(r => (release = r));
+ });
+
+ function Content(props: { enabled: () => boolean }): JSX.Element {
+ if (shape === "no memo")
+ return (
+
+ Hello{props.enabled() ? " world" : ""}
+
+ );
+ if (shape === "memo, static text")
+ return createMemo(() => (
+ Hello world
+ )) as unknown as JSX.Element;
+ return createMemo(() => (
+
+ Hello{props.enabled() ? " world" : ""}
+
+ )) as unknown as JSX.Element;
+ }
+
+ const dispose = render(
+ () => (
+
+
+
+ ),
+ root
+ );
+ flush();
+ expect(root.innerHTML).toBe("");
+
+ const pending = run();
+ flush();
+ await settle();
+ const div = root.querySelector("div")!;
+ expect(div.style.color).toBe("red");
+ expect(div.textContent).toBe(shape === "memo, static text" ? "Hello world" : "Hello");
+
+ release();
+ await pending;
+ await settle();
+ expect(root.querySelector("div")).toBe(div);
+ expect(div.style.color).toBe("blue");
+ expect(div.textContent).toBe("Hello world");
+ dispose();
+ });
+}
diff --git a/packages/web/test/runtime/chunk-reader-hardening.spec.ts b/packages/web/test/runtime/chunk-reader-hardening.spec.ts
index b92944d7a..dfd90c6b2 100644
--- a/packages/web/test/runtime/chunk-reader-hardening.spec.ts
+++ b/packages/web/test/runtime/chunk-reader-hardening.spec.ts
@@ -9,11 +9,7 @@
* - An oversized store is released once nothing in it is unread.
*/
import { describe, expect, it } from "vitest";
-import {
- ChunkReader,
- createChunk,
- deserializeStream
-} from "../../server-functions/src/shared.js";
+import { ChunkReader, createChunk, deserializeStream } from "../../server-functions/src/shared.js";
const encoder = new TextEncoder();
@@ -188,7 +184,9 @@ describe("ChunkReader cleanup", () => {
it("releases a large frame's store as soon as the stream goes idle", async () => {
// No frame follows: the connection waits, as a live source does.
- const reader = new ChunkReader(source(reads(createChunk("x".repeat(8 << 20))), { hold: true }).stream);
+ const reader = new ChunkReader(
+ source(reads(createChunk("x".repeat(8 << 20))), { hold: true }).stream
+ );
expect((await reader.next()).value).toHaveLength(8 << 20);
expect(storeOf(reader).length).toBe(0);
reader.cancel(undefined);
@@ -210,7 +208,9 @@ describe("ChunkReader cleanup", () => {
});
it("keeps a store at or under 64 KiB across frames", async () => {
- const frames = Array.from({ length: 20 }, (_, i) => createChunk(`frame-${i}-` + "y".repeat(300)));
+ const frames = Array.from({ length: 20 }, (_, i) =>
+ createChunk(`frame-${i}-` + "y".repeat(300))
+ );
const reader = new ChunkReader(source([concat(frames)], { hold: true }).stream);
await reader.next();
const store = storeOf(reader);
diff --git a/scripts/size/floor-caps.json b/scripts/size/floor-caps.json
index a80fdc7ce..142b7db2d 100644
--- a/scripts/size/floor-caps.json
+++ b/scripts/size/floor-caps.json
@@ -1,23 +1,23 @@
{
"signals: core floor (createSignal/Memo/Effect/Root/flush)": {
- "cap": "7.35 KB",
- "minified": 20133
+ "cap": "7.40 KB",
+ "minified": 20178
},
"app: render + one signal (the simple-app floor)": {
- "cap": "9.86 KB",
- "minified": 27687
+ "cap": "9.88 KB",
+ "minified": 27731
},
"app: hydrating (no stores) with Show/For/Loading/Errored/lazy": {
"cap": "17.73 KB",
"minified": 52626
},
"page: base server components (hydrating + dynamic + frames + sf reference)": {
- "cap": "45.12 KB",
- "minified": 146295
+ "cap": "45.14 KB",
+ "minified": 146424
},
"page: live server components (base + live/GET + action + isPending/latest)": {
- "cap": "48.89 KB",
- "minified": 158377
+ "cap": "48.91 KB",
+ "minified": 158537
},
"server: floor (getRequestEvent + isServer)": {
"cap": "1.34 KB",
diff --git a/scripts/size/scenarios.js b/scripts/size/scenarios.js
index 46be9773b..b9e44c26d 100644
--- a/scripts/size/scenarios.js
+++ b/scripts/size/scenarios.js
@@ -496,6 +496,16 @@ module.exports = [
// unchanged at 7.35 KB, recorded minified 20,133 B (first record);
// CI-measured at 7,361 B (20,133 B minified). Lower only: cap at measured +
// 10 B rounded up to 0.01 KB; recorded minified never raised.
