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index.js
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index.js
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"use strict";
var $protobuf = require("../..");
module.exports = exports = $protobuf.descriptor = $protobuf.Root.fromJSON(require("../../google/protobuf/descriptor.json")).lookup(".google.protobuf");
var Namespace = $protobuf.Namespace,
Root = $protobuf.Root,
Enum = $protobuf.Enum,
Type = $protobuf.Type,
Field = $protobuf.Field,
MapField = $protobuf.MapField,
OneOf = $protobuf.OneOf,
Service = $protobuf.Service,
Method = $protobuf.Method;
// --- Root ---
/**
* Properties of a FileDescriptorSet message.
* @interface IFileDescriptorSet
* @property {IFileDescriptorProto[]} file Files
*/
/**
* Properties of a FileDescriptorProto message.
* @interface IFileDescriptorProto
* @property {string} [name] File name
* @property {string} [package] Package
* @property {*} [dependency] Not supported
* @property {*} [publicDependency] Not supported
* @property {*} [weakDependency] Not supported
* @property {IDescriptorProto[]} [messageType] Nested message types
* @property {IEnumDescriptorProto[]} [enumType] Nested enums
* @property {IServiceDescriptorProto[]} [service] Nested services
* @property {IFieldDescriptorProto[]} [extension] Nested extension fields
* @property {IFileOptions} [options] Options
* @property {*} [sourceCodeInfo] Not supported
* @property {string} [syntax="proto2"] Syntax
*/
/**
* Properties of a FileOptions message.
* @interface IFileOptions
* @property {string} [javaPackage]
* @property {string} [javaOuterClassname]
* @property {boolean} [javaMultipleFiles]
* @property {boolean} [javaGenerateEqualsAndHash]
* @property {boolean} [javaStringCheckUtf8]
* @property {IFileOptionsOptimizeMode} [optimizeFor=1]
* @property {string} [goPackage]
* @property {boolean} [ccGenericServices]
* @property {boolean} [javaGenericServices]
* @property {boolean} [pyGenericServices]
* @property {boolean} [deprecated]
* @property {boolean} [ccEnableArenas]
* @property {string} [objcClassPrefix]
* @property {string} [csharpNamespace]
*/
/**
* Values of he FileOptions.OptimizeMode enum.
* @typedef IFileOptionsOptimizeMode
* @type {number}
* @property {number} SPEED=1
* @property {number} CODE_SIZE=2
* @property {number} LITE_RUNTIME=3
*/
/**
* Creates a root from a descriptor set.
* @param {IFileDescriptorSet|Reader|Uint8Array} descriptor Descriptor
* @returns {Root} Root instance
*/
Root.fromDescriptor = function fromDescriptor(descriptor) {
// Decode the descriptor message if specified as a buffer:
if (typeof descriptor.length === "number")
descriptor = exports.FileDescriptorSet.decode(descriptor);
var root = new Root();
if (descriptor.file) {
var fileDescriptor,
filePackage;
for (var j = 0, i; j < descriptor.file.length; ++j) {
filePackage = root;
if ((fileDescriptor = descriptor.file[j])["package"] && fileDescriptor["package"].length)
filePackage = root.define(fileDescriptor["package"]);
if (fileDescriptor.name && fileDescriptor.name.length)
root.files.push(filePackage.filename = fileDescriptor.name);
if (fileDescriptor.messageType)
for (i = 0; i < fileDescriptor.messageType.length; ++i)
filePackage.add(Type.fromDescriptor(fileDescriptor.messageType[i], fileDescriptor.syntax));
if (fileDescriptor.enumType)
for (i = 0; i < fileDescriptor.enumType.length; ++i)
filePackage.add(Enum.fromDescriptor(fileDescriptor.enumType[i]));
if (fileDescriptor.extension)
for (i = 0; i < fileDescriptor.extension.length; ++i)
filePackage.add(Field.fromDescriptor(fileDescriptor.extension[i]));
if (fileDescriptor.service)
for (i = 0; i < fileDescriptor.service.length; ++i)
filePackage.add(Service.fromDescriptor(fileDescriptor.service[i]));
var opts = fromDescriptorOptions(fileDescriptor.options, exports.FileOptions);
if (opts) {
var ks = Object.keys(opts);
for (i = 0; i < ks.length; ++i)
filePackage.setOption(ks[i], opts[ks[i]]);
}
}
}
return root;
};
/**
* Converts a root to a descriptor set.
