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Filename : util.js
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"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.DetailContext = exports.NoopContext = exports.VError = void 0;
/**
 * Error thrown by validation. Besides an informative message, it includes the path to the
 * property which triggered the failure.
 */
var VError = /** @class */ (function (_super) {
    __extends(VError, _super);
    function VError(path, message) {
        var _this = _super.call(this, message) || this;
        _this.path = path;
        // See https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#extending-built-ins-like-error-array-and-map-may-no-longer-work for info about this workaround.
        Object.setPrototypeOf(_this, VError.prototype);
        return _this;
    }
    return VError;
}(Error));
exports.VError = VError;
/**
 * Fast implementation of IContext used for first-pass validation. If that fails, we can validate
 * using DetailContext to collect error messages. That's faster for the common case when messages
 * normally pass validation.
 */
var NoopContext = /** @class */ (function () {
    function NoopContext() {
    }
    NoopContext.prototype.fail = function (relPath, message, score) {
        return false;
    };
    NoopContext.prototype.unionResolver = function () { return this; };
    NoopContext.prototype.createContext = function () { return this; };
    NoopContext.prototype.resolveUnion = function (ur) { };
    return NoopContext;
}());
exports.NoopContext = NoopContext;
/**
 * Complete implementation of IContext that collects meaningfull errors.
 */
var DetailContext = /** @class */ (function () {
    function DetailContext() {
        // Stack of property names and associated messages for reporting helpful error messages.
        this._propNames = [""];
        this._messages = [null];
        // Score is used to choose the best union member whose DetailContext to use for reporting.
        // Higher score means better match (or rather less severe mismatch).
        this._score = 0;
    }
    DetailContext.prototype.fail = function (relPath, message, score) {
        this._propNames.push(relPath);
        this._messages.push(message);
        this._score += score;
        return false;
    };
    DetailContext.prototype.unionResolver = function () {
        return new DetailUnionResolver();
    };
    DetailContext.prototype.resolveUnion = function (unionResolver) {
        var _a, _b;
        var u = unionResolver;
        var best = null;
        for (var _i = 0, _c = u.contexts; _i < _c.length; _i++) {
            var ctx = _c[_i];
            if (!best || ctx._score >= best._score) {
                best = ctx;
            }
        }
        if (best && best._score > 0) {
            (_a = this._propNames).push.apply(_a, best._propNames);
            (_b = this._messages).push.apply(_b, best._messages);
        }
    };
    DetailContext.prototype.getError = function (path) {
        var msgParts = [];
        for (var i = this._propNames.length - 1; i >= 0; i--) {
            var p = this._propNames[i];
            path += (typeof p === "number") ? "[" + p + "]" : (p ? "." + p : "");
            var m = this._messages[i];
            if (m) {
                msgParts.push(path + " " + m);
            }
        }
        return new VError(path, msgParts.join("; "));
    };
    DetailContext.prototype.getErrorDetail = function (path) {
        var details = [];
        for (var i = this._propNames.length - 1; i >= 0; i--) {
            var p = this._propNames[i];
            path += (typeof p === "number") ? "[" + p + "]" : (p ? "." + p : "");
            var message = this._messages[i];
            if (message) {
                details.push({ path: path, message: message });
            }
        }
        var detail = null;
        for (var i = details.length - 1; i >= 0; i--) {
            if (detail) {
                details[i].nested = [detail];
            }
            detail = details[i];
        }
        return detail;
    };
    return DetailContext;
}());
exports.DetailContext = DetailContext;
var DetailUnionResolver = /** @class */ (function () {
    function DetailUnionResolver() {
        this.contexts = [];
    }
    DetailUnionResolver.prototype.createContext = function () {
        var ctx = new DetailContext();
        this.contexts.push(ctx);
        return ctx;
    };
    return DetailUnionResolver;
}());