ebox-playground/scripts/ebox-playground-flex-resize-evaluator.el
Kinneyzhang 6cd5a67a35 feat: add sizing and interactive text reference examples
Load same-basename Elisp companions through the generic preview runner. Demonstrate size semantics and native help, pointer, hover and keymap behavior with isolated example state.

Update Flex and Grid examples and extend reusable comparison and interaction evaluators with publication, allocation and fresh-render parity checks.

Validation: make check passed, including all 72 Playground tests.
2026-09-09 22:25:28 +08:00

956 lines
50 KiB
EmacsLisp

;;; ebox-playground-flex-resize-evaluator.el --- Flex resize evaluator -*- lexical-binding: t; -*-
;; SPDX-License-Identifier: GPL-3.0-or-later
;;; Commentary:
;; This evaluator exercises the public playground path used by an interactive
;; `.ebox' preview: source buffer on the left, rendered buffer on the right,
;; and a sustained window-resize burst that reaches
;; `window-size-change-functions'.
;;; Code:
(require 'cl-lib)
(require 'ebox-playground)
(require 'ebox-native-reflow)
(defcustom ebox-playground-flex-resize-evaluator-fixture
(or (getenv "EBOX_PLAYGROUND_FLEX_FIXTURE")
(expand-file-name "examples/flex-reference.ebox"
ebox-playground-directory))
"Read-only Flex fixture used by the performance evaluator."
:type 'file
:group 'ebox-playground)
(defconst ebox-playground-flex-resize-evaluator-warmup-count 5)
(defconst ebox-playground-flex-resize-evaluator-sample-count 30)
(defcustom ebox-playground-flex-resize-evaluator-max-seconds 2.0
"Maximum allowed end-to-end time for the measured resize burst."
:type 'number
:group 'ebox-playground)
(defcustom ebox-playground-flex-resize-evaluator-max-update-seconds 0.05
"Maximum allowed time for one published viewport update."
:type 'number
:group 'ebox-playground)
(defcustom ebox-playground-flex-resize-evaluator-max-gap-seconds 0.08
"Maximum allowed completion gap during the resize burst."
:type 'number
:group 'ebox-playground)
(defvar ebox-playground-flex-resize-evaluator--output-lines nil
"Report lines collected during one evaluator run.")
(defun ebox-playground-flex-resize-evaluator--percentile
(samples percentile)
"Return nearest-rank PERCENTILE from numeric SAMPLES."
(unless samples
(error "Flex evaluator cannot summarize empty samples"))
(let* ((ordered (sort (copy-sequence samples) #'<))
(rank (max 1 (ceiling (* percentile (length ordered))))))
(nth (1- rank) ordered)))
(defconst ebox-playground-flex-resize-evaluator--runtime-properties
(delete-dups
(append (mapcar #'cdr ebox-region-types)
'(ebox-content-idx ebox-content-owners ebox-scroll-window
ebox--paint-origin)))
"Ebox identity properties omitted from fresh-render comparison.")
(defun ebox-playground-flex-resize-evaluator--line-widths (buffer)
"Return pixel widths for every rendered line in BUFFER."
(with-current-buffer buffer
(mapcar #'ebox-string-pixel-width
(ebox-string-lines (buffer-string)))))
(defun ebox-playground-flex-resize-evaluator--merge-face (higher lower)
"Merge HIGHER priority face attributes into LOWER without losing relative sizes."
(let ((result (copy-sequence lower)))
(while higher
(let ((attribute (pop higher))
(value (pop higher)))
(unless (eq value 'unspecified)
(setq result
(plist-put result attribute
(if (plist-member result attribute)
(merge-face-attribute
attribute value (plist-get result attribute))
value))))))
result))
(defun ebox-playground-flex-resize-evaluator--effective-face (face &optional seen)
"Return sorted effective attributes of FACE, guarding inheritance with SEEN.
Face lists put higher priority entries first. Relative heights are merged using
Emacs's own attribute operation; named faces use the current display frame."
(let
((attributes
(cond
((null face) nil)
((facep face)
(when (member face seen)
(error "Cyclic face inheritance: %S" face))
(ebox-playground-flex-resize-evaluator--effective-face
(cl-mapcan (lambda (entry) (list (car entry) (cdr entry)))
(face-all-attributes face (selected-frame)))
(cons face seen)))
((and (proper-list-p face) (keywordp (car face)))
(unless (zerop (% (length face) 2))
(error "Invalid anonymous face: %S" face))
(let ((own (copy-sequence face))
(inherited (plist-get face :inherit)))
(cl-remf own :inherit)
(ebox-playground-flex-resize-evaluator--merge-face
own
(unless (memq inherited '(nil unspecified))
(ebox-playground-flex-resize-evaluator--effective-face
inherited seen)))))
((proper-list-p face)
(let (result)
(dolist (entry (reverse face))
(setq result
(ebox-playground-flex-resize-evaluator--merge-face
(ebox-playground-flex-resize-evaluator--effective-face
entry seen)
result)))
result))
(t (error "Unsupported face value in render comparison: %S" face)))))
(cl-loop for key in (sort (cl-loop for (key _value) on attributes by #'cddr
collect key)
(lambda (a b)
(string-lessp (symbol-name a) (symbol-name b))))
append (list key (plist-get attributes key)))))
(defun ebox-playground-flex-resize-evaluator--visual-text (text)
"Return TEXT with runtime ids removed and face cascades normalized.