* @returns {Message<IFileDescriptorSet>} Descriptor
* @param {string} [syntax="proto2"] Syntax
*/
Root.prototype.toDescriptor = function toDescriptor(syntax) {
var set = exports.FileDescriptorSet.create();
Root_toDescriptorRecursive(this, set.file, syntax);
return set;
};
// Traverses a namespace and assembles the descriptor set
function Root_toDescriptorRecursive(ns, files, syntax) {
// Create a new file
var file = exports.FileDescriptorProto.create({ name: ns.filename || (ns.fullName.substring(1).replace(/\./g, "_") || "root") + ".proto" });
if (syntax)
file.syntax = syntax;
if (!(ns instanceof Root))
file["package"] = ns.fullName.substring(1);
// Add nested types
for (var i = 0, nested; i < ns.nestedArray.length; ++i)
if ((nested = ns._nestedArray[i]) instanceof Type)
file.messageType.push(nested.toDescriptor(syntax));
else if (nested instanceof Enum)
file.enumType.push(nested.toDescriptor());
else if (nested instanceof Field)
file.extension.push(nested.toDescriptor(syntax));
else if (nested instanceof Service)
file.service.push(nested.toDescriptor());
else if (nested instanceof /* plain */ Namespace)
Root_toDescriptorRecursive(nested, files, syntax); // requires new file
// Keep package-level options
file.options = toDescriptorOptions(ns.options, exports.FileOptions);
// And keep the file only if there is at least one nested object
if (file.messageType.length + file.enumType.length + file.extension.length + file.service.length)
files.push(file);
}
// --- Type ---
/**
* Properties of a DescriptorProto message.
* @interface IDescriptorProto
* @property {string} [name] Message type name
* @property {IFieldDescriptorProto[]} [field] Fields
* @property {IFieldDescriptorProto[]} [extension] Extension fields
* @property {IDescriptorProto[]} [nestedType] Nested message types
* @property {IEnumDescriptorProto[]} [enumType] Nested enums
* @property {IDescriptorProtoExtensionRange[]} [extensionRange] Extension ranges
* @property {IOneofDescriptorProto[]} [oneofDecl] Oneofs
* @property {IMessageOptions} [options] Not supported
* @property {IDescriptorProtoReservedRange[]} [reservedRange] Reserved ranges
* @property {string[]} [reservedName] Reserved names
*/
/**
* Properties of a MessageOptions message.
* @interface IMessageOptions
* @property {boolean} [mapEntry=false] Whether this message is a map entry
*/
/**
* Properties of an ExtensionRange message.
* @interface IDescriptorProtoExtensionRange
* @property {number} [start] Start field id
* @property {number} [end] End field id
*/
/**
* Properties of a ReservedRange message.
* @interface IDescriptorProtoReservedRange
* @property {number} [start] Start field id
* @property {number} [end] End field id
*/
var unnamedMessageIndex = 0;
/**
* Creates a type from a descriptor.
* @param {IDescriptorProto|Reader|Uint8Array} descriptor Descriptor
* @param {string} [syntax="proto2"] Syntax
* @returns {Type} Type instance
*/
Type.fromDescriptor = function fromDescriptor(descriptor, syntax) {
// Decode the descriptor message if specified as a buffer:
if (typeof descriptor.length === "number")
descriptor = exports.DescriptorProto.decode(descriptor);
// Create the message type
var type = new Type(descriptor.name.length ? descriptor.name : "Type" + unnamedMessageIndex++, fromDescriptorOptions(descriptor.options, exports.MessageOptions)),
i;
/* Oneofs */ if (descriptor.oneofDecl)
for (i = 0; i < descriptor.oneofDecl.length; ++i)
type.add(OneOf.fromDescriptor(descriptor.oneofDecl[i]));
/* Fields */ if (descriptor.field)
for (i = 0; i < descriptor.field.length; ++i) {
var field = Field.fromDescriptor(descriptor.field[i], syntax);
type.add(field);
if (descriptor.field[i].hasOwnProperty("oneofIndex")) // eslint-disable-line no-prototype-builtins
type.oneofsArray[descriptor.field[i].oneofIndex].add(field);
}
/* Extension fields */ if (descriptor.extension)
for (i = 0; i < descriptor.extension.length; ++i)
type.add(Field.fromDescriptor(descriptor.extension[i], syntax));
/* Nested types */ if (descriptor.nestedType)
for (i = 0; i < descriptor.nestedType.length; ++i) {
type.add(Type.fromDescriptor(descriptor.nestedType[i], syntax));
if (descriptor.nestedType[i].options && descriptor.nestedType[i].options.mapEntry)
type.setOption("map_entry", true);
}
/* Nested enums */ if (descriptor.enumType)
for (i = 0; i < descriptor.enumType.length; ++i)
type.add(Enum.fromDescriptor(descriptor.enumType[i]));
/* Extension ranges */ if (descriptor.extensionRange && descriptor.extensionRange.length) {
type.extensions = [];
for (i = 0; i < descriptor.extensionRange.length; ++i)
type.extensions.push([ descriptor.extensionRange[i].start, descriptor.extensionRange[i].end ]);
}
/* Reserved... */ if (descriptor.reservedRange && descriptor.reservedRange.length || descriptor.reservedName && descriptor.reservedName.length) {
type.reserved = [];
/* Ranges */ if (descriptor.reservedRange)
for (i = 0; i < descriptor.reservedRange.length; ++i)
type.reserved.push([ descriptor.reservedRange[i].start, descriptor.reservedRange[i].end ]);
/* Names */ if (descriptor.reservedName)
for (i = 0; i < descriptor.reservedName.length; ++i)
type.reserved.push(descriptor.reservedName[i]);
}
return type;
};
/**
* Converts a type to a descriptor.
* @returns {Message<IDescriptorProto>} Descriptor
* @param {string} [syntax="proto2"] Syntax
*/
Type.prototype.toDescriptor = function toDescriptor(syntax) {
var descriptor = exports.DescriptorProto.create({ name: this.name }),
i;
/* Fields */ for (i = 0; i < this.fieldsArray.length; ++i) {
var fieldDescriptor;
descriptor.field.push(fieldDescriptor = this._fieldsArray[i].toDescriptor(syntax));
if (this._fieldsArray[i] instanceof MapField) { // map fields are repeated FieldNameEntry
var keyType = toDescriptorType(this._fieldsArray[i].keyType, this._fieldsArray[i].resolvedKeyType),
valueType = toDescriptorType(this._fieldsArray[i].type, this._fieldsArray[i].resolvedType),
valueTypeName = valueType === /* type */ 11 || valueType === /* enum */ 14
? this._fieldsArray[i].resolvedType && shortname(this.parent, this._fieldsArray[i].resolvedType) || this._fieldsArray[i].type
: undefined;
descriptor.nestedType.push(exports.DescriptorProto.create({
name: fieldDescriptor.typeName,
field: [
exports.FieldDescriptorProto.create({ name: "key", number: 1, label: 1, type: keyType }), // can't reference a type or enum
exports.FieldDescriptorProto.create({ name: "value", number: 2, label: 1, type: valueType, typeName: valueTypeName })
],
options: exports.MessageOptions.create({ mapEntry: true })
}));
}
}
/* Oneofs */ for (i = 0; i < this.oneofsArray.length; ++i)
descriptor.oneofDecl.push(this._oneofsArray[i].toDescriptor());
/* Nested... */ for (i = 0; i < this.nestedArray.length; ++i) {
/* Extension fields */ if (this._nestedArray[i] instanceof Field)
descriptor.field.push(this._nestedArray[i].toDescriptor(syntax));
/* Types */ else if (this._nestedArray[i] instanceof Type)
descriptor.nestedType.push(this._nestedArray[i].toDescriptor(syntax));
/* Enums */ else if (this._nestedArray[i] instanceof Enum)
descriptor.enumType.push(this._nestedArray[i].toDescriptor());
// plain nested namespaces become packages instead in Root#toDescriptor
}
/* Extension ranges */ if (this.extensions)
for (i = 0; i < this.extensions.length; ++i)
descriptor.extensionRange.push(exports.DescriptorProto.ExtensionRange.create({ start: this.extensions[i][0], end: this.extensions[i][1] }));
/* Reserved... */ if (this.reserved)
for (i = 0; i < this.reserved.length; ++i)
/* Names */ if (typeof this.reserved[i] === "string")
descriptor.reservedName.push(this.reserved[i]);
/* Ranges */ else
descriptor.reservedRange.push(exports.DescriptorProto.ReservedRange.create({ start: this.reserved[i][0], end: this.reserved[i][1] }));
descriptor.options = toDescriptorOptions(this.options, exports.MessageOptions);
return descriptor;
};
// --- Field ---
/**
* Properties of a FieldDescriptorProto message.
