| [d24f17c] | 1 | Object.defineProperty(exports, "__esModule", { value: true });
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| 2 | var helpers_js_1 = require("./helpers.js");
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| 3 | exports.JsonPatchError = helpers_js_1.PatchError;
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| 4 | exports.deepClone = helpers_js_1._deepClone;
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| 5 | /* We use a Javascript hash to store each
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| 6 | function. Each hash entry (property) uses
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| 7 | the operation identifiers specified in rfc6902.
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| 8 | In this way, we can map each patch operation
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| 9 | to its dedicated function in efficient way.
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| 10 | */
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| 11 | /* The operations applicable to an object */
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| 12 | var objOps = {
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| 13 | add: function (obj, key, document) {
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| 14 | obj[key] = this.value;
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| 15 | return { newDocument: document };
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| 16 | },
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| 17 | remove: function (obj, key, document) {
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| 18 | var removed = obj[key];
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| 19 | delete obj[key];
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| 20 | return { newDocument: document, removed: removed };
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| 21 | },
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| 22 | replace: function (obj, key, document) {
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| 23 | var removed = obj[key];
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| 24 | obj[key] = this.value;
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| 25 | return { newDocument: document, removed: removed };
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| 26 | },
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| 27 | move: function (obj, key, document) {
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| 28 | /* in case move target overwrites an existing value,
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| 29 | return the removed value, this can be taxing performance-wise,
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| 30 | and is potentially unneeded */
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| 31 | var removed = getValueByPointer(document, this.path);
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| 32 | if (removed) {
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| 33 | removed = helpers_js_1._deepClone(removed);
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| 34 | }
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| 35 | var originalValue = applyOperation(document, { op: "remove", path: this.from }).removed;
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| 36 | applyOperation(document, { op: "add", path: this.path, value: originalValue });
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| 37 | return { newDocument: document, removed: removed };
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| 38 | },
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| 39 | copy: function (obj, key, document) {
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| 40 | var valueToCopy = getValueByPointer(document, this.from);
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| 41 | // enforce copy by value so further operations don't affect source (see issue #177)
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| 42 | applyOperation(document, { op: "add", path: this.path, value: helpers_js_1._deepClone(valueToCopy) });
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| 43 | return { newDocument: document };
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| 44 | },
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| 45 | test: function (obj, key, document) {
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| 46 | return { newDocument: document, test: _areEquals(obj[key], this.value) };
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| 47 | },
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| 48 | _get: function (obj, key, document) {
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| 49 | this.value = obj[key];
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| 50 | return { newDocument: document };
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| 51 | }
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| 52 | };
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| 53 | /* The operations applicable to an array. Many are the same as for the object */
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| 54 | var arrOps = {
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| 55 | add: function (arr, i, document) {
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| 56 | if (helpers_js_1.isInteger(i)) {
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| 57 | arr.splice(i, 0, this.value);
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| 58 | }
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| 59 | else { // array props
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| 60 | arr[i] = this.value;
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| 61 | }
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| 62 | // this may be needed when using '-' in an array
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| 63 | return { newDocument: document, index: i };
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| 64 | },
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| 65 | remove: function (arr, i, document) {
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| 66 | var removedList = arr.splice(i, 1);
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| 67 | return { newDocument: document, removed: removedList[0] };
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| 68 | },
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| 69 | replace: function (arr, i, document) {
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| 70 | var removed = arr[i];
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| 71 | arr[i] = this.value;
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| 72 | return { newDocument: document, removed: removed };
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| 73 | },
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| 74 | move: objOps.move,
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| 75 | copy: objOps.copy,
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| 76 | test: objOps.test,
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| 77 | _get: objOps._get
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| 78 | };
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| 79 | /**
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| 80 | * Retrieves a value from a JSON document by a JSON pointer.
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| 81 | * Returns the value.
