@brimdata/zealot/dist/cjs/zed/encode-stream.js

The Javascript Client for Zed Lakes

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "EncodeStream", {
    enumerable: true,
    get: ()=>EncodeStream
});
const _zed = /*#__PURE__*/ _interopRequireWildcard(require("../zed"));
const _typeValue = require("./values/type-value");
function _defineProperty(obj, key, value) {
    if (key in obj) {
        Object.defineProperty(obj, key, {
            value: value,
            enumerable: true,
            configurable: true,
            writable: true
        });
    } else {
        obj[key] = value;
    }
    return obj;
}
function _getRequireWildcardCache(nodeInterop) {
    if (typeof WeakMap !== "function") return null;
    var cacheBabelInterop = new WeakMap();
    var cacheNodeInterop = new WeakMap();
    return (_getRequireWildcardCache = function(nodeInterop) {
        return nodeInterop ? cacheNodeInterop : cacheBabelInterop;
    })(nodeInterop);
}
function _interopRequireWildcard(obj, nodeInterop) {
    if (!nodeInterop && obj && obj.__esModule) {
        return obj;
    }
    if (obj === null || typeof obj !== "object" && typeof obj !== "function") {
        return {
            default: obj
        };
    }
    var cache = _getRequireWildcardCache(nodeInterop);
    if (cache && cache.has(obj)) {
        return cache.get(obj);
    }
    var newObj = {};
    var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;
    for(var key in obj){
        if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) {
            var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null;
            if (desc && (desc.get || desc.set)) {
                Object.defineProperty(newObj, key, desc);
            } else {
                newObj[key] = obj[key];
            }
        }
    }
    newObj.default = obj;
    if (cache) {
        cache.set(obj, newObj);
    }
    return newObj;
}
class EncodeStream {
    encode(value) {
        return {
            type: this.encodeType(value.type),
            value: this.encodeValue(value)
        };
    }
    encodeType(type) {
        if (_zed.isPrimitiveType(type)) {
            return type.serialize();
        } else if (this.hasSeen(type)) {
            return {
                kind: "ref",
                id: this.getId(type)
            };
        } else {
            const zjson = type.serialize(this);
            const id = this.id++;
            this.map.set(type, id);
            return {
                id,
                ...zjson
            };
        }
    }
    encodeValue(value) {
        if (!value) return null;
        if (value instanceof _typeValue.TypeValue) {
            if (value.value === null) return null;
            return this.encodeType(value.value);
        } else {
            return value.serialize(this);
        }
    }
    hasSeen(type) {
        return this.map.has(type);
    }
    getId(type) {
        return this.map.get(type);
    }
    constructor(){
        _defineProperty(this, "id", 30);
        _defineProperty(this, "map", new Map());
    }
}