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Merge master into worktree/semantic-session-checkpoints

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This commit is contained in:
Tianyi Cui
2026-07-22 20:50:46 +08:00
parent a5302d4d64 451fad5a2b
commit 2478ef7d6d
611 changed files with 42224 additions and 1190 deletions
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24
packages/core/session/src/surface.ts
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@@ -2,10 +2,12 @@
* Surface layer on top of the session event log: an ordered view of events
* that produce LLM messages. The append-only log remains the source of truth.
*
* Browser-safe: web clients consume this subpath export, so it must stay free
* of `node:` imports (they break the vite bundle).
*
* @module @deepseek-ai/dsh-session/surface
*/
import { isDeepStrictEqual } from 'node:util'
import type { SessionEvent, SurfaceEvent, SurfaceEventType, SurfaceOp } from './types.ts'
/** Runtime counterpart of the message-producing event union. */
@@ -188,6 +190,24 @@ function replacementRange(
}
}
/**
* Deep structural equality over the session-event JSON value domain
* (null/boolean/number/string, arrays, plain objects). Replaces
* `node:util`'s isDeepStrictEqual to keep this module browser-safe.
*/
function isDeepEqualJson(a: unknown, b: unknown): boolean {
if (a === b) return true
if (Array.isArray(a) || Array.isArray(b)) {
if (!Array.isArray(a) || !Array.isArray(b) || a.length !== b.length) return false
return a.every((item, i) => isDeepEqualJson(item, b[i]))
}
if (typeof a !== 'object' || typeof b !== 'object' || a === null || b === null) return false
const aKeys = Object.keys(a)
const bRecord = b as Record<string, unknown>
if (aKeys.length !== Object.keys(b).length) return false
return aKeys.every(key => Object.hasOwn(b, key) && isDeepEqualJson((a as Record<string, unknown>)[key], bRecord[key]))
}
/** Restrict a tool-result replacement to one current result's content. */
function assertToolResultRewrite(
event: SessionEvent,
@@ -207,7 +227,7 @@ function assertToolResultRewrite(
const replacementRest = { ...event.data } as Record<string, unknown>
delete originalRest['content']
delete replacementRest['content']
if (!isDeepStrictEqual(originalRest, replacementRest)) {
if (!isDeepEqualJson(originalRest, replacementRest)) {
throw new Error('tool/result surface replacement may change only content')
}
}