## Summary: This is useful if you want to bind to a type you don't control (or use for other things) but need different serialization than its default. This is a feature gqlgen has and we've found it very useful. For example, in webapp we want to bind `DateTime` to `time.Time`, but its default serialization is not compatible with Python, so currently we have to bind to a wrapper type and cast all over the place, which is exactly the sort of boilerplate genqlient is supposed to avoid. For unmarshaling, the implementation basically just follows the existing support for abstract types; instead of calling our own generated helper, we now call your specified function. This required some refactoring to abstract the handling of custom unmarshalers generally from abstract types specifically, and to wire in not only the unmarshaler-name but also the `generator` (in order to compute the right import alias). For marshaling, I had to implement all that stuff over again; it's mostly parallel to unmarshaling (and I made a few minor changes to unmarshaling to make the two more parallel). Luckily, after #103 I at least only had to do it once, rather than implementing the same functionality for arguments and for input-type fields. It was still quite a bit of code; I didn't try to be quite as completionist about the tests as with unmarshal but still had to add a few. Issue: https://github.com/Khan/genqlient/issues/38 ## Test plan: make check Author: benjaminjkraft Reviewers: StevenACoffman, dnerdy, benjaminjkraft, aberkan, jvoll, mahtabsabet, MiguelCastillo Required Reviewers: Approved By: StevenACoffman, dnerdy Checks: ✅ Test (1.17), ✅ Test (1.16), ✅ Test (1.15), ✅ Test (1.14), ✅ Lint, ✅ Test (1.17), ✅ Test (1.16), ✅ Test (1.15), ✅ Test (1.14), ✅ Lint Pull Request URL: https://github.com/Khan/genqlient/pull/104
346 lines
10 KiB
Go
346 lines
10 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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// SimpleNamedFragmentRandomItemArticle includes the requested fields of the GraphQL type Article.
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type SimpleNamedFragmentRandomItemArticle 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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// SimpleNamedFragmentRandomItemContent includes the requested fields of the GraphQL interface Content.
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//
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// SimpleNamedFragmentRandomItemContent is implemented by the following types:
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// SimpleNamedFragmentRandomItemArticle
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// SimpleNamedFragmentRandomItemVideo
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// SimpleNamedFragmentRandomItemTopic
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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 SimpleNamedFragmentRandomItemContent interface {
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implementsGraphQLInterfaceSimpleNamedFragmentRandomItemContent()
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// GetTypename returns the receiver's concrete GraphQL type-name (see interface doc for possible values).
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GetTypename() string
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// GetId returns the interface-field "id" from its implementation.
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// The GraphQL interface field's documentation follows.
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//
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// ID is the identifier of the content.
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GetId() testutil.ID
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// GetName returns the interface-field "name" from its implementation.
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GetName() string
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}
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func (v *SimpleNamedFragmentRandomItemArticle) implementsGraphQLInterfaceSimpleNamedFragmentRandomItemContent() {
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}
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// GetTypename is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemArticle) GetTypename() string { return v.Typename }
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// GetId is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemArticle) GetId() testutil.ID { return v.Id }
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// GetName is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemArticle) GetName() string { return v.Name }
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func (v *SimpleNamedFragmentRandomItemVideo) implementsGraphQLInterfaceSimpleNamedFragmentRandomItemContent() {
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}
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// GetTypename is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemVideo) GetTypename() string { return v.Typename }
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// GetId is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemVideo) GetId() testutil.ID { return v.Id }
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// GetName is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemVideo) GetName() string { return v.Name }
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func (v *SimpleNamedFragmentRandomItemTopic) implementsGraphQLInterfaceSimpleNamedFragmentRandomItemContent() {
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}
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// GetTypename is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemTopic) GetTypename() string { return v.Typename }
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// GetId is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemTopic) GetId() testutil.ID { return v.Id }
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// GetName is a part of, and documented with, the interface SimpleNamedFragmentRandomItemContent.
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func (v *SimpleNamedFragmentRandomItemTopic) GetName() string { return v.Name }
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func __unmarshalSimpleNamedFragmentRandomItemContent(b []byte, v *SimpleNamedFragmentRandomItemContent) error {
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if string(b) == "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(b, &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(SimpleNamedFragmentRandomItemArticle)
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return json.Unmarshal(b, *v)
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case "Video":
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*v = new(SimpleNamedFragmentRandomItemVideo)
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return json.Unmarshal(b, *v)
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case "Topic":
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*v = new(SimpleNamedFragmentRandomItemTopic)
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return json.Unmarshal(b, *v)
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case "":
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return fmt.Errorf(
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"Response was missing Content.__typename")
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default:
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return fmt.Errorf(
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`Unexpected concrete type for SimpleNamedFragmentRandomItemContent: "%v"`, tn.TypeName)
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}
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}
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// SimpleNamedFragmentRandomItemTopic includes the requested fields of the GraphQL type Topic.
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type SimpleNamedFragmentRandomItemTopic 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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// SimpleNamedFragmentRandomItemVideo includes the requested fields of the GraphQL type Video.
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type SimpleNamedFragmentRandomItemVideo 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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VideoFields `json:"-"`
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}
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func (v *SimpleNamedFragmentRandomItemVideo) UnmarshalJSON(b []byte) error {
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if string(b) == "null" {
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return nil
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}
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var firstPass struct {
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*SimpleNamedFragmentRandomItemVideo
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graphql.NoUnmarshalJSON
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}
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firstPass.SimpleNamedFragmentRandomItemVideo = 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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err = json.Unmarshal(
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b, &v.VideoFields)
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if err != nil {
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return err
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}
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return nil
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}
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// SimpleNamedFragmentRandomLeafArticle includes the requested fields of the GraphQL type Article.
