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adaptive-expressions

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"use strict"; /** * @module adaptive-expressions */ /** * Copyright (c) Microsoft Corporation. All rights reserved. * Licensed under the MIT License. */ Object.defineProperty(exports, "__esModule", { value: true }); exports.Join = void 0; const expressionEvaluator_1 = require("../expressionEvaluator"); const expressionType_1 = require("../expressionType"); const functionUtils_1 = require("../functionUtils"); const returnType_1 = require("../returnType"); /** * Return a string that has all the items from an array, with each character separated by a delimiter. */ class Join extends expressionEvaluator_1.ExpressionEvaluator { /** * Initializes a new instance of the Join class. */ constructor() { super(expressionType_1.ExpressionType.Join, Join.evaluator, returnType_1.ReturnType.String, Join.validator); } /** * @private */ static evaluator(expression, state, options) { let value; const { args, error: childrenError } = functionUtils_1.FunctionUtils.evaluateChildren(expression, state, options); let error = childrenError; if (!error) { if (!Array.isArray(args[0])) { error = `${expression.children[0]} evaluates to ${args[0]} which is not a list.`; } else { if (args.length === 2) { value = args[0].join(args[1]); } else { if (args[0].length < 3) { value = args[0].join(args[2]); } else { const firstPart = args[0].slice(0, args[0].length - 1).join(args[1]); value = firstPart.concat(args[2], args[0][args[0].length - 1]); } } } } return { value, error }; } /** * @private */ static validator(expression) { functionUtils_1.FunctionUtils.validateOrder(expression, [returnType_1.ReturnType.String], returnType_1.ReturnType.Array, returnType_1.ReturnType.String); } } exports.Join = Join; //# sourceMappingURL=join.js.map