private static TypeSymbol ResolveIntrinsicVectorType(VectorTypeSyntax type)
{
var vectorType = SyntaxFacts.GetVectorType(type.TypeToken.Kind);
var scalarType = vectorType.Item1;
var numComponents = vectorType.Item2;
return(IntrinsicTypes.GetVectorType(scalarType, numComponents));
}
private TypeSymbol ResolveIntrinsicObjectType(PredefinedObjectTypeSyntax type, ISymbolTable symbolTable, Symbol contextSymbol)
{
var predefinedObjectType = SyntaxFacts.GetPredefinedObjectType(type.ObjectTypeToken.Kind);
switch (predefinedObjectType)
{
case PredefinedObjectType.Buffer:
case PredefinedObjectType.Texture1D:
case PredefinedObjectType.Texture1DArray:
case PredefinedObjectType.Texture2D:
case PredefinedObjectType.Texture2DArray:
case PredefinedObjectType.Texture3D:
case PredefinedObjectType.TextureCube:
case PredefinedObjectType.TextureCubeArray:
case PredefinedObjectType.Texture2DMS:
case PredefinedObjectType.Texture2DMSArray:
{
TypeSymbol valueType;
ScalarType scalarType;
if (type.TemplateArgumentList != null)
{
var valueTypeSyntax = type.TemplateArgumentList.Arguments[0];
valueType = ResolveIntrinsicType((PredefinedTypeSyntax)valueTypeSyntax, symbolTable, contextSymbol);
switch (valueTypeSyntax.Kind)
{
case SyntaxKind.PredefinedScalarType:
scalarType = SyntaxFacts.GetScalarType(((ScalarTypeSyntax)valueTypeSyntax).TypeTokens.Select(x => x.Kind).ToArray());
break;
case SyntaxKind.PredefinedVectorType:
scalarType = SyntaxFacts.GetVectorType(((VectorTypeSyntax)valueTypeSyntax).TypeToken.Kind).Item1;
break;
case SyntaxKind.PredefinedGenericVectorType:
scalarType = SyntaxFacts.GetScalarType(((GenericVectorTypeSyntax)valueTypeSyntax).ScalarType.TypeTokens.Select(x => x.Kind).ToArray());
break;
default:
throw new ArgumentOutOfRangeException();
}
}
else
{
valueType = IntrinsicTypes.Float4;
scalarType = ScalarType.Float;
}
return(IntrinsicTypes.CreateTextureType(predefinedObjectType, valueType, scalarType));
}
case PredefinedObjectType.RWBuffer:
case PredefinedObjectType.RWTexture1D:
case PredefinedObjectType.RWTexture1DArray:
case PredefinedObjectType.RWTexture2D:
case PredefinedObjectType.RWTexture2DArray:
case PredefinedObjectType.RWTexture3D:
throw new NotImplementedException();
case PredefinedObjectType.AppendStructuredBuffer:
case PredefinedObjectType.ConsumeStructuredBuffer:
case PredefinedObjectType.StructuredBuffer:
{
var valueTypeSyntax = (TypeSyntax)type.TemplateArgumentList.Arguments[0];
var valueType = ResolveType(valueTypeSyntax, symbolTable, contextSymbol);
switch (predefinedObjectType)
{
case PredefinedObjectType.AppendStructuredBuffer:
return(IntrinsicTypes.CreateAppendStructuredBufferType(valueType));
case PredefinedObjectType.ConsumeStructuredBuffer:
return(IntrinsicTypes.CreateConsumeStructuredBufferType(valueType));
case PredefinedObjectType.StructuredBuffer:
return(IntrinsicTypes.CreateStructuredBufferType(valueType));
default:
throw new ArgumentOutOfRangeException();
}
}
case PredefinedObjectType.ByteAddressBuffer:
return(IntrinsicTypes.CreateByteAddressBufferType());
case PredefinedObjectType.RWByteAddressBuffer:
case PredefinedObjectType.RWStructuredBuffer:
case PredefinedObjectType.InputPatch:
case PredefinedObjectType.OutputPatch:
case PredefinedObjectType.PointStream:
case PredefinedObjectType.LineStream:
case PredefinedObjectType.TriangleStream:
throw new NotImplementedException();
case PredefinedObjectType.Sampler:
case PredefinedObjectType.SamplerState:
return(IntrinsicTypes.SamplerState);
case PredefinedObjectType.SamplerComparisonState:
return(IntrinsicTypes.SamplerComparisonState);
default:
throw new ArgumentOutOfRangeException();
}
}
