1e87553788
## Summary: In this commit I remove one of the limitations of our support for interfaces, from #52, by adding support for list-of-interface fields. This was surprisingly complex! The issue is that, as before, it's the containing type that has to do all the glue work -- and it's that glue work that is complicated by list-of-interface fields. All in all, it's not that much new code, and by far the hard part is just 20 lines in the UnmarshalJSON template (which come with almost twice as many lines of comments to explain them). It may be easiest to start by reading some of the generated code, and then read the template. I also added support for such fields with `pointer: true` specified, such that the type is `[][]...[]*MyInterface`, although I don't know why you would want that. This does *not* allow e.g. `*[]*[][]*MyInterface`; that would require a way to specify it (see #16) but also add some extra complexity (as we'd have to actually walk the type-unwrap chain properly, instead of just counting the number of slices and whether there's a pointer). Issue: https://github.com/Khan/genqlient/issues/8 ## Test plan: make check Author: benjaminjkraft Reviewers: dnerdy, benjaminjkraft, aberkan, csilvers, MiguelCastillo Required Reviewers: Approved by: dnerdy Checks: ⌛ Test (1.17), ⌛ Test (1.16), ⌛ Test (1.15), ⌛ Test (1.14), ⌛ Test (1.13), ⌛ Lint, ⌛ Lint, ⌛ Test (1.17), ⌛ Test (1.16), ⌛ Test (1.15), ⌛ Test (1.14), ⌛ Test (1.13) Pull request URL: https://github.com/Khan/genqlient/pull/54
272 lines
8.0 KiB
Go
272 lines
8.0 KiB
Go
package test
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// Code generated by github.com/Khan/genqlient, DO NOT EDIT.
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import (
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"encoding/json"
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"fmt"
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"github.com/Khan/genqlient/graphql"
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"github.com/Khan/genqlient/internal/testutil"
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)
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// InterfaceListFieldResponse is returned by InterfaceListField on success.
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type InterfaceListFieldResponse struct {
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Root InterfaceListFieldRootTopic `json:"root"`
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WithPointer *InterfaceListFieldWithPointerTopic `json:"withPointer"`
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}
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// InterfaceListFieldRootTopic includes the requested fields of the GraphQL type Topic.
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type InterfaceListFieldRootTopic struct {
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// ID is documented in the Content interface.
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Id testutil.ID `json:"id"`
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Name string `json:"name"`
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Children []InterfaceListFieldRootTopicChildrenContent `json:"-"`
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}
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func (v *InterfaceListFieldRootTopic) UnmarshalJSON(b []byte) error {
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type InterfaceListFieldRootTopicWrapper InterfaceListFieldRootTopic
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var firstPass struct {
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*InterfaceListFieldRootTopicWrapper
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Children []json.RawMessage `json:"children"`
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}
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firstPass.InterfaceListFieldRootTopicWrapper = (*InterfaceListFieldRootTopicWrapper)(v)
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err := json.Unmarshal(b, &firstPass)
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if err != nil {
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return err
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}
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{
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target := &v.Children
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raw := firstPass.Children
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*target = make(
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[]InterfaceListFieldRootTopicChildrenContent,
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len(raw))
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for i, raw := range raw {
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target := &(*target)[i]
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err = __unmarshalInterfaceListFieldRootTopicChildrenContent(
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target, raw)
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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// InterfaceListFieldRootTopicChildrenArticle includes the requested fields of the GraphQL type Article.
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type InterfaceListFieldRootTopicChildrenArticle struct {
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Typename string `json:"__typename"`
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// ID is the identifier of the content.
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Id testutil.ID `json:"id"`
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Name string `json:"name"`
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}
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// InterfaceListFieldRootTopicChildrenContent includes the requested fields of the GraphQL type Content.
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// The GraphQL type's documentation follows.
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//
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// Content is implemented by various types like Article, Video, and Topic.
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type InterfaceListFieldRootTopicChildrenContent interface {
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implementsGraphQLInterfaceInterfaceListFieldRootTopicChildrenContent()
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}
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func (v *InterfaceListFieldRootTopicChildrenArticle) implementsGraphQLInterfaceInterfaceListFieldRootTopicChildrenContent() {
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}
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func (v *InterfaceListFieldRootTopicChildrenVideo) implementsGraphQLInterfaceInterfaceListFieldRootTopicChildrenContent() {
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}
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func (v *InterfaceListFieldRootTopicChildrenTopic) implementsGraphQLInterfaceInterfaceListFieldRootTopicChildrenContent() {
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}
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func __unmarshalInterfaceListFieldRootTopicChildrenContent(v *InterfaceListFieldRootTopicChildrenContent, m json.RawMessage) error {
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if string(m) == "null" {
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return nil
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}
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var tn struct {
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TypeName string `json:"__typename"`
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}
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err := json.Unmarshal(m, &tn)
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if err != nil {
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return err
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}
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switch tn.TypeName {
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case "Article":
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*v = new(InterfaceListFieldRootTopicChildrenArticle)
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return json.Unmarshal(m, *v)
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case "Video":
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*v = new(InterfaceListFieldRootTopicChildrenVideo)
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return json.Unmarshal(m, *v)
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case "Topic":
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*v = new(InterfaceListFieldRootTopicChildrenTopic)
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return json.Unmarshal(m, *v)
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default:
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return fmt.Errorf(
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`Unexpected concrete type for InterfaceListFieldRootTopicChildrenContent: "%v"`, tn.TypeName)
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}
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}
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// InterfaceListFieldRootTopicChildrenTopic includes the requested fields of the GraphQL type Topic.
