HarshvardhanCn01/Voice-Assistant

1"use strict";2module.exports = encoder;3 4var Enum     = require("./enum"),5    types    = require("./types"),6    util     = require("./util");7 8/**9 * Generates a partial message type encoder.10 * @param {Codegen} gen Codegen instance11 * @param {Field} field Reflected field12 * @param {number} fieldIndex Field index13 * @param {string} ref Variable reference14 * @returns {Codegen} Codegen instance15 * @ignore16 */17function genTypePartial(gen, field, fieldIndex, ref) {18    return field.resolvedType.group19        ? gen("types[%i].encode(%s,w.uint32(%i)).uint32(%i)", fieldIndex, ref, (field.id << 3 | 3) >>> 0, (field.id << 3 | 4) >>> 0)20        : gen("types[%i].encode(%s,w.uint32(%i).fork()).ldelim()", fieldIndex, ref, (field.id << 3 | 2) >>> 0);21}22 23/**24 * Generates an encoder specific to the specified message type.25 * @param {Type} mtype Message type26 * @returns {Codegen} Codegen instance27 */28function encoder(mtype) {29    /* eslint-disable no-unexpected-multiline, block-scoped-var, no-redeclare */30    var gen = util.codegen(["m", "w"], mtype.name + "$encode")31    ("if(!w)")32        ("w=Writer.create()");33 34    var i, ref;35 36    // "when a message is serialized its known fields should be written sequentially by field number"37    var fields = /* initializes */ mtype.fieldsArray.slice().sort(util.compareFieldsById);38 39    for (var i = 0; i < fields.length; ++i) {40        var field    = fields[i].resolve(),41            index    = mtype._fieldsArray.indexOf(field),42            type     = field.resolvedType instanceof Enum ? "int32" : field.type,43            wireType = types.basic[type];44            ref      = "m" + util.safeProp(field.name);45 46        // Map fields47        if (field.map) {48            gen49    ("if(%s!=null&&Object.hasOwnProperty.call(m,%j)){", ref, field.name) // !== undefined && !== null50        ("for(var ks=Object.keys(%s),i=0;i<ks.length;++i){", ref)51            ("w.uint32(%i).fork().uint32(%i).%s(ks[i])", (field.id << 3 | 2) >>> 0, 8 | types.mapKey[field.keyType], field.keyType);52            if (wireType === undefined) gen53            ("types[%i].encode(%s[ks[i]],w.uint32(18).fork()).ldelim().ldelim()", index, ref); // can't be groups54            else gen55            (".uint32(%i).%s(%s[ks[i]]).ldelim()", 16 | wireType, type, ref);56            gen57        ("}")58    ("}");59 60            // Repeated fields61        } else if (field.repeated) { gen62    ("if(%s!=null&&%s.length){", ref, ref); // !== undefined && !== null63 64            // Packed repeated65            if (field.packed && types.packed[type] !== undefined) { gen66 67        ("w.uint32(%i).fork()", (field.id << 3 | 2) >>> 0)68        ("for(var i=0;i<%s.length;++i)", ref)69            ("w.%s(%s[i])", type, ref)70        ("w.ldelim()");71 72            // Non-packed73            } else { gen74 75        ("for(var i=0;i<%s.length;++i)", ref);76                if (wireType === undefined)77            genTypePartial(gen, field, index, ref + "[i]");78                else gen79            ("w.uint32(%i).%s(%s[i])", (field.id << 3 | wireType) >>> 0, type, ref);80 81            } gen82    ("}");83 84        // Non-repeated85        } else {86            if (field.optional) gen87    ("if(%s!=null&&Object.hasOwnProperty.call(m,%j))", ref, field.name); // !== undefined && !== null88 89            if (wireType === undefined)90        genTypePartial(gen, field, index, ref);91            else gen92        ("w.uint32(%i).%s(%s)", (field.id << 3 | wireType) >>> 0, type, ref);93 94        }95    }96 97    return gen98    ("return w");99    /* eslint-enable no-unexpected-multiline, block-scoped-var, no-redeclare */100}101