private unsafe static void ConvertConstantSignature(BlobBuilder builder, MetadataModel metadataModel, byte[] signature, object value)
{
fixed(byte *sigPtr = signature)
{
var sigReader = new BlobReader(sigPtr, signature.Length);
// copy custom modifiers over:
byte rawTypeCode;
while (true)
{
rawTypeCode = sigReader.ReadByte();
if (rawTypeCode != (int)SignatureTypeCode.OptionalModifier && rawTypeCode != (int)SignatureTypeCode.RequiredModifier)
{
break;
}
builder.WriteByte(rawTypeCode);
builder.WriteCompressedInteger(sigReader.ReadCompressedInteger());
}
switch ((SignatureTypeCode)rawTypeCode)
{
case (SignatureTypeCode)SignatureTypeKind.Class:
case (SignatureTypeCode)SignatureTypeKind.ValueType:
int typeRefDefSpec = sigReader.ReadCompressedInteger();
if (value is decimal)
{
// GeneralConstant: VALUETYPE TypeDefOrRefOrSpecEncoded <decimal>
builder.WriteByte((byte)SignatureTypeKind.ValueType);
builder.WriteCompressedInteger(typeRefDefSpec);
builder.WriteDecimal((decimal)value);
}
else if (value is double d)
{
// GeneralConstant: VALUETYPE TypeDefOrRefOrSpecEncoded <date-time>
builder.WriteByte((byte)SignatureTypeKind.ValueType);
builder.WriteCompressedInteger(typeRefDefSpec);
builder.WriteDateTime(new DateTime(BitConverter.DoubleToInt64Bits(d)));
}
else if (value is 0 && rawTypeCode == (byte)SignatureTypeKind.Class)
{
// GeneralConstant: CLASS TypeDefOrRefOrSpecEncoded
builder.WriteByte(rawTypeCode);
builder.WriteCompressedInteger(typeRefDefSpec);
}
else
{
// EnumConstant ::= EnumTypeCode EnumValue EnumType
// EnumTypeCode ::= BOOLEAN | CHAR | I1 | U1 | I2 | U2 | I4 | U4 | I8 | U8
// EnumType ::= TypeDefOrRefOrSpecEncoded
var enumTypeCode = AssemblyDisplayNameBuilder.GetConstantTypeCode(value);
builder.WriteByte((byte)enumTypeCode);
builder.WriteConstant(value);
builder.WriteCompressedInteger(typeRefDefSpec);
}
break;
public void WritePrimitive()
{
var writer = new BlobBuilder(17);
writer.WriteUInt32(0x11223344);
writer.WriteUInt16(0x5566);
writer.WriteByte(0x77);
writer.WriteUInt64(0x8899aabbccddeeff);
writer.WriteInt32(-1);
writer.WriteInt16(-2);
writer.WriteSByte(-3);
writer.WriteBoolean(true);
writer.WriteBoolean(false);
writer.WriteInt64(unchecked ((long)0xfedcba0987654321));
writer.WriteDateTime(new DateTime(0x1112223334445556));
writer.WriteDecimal(102030405060.70m);
writer.WriteDouble(double.NaN);
writer.WriteSingle(float.NegativeInfinity);
var guid = new Guid("01020304-0506-0708-090A-0B0C0D0E0F10");
writer.WriteBytes(guid.ToByteArray());
writer.WriteGuid(guid);
AssertEx.Equal(new byte[]
{
0x44, 0x33, 0x22, 0x11,
0x66, 0x55,
0x77,
0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88,
0xff, 0xff, 0xff, 0xff,
0xfe, 0xff,
0xfd,
0x01,
0x00,
0x21, 0x43, 0x65, 0x87, 0x09, 0xBA, 0xDC, 0xFE,
0x56, 0x55, 0x44, 0x34, 0x33, 0x22, 0x12, 0x11,
0x02, 0xD6, 0xE0, 0x9A, 0x94, 0x47, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xFF,
0x00, 0x00, 0x80, 0xFF,
0x04, 0x03, 0x02, 0x01, 0x06, 0x05, 0x08, 0x07, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10,
0x04, 0x03, 0x02, 0x01, 0x06, 0x05, 0x08, 0x07, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10
}, writer.ToArray());
}
public void WritePrimitive()
{
var writer = new BlobBuilder(17);
writer.WriteUInt32(0x11223344);
writer.WriteUInt16(0x5566);
writer.WriteByte(0x77);
writer.WriteUInt64(0x8899aabbccddeeff);
writer.WriteInt32(-1);
writer.WriteInt16(-2);
writer.WriteSByte(-3);
writer.WriteBoolean(true);
writer.WriteBoolean(false);
writer.WriteInt64(unchecked((long)0xfedcba0987654321));
