED_ARG(NAME, SERIALIZATION_TYPE_FIELD, TYPE, SERIALIZATION_TYPE_UNDEFINED, SERIALIZATION_TYPE_UNDEFINED, "")
#define DEFINE_CA_NAMED_PROP_BOOL(NAME) DEFINE_CA_NAMED_PROP(NAME, SERIALIZATION_TYPE_BOOLEAN)
#define DEFINE_CA_NAMED_FIELD_BOOL(NAME) DEFINE_CA_NAMED_FIELD(NAME, SERIALIZATION_TYPE_BOOLEAN)
#define DEFINE_CA_NAMED_PROP_STRING(NAME) DEFINE_CA_NAMED_PROP(NAME, SERIALIZATION_TYPE_STRING)
#define DEFINE_CA_NAMED_FIELD_STRING(NAME) DEFINE_CA_NAMED_FIELD(NAME, SERIALIZATION_TYPE_STRING)
#define DEFINE_CA_NAMED_PROP_TYPE(NAME) DEFINE_CA_NAMED_PROP(NAME, SERIALIZATION_TYPE_TYPE)
#define DEFINE_CA_NAMED_FIELD_TYPE(NAME) DEFINE_CA_NAMED_FIELD(NAME, SERIALIZATION_TYPE_TYPE)
#define DEFINE_CA_NAMED_PROP_I2(NAME) DEFINE_CA_NAMED_PROP(NAME, SERIALIZATION_TYPE_I2)
#define DEFINE_CA_NAMED_FIELD_I2(NAME) DEFINE_CA_NAMED_FIELD(NAME, SERIALIZATION_TYPE_I2)
#define DEFINE_CA_NAMED_PROP_I4(NAME) DEFINE_CA_NAMED_PROP(NAME, SERIALIZATION_TYPE_I4)
#define DEFINE_CA_NAMED_FIELD_I4(NAME) DEFINE_CA_NAMED_FIELD(NAME, SERIALIZATION_TYPE_I4)
#define DEFINE_CA_NAMED_ARGS_END() \
};
//-----------------------------------------------------------------------------
// index 0 is used as a placeholder.
const KnownCaProp UNKNOWNProps = {0};
//-----------------------------------------------------------------------------
// DllImport args, named args, and known attribute properties.
DEFINE_CA_CTOR_ARGS(DllImportAttribute)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_STRING)
DEFINE_CA_CTOR_ARGS_END()
// NOTE: Keep this enum in sync with the array of named arguments.
enum DllImportNamedArgs
{
DI_CallingConvention,
DI_CharSet,
DI_EntryPoint,
DI_ExactSpelling,
DI_SetLastError,
DI_PreserveSig,
DI_BestFitMapping,
DI_ThrowOnUnmappableChar,
DI_COUNT
};
DEFINE_CA_NAMED_ARGS(DllImportAttribute)
DEFINE_CA_NAMED_FIELD_I4ENUM("CallingConvention", "System.Runtime.InteropServices.CallingConvention")
DEFINE_CA_NAMED_FIELD_I4ENUM("CharSet", "System.Runtime.InteropServices.CharSet")
DEFINE_CA_NAMED_FIELD_STRING("EntryPoint")
DEFINE_CA_NAMED_FIELD_BOOL("ExactSpelling")
DEFINE_CA_NAMED_FIELD_BOOL("SetLastError")
DEFINE_CA_NAMED_FIELD_BOOL("PreserveSig")
DEFINE_CA_NAMED_FIELD_BOOL("BestFitMapping")
DEFINE_CA_NAMED_FIELD_BOOL("ThrowOnUnmappableChar")
DEFINE_CA_NAMED_ARGS_END()
const KnownCaProp DllImportAttributeProps = {"System.Runtime.InteropServices", "DllImportAttribute", DllImportTargets, bDONTKEEPCA,
rDllImportAttributeArgs, ARRAY_SIZE(rDllImportAttributeArgs),
rDllImportAttributeNamedArgs, ARRAY_SIZE(rDllImportAttributeNamedArgs)};
//-----------------------------------------------------------------------------
// GUID args, named args (none), and known attribute properties.
DEFINE_CA_CTOR_ARGS(GuidAttribute)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_STRING)
DEFINE_CA_CTOR_ARGS_END()
const KnownCaProp GuidAttributeProps = {"System.Runtime.InteropServices", "GuidAttribute", GuidTargets, bKEEPCA,
rGuidAttributeArgs, ARRAY_SIZE(rGuidAttributeArgs)};
//-----------------------------------------------------------------------------
// ComImport args (none), named args (none), and known attribute properties.
const KnownCaProp ComImportAttributeProps = {"System.Runtime.InteropServices", "ComImportAttribute", ComImportTargets};
//-----------------------------------------------------------------------------
// Interface type args, named args (none), and known attribute properties.
