Function createSyntaxStyleMemo

packages/tui/src/context/theme.tsx:306–332

(factory: () => SyntaxStyle)

})

export function createSyntaxStyleMemo(factory: () => SyntaxStyle) {
  const renderer = useRenderer()
  const retained = new Set<SyntaxStyle>()
  let current: SyntaxStyle | undefined

  const release = (style: SyntaxStyle) => {
    retained.add(style)
    void renderer
      .idle()
      .catch(() => {})
      .finally(() => {
        if (!retained.delete(style)) return
        style.destroy()
      })
  }

  onCleanup(() => {
    if (current) release(current)
  })

  return createMemo(() => {
    const previous = current
    current = factory()
    if (previous) release(previous)
    return current
  })
}