Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / protobufjs / src / enum.js

diff --git a/legacy-libs/protobufjs/src/enum.js b/legacy-libs/protobufjs/src/enum.js
new file mode 100644 (file)
index 0000000..b11014b
--- /dev/null
+++ b/legacy-libs/protobufjs/src/enum.js
@@ -0,0 +1,181 @@
+"use strict";
+module.exports = Enum;
+
+// extends ReflectionObject
+var ReflectionObject = require("./object");
+((Enum.prototype = Object.create(ReflectionObject.prototype)).constructor = Enum).className = "Enum";
+
+var Namespace = require("./namespace"),
+    util = require("./util");
+
+/**
+ * Constructs a new enum instance.
+ * @classdesc Reflected enum.
+ * @extends ReflectionObject
+ * @constructor
+ * @param {string} name Unique name within its namespace
+ * @param {Object.<string,number>} [values] Enum values as an object, by name
+ * @param {Object.<string,*>} [options] Declared options
+ * @param {string} [comment] The comment for this enum
+ * @param {Object.<string,string>} [comments] The value comments for this enum
+ */
+function Enum(name, values, options, comment, comments) {
+    ReflectionObject.call(this, name, options);
+
+    if (values && typeof values !== "object")
+        throw TypeError("values must be an object");
+
+    /**
+     * Enum values by id.
+     * @type {Object.<number,string>}
+     */
+    this.valuesById = {};
+
+    /**
+     * Enum values by name.
+     * @type {Object.<string,number>}
+     */
+    this.values = Object.create(this.valuesById); // toJSON, marker
+
+    /**
+     * Enum comment text.
+     * @type {string|null}
+     */
+    this.comment = comment;
+
+    /**
+     * Value comment texts, if any.
+     * @type {Object.<string,string>}
+     */
+    this.comments = comments || {};
+
+    /**
+     * Reserved ranges, if any.
+     * @type {Array.<number[]|string>}
+     */
+    this.reserved = undefined; // toJSON
+
+    // Note that values inherit valuesById on their prototype which makes them a TypeScript-
+    // compatible enum. This is used by pbts to write actual enum definitions that work for
+    // static and reflection code alike instead of emitting generic object definitions.
+
+    if (values)
+        for (var keys = Object.keys(values), i = 0; i < keys.length; ++i)
+            if (typeof values[keys[i]] === "number") // use forward entries only
+                this.valuesById[ this.values[keys[i]] = values[keys[i]] ] = keys[i];
+}
+
+/**
+ * Enum descriptor.
+ * @interface IEnum
+ * @property {Object.<string,number>} values Enum values
+ * @property {Object.<string,*>} [options] Enum options
+ */
+
+/**
+ * Constructs an enum from an enum descriptor.
+ * @param {string} name Enum name
+ * @param {IEnum} json Enum descriptor
+ * @returns {Enum} Created enum
+ * @throws {TypeError} If arguments are invalid
+ */
+Enum.fromJSON = function fromJSON(name, json) {
+    var enm = new Enum(name, json.values, json.options, json.comment, json.comments);
+    enm.reserved = json.reserved;
+    return enm;
+};
+
+/**
+ * Converts this enum to an enum descriptor.
+ * @param {IToJSONOptions} [toJSONOptions] JSON conversion options
+ * @returns {IEnum} Enum descriptor
+ */
+Enum.prototype.toJSON = function toJSON(toJSONOptions) {
+    var keepComments = toJSONOptions ? Boolean(toJSONOptions.keepComments) : false;
+    return util.toObject([
+        "options"  , this.options,
+        "values"   , this.values,
+        "reserved" , this.reserved && this.reserved.length ? this.reserved : undefined,
+        "comment"  , keepComments ? this.comment : undefined,
+        "comments" , keepComments ? this.comments : undefined
+    ]);
+};
+
+/**
+ * Adds a value to this enum.
+ * @param {string} name Value name
+ * @param {number} id Value id
+ * @param {string} [comment] Comment, if any
+ * @returns {Enum} `this`
+ * @throws {TypeError} If arguments are invalid
+ * @throws {Error} If there is already a value with this name or id
+ */
+Enum.prototype.add = function add(name, id, comment) {
+    // utilized by the parser but not by .fromJSON
+
+    if (!util.isString(name))
+        throw TypeError("name must be a string");
+
+    if (!util.isInteger(id))
+        throw TypeError("id must be an integer");
+
+    if (this.values[name] !== undefined)
+        throw Error("duplicate name '" + name + "' in " + this);
+
+    if (this.isReservedId(id))
+        throw Error("id " + id + " is reserved in " + this);
+
+    if (this.isReservedName(name))
+        throw Error("name '" + name + "' is reserved in " + this);
+
+    if (this.valuesById[id] !== undefined) {
+        if (!(this.options && this.options.allow_alias))
+            throw Error("duplicate id " + id + " in " + this);
+        this.values[name] = id;
+    } else
+        this.valuesById[this.values[name] = id] = name;
+
+    this.comments[name] = comment || null;
+    return this;
+};
+
+/**
+ * Removes a value from this enum
+ * @param {string} name Value name
+ * @returns {Enum} `this`
+ * @throws {TypeError} If arguments are invalid
+ * @throws {Error} If `name` is not a name of this enum
+ */
+Enum.prototype.remove = function remove(name) {
+
+    if (!util.isString(name))
+        throw TypeError("name must be a string");
+
+    var val = this.values[name];
+    if (val == null)
+        throw Error("name '" + name + "' does not exist in " + this);
+
+    delete this.valuesById[val];
+    delete this.values[name];
+    delete this.comments[name];
+
+    return this;
+};
+
+/**
+ * Tests if the specified id is reserved.
+ * @param {number} id Id to test
+ * @returns {boolean} `true` if reserved, otherwise `false`
+ */
+Enum.prototype.isReservedId = function isReservedId(id) {
+    return Namespace.isReservedId(this.reserved, id);
+};
+
+/**
+ * Tests if the specified name is reserved.
+ * @param {string} name Name to test
+ * @returns {boolean} `true` if reserved, otherwise `false`
+ */
+Enum.prototype.isReservedName = function isReservedName(name) {
+    return Namespace.isReservedName(this.reserved, name);
+};