field.gotpl

{{- range $object := .Objects }}{{- range $field := $object.Fields }}

func (ec *executionContext) _{{$object.Name}}_{{$field.Name}}(ctx context.Context, field graphql.CollectedField{{ if not $object.Root }}, obj {{$object.Reference | ref}}{{end}}) (ret {{ if $object.Stream }}func(){{ end }}graphql.Marshaler) {
	{{- $null := "graphql.Null" }}
	{{- if $object.Stream }}
		{{- $null = "nil" }}
	{{- end }}
	defer func () {
		if r := recover(); r != nil {
			ec.Error(ctx, ec.Recover(ctx, r))
			ret = {{ $null }}
		}
	}()
	fc := &graphql.FieldContext{
		Object: {{$object.Name|quote}},
		Field: field,
		Args:  nil,
		IsMethod: {{or $field.IsMethod $field.IsResolver}},
		IsResolver: {{ $field.IsResolver }},
	}

	ctx = graphql.WithFieldContext(ctx, fc)
	{{- if $field.Args }}
		rawArgs := field.ArgumentMap(ec.Variables)
		args, err := ec.{{ $field.ArgsFunc }}(ctx,rawArgs)
		if err != nil {
			ec.Error(ctx, err)
			return {{ $null }}
		}
		fc.Args = args
	{{- end }}
	{{- if  $.Directives.LocationDirectives "FIELD" }}
		resTmp := ec._fieldMiddleware(ctx, {{if $object.Root}}nil{{else}}obj{{end}}, func(rctx context.Context) (interface{}, error) {
			{{ template "field" $field }}
		})
	{{ else }}
		resTmp, err := ec.ResolverMiddleware(ctx, func(rctx context.Context) (interface{}, error) {
			{{ template "field" $field }}
		})
		if err != nil {
			ec.Error(ctx, err)
			return {{ $null }}
		}
	{{- end }}
	if resTmp == nil {
		{{- if $field.TypeReference.GQL.NonNull }}
			if !graphql.HasFieldError(ctx, fc) {
				ec.Errorf(ctx, "must not be null")
			}
		{{- end }}
		return {{ $null }}
	}
	{{- if $object.Stream }}
		return func() graphql.Marshaler {
			res, ok := <-resTmp.(<-chan {{$field.TypeReference.GO | ref}})
			if !ok {
				return nil
			}
			return graphql.WriterFunc(func(w io.Writer) {
				w.Write([]byte{'{'})
				graphql.MarshalString(field.Alias).MarshalGQL(w)
				w.Write([]byte{':'})
				ec.{{ $field.TypeReference.MarshalFunc }}(ctx, field.Selections, res).MarshalGQL(w)
				w.Write([]byte{'}'})
			})
		}
	{{- else }}
		res := resTmp.({{$field.TypeReference.GO | ref}})
		fc.Result = res
		return ec.{{ $field.TypeReference.MarshalFunc }}(ctx, field.Selections, res)
	{{- end }}
}

{{- end }}{{- end}}

{{ define "field" }}
	{{- if .HasDirectives -}}
		directive0 := func(rctx context.Context) (interface{}, error) {
			ctx = rctx  // use context from middleware stack in children
			{{ template "fieldDefinition" . }}
		}
		{{ template "implDirectives" . }}
		tmp, err := directive{{.ImplDirectives|len}}(rctx)
		if err != nil {
			return nil, graphql.ErrorOnPath(ctx, err)
		}
		if tmp == nil {
		    return nil, nil
		}
		if data, ok := tmp.({{if .Stream}}<-chan {{end}}{{ .TypeReference.GO | ref }}) ; ok {
			return data, nil
		}
		return nil, fmt.Errorf(`unexpected type %T from directive, should be {{if .Stream}}<-chan {{end}}{{ .TypeReference.GO }}`, tmp)
	{{- else -}}
		ctx = rctx  // use context from middleware stack in children
		{{ template "fieldDefinition" . }}
	{{- end -}}
{{ end }}

{{ define "fieldDefinition" }}
	{{- if .IsResolver -}}
		return ec.resolvers.{{ .ShortInvocation }}
	{{- else if .IsMap -}}
		switch v := {{.GoReceiverName}}[{{.Name|quote}}].(type) {
		case {{if .Stream}}<-chan {{end}}{{.TypeReference.GO | ref}}:
			return v, nil
		case {{if .Stream}}<-chan {{end}}{{.TypeReference.Elem.GO | ref}}:
			return &v, nil
		case nil:
			return ({{.TypeReference.GO | ref}})(nil), nil
		default:
			return nil, fmt.Errorf("unexpected type %T for field %s", v, {{ .Name | quote}})
		}
	{{- else if .IsMethod -}}
		{{- if .VOkFunc -}}
			v, ok := {{.GoReceiverName}}.{{.GoFieldName}}({{ .CallArgs }})
			if !ok {
				return nil, nil
			}
			return v, nil
		{{- else if .NoErr -}}
			return {{.GoReceiverName}}.{{.GoFieldName}}({{ .CallArgs }}), nil
		{{- else -}}
			return {{.GoReceiverName}}.{{.GoFieldName}}({{ .CallArgs }})
		{{- end -}}
	{{- else if .IsVariable -}}
		return {{.GoReceiverName}}.{{.GoFieldName}}, nil
	{{- end }}
{{- end }}