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fix(invariants): replay histories and pack companions

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This commit is contained in:
Tianyi Cui
2026-07-21 17:46:43 +08:00
parent 2434afd2ef
commit 504fbf59f3
18 changed files with 322 additions and 74 deletions
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29
packages/context/time-context/src/invariant.ts
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@@ -19,10 +19,10 @@ export const name = 'time-context-invariant'
export const inject = ['invariants']
/** Derive the pre-step position at which a time-context reading may append. */
function preparationPosition(session: Session, fail: InvariantFailure): { turn: number; step: number } {
function preparationPosition(history: readonly SessionEvent[], fail: InvariantFailure): { turn: number; step: number } {
const currentTurnEvents: SessionEvent[] = []
let openTurn: number | undefined
for (const event of session.events.slice().reverse()) {
for (const event of history.slice().reverse()) {
if (event.type === 'turn/end') {
fail('time-context reading must be appended inside an open turn')
}
@@ -47,7 +47,7 @@ function preparationPosition(session: Session, fail: InvariantFailure): { turn:
/** Validate one plugin-attributed time reading against its session position and timestamp. */
function validateReading(
session: Session,
history: readonly SessionEvent[],
event: SessionEvent<'context/message'>,
fail: InvariantFailure,
): void {
@@ -62,7 +62,7 @@ function validateReading(
if (!Number.isSafeInteger(turn) || turn < 1 || !Number.isSafeInteger(step) || step < 1) {
fail('time-context turn and step must be positive safe integers')
}
const expected = preparationPosition(session, fail)
const expected = preparationPosition(history, fail)
if (turn !== expected.turn || step !== expected.step) {
fail(`time-context reading names turn ${turn}/step ${step}, expected turn ${expected.turn}/step ${expected.step}`)
}
@@ -80,17 +80,30 @@ function validateReading(
}
}
/** Install validation for plugin-attributed context readings. */
const install: InvariantInstaller = (ctx, fail) => {
/* jscpd:ignore-start -- package companions share replay and dispatch plumbing */
/** Validate all package-owned readings already present in one session. */
function validateSession(session: Session, fail: InvariantFailure): void {
for (const [index, event] of session.events.entries()) {
if (event.type !== 'context/message'
|| event.data.source.kind !== 'plugin'
|| event.data.source.plugin !== SOURCE_NAME) continue
validateReading(session.events.slice(0, index), event, fail)
}
}
/** Install validation for loaded and newly appended context readings. */
const install: InvariantInstaller = Object.assign((ctx: Context, fail: InvariantFailure) => {
for (const session of ctx.sessions.list()) validateSession(session, fail)
ctx.on('internal/dispatch', (_mode, eventName, args) => {
if (eventName !== 'session/event') return
const [session, event] = args as [Session, SessionEvent]
if (event.type !== 'context/message'
|| event.data.source.kind !== 'plugin'
|| event.data.source.plugin !== SOURCE_NAME) return
validateReading(session, event, fail)
validateReading(session.events, event, fail)
}, { global: true })
}
}, { inject: ['sessions'] })
/* jscpd:ignore-end */
/**
* Register the time-context invariant companion.