Keep characters, display dimensions, effective face attributes, and interactive
properties. Equivalent anonymous face stacks compare equal; changes to visible
color, relative font size, measurement, or interaction still compare unequal."
(let ((copy (copy-sequence text))
(hover-owners (make-hash-table :test #'eql)))
(when (> (length copy) 0)
(remove-list-of-text-properties
0 (length copy)
ebox-playground-flex-resize-evaluator--runtime-properties
copy)
;; Fresh renders allocate different owner ids. Preserve the owner
;; partition, while comparing all of the retained hover paint facts.
(let ((start 0) end)
(while (< start (length copy))
(setq end (next-single-property-change
start 'ebox--hover-style copy (length copy)))
(when-let* ((declaration (get-text-property start 'ebox--hover-style copy))
(owner (plist-get declaration :owner)))
(put-text-property
start end 'ebox--hover-style
(plist-put
(copy-sequence declaration) :owner
(or (gethash owner hover-owners)
(puthash owner (1+ (hash-table-count hover-owners)) hover-owners)))
copy))
(setq start end)))
(dolist (property '(face font-lock-face mouse-face))
(let ((start 0) end)
(while (< start (length copy))
(setq end (next-single-property-change
start property copy (length copy)))
(when-let* ((face (get-text-property start property copy)))
(put-text-property
start end property
(ebox-playground-flex-resize-evaluator--effective-face face)
copy))
(setq start end)))))
copy))
(defun ebox-playground-flex-resize-evaluator--example-text (file width full)
"Render FILE at WIDTH, using an unclipped document copy when FULL is non-nil."
(let ((ebox-viewport-width width)
(ebox-viewport-height 36))
(if full
(let ((form (ebox-playground--evaluate-form
(ebox-playground--read-file file) file)))
;; These changes affect only the comparison copy, never the author file.
(cl-remf (cdr form) :height)
(cl-remf (cdr form) :overflow)
(setcdr form (append '(:height auto :overflow visible) (cdr form)))
(ebox-render (ebox-build form)))
(ebox-render (ebox-playground-view file width)))))
(defun ebox-playground-compare-example-directories
(baseline-directory current-directory &optional widths files)
"Compare FILES in BASELINE-DIRECTORY and CURRENT-DIRECTORY at WIDTHS.
Default FILES are the Flex and Grid references; default WIDTHS are 720 and 1000.
Compare both the authored 36-line viewport and the complete document so changes
below the fold cannot pass unnoticed. Print bounded results and signal an error
on changed text, effective face, display, interaction, or measured line width.
No files, windows, buffers, or persistent render state are modified."
(let (results failures)
(dolist (file (or files '("flex-reference.ebox" "grid-reference.ebox")))
(dolist (width (or widths '(720 1000)))
(unless (and (numberp width) (> width 0))
(error "Comparison viewport must be a positive number: %S" width))
(dolist (full '(nil t))
(let* ((before (ebox-playground-flex-resize-evaluator--example-text
(expand-file-name file baseline-directory) width full))
(after (ebox-playground-flex-resize-evaluator--example-text
(expand-file-name file current-directory) width full))
(before-widths (mapcar #'ebox-string-pixel-width
(ebox-string-lines before)))
(after-widths (mapcar #'ebox-string-pixel-width
(ebox-string-lines after)))
(left (ebox-playground-flex-resize-evaluator--visual-text before))
(right (ebox-playground-flex-resize-evaluator--visual-text after))
(same-widths (and (= (length before-widths) (length after-widths))
(cl-every #'= before-widths after-widths)))
(same-text (equal-including-properties left right))
(same (and same-widths same-text))
(result (list :file file :width width
:mode (if full 'document 'viewport)
:equal same :line-widths-equal same-widths
:before-length (length before)
:after-length (length after))))
(princ (format "%s %s width=%s mode=%s characters=%s/%s line-widths=%s\n"
(if same "PASS" "FAIL") file width
(if full 'document 'viewport)
(length before) (length after) same-widths))
(unless same
(let* ((position
(cl-loop for index below (min (length left) (length right))
unless (equal-including-properties
(substring left index (1+ index))
(substring right index (1+ index)))
return index))
(print-level 4) (print-length 12))
(when position
(princ (format " first difference at character %s: %S -> %S\n"
position
(list (aref left position)
(text-properties-at position left))
(list (aref right position)
(text-properties-at position right))))))
(push result failures))
(push result results)))))
(when failures
(error "Example render comparison failed in %d cases" (length failures)))
(nreverse results)))
(defun ebox-playground-flex-resize-evaluator--check (name condition detail)
"Record a named check and return whether CONDITION passed."
