/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
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 (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        if (typeof b !== "function" && b !== null)
            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
import * as Json from 'jsonc-parser';
import { isNumber, equals, isBoolean, isString, isDefined } from '../utils/objects';
import { extendedRegExp } from '../utils/strings';
import { ErrorCode, Diagnostic, DiagnosticSeverity, Range } from '../jsonLanguageTypes';
import * as nls from 'vscode-nls';
var localize = nls.loadMessageBundle();
var formats = {
    'color-hex': { errorMessage: localize('colorHexFormatWarning', 'Invalid color format. Use #RGB, #RGBA, #RRGGBB or #RRGGBBAA.'), pattern: /^#([0-9A-Fa-f]{3,4}|([0-9A-Fa-f]{2}){3,4})$/ },
    'date-time': { errorMessage: localize('dateTimeFormatWarning', 'String is not a RFC3339 date-time.'), pattern: /^(\d{4})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])T([01][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9]|60)(\.[0-9]+)?(Z|(\+|-)([01][0-9]|2[0-3]):([0-5][0-9]))$/i },
    'date': { errorMessage: localize('dateFormatWarning', 'String is not a RFC3339 date.'), pattern: /^(\d{4})-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$/i },
    'time': { errorMessage: localize('timeFormatWarning', 'String is not a RFC3339 time.'), pattern: /^([01][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9]|60)(\.[0-9]+)?(Z|(\+|-)([01][0-9]|2[0-3]):([0-5][0-9]))$/i },
    'email': { errorMessage: localize('emailFormatWarning', 'String is not an e-mail address.'), pattern: /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z0-9-]+\.)+[a-zA-Z]{2,}))$/ },
    'hostname': { errorMessage: localize('hostnameFormatWarning', 'String is not a hostname.'), pattern: /^(?=.{1,253}\.?$)[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[-0-9a-z]{0,61}[0-9a-z])?)*\.?$/i },
    'ipv4': { errorMessage: localize('ipv4FormatWarning', 'String is not an IPv4 address.'), pattern: /^(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)\.){3}(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)$/ },
    'ipv6': { errorMessage: localize('ipv6FormatWarning', 'String is not an IPv6 address.'), pattern: /^((([0-9a-f]{1,4}:){7}([0-9a-f]{1,4}|:))|(([0-9a-f]{1,4}:){6}(:[0-9a-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9a-f]{1,4}:){5}(((:[0-9a-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9a-f]{1,4}:){4}(((:[0-9a-f]{1,4}){1,3})|((:[0-9a-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9a-f]{1,4}:){3}(((:[0-9a-f]{1,4}){1,4})|((:[0-9a-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9a-f]{1,4}:){2}(((:[0-9a-f]{1,4}){1,5})|((:[0-9a-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9a-f]{1,4}:){1}(((:[0-9a-f]{1,4}){1,6})|((:[0-9a-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9a-f]{1,4}){1,7})|((:[0-9a-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))$/i },
};
var ASTNodeImpl = /** @class */ (function () {
    function ASTNodeImpl(parent, offset, length) {
        if (length === void 0) { length = 0; }
        this.offset = offset;
        this.length = length;
        this.parent = parent;
    }
    Object.defineProperty(ASTNodeImpl.prototype, "children", {
        get: function () {
            return [];
        },
        enumerable: false,
        configurable: true
    });
    ASTNodeImpl.prototype.toString = function () {
        return 'type: ' + this.type + ' (' + this.offset + '/' + this.length + ')' + (this.parent ? ' parent: {' + this.parent.toString() + '}' : '');
    };
    return ASTNodeImpl;
}());
export { ASTNodeImpl };
var NullASTNodeImpl = /** @class */ (function (_super) {
    __extends(NullASTNodeImpl, _super);
    function NullASTNodeImpl(parent, offset) {
        var _this = _super.call(this, parent, offset) || this;
        _this.type = 'null';
        _this.value = null;
        return _this;
    }
    return NullASTNodeImpl;
}(ASTNodeImpl));
export { NullASTNodeImpl };
var BooleanASTNodeImpl = /** @class */ (function (_super) {
    __extends(BooleanASTNodeImpl, _super);
    function BooleanASTNodeImpl(parent, boolValue, offset) {
        var _this = _super.call(this, parent, offset) || this;
        _this.type = 'boolean';
        _this.value = boolValue;
        return _this;
    }
    return BooleanASTNodeImpl;
}(ASTNodeImpl));
export { BooleanASTNodeImpl };
var ArrayASTNodeImpl = /** @class */ (function (_super) {
    __extends(ArrayASTNodeImpl, _super);
    function ArrayASTNodeImpl(parent, offset) {
        var _this = _super.call(this, parent, offset) || this;
        _this.type = 'array';
        _this.items = [];
        return _this;
    }
    Object.defineProperty(ArrayASTNodeImpl.prototype, "children", {
        get: function () {
            return this.items;
        },
        enumerable: false,
        configurable: true
    });
    return ArrayASTNodeImpl;
}(ASTNodeImpl));
export { ArrayASTNodeImpl };
var NumberASTNodeImpl = /** @class */ (function (_super) {
    __extends(NumberASTNodeImpl, _super);
    function NumberASTNodeImpl(parent, offset) {
        var _this = _super.call(this, parent, offset) || this;
        _this.type = 'number';
        _this.isInteger = true;
        _this.value = Number.NaN;
        return _this;
    }
    return NumberASTNodeImpl;
}(ASTNodeImpl));
export { NumberASTNodeImpl };
var StringASTNodeImpl = /** @class */ (function (_super) {
    __extends(StringASTNodeImpl, _super);
    function StringASTNodeImpl(parent, offset, length) {
        var _this = _super.call(this, parent, offset, length) || this;
        _this.type = 'string';
        _this.value = '';
        return _this;
    }
    return StringASTNodeImpl;
}(ASTNodeImpl));
export { StringASTNodeImpl };
var PropertyASTNodeImpl = /** @class */ (function (_super) {
    __extends(PropertyASTNodeImpl, _super);
    function PropertyASTNodeImpl(parent, offset, keyNode) {
        var _this = _super.call(this, parent, offset) || this;
        _this.type = 'property';
        _this.colonOffset = -1;
        _this.keyNode = keyNode;
        return _this;
    }
    Object.defineProperty(PropertyASTNodeImpl.prototype, "children", {
        get: function () {
            return this.valueNode ? [this.keyNode, this.valueNode] : [this.keyNode];
        },
        enumerable: false,
        configurable: true
    });
    return PropertyASTNodeImpl;
}(ASTNodeImpl));
export { PropertyASTNodeImpl };
var ObjectASTNodeImpl = /** @class */ (function (_super) {
    __extends(ObjectASTNodeImpl, _super);
    function ObjectASTNodeImpl(parent, offset) {
