/// <summary>
/// Starts a function pointer signature.
/// </summary>
/// <param name="convention">Calling convention.</param>
/// <param name="attributes">Function pointer attributes.</param>
/// <param name="genericParameterCount">Generic parameter count.</param>
/// <exception cref="ArgumentException"><paramref name="attributes"/> is invalid.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="genericParameterCount"/> is not in range [0, 0xffff].</exception>
public MethodSignatureEncoder FunctionPointer(
SignatureCallingConvention convention = SignatureCallingConvention.Default,
FunctionPointerAttributes attributes = FunctionPointerAttributes.None,
int genericParameterCount = 0)
{
// Spec:
// The EXPLICITTHIS (0x40) bit can be set only in signatures for function pointers.
// If EXPLICITTHIS (0x40) in the signature is set, then HASTHIS (0x20) shall also be set.
if (attributes != FunctionPointerAttributes.None &&
attributes != FunctionPointerAttributes.HasThis &&
attributes != FunctionPointerAttributes.HasExplicitThis)
{
throw new ArgumentException(SR.InvalidSignature, nameof(attributes));
}
if (unchecked ((uint)genericParameterCount) > ushort.MaxValue)
{
Throw.ArgumentOutOfRange(nameof(genericParameterCount));
}
Builder.WriteByte((byte)SignatureTypeCode.FunctionPointer);
Builder.WriteByte(new SignatureHeader(SignatureKind.Method, convention, (SignatureAttributes)attributes).RawValue);
if (genericParameterCount != 0)
{
Builder.WriteCompressedInteger(genericParameterCount);
}
return(new MethodSignatureEncoder(Builder, hasVarArgs: convention == SignatureCallingConvention.VarArgs));
}
public MethodSignatureEncoder FunctionPointer(SignatureCallingConvention convention, FunctionPointerAttributes attributes, int genericParameterCount)
{
// Spec:
// The EXPLICITTHIS (0x40) bit can be set only in signatures for function pointers.
// If EXPLICITTHIS (0x40) in the signature is set, then HASTHIS (0x20) shall also be set.
if (attributes != FunctionPointerAttributes.None &&
attributes != FunctionPointerAttributes.HasThis &&
attributes != FunctionPointerAttributes.HasExplicitThis)
{
throw new ArgumentException(nameof(attributes));
}
Builder.WriteByte((byte)SignatureTypeCode.FunctionPointer);
Builder.WriteByte(BlobEncoder.SignatureHeader(SignatureKind.Method, convention, (SignatureAttributes)attributes).RawValue);
if (genericParameterCount != 0)
{
Builder.WriteCompressedInteger(genericParameterCount);
}
return new MethodSignatureEncoder(Builder, isVarArg: convention == SignatureCallingConvention.VarArgs);
}
public MethodSignatureEncoder FunctionPointer(SignatureCallingConvention convention, FunctionPointerAttributes attributes, int genericParameterCount)
{
// Spec:
// The EXPLICITTHIS (0x40) bit can be set only in signatures for function pointers.
// If EXPLICITTHIS (0x40) in the signature is set, then HASTHIS (0x20) shall also be set.
if (attributes != FunctionPointerAttributes.None &&
attributes != FunctionPointerAttributes.HasThis &&
attributes != FunctionPointerAttributes.HasExplicitThis)
{
throw new ArgumentException(nameof(attributes));
}
Builder.WriteByte((byte)SignatureTypeCode.FunctionPointer);
Builder.WriteByte(BlobEncoder.SignatureHeader(SignatureKind.Method, convention, (SignatureAttributes)attributes).RawValue);
if (genericParameterCount != 0)
{
Builder.WriteCompressedInteger(genericParameterCount);
}
return(new MethodSignatureEncoder(Builder, isVarArg: convention == SignatureCallingConvention.VarArgs));
}
/// <summary>
/// Starts a function pointer signature.
/// </summary>
/// <param name="convention">Calling convention.</param>
/// <param name="attributes">Function pointer attributes.</param>
/// <param name="genericParameterCount">Generic parameter count.</param>
/// <exception cref="ArgumentException"><paramref name="attributes"/> is invalid.</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="genericParameterCount"/> is not in range [0, 0xffff].</exception>
public MethodSignatureEncoder FunctionPointer(
SignatureCallingConvention convention = SignatureCallingConvention.Default,
FunctionPointerAttributes attributes = FunctionPointerAttributes.None,
int genericParameterCount = 0)
{
// Spec:
// The EXPLICITTHIS (0x40) bit can be set only in signatures for function pointers.
// If EXPLICITTHIS (0x40) in the signature is set, then HASTHIS (0x20) shall also be set.
if (attributes != FunctionPointerAttributes.None &&
attributes != FunctionPointerAttributes.HasThis &&
attributes != FunctionPointerAttributes.HasExplicitThis)
{
throw new ArgumentException(SR.InvalidSignature, nameof(attributes));
}
if (unchecked((uint)genericParameterCount) > ushort.MaxValue)
{
Throw.ArgumentOutOfRange(nameof(genericParameterCount));
}
Builder.WriteByte((byte)SignatureTypeCode.FunctionPointer);
Builder.WriteByte(new SignatureHeader(SignatureKind.Method, convention, (SignatureAttributes)attributes).RawValue);
if (genericParameterCount != 0)
{
Builder.WriteCompressedInteger(genericParameterCount);
}
return new MethodSignatureEncoder(Builder, hasVarArgs: convention == SignatureCallingConvention.VarArgs);
}