DEFINE_CA_CTOR_ARGS(InterfaceTypeAttribute)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_U2)
DEFINE_CA_CTOR_ARGS_END()
const KnownCaProp InterfaceTypeAttributeProps = {"System.Runtime.InteropServices", "InterfaceTypeAttribute", InterfaceTypeTargets, bKEEPCA,
rInterfaceTypeAttributeArgs, ARRAY_SIZE(rInterfaceTypeAttributeArgs)};
//-----------------------------------------------------------------------------
// Class interface type args, named args (none), and known attribute properties.
DEFINE_CA_CTOR_ARGS(ClassInterfaceAttribute)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_U2)
DEFINE_CA_CTOR_ARGS_END()
const KnownCaProp ClassInterfaceAttributeProps = {"System.Runtime.InteropServices", "ClassInterfaceAttribute", ClassInterfaceTargets, bKEEPCA,
rClassInterfaceAttributeArgs, ARRAY_SIZE(rClassInterfaceAttributeArgs)};
//-----------------------------------------------------------------------------
// Serializable args (none), named args (none), and known attribute properties.
const KnownCaProp SerializableAttributeProps = {"System", "SerializableAttribute", SerializableTargets};
//-----------------------------------------------------------------------------
// NonSerialized args (none), named args (none), and known attribute properties.
const KnownCaProp NonSerializedAttributeProps = {"System", "NonSerializedAttribute", NonSerializedTargets};
//-----------------------------------------------------------------------------
// SpecialName args (none), named args (none), and known attribute properties.
const KnownCaProp SpecialNameAttributeProps = {"System.Runtime.CompilerServices", "SpecialNameAttribute", SpecialNameTargets, bDONTKEEPCA};
//-----------------------------------------------------------------------------
// WindowsRuntimeImport args (none), named args (none), and known attribute properties.
const KnownCaProp WindowsRuntimeImportAttributeProps = {"System.Runtime.InteropServices.WindowsRuntime", "WindowsRuntimeImportAttribute", WindowsRuntimeImportTargets};
//-----------------------------------------------------------------------------
// MethodImpl #1 args (none), named args, and known attribute properties.
// MethodImpl #2 args (short), named args, and known attribute properties.
// MethodImpl #3 args (enum), named args, and known attribute properties.
// Note: first two match by signature; third by name only, because signature matching code is not
// strong enough for enums.
DEFINE_CA_CTOR_ARGS(MethodImplAttribute2)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I2)
DEFINE_CA_CTOR_ARGS_END()
DEFINE_CA_CTOR_ARGS(MethodImplAttribute3)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_U4)
DEFINE_CA_CTOR_ARGS_END()
enum MethodImplAttributeNamedArgs
{
MI_CodeType,
MI_COUNT
};
DEFINE_CA_NAMED_ARGS(MethodImplAttribute)
DEFINE_CA_NAMED_FIELD_I4ENUM("MethodCodeType", "System.Runtime.CompilerServices.MethodCodeType")
DEFINE_CA_NAMED_ARGS_END()
const KnownCaProp MethodImplAttribute1Props = {"System.Runtime.CompilerServices", "MethodImplAttribute", MethodImplTargets, bDONTKEEPCA,
0, 0,
rMethodImplAttributeNamedArgs, ARRAY_SIZE(rMethodImplAttributeNamedArgs),
bMATCHBYSIG};
const KnownCaProp MethodImplAttribute2Props = {"System.Runtime.CompilerServices", "MethodImplAttribute", MethodImplTargets, bDONTKEEPCA,
rMethodImplAttribute2Args, ARRAY_SIZE(rMethodImplAttribute2Args),
rMethodImplAttributeNamedArgs, ARRAY_SIZE(rMethodImplAttributeNamedArgs),
bMATCHBYSIG};
const KnownCaProp MethodImplAttribute3Props = {"System.Runtime.CompilerServices", "MethodImplAttribute", MethodImplTargets, bDONTKEEPCA,
rMethodImplAttribute3Args, ARRAY_SIZE(rMethodImplAttribute3Args),
rMethodImplAttributeNamedArgs, ARRAY_SIZE(rMethodImplAttributeNamedArgs),
bMATCHBYNAME};
//-----------------------------------------------------------------------------
// Marshal args, named args, and known attribute properties.