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| 82 | *
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| 83 | * @param document The document to get the value from
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| 84 | * @param pointer an escaped JSON pointer
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| 85 | * @return The retrieved value
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| 86 | */
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| 87 | function getValueByPointer(document, pointer) {
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| 88 | if (pointer == '') {
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| 89 | return document;
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| 90 | }
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| 91 | var getOriginalDestination = { op: "_get", path: pointer };
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| 92 | applyOperation(document, getOriginalDestination);
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| 93 | return getOriginalDestination.value;
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| 94 | }
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| 95 | exports.getValueByPointer = getValueByPointer;
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| 96 | /**
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| 97 | * Apply a single JSON Patch Operation on a JSON document.
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| 98 | * Returns the {newDocument, result} of the operation.
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| 99 | * It modifies the `document` and `operation` objects - it gets the values by reference.
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| 100 | * If you would like to avoid touching your values, clone them:
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| 101 | * `jsonpatch.applyOperation(document, jsonpatch._deepClone(operation))`.
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| 102 | *
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| 103 | * @param document The document to patch
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| 104 | * @param operation The operation to apply
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| 105 | * @param validateOperation `false` is without validation, `true` to use default jsonpatch's validation, or you can pass a `validateOperation` callback to be used for validation.
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| 106 | * @param mutateDocument Whether to mutate the original document or clone it before applying
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| 107 | * @param banPrototypeModifications Whether to ban modifications to `__proto__`, defaults to `true`.
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| 108 | * @return `{newDocument, result}` after the operation
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| 109 | */
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| 110 | function applyOperation(document, operation, validateOperation, mutateDocument, banPrototypeModifications, index) {
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| 111 | if (validateOperation === void 0) { validateOperation = false; }
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| 112 | if (mutateDocument === void 0) { mutateDocument = true; }
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| 113 | if (banPrototypeModifications === void 0) { banPrototypeModifications = true; }
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| 114 | if (index === void 0) { index = 0; }
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| 115 | if (validateOperation) {
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| 116 | if (typeof validateOperation == 'function') {
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| 117 | validateOperation(operation, 0, document, operation.path);
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| 118 | }
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| 119 | else {
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| 120 | validator(operation, 0);
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| 121 | }
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| 122 | }
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| 123 | /* ROOT OPERATIONS */
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| 124 | if (operation.path === "") {
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| 125 | var returnValue = { newDocument: document };
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| 126 | if (operation.op === 'add') {
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| 127 | returnValue.newDocument = operation.value;
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| 128 | return returnValue;
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| 129 | }
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| 130 | else if (operation.op === 'replace') {
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| 131 | returnValue.newDocument = operation.value;
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| 132 | returnValue.removed = document; //document we removed
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| 133 | return returnValue;
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| 134 | }
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| 135 | else if (operation.op === 'move' || operation.op === 'copy') { // it's a move or copy to root
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| 136 | returnValue.newDocument = getValueByPointer(document, operation.from); // get the value by json-pointer in `from` field
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| 137 | if (operation.op === 'move') { // report removed item
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| 138 | returnValue.removed = document;
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| 139 | }
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| 140 | return returnValue;
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| 141 | }
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| 142 | else if (operation.op === 'test') {
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| 143 | returnValue.test = _areEquals(document, operation.value);
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| 144 | if (returnValue.test === false) {
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| 145 | throw new exports.JsonPatchError("Test operation failed", 'TEST_OPERATION_FAILED', index, operation, document);
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| 146 | }
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| 147 | returnValue.newDocument = document;
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| 148 | return returnValue;
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| 149 | }
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| 150 | else if (operation.op === 'remove') { // a remove on root
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| 151 | returnValue.removed = document;
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| 152 | returnValue.newDocument = null;
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| 153 | return returnValue;
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| 154 | }
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| 155 | else if (operation.op === '_get') {
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| 156 | operation.value = document;
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| 157 | return returnValue;
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| 158 | }
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| 159 | else { /* bad operation */
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| 160 | if (validateOperation) {
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| 161 | throw new exports.JsonPatchError('Operation `op` property is not one of operations defined in RFC-6902', 'OPERATION_OP_INVALID', index, operation, document);
