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refactor: expose plugin runtime as effect service

t3-code[bot] committed 2 months ago

Commit 14cd84c1 parent 60a9cb38 files · +1385 −1138Browse files

Showing the changes to packages/plugin-runtime/src (3 of 8 files). Show all

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3 files
  1. packages/plugin-runtime/src/contract.ts +0 −10
  2. packages/plugin-runtime/src/index.ts +7 −3
  3. packages/plugin-runtime/src/runtime.ts +289 −276
packages/plugin-runtime/src/contract.ts+0−10
@@ -23,14 +23,6 @@ export interface PluginRuntimeSnapshot { · 22 unmodified lines
2323 readonly contributions: Readonly<Partial<Record<string, ReadonlyArray<Contribution>>>>;
2424 }
2525
26−export interface PluginRuntime {
27− readonly reconcile: (
28− definitions: ReadonlyArray<PluginDefinition>,
29− ) => Promise<PluginRuntimeSnapshot>;
30− readonly snapshot: () => PluginRuntimeSnapshot;
31− readonly dispose: () => Promise<void>;
32−}
33−
3426 export interface PluginRuntimeOptions {
3527 readonly onLifecycle?: (event: {
3628 readonly phase: "activate" | "deactivate";
@@ -46,5 +38,3 @@ export interface PluginRuntimeOptions { · 9 unmodified lines
4638 readonly error: unknown;
4739 }) => void;
4840 }
49−
50−export type PluginRuntimeFactory = (options?: PluginRuntimeOptions) => PluginRuntime;
packages/plugin-runtime/src/index.ts+7−3
@@ -2,9 +2,13 @@ export type { · 1 unmodified line
22 Contribution,
33 PluginActivationContext,
44 PluginDefinition,
5− PluginRuntime,
6− PluginRuntimeFactory,
75 PluginRuntimeOptions,
86 PluginRuntimeSnapshot,
97 } from "./contract.ts";
10−export { createPluginRuntime } from "./runtime.ts";
8+export {
9+ layer,
10+ make,
11+ PluginRuntime,
12+ type PluginRuntimeDisposeError,
13+ type PluginRuntimeReconcileError,
14+} from "./runtime.ts";
packages/plugin-runtime/src/runtime.ts+289−276
@@ -1,17 +1,19 @@
11 import * as NodeAsyncHooks from "node:async_hooks";
22
33 import * as Cause from "effect/Cause";
4+import * as Context from "effect/Context";
45 import * as Effect from "effect/Effect";
56 import * as Exit from "effect/Exit";
7+import * as Layer from "effect/Layer";
68 import * as Schema from "effect/Schema";
9+import * as Semaphore from "effect/Semaphore";
710 import * as Scope from "effect/Scope";
811
912 import type {
1013 Contribution,
1114 PluginActivationContext,
1215 PluginDefinition,
13− PluginRuntime,
14− PluginRuntimeFactory,
16+ PluginRuntimeOptions,
1517 PluginRuntimeSnapshot,
1618 } from "./contract.ts";
1719 import {
@@ -137,12 +139,26 @@ class PluginRuntimeCleanupError extends Schema.TaggedErrorClass<PluginRuntimeCle · 119 unmodified lines
137139 }
138140 }
139141
140−type PluginReconcileError =
142+export type PluginRuntimeReconcileError =
141143 | PluginPlanningError
142144 | PluginCallbackError
143145 | PluginRuntimeDisposedError
146+ | PluginRuntimeReentrancyError
144147 | PluginStagingError;
145148
149+export type PluginRuntimeDisposeError = PluginRuntimeCleanupError | PluginRuntimeReentrancyError;
150+
151+export class PluginRuntime extends Context.Service<
152+ PluginRuntime,
153+ {
154+ readonly reconcile: (
155+ definitions: ReadonlyArray<PluginDefinition>,
156+ ) => Effect.Effect<PluginRuntimeSnapshot, PluginRuntimeReconcileError>;
157+ readonly snapshot: Effect.Effect<PluginRuntimeSnapshot>;
158+ readonly dispose: Effect.Effect<void, PluginRuntimeDisposeError>;
159+ }
160+>()("@t3tools/plugin-runtime/runtime/PluginRuntime") {}
161+
146162 const createNullPrototypeRecord = <Value>(): Record<string, Value> =>
147163 Object.create(null) as Record<string, Value>;
148164
@@ -195,300 +211,297 @@ const snapshotOf = ( · 46 unmodified lines
195211 });
196212 };
197213
198−export const createPluginRuntime: PluginRuntimeFactory = (options = {}): PluginRuntime => {
199− let current: LiveComposition = { plugins: [], snapshot: emptySnapshot() };
200− let disposed = false;
201− let transition: Promise<void> = Promise.resolve();
202− let runtimeScope: Scope.Closeable | undefined;
203− const callbackContext = new NodeAsyncHooks.AsyncLocalStorage<PluginCallbackContext>();
204−
205− const getRuntimeScope = (): Effect.Effect<Scope.Closeable> =>
206− Effect.gen(function* () {
207− if (runtimeScope === undefined) runtimeScope = yield* Scope.make("sequential");
208− return runtimeScope;
209− });
210−
211− const reportLifecycle = (
212− phase: "activate" | "deactivate",
213− pluginId: string,
214− ): Effect.Effect<void> =>
215− Effect.sync(() => {
216− try {
217− options.onLifecycle?.({ phase, pluginId });
218− } catch (error) {
219− try {
220− options.onLifecycleError?.({ phase, pluginId, error });
221− } catch {
222− // Observer error reporting must never interrupt a commit or cleanup.
