botbuilder-dialogs-adaptive
Version:
Rule system for the Microsoft BotBuilder dialog system.
55 lines • 1.77 kB
JavaScript
;
/**
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License.
*/
/**
* @module botbuilder-dialogs-adaptive
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.evaluateExpression = exports.replaceJsonRecursively = void 0;
const adaptive_expressions_1 = require("adaptive-expressions");
/**
* Replaces the binding paths in a JSON value with the evaluated results recursively.
*
* @param state A scope for looking up variables.
* @param unit An object.
* @returns Deep data binding result.
*/
function replaceJsonRecursively(state, unit) {
if (typeof unit === 'string') {
const { value, error } = new adaptive_expressions_1.ValueExpression(unit).tryGetValue(state);
if (!error) {
return value;
}
return unit;
}
if (Array.isArray(unit)) {
const result = [];
for (const child of unit) {
result.push(replaceJsonRecursively(state, child));
}
return result;
}
if (typeof unit === 'object') {
const result = {};
for (const key in unit) {
result[key] = replaceJsonRecursively(state, unit[key]);
}
return result;
}
return unit;
}
exports.replaceJsonRecursively = replaceJsonRecursively;
/**
* Evaluate ValueExpression according the value type.
*
* @param state Input ValueExpression
* @param valExpr A scope for looking up variables.
* @returns Deep data binding result.
*/
function evaluateExpression(state, valExpr) {
return valExpr.expressionText == null ? replaceJsonRecursively(state, valExpr.value) : valExpr.getValue(state);
}
exports.evaluateExpression = evaluateExpression;
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