* @interface IFieldDescriptorProto
* @property {string} [name] Field name
* @property {number} [number] Field id
* @property {IFieldDescriptorProtoLabel} [label] Field rule
* @property {IFieldDescriptorProtoType} [type] Field basic type
* @property {string} [typeName] Field type name
* @property {string} [extendee] Extended type name
* @property {string} [defaultValue] Literal default value
* @property {number} [oneofIndex] Oneof index if part of a oneof
* @property {*} [jsonName] Not supported
* @property {IFieldOptions} [options] Field options
*/
/**
* Values of the FieldDescriptorProto.Label enum.
* @typedef IFieldDescriptorProtoLabel
* @type {number}
* @property {number} LABEL_OPTIONAL=1
* @property {number} LABEL_REQUIRED=2
* @property {number} LABEL_REPEATED=3
*/
/**
* Values of the FieldDescriptorProto.Type enum.
* @typedef IFieldDescriptorProtoType
* @type {number}
* @property {number} TYPE_DOUBLE=1
* @property {number} TYPE_FLOAT=2
* @property {number} TYPE_INT64=3
* @property {number} TYPE_UINT64=4
* @property {number} TYPE_INT32=5
* @property {number} TYPE_FIXED64=6
* @property {number} TYPE_FIXED32=7
* @property {number} TYPE_BOOL=8
* @property {number} TYPE_STRING=9
* @property {number} TYPE_GROUP=10
* @property {number} TYPE_MESSAGE=11
* @property {number} TYPE_BYTES=12
* @property {number} TYPE_UINT32=13
* @property {number} TYPE_ENUM=14
* @property {number} TYPE_SFIXED32=15
* @property {number} TYPE_SFIXED64=16
* @property {number} TYPE_SINT32=17
* @property {number} TYPE_SINT64=18
*/
/**
* Properties of a FieldOptions message.
* @interface IFieldOptions
* @property {boolean} [packed] Whether packed or not (defaults to `false` for proto2 and `true` for proto3)
* @property {IFieldOptionsJSType} [jstype] JavaScript value type (not used by protobuf.js)
*/
/**
* Values of the FieldOptions.JSType enum.
* @typedef IFieldOptionsJSType
* @type {number}
* @property {number} JS_NORMAL=0
* @property {number} JS_STRING=1
* @property {number} JS_NUMBER=2
*/
// copied here from parse.js
var numberRe = /^(?![eE])[0-9]*(?:\.[0-9]*)?(?:[eE][+-]?[0-9]+)?$/;
/**
* Creates a field from a descriptor.
