Enum ReadonlyReason 

pub enum ReadonlyReason {
    Filesystem,
    Command,
    RemoteAuthority,
    Container,
    GitSurface,
    Output,
    DirectoryListing,
    DirectoryOperation,
    CollectionProjection,
    RecoveryCheckpoint,
    OutsideWorkspace,
}

Why a buffer refuses edits (0056 AR14): the typed owner :explain renders, recorded at the site that actually imposed the policy — never a generic hint. None alongside readonly is reserved for tests that poke the mutation guard directly.

Variants

Filesystem

The filesystem reports the file not writable.

Command

:set ro or :view.

RemoteAuthority

A remote snapshot without write authority (:remote edit grants it).

Container

Container bytes have no local write path (0037 DC1b).

GitSurface

A git memory surface — content derived from history.

Output

Transient named output (help, :!, the undo browser, :explain).

DirectoryListing

A directory listing without an editable filename draft.

DirectoryOperation

A directory operation is applying or reloading.

CollectionProjection

A stale collection whose projection failed.

RecoveryCheckpoint

The recovery checkpoint surface.

OutsideWorkspace

Navigation landed outside the workspace root.

Trait Implementations

impl Clone for ReadonlyReason

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ReadonlyReason

impl Debug for ReadonlyReason

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ReadonlyReason

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ReadonlyReason

impl PartialEq for ReadonlyReason

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for ReadonlyReason

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ReadonlyReason