3a5bf46da4
## Summary: If your type implements an interface, we add getter methods for the shared fields, so that those may be accessed via the interface. But it turns out occasionally it's useful to have these getter methods when they don't implement a GraphQL interface, so you can use two genqlient-generated types in the same function if they have the same fields. (This comes up most often when you have a GraphQL union that maybe should really be an interface, or if you don't yet support interfaces implementing other interfaces (indeed our parser doesn't either). But one can imagine other use cases.) We can't predict how you want to do that, so we can't generate the interface, but we can generate the methods, so you can define the interface and do a type assertion from there. Since these methods are pretty simple to generate, we just do it always. (As with #120, if binary size becomes an issue we could later add an option to only generate methods that are truly needed but including them seems like the better default.) This also fixes a subtle and rare bug, which would have become much more common (indeed existing tests caught it). Specifically, if you have a query like ```graphql fragment FragmentOne on T { id } fragment FragmentTwo on T { id } query Q { f { # interface type T ...FragmentOne ...FragmentTwo } } ``` since both `FragmentOne` and `FragmentTwo` request some common field, say `id`, we generate a method `GetId` on each one. But since `FragmentOne` and `FragmentTwo` are both on `T`, we also include their interfaces in the interface we generate for the type of `f`, `QFT`. So `QFT` includes a method `GetId`. But on the implementations, the two methods conflict, and neither gets promoted; this causes various code to fail to compile. With this change, this would have happened much more frequently -- even if only one of the two fragments is on `T`, as long as both request the field. Anyway, we now generate explicit methods on each struct for all of its recursively emebedded fields -- using the logic from #120 to compute them -- so that we don't need to rely on method-promotion. ## Test plan: make tesc Author: benjaminjkraft Reviewers: csilvers, dnerdy, aberkan, jvoll, mahtabsabet, MiguelCastillo, StevenACoffman Required Reviewers: Approved By: csilvers, 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/126
272 lines
8.5 KiB
Go
272 lines
8.5 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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// SimpleInlineFragmentRandomItemArticle includes the requested fields of the GraphQL type Article.
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type SimpleInlineFragmentRandomItemArticle 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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Text string `json:"text"`
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}
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// GetTypename returns SimpleInlineFragmentRandomItemArticle.Typename, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemArticle) GetTypename() string { return v.Typename }
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// GetId returns SimpleInlineFragmentRandomItemArticle.Id, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemArticle) GetId() testutil.ID { return v.Id }
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// GetName returns SimpleInlineFragmentRandomItemArticle.Name, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemArticle) GetName() string { return v.Name }
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// GetText returns SimpleInlineFragmentRandomItemArticle.Text, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemArticle) GetText() string { return v.Text }
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// SimpleInlineFragmentRandomItemContent includes the requested fields of the GraphQL interface Content.
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//
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// SimpleInlineFragmentRandomItemContent is implemented by the following types:
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// SimpleInlineFragmentRandomItemArticle
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// SimpleInlineFragmentRandomItemVideo
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// SimpleInlineFragmentRandomItemTopic
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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 SimpleInlineFragmentRandomItemContent interface {
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implementsGraphQLInterfaceSimpleInlineFragmentRandomItemContent()
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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 *SimpleInlineFragmentRandomItemArticle) implementsGraphQLInterfaceSimpleInlineFragmentRandomItemContent() {
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}
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func (v *SimpleInlineFragmentRandomItemVideo) implementsGraphQLInterfaceSimpleInlineFragmentRandomItemContent() {
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}
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func (v *SimpleInlineFragmentRandomItemTopic) implementsGraphQLInterfaceSimpleInlineFragmentRandomItemContent() {
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}
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func __unmarshalSimpleInlineFragmentRandomItemContent(b []byte, v *SimpleInlineFragmentRandomItemContent) 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(SimpleInlineFragmentRandomItemArticle)
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return json.Unmarshal(b, *v)
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case "Video":
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*v = new(SimpleInlineFragmentRandomItemVideo)
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return json.Unmarshal(b, *v)
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case "Topic":
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*v = new(SimpleInlineFragmentRandomItemTopic)
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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 SimpleInlineFragmentRandomItemContent: "%v"`, tn.TypeName)
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}
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}
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func __marshalSimpleInlineFragmentRandomItemContent(v *SimpleInlineFragmentRandomItemContent) ([]byte, error) {
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var typename string
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switch v := (*v).(type) {
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case *SimpleInlineFragmentRandomItemArticle:
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typename = "Article"
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result := struct {
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TypeName string `json:"__typename"`
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*SimpleInlineFragmentRandomItemArticle
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}{typename, v}
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return json.Marshal(result)
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case *SimpleInlineFragmentRandomItemVideo:
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typename = "Video"
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result := struct {
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TypeName string `json:"__typename"`
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*SimpleInlineFragmentRandomItemVideo
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}{typename, v}
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return json.Marshal(result)
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case *SimpleInlineFragmentRandomItemTopic:
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typename = "Topic"
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result := struct {
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TypeName string `json:"__typename"`
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*SimpleInlineFragmentRandomItemTopic
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}{typename, v}
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return json.Marshal(result)
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case nil:
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return []byte("null"), nil
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default:
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return nil, fmt.Errorf(
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`Unexpected concrete type for SimpleInlineFragmentRandomItemContent: "%T"`, v)
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}
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}
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// SimpleInlineFragmentRandomItemTopic includes the requested fields of the GraphQL type Topic.
