Struct EditorSnapshot 

pub struct EditorSnapshot {
    pub version: u32,
    pub mode: SnapshotMode,
    pub cursor: (u32, u32),
    pub lines: Vec<String>,
    pub viewport_top: u32,
}

Coarse editor snapshot suitable for serde round-tripping.

Today’s shape is intentionally minimal — it carries only the bits the runtime crate::Editor knows how to round-trip without the trait extraction (mode, cursor, lines, viewport top, settings). Once Editor<B: Buffer, H: Host> ships under phase 5, this struct grows to cover full SPEC state: registers, marks, jump list, change list, undo tree, full options.

Hosts that persist editor state between sessions should:

• Treat the snapshot as opaque. Don’t manually mutate fields.
• Always check version after deserialization; reject on mismatch rather than attempt migration. The 0.0.x churn drops compatibility freely.

Fields

version: u32

Format version. Bumped on every structural change. Hosts use this to detect mismatched persisted state.

mode: SnapshotMode

Mode at snapshot time (status-line granularity).

cursor: (u32, u32)

Cursor (row, col) in byte indexing.

lines: Vec<String>

Buffer lines. Trailing \n not included.

viewport_top: u32

Viewport top line at snapshot time.

Implementations

impl EditorSnapshot

pub const VERSION: u32 = 1

Current snapshot format version.

Trait Implementations

impl Clone for EditorSnapshot

fn clone(&self) -> EditorSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EditorSnapshot

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EditorSnapshot

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for EditorSnapshot

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for EditorSnapshot

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for EditorSnapshot

impl StructuralPartialEq for EditorSnapshot