Struct RenderOutputRef 

pub struct RenderOutputRef<'a> {
    pub buffer_id: BufferId,
    pub spans: &'a [Vec<(usize, usize, StyleSpec)>],
    pub signs: Vec<DiagSign>,
    pub key: (u64, usize, usize),
    pub perf: PerfBreakdown,
}

Borrowed view of a viewport render result.

Identical to RenderOutput except that spans borrows the layer’s internal row cache instead of deep-copying it. Renderer adapters convert the span table into their own style type anyway, so borrowing lets them build exactly one table per recompute instead of two (the cache copy plus the converted copy).

The borrow keeps the SyntaxLayer locked for the lifetime of the value — convert or copy out of it, then drop it. Use RenderOutputRef::into_owned (or SyntaxLayer::render_viewport) when an owned table is required.

Examples

use hjkl_syntax::{PerfBreakdown, RenderOutputRef};
let rows = Vec::new();
let out = RenderOutputRef {
    buffer_id: 0,
    spans: &rows,
    signs: Vec::new(),
    key: (0, 0, 0),
    perf: PerfBreakdown::default(),
};
assert_eq!(out.into_owned().buffer_id, 0);

Fields

buffer_id: BufferId

Routes spans/signs back to the matching buffer slot.

spans: &'a [Vec<(usize, usize, StyleSpec)>]

Per-row span table, borrowed from the layer’s viewport cache.

signs: Vec<DiagSign>

Diagnostic signs for the gutter.

key: (u64, usize, usize)

(dirty_gen, viewport_top, viewport_height) cache key.

perf: PerfBreakdown

Sub-step timing breakdown (zeroed in fully-sync path).

Implementations

impl RenderOutputRef<'_>

pub fn into_owned(self) -> RenderOutput

Deep-copy the borrowed span table into an owned RenderOutput.

Examples

use hjkl_syntax::{PerfBreakdown, RenderOutputRef};
let rows = vec![Vec::new()];
let out = RenderOutputRef {
    buffer_id: 3,
    spans: &rows,
    signs: Vec::new(),
    key: (1, 0, 30),
    perf: PerfBreakdown::default(),
}
.into_owned();
assert_eq!(out.spans.len(), 1);

Trait Implementations

impl<'a> Debug for RenderOutputRef<'a>

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

Formats the value using the given formatter.