(push (format "%s %s -- %s"
(if condition "PASS" "FAIL") name detail)
ebox-playground-flex-resize-evaluator--output-lines)
condition)
(defun ebox-playground-scroll-evaluator--measure (region-id steps)
"Measure STEPS alternating cached one-line scrolls of REGION-ID."
(let ((root-renders 0) (node-styles 0) (style-computations 0)
samples installed)
(unwind-protect
(progn
(dolist (entry
(list
(cons 'ebox-surface--render-candidate
(lambda (&rest _) (cl-incf root-renders)))
(cons 'ebox-surface--apply-node-style
(lambda (&rest _) (cl-incf node-styles)))
(cons 'ebox-surface--compute-node-style
(lambda (&rest _) (cl-incf style-computations)))))
(advice-add (car entry) :before (cdr entry))
(push entry installed))
(dotimes (index steps)
(let* ((delta (if (zerop (% index 2)) 1 -1))
(start (float-time))
(consumed (ebox--scroll-region-by region-id delta 1)))
(push (* 1000.0 (- (float-time) start)) samples)
(unless (equal consumed delta)
(error "Scroll evaluator moved %S lines, expected %S"
consumed delta))))
(list :mean-ms (/ (apply #'+ samples) (float steps))
:p95-ms (ebox-playground-flex-resize-evaluator--percentile
samples 0.95)
:max-ms (apply #'max samples)
:root-renders root-renders :node-styles node-styles
:style-computations style-computations))
(dolist (entry installed)
(advice-remove (car entry) (cdr entry))))))
(defun ebox-playground-scroll-evaluator--fresh-parity (buffer file)
"Compare BUFFER with an independent FILE render at its root scroll offset."
(let* ((state (ebox--buffer-render-state buffer))
(ebox-viewport-width (plist-get state :viewport-width))
(ebox-viewport-height (plist-get state :viewport-height))
(region-id (plist-get (plist-get state :root-node) :region-id))
(offset (plist-get (gethash region-id (plist-get state :scroll-state-table))
:scroll-offset))
offset-set
(set-offset
(lambda (root)
(unless offset-set
(setq offset-set t)
(ebox-put root :scroll-offset (or offset 0))
(ebox-put root :ebox-scroll-offset-controlled-p t))))
expected)
;; Scroll offset is runtime state, not an authorable DSL style property.
;; Set it on the independent candidate immediately before its first render.
(unwind-protect
(progn
(advice-add 'ebox--render-layout :before set-offset)
(setq expected (ebox-render (ebox-playground-view
file ebox-viewport-width)))
(unless offset-set
(error "Fresh scroll oracle did not reach the root layout")))
(advice-remove 'ebox--render-layout set-offset))
(with-current-buffer buffer
(let* ((actual (ebox-playground-scroll-evaluator--visual-text
(buffer-string)))
(fresh (ebox-playground-scroll-evaluator--visual-text expected))
(same (equal-including-properties actual fresh)))
(unless same
(let ((position
(cl-loop for index below (min (length actual) (length fresh))
unless (equal-including-properties
(substring actual index (1+ index))
(substring fresh index (1+ index)))
return index))
(print-level 4) (print-length 12))
(princ (format " render lengths=%s/%s first-difference=%S %S -> %S\n"
(length actual) (length fresh) position
(and position (substring actual position
(1+ position)))
(and position (substring fresh position
(1+ position)))))))
same))))
(defun ebox-playground-scroll-evaluator--visual-text (text)
"Normalize visible TEXT, ignoring identity and inert zero-pixel spacers.
Fresh layout may retain empty padding spaces that materialized scroll content
omits. Drop one only beside a visible character with identical faces, so line
font metrics are preserved. Retain height, ascent and alignment carriers."
(let ((text (ebox-playground-flex-resize-evaluator--visual-text text))
(start 0) parts)
(dotimes (index (length text))
(when (and (= (aref text index) ?\s)
(equal (get-text-property index 'display text)
'(space :width (0)))
(cl-some
(lambda (neighbor)
(and (<= 0 neighbor) (< neighbor (length text))
(/= (aref text neighbor) ?\n)
(let ((display (get-text-property neighbor 'display text)))
(or (null display)
(pcase display
(`(space :width (,width))
(and (numberp width) (> width 0))))))
(cl-every
(lambda (property)
(equal (get-text-property index property text)
(get-text-property neighbor property text)))
'(face font-lock-face))))
(list (1- index) (1+ index))))
(push (substring text start index) parts)
(setq start (1+ index))))
(push (substring text start) parts)
(apply #'concat (nreverse parts))))
(defun ebox-playground-interaction-evaluator-click (buffer label &optional offset)
"Simulate a native mouse-1 at visible LABEL in BUFFER, plus character OFFSET.