223− }
224− }
225− });
226−
227− const reportCleanupErrors = (
228− phase: "retire" | "rollback",
229− failures: ReadonlyArray<CleanupFailure>,
230− ): Effect.Effect<void> =>
231− Effect.sync(() => {
232− for (const { error } of failures) {
214+export const make = (options: PluginRuntimeOptions = {}) =>
215+ Effect.gen(function* () {
216+ const parentScope = yield* Effect.scope;
217+ const transitionSemaphore = yield* Semaphore.make(1);
218+ let current: LiveComposition = { plugins: [], snapshot: emptySnapshot() };
219+ let disposed = false;
220+ const callbackContext = new NodeAsyncHooks.AsyncLocalStorage<PluginCallbackContext>();
221+
222+ const reportLifecycle = (
223+ phase: "activate" | "deactivate",
224+ pluginId: string,
225+ ): Effect.Effect<void> =>
226+ Effect.sync(() => {
233227 try {
234− options.onCleanupError?.({ phase, error });
235− } catch {
236− // Cleanup reporting must not replace activation errors or undo a committed snapshot.
237− }
238− }
239− });
240−
241− const closePlugins = (
242− plugins: ReadonlyArray<LivePlugin>,
243− notifyDeactivation: boolean,
244− ): Effect.Effect<ReadonlyArray<CleanupFailure>> =>
245− Effect.gen(function* () {
246− const failures: Array<CleanupFailure> = [];
247− for (const plugin of plugins.toReversed()) {
248− const closeExit = yield* Effect.exit(Scope.close(plugin.scope, Exit.void));
249− if (Exit.isFailure(closeExit)) {
250− failures.push({
251− error: Cause.squash(closeExit.cause),
252− pluginId: plugin.definition.id,
253− });
254− }
255− for (const error of plugin.cleanupErrors.splice(0)) {
256− failures.push({ error, pluginId: plugin.definition.id });
257− }
258− if (notifyDeactivation) {
259− yield* reportLifecycle("deactivate", plugin.definition.id);
228+ options.onLifecycle?.({ phase, pluginId });
229+ } catch (error) {
230+ try {
231+ options.onLifecycleError?.({ phase, pluginId, error });
232+ } catch {
233+ // Observer error reporting must never interrupt a commit or cleanup.
234+ }
260235 }
261− }
262− return failures;
263− });
236+ });
264237
265− const invokePluginCallback = <Result>(
266− callback: PluginCallback,
267− pluginId: string,
268− invoke: () => Result | PromiseLike<Result>,
269− onSettled?: () => void,
270− ): Effect.Effect<Result, PluginCallbackError> =>
271− Effect.tryPromise({
272− try: async () => {
273− const callbackState: PluginCallbackContext = { active: true, callback, pluginId };
274− let settled = false;
275− const settle = () => {
276− if (settled) return;
277− settled = true;
278− callbackState.active = false;
279− onSettled?.();
280− };
281− try {
282− const result = callbackContext.run(callbackState, invoke);
283− if (typeof result === "object" && result !== null && "then" in result) {
284− return await Promise.resolve(result).finally(settle);
238+ const reportCleanupErrors = (
239+ phase: "retire" | "rollback",
240+ failures: ReadonlyArray<CleanupFailure>,
241+ ): Effect.Effect<void> =>
242+ Effect.sync(() => {
243+ for (const { error } of failures) {
244+ try {
245+ options.onCleanupError?.({ phase, error });
246+ } catch {
247+ // Cleanup reporting must not replace activation errors or undo a committed snapshot.
