private void AppendTupleElements(
StringBuilder builder,
Type type,
int cardinality,
ReadOnlyCollection <byte> dynamicFlags,
ref int dynamicFlagIndex,
ReadOnlyCollection <string> tupleElementNames,
ref int tupleElementIndex,
bool escapeKeywordIdentifiers,
out bool sawInvalidIdentifier)
{
sawInvalidIdentifier = false;
int nameIndex = tupleElementIndex;
tupleElementIndex += cardinality;
builder.Append('(');
bool any = false;
while (true)
{
var typeArguments = type.GetGenericArguments();
int nTypeArgs = typeArguments.Length;
Debug.Assert(nTypeArgs > 0);
Debug.Assert(nTypeArgs <= TypeHelpers.TupleFieldRestPosition);
int nFields = Math.Min(nTypeArgs, TypeHelpers.TupleFieldRestPosition - 1);
for (int i = 0; i < nFields; i++)
{
if (any)
{
builder.Append(", ");
}
bool sawSingleInvalidIdentifier;
var name = CustomTypeInfo.GetTupleElementNameIfAny(tupleElementNames, nameIndex);
nameIndex++;
AppendTupleElement(
builder,
typeArguments[i],
name,
dynamicFlags,
ref dynamicFlagIndex,
tupleElementNames,
ref tupleElementIndex,
escapeKeywordIdentifiers,
sawInvalidIdentifier: out sawSingleInvalidIdentifier);
sawInvalidIdentifier |= sawSingleInvalidIdentifier;
any = true;
}
if (nTypeArgs < TypeHelpers.TupleFieldRestPosition)
{
break;
}
Debug.Assert(!DynamicFlagsCustomTypeInfo.GetFlag(dynamicFlags, dynamicFlagIndex));
dynamicFlagIndex++;
type = typeArguments[nTypeArgs - 1];
}
builder.Append(')');
}
private static Fields GetFields(TypeAndCustomInfo declaringTypeAndInfo, int cardinality, bool useRawView)
{
Debug.Assert(declaringTypeAndInfo.Type.GetTupleCardinalityIfAny() == cardinality);
var appDomain = declaringTypeAndInfo.ClrType.AppDomain;
var customTypeInfoMap = CustomTypeInfoTypeArgumentMap.Create(declaringTypeAndInfo);
var tupleElementNames = customTypeInfoMap.TupleElementNames;
var builder = ArrayBuilder <Field> .GetInstance();
Field parent = null;
int offset = 0;
bool includeRawView = false;
while (true)
{
var declaringType = declaringTypeAndInfo.Type;
int n = Math.Min(cardinality, TypeHelpers.TupleFieldRestPosition - 1);
for (int index = 0; index < n; index++)
{
var fieldName = TypeHelpers.GetTupleFieldName(index);
var field = declaringType.GetTupleField(fieldName);
if (field == null)
{
// Ignore missing fields.
continue;
}
var fieldTypeAndInfo = GetTupleFieldTypeAndInfo(appDomain, field, customTypeInfoMap);
if (!useRawView)
{
var name = CustomTypeInfo.GetTupleElementNameIfAny(tupleElementNames, offset + index);
if (name != null)
{
includeRawView = true;
builder.Add(new Field(declaringTypeAndInfo, fieldTypeAndInfo, field, name, parent, isRest: false));
continue;
}
}
builder.Add(new Field(
declaringTypeAndInfo,
fieldTypeAndInfo,
field,
(offset == 0) ? fieldName : TypeHelpers.GetTupleFieldName(offset + index),
parent,
isRest: false));
}
cardinality -= n;
if (cardinality == 0)
{
break;
}
var rest = declaringType.GetTupleField(TypeHelpers.TupleFieldRestName);
if (rest == null)
{
// Ignore remaining fields.
break;
}
var restTypeAndInfo = GetTupleFieldTypeAndInfo(appDomain, rest, customTypeInfoMap);
var restField = new Field(declaringTypeAndInfo, restTypeAndInfo, rest, TypeHelpers.TupleFieldRestName, parent, isRest: true);
if (useRawView)
{
builder.Add(restField);
break;
}
includeRawView = true;
parent = restField;
declaringTypeAndInfo = restTypeAndInfo;
offset += TypeHelpers.TupleFieldRestPosition - 1;
}
return(new Fields(builder.ToImmutableAndFree(), includeRawView));
}
private static ReadOnlyCollection <Field> GetFields(TypeAndCustomInfo declaringTypeAndInfo, int cardinality)
{
Debug.Assert(declaringTypeAndInfo.Type.GetTupleCardinalityIfAny() == cardinality);
var appDomain = declaringTypeAndInfo.ClrType.AppDomain;
var customTypeInfoMap = CustomTypeInfoTypeArgumentMap.Create(declaringTypeAndInfo);
var tupleElementNames = customTypeInfoMap.TupleElementNames;
var builder = ArrayBuilder <Field> .GetInstance();
Field parent = null;
int offset = 0;
while (true)
{
var declaringType = declaringTypeAndInfo.Type;
int n = Math.Min(cardinality, TypeHelpers.TupleFieldRestPosition - 1);
for (int index = 0; index < n; index++)
{
var fieldName = TypeHelpers.GetTupleFieldName(index);
var field = declaringType.GetTupleField(fieldName);
if (field == null)
{
// Ignore missing fields.
continue;
}
var fieldTypeAndInfo = GetTupleFieldTypeAndInfo(appDomain, field, customTypeInfoMap);
var name = CustomTypeInfo.GetTupleElementNameIfAny(tupleElementNames, offset + index);
if (name != null)
{
builder.Add(new Field(declaringTypeAndInfo, fieldTypeAndInfo, field, name, parent));
}
builder.Add(new Field(
declaringTypeAndInfo,
fieldTypeAndInfo,
field,
(offset == 0) ? fieldName : TypeHelpers.GetTupleFieldName(offset + index),
parent));
}
cardinality -= n;
if (cardinality == 0)
{
break;
}
var rest = declaringType.GetTupleField(TypeHelpers.TupleFieldRestName);
if (rest == null)
{
// Ignore remaining fields.
break;
}
var restTypeAndInfo = GetTupleFieldTypeAndInfo(appDomain, rest, customTypeInfoMap);
parent = new Field(declaringTypeAndInfo, restTypeAndInfo, rest, TypeHelpers.TupleFieldRestName, parent);
declaringTypeAndInfo = restTypeAndInfo;
offset += TypeHelpers.TupleFieldRestPosition - 1;
}
// If there were any nested ValueTuples,
// add the Rest field of the outermost.
if (parent != null)
{
while (parent.Parent != null)
{
parent = parent.Parent;
}
builder.Add(parent);
}
return(builder.ToImmutableAndFree());
}