This GUI diagnostic resolves the actual text-property keymap with an Emacs
mouse event and invokes its interactive command. It does not call a business
action directly, move point, select a window or generate an OS mouse event.
Return the clicked position; the caller must verify the application's result."
(setq buffer (get-buffer buffer) offset (or offset 0))
(unless (and (buffer-live-p buffer) (stringp label) (> (length label) 0)
(integerp offset) (<= 0 offset) (< offset (length label)))
(error "Click diagnostic needs a live buffer, label and in-label offset"))
(let* ((window (or (get-buffer-window buffer t)
(error "Click diagnostic target is not visible")))
(position
(with-current-buffer buffer
(save-excursion
(goto-char (point-min))
(unless (search-forward label nil t)
(error "Click diagnostic label is missing: %s" label))
(+ (- (point) (length label)) offset))))
(posn (or (posn-at-point position window)
(error "Click diagnostic label is outside the visible window")))
(event (list 'mouse-1 posn))
(command (key-binding (vector event)))
(native (with-current-buffer buffer
(get-text-property position 'keymap))))
(unless (and (keymapp native) (commandp command)
(eq command (lookup-key native [mouse-1])))
(error "Click diagnostic label has no native mouse-1 command"))
(let ((last-input-event event)) (call-interactively command))
position))
(defun ebox-playground-interaction-evaluator-run
(file label &optional key steps width height)
"Measure repeated native KEY activation at LABEL in FILE.
KEY defaults to RET, STEPS to 30, WIDTH to 720 pixels and HEIGHT to 200 lines.
Place point at LABEL once, then perform normal key lookup for every command;
fail if an update loses that binding. Return command timing in milliseconds,
GC counts and time, allocated cons cells, publication count and work counts,
and total characters scanned for fragment extraction (including local slices),
final plain text and fresh-render parity.
Rendering a committed snapshot independently must reproduce the mounted text.
This measures synchronous commands and publication, including GC, without
redisplay, OS key repeat or idle prewarming. It uses current font metrics and
a temporary preview, preserving existing buffers, windows and runtime state.
Cleanup runs on success, error and quit; stop between samples after 30 seconds."
(setq key (or key "RET") steps (or steps 30)
width (or width 720) height (or height 200))
(unless (and (stringp file) (stringp label) (> (length label) 0)
(or (stringp key) (vectorp key)))
(error "Interaction evaluator needs a file, nonempty label and native key"))
(dolist (value (list steps width height))
(unless (and (integerp value) (> value 0))
(error "Interaction evaluator dimensions and steps must be positive integers")))
(let ((keys (if (stringp key) (kbd key) key))
(buffer (generate-new-buffer " *ebox-interaction-evaluator*"))
(ebox-viewport-width width) (ebox-viewport-height height)
(ebox-runtime-idle-prewarm nil)
(ebox-runtime-idle-reflow-cache-prewarm nil)
(ebox-scroll-lazy-idle-prefetch-lines 0)
(gc-cons-threshold gc-cons-threshold)
(gc-cons-percentage gc-cons-percentage)
(ebox--deferred-render-gc-state nil)
(ebox--deferred-render-gc-timer nil)
(ebox--deferred-render-gc-depth 0)
(ebox--deferred-render-gc-generation 0)
(work (list :layout-calls 0 :surface-plans 0 :fragment-scans 0
:fragment-characters 0
:node-registrations 0))
samples installed)
(unwind-protect
(progn
(when (zerop (length keys))
(error "Interaction evaluator key must not be empty"))
(ebox-playground-open-file file (buffer-name buffer))
(with-current-buffer buffer
(goto-char (point-min))
(unless (search-forward label nil t)
(error "Interaction label is not visible: %s" label))
(backward-char (length label))
(let* ((command (key-binding keys))
(native (get-text-property (point) 'keymap))
(revision (plist-get (ebox-surface-buffer-snapshot buffer)
:revision))
(gc-count gcs-done) (gc-time gc-elapsed)
(cons-count (car (memory-use-counts)))
(deadline (+ (float-time) 30)))
(unless (and (keymapp native) (commandp command)
(eq command (lookup-key native keys)))
(error "Interaction label has no native command for %s"
(key-description keys)))
(dolist (entry '((ebox--render-layout . :layout-calls)
(ebox-surface--surface-plan . :surface-plans)
(ebox-surface--ensure-node-tree . :node-registrations)))
(let* ((key (cdr entry))
(advice (lambda (&rest _)
(plist-put work key (1+ (plist-get work key))))))
(advice-add (car entry) :before advice)
(push (cons (car entry) advice) installed)))
(let ((advice
(lambda (text)
(cl-incf (plist-get work :fragment-scans))
(cl-incf (plist-get work :fragment-characters)
(length text)))))
