cloudfunctions/ClearingRedundantFolders/node_modules/protobufjs/src/decoder.js

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"use strict";
module.exports = decoder;

var Enum    = require("./enum"),
    types   = require("./types"),
    util    = require("./util");

function missing(field) {
    return "missing required '" + field.name + "'";
}

/**
 * Generates a decoder specific to the specified message type.
 * @param {Type} mtype Message type
 * @returns {Codegen} Codegen instance
 */
function decoder(mtype) {
    /* eslint-disable no-unexpected-multiline */
    var gen = util.codegen(["r", "l"], mtype.name + "$decode")
    ("if(!(r instanceof Reader))")
        ("r=Reader.create(r)")
    ("var c=l===undefined?r.len:r.pos+l,m=new this.ctor" + (mtype.fieldsArray.filter(function(field) { return field.map; }).length ? ",k" : ""))
    ("while(r.pos<c){")
        ("var t=r.uint32()");
    if (mtype.group) gen
        ("if((t&7)===4)")
            ("break");
    gen
        ("switch(t>>>3){");

    var i = 0;
    for (; i < /* initializes */ mtype.fieldsArray.length; ++i) {
        var field = mtype._fieldsArray[i].resolve(),
            type  = field.resolvedType instanceof Enum ? "int32" : field.type,
            ref   = "m" + util.safeProp(field.name); gen
            ("case %i:", field.id);

        // Map fields
        if (field.map) { gen
                ("r.skip().pos++") // assumes id 1 + key wireType
                ("if(%s===util.emptyObject)", ref)
                    ("%s={}", ref)
                ("k=r.%s()", field.keyType)
                ("r.pos++"); // assumes id 2 + value wireType
            if (types.long[field.keyType] !== undefined) {
                if (types.basic[type] === undefined) gen
                ("%s[typeof k===\"object\"?util.longToHash(k):k]=types[%i].decode(r,r.uint32())", ref, i); // can't be groups
                else gen
                ("%s[typeof k===\"object\"?util.longToHash(k):k]=r.%s()", ref, type);
            } else {
                if (types.basic[type] === undefined) gen
                ("%s[k]=types[%i].decode(r,r.uint32())", ref, i); // can't be groups
                else gen
                ("%s[k]=r.%s()", ref, type);
            }

        // Repeated fields
        } else if (field.repeated) { gen

                ("if(!(%s&&%s.length))", ref, ref)