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| 162 | }
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| 163 | else {
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| 164 | return returnValue;
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| 165 | }
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| 166 | }
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| 167 | } /* END ROOT OPERATIONS */
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| 168 | else {
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| 169 | if (!mutateDocument) {
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| 170 | document = helpers_js_1._deepClone(document);
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| 171 | }
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| 172 | var path = operation.path || "";
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| 173 | var keys = path.split('/');
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| 174 | var obj = document;
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| 175 | var t = 1; //skip empty element - http://jsperf.com/to-shift-or-not-to-shift
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| 176 | var len = keys.length;
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| 177 | var existingPathFragment = undefined;
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| 178 | var key = void 0;
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| 179 | var validateFunction = void 0;
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| 180 | if (typeof validateOperation == 'function') {
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| 181 | validateFunction = validateOperation;
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| 182 | }
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| 183 | else {
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| 184 | validateFunction = validator;
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| 185 | }
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| 186 | while (true) {
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| 187 | key = keys[t];
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| 188 | if (key && key.indexOf('~') != -1) {
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| 189 | key = helpers_js_1.unescapePathComponent(key);
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| 190 | }
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| 191 | if (banPrototypeModifications &&
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| 192 | (key == '__proto__' ||
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| 193 | (key == 'prototype' && t > 0 && keys[t - 1] == 'constructor'))) {
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| 194 | throw new TypeError('JSON-Patch: modifying `__proto__` or `constructor/prototype` prop is banned for security reasons, if this was on purpose, please set `banPrototypeModifications` flag false and pass it to this function. More info in fast-json-patch README');
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| 195 | }
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| 196 | if (validateOperation) {
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| 197 | if (existingPathFragment === undefined) {
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| 198 | if (obj[key] === undefined) {
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| 199 | existingPathFragment = keys.slice(0, t).join('/');
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| 200 | }
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| 201 | else if (t == len - 1) {
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| 202 | existingPathFragment = operation.path;
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| 203 | }
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| 204 | if (existingPathFragment !== undefined) {
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| 205 | validateFunction(operation, 0, document, existingPathFragment);
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| 206 | }
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| 207 | }
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| 208 | }
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| 209 | t++;
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| 210 | if (Array.isArray(obj)) {
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| 211 | if (key === '-') {
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| 212 | key = obj.length;
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| 213 | }
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| 214 | else {
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| 215 | if (validateOperation && !helpers_js_1.isInteger(key)) {
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| 216 | throw new exports.JsonPatchError("Expected an unsigned base-10 integer value, making the new referenced value the array element with the zero-based index", "OPERATION_PATH_ILLEGAL_ARRAY_INDEX", index, operation, document);
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| 217 | } // only parse key when it's an integer for `arr.prop` to work
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| 218 | else if (helpers_js_1.isInteger(key)) {
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| 219 | key = ~~key;
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| 220 | }
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| 221 | }
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| 222 | if (t >= len) {
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| 223 | if (validateOperation && operation.op === "add" && key > obj.length) {
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| 224 | throw new exports.JsonPatchError("The specified index MUST NOT be greater than the number of elements in the array", "OPERATION_VALUE_OUT_OF_BOUNDS", index, operation, document);
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| 225 | }
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| 226 | var returnValue = arrOps[operation.op].call(operation, obj, key, document); // Apply patch
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| 227 | if (returnValue.test === false) {
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| 228 | throw new exports.JsonPatchError("Test operation failed", 'TEST_OPERATION_FAILED', index, operation, document);
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| 229 | }
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| 230 | return returnValue;
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| 231 | }
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| 232 | }
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| 233 | else {
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| 234 | if (t >= len) {
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| 235 | var returnValue = objOps[operation.op].call(operation, obj, key, document); // Apply patch
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| 236 | if (returnValue.test === false) {
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| 237 | throw new exports.JsonPatchError("Test operation failed", 'TEST_OPERATION_FAILED', index, operation, document);
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| 238 | }
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| 239 | return returnValue;
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| 240 | }
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| 241 | }
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| 242 | obj = obj[key];
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| 243 | // If we have more keys in the path, but the next value isn't a non-null object,
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| 244 | // throw an OPERATION_PATH_UNRESOLVABLE error instead of iterating again.
