json-joy
Version:
Collection of libraries for building collaborative editing apps.
81 lines (80 loc) • 2.45 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.OpExtend = void 0;
const AbstractOp_1 = require("./AbstractOp");
const json_pointer_1 = require("@jsonjoy.com/json-pointer");
const constants_1 = require("../constants");
const { isArray } = Array;
/**
* @category JSON Patch Extended
*/
class OpExtend extends AbstractOp_1.AbstractOp {
constructor(path, props, deleteNull) {
super(path);
this.props = props;
this.deleteNull = deleteNull;
}
op() {
return 'extend';
}
code() {
return constants_1.OPCODE.extend;
}
apply(doc) {
const ref = (0, json_pointer_1.find)(doc, this.path);
if ((0, json_pointer_1.isArrayReference)(ref)) {
if (ref.val !== undefined) {
ref.obj[ref.key] = this.extend(ref.val);
}
}
else if ((0, json_pointer_1.isObjectReference)(ref)) {
ref.obj[ref.key] = this.extend(ref.val);
}
else {
doc = this.extend(doc);
}
return { doc };
}
extend(value) {
if (isArray(value))
return value;
if (typeof value !== 'object')
return value;
if (!value)
return value;
for (const [key, v] of Object.entries(this.props)) {
if (key === '__proto__')
throw new Error('NO_PROTO');
if (v === null && this.deleteNull) {
delete value[key];
continue;
}
value[key] = v;
}
return value;
}
toJson(parent) {
const op = {
op: 'extend',
path: (0, json_pointer_1.formatJsonPointer)(this.path),
props: this.props,
};
if (this.deleteNull)
op.deleteNull = this.deleteNull;
return op;
}
toCompact(parent, verbose) {
const opcode = verbose ? 'extend' : constants_1.OPCODE.extend;
return this.deleteNull ? [opcode, this.path, this.props, 1] : [opcode, this.path, this.props];
}
encode(encoder, parent) {
const { deleteNull } = this;
encoder.encodeArrayHeader(deleteNull ? 4 : 3);
encoder.writer.u8(constants_1.OPCODE.extend);
encoder.encodeArray(this.path);
encoder.encodeObject(this.props);
if (deleteNull)
encoder.writer.u8(1);
}
}
exports.OpExtend = OpExtend;