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arikawa/utils/cmd/genevent/template.tmpl
diamondburned 54cadd2f45 gateway: Refactor for a better concurrent API
This commit refactors the whole package gateway as well as utils/ws
(formerly utils/wsutil) and voice/voicegateway. The new refactor
utilizes a design pattern involving a concurrent loop and an arriving
event channel.

An additional change was made to the way gateway events are typed.
Before, pretty much any type will satisfy a gateway event type, since
the actual type was just interface{}. The new refactor defines a
concrete interface that events can implement:

    type Event interface {
        Op() OpCode
        EventType() EventType
    }

Using this interface, the user can easily add custom gateway events
independently of the library without relying on string maps. This adds a
lot of type safety into the library and makes type-switching on Event
types much more reasonable.

Gateway error callbacks are also almost entirely removed in favor of
custom gateway events. A catch-all can easily be added like this:

    s.AddHandler(func(err error) {
        log.Println("gateway error:, err")
    })
2021-12-14 13:49:34 -08:00

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// Code generated by genevent. DO NOT EDIT.
package {{ .PackageName }}
import "github.com/diamondburned/arikawa/v3/utils/ws"
func init() {
OpUnmarshalers.Add(
{{ range .EventTypes -}}
func() ws.Event { return new({{ .StructName }}) },
{{ end -}}
)
}
{{ range .EventTypes }}
{{ if .IsDispatch }}
// Op implements Event. It always returns 0.
func (*{{ .StructName }}) Op() ws.OpCode { return dispatchOp }
{{ else if (gt .OpCode -1) }}
// Op implements Event. It always returns Op {{ .OpCode }}.
func (*{{ .StructName }}) Op() ws.OpCode { return {{ .OpCode }} }
{{ end }}
// EventType implements Event.
func (*{{ .StructName }}) EventType() ws.EventType { return "{{ .EventName }}" }
{{ end }}