DEFINE_CA_CTOR_ARGS(MarshalAsAttribute2)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_U4)
DEFINE_CA_CTOR_ARGS_END()
DEFINE_CA_CTOR_ARGS(MarshalAsAttribute1)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I2)
DEFINE_CA_CTOR_ARGS_END()
// NOTE: Keep this enum in sync with the array of named arguments.
enum MarshalNamedArgs
{
M_ArraySubType,
M_SafeArraySubType,
M_SafeArrayUserDefinedSubType,
M_SizeParamIndex,
M_SizeConst,
M_MarshalType,
M_MarshalTypeRef,
M_MarshalCookie,
M_IidParameterIndex,
M_COUNT
};
DEFINE_CA_NAMED_ARGS(MarshalAsAttribute)
DEFINE_CA_NAMED_FIELD_I4ENUM("ArraySubType", "System.Runtime.InteropServices.UnmanagedType")
DEFINE_CA_NAMED_FIELD_I4ENUM("SafeArraySubType", "System.Runtime.InteropServices.VarEnum")
DEFINE_CA_NAMED_FIELD_TYPE("SafeArrayUserDefinedSubType")
DEFINE_CA_NAMED_FIELD_I2("SizeParamIndex")
DEFINE_CA_NAMED_FIELD_I4("SizeConst")
DEFINE_CA_NAMED_FIELD_STRING("MarshalType")
DEFINE_CA_NAMED_FIELD_TYPE("MarshalTypeRef")
DEFINE_CA_NAMED_FIELD_STRING("MarshalCookie")
DEFINE_CA_NAMED_FIELD_I4("IidParameterIndex")
DEFINE_CA_NAMED_ARGS_END()
const KnownCaProp MarshalAsAttribute1Props = {"System.Runtime.InteropServices", "MarshalAsAttribute", MarshalTargets, bDONTKEEPCA,
rMarshalAsAttribute1Args, ARRAY_SIZE(rMarshalAsAttribute1Args),
rMarshalAsAttributeNamedArgs, ARRAY_SIZE(rMarshalAsAttributeNamedArgs),
bMATCHBYSIG};
const KnownCaProp MarshalAsAttribute2Props = {"System.Runtime.InteropServices", "MarshalAsAttribute", MarshalTargets, bDONTKEEPCA,
rMarshalAsAttribute2Args, ARRAY_SIZE(rMarshalAsAttribute2Args),
rMarshalAsAttributeNamedArgs, ARRAY_SIZE(rMarshalAsAttributeNamedArgs),
bMATCHBYNAME};
//-----------------------------------------------------------------------------
// PreserveSignature args, named args (none), and known attribute properties.
const KnownCaProp PreserveSigAttributeProps = {"System.Runtime.InteropServices", "PreserveSigAttribute", PreserveSigTargets, bDONTKEEPCA};
//-----------------------------------------------------------------------------
// In args (none), named args (none), and known attribute properties.
const KnownCaProp InAttributeProps = {"System.Runtime.InteropServices", "InAttribute", InOutTargets};
//-----------------------------------------------------------------------------
// Out args (none), named args (none), and known attribute properties.
const KnownCaProp OutAttributeProps = {"System.Runtime.InteropServices", "OutAttribute", InOutTargets};
//-----------------------------------------------------------------------------
// Optional args (none), named args (none), and known attribute properties.
const KnownCaProp OptionalAttributeProps = {"System.Runtime.InteropServices", "OptionalAttribute", InOutTargets};
//-----------------------------------------------------------------------------
// StructLayout args, named args, and known attribute properties.
DEFINE_CA_CTOR_ARGS(StructLayoutAttribute2)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I4)
DEFINE_CA_CTOR_ARGS_END()
DEFINE_CA_CTOR_ARGS(StructLayoutAttribute1)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I2)
DEFINE_CA_CTOR_ARGS_END()
// NOTE: Keep this enum in sync with the array of named arguments.
enum StructLayoutNamedArgs
{
SL_Pack,
SL_Size,
SL_CharSet,
SL_COUNT
};
DEFINE_CA_NAMED_ARGS(StructLayoutAttribute)
DEFINE_CA_NAMED_FIELD_I4("Pack")
DEFINE_CA_NAMED_FIELD_I4("Size")
DEFINE_CA_NAMED_FIELD_I4ENUM("CharSet", "System.Runtime.InteropServices.CharSet")
DEFINE_CA_NAMED_ARGS_END()
const KnownCaProp StructLayoutAttribute1Props = {"System.Runtime.InteropServices", "StructLayoutAttribute", StructLayoutTargets, bDONTKEEPCA,
rStructLayoutAttribute1Args, ARRAY_SIZE(rStructLayoutAttribute1Args),
rStructLayoutAttributeNamedArgs, ARRAY_SIZE(rStructLayoutAttributeNamedArgs),
bMATCHBYSIG};
const KnownCaProp StructLayoutAttribute2Props = {"System.Runtime.InteropServices", "StructLayoutAttribute", StructLayoutTargets, bDONTKEEPCA,
rStructLayoutAttribute2Args, ARRAY_SIZE(rStructLayoutAttribute2Args),
rStructLayoutAttributeNamedArgs, ARRAY_SIZE(rStructLayoutAttributeNamedArgs),
bMATCHBYNAME};
//-----------------------------------------------------------------------------
// FieldOffset args, named args (none), and known attribute properties.
