package dsl
import (
"time"
"github.com/emicklei/melrose/core"
"github.com/emicklei/melrose/notify"
)
func Validate(source string) error {
ctx := core.PlayContext{
VariableStorage: NewVariableStore(),
LoopControl: core.NoLooper,
AudioDevice: noAudioDevice{},
}
e := NewEvaluator(ctx)
_, err := e.EvaluateProgram(source)
return err
}
var _ core.AudioDevice = (*noAudioDevice)(nil)
type noAudioDevice struct{}
func (t noAudioDevice) Command(args []string) notify.Message { return nil }
func (t noAudioDevice) DefaultDeviceIDs() (int, int) { return 1, 1 }
func (t noAudioDevice) Play(condition core.Condition, seq core.Sequenceable, bpm float64, beginAt time.Time) (endingAt time.Time) {
return time.Now()
}
func (t noAudioDevice) HandleSetting(name string, values []any) error { return nil }
func (t noAudioDevice) HasInputCapability() bool { return true }
func (t noAudioDevice) Listen(deviceID int, who core.NoteListener, startOrStop bool) {}
func (t noAudioDevice) OnKey(ctx core.Context, deviceID int, channel int, note core.Note, fun core.HasValue) error {
return nil
}
func (t noAudioDevice) Schedule(event core.TimelineEvent, beginAt time.Time) {}
func (t noAudioDevice) Reset() {}
func (t noAudioDevice) Report() {}
func (t noAudioDevice) Close() error { return nil }
func (t noAudioDevice) ListDevices() (list []core.DeviceDescriptor) { return }