(advice-add 'ebox-surface--rendered-fragments :before advice)
(push (cons 'ebox-surface--rendered-fragments advice) installed))
(dotimes (_ steps)
(when (> (float-time) deadline)
(error "Interaction evaluator exceeded 30 seconds"))
(unless (eq (key-binding keys) command)
(error "Repeated %s lost its node binding at point %d"
(key-description keys) (point)))
(let ((started (float-time))
(last-input-event (aref (vconcat keys) (1- (length keys)))))
(call-interactively command)
(push (* 1000 (- (float-time) started)) samples)))
(dolist (entry installed) (advice-remove (car entry) (cdr entry)))
(setq installed nil)
(let* ((cons-count (- (car (memory-use-counts)) cons-count))
(gc-count (- gcs-done gc-count))
(gc-ms (* 1000 (- gc-elapsed gc-time)))
(snapshot (ebox-surface-buffer-snapshot buffer))
(fresh (ebox-render (plist-get snapshot :input)))
(actual (buffer-string))
(parity (equal-including-properties
(ebox-playground-scroll-evaluator--visual-text actual)
(ebox-playground-scroll-evaluator--visual-text fresh))))
(unless parity
(error "Repeated interaction differs from committed snapshot render"))
(append
(list :file (expand-file-name file) :label label
:key (key-description keys) :steps steps
:mean-ms (/ (apply #'+ samples) (float steps))
:p95-ms (ebox-playground-flex-resize-evaluator--percentile
samples 0.95)
:max-ms (apply #'max samples)
:gc-count gc-count :gc-ms gc-ms
:cons-cells cons-count
:publications (- (plist-get snapshot :revision) (or revision 0))
:fresh-parity parity :text (substring-no-properties actual))
work)))))
(dolist (entry installed) (advice-remove (car entry) (cdr entry)))
(when (buffer-live-p buffer) (ebox-playground-close (buffer-name buffer)))
(when (timerp ebox--deferred-render-gc-timer)
(cancel-timer ebox--deferred-render-gc-timer)))))
(defun ebox-playground-scroll-evaluator-run
(files &optional width steps height)
"Profile cached root scrolling for FILES at WIDTH with STEPS and HEIGHT.
FILES is one `.ebox' path or a list of paths. WIDTH defaults to 720 pixels,
STEPS to 20 alternating one-line motions, and HEIGHT to 36 viewport lines.
Each file must have a scrollable root. Fully materialize its content outside
the samples, then measure cached top and midpoint motion. Return bounded
plists with mean, p95 and maximum milliseconds, full root render counts, node
style visits, style computations, and fresh-render parity for each position.
Signal an error on missing scroll capacity, incomplete motion or render drift.
Use the current Emacs frame's font metrics without displaying temporary
buffers or changing windows. This measures retained TP publication; native
window scrolling, idle prewarming and redisplay are excluded. Existing live
buffers, timers and runtime tables are preserved. Temporary mounts and advice
are cleaned on success, error or quit; no global runtime reset is performed."
(setq files (if (stringp files) (list files) files)
width (or width 720) steps (or steps 20) height (or height 36))
(unless (and files (proper-list-p files) (cl-every #'stringp files))
(error "Scroll evaluator needs a file path or nonempty list of paths"))
(dolist (value (list width steps height))
(unless (and (integerp value) (> value 0))
(error "Scroll evaluator dimensions and steps must be positive integers")))
(let ((ebox-viewport-width width)
(ebox-viewport-height height)
(ebox-native-buffer-scroll nil)
(ebox-runtime-idle-prewarm nil)
(ebox-runtime-idle-reflow-cache-prewarm nil)
(ebox-scroll-lazy-idle-prefetch-lines 0)
;; Isolate the GUI deferred-GC lease, including any timer it creates.
(gc-cons-threshold gc-cons-threshold)
(gc-cons-percentage gc-cons-percentage)
(ebox--deferred-render-gc-state nil)
(ebox--deferred-render-gc-timer nil)
(ebox--deferred-render-gc-depth 0)
(ebox--deferred-render-gc-generation 0)
results)
(unwind-protect
(dolist (file files)
(let ((buffer (generate-new-buffer " *ebox-scroll-evaluator*")))
(unwind-protect
(progn
(ebox-playground-open-file file (buffer-name buffer))
(with-current-buffer buffer
(let* ((runtime (ebox--buffer-render-state buffer))
(region-id (plist-get (plist-get runtime :root-node)
:region-id))
(table (plist-get runtime :scroll-state-table))
(state (and region-id (gethash region-id table)))
max-offset)
(unless state
(error "Scroll evaluator requires a scrollable root: %s"
file))
(setq state (ebox--scroll-state-materialize-lines
region-id state))
(puthash region-id state table)
(setq max-offset
(max 0 (- (length (plist-get state :content-lines))
(plist-get state :content-height))))
(unless (> max-offset 0)
(error "Scroll evaluator root has no scroll capacity: %s"
file))
;; Publish warmed content before measuring cached motion.
