@agile-dev/wx-protobuf
Version:
微信小程序使用的 protobuf 协议开发工具
279 lines (232 loc) • 8.16 kB
JavaScript
/**
* Created by zhangmiao on 2018/3/12.
*/
var util = module.exports;
var roots = require("./roots");
util.LongBits = require("./longBits");
util.Long = require("./long");
util.pool = require('./pool');
util.float = require('./float');
util.asPromise = require('./asPromise');
util.EventEmitter = require('./EventEmitter');
util.path = require('./path');
util.base64 =require('./base64');
util.utf8 = require('./utf8');
util.compareFieldsById = function compareFieldsById(a, b){
return a.id - b.id;
};
util.toArray = function toArray(object) {
if (object) {
var keys = Object.keys(object),
array = new Array(keys.length),
index = 0;
while (index < keys.length)
array[index] = object[keys[index++]];
return array;
}
return [];
};
util.toObject = function toObject(array) {
var object = {},
index = 0;
while (index < array.length) {
var key = array[index++],
val = array[index++];
if (val !== undefined)
object[key] = val;
}
return object;
};
util.isString = function isString(value) {
return typeof value === "string" || value instanceof String;
};
var safePropBackslashRe = /\\/g,
safePropQuoteRe = /"/g;
/**
* Tests whether the specified name is a reserved word in JS.
* @param {string} name Name to test
* @returns {boolean} `true` if reserved, otherwise `false`
*/
util.isReserved = function isReserved(name) {
return /^(?:do|if|in|for|let|new|try|var|case|else|enum|eval|false|null|this|true|void|with|break|catch|class|const|super|throw|while|yield|delete|export|import|public|return|static|switch|typeof|default|extends|finally|package|private|continue|debugger|function|arguments|interface|protected|implements|instanceof)$/.test(name);
};
util.isObject = function isObject(value) {
return value && typeof value === "object";
};
util.Array = typeof Uint8Array !== "undefined" ? Uint8Array /* istanbul ignore next */ : Array;
util.oneOfGetter = function getOneOf(fieldNames) {
var fieldMap = {};
for (var i = 0; i < fieldNames.length; ++i)
fieldMap[fieldNames[i]] = 1;
/**
* @returns {string|undefined} Set field name, if any
* @this Object
* @ignore
*/
return function() { // eslint-disable-line consistent-return
for (var keys = Object.keys(this), i = keys.length - 1; i > -1; --i)
if (fieldMap[keys[i]] === 1 && this[keys[i]] !== undefined && this[keys[i]] !== null)
return keys[i];
};
};
util.oneOfSetter = function setOneOf(fieldNames) {
/**
* @param {string} name Field name
* @returns {undefined}
* @this Object
* @ignore
*/
return function(name) {
for (var i = 0; i < fieldNames.length; ++i)
if (fieldNames[i] !== name)
delete this[/*"_"+*/fieldNames[i]];//设置为私有属性
};
};
util.merge = function merge(dst, src, ifNotSet) { // used by converters
for (var keys = Object.keys(src), i = 0; i < keys.length; ++i)
if (dst[keys[i]] === undefined || !ifNotSet)
dst[keys[i]] = src[keys[i]];
return dst;
};
util.decorateType = function decorateType(ctor, typeName) {
/* istanbul ignore if */
if (ctor.$type) {
if (typeName && ctor.$type.name !== typeName) {
util.decorateRoot.remove(ctor.$type);
ctor.$type.name = typeName;
util.decorateRoot.add(ctor.$type);
}
return ctor.$type;
}
/* istanbul ignore next */
if (!Type)
Type = require("./type");
var type = new Type(typeName || ctor.name);
util.decorateRoot.add(type);
type.ctor = ctor; // sets up .encode, .decode etc.