DEFINE_CA_CTOR_ARGS(FieldOffsetAttribute)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_U4)
DEFINE_CA_CTOR_ARGS_END()
const KnownCaProp FieldOffsetAttributeProps = {"System.Runtime.InteropServices", "FieldOffsetAttribute", FieldOffsetTargets, bDONTKEEPCA,
rFieldOffsetAttributeArgs, ARRAY_SIZE(rFieldOffsetAttributeArgs)};
DEFINE_CA_CTOR_ARGS(TypeLibVersionAttribute)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I4)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I4)
DEFINE_CA_CTOR_ARGS_END()
const KnownCaProp TypeLibVersionAttributeProps = {"System.Runtime.InteropServices", "TypeLibVersionAttribute", TypeLibVersionTargets, bKEEPCA,
rTypeLibVersionAttributeArgs, ARRAY_SIZE(rTypeLibVersionAttributeArgs)};
DEFINE_CA_CTOR_ARGS(ComCompatibleVersionAttribute)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I4)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I4)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I4)
DEFINE_CA_CTOR_ARG(SERIALIZATION_TYPE_I4)
DEFINE_CA_CTOR_ARGS_END()
const KnownCaProp ComCompatibleVersionAttributeProps = {"System.Runtime.InteropServices", "ComCompatibleVersionAttribute", ComCompatibleVersionTargets, bKEEPCA,
rComCompatibleVersionAttributeArgs, ARRAY_SIZE(rComCompatibleVersionAttributeArgs)};
//-----------------------------------------------------------------------------
// APTCA args (none), named args (none), and known attribute properties.
const KnownCaProp AllowPartiallyTrustedCallersAttributeProps = {"System.Security", "AllowPartiallyTrustedCallersAttribute", AllowPartiallyTrustedCallersTargets, bKEEPCA};
//-----------------------------------------------------------------------------
// Array of known custom attribute properties
#undef KnownCa
#define KnownCa(x) &x##Props,
const KnownCaProp * const rKnownCaProps[CA_COUNT] =
{
KnownCaList()
};
//*****************************************************************************
// Helper to turn on or off a single bit in a bitmask.
//*****************************************************************************
template<class T> FORCEINLINE void SetBitValue(T &bitmask, T bit, int bVal)
{
if (bVal)
bitmask |= bit;
else
bitmask &= ~bit;
} // template<class T> FORCEINLINE void SetBitValue()
HRESULT ParseEncodedType(
CustomAttributeParser &ca,
CaType* pCaType)
{
CONTRACTL
{
PRECONDITION(CheckPointer(pCaType));
NOTHROW;
}
CONTRACTL_END;
HRESULT hr = S_OK;
CorSerializationType* pType = &pCaType->tag;
IfFailGo(ca.GetTag(pType));
if (*pType == SERIALIZATION_TYPE_SZARRAY)
{
IfFailGo(ca.GetTag(&pCaType->arrayType));
pType = &pCaType->arrayType;
}
if (*pType == SERIALIZATION_TYPE_ENUM)
{
// We cannot determine the underlying type without loading the Enum.
pCaType->enumType = SERIALIZATION_TYPE_UNDEFINED;
IfFailGo(ca.GetNonNullString(&pCaType->szEnumName, &pCaType->cEnumName));
}
ErrExit:
return hr;
}
//---------------------------------------------------------------------------------------
//
// Helper to parse the values for the ctor argument list and the named argument list.
//
HRESULT ParseKnownCaValue(
CustomAttributeParser &ca,
CaValue* pCaArg,
CaType* pCaParam)
{
CONTRACTL
{
PRECONDITION(CheckPointer(pCaArg));
PRECONDITION(CheckPointer(pCaParam));
PRECONDITION(pCaParam->tag != SERIALIZATION_TYPE_TAGGED_OBJECT && pCaParam->tag != SERIALIZATION_TYPE_SZARRAY);
NOTHROW;
}
CONTRACTL_END;
HRESULT hr = S_OK;
CorSerializationType underlyingType;
pCaArg->type = *pCaParam;
underlyingType = pCaArg->type.tag == SERIALIZATION_TYPE_ENUM ? pCaArg->type.enumType : pCaArg->type.tag;
// Grab the value.
switch (underlyingType)
{
case SERIALIZATION_TYPE_BOOLEAN:
case SERIALIZATION_TYPE_I1:
case SERIALIZATION_TYPE_U1:
IfFailGo(ca.GetU1(&pCaArg->u1));
break;
case SERIALIZATION_TYPE_CHAR:
case SERIALIZATION_TYPE_I2:
case SERIALIZATION_TYPE_U2:
IfFailGo(ca.GetU2(&pCaArg->u2));
break;
case SERIALIZATION_TYPE_I4:
case SERIALIZATION_TYPE_U4:
IfFailGo(ca.GetU4(&pCaArg->u4));
break;
case SERIALIZATION_TYPE_I8:
case SERIALIZATION_TYPE_U8:
IfFailGo(ca.GetU8(&pCaArg->u8));
break;
case SERIALIZATION_TYPE_R4:
IfFailGo(ca.GetR4(&pCaArg->r4));
break;
case SERIALIZATION_TYPE_R8:
IfFailGo(ca.GetR8(&pCaArg->r8));
break;
case SERIALIZATION_TYPE_STRING:
case SERIALIZATION_TYPE_TYPE:
IfFailGo(ca.GetString(&pCaArg->str.pStr, &pCaArg->str.cbStr));
break;
default:
// The arguments of all known custom attributes are Type, String, Enum, or primitive types.