* @param {IFieldDescriptorProto|Reader|Uint8Array} descriptor Descriptor
* @param {string} [syntax="proto2"] Syntax
* @returns {Field} Field instance
*/
Field.fromDescriptor = function fromDescriptor(descriptor, syntax) {
// Decode the descriptor message if specified as a buffer:
if (typeof descriptor.length === "number")
descriptor = exports.DescriptorProto.decode(descriptor);
if (typeof descriptor.number !== "number")
throw Error("missing field id");
// Rewire field type
var fieldType;
if (descriptor.typeName && descriptor.typeName.length)
fieldType = descriptor.typeName;
else
fieldType = fromDescriptorType(descriptor.type);
// Rewire field rule
var fieldRule;
switch (descriptor.label) {
// 0 is reserved for errors
case 1: fieldRule = undefined; break;
case 2: fieldRule = "required"; break;
case 3: fieldRule = "repeated"; break;
default: throw Error("illegal label: " + descriptor.label);
}
var extendee = descriptor.extendee;
if (descriptor.extendee !== undefined) {
extendee = extendee.length ? extendee : undefined;
}
var field = new Field(
descriptor.name.length ? descriptor.name : "field" + descriptor.number,
descriptor.number,
fieldType,
fieldRule,
extendee
);
field.options = fromDescriptorOptions(descriptor.options, exports.FieldOptions);
if (descriptor.defaultValue && descriptor.defaultValue.length) {
var defaultValue = descriptor.defaultValue;
switch (defaultValue) {
case "true": case "TRUE":
defaultValue = true;
break;
case "false": case "FALSE":
defaultValue = false;
break;
default:
var match = numberRe.exec(defaultValue);
if (match)
defaultValue = parseInt(defaultValue); // eslint-disable-line radix
break;
}
field.setOption("default", defaultValue);
}
if (packableDescriptorType(descriptor.type)) {
if (syntax === "proto3") { // defaults to packed=true (internal preset is packed=true)
if (descriptor.options && !descriptor.options.packed)
field.setOption("packed", false);
} else if (!(descriptor.options && descriptor.options.packed)) // defaults to packed=false
field.setOption("packed", false);
}
return field;
};
/**
* Converts a field to a descriptor.
* @returns {Message<IFieldDescriptorProto>} Descriptor
* @param {string} [syntax="proto2"] Syntax
*/
Field.prototype.toDescriptor = function toDescriptor(syntax) {
var descriptor = exports.FieldDescriptorProto.create({ name: this.name, number: this.id });
if (this.map) {
descriptor.type = 11; // message
descriptor.typeName = $protobuf.util.ucFirst(this.name); // fieldName -> FieldNameEntry (built in Type#toDescriptor)
descriptor.label = 3; // repeated
} else {
// Rewire field type
switch (descriptor.type = toDescriptorType(this.type, this.resolve().resolvedType)) {
case 10: // group
case 11: // type
case 14: // enum
descriptor.typeName = this.resolvedType ? shortname(this.parent, this.resolvedType) : this.type;
break;
}
// Rewire field rule
switch (this.rule) {
case "repeated": descriptor.label = 3; break;
case "required": descriptor.label = 2; break;
default: descriptor.label = 1; break;
}
}
// Handle extension field
descriptor.extendee = this.extensionField ? this.extensionField.parent.fullName : this.extend;
// Handle part of oneof
if (this.partOf)
if ((descriptor.oneofIndex = this.parent.oneofsArray.indexOf(this.partOf)) < 0)
throw Error("missing oneof");
if (this.options) {
descriptor.options = toDescriptorOptions(this.options, exports.FieldOptions);
if (this.options["default"] != null)
descriptor.defaultValue = String(this.options["default"]);
}
if (syntax === "proto3") { // defaults to packed=true
if (!this.packed)
(descriptor.options || (descriptor.options = exports.FieldOptions.create())).packed = false;
} else if (this.packed) // defaults to packed=false
(descriptor.options || (descriptor.options = exports.FieldOptions.create())).packed = true;
return descriptor;
};
// --- Enum ---
/**
* Properties of an EnumDescriptorProto message.
* @interface IEnumDescriptorProto
* @property {string} [name] Enum name
* @property {IEnumValueDescriptorProto[]} [value] Enum values
* @property {IEnumOptions} [options] Enum options
*/
/**
* Properties of an EnumValueDescriptorProto message.
* @interface IEnumValueDescriptorProto
* @property {string} [name] Name
* @property {number} [number] Value
* @property {*} [options] Not supported
*/
/**
* Properties of an EnumOptions message.