285248 }
286− settle();
287− return result;
288− } catch (error) {
289− settle();
290− throw error;
291249 }
292− },
293− catch: (cause) => new PluginCallbackError({ callback, cause, pluginId }),
294− });
250+ });
295251
296− const activatePlugin = (
297− definition: PluginDefinition,
298− capabilities: ReadonlyMap<string, unknown>,
299− ): Effect.Effect<LivePlugin, PluginCallbackError> =>
300− Effect.gen(function* () {
301− const parentScope = yield* getRuntimeScope();
302− const scope = yield* Scope.fork(parentScope, "sequential");
303− const contributions = new Map<string, Array<Contribution>>();
304− const cleanupErrors: Array<unknown> = [];
305− const finalizers: Array<() => void | Promise<void>> = [];
306− const plugin: LivePlugin = { definition, scope, contributions, cleanupErrors };
307− let activating = true;
308− const assertActivating = (method: "resolve" | "register" | "onDispose") => {
309− if (!activating) {
310− throw new PluginActivationContextExpiredError({ method, pluginId: definition.id });
252+ const closePlugins = (
253+ plugins: ReadonlyArray<LivePlugin>,
254+ notifyDeactivation: boolean,
255+ ): Effect.Effect<ReadonlyArray<CleanupFailure>> =>
256+ Effect.gen(function* () {
257+ const failures: Array<CleanupFailure> = [];
258+ for (const plugin of plugins.toReversed()) {
259+ const closeExit = yield* Effect.exit(Scope.close(plugin.scope, Exit.void));
260+ if (Exit.isFailure(closeExit)) {
261+ failures.push({
262+ error: Cause.squash(closeExit.cause),
263+ pluginId: plugin.definition.id,
264+ });
265+ }
266+ for (const error of plugin.cleanupErrors.splice(0)) {
267+ failures.push({ error, pluginId: plugin.definition.id });
268+ }
269+ if (notifyDeactivation) {
270+ yield* reportLifecycle("deactivate", plugin.definition.id);
271+ }
311272 }
312− };
273+ return failures;
274+ });
313275
314− const context: PluginActivationContext = {
315− resolve: <Service>(capability: string): Service => {
316− assertActivating("resolve");
317− if (!(definition.requires ?? []).includes(capability)) {
318− throw new PluginUndeclaredCapabilityError({ capability, pluginId: definition.id });
319− }
320− if (!capabilities.has(capability)) {
321− throw new PluginResolutionError({ capability, pluginId: definition.id });
276+ const invokePluginCallback = <Result>(
277+ callback: PluginCallback,
278+ pluginId: string,
279+ invoke: () => Result | PromiseLike<Result>,
280+ onSettled?: () => void,
281+ ): Effect.Effect<Result, PluginCallbackError> =>
282+ Effect.tryPromise({
283+ try: async () => {
284+ const callbackState: PluginCallbackContext = { active: true, callback, pluginId };
285+ let settled = false;
286+ const settle = () => {
287+ if (settled) return;
288+ settled = true;
289+ callbackState.active = false;
290+ onSettled?.();
291+ };
292+ try {
293+ const result = callbackContext.run(callbackState, invoke);
294+ if (typeof result === "object" && result !== null && "then" in result) {
295+ return await Promise.resolve(result).finally(settle);
296+ }
297+ settle();
298+ return result;
299+ } catch (error) {
300+ settle();
301+ throw error;
322302 }
323− return capabilities.get(capability) as Service;
324− },
325− register: (slot, contribution) => {
326− assertActivating("register");
327− const values = contributions.get(slot) ?? [];
328− values.push(Object.freeze({ id: contribution.id, label: contribution.label }));
329− contributions.set(slot, values);
330− },
331− onDispose: (finalizer) => {
332− assertActivating("onDispose");
333− finalizers.push(finalizer);
334303 },
335− };
336−
337− const activationExit = yield* Effect.exit(
338− invokePluginCallback(
339− "activate",
340− definition.id,
341− () => definition.activate(context),
342− () => {
343− activating = false;
304+ catch: (cause) => new PluginCallbackError({ callback, cause, pluginId }),
305+ });
306+
307+ const activatePlugin = (
308+ definition: PluginDefinition,
309+ capabilities: ReadonlyMap<string, unknown>,