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 7.35 KB -> 7.40 KB (floor-caps.json), measured at 7,384 B
+ // by CI (Size run 37642512669) against `next` @ 53ef0e69e's 7,374 (+10 B;
+ // 34 B over the cap; +34 B minified, 20,144 -> 20,178; recorded 20,133 ->
+ // 20,178) — the signals core: a first pass seated in its creator's guess
+ // lane, the verdict-lane filter, lane work over a pending flight entering
+ // (#3843), a verdict lane's mount born held for a staged read, and
+ // verdict-lane stagedReaders. Cap set at measured + 10 B rounded up to
+ // 0.01 KB. Accepted by the maintainer 2026-10-07. The cap is frozen again
+ // at 7.40 KB.
limit: floorCaps["signals: core floor (createSignal/Memo/Effect/Root/flush)"],
capMinified: floorMinified["signals: core floor (createSignal/Memo/Effect/Root/flush)"],
alias
@@ -919,8 +929,17 @@ module.exports = [
// unchanged at 14.56 KB, recorded minified 44,396 B (first record);
// CI-measured at 14,540 B (44,396 B minified). Lower only: cap at measured
// + 10 B rounded up to 0.01 KB; recorded minified never raised.
- limit: "14.56 KB",
- capMinified: 44396,
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 14.56 KB -> 14.62 KB, measured at 14,606 B by CI (Size run
+ // 37642512669) against `next` @ 53ef0e69e's 14,603 (+3 B; 46 B over the
+ // cap; +32 B minified, 44,407 -> 44,439; recorded 44,396 -> 44,439) — the
+ // signals core: a first pass seated in its creator's guess lane, the
+ // verdict-lane filter, lane work over a pending flight entering (#3843), a
+ // verdict lane's mount born held for a staged read, and verdict-lane
+ // stagedReaders. Cap set at measured + 10 B rounded up to 0.01 KB.
+ // Accepted by the maintainer 2026-10-07.
+ limit: "14.62 KB",
+ capMinified: 44439,
alias
},
{
@@ -1369,6 +1388,16 @@ module.exports = [
// unchanged at 9.86 KB, recorded minified 27,687 B (first record);
// CI-measured at 9,856 B (27,687 B minified). Lower only: cap at measured +
// 10 B rounded up to 0.01 KB; recorded minified never raised.
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 9.86 KB -> 9.88 KB (floor-caps.json), measured at 9,867 B
+ // by CI (Size run 37642512669) against `next` @ 53ef0e69e's 9,884 (-17 B;
+ // 7 B over the cap; +33 B minified, 27,698 -> 27,731; recorded 27,687 ->
+ // 27,731) — the signals core: a first pass seated in its creator's guess
+ // lane, the verdict-lane filter, lane work over a pending flight entering
+ // (#3843), a verdict lane's mount born held for a staged read, and
+ // verdict-lane stagedReaders. Cap set at measured + 10 B rounded up to
+ // 0.01 KB. Accepted by the maintainer 2026-10-07. The cap is frozen again
+ // at 9.88 KB.
limit: floorCaps["app: render + one signal (the simple-app floor)"],
capMinified: floorMinified["app: render + one signal (the simple-app floor)"],
alias
@@ -2384,8 +2413,17 @@ module.exports = [
// unchanged at 12.86 KB, recorded minified 36,568 B (first record);
// CI-measured at 12,905 B (36,568 B minified). Lower only: cap at measured
// + 10 B rounded up to 0.01 KB; recorded minified never raised.
- limit: "12.86 KB",
- capMinified: 36568,
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 12.86 KB -> 12.88 KB, measured at 12,866 B by CI (Size run
+ // 37642512669) against `next` @ 53ef0e69e's 12,890 (-24 B; 6 B over the
+ // cap; +33 B minified, 36,584 -> 36,617; recorded 36,568 -> 36,617) — the
+ // signals core: a first pass seated in its creator's guess lane, the
+ // verdict-lane filter, lane work over a pending flight entering (#3843), a
+ // verdict lane's mount born held for a staged read, and verdict-lane
+ // stagedReaders. Cap set at measured + 10 B rounded up to 0.01 KB.
+ // Accepted by the maintainer 2026-10-07.
+ limit: "12.88 KB",
+ capMinified: 36617,
alias
},
{
@@ -3103,8 +3141,17 @@ module.exports = [
// unchanged at 10.05 KB, recorded minified 28,218 B (first record);
// CI-measured at 10,031 B (28,218 B minified). Lower only: cap at measured
// + 10 B rounded up to 0.01 KB; recorded minified never raised.
- limit: "10.05 KB",
- capMinified: 28218,
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 10.05 KB -> 10.07 KB, measured at 10,058 B by CI (Size run
+ // 37642512669) against `next` @ 53ef0e69e's 10,042 (+16 B; 8 B over the
+ // cap; +32 B minified, 28,229 -> 28,261; recorded 28,218 -> 28,261) — the
+ // signals core: a first pass seated in its creator's guess lane, the
+ // verdict-lane filter, lane work over a pending flight entering (#3843), a
+ // verdict lane's mount born held for a staged read, and verdict-lane
+ // stagedReaders. Cap set at measured + 10 B rounded up to 0.01 KB.
