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agent host: adopt durable error response parts #332606
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87 changes: 87 additions & 0 deletions
87
src/vs/platform/agentHost/common/state/legacyProtocolCompatibility.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,87 @@ | ||
| /*--------------------------------------------------------------------------------------------- | ||
| * Copyright (c) Microsoft Corporation. All rights reserved. | ||
| * Licensed under the MIT License. See License.txt in the project root for license information. | ||
| *--------------------------------------------------------------------------------------------*/ | ||
|
|
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| import { hasKey } from '../../../../base/common/types.js'; | ||
| import { ActionType, type ActionEnvelope, type ChatErrorAction, type StateAction } from './protocol/actions.js'; | ||
| import { ResponsePartKind, TurnState, type ChatState, type ErrorInfo, type Turn } from './protocol/state.js'; | ||
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| interface ILegacyChatErrorAction extends Omit<ChatErrorAction, 'part'> { | ||
| readonly error: ErrorInfo; | ||
| } | ||
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| type CompatibleTurn = Turn | (Turn & { readonly error: ErrorInfo }); | ||
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| type CompatibleActionEnvelope = Omit<ActionEnvelope, 'action'> & { | ||
| readonly action: StateAction | ILegacyChatErrorAction; | ||
| }; | ||
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| /** | ||
| * Reads the top-level error field emitted by AHP hosts before durable error | ||
| * response parts were introduced. | ||
| */ | ||
| export function readLegacyTurnError(turn: CompatibleTurn): ErrorInfo | undefined { | ||
| if (!hasKey(turn, { error: true })) { | ||
| return undefined; | ||
| } | ||
| return turn.error; | ||
| } | ||
|
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| /** | ||
| * Moves a legacy completed-turn error into its durable response-part position. | ||
| */ | ||
| export function normalizeLegacyTurnError(turn: CompatibleTurn): Turn { | ||
| if (turn.state !== TurnState.Error || !hasKey(turn, { error: true })) { | ||
| return turn; | ||
| } | ||
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| const { error, ...normalizedTurn } = turn; | ||
| const finalPart = turn.responseParts[turn.responseParts.length - 1]; | ||
| return { | ||
| ...normalizedTurn, | ||
| responseParts: finalPart?.kind === ResponsePartKind.Error | ||
| ? turn.responseParts | ||
| : [...turn.responseParts, { kind: ResponsePartKind.Error, error }], | ||
| }; | ||
| } | ||
|
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| /** | ||
| * Normalizes legacy completed-turn errors in a chat snapshot. | ||
| */ | ||
| export function normalizeLegacyChatStateErrors(state: ChatState): ChatState { | ||
| const turns = state.turns.map(normalizeLegacyTurnError); | ||
| return turns.some((turn, index) => turn !== state.turns[index]) | ||
| ? { ...state, turns } | ||
| : state; | ||
| } | ||
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| /** | ||
| * Normalizes legacy error payloads before a server action reaches reducers or | ||
| * action observers. | ||
| */ | ||
| export function normalizeLegacyActionEnvelope(envelope: CompatibleActionEnvelope): ActionEnvelope { | ||
| const action = envelope.action; | ||
| switch (action.type) { | ||
| case ActionType.ChatError: | ||
| if (hasKey(action, { error: true })) { | ||
| const { error, ...normalizedAction } = action; | ||
| return { | ||
| ...envelope, | ||
| action: { | ||
| ...normalizedAction, | ||
| part: { kind: ResponsePartKind.Error, error }, | ||
| }, | ||
| }; | ||
| } | ||
| return { ...envelope, action }; | ||
| case ActionType.ChatTurnsLoaded: { | ||
| const turns = action.turns.map(normalizeLegacyTurnError); | ||
| return turns.some((turn, index) => turn !== action.turns[index]) | ||
| ? { ...envelope, action: { ...action, turns } } | ||
| : { ...envelope, action }; | ||
| } | ||
| default: | ||
| return { ...envelope, action }; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| f770e26b | ||
| b4016c0e |
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