        var _this = _super.call(this, parent, offset) || this;
        _this.type = 'object';
        _this.properties = [];
        return _this;
    }
    Object.defineProperty(ObjectASTNodeImpl.prototype, "children", {
        get: function () {
            return this.properties;
        },
        enumerable: false,
        configurable: true
    });
    return ObjectASTNodeImpl;
}(ASTNodeImpl));
export { ObjectASTNodeImpl };
export function asSchema(schema) {
    if (isBoolean(schema)) {
        return schema ? {} : { "not": {} };
    }
    return schema;
}
export var EnumMatch;
(function (EnumMatch) {
    EnumMatch[EnumMatch["Key"] = 0] = "Key";
    EnumMatch[EnumMatch["Enum"] = 1] = "Enum";
})(EnumMatch || (EnumMatch = {}));
var SchemaCollector = /** @class */ (function () {
    function SchemaCollector(focusOffset, exclude) {
        if (focusOffset === void 0) { focusOffset = -1; }
        this.focusOffset = focusOffset;
        this.exclude = exclude;
        this.schemas = [];
    }
    SchemaCollector.prototype.add = function (schema) {
        this.schemas.push(schema);
    };
    SchemaCollector.prototype.merge = function (other) {
        Array.prototype.push.apply(this.schemas, other.schemas);
    };
    SchemaCollector.prototype.include = function (node) {
        return (this.focusOffset === -1 || contains(node, this.focusOffset)) && (node !== this.exclude);
    };
    SchemaCollector.prototype.newSub = function () {
        return new SchemaCollector(-1, this.exclude);
    };
    return SchemaCollector;
}());
var NoOpSchemaCollector = /** @class */ (function () {
    function NoOpSchemaCollector() {
    }
    Object.defineProperty(NoOpSchemaCollector.prototype, "schemas", {
        get: function () { return []; },
        enumerable: false,
        configurable: true
    });
    NoOpSchemaCollector.prototype.add = function (schema) { };
    NoOpSchemaCollector.prototype.merge = function (other) { };
    NoOpSchemaCollector.prototype.include = function (node) { return true; };
    NoOpSchemaCollector.prototype.newSub = function () { return this; };
    NoOpSchemaCollector.instance = new NoOpSchemaCollector();
    return NoOpSchemaCollector;
}());
var ValidationResult = /** @class */ (function () {
    function ValidationResult() {
        this.problems = [];
        this.propertiesMatches = 0;
        this.propertiesValueMatches = 0;
        this.primaryValueMatches = 0;
        this.enumValueMatch = false;
        this.enumValues = undefined;
    }
    ValidationResult.prototype.hasProblems = function () {
        return !!this.problems.length;
    };
    ValidationResult.prototype.mergeAll = function (validationResults) {
        for (var _i = 0, validationResults_1 = validationResults; _i < validationResults_1.length; _i++) {
            var validationResult = validationResults_1[_i];
            this.merge(validationResult);
        }
    };
    ValidationResult.prototype.merge = function (validationResult) {
        this.problems = this.problems.concat(validationResult.problems);
    };
    ValidationResult.prototype.mergeEnumValues = function (validationResult) {
        if (!this.enumValueMatch && !validationResult.enumValueMatch && this.enumValues && validationResult.enumValues) {
            this.enumValues = this.enumValues.concat(validationResult.enumValues);
            for (var _i = 0, _a = this.problems; _i < _a.length; _i++) {
                var error = _a[_i];
                if (error.code === ErrorCode.EnumValueMismatch) {
                    error.message = localize('enumWarning', 'Value is not accepted. Valid values: {0}.', this.enumValues.map(function (v) { return JSON.stringify(v); }).join(', '));
                }
            }
        }
    };
    ValidationResult.prototype.mergePropertyMatch = function (propertyValidationResult) {
        this.merge(propertyValidationResult);
        this.propertiesMatches++;
        if (propertyValidationResult.enumValueMatch || !propertyValidationResult.hasProblems() && propertyValidationResult.propertiesMatches) {
            this.propertiesValueMatches++;
        }
        if (propertyValidationResult.enumValueMatch && propertyValidationResult.enumValues && propertyValidationResult.enumValues.length === 1) {
            this.primaryValueMatches++;
        }
    };
    ValidationResult.prototype.compare = function (other) {
        var hasProblems = this.hasProblems();
        if (hasProblems !== other.hasProblems()) {
            return hasProblems ? -1 : 1;
        }
        if (this.enumValueMatch !== other.enumValueMatch) {
            return other.enumValueMatch ? -1 : 1;
        }
        if (this.primaryValueMatches !== other.primaryValueMatches) {
            return this.primaryValueMatches - other.primaryValueMatches;
        }
        if (this.propertiesValueMatches !== other.propertiesValueMatches) {
            return this.propertiesValueMatches - other.propertiesValueMatches;
        }
        return this.propertiesMatches - other.propertiesMatches;
    };
    return ValidationResult;
}());
export { ValidationResult };
export function newJSONDocument(root, diagnostics) {
    if (diagnostics === void 0) { diagnostics = []; }
    return new JSONDocument(root, diagnostics, []);
}
export function getNodeValue(node) {
    return Json.getNodeValue(node);
}
export function getNodePath(node) {
    return Json.getNodePath(node);
}
export function contains(node, offset, includeRightBound) {
    if (includeRightBound === void 0) { includeRightBound = false; }
    return offset >= node.offset && offset < (node.offset + node.length) || includeRightBound && offset === (node.offset + node.length);
}
var JSONDocument = /** @class */ (function () {
    function JSONDocument(root, syntaxErrors, comments) {
        if (syntaxErrors === void 0) { syntaxErrors = []; }
        if (comments === void 0) { comments = []; }
        this.root = root;
        this.syntaxErrors = syntaxErrors;
        this.comments = comments;
    }
    JSONDocument.prototype.getNodeFromOffset = function (offset, includeRightBound) {
        if (includeRightBound === void 0) { includeRightBound = false; }
        if (this.root) {
            return Json.findNodeAtOffset(this.root, offset, includeRightBound);
        }
        return undefined;
    };
    JSONDocument.prototype.visit = function (visitor) {
        if (this.root) {
            var doVisit_1 = function (node) {
                var ctn = visitor(node);
                var children = node.children;
                if (Array.isArray(children)) {