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type InterfaceListFieldRootTopicChildrenTopic struct {
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Typename string `json:"__typename"`
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// ID is the identifier of the content.
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Id testutil.ID `json:"id"`
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Name string `json:"name"`
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}
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// InterfaceListFieldRootTopicChildrenVideo includes the requested fields of the GraphQL type Video.
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type InterfaceListFieldRootTopicChildrenVideo struct {
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Typename string `json:"__typename"`
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// ID is the identifier of the content.
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Id testutil.ID `json:"id"`
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Name string `json:"name"`
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}
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// InterfaceListFieldWithPointerTopic includes the requested fields of the GraphQL type Topic.
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type InterfaceListFieldWithPointerTopic struct {
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// ID is documented in the Content interface.
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Id testutil.ID `json:"id"`
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Name string `json:"name"`
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Children []InterfaceListFieldWithPointerTopicChildrenContent `json:"-"`
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}
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func (v *InterfaceListFieldWithPointerTopic) UnmarshalJSON(b []byte) error {
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type InterfaceListFieldWithPointerTopicWrapper InterfaceListFieldWithPointerTopic
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var firstPass struct {
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*InterfaceListFieldWithPointerTopicWrapper
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Children []json.RawMessage `json:"children"`
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}
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firstPass.InterfaceListFieldWithPointerTopicWrapper = (*InterfaceListFieldWithPointerTopicWrapper)(v)
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err := json.Unmarshal(b, &firstPass)
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if err != nil {
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return err
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}
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{
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target := &v.Children
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raw := firstPass.Children
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*target = make(
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[]InterfaceListFieldWithPointerTopicChildrenContent,
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len(raw))
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for i, raw := range raw {
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target := &(*target)[i]
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err = __unmarshalInterfaceListFieldWithPointerTopicChildrenContent(
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target, raw)
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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// InterfaceListFieldWithPointerTopicChildrenArticle includes the requested fields of the GraphQL type Article.
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type InterfaceListFieldWithPointerTopicChildrenArticle struct {
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Typename string `json:"__typename"`
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// ID is the identifier of the content.
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Id testutil.ID `json:"id"`
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Name string `json:"name"`
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}
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// InterfaceListFieldWithPointerTopicChildrenContent includes the requested fields of the GraphQL type Content.
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// The GraphQL type's documentation follows.
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//
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// Content is implemented by various types like Article, Video, and Topic.
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type InterfaceListFieldWithPointerTopicChildrenContent interface {
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implementsGraphQLInterfaceInterfaceListFieldWithPointerTopicChildrenContent()
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}
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func (v *InterfaceListFieldWithPointerTopicChildrenArticle) implementsGraphQLInterfaceInterfaceListFieldWithPointerTopicChildrenContent() {
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}
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func (v *InterfaceListFieldWithPointerTopicChildrenVideo) implementsGraphQLInterfaceInterfaceListFieldWithPointerTopicChildrenContent() {
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}
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func (v *InterfaceListFieldWithPointerTopicChildrenTopic) implementsGraphQLInterfaceInterfaceListFieldWithPointerTopicChildrenContent() {
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}
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func __unmarshalInterfaceListFieldWithPointerTopicChildrenContent(v *InterfaceListFieldWithPointerTopicChildrenContent, m json.RawMessage) error {
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if string(m) == "null" {
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return nil
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}
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var tn struct {
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TypeName string `json:"__typename"`
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}
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err := json.Unmarshal(m, &tn)
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if err != nil {
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return err
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}
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switch tn.TypeName {
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case "Article":
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*v = new(InterfaceListFieldWithPointerTopicChildrenArticle)
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return json.Unmarshal(m, *v)
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case "Video":
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*v = new(InterfaceListFieldWithPointerTopicChildrenVideo)
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return json.Unmarshal(m, *v)
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case "Topic":
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*v = new(InterfaceListFieldWithPointerTopicChildrenTopic)
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return json.Unmarshal(m, *v)
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default:
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return fmt.Errorf(
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`Unexpected concrete type for InterfaceListFieldWithPointerTopicChildrenContent: "%v"`, tn.TypeName)
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}
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}
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// InterfaceListFieldWithPointerTopicChildrenTopic includes the requested fields of the GraphQL type Topic.
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type InterfaceListFieldWithPointerTopicChildrenTopic struct {
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Typename string `json:"__typename"`
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// ID is the identifier of the content.
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Id testutil.ID `json:"id"`
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Name string `json:"name"`
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}
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// InterfaceListFieldWithPointerTopicChildrenVideo includes the requested fields of the GraphQL type Video.
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type InterfaceListFieldWithPointerTopicChildrenVideo struct {
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Typename string `json:"__typename"`
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// ID is the identifier of the content.
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Id testutil.ID `json:"id"`
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Name string `json:"name"`
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}
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func InterfaceListField(
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client graphql.Client,
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) (*InterfaceListFieldResponse, error) {
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var retval InterfaceListFieldResponse
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err := client.MakeRequest(
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nil,
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"InterfaceListField",
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`
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query InterfaceListField {
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root {
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id
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name
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children {
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__typename
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id
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name
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}
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}
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withPointer: root {
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id
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name
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children {
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__typename
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id
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name
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}
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}
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}
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`,
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&retval,
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nil,
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)
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return &retval, err
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}
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