writer.WriteDateTime(new DateTime(0x1112223334445556));
writer.WriteDecimal(102030405060.70m);
writer.WriteDouble(double.NaN);
writer.WriteSingle(float.NegativeInfinity);
var guid = new Guid("01020304-0506-0708-090A-0B0C0D0E0F10");
writer.WriteBytes(guid.ToByteArray());
writer.WriteGuid(guid);
AssertEx.Equal(new byte[]
{
0x44, 0x33, 0x22, 0x11,
0x66, 0x55,
0x77,
0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa, 0x99, 0x88,
0xff, 0xff, 0xff, 0xff,
0xfe, 0xff,
0xfd,
0x01,
0x00,
0x21, 0x43, 0x65, 0x87, 0x09, 0xBA, 0xDC, 0xFE,
0x56, 0x55, 0x44, 0x34, 0x33, 0x22, 0x12, 0x11,
0x02, 0xD6, 0xE0, 0x9A, 0x94, 0x47, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xFF,
0x00, 0x00, 0x80, 0xFF,
0x04, 0x03, 0x02, 0x01, 0x06, 0x05, 0x08, 0x07, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10,
0x04, 0x03, 0x02, 0x01, 0x06, 0x05, 0x08, 0x07, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10
}, writer.ToArray());
}
public unsafe static void Convert(BlobBuilder builder, MetadataModel metadataModel, byte[] signature, object value)
{
fixed(byte *sigPtr = signature)
{
var sigReader = new BlobReader(sigPtr, signature.Length);
// copy custom modifiers over:
byte rawTypeCode;
while (true)
{
rawTypeCode = sigReader.ReadByte();
if (rawTypeCode != (int)SignatureTypeCode.OptionalModifier && rawTypeCode != (int)SignatureTypeCode.RequiredModifier)
{
break;
}
builder.WriteByte(rawTypeCode);
builder.WriteCompressedInteger(sigReader.ReadCompressedInteger());
}
switch ((SignatureTypeCode)rawTypeCode)
{
case (SignatureTypeCode)SignatureTypeKind.Class:
case (SignatureTypeCode)SignatureTypeKind.ValueType:
int typeRefDefSpec = sigReader.ReadCompressedInteger();
if (value is decimal)
{
// GeneralConstant: VALUETYPE TypeDefOrRefOrSpecEncoded <decimal>
builder.WriteByte((byte)SignatureTypeKind.ValueType);
builder.WriteCompressedInteger(typeRefDefSpec);
builder.WriteDecimal((decimal)value);
}
else if (value is DateTime)
{
// GeneralConstant: VALUETYPE TypeDefOrRefOrSpecEncoded <date-time>
builder.WriteByte((byte)SignatureTypeKind.ValueType);
builder.WriteCompressedInteger(typeRefDefSpec);
builder.WriteDateTime((DateTime)value);
}
else if (value == null)
{
// GeneralConstant: CLASS TypeDefOrRefOrSpecEncoded
builder.WriteByte(rawTypeCode);
builder.WriteCompressedInteger(typeRefDefSpec);
}
else
{
// EnumConstant ::= EnumTypeCode EnumValue EnumType
// EnumTypeCode ::= BOOLEAN | CHAR | I1 | U1 | I2 | U2 | I4 | U4 | I8 | U8
// EnumType ::= TypeDefOrRefOrSpecEncoded
var enumTypeCode = MetadataHelpers.GetConstantTypeCode(value);
builder.WriteByte((byte)enumTypeCode);
builder.WriteConstant(value);
builder.WriteCompressedInteger(typeRefDefSpec);
}
break;
case SignatureTypeCode.Object:
// null:
Debug.Assert(value == null);
builder.WriteByte((byte)SignatureTypeCode.Object);
break;
case SignatureTypeCode.Boolean:
case SignatureTypeCode.Char:
case SignatureTypeCode.SByte:
case SignatureTypeCode.Byte:
case SignatureTypeCode.Int16:
case SignatureTypeCode.UInt16:
case SignatureTypeCode.Int32:
case SignatureTypeCode.UInt32:
case SignatureTypeCode.Int64:
case SignatureTypeCode.UInt64:
case SignatureTypeCode.Single:
case SignatureTypeCode.Double:
case SignatureTypeCode.String:
// PrimitiveConstant
builder.WriteByte(rawTypeCode);
builder.WriteConstant(value);
break;
case SignatureTypeCode.SZArray:
case SignatureTypeCode.Array:
case SignatureTypeCode.GenericTypeInstance:
Debug.Assert(value == null);
// Find an existing TypeSpec in metadata.