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| 245 | if (validateOperation && t < len && (!obj || typeof obj !== "object")) {
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| 246 | throw new exports.JsonPatchError('Cannot perform operation at the desired path', 'OPERATION_PATH_UNRESOLVABLE', index, operation, document);
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| 247 | }
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| 248 | }
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| 249 | }
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| 250 | }
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| 251 | exports.applyOperation = applyOperation;
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| 252 | /**
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| 253 | * Apply a full JSON Patch array on a JSON document.
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| 254 | * Returns the {newDocument, result} of the patch.
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| 255 | * It modifies the `document` object and `patch` - it gets the values by reference.
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| 256 | * If you would like to avoid touching your values, clone them:
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| 257 | * `jsonpatch.applyPatch(document, jsonpatch._deepClone(patch))`.
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| 258 | *
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| 259 | * @param document The document to patch
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| 260 | * @param patch The patch to apply
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| 261 | * @param validateOperation `false` is without validation, `true` to use default jsonpatch's validation, or you can pass a `validateOperation` callback to be used for validation.
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| 262 | * @param mutateDocument Whether to mutate the original document or clone it before applying
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| 263 | * @param banPrototypeModifications Whether to ban modifications to `__proto__`, defaults to `true`.
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| 264 | * @return An array of `{newDocument, result}` after the patch
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| 265 | */
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| 266 | function applyPatch(document, patch, validateOperation, mutateDocument, banPrototypeModifications) {
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| 267 | if (mutateDocument === void 0) { mutateDocument = true; }
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| 268 | if (banPrototypeModifications === void 0) { banPrototypeModifications = true; }
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| 269 | if (validateOperation) {
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| 270 | if (!Array.isArray(patch)) {
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| 271 | throw new exports.JsonPatchError('Patch sequence must be an array', 'SEQUENCE_NOT_AN_ARRAY');
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| 272 | }
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| 273 | }
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| 274 | if (!mutateDocument) {
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| 275 | document = helpers_js_1._deepClone(document);
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| 276 | }
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| 277 | var results = new Array(patch.length);
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| 278 | for (var i = 0, length_1 = patch.length; i < length_1; i++) {
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| 279 | // we don't need to pass mutateDocument argument because if it was true, we already deep cloned the object, we'll just pass `true`
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| 280 | results[i] = applyOperation(document, patch[i], validateOperation, true, banPrototypeModifications, i);
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| 281 | document = results[i].newDocument; // in case root was replaced
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| 282 | }
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| 283 | results.newDocument = document;
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| 284 | return results;
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| 285 | }
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| 286 | exports.applyPatch = applyPatch;
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| 287 | /**
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| 288 | * Apply a single JSON Patch Operation on a JSON document.
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| 289 | * Returns the updated document.
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| 290 | * Suitable as a reducer.
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| 291 | *
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| 292 | * @param document The document to patch
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| 293 | * @param operation The operation to apply
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| 294 | * @return The updated document
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| 295 | */
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| 296 | function applyReducer(document, operation, index) {
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| 297 | var operationResult = applyOperation(document, operation);
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| 298 | if (operationResult.test === false) { // failed test
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| 299 | throw new exports.JsonPatchError("Test operation failed", 'TEST_OPERATION_FAILED', index, operation, document);
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| 300 | }
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| 301 | return operationResult.newDocument;
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| 302 | }
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| 303 | exports.applyReducer = applyReducer;
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| 304 | /**
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| 305 | * Validates a single operation. Called from `jsonpatch.validate`. Throws `JsonPatchError` in case of an error.