310+ ): Effect.Effect<LivePlugin, PluginCallbackError> =>
311+ Effect.gen(function* () {
312+ const scope = yield* Scope.fork(parentScope, "sequential");
313+ const contributions = new Map<string, Array<Contribution>>();
314+ const cleanupErrors: Array<unknown> = [];
315+ const finalizers: Array<() => void | Promise<void>> = [];
316+ const plugin: LivePlugin = { definition, scope, contributions, cleanupErrors };
317+ let activating = true;
318+ const assertActivating = (method: "resolve" | "register" | "onDispose") => {
319+ if (!activating) {
320+ throw new PluginActivationContextExpiredError({ method, pluginId: definition.id });
321+ }
322+ };
323+
324+ const context: PluginActivationContext = {
325+ resolve: <Service>(capability: string): Service => {
326+ assertActivating("resolve");
327+ if (!(definition.requires ?? []).includes(capability)) {
328+ throw new PluginUndeclaredCapabilityError({ capability, pluginId: definition.id });
329+ }
330+ if (!capabilities.has(capability)) {
331+ throw new PluginResolutionError({ capability, pluginId: definition.id });
332+ }
333+ return capabilities.get(capability) as Service;
344334 },
345− ),
346− );
347− for (const finalizer of finalizers) {
348− const finalizerEffect = invokePluginCallback("finalizer", definition.id, finalizer).pipe(
349− Effect.catch((error) =>
350− Effect.sync(() => {
351− cleanupErrors.push(error);
352− }),
335+ register: (slot, contribution) => {
336+ assertActivating("register");
337+ const values = contributions.get(slot) ?? [];
338+ values.push(Object.freeze({ id: contribution.id, label: contribution.label }));
339+ contributions.set(slot, values);
340+ },
341+ onDispose: (finalizer) => {
342+ assertActivating("onDispose");
343+ finalizers.push(finalizer);
344+ },
345+ };
346+
347+ const activationExit = yield* Effect.exit(
348+ invokePluginCallback(
349+ "activate",
350+ definition.id,
351+ () => definition.activate(context),
352+ () => {
353+ activating = false;
354+ },
353355 ),
354356 );
355− yield* Scope.addFinalizer(scope, finalizerEffect);
356− }
357−
358− if (Exit.isFailure(activationExit)) {
359− const failures = yield* closePlugins([plugin], false);
360− yield* reportCleanupErrors("rollback", failures);
361− return yield* Effect.failCause(activationExit.cause);
362− }
363− return plugin;
364− });
357+ for (const finalizer of finalizers) {
358+ const finalizerEffect = invokePluginCallback("finalizer", definition.id, finalizer).pipe(
359+ Effect.catch((error) =>
360+ Effect.sync(() => {
361+ cleanupErrors.push(error);
362+ }),
363+ ),
364+ );
365+ yield* Scope.addFinalizer(scope, finalizerEffect);
366+ }
365367
366− const reconcileEffect = (
367− definitions: ReadonlyArray<PluginDefinition>,
368− ): Effect.Effect<PluginRuntimeSnapshot, PluginReconcileError> =>
369− Effect.gen(function* () {
370− if (disposed) {
371− return yield* new PluginRuntimeDisposedError({ operation: "reconcile" });
372− }
373−
374− const plan = yield* Effect.try({
375− try: () => planComposition(definitions),
376− catch: (error) => {
377− if (!isPluginPlanningError(error)) throw error;
378− return error;
379− },
368+ if (Exit.isFailure(activationExit)) {
369+ const failures = yield* closePlugins([plugin], false);
370+ yield* reportCleanupErrors("rollback", failures);
371+ return yield* Effect.failCause(activationExit.cause);
372+ }
373+ return plugin;
380374 });
381− const affected = affectedPluginIds(
382− current.plugins.map((plugin) => plugin.definition),
383− plan.definitions,
384− );
385− const currentById = new Map(current.plugins.map((plugin) => [plugin.definition.id, plugin]));
386− const capabilities = new Map<string, unknown>();
387− for (const plugin of current.plugins) {
388− if (affected.has(plugin.definition.id)) continue;
389− for (const [capability, service] of Object.entries(plugin.definition.provides ?? {})) {
390− capabilities.set(capability, service);
375+
376+ const reconcileEffect = (
377+ definitions: ReadonlyArray<PluginDefinition>,