+ // Accepted by the maintainer 2026-10-07.
+ limit: "10.07 KB",
+ capMinified: 28261,
alias
},
{
@@ -3144,8 +3191,17 @@ module.exports = [
// unchanged at 25.13 KB, recorded minified 78,898 B (first record);
// CI-measured at 25,129 B (78,898 B minified). Lower only: cap at measured
// + 10 B rounded up to 0.01 KB; recorded minified never raised.
- limit: "25.13 KB",
- capMinified: 78898,
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 25.13 KB -> 25.22 KB, measured at 25,207 B by CI (Size run
+ // 37642512669) against `next` @ 53ef0e69e's 25,197 (+10 B; 77 B over the
+ // cap; +33 B minified, 78,913 -> 78,946; recorded 78,898 -> 78,946) — the
+ // signals core: a first pass seated in its creator's guess lane, the
+ // verdict-lane filter, lane work over a pending flight entering (#3843), a
+ // verdict lane's mount born held for a staged read, and verdict-lane
+ // stagedReaders. Cap set at measured + 10 B rounded up to 0.01 KB.
+ // Accepted by the maintainer 2026-10-07.
+ limit: "25.22 KB",
+ capMinified: 78946,
alias
},
{
@@ -3188,8 +3244,17 @@ module.exports = [
// measured + 10 B; recorded minified 99,257 B. Accepted by the maintainer
// (2026-10-06, "pay the cost for correctness"). The cap is frozen again
// at 31.03 KB.
- limit: "31.03 KB",
- capMinified: 99257,
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 31.03 KB -> 31.06 KB, measured at 31,050 B by CI (Size run
+ // 37642512669) against `next` @ 53ef0e69e's 30,958 (+92 B; 20 B over the
+ // cap; +33 B minified, 99,272 -> 99,305; recorded 99,257 -> 99,305) — the
+ // signals core: a first pass seated in its creator's guess lane, the
+ // verdict-lane filter, lane work over a pending flight entering (#3843), a
+ // verdict lane's mount born held for a staged read, and verdict-lane
+ // stagedReaders. Cap set at measured + 10 B rounded up to 0.01 KB.
+ // Accepted by the maintainer 2026-10-07.
+ limit: "31.06 KB",
+ capMinified: 99305,
alias
},
{
@@ -3618,6 +3683,16 @@ module.exports = [
// at measured + 10 B rounded up to 0.01 KB; recorded minified 146,295 B.
// Accepted by the maintainer (2026-10-07: server-function/frames reader
// correctness). The cap is frozen again at 45.12 KB.
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 45.12 KB -> 45.14 KB (floor-caps.json), measured at 45,130
+ // B by CI (Size run 37642512669) against `next` @ 53ef0e69e's 45,117 (+13
+ // B; 10 B over the cap; +33 B minified, 146,391 -> 146,424; recorded
+ // 146,295 -> 146,424) — the signals core: a first pass seated in its
+ // creator's guess lane, the verdict-lane filter, lane work over a pending
+ // flight entering (#3843), a verdict lane's mount born held for a staged
+ // read, and verdict-lane stagedReaders. Cap set at measured + 10 B rounded
+ // up to 0.01 KB. Accepted by the maintainer 2026-10-07. The cap is frozen
+ // again at 45.14 KB.
limit: floorCaps["page: base server components (hydrating + dynamic + frames + sf reference)"],
capMinified:
floorMinified["page: base server components (hydrating + dynamic + frames + sf reference)"],
@@ -3754,6 +3829,16 @@ module.exports = [
// retains. Cap set at measured + 10 B rounded up to 0.01 KB; recorded
// minified 158,377 B. Accepted by the maintainer 2026-10-07. The cap is
// frozen again at 48.89 KB.
+ // Size-Exception (first-pass lane seating, #3869 — #3835/#3851,
+ // 2026-10-07): 48.89 KB -> 48.91 KB (floor-caps.json), measured at 48,892
+ // B by CI (Size run 37642512669) against `next` @ 53ef0e69e's 48,831 (+61
+ // B; 2 B over the cap; +60 B minified, 158,477 -> 158,537; recorded
+ // 158,377 -> 158,537) — the signals core: a first pass seated in its
+ // creator's guess lane, the verdict-lane filter, lane work over a pending
+ // flight entering (#3843), a verdict lane's mount born held for a staged
+ // read, and verdict-lane stagedReaders. Cap set at measured + 10 B rounded
+ // up to 0.01 KB. Accepted by the maintainer 2026-10-07. The cap is frozen
+ // again at 48.91 KB.
limit: floorCaps["page: live server components (base + live/GET + action + isPending/latest)"],
capMinified:
floorMinified["page: live server components (base + live/GET + action + isPending/latest)"],