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| 306 | * @param {object} operation - operation object (patch)
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| 307 | * @param {number} index - index of operation in the sequence
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| 308 | * @param {object} [document] - object where the operation is supposed to be applied
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| 309 | * @param {string} [existingPathFragment] - comes along with `document`
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| 310 | */
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| 311 | function validator(operation, index, document, existingPathFragment) {
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| 312 | if (typeof operation !== 'object' || operation === null || Array.isArray(operation)) {
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| 313 | throw new exports.JsonPatchError('Operation is not an object', 'OPERATION_NOT_AN_OBJECT', index, operation, document);
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| 314 | }
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| 315 | else if (!objOps[operation.op]) {
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| 316 | throw new exports.JsonPatchError('Operation `op` property is not one of operations defined in RFC-6902', 'OPERATION_OP_INVALID', index, operation, document);
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| 317 | }
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| 318 | else if (typeof operation.path !== 'string') {
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| 319 | throw new exports.JsonPatchError('Operation `path` property is not a string', 'OPERATION_PATH_INVALID', index, operation, document);
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| 320 | }
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| 321 | else if (operation.path.indexOf('/') !== 0 && operation.path.length > 0) {
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| 322 | // paths that aren't empty string should start with "/"
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| 323 | throw new exports.JsonPatchError('Operation `path` property must start with "/"', 'OPERATION_PATH_INVALID', index, operation, document);
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| 324 | }
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| 325 | else if ((operation.op === 'move' || operation.op === 'copy') && typeof operation.from !== 'string') {
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| 326 | throw new exports.JsonPatchError('Operation `from` property is not present (applicable in `move` and `copy` operations)', 'OPERATION_FROM_REQUIRED', index, operation, document);
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| 327 | }
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| 328 | else if ((operation.op === 'add' || operation.op === 'replace' || operation.op === 'test') && operation.value === undefined) {
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| 329 | throw new exports.JsonPatchError('Operation `value` property is not present (applicable in `add`, `replace` and `test` operations)', 'OPERATION_VALUE_REQUIRED', index, operation, document);
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| 330 | }
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| 331 | else if ((operation.op === 'add' || operation.op === 'replace' || operation.op === 'test') && helpers_js_1.hasUndefined(operation.value)) {
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| 332 | throw new exports.JsonPatchError('Operation `value` property is not present (applicable in `add`, `replace` and `test` operations)', 'OPERATION_VALUE_CANNOT_CONTAIN_UNDEFINED', index, operation, document);
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| 333 | }
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| 334 | else if (document) {
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| 335 | if (operation.op == "add") {
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| 336 | var pathLen = operation.path.split("/").length;
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| 337 | var existingPathLen = existingPathFragment.split("/").length;
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| 338 | if (pathLen !== existingPathLen + 1 && pathLen !== existingPathLen) {
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| 339 | throw new exports.JsonPatchError('Cannot perform an `add` operation at the desired path', 'OPERATION_PATH_CANNOT_ADD', index, operation, document);
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| 340 | }
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| 341 | }
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| 342 | else if (operation.op === 'replace' || operation.op === 'remove' || operation.op === '_get') {
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| 343 | if (operation.path !== existingPathFragment) {
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| 344 | throw new exports.JsonPatchError('Cannot perform the operation at a path that does not exist', 'OPERATION_PATH_UNRESOLVABLE', index, operation, document);
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| 345 | }
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| 346 | }
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| 347 | else if (operation.op === 'move' || operation.op === 'copy') {
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| 348 | var existingValue = { op: "_get", path: operation.from, value: undefined };
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| 349 | var error = validate([existingValue], document);
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| 350 | if (error && error.name === 'OPERATION_PATH_UNRESOLVABLE') {
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| 351 | throw new exports.JsonPatchError('Cannot perform the operation from a path that does not exist', 'OPERATION_FROM_UNRESOLVABLE', index, operation, document);
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| 352 | }
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| 353 | }
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| 354 | }
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| 355 | }
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| 356 | exports.validator = validator;
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| 357 | /**
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| 358 | * Validates a sequence of operations. If `document` parameter is provided, the sequence is additionally validated against the object document.
