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https://github.com/openai/codex.git
synced 2026-11-11 01:37:10 +00:00
Charlie Marsh
6a54efb76b
## Why Finalized Markdown can be rendered repeatedly at the same width while measuring and displaying transcript history. ## What changed - Cache the latest rendered lines for finalized agent messages and proposed plans. - Invalidate cached lines when the width, syntax theme, terminal colors, or color level changes. - Keep visualization directives uncached because resolving their local files depends on current filesystem state. ## Testing Add tests for cache reuse, render-state invalidation, raw Markdown rendering, and visualization cache bypass. GitOrigin-RevId: ba08140041a229b8cb9d297de87dc7bb39ebfe5d
50 lines
1.7 KiB
Rust
50 lines
1.7 KiB
Rust
//! Single-width render cache shared by finalized source-backed markdown history cells.
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use crate::terminal_hyperlinks::HyperlinkLine;
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use std::sync::Mutex;
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use std::sync::PoisonError;
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#[derive(Debug, Default)]
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pub(super) struct MarkdownRenderCache {
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pub(super) cached: Mutex<Option<(MarkdownRenderCacheKey, Vec<HyperlinkLine>)>>,
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}
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#[derive(Clone, Copy, Debug, Eq, PartialEq)]
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pub(super) struct MarkdownRenderCacheKey {
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pub(super) width: u16,
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pub(super) syntax_theme_revision: u64,
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pub(super) terminal_fg: Option<(u8, u8, u8)>,
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pub(super) terminal_bg: Option<(u8, u8, u8)>,
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pub(super) color_level: crate::terminal_palette::StdoutColorLevel,
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}
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impl MarkdownRenderCache {
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/// Return lines cached for this width and terminal render state, rendering on a cache miss.
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///
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/// Only the most recent entry is retained, so changing width, syntax theme, or terminal colors
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/// replaces the cached render.
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pub(super) fn render(
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&self,
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width: u16,
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render: impl FnOnce() -> Vec<HyperlinkLine>,
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) -> Vec<HyperlinkLine> {
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let key = MarkdownRenderCacheKey {
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width,
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syntax_theme_revision: crate::render::highlight::syntax_theme_revision(),
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terminal_fg: crate::terminal_palette::default_fg(),
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terminal_bg: crate::terminal_palette::default_bg(),
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color_level: crate::terminal_palette::stdout_color_level(),
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};
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let mut cached = self.cached.lock().unwrap_or_else(PoisonError::into_inner);
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if let Some((cached_key, lines)) = cached.as_ref()
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&& *cached_key == key
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{
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return lines.clone();
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}
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let lines = render();
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*cached = Some((key, lines.clone()));
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lines
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}
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}
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