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type SimpleNamedFragmentRandomLeafArticle struct {
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Typename string `json:"__typename"`
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}
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// SimpleNamedFragmentRandomLeafLeafContent includes the requested fields of the GraphQL interface LeafContent.
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//
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// SimpleNamedFragmentRandomLeafLeafContent is implemented by the following types:
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// SimpleNamedFragmentRandomLeafArticle
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// SimpleNamedFragmentRandomLeafVideo
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// The GraphQL type's documentation follows.
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//
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// LeafContent represents content items that can't have child-nodes.
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type SimpleNamedFragmentRandomLeafLeafContent interface {
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implementsGraphQLInterfaceSimpleNamedFragmentRandomLeafLeafContent()
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// GetTypename returns the receiver's concrete GraphQL type-name (see interface doc for possible values).
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GetTypename() string
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}
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func (v *SimpleNamedFragmentRandomLeafArticle) implementsGraphQLInterfaceSimpleNamedFragmentRandomLeafLeafContent() {
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}
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// GetTypename is a part of, and documented with, the interface SimpleNamedFragmentRandomLeafLeafContent.
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func (v *SimpleNamedFragmentRandomLeafArticle) GetTypename() string { return v.Typename }
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func (v *SimpleNamedFragmentRandomLeafVideo) implementsGraphQLInterfaceSimpleNamedFragmentRandomLeafLeafContent() {
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}
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// GetTypename is a part of, and documented with, the interface SimpleNamedFragmentRandomLeafLeafContent.
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func (v *SimpleNamedFragmentRandomLeafVideo) GetTypename() string { return v.Typename }
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func __unmarshalSimpleNamedFragmentRandomLeafLeafContent(b []byte, v *SimpleNamedFragmentRandomLeafLeafContent) error {
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if string(b) == "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(b, &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(SimpleNamedFragmentRandomLeafArticle)
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return json.Unmarshal(b, *v)
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case "Video":
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*v = new(SimpleNamedFragmentRandomLeafVideo)
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return json.Unmarshal(b, *v)
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case "":
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return fmt.Errorf(
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"Response was missing LeafContent.__typename")
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default:
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return fmt.Errorf(
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`Unexpected concrete type for SimpleNamedFragmentRandomLeafLeafContent: "%v"`, tn.TypeName)
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}
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}
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// SimpleNamedFragmentRandomLeafVideo includes the requested fields of the GraphQL type Video.
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type SimpleNamedFragmentRandomLeafVideo struct {
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Typename string `json:"__typename"`
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VideoFields `json:"-"`
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}
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func (v *SimpleNamedFragmentRandomLeafVideo) UnmarshalJSON(b []byte) error {
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if string(b) == "null" {
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return nil
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}
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var firstPass struct {
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*SimpleNamedFragmentRandomLeafVideo
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graphql.NoUnmarshalJSON
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}
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firstPass.SimpleNamedFragmentRandomLeafVideo = 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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err = json.Unmarshal(
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b, &v.VideoFields)
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if err != nil {
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return err
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}
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return nil
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}
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// SimpleNamedFragmentResponse is returned by SimpleNamedFragment on success.
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type SimpleNamedFragmentResponse struct {
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RandomItem SimpleNamedFragmentRandomItemContent `json:"-"`
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RandomLeaf SimpleNamedFragmentRandomLeafLeafContent `json:"-"`
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}
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func (v *SimpleNamedFragmentResponse) UnmarshalJSON(b []byte) error {
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if string(b) == "null" {
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return nil
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}
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var firstPass struct {
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*SimpleNamedFragmentResponse
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RandomItem json.RawMessage `json:"randomItem"`
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RandomLeaf json.RawMessage `json:"randomLeaf"`
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graphql.NoUnmarshalJSON
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}
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firstPass.SimpleNamedFragmentResponse = 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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dst := &v.RandomItem
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src := firstPass.RandomItem
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err = __unmarshalSimpleNamedFragmentRandomItemContent(
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src, dst)
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if err != nil {
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return fmt.Errorf(
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"Unable to unmarshal SimpleNamedFragmentResponse.RandomItem: %w", err)
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}
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}
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{
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dst := &v.RandomLeaf
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src := firstPass.RandomLeaf
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err = __unmarshalSimpleNamedFragmentRandomLeafLeafContent(
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src, dst)
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if err != nil {
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return fmt.Errorf(
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"Unable to unmarshal SimpleNamedFragmentResponse.RandomLeaf: %w", err)
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}
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}
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return nil
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}
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// VideoFields includes the GraphQL fields of Video requested by the fragment VideoFields.
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type VideoFields 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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Url string `json:"url"`
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Duration int `json:"duration"`
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Thumbnail VideoFieldsThumbnail `json:"thumbnail"`
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}
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// VideoFieldsThumbnail includes the requested fields of the GraphQL type Thumbnail.
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type VideoFieldsThumbnail struct {
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Id testutil.ID `json:"id"`
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}
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func SimpleNamedFragment(
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client graphql.Client,
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) (*SimpleNamedFragmentResponse, error) {
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var err error
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var retval SimpleNamedFragmentResponse
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err = client.MakeRequest(
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nil,
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"SimpleNamedFragment",
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`
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query SimpleNamedFragment {
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randomItem {
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__typename
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id
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name
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... VideoFields
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}
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randomLeaf {
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__typename
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... VideoFields
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}
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}
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fragment VideoFields on Video {
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id
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name
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url
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duration
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thumbnail {
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id
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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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