// If there isn't one we can't represent the constant type in the Portable PDB, use Object.
// +1/-1 for the type code we already read.
var spec = new byte[sigReader.RemainingBytes + 1];
Buffer.BlockCopy(signature, sigReader.Offset - 1, spec, 0, spec.Length);
TypeSpecificationHandle typeSpec;
if (metadataModel.TryResolveTypeSpecification(spec, out typeSpec))
{
builder.WriteCompressedInteger(CodedIndex.TypeDefOrRefOrSpec(typeSpec));
}
else
{
// TODO: warning - can't translate const type
builder.WriteByte((byte)SignatureTypeCode.Object);
}
break;
case SignatureTypeCode.GenericMethodParameter:
case SignatureTypeCode.GenericTypeParameter:
case SignatureTypeCode.FunctionPointer:
case SignatureTypeCode.Pointer:
// generic parameters, pointers are not valid types for constants:
throw new BadImageFormatException();
}
}
}
private BlobHandle SerializeLocalConstantSignature(ILocalDefinition localConstant)
{
var builder = new BlobBuilder();
// TODO: BlobEncoder.LocalConstantSignature
// CustomMod*
var encoder = new CustomModifiersEncoder(builder);
SerializeCustomModifiers(encoder, localConstant.CustomModifiers);
var type = localConstant.Type;
var typeCode = type.TypeCode;
object value = localConstant.CompileTimeValue.Value;
// PrimitiveConstant or EnumConstant
if (value is decimal)
{
builder.WriteByte((byte)SignatureTypeKind.ValueType);
builder.WriteCompressedInteger(CodedIndex.TypeDefOrRefOrSpec(GetTypeHandle(type)));
builder.WriteDecimal((decimal)value);
}
else if (value is DateTime)
{
builder.WriteByte((byte)SignatureTypeKind.ValueType);
builder.WriteCompressedInteger(CodedIndex.TypeDefOrRefOrSpec(GetTypeHandle(type)));
builder.WriteDateTime((DateTime)value);
}
else if (typeCode == PrimitiveTypeCode.String)
{
builder.WriteByte((byte)ConstantTypeCode.String);
if (value == null)
{
builder.WriteByte(0xff);
}
else
{
builder.WriteUTF16((string)value);
}
}
else if (value != null)
{
// TypeCode
builder.WriteByte((byte)GetConstantTypeCode(value));
// Value
builder.WriteConstant(value);
// EnumType
if (type.IsEnum)
{
builder.WriteCompressedInteger(CodedIndex.TypeDefOrRefOrSpec(GetTypeHandle(type)));
}
}
else if (this.module.IsPlatformType(type, PlatformType.SystemObject))
{
builder.WriteByte((byte)SignatureTypeCode.Object);
}
else
{
builder.WriteByte((byte)(type.IsValueType ? SignatureTypeKind.ValueType : SignatureTypeKind.Class));
builder.WriteCompressedInteger(CodedIndex.TypeDefOrRefOrSpec(GetTypeHandle(type)));
}
return(_debugMetadataOpt.GetOrAddBlob(builder));
}