                    for (var i = 0; i < children.length && ctn; i++) {
                        ctn = doVisit_1(children[i]);
                    }
                }
                return ctn;
            };
            doVisit_1(this.root);
        }
    };
    JSONDocument.prototype.validate = function (textDocument, schema, severity) {
        if (severity === void 0) { severity = DiagnosticSeverity.Warning; }
        if (this.root && schema) {
            var validationResult = new ValidationResult();
            validate(this.root, schema, validationResult, NoOpSchemaCollector.instance);
            return validationResult.problems.map(function (p) {
                var _a;
                var range = Range.create(textDocument.positionAt(p.location.offset), textDocument.positionAt(p.location.offset + p.location.length));
                return Diagnostic.create(range, p.message, (_a = p.severity) !== null && _a !== void 0 ? _a : severity, p.code);
            });
        }
        return undefined;
    };
    JSONDocument.prototype.getMatchingSchemas = function (schema, focusOffset, exclude) {
        if (focusOffset === void 0) { focusOffset = -1; }
        var matchingSchemas = new SchemaCollector(focusOffset, exclude);
        if (this.root && schema) {
            validate(this.root, schema, new ValidationResult(), matchingSchemas);
        }
        return matchingSchemas.schemas;
    };
    return JSONDocument;
}());
export { JSONDocument };
function validate(n, schema, validationResult, matchingSchemas) {
    if (!n || !matchingSchemas.include(n)) {
        return;
    }
    var node = n;
    switch (node.type) {
        case 'object':
            _validateObjectNode(node, schema, validationResult, matchingSchemas);
            break;
        case 'array':
            _validateArrayNode(node, schema, validationResult, matchingSchemas);
            break;
        case 'string':
            _validateStringNode(node, schema, validationResult, matchingSchemas);
            break;
        case 'number':
            _validateNumberNode(node, schema, validationResult, matchingSchemas);
            break;
        case 'property':
            return validate(node.valueNode, schema, validationResult, matchingSchemas);
    }
    _validateNode();
    matchingSchemas.add({ node: node, schema: schema });
    function _validateNode() {
        function matchesType(type) {
            return node.type === type || (type === 'integer' && node.type === 'number' && node.isInteger);
        }
        if (Array.isArray(schema.type)) {
            if (!schema.type.some(matchesType)) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: schema.errorMessage || localize('typeArrayMismatchWarning', 'Incorrect type. Expected one of {0}.', schema.type.join(', '))
                });
            }
        }
        else if (schema.type) {
            if (!matchesType(schema.type)) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: schema.errorMessage || localize('typeMismatchWarning', 'Incorrect type. Expected "{0}".', schema.type)
                });
            }
        }
        if (Array.isArray(schema.allOf)) {
            for (var _i = 0, _a = schema.allOf; _i < _a.length; _i++) {
                var subSchemaRef = _a[_i];
                validate(node, asSchema(subSchemaRef), validationResult, matchingSchemas);
            }
        }
        var notSchema = asSchema(schema.not);
        if (notSchema) {
            var subValidationResult = new ValidationResult();
            var subMatchingSchemas = matchingSchemas.newSub();
            validate(node, notSchema, subValidationResult, subMatchingSchemas);
            if (!subValidationResult.hasProblems()) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: localize('notSchemaWarning', "Matches a schema that is not allowed.")
                });
            }
            for (var _b = 0, _c = subMatchingSchemas.schemas; _b < _c.length; _b++) {
                var ms = _c[_b];
                ms.inverted = !ms.inverted;
                matchingSchemas.add(ms);
            }
        }
        var testAlternatives = function (alternatives, maxOneMatch) {
            var matches = [];
            // remember the best match that is used for error messages
            var bestMatch = undefined;
            for (var _i = 0, alternatives_1 = alternatives; _i < alternatives_1.length; _i++) {
                var subSchemaRef = alternatives_1[_i];
                var subSchema = asSchema(subSchemaRef);
                var subValidationResult = new ValidationResult();
                var subMatchingSchemas = matchingSchemas.newSub();
                validate(node, subSchema, subValidationResult, subMatchingSchemas);
                if (!subValidationResult.hasProblems()) {
                    matches.push(subSchema);
                }
                if (!bestMatch) {
                    bestMatch = { schema: subSchema, validationResult: subValidationResult, matchingSchemas: subMatchingSchemas };
                }
                else {
                    if (!maxOneMatch && !subValidationResult.hasProblems() && !bestMatch.validationResult.hasProblems()) {
                        // no errors, both are equally good matches
                        bestMatch.matchingSchemas.merge(subMatchingSchemas);
                        bestMatch.validationResult.propertiesMatches += subValidationResult.propertiesMatches;
                        bestMatch.validationResult.propertiesValueMatches += subValidationResult.propertiesValueMatches;
                    }
                    else {
                        var compareResult = subValidationResult.compare(bestMatch.validationResult);
                        if (compareResult > 0) {
                            // our node is the best matching so far
                            bestMatch = { schema: subSchema, validationResult: subValidationResult, matchingSchemas: subMatchingSchemas };
                        }
                        else if (compareResult === 0) {
                            // there's already a best matching but we are as good
                            bestMatch.matchingSchemas.merge(subMatchingSchemas);
                            bestMatch.validationResult.mergeEnumValues(subValidationResult);
                        }
                    }
                }
            }
            if (matches.length > 1 && maxOneMatch) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: 1 },
                    message: localize('oneOfWarning', "Matches multiple schemas when only one must validate.")
