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diff --git a/contexts/data/lib/closure-library/closure/goog/proto2/fielddescriptor.js b/contexts/data/lib/closure-library/closure/goog/proto2/fielddescriptor.js
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--- a/contexts/data/lib/closure-library/closure/goog/proto2/fielddescriptor.js
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@@ -1,291 +0,0 @@
-// Copyright 2008 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview Protocol Buffer Field Descriptor class.
- */
-
-goog.provide('goog.proto2.FieldDescriptor');
-
-goog.require('goog.proto2.Util');
-goog.require('goog.string');
-
-
-
-/**
- * A class which describes a field in a Protocol Buffer 2 Message.
- *
- * @param {Function} messageType Constructor for the message
- * class to which the field described by this class belongs.
- * @param {number|string} tag The field's tag index.
- * @param {Object} metadata The metadata about this field that will be used
- * to construct this descriptor.
- *
- * @constructor
- */
-goog.proto2.FieldDescriptor = function(messageType, tag, metadata) {
- /**
- * The message type that contains the field that this
- * descriptor describes.
- * @type {Function}
- * @private
- */
- this.parent_ = messageType;
-
- // Ensure that the tag is numeric.
- goog.proto2.Util.assert(goog.string.isNumeric(tag));
-
- /**
- * The field's tag number.
- * @type {number}
- * @private
- */
- this.tag_ = /** @type {number} */ (tag);
-
- /**
- * The field's name.
- * @type {string}
- * @private
- */
- this.name_ = metadata.name;
-
- /** @type {goog.proto2.FieldDescriptor.FieldType} */
- metadata.fieldType;
-
- /** @type {*} */
- metadata.repeated;
-
- /** @type {*} */
- metadata.required;
-
- /**
- * If true, this field is a repeating field.
- * @type {boolean}
- * @private
- */
- this.isRepeated_ = !!metadata.repeated;
-
- /**
- * If true, this field is required.
- * @type {boolean}
- * @private
- */
- this.isRequired_ = !!metadata.required;
-
- /**
- * The field type of this field.
- * @type {goog.proto2.FieldDescriptor.FieldType}
- * @private
- */
- this.fieldType_ = metadata.fieldType;
-
- /**
- * If this field is a primitive: The native (ECMAScript) type of this field.
- * If an enumeration: The enumeration object.
- * If a message or group field: The Message function.
- * @type {Function}
- * @private
- */
- this.nativeType_ = metadata.type;
-
- /**
- * Is it permissible on deserialization to convert between numbers and
- * well-formed strings? Is true for 64-bit integral field types, false for
- * all other field types.
- * @type {boolean}
- * @private
- */
- this.deserializationConversionPermitted_ = false;
-
- switch (this.fieldType_) {
- case goog.proto2.FieldDescriptor.FieldType.INT64:
- case goog.proto2.FieldDescriptor.FieldType.UINT64:
- case goog.proto2.FieldDescriptor.FieldType.FIXED64:
- case goog.proto2.FieldDescriptor.FieldType.SFIXED64:
- case goog.proto2.FieldDescriptor.FieldType.SINT64:
- this.deserializationConversionPermitted_ = true;
- break;
- }
-
- /**
- * The default value of this field, if different from the default, default
- * value.
- * @type {*}
- * @private
- */
- this.defaultValue_ = metadata.defaultValue;
-};
-
-
-/**
- * An enumeration defining the possible field types.
- * Should be a mirror of that defined in descriptor.h.
- *
- * @enum {number}
- */
-goog.proto2.FieldDescriptor.FieldType = {
- DOUBLE: 1,
- FLOAT: 2,
- INT64: 3,
- UINT64: 4,
- INT32: 5,
- FIXED64: 6,
- FIXED32: 7,
- BOOL: 8,
- STRING: 9,
- GROUP: 10,
- MESSAGE: 11,
- BYTES: 12,
- UINT32: 13,
- ENUM: 14,
- SFIXED32: 15,
- SFIXED64: 16,
- SINT32: 17,
- SINT64: 18
-};
-
-
-/**
- * Returns the tag of the field that this descriptor represents.