(ebox--scroll-region-by region-id 1 1)
(ebox--scroll-region-by region-id -1 1)
(dolist (position '(top middle))
(ebox--surface-scroll-to-offset
buffer region-id
(if (eq position 'top) 0 (/ max-offset 2)))
(let* ((measurement
(ebox-playground-scroll-evaluator--measure
region-id steps))
(parity
(ebox-playground-scroll-evaluator--fresh-parity
buffer file))
(result
(append
(list :file (expand-file-name file)
:width width :height height :steps steps
:position position :max-offset max-offset
:fresh-render-parity parity)
measurement)))
(princ
(format
"%s scroll %s %s mean=%.3fms p95=%.3fms max=%.3fms roots=%d node-styles=%d style-computations=%d parity=%S\n"
(if parity "PASS" "FAIL")
(file-name-nondirectory file) position
(plist-get measurement :mean-ms)
(plist-get measurement :p95-ms)
(plist-get measurement :max-ms)
(plist-get measurement :root-renders)
(plist-get measurement :node-styles)
(plist-get measurement :style-computations) parity))
(push result results)
(unless parity
(error "Scroll evaluator fresh-render mismatch: %s %s"
file position)))))))
(when (buffer-live-p buffer)
(kill-buffer buffer)))))
(when (timerp ebox--deferred-render-gc-timer)
(cancel-timer ebox--deferred-render-gc-timer)))
(nreverse results)))
(defun ebox-playground-flex-resize-evaluator--settle-preview
(preview preview-window)
"Publish PREVIEW at its settled PREVIEW-WINDOW viewport before measuring.
The GUI frame can acquire its final pixel width after `ebox-dsl-render' has
mounted the split. This setup publication is outside the measured splitter
action, so the action starts from a self-consistent runtime generation rather
than charging initial frame settling to resize."
(let* ((width (ebox-playground--window-viewport-width preview-window))
(report (ebox-buffer-update-report preview))
(published-width (and report
(or (plist-get report :target-viewport-width)
(plist-get report :viewport-width)))))
(unless (numberp width)
(error "flex preview has no settled viewport width"))
(when (not (equal width published-width))
(let ((report (ebox-rerender-buffer-with-context preview width)))
(unless (plist-get report :runtime-published)
(error "flex preview initial viewport was not published"))))
width))
(defun ebox-playground-flex-resize-evaluator-run ()
"Run the real GUI flex preview resize evaluator.
The function returns non-nil only when a sustained splitter resize burst uses
Ebox's immediate serialized viewport hook, publishes every intermediate and
final result through the retained path, and stays under the timing threshold.
It leaves the normal idle prewarm configuration untouched; the daemon evaluator
does not enable background prewarm, keeping the measured action free of
concurrent cache warming CPU work."
(let ((ebox-render-gc-cons-threshold nil)
(ebox-render-gc-cons-percentage nil)
(source nil)
(preview nil)
(preview-window nil)
(warmup-publications 0)
(resize-count 0)
(resize-finished nil)
(action-start nil)
(last-event-elapsed nil)
(resize-publications nil)
(publication-durations nil)
(requested-widths nil)
(accepted-widths nil)
(observer nil)
(native-report nil)
(playground-library (symbol-file 'ebox-playground-open 'defun))
(evaluator-library
(symbol-file 'ebox-playground-flex-resize-evaluator-run 'defun))
(completed-without-error nil)
(ebox-playground-flex-resize-evaluator--output-lines nil)
(checks nil))
(condition-case-unless-debug error-data
(progn
(delete-other-windows)
(setq native-report (ebox-native-reflow-runtime-report))
(unless (plist-get native-report :layout-ready-p)
(error "Flex evaluator requires the prepared native layout module"))
(unless (file-readable-p
ebox-playground-flex-resize-evaluator-fixture)
(error "Flex evaluator fixture is not readable: %s"
ebox-playground-flex-resize-evaluator-fixture))
(setq source
(find-file ebox-playground-flex-resize-evaluator-fixture))
(ebox-dsl-mode)
(setq preview (ebox-dsl-render)
preview-window (get-buffer-window preview (selected-frame)))
(unless (and (buffer-live-p preview)
(window-live-p preview-window))
(error "flex preview was not mounted in a window"))
(redisplay t)
(sleep-for 0.2)
(ebox-playground-flex-resize-evaluator--settle-preview
preview preview-window)
(redisplay t)
(sleep-for 0.2)
;; Observe only accepted, completed Ebox publications. TP emits its
;; paired report first; filtering by provider keeps this evaluator on
;; the public Ebox boundary and avoids timing/advising the rerender
;; implementation itself.