                });
            }
            if (bestMatch) {
                validationResult.merge(bestMatch.validationResult);
                validationResult.propertiesMatches += bestMatch.validationResult.propertiesMatches;
                validationResult.propertiesValueMatches += bestMatch.validationResult.propertiesValueMatches;
                matchingSchemas.merge(bestMatch.matchingSchemas);
            }
            return matches.length;
        };
        if (Array.isArray(schema.anyOf)) {
            testAlternatives(schema.anyOf, false);
        }
        if (Array.isArray(schema.oneOf)) {
            testAlternatives(schema.oneOf, true);
        }
        var testBranch = function (schema) {
            var subValidationResult = new ValidationResult();
            var subMatchingSchemas = matchingSchemas.newSub();
            validate(node, asSchema(schema), subValidationResult, subMatchingSchemas);
            validationResult.merge(subValidationResult);
            validationResult.propertiesMatches += subValidationResult.propertiesMatches;
            validationResult.propertiesValueMatches += subValidationResult.propertiesValueMatches;
            matchingSchemas.merge(subMatchingSchemas);
        };
        var testCondition = function (ifSchema, thenSchema, elseSchema) {
            var subSchema = asSchema(ifSchema);
            var subValidationResult = new ValidationResult();
            var subMatchingSchemas = matchingSchemas.newSub();
            validate(node, subSchema, subValidationResult, subMatchingSchemas);
            matchingSchemas.merge(subMatchingSchemas);
            if (!subValidationResult.hasProblems()) {
                if (thenSchema) {
                    testBranch(thenSchema);
                }
            }
            else if (elseSchema) {
                testBranch(elseSchema);
            }
        };
        var ifSchema = asSchema(schema.if);
        if (ifSchema) {
            testCondition(ifSchema, asSchema(schema.then), asSchema(schema.else));
        }
        if (Array.isArray(schema.enum)) {
            var val = getNodeValue(node);
            var enumValueMatch = false;
            for (var _d = 0, _e = schema.enum; _d < _e.length; _d++) {
                var e = _e[_d];
                if (equals(val, e)) {
                    enumValueMatch = true;
                    break;
                }
            }
            validationResult.enumValues = schema.enum;
            validationResult.enumValueMatch = enumValueMatch;
            if (!enumValueMatch) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    code: ErrorCode.EnumValueMismatch,
                    message: schema.errorMessage || localize('enumWarning', 'Value is not accepted. Valid values: {0}.', schema.enum.map(function (v) { return JSON.stringify(v); }).join(', '))
                });
            }
        }
        if (isDefined(schema.const)) {
            var val = getNodeValue(node);
            if (!equals(val, schema.const)) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    code: ErrorCode.EnumValueMismatch,
                    message: schema.errorMessage || localize('constWarning', 'Value must be {0}.', JSON.stringify(schema.const))
                });
                validationResult.enumValueMatch = false;
            }
            else {
                validationResult.enumValueMatch = true;
            }
            validationResult.enumValues = [schema.const];
        }
        if (schema.deprecationMessage && node.parent) {
            validationResult.problems.push({
                location: { offset: node.parent.offset, length: node.parent.length },
                severity: DiagnosticSeverity.Warning,
                message: schema.deprecationMessage,
                code: ErrorCode.Deprecated
            });
        }
    }
    function _validateNumberNode(node, schema, validationResult, matchingSchemas) {
        var val = node.value;
        function normalizeFloats(float) {
            var _a;
            var parts = /^(-?\d+)(?:\.(\d+))?(?:e([-+]\d+))?$/.exec(float.toString());
            return parts && {
                value: Number(parts[1] + (parts[2] || '')),
                multiplier: (((_a = parts[2]) === null || _a === void 0 ? void 0 : _a.length) || 0) - (parseInt(parts[3]) || 0)
            };
        }
        ;
        if (isNumber(schema.multipleOf)) {
            var remainder = -1;
            if (Number.isInteger(schema.multipleOf)) {
                remainder = val % schema.multipleOf;
            }
            else {
                var normMultipleOf = normalizeFloats(schema.multipleOf);
                var normValue = normalizeFloats(val);
                if (normMultipleOf && normValue) {
                    var multiplier = Math.pow(10, Math.abs(normValue.multiplier - normMultipleOf.multiplier));
                    if (normValue.multiplier < normMultipleOf.multiplier) {
                        normValue.value *= multiplier;
                    }
                    else {
                        normMultipleOf.value *= multiplier;
                    }
                    remainder = normValue.value % normMultipleOf.value;
                }
            }
            if (remainder !== 0) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: localize('multipleOfWarning', 'Value is not divisible by {0}.', schema.multipleOf)
                });
            }
        }
        function getExclusiveLimit(limit, exclusive) {
            if (isNumber(exclusive)) {
                return exclusive;
            }
            if (isBoolean(exclusive) && exclusive) {
                return limit;
            }
            return undefined;
        }
        function getLimit(limit, exclusive) {
            if (!isBoolean(exclusive) || !exclusive) {
                return limit;
            }
            return undefined;
        }
        var exclusiveMinimum = getExclusiveLimit(schema.minimum, schema.exclusiveMinimum);
        if (isNumber(exclusiveMinimum) && val <= exclusiveMinimum) {
            validationResult.problems.push({
                location: { offset: node.offset, length: node.length },
                message: localize('exclusiveMinimumWarning', 'Value is below the exclusive minimum of {0}.', exclusiveMinimum)
            });
        }
        var exclusiveMaximum = getExclusiveLimit(schema.maximum, schema.exclusiveMaximum);
        if (isNumber(exclusiveMaximum) && val >= exclusiveMaximum) {
            validationResult.problems.push({
                location: { offset: node.offset, length: node.length },
                message: localize('exclusiveMaximumWarning', 'Value is above the exclusive maximum of {0}.', exclusiveMaximum)
            });
        }
        var minimum = getLimit(schema.minimum, schema.exclusiveMinimum);
        if (isNumber(minimum) && val < minimum) {
            validationResult.problems.push({
                location: { offset: node.offset, length: node.length },
                message: localize('minimumWarning', 'Value is below the minimum of {0}.', minimum)
            });
        }
        var maximum = getLimit(schema.maximum, schema.exclusiveMaximum);
        if (isNumber(maximum) && val > maximum) {
            validationResult.problems.push({
                location: { offset: node.offset, length: node.length },