Object.defineProperty(ctor, "$type", { value: type, enumerable: false });
Object.defineProperty(ctor.prototype, "$type", { value: type, enumerable: false });
return type;
};
util.emptyArray = Object.freeze ? Object.freeze([]) : /* istanbul ignore next */ []; // used on prototypes
util.emptyObject = Object.freeze ? Object.freeze({}) : /* istanbul ignore next */ {}; // used on prototypes
util.longToHash = function longToHash(value) {
return value
? util.LongBits.from(value).toHash()
: util.LongBits.zeroHash;
};
util.copy = function(obj){
if(typeof obj != 'object'){
return obj;
}
var newObj = {};
for (var attr in obj) {
newObj[attr] = obj[attr];
}
return newObj;
};
function deepCopy(obj){
if(typeof obj != 'object'){
return obj;
}
var newobj = {};
for ( var attr in obj) {
newobj[attr] = deepCopy(obj[attr]);
}
return newobj;
}
util.deepCopy = deepCopy;
util.ProtocolError =function newError(name) {
function CustomError(message, properties) {
if (!(this instanceof CustomError))
return new CustomError(message, properties);
// Error.call(this, message);
// ^ just returns a new error instance because the ctor can be called as a function
Object.defineProperty(this, "message", { get: function() { return message; } });
/* istanbul ignore next */
if (Error.captureStackTrace) // node
Error.captureStackTrace(this, CustomError);
else
Object.defineProperty(this, "stack", { value: (new Error()).stack || "" });
if (properties)
merge(this, properties);
}
(CustomError.prototype = Object.create(Error.prototype)).constructor = CustomError;
Object.defineProperty(CustomError.prototype, "name", { get: function() { return name; } });
CustomError.prototype.toString = function toString() {
return this.name + ": " + this.message;
};
return CustomError;
}
util.toJSONOptions = {
longs: String,
enums: String,
bytes: String,
json: true
};
util.Buffer = (function() {
return null;
})();
util.newBuffer = function newBuffer(sizeOrArray) {
/* istanbul ignore next */
return typeof sizeOrArray === "number"
? new util.Array(sizeOrArray)
: typeof Uint8Array === "undefined"
? sizeOrArray
: new Uint8Array(sizeOrArray);
};
util.stringToBytes =function stringToBytes( str ) {
var bytes = [];
var len, c;
len = str.length;
for(var i = 0; i < len; i++) {
c = str.charCodeAt(i);
if(c >= 0x010000 && c <= 0x10FFFF) {
bytes.push(((c >> 18) & 0x07) | 0xF0);
bytes.push(((c >> 12) & 0x3F) | 0x80);
bytes.push(((c >> 6) & 0x3F) | 0x80);
bytes.push((c & 0x3F) | 0x80);
} else if(c >= 0x000800 && c <= 0x00FFFF) {
bytes.push(((c >> 12) & 0x0F) | 0xE0);
bytes.push(((c >> 6) & 0x3F) | 0x80);
bytes.push((c & 0x3F) | 0x80);
} else if(c >= 0x000080 && c <= 0x0007FF) {
bytes.push(((c >> 6) & 0x1F) | 0xC0);
bytes.push((c & 0x3F) | 0x80);
} else {
bytes.push(c & 0xFF);
}
}
return bytes;
};
util.byteToString = function byteToString(arr) {
if(typeof arr === 'string') {
return arr;
}
var str = '',
_arr = arr;
for(var i = 0; i < _arr.length; i++) {
var one = _arr[i].toString(2),
v = one.match(/^1+?(?=0)/);
if(v && one.length == 8) {
var bytesLength = v[0].length;
var store = _arr[i].toString(2).slice(7 - bytesLength);
for(var st = 1; st < bytesLength; st++) {
store += _arr[st + i].toString(2).slice(2);
}
str += String.fromCharCode(parseInt(store, 2));
i += bytesLength - 1;
} else {
str += String.fromCharCode(_arr[i]);
}
}
return str;
}
util.isInteger = Number.isInteger || /* istanbul ignore next */ function isInteger(value) {
return typeof value === "number" && isFinite(value) && Math.floor(value) === value;
};
Object.defineProperty(util, "decorateRoot", {
get: function() {
return roots["decorated"] || (roots["decorated"] = new (require("./root"))());
}
});