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| 359 | * If error is encountered, returns a JsonPatchError object
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| 360 | * @param sequence
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| 361 | * @param document
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| 362 | * @returns {JsonPatchError|undefined}
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| 363 | */
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| 364 | function validate(sequence, document, externalValidator) {
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| 365 | try {
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| 366 | if (!Array.isArray(sequence)) {
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| 367 | throw new exports.JsonPatchError('Patch sequence must be an array', 'SEQUENCE_NOT_AN_ARRAY');
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| 368 | }
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| 369 | if (document) {
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| 370 | //clone document and sequence so that we can safely try applying operations
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| 371 | applyPatch(helpers_js_1._deepClone(document), helpers_js_1._deepClone(sequence), externalValidator || true);
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| 372 | }
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| 373 | else {
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| 374 | externalValidator = externalValidator || validator;
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| 375 | for (var i = 0; i < sequence.length; i++) {
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| 376 | externalValidator(sequence[i], i, document, undefined);
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| 377 | }
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| 378 | }
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| 379 | }
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| 380 | catch (e) {
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| 381 | if (e instanceof exports.JsonPatchError) {
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| 382 | return e;
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| 383 | }
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| 384 | else {
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| 385 | throw e;
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| 386 | }
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| 387 | }
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| 388 | }
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| 389 | exports.validate = validate;
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| 390 | // based on https://github.com/epoberezkin/fast-deep-equal
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| 391 | // MIT License
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| 392 | // Copyright (c) 2017 Evgeny Poberezkin
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| 393 | // Permission is hereby granted, free of charge, to any person obtaining a copy
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| 394 | // of this software and associated documentation files (the "Software"), to deal
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| 395 | // in the Software without restriction, including without limitation the rights
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| 396 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 397 | // copies of the Software, and to permit persons to whom the Software is
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| 398 | // furnished to do so, subject to the following conditions:
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| 399 | // The above copyright notice and this permission notice shall be included in all
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| 400 | // copies or substantial portions of the Software.
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| 401 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 402 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 403 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| 404 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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| 405 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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| 406 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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| 407 | // SOFTWARE.
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| 408 | function _areEquals(a, b) {
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| 409 | if (a === b)
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| 410 | return true;
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| 411 | if (a && b && typeof a == 'object' && typeof b == 'object') {
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| 412 | var arrA = Array.isArray(a), arrB = Array.isArray(b), i, length, key;
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| 413 | if (arrA && arrB) {
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| 414 | length = a.length;
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| 415 | if (length != b.length)
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| 416 | return false;
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| 417 | for (i = length; i-- !== 0;)
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| 418 | if (!_areEquals(a[i], b[i]))
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| 419 | return false;
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| 420 | return true;
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| 421 | }
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| 422 | if (arrA != arrB)
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| 423 | return false;
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| 424 | var keys = Object.keys(a);
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| 425 | length = keys.length;
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|---|
| 426 | if (length !== Object.keys(b).length)
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| 427 | return false;
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|---|
| 428 | for (i = length; i-- !== 0;)
|
|---|
| 429 | if (!b.hasOwnProperty(keys[i]))
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| 430 | return false;
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|---|
| 431 | for (i = length; i-- !== 0;) {
|
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| 432 | key = keys[i];
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|---|
| 433 | if (!_areEquals(a[key], b[key]))
|
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| 434 | return false;
|
|---|
| 435 | }
|
|---|
| 436 | return true;
|
|---|
| 437 | }
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|---|
| 438 | return a !== a && b !== b;
|
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| 439 | }
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| 440 | exports._areEquals = _areEquals;
|
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| 441 | ;
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