_ASSERTE(!"Unexpected internal error");
hr = E_FAIL;
break;
} // End switch
ErrExit:
return hr;
}
//---------------------------------------------------------------------------------------
//
// Helper to parse the nanmed argument list.
// This function is used by code:RegMeta::DefineCustomAttribute for IMetaDataEmit2 and
// should not have any VM dependency.
//
HRESULT ParseKnownCaNamedArgs(
CustomAttributeParser &ca, // The Custom Attribute blob.
CaNamedArg *pNamedParams, // Array of argument descriptors.
ULONG cNamedParams)
{
WRAPPER_NO_CONTRACT;
HRESULT hr = S_OK;
ULONG ixParam;
INT32 ixArg;
INT16 cActualArgs;
CaNamedArgCtor namedArg;
CaNamedArg* pNamedParam;
// Get actual count of named arguments.
if (FAILED(ca.GetI2(&cActualArgs)))
cActualArgs = 0; // Everett behavior
for (ixParam = 0; ixParam < cNamedParams; ixParam++)
pNamedParams[ixParam].val.type.tag = SERIALIZATION_TYPE_UNDEFINED;
// For each named argument...
for (ixArg = 0; ixArg < cActualArgs; ixArg++)
{
// Field or property?
IfFailGo(ca.GetTag(&namedArg.propertyOrField));
if (namedArg.propertyOrField != SERIALIZATION_TYPE_FIELD && namedArg.propertyOrField != SERIALIZATION_TYPE_PROPERTY)
IfFailGo(PostError(META_E_CA_INVALID_ARGTYPE));
// Get argument type information
IfFailGo(ParseEncodedType(ca, &namedArg.type));
// Get name of Arg.
if (FAILED(ca.GetNonEmptyString(&namedArg.szName, &namedArg.cName)))
IfFailGo(PostError(META_E_CA_INVALID_BLOB));
// Match arg by name and type
for (ixParam = 0; ixParam < cNamedParams; ixParam++)
{
pNamedParam = &pNamedParams[ixParam];
// Match type
if (pNamedParam->type.tag != SERIALIZATION_TYPE_TAGGED_OBJECT)
{
if (namedArg.type.tag != pNamedParam->type.tag)
continue;
// Match array type
if (namedArg.type.tag == SERIALIZATION_TYPE_SZARRAY &&
pNamedParam->type.arrayType != SERIALIZATION_TYPE_TAGGED_OBJECT &&
namedArg.type.arrayType != pNamedParam->type.arrayType)
continue;
}
// Match name (and its length to avoid substring matching)
if ((pNamedParam->cName != namedArg.cName) ||
(strncmp(pNamedParam->szName, namedArg.szName, namedArg.cName) != 0))
{
continue;
}
// If enum, match enum name.
if (pNamedParam->type.tag == SERIALIZATION_TYPE_ENUM ||
(pNamedParam->type.tag == SERIALIZATION_TYPE_SZARRAY && pNamedParam->type.arrayType == SERIALIZATION_TYPE_ENUM ))
{
if (pNamedParam->type.cEnumName > namedArg.type.cEnumName)
continue; // name cannot possibly match
if (strncmp(pNamedParam->type.szEnumName, namedArg.type.szEnumName, pNamedParam->type.cEnumName) != 0 ||
(pNamedParam->type.cEnumName < namedArg.type.cEnumName &&
namedArg.type.szEnumName[pNamedParam->type.cEnumName] != ','))
continue;
// TODO: For now assume the property\field array size is correct - later we should verify this
namedArg.type.enumType = pNamedParam->type.enumType;
}
// Found a match.
break;
}
// Better have found an argument.
if (ixParam == cNamedParams)
{
IfFailGo(PostError(META_E_CA_UNKNOWN_ARGUMENT, namedArg.cName, namedArg.szName));
}
// Argument had better not have been seen already.
if (pNamedParams[ixParam].val.type.tag != SERIALIZATION_TYPE_UNDEFINED)
{
IfFailGo(PostError(META_E_CA_REPEATED_ARG, namedArg.cName, namedArg.szName));
}
IfFailGo(ParseKnownCaValue(ca, &pNamedParams[ixParam].val, &namedArg.type));
}
ErrExit:
return hr;
}
//---------------------------------------------------------------------------------------
//
// Helper to parse the ctor argument list.
// This function is used by code:RegMeta::DefineCustomAttribute for IMetaDataEmit2 and
// should not have any VM dependency.
//
HRESULT ParseKnownCaArgs(
CustomAttributeParser &ca, // The Custom Attribute blob.
