private void ResolveFields(
ObjectType type,
ISelectionNode selection,
Path path,
FieldVisibility fieldVisibility,
IDictionary <string, FieldInfo> fields)
{
if (selection is FieldNode fs)
{
ResolveFieldSelection(
type,
fs,
path,
fieldVisibility,
fields);
}
else if (selection is FragmentSpreadNode fragSpread)
{
ResolveFragmentSpread(
type,
fragSpread,
path,
fieldVisibility,
fields);
}
else if (selection is InlineFragmentNode inlineFrag)
{
ResolveInlineFragment(
type,
inlineFrag,
path,
fieldVisibility,
fields);
}
}
public FieldVisibility(
IValueNode skip,
IValueNode include,
FieldVisibility parent)
{
Skip = skip;
Include = include;
Parent = parent;
}
private static void TryAddFieldVisibility(
FieldInfo fieldInfo,
FieldVisibility fieldVisibility)
{
if (fieldVisibility != null)
{
if (fieldInfo.Visibilities == null)
{
fieldInfo.Visibilities =
new List <FieldVisibility>();
}
fieldInfo.Visibilities.Add(fieldVisibility);
}
}
private static FieldVisibility ExtractVisibility(
Language.IHasDirectives selection,
FieldVisibility fieldVisibility)
{
IValueNode skip = selection.Directives.SkipValue();
IValueNode include = selection.Directives.IncludeValue();
if (skip == null && include == null)
{
return(fieldVisibility);
}
return(new FieldVisibility(skip, include, fieldVisibility));
}
private void CollectFields(
ObjectType type,
SelectionSetNode selectionSet,
Path path,
FieldVisibility fieldVisibility,
IDictionary <string, FieldInfo> fields)
{
foreach (ISelectionNode selection in selectionSet.Selections)
{
ResolveFields(
type,
selection,
path,
ExtractVisibility(selection, fieldVisibility),
fields);
}
}
private void ResolveFieldSelection(
ObjectType type,
FieldNode fieldSelection,
Path path,
FieldVisibility fieldVisibility,
IDictionary <string, FieldInfo> fields)
{
NameString fieldName = fieldSelection.Name.Value;
NameString responseName = fieldSelection.Alias == null
? fieldSelection.Name.Value
: fieldSelection.Alias.Value;
if (type.Fields.TryGetField(fieldName, out ObjectField field))
{
if (fields.TryGetValue(responseName, out FieldInfo fieldInfo))
{
AddSelection(fieldInfo, fieldSelection);
TryAddFieldVisibility(fieldInfo, fieldVisibility);
}
else
{
fieldInfo = new FieldInfo
{
Field = field,
ResponseName = responseName,
Selection = fieldSelection,
Path = path
};
TryAddFieldVisibility(fieldInfo, fieldVisibility);
CoerceArgumentValues(fieldInfo);
fields.Add(responseName, fieldInfo);
}
}
else
{
throw new QueryException(ErrorBuilder.New()
.SetMessage(CoreResources.FieldCollector_FieldNotFound)
.SetPath(path)
.AddLocation(fieldSelection)
.Build());
}
}
private void ResolveInlineFragment(
ObjectType type,
InlineFragmentNode inlineFragment,
Path path,
FieldVisibility fieldVisibility,
IDictionary <string, FieldInfo> fields)
{
Fragment fragment = _fragments.GetFragment(type, inlineFragment);
if (DoesTypeApply(fragment.TypeCondition, type))
{
CollectFields(
type,
fragment.SelectionSet,
path,
fieldVisibility,
fields);
}
}
private void ResolveFragmentSpread(
ObjectType type,
FragmentSpreadNode fragmentSpread,
Path path,
FieldVisibility fieldVisibility,
IDictionary <string, FieldInfo> fields)
{
Fragment fragment = _fragments.GetFragment(
fragmentSpread.Name.Value);
if (fragment != null && DoesTypeApply(fragment.TypeCondition, type))
{
CollectFields(
type,
fragment.SelectionSet,
path,
fieldVisibility,
fields);
}
}