* @interface IEnumOptions
* @property {boolean} [allowAlias] Whether aliases are allowed
* @property {boolean} [deprecated]
*/
var unnamedEnumIndex = 0;
/**
* Creates an enum from a descriptor.
* @param {IEnumDescriptorProto|Reader|Uint8Array} descriptor Descriptor
* @returns {Enum} Enum instance
*/
Enum.fromDescriptor = function fromDescriptor(descriptor) {
// Decode the descriptor message if specified as a buffer:
if (typeof descriptor.length === "number")
descriptor = exports.EnumDescriptorProto.decode(descriptor);
// Construct values object
var values = {};
if (descriptor.value)
for (var i = 0; i < descriptor.value.length; ++i) {
var name = descriptor.value[i].name,
value = descriptor.value[i].number || 0;
values[name && name.length ? name : "NAME" + value] = value;
}
return new Enum(
descriptor.name && descriptor.name.length ? descriptor.name : "Enum" + unnamedEnumIndex++,
values,
fromDescriptorOptions(descriptor.options, exports.EnumOptions)
);
};
/**
* Converts an enum to a descriptor.
* @returns {Message<IEnumDescriptorProto>} Descriptor
*/
Enum.prototype.toDescriptor = function toDescriptor() {
// Values
var values = [];
for (var i = 0, ks = Object.keys(this.values); i < ks.length; ++i)
values.push(exports.EnumValueDescriptorProto.create({ name: ks[i], number: this.values[ks[i]] }));
return exports.EnumDescriptorProto.create({
name: this.name,
value: values,
options: toDescriptorOptions(this.options, exports.EnumOptions)
});
};
// --- OneOf ---
/**
* Properties of a OneofDescriptorProto message.
* @interface IOneofDescriptorProto
* @property {string} [name] Oneof name
* @property {*} [options] Not supported
*/
var unnamedOneofIndex = 0;
/**
* Creates a oneof from a descriptor.
* @param {IOneofDescriptorProto|Reader|Uint8Array} descriptor Descriptor
* @returns {OneOf} OneOf instance
*/
OneOf.fromDescriptor = function fromDescriptor(descriptor) {
// Decode the descriptor message if specified as a buffer:
if (typeof descriptor.length === "number")
descriptor = exports.OneofDescriptorProto.decode(descriptor);
return new OneOf(
// unnamedOneOfIndex is global, not per type, because we have no ref to a type here
descriptor.name && descriptor.name.length ? descriptor.name : "oneof" + unnamedOneofIndex++
// fromDescriptorOptions(descriptor.options, exports.OneofOptions) - only uninterpreted_option
);
};
/**
* Converts a oneof to a descriptor.
* @returns {Message<IOneofDescriptorProto>} Descriptor
*/
OneOf.prototype.toDescriptor = function toDescriptor() {
return exports.OneofDescriptorProto.create({
name: this.name
// options: toDescriptorOptions(this.options, exports.OneofOptions) - only uninterpreted_option
});
};
// --- Service ---
/**
* Properties of a ServiceDescriptorProto message.
* @interface IServiceDescriptorProto
* @property {string} [name] Service name
* @property {IMethodDescriptorProto[]} [method] Methods
* @property {IServiceOptions} [options] Options
*/
/**
* Properties of a ServiceOptions message.
* @interface IServiceOptions
* @property {boolean} [deprecated]
*/
var unnamedServiceIndex = 0;
/**
* Creates a service from a descriptor.
* @param {IServiceDescriptorProto|Reader|Uint8Array} descriptor Descriptor
* @returns {Service} Service instance
*/
Service.fromDescriptor = function fromDescriptor(descriptor) {
// Decode the descriptor message if specified as a buffer:
if (typeof descriptor.length === "number")
descriptor = exports.ServiceDescriptorProto.decode(descriptor);
var service = new Service(descriptor.name && descriptor.name.length ? descriptor.name : "Service" + unnamedServiceIndex++, fromDescriptorOptions(descriptor.options, exports.ServiceOptions));
if (descriptor.method)
for (var i = 0; i < descriptor.method.length; ++i)
service.add(Method.fromDescriptor(descriptor.method[i]));
return service;
};
/**
* Converts a service to a descriptor.