(setq observer
(lambda (_buffer report)
(when (and (eq (plist-get report :provider) 'ebox)
(eq (plist-get report :stage) 'viewport))
(setq resize-count (1+ resize-count)
resize-finished t)
(when action-start
(push (- (float-time) action-start)
resize-publications))
(push (/ (or (plist-get report :duration-ms) 0.0)
1000.0)
publication-durations)
(push (or (plist-get report :target-viewport-width)
(plist-get report :viewport-width))
accepted-widths))))
(ebox-buffer-set-observer preview observer)
(dotimes (index ebox-playground-flex-resize-evaluator-warmup-count)
(window-resize preview-window (if (zerop (% index 2)) -1 1) t)
(redisplay t)
(sleep-for 0.01))
(setq warmup-publications resize-count
resize-count 0
resize-finished nil
resize-publications nil
publication-durations nil
requested-widths nil
accepted-widths nil)
(let* ((start (float-time))
(old-width
(ebox-playground--window-viewport-width preview-window)))
(setq action-start start)
(dotimes (index ebox-playground-flex-resize-evaluator-sample-count)
(let ((delta
(if (< index 28)
(if (zerop (% index 2)) -1 1)
-1)))
(setq last-event-elapsed (- (float-time) start))
(window-resize preview-window delta t)
(push (ebox-playground--window-viewport-width preview-window)
requested-widths)
(redisplay t)
(sleep-for 0.01)))
(let* ((elapsed (- (float-time) start))
(publication-times
(sort (copy-sequence resize-publications) #'<))
(publication-gaps
(cl-loop for tail on publication-times
while (cdr tail)
collect (- (cadr tail) (car tail))))
(first-publication (car publication-times))
(last-publication (car (last publication-times)))
(max-publication
(if publication-durations
(apply #'max publication-durations)
0.0))
(p95-publication
(if publication-durations
(ebox-playground-flex-resize-evaluator--percentile
publication-durations 0.95)
0.0))
(max-gap
(if publication-gaps (apply #'max publication-gaps) 0.0))
(final-latency
(and last-publication
(- last-publication last-event-elapsed)))
(viewport-width
(ebox-playground--window-viewport-width preview-window))
(report (ebox-buffer-update-report preview))
(projection-kind (plist-get report :projection-kind))
(expected-widths (nreverse requested-widths))
(published-widths (nreverse accepted-widths))
(line-widths
(ebox-playground-flex-resize-evaluator--line-widths
preview))
(background
(with-current-buffer preview
face-remapping-alist))
(max-line-width (if line-widths
(apply #'max line-widths)
0))
(fresh-rendered
(and (numberp viewport-width)
(let ((ebox-viewport-width viewport-width)
;; Compare the published visible scroll
;; window with a fresh render at the same
;; viewport height. Omitting this binding
(ebox-viewport-height
(or (plist-get report
:target-viewport-height)
(plist-get report :viewport-height)
36)))
(ebox-render
(ebox-playground-view
ebox-playground-flex-resize-evaluator-fixture
viewport-width)))))
(fresh-render-matches-p
(and (stringp fresh-rendered)
(with-current-buffer preview
(equal-including-properties
(ebox-playground-flex-resize-evaluator--visual-text
(buffer-string))
(ebox-playground-flex-resize-evaluator--visual-text
fresh-rendered)))))
(tp-operations (plist-get report :tp-operation-count))
(projection-retained-p
(and (memq projection-kind
'(viewport-reflow
viewport-reflow-mixed-scroll))
(not (plist-get report :tp-full-root))
(not (plist-get report :tp-scope-fallback)))))
(setq checks
(list
(ebox-playground-flex-resize-evaluator--check
"compiled evaluator artifacts"
(and (stringp playground-library)
(string-suffix-p ".elc" playground-library)
(stringp evaluator-library)
(string-suffix-p ".elc" evaluator-library))
(format "playground=%S evaluator=%S"
playground-library evaluator-library))
(ebox-playground-flex-resize-evaluator--check
"native module prepared"
(plist-get native-report :layout-ready-p)
(format "path=%S hash=%S"
(plist-get native-report :loaded-module-path)
(plist-get native-report :loaded-module-hash)))
(ebox-playground-flex-resize-evaluator--check
"preview mounted"
(and (buffer-live-p preview)
(window-live-p preview-window))
(format "source=%S preview=%S" source preview))
(ebox-playground-flex-resize-evaluator--check
"warmup publications"
(= warmup-publications
ebox-playground-flex-resize-evaluator-warmup-count)
(format "warmups=%d expected=%d"
warmup-publications
ebox-playground-flex-resize-evaluator-warmup-count))
(ebox-playground-flex-resize-evaluator--check
"intermediate resize updates"
(and (= resize-count
ebox-playground-flex-resize-evaluator-sample-count)
(= resize-count (length expected-widths))
first-publication
(<= first-publication
