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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.StringOrValue = void 0; const constant_1 = require("../constant"); const expression_1 = require("../expression"); const expressionEvaluator_1 = require("../expressionEvaluator"); const expressionType_1 = require("../expressionType"); const functionUtils_1 = require("../functionUtils"); const returnType_1 = require("../returnType"); /** * Wrap string interpolation to get real value. * For example: stringOrValue('${1}'), would get number 1 * stringOrValue('${1} item'), would get string "1 item". */ class StringOrValue extends expressionEvaluator_1.ExpressionEvaluator { /** * Initializes a new instance of the [StringOrValue](xref:adaptive-expressions.StringOrValue) class. */ constructor() { super(expressionType_1.ExpressionType.StringOrValue, StringOrValue.evaluator, returnType_1.ReturnType.Object, functionUtils_1.FunctionUtils.validateUnaryString); } /** * @private */ static evaluator(expression, state, options) { const { value: stringInput, error: childrenError } = expression.children[0].tryEvaluate(state, options); let error = childrenError; if (typeof stringInput !== 'string') { error = 'Parameter should be a string.'; } if (!error) { const expr = expression_1.Expression.parse('`' + stringInput + '`'); if (expr.children.length === 2) { const firstChild = expr.children[0]; const secondChild = expr.children[1]; // If the Expression follows this format: // concat('', childExpression) // return the childExpression result directly. if (firstChild instanceof constant_1.Constant && firstChild.value.toString() === '' && !(secondChild instanceof constant_1.Constant)) { return secondChild.tryEvaluate(state, options); } } return expr.tryEvaluate(state, options); } return { value: undefined, error }; } } exports.StringOrValue = StringOrValue; //# sourceMappingURL=stringOrValue.js.map