* @returns {Message<IServiceDescriptorProto>} Descriptor
*/
Service.prototype.toDescriptor = function toDescriptor() {
// Methods
var methods = [];
for (var i = 0; i < this.methodsArray.length; ++i)
methods.push(this._methodsArray[i].toDescriptor());
return exports.ServiceDescriptorProto.create({
name: this.name,
method: methods,
options: toDescriptorOptions(this.options, exports.ServiceOptions)
});
};
// --- Method ---
/**
* Properties of a MethodDescriptorProto message.
* @interface IMethodDescriptorProto
* @property {string} [name] Method name
* @property {string} [inputType] Request type name
* @property {string} [outputType] Response type name
* @property {IMethodOptions} [options] Not supported
* @property {boolean} [clientStreaming=false] Whether requests are streamed
* @property {boolean} [serverStreaming=false] Whether responses are streamed
*/
/**
* Properties of a MethodOptions message.
* @interface IMethodOptions
* @property {boolean} [deprecated]
*/
var unnamedMethodIndex = 0;
/**
* Creates a method from a descriptor.
* @param {IMethodDescriptorProto|Reader|Uint8Array} descriptor Descriptor
* @returns {Method} Reflected method instance
*/
Method.fromDescriptor = function fromDescriptor(descriptor) {
// Decode the descriptor message if specified as a buffer:
if (typeof descriptor.length === "number")
descriptor = exports.MethodDescriptorProto.decode(descriptor);
return new Method(
// unnamedMethodIndex is global, not per service, because we have no ref to a service here
descriptor.name && descriptor.name.length ? descriptor.name : "Method" + unnamedMethodIndex++,
"rpc",
descriptor.inputType,
descriptor.outputType,
Boolean(descriptor.clientStreaming),
Boolean(descriptor.serverStreaming),
fromDescriptorOptions(descriptor.options, exports.MethodOptions)
);
};
/**
* Converts a method to a descriptor.
* @returns {Message<IMethodDescriptorProto>} Descriptor
*/
Method.prototype.toDescriptor = function toDescriptor() {
return exports.MethodDescriptorProto.create({
name: this.name,
inputType: this.resolvedRequestType ? this.resolvedRequestType.fullName : this.requestType,
outputType: this.resolvedResponseType ? this.resolvedResponseType.fullName : this.responseType,
clientStreaming: this.requestStream,
serverStreaming: this.responseStream,
options: toDescriptorOptions(this.options, exports.MethodOptions)
});
};
// --- utility ---
// Converts a descriptor type to a protobuf.js basic type
function fromDescriptorType(type) {
switch (type) {
// 0 is reserved for errors
case 1: return "double";
case 2: return "float";
case 3: return "int64";
case 4: return "uint64";
case 5: return "int32";
case 6: return "fixed64";
case 7: return "fixed32";
case 8: return "bool";
case 9: return "string";
case 12: return "bytes";
case 13: return "uint32";
case 15: return "sfixed32";
case 16: return "sfixed64";
case 17: return "sint32";
case 18: return "sint64";
}
throw Error("illegal type: " + type);
}
// Tests if a descriptor type is packable
function packableDescriptorType(type) {
switch (type) {
case 1: // double
case 2: // float
case 3: // int64
case 4: // uint64
case 5: // int32
case 6: // fixed64
case 7: // fixed32
case 8: // bool
case 13: // uint32
case 14: // enum (!)