- *
- * @return {number} The tag number.
- */
-goog.proto2.FieldDescriptor.prototype.getTag = function() {
- return this.tag_;
-};
-
-
-/**
- * Returns the descriptor describing the message that defined this field.
- * @return {goog.proto2.Descriptor} The descriptor.
- */
-goog.proto2.FieldDescriptor.prototype.getContainingType = function() {
- return this.parent_.getDescriptor();
-};
-
-
-/**
- * Returns the name of the field that this descriptor represents.
- * @return {string} The name.
- */
-goog.proto2.FieldDescriptor.prototype.getName = function() {
- return this.name_;
-};
-
-
-/**
- * Returns the default value of this field.
- * @return {*} The default value.
- */
-goog.proto2.FieldDescriptor.prototype.getDefaultValue = function() {
- if (this.defaultValue_ === undefined) {
- // Set the default value based on a new instance of the native type.
- // This will be (0, false, "") for (number, boolean, string) and will
- // be a new instance of a group/message if the field is a message type.
- var nativeType = this.nativeType_;
- if (nativeType === Boolean) {
- this.defaultValue_ = false;
- } else if (nativeType === Number) {
- this.defaultValue_ = 0;
- } else if (nativeType === String) {
- this.defaultValue_ = '';
- } else {
- this.defaultValue_ = new nativeType;
- }
- }
-
- return this.defaultValue_;
-};
-
-
-/**
- * Returns the field type of the field described by this descriptor.
- * @return {goog.proto2.FieldDescriptor.FieldType} The field type.
- */
-goog.proto2.FieldDescriptor.prototype.getFieldType = function() {
- return this.fieldType_;
-};
-
-
-/**
- * Returns the native (i.e. ECMAScript) type of the field described by this
- * descriptor.
- *
- * @return {Object} The native type.
- */
-goog.proto2.FieldDescriptor.prototype.getNativeType = function() {
- return this.nativeType_;
-};
-
-
-/**
- * Returns true if simple conversions between numbers and strings are permitted
- * during deserialization for this field.
- *
- * @return {boolean} Whether conversion is permitted.
- */
-goog.proto2.FieldDescriptor.prototype.deserializationConversionPermitted =
- function() {
- return this.deserializationConversionPermitted_;
-};
-
-
-/**
- * Returns the descriptor of the message type of this field. Only valid
- * for fields of type GROUP and MESSAGE.
- *
- * @return {goog.proto2.Descriptor} The message descriptor.
- */
-goog.proto2.FieldDescriptor.prototype.getFieldMessageType = function() {
- goog.proto2.Util.assert(this.isCompositeType(), 'Expected message or group');
-
- return this.nativeType_.getDescriptor();
-};
-
-
-/**
- * @return {boolean} True if the field stores composite data or repeated
- * composite data (message or group).
- */
-goog.proto2.FieldDescriptor.prototype.isCompositeType = function() {
- return this.fieldType_ == goog.proto2.FieldDescriptor.FieldType.MESSAGE ||
- this.fieldType_ == goog.proto2.FieldDescriptor.FieldType.GROUP;
-};
-
-
-/**
- * Returns whether the field described by this descriptor is repeating.
- * @return {boolean} Whether the field is repeated.
- */
-goog.proto2.FieldDescriptor.prototype.isRepeated = function() {
- return this.isRepeated_;
-};
-
-
-/**
- * Returns whether the field described by this descriptor is required.
- * @return {boolean} Whether the field is required.
- */
-goog.proto2.FieldDescriptor.prototype.isRequired = function() {
- return this.isRequired_;
-};
-
-
-/**
- * Returns whether the field described by this descriptor is optional.
- * @return {boolean} Whether the field is optional.
- */
-goog.proto2.FieldDescriptor.prototype.isOptional = function() {
- return !this.isRepeated_ && !this.isRequired_;
-};