                message: localize('maximumWarning', 'Value is above the maximum of {0}.', maximum)
            });
        }
    }
    function _validateStringNode(node, schema, validationResult, matchingSchemas) {
        if (isNumber(schema.minLength) && node.value.length < schema.minLength) {
            validationResult.problems.push({
                location: { offset: node.offset, length: node.length },
                message: localize('minLengthWarning', 'String is shorter than the minimum length of {0}.', schema.minLength)
            });
        }
        if (isNumber(schema.maxLength) && node.value.length > schema.maxLength) {
            validationResult.problems.push({
                location: { offset: node.offset, length: node.length },
                message: localize('maxLengthWarning', 'String is longer than the maximum length of {0}.', schema.maxLength)
            });
        }
        if (isString(schema.pattern)) {
            var regex = extendedRegExp(schema.pattern);
            if (!(regex === null || regex === void 0 ? void 0 : regex.test(node.value))) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: schema.patternErrorMessage || schema.errorMessage || localize('patternWarning', 'String does not match the pattern of "{0}".', schema.pattern)
                });
            }
        }
        if (schema.format) {
            switch (schema.format) {
                case 'uri':
                case 'uri-reference':
                    {
                        var errorMessage = void 0;
                        if (!node.value) {
                            errorMessage = localize('uriEmpty', 'URI expected.');
                        }
                        else {
                            var match = /^(([^:/?#]+?):)?(\/\/([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/.exec(node.value);
                            if (!match) {
                                errorMessage = localize('uriMissing', 'URI is expected.');
                            }
                            else if (!match[2] && schema.format === 'uri') {
                                errorMessage = localize('uriSchemeMissing', 'URI with a scheme is expected.');
                            }
                        }
                        if (errorMessage) {
                            validationResult.problems.push({
                                location: { offset: node.offset, length: node.length },
                                message: schema.patternErrorMessage || schema.errorMessage || localize('uriFormatWarning', 'String is not a URI: {0}', errorMessage)
                            });
                        }
                    }
                    break;
                case 'color-hex':
                case 'date-time':
                case 'date':
                case 'time':
                case 'email':
                case 'hostname':
                case 'ipv4':
                case 'ipv6':
                    var format = formats[schema.format];
                    if (!node.value || !format.pattern.exec(node.value)) {
                        validationResult.problems.push({
                            location: { offset: node.offset, length: node.length },
                            message: schema.patternErrorMessage || schema.errorMessage || format.errorMessage
                        });
                    }
                default:
            }
        }
    }
    function _validateArrayNode(node, schema, validationResult, matchingSchemas) {
        if (Array.isArray(schema.items)) {
            var subSchemas = schema.items;
            for (var index = 0; index < subSchemas.length; index++) {
                var subSchemaRef = subSchemas[index];
                var subSchema = asSchema(subSchemaRef);
                var itemValidationResult = new ValidationResult();
                var item = node.items[index];
                if (item) {
                    validate(item, subSchema, itemValidationResult, matchingSchemas);
                    validationResult.mergePropertyMatch(itemValidationResult);
                }
                else if (node.items.length >= subSchemas.length) {
                    validationResult.propertiesValueMatches++;
                }
            }
            if (node.items.length > subSchemas.length) {
                if (typeof schema.additionalItems === 'object') {
                    for (var i = subSchemas.length; i < node.items.length; i++) {
                        var itemValidationResult = new ValidationResult();
                        validate(node.items[i], schema.additionalItems, itemValidationResult, matchingSchemas);
                        validationResult.mergePropertyMatch(itemValidationResult);
                    }
                }
                else if (schema.additionalItems === false) {
                    validationResult.problems.push({
                        location: { offset: node.offset, length: node.length },
                        message: localize('additionalItemsWarning', 'Array has too many items according to schema. Expected {0} or fewer.', subSchemas.length)
                    });
                }
            }
        }
        else {
            var itemSchema = asSchema(schema.items);
            if (itemSchema) {
                for (var _i = 0, _a = node.items; _i < _a.length; _i++) {
                    var item = _a[_i];
                    var itemValidationResult = new ValidationResult();
                    validate(item, itemSchema, itemValidationResult, matchingSchemas);
                    validationResult.mergePropertyMatch(itemValidationResult);
                }
            }
        }
        var containsSchema = asSchema(schema.contains);
        if (containsSchema) {
            var doesContain = node.items.some(function (item) {
                var itemValidationResult = new ValidationResult();
                validate(item, containsSchema, itemValidationResult, NoOpSchemaCollector.instance);
                return !itemValidationResult.hasProblems();
            });
            if (!doesContain) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: schema.errorMessage || localize('requiredItemMissingWarning', 'Array does not contain required item.')
                });
            }
        }
        if (isNumber(schema.minItems) && node.items.length < schema.minItems) {
            validationResult.problems.push({
                location: { offset: node.offset, length: node.length },
                message: localize('minItemsWarning', 'Array has too few items. Expected {0} or more.', schema.minItems)
            });
        }
        if (isNumber(schema.maxItems) && node.items.length > schema.maxItems) {
            validationResult.problems.push({
                location: { offset: node.offset, length: node.length },
                message: localize('maxItemsWarning', 'Array has too many items. Expected {0} or fewer.', schema.maxItems)
            });
        }
        if (schema.uniqueItems === true) {
            var values_1 = getNodeValue(node);
            var duplicates = values_1.some(function (value, index) {
                return index !== values_1.lastIndexOf(value);
            });
            if (duplicates) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: localize('uniqueItemsWarning', 'Array has duplicate items.')