case 15: // sfixed32
case 16: // sfixed64
case 17: // sint32
case 18: // sint64
return true;
}
return false;
}
// Converts a protobuf.js basic type to a descriptor type
function toDescriptorType(type, resolvedType) {
switch (type) {
// 0 is reserved for errors
case "double": return 1;
case "float": return 2;
case "int64": return 3;
case "uint64": return 4;
case "int32": return 5;
case "fixed64": return 6;
case "fixed32": return 7;
case "bool": return 8;
case "string": return 9;
case "bytes": return 12;
case "uint32": return 13;
case "sfixed32": return 15;
case "sfixed64": return 16;
case "sint32": return 17;
case "sint64": return 18;
}
if (resolvedType instanceof Enum)
return 14;
if (resolvedType instanceof Type)
return resolvedType.group ? 10 : 11;
throw Error("illegal type: " + type);
}
// Converts descriptor options to an options object
function fromDescriptorOptions(options, type) {
if (!options)
return undefined;
var out = [];
for (var i = 0, field, key, val; i < type.fieldsArray.length; ++i)
if ((key = (field = type._fieldsArray[i]).name) !== "uninterpretedOption")
if (options.hasOwnProperty(key)) { // eslint-disable-line no-prototype-builtins
val = options[key];
if (field.resolvedType instanceof Enum && typeof val === "number" && field.resolvedType.valuesById[val] !== undefined)
val = field.resolvedType.valuesById[val];
out.push(underScore(key), val);
}
return out.length ? $protobuf.util.toObject(out) : undefined;
}
// Converts an options object to descriptor options
function toDescriptorOptions(options, type) {
if (!options)
return undefined;
var out = [];
for (var i = 0, ks = Object.keys(options), key, val; i < ks.length; ++i) {
val = options[key = ks[i]];
if (key === "default")
continue;
var field = type.fields[key];
if (!field && !(field = type.fields[key = $protobuf.util.camelCase(key)]))
continue;
out.push(key, val);
}
return out.length ? type.fromObject($protobuf.util.toObject(out)) : undefined;
}
// Calculates the shortest relative path from `from` to `to`.
function shortname(from, to) {
var fromPath = from.fullName.split("."),
toPath = to.fullName.split("."),
i = 0,
j = 0,
k = toPath.length - 1;
if (!(from instanceof Root) && to instanceof Namespace)
while (i < fromPath.length && j < k && fromPath[i] === toPath[j]) {
var other = to.lookup(fromPath[i++], true);
if (other !== null && other !== to)
break;
++j;
}
else
for (; i < fromPath.length && j < k && fromPath[i] === toPath[j]; ++i, ++j);
return toPath.slice(j).join(".");
}
// copied here from cli/targets/proto.js
function underScore(str) {
return str.substring(0,1)
+ str.substring(1)
.replace(/([A-Z])(?=[a-z]|$)/g, function($0, $1) { return "_" + $1.toLowerCase(); });
}
// --- exports ---
/**
* Reflected file descriptor set.
* @name FileDescriptorSet
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected file descriptor proto.
* @name FileDescriptorProto
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected descriptor proto.
* @name DescriptorProto
* @type {Type}
* @property {Type} ExtensionRange
* @property {Type} ReservedRange
* @const
* @tstype $protobuf.Type & {
* ExtensionRange: $protobuf.Type,
* ReservedRange: $protobuf.Type
* }
*/
/**
* Reflected field descriptor proto.
* @name FieldDescriptorProto
* @type {Type}
* @property {Enum} Label
* @property {Enum} Type
* @const
* @tstype $protobuf.Type & {
* Label: $protobuf.Enum,
* Type: $protobuf.Enum
* }
*/
/**
* Reflected oneof descriptor proto.
* @name OneofDescriptorProto
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected enum descriptor proto.
* @name EnumDescriptorProto
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected service descriptor proto.
* @name ServiceDescriptorProto
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected enum value descriptor proto.
* @name EnumValueDescriptorProto
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected method descriptor proto.
* @name MethodDescriptorProto
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected file options.
* @name FileOptions
* @type {Type}
* @property {Enum} OptimizeMode
* @const
* @tstype $protobuf.Type & {
* OptimizeMode: $protobuf.Enum
* }
*/
/**
* Reflected message options.
* @name MessageOptions
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected field options.
* @name FieldOptions
* @type {Type}
* @property {Enum} CType
* @property {Enum} JSType
* @const
* @tstype $protobuf.Type & {
* CType: $protobuf.Enum,
* JSType: $protobuf.Enum
* }
*/
/**
* Reflected oneof options.
* @name OneofOptions
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected enum options.
* @name EnumOptions
* @type {Type}
* @const
* @tstype $protobuf.Type
*/
/**
* Reflected enum value options.
* @name EnumValueOptions
* @type {Type}