378+ ): Effect.Effect<PluginRuntimeSnapshot, PluginRuntimeReconcileError> =>
379+ Effect.gen(function* () {
380+ if (disposed) {
381+ return yield* new PluginRuntimeDisposedError({ operation: "reconcile" });
391382 }
392− }
393−
394− const staged = new Map<string, LivePlugin>();
395− const candidateExit = yield* Effect.exit(
396− Effect.gen(function* () {
397− for (const definition of plan.definitions) {
398− if (!affected.has(definition.id)) continue;
399− const plugin = yield* activatePlugin(definition, capabilities);
400− staged.set(definition.id, plugin);
401− for (const [capability, service] of Object.entries(definition.provides ?? {})) {
402− capabilities.set(capability, service);
403− }
383+
384+ const plan = yield* Effect.try({
385+ try: () => planComposition(definitions),
386+ catch: (error) => {
387+ if (!isPluginPlanningError(error)) throw error;
388+ return error;
389+ },
390+ });
391+ const affected = affectedPluginIds(
392+ current.plugins.map((plugin) => plugin.definition),
393+ plan.definitions,
394+ );
395+ const currentById = new Map(
396+ current.plugins.map((plugin) => [plugin.definition.id, plugin]),
397+ );
398+ const capabilities = new Map<string, unknown>();
399+ for (const plugin of current.plugins) {
400+ if (affected.has(plugin.definition.id)) continue;
401+ for (const [capability, service] of Object.entries(plugin.definition.provides ?? {})) {
402+ capabilities.set(capability, service);
404403 }
404+ }
405405
406− const nextPlugins: Array<LivePlugin> = [];
407− for (const definition of plan.definitions) {
408− const plugin = staged.get(definition.id) ?? currentById.get(definition.id);
409− if (plugin === undefined) {
410− return yield* new PluginStagingError({ pluginId: definition.id });
406+ const staged = new Map<string, LivePlugin>();
407+ const candidateExit = yield* Effect.exit(
408+ Effect.gen(function* () {
409+ for (const definition of plan.definitions) {
410+ if (!affected.has(definition.id)) continue;
411+ const plugin = yield* activatePlugin(definition, capabilities);
412+ staged.set(definition.id, plugin);
413+ for (const [capability, service] of Object.entries(definition.provides ?? {})) {
414+ capabilities.set(capability, service);
415+ }
411416 }
412− nextPlugins.push(plugin);
413− }
414− return {
415− plugins: nextPlugins,
416− snapshot: snapshotOf(nextPlugins, plan.blocked),
417− };
418− }),
419− );
420− if (Exit.isFailure(candidateExit)) {
421− const failures = yield* closePlugins([...staged.values()], false);
422− yield* reportCleanupErrors("rollback", failures);
423− return yield* Effect.failCause(candidateExit.cause);
424− }
425−
426− const previous = current.plugins.filter((plugin) => affected.has(plugin.definition.id));
427− current = candidateExit.value;
428− for (const plugin of staged.values()) {
429− yield* reportLifecycle("activate", plugin.definition.id);
430− }
431− const failures = yield* closePlugins(previous, true);
432− yield* reportCleanupErrors("retire", failures);
433− return current.snapshot;
434− });
435417
436− const disposeEffect = (): Effect.Effect<void, PluginRuntimeCleanupError> =>
437− Effect.gen(function* () {
438− if (disposed) return;
439− disposed = true;
440− const previous = current.plugins;
441− current = { plugins: [], snapshot: emptySnapshot() };
442− const failures = [...(yield* closePlugins(previous, true))];
443− const parentScope = runtimeScope;
444− runtimeScope = undefined;
445− if (parentScope !== undefined) {
446− const closeExit = yield* Effect.exit(Scope.close(parentScope, Exit.void));
447− if (Exit.isFailure(closeExit)) {
448− failures.push({ error: Cause.squash(closeExit.cause), pluginId: "plugin-runtime" });
418+ const nextPlugins: Array<LivePlugin> = [];
419+ for (const definition of plan.definitions) {
420+ const plugin = staged.get(definition.id) ?? currentById.get(definition.id);
421+ if (plugin === undefined) {
422+ return yield* new PluginStagingError({ pluginId: definition.id });
423+ }
424+ nextPlugins.push(plugin);
425+ }