                });
            }
        }
    }
    function _validateObjectNode(node, schema, validationResult, matchingSchemas) {
        var seenKeys = Object.create(null);
        var unprocessedProperties = [];
        for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
            var propertyNode = _a[_i];
            var key = propertyNode.keyNode.value;
            seenKeys[key] = propertyNode.valueNode;
            unprocessedProperties.push(key);
        }
        if (Array.isArray(schema.required)) {
            for (var _b = 0, _c = schema.required; _b < _c.length; _b++) {
                var propertyName = _c[_b];
                if (!seenKeys[propertyName]) {
                    var keyNode = node.parent && node.parent.type === 'property' && node.parent.keyNode;
                    var location = keyNode ? { offset: keyNode.offset, length: keyNode.length } : { offset: node.offset, length: 1 };
                    validationResult.problems.push({
                        location: location,
                        message: localize('MissingRequiredPropWarning', 'Missing property "{0}".', propertyName)
                    });
                }
            }
        }
        var propertyProcessed = function (prop) {
            var index = unprocessedProperties.indexOf(prop);
            while (index >= 0) {
                unprocessedProperties.splice(index, 1);
                index = unprocessedProperties.indexOf(prop);
            }
        };
        if (schema.properties) {
            for (var _d = 0, _e = Object.keys(schema.properties); _d < _e.length; _d++) {
                var propertyName = _e[_d];
                propertyProcessed(propertyName);
                var propertySchema = schema.properties[propertyName];
                var child = seenKeys[propertyName];
                if (child) {
                    if (isBoolean(propertySchema)) {
                        if (!propertySchema) {
                            var propertyNode = child.parent;
                            validationResult.problems.push({
                                location: { offset: propertyNode.keyNode.offset, length: propertyNode.keyNode.length },
                                message: schema.errorMessage || localize('DisallowedExtraPropWarning', 'Property {0} is not allowed.', propertyName)
                            });
                        }
                        else {
                            validationResult.propertiesMatches++;
                            validationResult.propertiesValueMatches++;
                        }
                    }
                    else {
                        var propertyValidationResult = new ValidationResult();
                        validate(child, propertySchema, propertyValidationResult, matchingSchemas);
                        validationResult.mergePropertyMatch(propertyValidationResult);
                    }
                }
            }
        }
        if (schema.patternProperties) {
            for (var _f = 0, _g = Object.keys(schema.patternProperties); _f < _g.length; _f++) {
                var propertyPattern = _g[_f];
                var regex = extendedRegExp(propertyPattern);
                for (var _h = 0, _j = unprocessedProperties.slice(0); _h < _j.length; _h++) {
                    var propertyName = _j[_h];
                    if (regex === null || regex === void 0 ? void 0 : regex.test(propertyName)) {
                        propertyProcessed(propertyName);
                        var child = seenKeys[propertyName];
                        if (child) {
                            var propertySchema = schema.patternProperties[propertyPattern];
                            if (isBoolean(propertySchema)) {
                                if (!propertySchema) {
                                    var propertyNode = child.parent;
                                    validationResult.problems.push({
                                        location: { offset: propertyNode.keyNode.offset, length: propertyNode.keyNode.length },
                                        message: schema.errorMessage || localize('DisallowedExtraPropWarning', 'Property {0} is not allowed.', propertyName)
                                    });
                                }
                                else {
                                    validationResult.propertiesMatches++;
                                    validationResult.propertiesValueMatches++;
                                }
                            }
                            else {
                                var propertyValidationResult = new ValidationResult();
                                validate(child, propertySchema, propertyValidationResult, matchingSchemas);
                                validationResult.mergePropertyMatch(propertyValidationResult);
                            }
                        }
                    }
                }
            }
        }
        if (typeof schema.additionalProperties === 'object') {
            for (var _k = 0, unprocessedProperties_1 = unprocessedProperties; _k < unprocessedProperties_1.length; _k++) {
                var propertyName = unprocessedProperties_1[_k];
                var child = seenKeys[propertyName];
                if (child) {
                    var propertyValidationResult = new ValidationResult();
                    validate(child, schema.additionalProperties, propertyValidationResult, matchingSchemas);
                    validationResult.mergePropertyMatch(propertyValidationResult);
                }
            }
        }
        else if (schema.additionalProperties === false) {
            if (unprocessedProperties.length > 0) {
                for (var _l = 0, unprocessedProperties_2 = unprocessedProperties; _l < unprocessedProperties_2.length; _l++) {
                    var propertyName = unprocessedProperties_2[_l];
                    var child = seenKeys[propertyName];
                    if (child) {
                        var propertyNode = child.parent;
                        validationResult.problems.push({
                            location: { offset: propertyNode.keyNode.offset, length: propertyNode.keyNode.length },
                            message: schema.errorMessage || localize('DisallowedExtraPropWarning', 'Property {0} is not allowed.', propertyName)
                        });
                    }
                }
            }
        }
        if (isNumber(schema.maxProperties)) {
            if (node.properties.length > schema.maxProperties) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: localize('MaxPropWarning', 'Object has more properties than limit of {0}.', schema.maxProperties)
                });
            }
        }
        if (isNumber(schema.minProperties)) {
            if (node.properties.length < schema.minProperties) {
                validationResult.problems.push({
                    location: { offset: node.offset, length: node.length },
                    message: localize('MinPropWarning', 'Object has fewer properties than the required number of {0}', schema.minProperties)
                });
            }
        }
        if (schema.dependencies) {
            for (var _m = 0, _o = Object.keys(schema.dependencies); _m < _o.length; _m++) {
                var key = _o[_m];
                var prop = seenKeys[key];