CaArg* pArgs, // Array of argument descriptors.
ULONG cArgs) // Count of argument descriptors.
{
WRAPPER_NO_CONTRACT;
HRESULT hr = S_OK; // A result.
ULONG ix; // Loop control.
// If there is a blob, check the prolog.
if (FAILED(ca.ValidateProlog()))
{
IfFailGo(PostError(META_E_CA_INVALID_BLOB));
}
// For each expected arg...
for (ix=0; ix<cArgs; ++ix)
{
CaArg* pArg = &pArgs[ix];
IfFailGo(ParseKnownCaValue(ca, &pArg->val, &pArg->type));
}
ErrExit:
return hr;
} // ParseKnownCaArgs
//*****************************************************************************
// Create a CustomAttribute record from a blob with the specified parent.
//*****************************************************************************
STDMETHODIMP RegMeta::DefineCustomAttribute(
mdToken tkOwner, // [IN] The object to put the value on.
mdToken tkCtor, // [IN] Constructor of the CustomAttribute type (MemberRef/MethodDef).
void const *pCustomAttribute, // [IN] Custom Attribute data.
ULONG cbCustomAttribute, // [IN] Size of custom Attribute data.
mdCustomAttribute *pcv) // [OUT, OPTIONAL] Put custom Attribute token here.
{
#ifdef FEATURE_METADATA_EMIT_IN_DEBUGGER
return E_NOTIMPL;
#else //!FEATURE_METADATA_EMIT_IN_DEBUGGER
HRESULT hr = S_OK;
CustomAttributeRec *pRecord = NULL; // New custom Attribute record.
RID iRecord; // New custom Attribute RID.
CMiniMdRW *pMiniMd = &m_pStgdb->m_MiniMd;
int ixKnown; // Index of known custom attribute.
LOCKWRITE();
_ASSERTE(TypeFromToken(tkCtor) == mdtMethodDef || TypeFromToken(tkCtor) == mdtMemberRef);
if (TypeFromToken(tkOwner) == mdtCustomAttribute)
IfFailGo(E_INVALIDARG);
IfFailGo(m_pStgdb->m_MiniMd.PreUpdate());
if (IsNilToken(tkOwner) ||
IsNilToken(tkCtor) ||
(TypeFromToken(tkCtor) != mdtMethodDef &&
TypeFromToken(tkCtor) != mdtMemberRef) )
{
IfFailGo(E_INVALIDARG);
}
// See if this is a known custom attribute.
IfFailGo(_IsKnownCustomAttribute(tkCtor, &ixKnown));
if (ixKnown != 0)
{
int bKeep = false;
hr = _HandleKnownCustomAttribute(tkOwner, pCustomAttribute, cbCustomAttribute, ixKnown, &bKeep);
if (pcv)
*pcv = mdCustomAttributeNil;
IfFailGo(hr);
if (!bKeep)
goto ErrExit;
}
if (((TypeFromToken(tkOwner) == mdtTypeDef) || (TypeFromToken(tkOwner) == mdtMethodDef)) &&
(TypeFromToken(tkCtor) == mdtMethodDef || TypeFromToken(tkCtor) == mdtMemberRef))
{
CHAR szBuffer[MAX_CLASS_NAME + 1];
LPSTR szName = szBuffer;
LPCSTR szNamespace;
LPCSTR szClass;
TypeRefRec *pTypeRefRec = NULL;
TypeDefRec *pTypeDefRec = NULL;
mdToken tkParent;
if (TypeFromToken(tkCtor) == mdtMemberRef)
{
MemberRefRec *pMemberRefRec;
IfFailGo(pMiniMd->GetMemberRefRecord(RidFromToken(tkCtor), &pMemberRefRec));
tkParent = pMiniMd->getClassOfMemberRef(pMemberRefRec);
if (TypeFromToken(tkParent) == mdtTypeRef)
{
IfFailGo(pMiniMd->GetTypeRefRecord(RidFromToken(tkParent), &pTypeRefRec));
IfFailGo(pMiniMd->getNamespaceOfTypeRef(pTypeRefRec, &szNamespace));
IfFailGo(pMiniMd->getNameOfTypeRef(pTypeRefRec, &szClass));
ns::MakePath(szName, sizeof(szBuffer) - 1, szNamespace, szClass);
}
else if (TypeFromToken(tkParent) == mdtTypeDef)
{
IfFailGo(pMiniMd->GetTypeDefRecord(RidFromToken(tkParent), &pTypeDefRec));
}
}
else
{
IfFailGo(pMiniMd->FindParentOfMethodHelper(tkCtor, &tkParent));
IfFailGo(pMiniMd->GetTypeDefRecord(RidFromToken(tkParent), &pTypeDefRec));
}
if (pTypeDefRec != NULL)
{
IfFailGo(pMiniMd->getNamespaceOfTypeDef(pTypeDefRec, &szNamespace));
IfFailGo(pMiniMd->getNameOfTypeDef(pTypeDefRec, &szClass));
ns::MakePath(szName, sizeof(szBuffer) - 1, szNamespace, szClass);
}
if ((TypeFromToken(tkOwner) == mdtMethodDef) && strcmp(szName, COR_REQUIRES_SECOBJ_ATTRIBUTE_ANSI) == 0)
{
// Turn REQ_SO attribute into flag bit on the methoddef.