426+ return {
427+ plugins: nextPlugins,
428+ snapshot: snapshotOf(nextPlugins, plan.blocked),
429+ };
430+ }),
431+ );
432+ if (Exit.isFailure(candidateExit)) {
433+ const failures = yield* closePlugins([...staged.values()], false);
434+ yield* reportCleanupErrors("rollback", failures);
435+ return yield* Effect.failCause(candidateExit.cause);
449436 }
450− }
451− if (failures.length > 0) {
452− return yield* new PluginRuntimeCleanupError({
453− failures: failures.map(({ error, pluginId }) => ({ cause: error, pluginId })),
454− });
455− }
456− });
457437
458− const runPromiseAdapter = <Result, Failure>(
459− operation: RuntimeOperation,
460− effect: () => Effect.Effect<Result, Failure>,
461− ): Promise<Result> => {
462− const callback = callbackContext.getStore();
463− if (callback?.active === true) {
464− return Promise.reject(
465− new PluginRuntimeReentrancyError({
466− callback: callback.callback,
467− operation,
468− pluginId: callback.pluginId,
469− }),
470− );
471− }
438+ const previous = current.plugins.filter((plugin) => affected.has(plugin.definition.id));
439+ current = candidateExit.value;
440+ for (const plugin of staged.values()) {
441+ yield* reportLifecycle("activate", plugin.definition.id);
442+ }
443+ const failures = yield* closePlugins(previous, true);
444+ yield* reportCleanupErrors("retire", failures);
445+ return current.snapshot;
446+ });
447+
448+ const disposeEffect = (): Effect.Effect<void, PluginRuntimeCleanupError> =>
449+ Effect.gen(function* () {
450+ if (disposed) return;
451+ disposed = true;
452+ const previous = current.plugins;
453+ current = { plugins: [], snapshot: emptySnapshot() };
454+ const failures = [...(yield* closePlugins(previous, true))];
455+ if (failures.length > 0) {
456+ return yield* new PluginRuntimeCleanupError({
457+ failures: failures.map(({ error, pluginId }) => ({ cause: error, pluginId })),
458+ });
459+ }
460+ });
461+
462+ const runTransition = <Result, Failure>(
463+ operation: RuntimeOperation,
464+ effect: () => Effect.Effect<Result, Failure>,
465+ ): Effect.Effect<Result, Failure | PluginRuntimeReentrancyError> =>
466+ Effect.suspend<Result, Failure | PluginRuntimeReentrancyError, never>(() => {
467+ const callback = callbackContext.getStore();
468+ if (callback?.active === true) {
469+ return Effect.fail(
470+ new PluginRuntimeReentrancyError({
471+ callback: callback.callback,
472+ operation,
473+ pluginId: callback.pluginId,
474+ }),
475+ );
476+ }
477+ return transitionSemaphore.withPermits(1)(effect());
478+ });
472479
473− const result = transition.then(() => Effect.runPromise(effect()));
474− transition = result.then(
475− () => undefined,
476− () => undefined,
480+ yield* Effect.addFinalizer(() =>
481+ disposeEffect().pipe(
482+ Effect.catch((error) =>
483+ reportCleanupErrors(
484+ "retire",
485+ error.failures.map(({ cause, pluginId }) => ({ error: cause, pluginId })),
486+ ),
487+ ),
488+ ),
477489 );
478− return result;
479− };
480−
481− return {
482− reconcile: (definitions) => {
483− let desired: ReadonlyArray<PluginDefinition>;
484− try {
485− desired = snapshotDefinitions(definitions);
486− } catch (error) {
487− return Promise.reject(error);
488− }
489− return runPromiseAdapter("reconcile", () => reconcileEffect(desired));
490− },
491− snapshot: () => current.snapshot,
492− dispose: () => runPromiseAdapter("dispose", disposeEffect),
493− };
494−};
490+
491+ return {
492+ reconcile: (definitions) => {
493+ let desired: ReadonlyArray<PluginDefinition>;
494+ try {
495+ desired = snapshotDefinitions(definitions);
496+ } catch (error) {
497+ return Effect.die(error);
498+ }
499+ return runTransition("reconcile", () => reconcileEffect(desired));
500+ },
501+ snapshot: Effect.sync(() => current.snapshot),
502+ dispose: runTransition("dispose", disposeEffect),
503+ } satisfies PluginRuntime["Service"];
504+ });
505+
506+export const layer = (options: PluginRuntimeOptions = {}) =>
507+ Layer.effect(PluginRuntime, make(options));