private void ResolveFragmentSpread(
            CompilerContext context,
            FragmentSpreadNode fragmentSpread,
            SelectionIncludeCondition?includeCondition)
        {
            if (_fragments.GetFragment(fragmentSpread.Name.Value) is { } fragmentInfo&&
                DoesTypeApply(fragmentInfo.TypeCondition, context.Type))
            {
                FragmentDefinitionNode fragmentDefinition = fragmentInfo.FragmentDefinition !;

                if (fragmentSpread.IsDeferrable() &&
                    AllowFragmentDeferral(context, fragmentSpread, fragmentDefinition))
                {
                    CompilerContext deferContext = context.Branch(fragmentInfo);
                    CompileSelectionSet(deferContext);

                    context.RegisterFragment(new Fragment(
                                                 context.Type,
                                                 fragmentSpread,
                                                 fragmentDefinition,
                                                 deferContext.GetSelectionSet(),
                                                 context.IsInternalSelection,
                                                 includeCondition));
                }
                else
                {
                    CollectFields(
                        context,
                        fragmentInfo.SelectionSet,
                        includeCondition);
                }
            }
        }
Ejemplo n.º 2
0
        private void ResolveFragmentSpread(
            CompilerContext context,
            FragmentSpreadNode fragmentSpread,
            SelectionIncludeCondition?includeCondition)
        {
            if (_fragments.GetFragment(fragmentSpread.Name.Value) is { } fragmentInfo&&
                DoesTypeApply(fragmentInfo.TypeCondition, context.Type))
            {
                FragmentDefinitionNode fragmentDefinition = fragmentInfo.FragmentDefinition !;

                if (fragmentDefinition.SelectionSet.Selections.Count == 0)
                {
                    throw OperationCompiler_FragmentNoSelections(fragmentDefinition);
                }

                var reference = new SpreadReference(context.SelectionPath, fragmentSpread);

                if (!context.Spreads.TryGetValue(reference, out var selectionSet))
                {
                    selectionSet = fragmentDefinition.SelectionSet.WithSelections(
                        fragmentDefinition.SelectionSet.Selections);
                    context.Spreads.Add(reference, selectionSet);
                }

                if (fragmentSpread.IsDeferrable() &&
                    AllowFragmentDeferral(context, fragmentSpread, fragmentDefinition))
                {
                    CompilerContext deferContext = context.Branch(selectionSet);
                    CompileSelectionSet(deferContext);

                    context.RegisterFragment(new Fragment(
                                                 _nextFragmentId++,
                                                 context.Type,
                                                 fragmentSpread,
                                                 fragmentDefinition,
                                                 deferContext.GetSelectionSet(),
                                                 context.IsInternalSelection,
                                                 includeCondition));
                }
                else
                {
                    CollectFields(context, selectionSet, includeCondition);
                }
            }
        }