MethodRec *pMethod;
IfFailGo(m_pStgdb->m_MiniMd.GetMethodRecord(RidFromToken(tkOwner), &pMethod));
pMethod->AddFlags(mdRequireSecObject);
IfFailGo(UpdateENCLog(tkOwner));
goto ErrExit;
}
else if (strcmp(szName, COR_SUPPRESS_UNMANAGED_CODE_CHECK_ATTRIBUTE_ANSI) == 0)
{
// If we spot an unmanged code check suppression attribute, turn on
// the bit that says there's declarative security on the
// class/method, but still write the attribute itself.
if (TypeFromToken(tkOwner) == mdtTypeDef)
{
IfFailGo(_TurnInternalFlagsOn(tkOwner, tdHasSecurity));
}
else if (TypeFromToken(tkOwner) == mdtMethodDef)
{
IfFailGo(_TurnInternalFlagsOn(tkOwner, mdHasSecurity));
}
IfFailGo(UpdateENCLog(tkOwner));
}
}
IfFailGo(m_pStgdb->m_MiniMd.AddCustomAttributeRecord(&pRecord, &iRecord));
IfFailGo(m_pStgdb->m_MiniMd.PutToken(TBL_CustomAttribute, CustomAttributeRec::COL_Type, pRecord, tkCtor));
IfFailGo(m_pStgdb->m_MiniMd.PutToken(TBL_CustomAttribute, CustomAttributeRec::COL_Parent, pRecord, tkOwner));
IfFailGo(m_pStgdb->m_MiniMd.PutBlob(TBL_CustomAttribute, CustomAttributeRec::COL_Value, pRecord, pCustomAttribute, cbCustomAttribute));
// Give token back to caller.
if (pcv != NULL)
*pcv = TokenFromRid(iRecord, mdtCustomAttribute);
IfFailGo(m_pStgdb->m_MiniMd.AddCustomAttributesToHash(TokenFromRid(iRecord, mdtCustomAttribute)) );
IfFailGo(UpdateENCLog(TokenFromRid(iRecord, mdtCustomAttribute)));
ErrExit:
return hr;
#endif //!FEATURE_METADATA_EMIT_IN_DEBUGGER
} // RegMeta::DefineCustomAttribute
//*****************************************************************************
// Replace the blob of an existing custom attribute.
//*****************************************************************************
STDMETHODIMP RegMeta::SetCustomAttributeValue( // Return code.
mdCustomAttribute tkAttr, // [IN] The object to be Attributed.
void const *pCustomAttribute, // [IN] Custom Attribute data.
ULONG cbCustomAttribute) // [IN] Size of custom Attribute data.
{
#ifdef FEATURE_METADATA_EMIT_IN_DEBUGGER
return E_NOTIMPL;
#else //!FEATURE_METADATA_EMIT_IN_DEBUGGER
HRESULT hr;
CustomAttributeRec *pRecord = NULL;// Existing custom Attribute record.
LOCKWRITE();
IfFailGo(m_pStgdb->m_MiniMd.PreUpdate());
_ASSERTE(TypeFromToken(tkAttr) == mdtCustomAttribute && !InvalidRid(tkAttr));
// Retrieve and update the custom value.
IfFailGo(m_pStgdb->m_MiniMd.GetCustomAttributeRecord(RidFromToken(tkAttr), &pRecord));
IfFailGo(m_pStgdb->m_MiniMd.PutBlob(TBL_CustomAttribute, CustomAttributeRec::COL_Value, pRecord, pCustomAttribute, cbCustomAttribute));
IfFailGo(UpdateENCLog(tkAttr));
ErrExit:
return hr;
#endif //!FEATURE_METADATA_EMIT_IN_DEBUGGER
} // RegMeta::SetCustomAttributeValue
#if !defined(FEATURE_METADATA_EMIT_IN_DEBUGGER)
//*****************************************************************************
//*****************************************************************************
HRESULT RegMeta::_IsKnownCustomAttribute( // S_OK, S_FALSE, or error.
mdToken tkCtor, // [IN] Token of custom attribute's constructor.
int *pca) // [OUT] Put value from KnownCustAttr enum here.
{
HRESULT hr = S_OK; // A result.
CCustAttrHashKey sLookup; // For looking up a custom attribute.
LPCSTR szNamespace = ""; // Namespace of custom attribute type.
LPCSTR szName = ""; // Name of custom attribute type.
TypeDefRec *pTypeDefRec = NULL; // Parent record, when a TypeDef.
