botbuilder-dialogs/lib/memory/scopes/thisMemoryScope.js

A dialog stack based conversation manager for Microsoft BotBuilder.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ThisMemoryScope = void 0;
/**
 * @module botbuilder-dialogs
 */
/**
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License.
 */
const memoryScope_1 = require("./memoryScope");
const scopePath_1 = require("../scopePath");
/**
 * ThisMemoryScope maps "this" -> dc.activeDialog.state
 */
class ThisMemoryScope extends memoryScope_1.MemoryScope {
    /**
     * Initializes a new instance of the [ThisMemoryScope](xref:botbuilder-dialogs.ThisMemoryScope) class.
     */
    constructor() {
        super(scopePath_1.ScopePath.this);
    }
    /**
     * Gets the backing memory for this scope.
     *
     * @param dc The [DialogContext](xref:botbuilder-dialogs.DialogContext) object for this turn.
     * @returns The memory for the scope.
     */
    getMemory(dc) {
        return dc.activeDialog ? dc.activeDialog.state : undefined;
    }
    /**
     * Changes the backing object for the memory scope.
     *
     * @param dc The [DialogContext](xref:botbuilder-dialogs.DialogContext) object for this turn.
     * @param memory Memory object to set for the scope.
     */
    setMemory(dc, memory) {
        if (memory == undefined) {
            throw new Error('ThisMemoryScope.setMemory: undefined memory object passed in.');
        }
        if (!dc.activeDialog) {
            throw new Error('ThisMemoryScope.setMemory: no active dialog found.');
        }
        dc.activeDialog.state = memory;
    }
}
exports.ThisMemoryScope = ThisMemoryScope;
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