                if (prop) {
                    var propertyDep = schema.dependencies[key];
                    if (Array.isArray(propertyDep)) {
                        for (var _p = 0, propertyDep_1 = propertyDep; _p < propertyDep_1.length; _p++) {
                            var requiredProp = propertyDep_1[_p];
                            if (!seenKeys[requiredProp]) {
                                validationResult.problems.push({
                                    location: { offset: node.offset, length: node.length },
                                    message: localize('RequiredDependentPropWarning', 'Object is missing property {0} required by property {1}.', requiredProp, key)
                                });
                            }
                            else {
                                validationResult.propertiesValueMatches++;
                            }
                        }
                    }
                    else {
                        var propertySchema = asSchema(propertyDep);
                        if (propertySchema) {
                            var propertyValidationResult = new ValidationResult();
                            validate(node, propertySchema, propertyValidationResult, matchingSchemas);
                            validationResult.mergePropertyMatch(propertyValidationResult);
                        }
                    }
                }
            }
        }
        var propertyNames = asSchema(schema.propertyNames);
        if (propertyNames) {
            for (var _q = 0, _r = node.properties; _q < _r.length; _q++) {
                var f = _r[_q];
                var key = f.keyNode;
                if (key) {
                    validate(key, propertyNames, validationResult, NoOpSchemaCollector.instance);
                }
            }
        }
    }
}
export function parse(textDocument, config) {
    var problems = [];
    var lastProblemOffset = -1;
    var text = textDocument.getText();
    var scanner = Json.createScanner(text, false);
    var commentRanges = config && config.collectComments ? [] : undefined;
    function _scanNext() {
        while (true) {
            var token_1 = scanner.scan();
            _checkScanError();
            switch (token_1) {
                case 12 /* LineCommentTrivia */:
                case 13 /* BlockCommentTrivia */:
                    if (Array.isArray(commentRanges)) {
                        commentRanges.push(Range.create(textDocument.positionAt(scanner.getTokenOffset()), textDocument.positionAt(scanner.getTokenOffset() + scanner.getTokenLength())));
                    }
                    break;
                case 15 /* Trivia */:
                case 14 /* LineBreakTrivia */:
                    break;
                default:
                    return token_1;
            }
        }
    }
    function _accept(token) {
        if (scanner.getToken() === token) {
            _scanNext();
            return true;
        }
        return false;
    }
    function _errorAtRange(message, code, startOffset, endOffset, severity) {
        if (severity === void 0) { severity = DiagnosticSeverity.Error; }
        if (problems.length === 0 || startOffset !== lastProblemOffset) {
            var range = Range.create(textDocument.positionAt(startOffset), textDocument.positionAt(endOffset));
            problems.push(Diagnostic.create(range, message, severity, code, textDocument.languageId));
            lastProblemOffset = startOffset;
        }
    }
    function _error(message, code, node, skipUntilAfter, skipUntil) {
        if (node === void 0) { node = undefined; }
        if (skipUntilAfter === void 0) { skipUntilAfter = []; }
        if (skipUntil === void 0) { skipUntil = []; }
        var start = scanner.getTokenOffset();
        var end = scanner.getTokenOffset() + scanner.getTokenLength();
        if (start === end && start > 0) {
            start--;
            while (start > 0 && /\s/.test(text.charAt(start))) {
                start--;
            }
            end = start + 1;
        }
        _errorAtRange(message, code, start, end);
        if (node) {
            _finalize(node, false);
        }
        if (skipUntilAfter.length + skipUntil.length > 0) {
            var token_2 = scanner.getToken();
            while (token_2 !== 17 /* EOF */) {
                if (skipUntilAfter.indexOf(token_2) !== -1) {
                    _scanNext();
                    break;
                }
                else if (skipUntil.indexOf(token_2) !== -1) {
                    break;
                }
                token_2 = _scanNext();
            }
        }
        return node;
    }
    function _checkScanError() {
        switch (scanner.getTokenError()) {
            case 4 /* InvalidUnicode */:
                _error(localize('InvalidUnicode', 'Invalid unicode sequence in string.'), ErrorCode.InvalidUnicode);
                return true;
            case 5 /* InvalidEscapeCharacter */:
                _error(localize('InvalidEscapeCharacter', 'Invalid escape character in string.'), ErrorCode.InvalidEscapeCharacter);
                return true;
            case 3 /* UnexpectedEndOfNumber */:
                _error(localize('UnexpectedEndOfNumber', 'Unexpected end of number.'), ErrorCode.UnexpectedEndOfNumber);
                return true;
            case 1 /* UnexpectedEndOfComment */:
                _error(localize('UnexpectedEndOfComment', 'Unexpected end of comment.'), ErrorCode.UnexpectedEndOfComment);
                return true;
            case 2 /* UnexpectedEndOfString */:
                _error(localize('UnexpectedEndOfString', 'Unexpected end of string.'), ErrorCode.UnexpectedEndOfString);
                return true;
            case 6 /* InvalidCharacter */:
                _error(localize('InvalidCharacter', 'Invalid characters in string. Control characters must be escaped.'), ErrorCode.InvalidCharacter);
                return true;
        }
        return false;
    }
    function _finalize(node, scanNext) {
        node.length = scanner.getTokenOffset() + scanner.getTokenLength() - node.offset;
        if (scanNext) {
            _scanNext();
        }
        return node;
    }
    function _parseArray(parent) {
        if (scanner.getToken() !== 3 /* OpenBracketToken */) {
            return undefined;
        }
        var node = new ArrayASTNodeImpl(parent, scanner.getTokenOffset());
        _scanNext(); // consume OpenBracketToken
        var count = 0;
        var needsComma = false;
        while (scanner.getToken() !== 4 /* CloseBracketToken */ && scanner.getToken() !== 17 /* EOF */) {
            if (scanner.getToken() === 5 /* CommaToken */) {
                if (!needsComma) {
                    _error(localize('ValueExpected', 'Value expected'), ErrorCode.ValueExpected);
                }
                var commaOffset = scanner.getTokenOffset();
                _scanNext(); // consume comma
                if (scanner.getToken() === 4 /* CloseBracketToken */) {
                    if (needsComma) {
                        _errorAtRange(localize('TrailingComma', 'Trailing comma'), ErrorCode.TrailingComma, commaOffset, commaOffset + 1);
                    }
                    continue;
                }
            }
            else if (needsComma) {
                _error(localize('ExpectedComma', 'Expected comma'), ErrorCode.CommaExpected);
