Function GenStructFromAllOf

pkg/codegen/merge_schemas_v1.go:67–112

GenStructFromAllOf generates an object that is the union of the objects in the input array. In the case of Ref objects, we use an embedded struct, otherwise, we inline the fields.

(allOf []*openapi3.SchemaRef, path []string)

// input array. In the case of Ref objects, we use an embedded struct, otherwise,
// we inline the fields.
func GenStructFromAllOf(allOf []*openapi3.SchemaRef, path []string) (string, error) {
	// Start out with struct {
	objectParts := []string{"struct {"}
	for _, schemaOrRef := range allOf {
		ref := schemaOrRef.Ref
		if IsGoTypeReference(ref) {
			// We have a referenced type, we will generate an inlined struct
			// member.
			// struct {
			//   InlinedMember
			//   ...
			// }
			goType, err := RefPathToGoType(ref)
			if err != nil {
				return "", err
			}
			objectParts = append(objectParts,
				fmt.Sprintf("   // Embedded struct due to allOf(%s)", ref))
			objectParts = append(objectParts,
				fmt.Sprintf("   %s `yaml:\",inline\"`", goType))
		} else {
			// Inline all the fields from the schema into the output struct,
			// just like in the simple case of generating an object.
			goSchema, err := GenerateGoSchema(schemaOrRef, path)
			if err != nil {
				return "", err
			}
			objectParts = append(objectParts, "   // Embedded fields due to inline allOf schema")
			objectParts = append(objectParts, GenFieldsFromProperties(goSchema.Properties)...)

			if goSchema.HasAdditionalProperties {
				addPropsType := goSchema.AdditionalPropertiesType.GoType
				if goSchema.AdditionalPropertiesType.RefType != "" {
					addPropsType = goSchema.AdditionalPropertiesType.RefType
				}

				additionalPropertiesPart := fmt.Sprintf("AdditionalProperties map[string]%s `json:\"-\"`", addPropsType)
				if !slices.Contains(objectParts, additionalPropertiesPart) {
					objectParts = append(objectParts, additionalPropertiesPart)
				}
			}
		}
	}
	objectParts = append(objectParts, "}")
	return strings.Join(objectParts, "\n"), nil
}