ebox-playground-flex-resize-evaluator-max-update-seconds)
(< first-publication last-event-elapsed))
(format "updates=%d samples=%d first=%.6fs last-event=%.6fs"
resize-count
ebox-playground-flex-resize-evaluator-sample-count
(or first-publication 0.0)
last-event-elapsed))
(ebox-playground-flex-resize-evaluator--check
"per-update p95 budget"
(<= p95-publication
ebox-playground-flex-resize-evaluator-max-update-seconds)
(format "p95=%.6fs threshold=%.6fs"
p95-publication
ebox-playground-flex-resize-evaluator-max-update-seconds))
(ebox-playground-flex-resize-evaluator--check
"per-update max budget"
(<= max-publication
ebox-playground-flex-resize-evaluator-max-update-seconds)
(format "max=%.6fs threshold=%.6fs"
max-publication
ebox-playground-flex-resize-evaluator-max-update-seconds))
(ebox-playground-flex-resize-evaluator--check
"continuous resize cadence"
(<= max-gap
ebox-playground-flex-resize-evaluator-max-gap-seconds)
(format "max-gap=%.6fs threshold=%.6fs"
max-gap
ebox-playground-flex-resize-evaluator-max-gap-seconds))
(ebox-playground-flex-resize-evaluator--check
"final resize latency"
(and final-latency
(>= final-latency 0)
(<= final-latency
ebox-playground-flex-resize-evaluator-max-update-seconds))
(format "final=%.6fs threshold=%.6fs"
(or final-latency -1.0)
ebox-playground-flex-resize-evaluator-max-update-seconds))
(ebox-playground-flex-resize-evaluator--check
"resize completed"
resize-finished
(format "elapsed=%.6fs" elapsed))
(ebox-playground-flex-resize-evaluator--check
"viewport was published"
(and (numberp viewport-width)
(not (equal old-width viewport-width))
(cl-every #'numberp published-widths)
(equal expected-widths published-widths)
(equal viewport-width (car (last published-widths)))
(eq (plist-get report :constraint-source)
'viewport)
(plist-get report :runtime-published))
(format "viewport=%S expected=%S accepted=%S strategy=%S"
viewport-width expected-widths published-widths
(plist-get report :strategy)))
(ebox-playground-flex-resize-evaluator--check
"retained viewport projection"
projection-retained-p
(format "projection=%S axes=%S reconciled=%S full-root=%S scope-fallback=%S"
projection-kind
(plist-get report :viewport-axes)
(plist-get report :reconciled-objects)
(plist-get report :tp-full-root)
(plist-get report :tp-scope-fallback)))
(ebox-playground-flex-resize-evaluator--check
"rendered output matches a fresh viewport render"
fresh-render-matches-p
(format "max-line-width=%d viewport=%S fresh-length=%S"
max-line-width viewport-width
(and fresh-rendered
(length fresh-rendered))))
(ebox-playground-flex-resize-evaluator--check
"canvas background is preserved"
(equal background
'((default (:background "#FAF7F0"))) )
(format "face-remapping=%S" background))
(ebox-playground-flex-resize-evaluator--check
"bounded resize burst"
(<= elapsed
ebox-playground-flex-resize-evaluator-max-seconds)
(format "elapsed=%.6fs threshold=%.6fs"
elapsed
ebox-playground-flex-resize-evaluator-max-seconds))))
(push (format
"RESIZE warmups=%d samples=%d old-viewport-px=%S new-viewport-px=%S total=%.6fs p95-update=%.6fs max-update=%.6fs first=%.6fs max-gap=%.6fs final=%.6fs strategy=%S projection=%S axes=%S reconciled=%S tp-ops=%S cache-hits=%S cache-misses=%S"
warmup-publications resize-count old-width viewport-width
elapsed p95-publication max-publication
(or first-publication 0.0) max-gap
(or final-latency -1.0)
(plist-get report :strategy) projection-kind
(plist-get report :viewport-axes)
(plist-get report :reconciled-objects)
tp-operations
(plist-get report :cache-hit-count)
(plist-get report :cache-miss-count))
ebox-playground-flex-resize-evaluator--output-lines)
(setq completed-without-error t)
(and resize-finished
(cl-every #'identity checks)))))
(error
(push (format "FAIL evaluator error -- %S" error-data)
ebox-playground-flex-resize-evaluator--output-lines)
nil)
(quit
(push "FAIL evaluator interrupted"
ebox-playground-flex-resize-evaluator--output-lines)
nil))
(when (and (buffer-live-p preview) observer)
(ebox-buffer-set-observer preview nil))
(when (buffer-live-p preview)
(kill-buffer preview))
(when (buffer-live-p source)
(kill-buffer source))
(let ((passed (and completed-without-error
(not (null checks))
(cl-every #'identity checks))))
(push (if passed
"FLEX-RESIZE-EVALUATOR PASS"
"FLEX-RESIZE-EVALUATOR FAIL")
ebox-playground-flex-resize-evaluator--output-lines)
(mapconcat #'identity
(nreverse ebox-playground-flex-resize-evaluator--output-lines)
"\n"))))
(provide 'ebox-playground-flex-resize-evaluator)
;;; ebox-playground-flex-resize-evaluator.el ends here