            }
            var item = _parseValue(node);
            if (!item) {
                _error(localize('PropertyExpected', 'Value expected'), ErrorCode.ValueExpected, undefined, [], [4 /* CloseBracketToken */, 5 /* CommaToken */]);
            }
            else {
                node.items.push(item);
            }
            needsComma = true;
        }
        if (scanner.getToken() !== 4 /* CloseBracketToken */) {
            return _error(localize('ExpectedCloseBracket', 'Expected comma or closing bracket'), ErrorCode.CommaOrCloseBacketExpected, node);
        }
        return _finalize(node, true);
    }
    var keyPlaceholder = new StringASTNodeImpl(undefined, 0, 0);
    function _parseProperty(parent, keysSeen) {
        var node = new PropertyASTNodeImpl(parent, scanner.getTokenOffset(), keyPlaceholder);
        var key = _parseString(node);
        if (!key) {
            if (scanner.getToken() === 16 /* Unknown */) {
                // give a more helpful error message
                _error(localize('DoubleQuotesExpected', 'Property keys must be doublequoted'), ErrorCode.Undefined);
                var keyNode = new StringASTNodeImpl(node, scanner.getTokenOffset(), scanner.getTokenLength());
                keyNode.value = scanner.getTokenValue();
                key = keyNode;
                _scanNext(); // consume Unknown
            }
            else {
                return undefined;
            }
        }
        node.keyNode = key;
        var seen = keysSeen[key.value];
        if (seen) {
            _errorAtRange(localize('DuplicateKeyWarning', "Duplicate object key"), ErrorCode.DuplicateKey, node.keyNode.offset, node.keyNode.offset + node.keyNode.length, DiagnosticSeverity.Warning);
            if (typeof seen === 'object') {
                _errorAtRange(localize('DuplicateKeyWarning', "Duplicate object key"), ErrorCode.DuplicateKey, seen.keyNode.offset, seen.keyNode.offset + seen.keyNode.length, DiagnosticSeverity.Warning);
            }
            keysSeen[key.value] = true; // if the same key is duplicate again, avoid duplicate error reporting
        }
        else {
            keysSeen[key.value] = node;
        }
        if (scanner.getToken() === 6 /* ColonToken */) {
            node.colonOffset = scanner.getTokenOffset();
            _scanNext(); // consume ColonToken
        }
        else {
            _error(localize('ColonExpected', 'Colon expected'), ErrorCode.ColonExpected);
            if (scanner.getToken() === 10 /* StringLiteral */ && textDocument.positionAt(key.offset + key.length).line < textDocument.positionAt(scanner.getTokenOffset()).line) {
                node.length = key.length;
                return node;
            }
        }
        var value = _parseValue(node);
        if (!value) {
            return _error(localize('ValueExpected', 'Value expected'), ErrorCode.ValueExpected, node, [], [2 /* CloseBraceToken */, 5 /* CommaToken */]);
        }
        node.valueNode = value;
        node.length = value.offset + value.length - node.offset;
        return node;
    }
    function _parseObject(parent) {
        if (scanner.getToken() !== 1 /* OpenBraceToken */) {
            return undefined;
        }
        var node = new ObjectASTNodeImpl(parent, scanner.getTokenOffset());
        var keysSeen = Object.create(null);
        _scanNext(); // consume OpenBraceToken
        var needsComma = false;
        while (scanner.getToken() !== 2 /* CloseBraceToken */ && scanner.getToken() !== 17 /* EOF */) {
            if (scanner.getToken() === 5 /* CommaToken */) {
                if (!needsComma) {
                    _error(localize('PropertyExpected', 'Property expected'), ErrorCode.PropertyExpected);
                }
                var commaOffset = scanner.getTokenOffset();
                _scanNext(); // consume comma
                if (scanner.getToken() === 2 /* CloseBraceToken */) {
                    if (needsComma) {
                        _errorAtRange(localize('TrailingComma', 'Trailing comma'), ErrorCode.TrailingComma, commaOffset, commaOffset + 1);
                    }
                    continue;
                }
            }
            else if (needsComma) {
                _error(localize('ExpectedComma', 'Expected comma'), ErrorCode.CommaExpected);
            }
            var property = _parseProperty(node, keysSeen);
            if (!property) {
                _error(localize('PropertyExpected', 'Property expected'), ErrorCode.PropertyExpected, undefined, [], [2 /* CloseBraceToken */, 5 /* CommaToken */]);
            }
            else {
                node.properties.push(property);
            }
            needsComma = true;
        }
        if (scanner.getToken() !== 2 /* CloseBraceToken */) {
            return _error(localize('ExpectedCloseBrace', 'Expected comma or closing brace'), ErrorCode.CommaOrCloseBraceExpected, node);
        }
        return _finalize(node, true);
    }
    function _parseString(parent) {
        if (scanner.getToken() !== 10 /* StringLiteral */) {
            return undefined;
        }
        var node = new StringASTNodeImpl(parent, scanner.getTokenOffset());
        node.value = scanner.getTokenValue();
        return _finalize(node, true);
    }
    function _parseNumber(parent) {
        if (scanner.getToken() !== 11 /* NumericLiteral */) {
            return undefined;
        }
        var node = new NumberASTNodeImpl(parent, scanner.getTokenOffset());
        if (scanner.getTokenError() === 0 /* None */) {
            var tokenValue = scanner.getTokenValue();
            try {
                var numberValue = JSON.parse(tokenValue);
                if (!isNumber(numberValue)) {
                    return _error(localize('InvalidNumberFormat', 'Invalid number format.'), ErrorCode.Undefined, node);
                }
                node.value = numberValue;
            }
            catch (e) {
                return _error(localize('InvalidNumberFormat', 'Invalid number format.'), ErrorCode.Undefined, node);
            }
            node.isInteger = tokenValue.indexOf('.') === -1;
        }
        return _finalize(node, true);
    }
    function _parseLiteral(parent) {
        var node;
        switch (scanner.getToken()) {
            case 7 /* NullKeyword */:
                return _finalize(new NullASTNodeImpl(parent, scanner.getTokenOffset()), true);
            case 8 /* TrueKeyword */:
                return _finalize(new BooleanASTNodeImpl(parent, true, scanner.getTokenOffset()), true);
            case 9 /* FalseKeyword */:
                return _finalize(new BooleanASTNodeImpl(parent, false, scanner.getTokenOffset()), true);
            default:
                return undefined;
        }
    }
    function _parseValue(parent) {
        return _parseArray(parent) || _parseObject(parent) || _parseString(parent) || _parseNumber(parent) || _parseLiteral(parent);
    }
    var _root = undefined;
    var token = _scanNext();
    if (token !== 17 /* EOF */) {
        _root = _parseValue(_root);
        if (!_root) {
            _error(localize('Invalid symbol', 'Expected a JSON object, array or literal.'), ErrorCode.Undefined);
        }
        else if (scanner.getToken() !== 17 /* EOF */) {
            _error(localize('End of file expected', 'End of file expected.'), ErrorCode.Undefined);
        }
    }
    return new JSONDocument(_root, problems, commentRanges);
}