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type SimpleInlineFragmentRandomItemTopic 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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// GetTypename returns SimpleInlineFragmentRandomItemTopic.Typename, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemTopic) GetTypename() string { return v.Typename }
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// GetId returns SimpleInlineFragmentRandomItemTopic.Id, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemTopic) GetId() testutil.ID { return v.Id }
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// GetName returns SimpleInlineFragmentRandomItemTopic.Name, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemTopic) GetName() string { return v.Name }
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// SimpleInlineFragmentRandomItemVideo includes the requested fields of the GraphQL type Video.
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type SimpleInlineFragmentRandomItemVideo 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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Duration int `json:"duration"`
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}
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// GetTypename returns SimpleInlineFragmentRandomItemVideo.Typename, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemVideo) GetTypename() string { return v.Typename }
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// GetId returns SimpleInlineFragmentRandomItemVideo.Id, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemVideo) GetId() testutil.ID { return v.Id }
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// GetName returns SimpleInlineFragmentRandomItemVideo.Name, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemVideo) GetName() string { return v.Name }
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// GetDuration returns SimpleInlineFragmentRandomItemVideo.Duration, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentRandomItemVideo) GetDuration() int { return v.Duration }
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// SimpleInlineFragmentResponse is returned by SimpleInlineFragment on success.
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type SimpleInlineFragmentResponse struct {
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RandomItem SimpleInlineFragmentRandomItemContent `json:"-"`
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}
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// GetRandomItem returns SimpleInlineFragmentResponse.RandomItem, and is useful for accessing the field via an interface.
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func (v *SimpleInlineFragmentResponse) GetRandomItem() SimpleInlineFragmentRandomItemContent {
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return v.RandomItem
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}
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func (v *SimpleInlineFragmentResponse) 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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*SimpleInlineFragmentResponse
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RandomItem json.RawMessage `json:"randomItem"`
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graphql.NoUnmarshalJSON
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}
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firstPass.SimpleInlineFragmentResponse = 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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if len(src) != 0 && string(src) != "null" {
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err = __unmarshalSimpleInlineFragmentRandomItemContent(
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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 SimpleInlineFragmentResponse.RandomItem: %w", 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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type __premarshalSimpleInlineFragmentResponse struct {
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RandomItem json.RawMessage `json:"randomItem"`
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}
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func (v *SimpleInlineFragmentResponse) MarshalJSON() ([]byte, error) {
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premarshaled, err := v.__premarshalJSON()
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if err != nil {
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return nil, err
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}
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return json.Marshal(premarshaled)
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}
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func (v *SimpleInlineFragmentResponse) __premarshalJSON() (*__premarshalSimpleInlineFragmentResponse, error) {
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var retval __premarshalSimpleInlineFragmentResponse
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{
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dst := &retval.RandomItem
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src := v.RandomItem
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var err error
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*dst, err = __marshalSimpleInlineFragmentRandomItemContent(
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&src)
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if err != nil {
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return nil, fmt.Errorf(
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"Unable to marshal SimpleInlineFragmentResponse.RandomItem: %w", err)
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}
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}
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return &retval, nil
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}
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func SimpleInlineFragment(
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client graphql.Client,
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) (*SimpleInlineFragmentResponse, error) {
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var err error
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var retval SimpleInlineFragmentResponse
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err = client.MakeRequest(
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nil,
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"SimpleInlineFragment",
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`
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query SimpleInlineFragment {
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randomItem {
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__typename
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id
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name
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... on Article {
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text
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}
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... on Video {
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duration
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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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