TypeRefRec *pTypeRefRec = NULL; // Parent record, when a TypeRef.
CMiniMdRW *pMiniMd = &m_pStgdb->m_MiniMd;
int ixCa; // Index of Known CustomAttribute, or 0.
int i; // Loop control.
mdToken tkParent;
*pca = 0;
// Only for Custom Attributes.
_ASSERTE(TypeFromToken(tkCtor) != mdtTypeRef && TypeFromToken(tkCtor) != mdtTypeDef);
sLookup.tkType = tkCtor;
// See if this custom attribute type has been seen before.
const CCustAttrHashKey* pFound = m_caHash.LookupPtr(tkCtor);
if (pFound)
{ // Yes, already seen.
*pca = pFound->ca;
hr = (pFound->ca == CA_UNKNOWN) ? S_FALSE : S_OK;
goto ErrExit;
}
// Hasn't been seen before. See if it is well known.
// Get the CA name.
if (TypeFromToken(tkCtor) == mdtMemberRef)
{
MemberRefRec *pMember;
IfFailGo(pMiniMd->GetMemberRefRecord(RidFromToken(tkCtor), &pMember));
tkParent = pMiniMd->getClassOfMemberRef(pMember);
if (TypeFromToken(tkParent) == mdtTypeRef)
{
IfFailGo(pMiniMd->GetTypeRefRecord(RidFromToken(tkParent), &pTypeRefRec));
IfFailGo(pMiniMd->getNamespaceOfTypeRef(pTypeRefRec, &szNamespace));
IfFailGo(pMiniMd->getNameOfTypeRef(pTypeRefRec, &szName));
}
else if (TypeFromToken(tkParent) == mdtTypeDef)
IfFailGo(pMiniMd->GetTypeDefRecord(RidFromToken(tkParent), &pTypeDefRec));
}
else
{
IfFailGo(pMiniMd->FindParentOfMethodHelper(tkCtor, &tkParent));
IfFailGo(pMiniMd->GetTypeDefRecord(RidFromToken(tkParent), &pTypeDefRec));
}
if (pTypeDefRec)
{
IfFailGo(pMiniMd->getNamespaceOfTypeDef(pTypeDefRec, &szNamespace));
IfFailGo(pMiniMd->getNameOfTypeDef(pTypeDefRec, &szName));
}
// Search in list of Known CAs.
for (ixCa=0, i=1; i<CA_COUNT; ++i)
{
if (strcmp(szName, rKnownCaProps[i]->szName) != 0)
continue;
if (strcmp(szNamespace, rKnownCaProps[i]->szNamespace) == 0)
{
// Some custom attributes have overloaded ctors. For those,
// see if this is the matching overload.
if (rKnownCaProps[i]->bMatchBySig)
{
// Name matches. Does the signature?
PCCOR_SIGNATURE pSig = NULL; // Signature of a method.
ULONG cbSig = 0; // Size of the signature.
ULONG cParams; // Count of signature parameters.
ULONG cb; // Size of an element
ULONG elem; // Signature element.
ULONG j; // Loop control.
// Get the signature.
if (TypeFromToken(tkCtor) == mdtMemberRef)
{
MemberRefRec *pMember;
IfFailGo(pMiniMd->GetMemberRefRecord(RidFromToken(tkCtor), &pMember));
IfFailGo(pMiniMd->getSignatureOfMemberRef(pMember, &pSig, &cbSig));
}
else
{
MethodRec *pMethod;
IfFailGo(pMiniMd->GetMethodRecord(RidFromToken(tkCtor), &pMethod));
IfFailGo(pMiniMd->getSignatureOfMethod(pMethod, &pSig, &cbSig));
}
// Skip calling convention.
cb = CorSigUncompressData(pSig, &elem);
pSig += cb;
cbSig -= cb;
// Count of params.
cb = CorSigUncompressData(pSig, &cParams);
pSig += cb;
cbSig -= cb;
// If param count mismatch, not the right CA.
if (cParams != rKnownCaProps[i]->cArgs)
continue;
// Count is fine, check each param. Skip return type (better be void).
cb = CorSigUncompressData(pSig, &elem);
_ASSERTE(elem == ELEMENT_TYPE_VOID);
pSig += cb;
cbSig -= cb;
for (j=0; j<cParams; ++j)
{
// Get next element from method signature.
cb = CorSigUncompressData(pSig, &elem);
pSig += cb;
cbSig -= cb;
if (rKnownCaProps[i]->pArgs[j].type.tag != (CorSerializationType) elem)
break;
}
// All matched?
if (j != cParams)
continue;
}
// All matched.
ixCa = i;
break;
}
}
// Add to hash.
sLookup.ca = ixCa;
if (!m_caHash.AddNoThrow(sLookup))
return E_OUTOFMEMORY;
*pca = ixCa;
ErrExit:
return hr;
} // RegMeta::_IsKnownCustomAttribute