runtime

type Cell struct {
	// contains filtered or unexported fields
}

type Displayer interface {
	Display() map[string][]byte
}

type Program struct {
	// Cells holds the compiled cells by their index among the notebook's
	// code cells; a cell that defines nothing and shows nothing still has
	// an entry.
	Cells []func(*Cell)

	// Vars maps each notebook variable to a pointer to it.
	Vars map[string]any
}

type Reply struct {
	Cell    int                 `json:"cell,omitempty"`
	Name    string              `json:"name,omitempty"`
	Output  string              `json:"output,omitempty"`  // what the cell printed
	Display []map[string][]byte `json:"display,omitempty"` // what it showed
	Error   string              `json:"error,omitempty"`   // a panic, with its stack
	Took    time.Duration       `json:"took,omitempty"`    // how long the cell ran, in the worker
	Data    []byte              `json:"data,omitempty"`    // an encoded value
	// Volatile reports a value that cannot be encoded (a func, a channel,
	// unexported state): the cell that makes it has to run again instead.
	Volatile bool `json:"volatile,omitempty"`
}

type Request struct {
	Op   string `json:"op"` // "run", "get", "set" or "exit"
	Cell int    `json:"cell,omitempty"`
	Name string `json:"name,omitempty"`
	Data []byte `json:"data,omitempty"`
}