Squashed 'third_party/protobuf/' content from commit e35e248
Change-Id: I6cbe123d09fe50fdcad0e51466665daeee7433c7
git-subtree-dir: third_party/protobuf
git-subtree-split: e35e24800fb8d694bdeea5fd63dc7d1b14d68723
diff --git a/js/debug.js b/js/debug.js
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+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/**
+ * @fileoverview Utilities to debug JSPB based proto objects.
+ */
+
+goog.provide('jspb.debug');
+
+goog.require('goog.array');
+goog.require('goog.asserts');
+goog.require('goog.object');
+goog.require('jspb.Message');
+
+
+/**
+ * Turns a proto into a human readable object that can i.e. be written to the
+ * console: {@code console.log(jspb.debug.dump(myProto))}.
+ * This function makes a best effort and may not work in all cases. It will not
+ * work in obfuscated and or optimized code.
+ * Use this in environments where {@see jspb.Message.prototype.toObject} is
+ * not available for code size reasons.
+ * @param {jspb.Message} message A jspb.Message.
+ * @return {Object}
+ */
+jspb.debug.dump = function(message) {
+ if (!goog.DEBUG) {
+ return null;
+ }
+ goog.asserts.assert(message instanceof jspb.Message,
+ 'jspb.Message instance expected');
+ /** @type {Object} */
+ var object = message;
+ goog.asserts.assert(object['getExtension'],
+ 'Only unobfuscated and unoptimized compilation modes supported.');
+ return /** @type {Object} */ (jspb.debug.dump_(message));
+};
+
+
+/**
+ * Recursively introspects a message and the values its getters return to
+ * make a best effort in creating a human readable representation of the
+ * message.
+ * @param {*} thing A jspb.Message, Array or primitive type to dump.
+ * @return {*}
+ * @private
+ */
+jspb.debug.dump_ = function(thing) {
+ var type = goog.typeOf(thing);
+ if (type == 'number' || type == 'string' || type == 'boolean' ||
+ type == 'null' || type == 'undefined') {
+ return thing;
+ }
+ if (type == 'array') {
+ goog.asserts.assertArray(thing);
+ return goog.array.map(thing, jspb.debug.dump_);
+ }
+ var message = thing; // Copy because we don't want type inference on thing.
+ goog.asserts.assert(message instanceof jspb.Message,
+ 'Only messages expected: ' + thing);
+ var ctor = message.constructor;
+ var messageName = ctor.name || ctor.displayName;
+ var object = {
+ '$name': messageName
+ };
+ for (var name in ctor.prototype) {
+ var match = /^get([A-Z]\w*)/.exec(name);
+ if (match && name != 'getExtension' &&
+ name != 'getJsPbMessageId') {
+ var val = thing[name]();
+ if (val != null) {
+ object[jspb.debug.formatFieldName_(match[1])] = jspb.debug.dump_(val);
+ }
+ }
+ }
+ if (COMPILED && thing['extensionObject_']) {
+ object['$extensions'] = 'Recursive dumping of extensions not supported ' +
+ 'in compiled code. Switch to uncompiled or dump extension object ' +
+ 'directly';
+ return object;
+ }
+ var extensionsObject;
+ for (var id in ctor['extensions']) {
+ if (/^\d+$/.test(id)) {
+ var ext = ctor['extensions'][id];
+ var extVal = thing.getExtension(ext);
+ var fieldName = goog.object.getKeys(ext.fieldName)[0];
+ if (extVal != null) {
+ if (!extensionsObject) {
+ extensionsObject = object['$extensions'] = {};
+ }
+ extensionsObject[jspb.debug.formatFieldName_(fieldName)] =
+ jspb.debug.dump_(extVal);
+ }
+ }
+ }
+ return object;
+};
+
+
+/**
+ * Formats a field name for output as camelCase.
+ *
+ * @param {string} name Name of the field.
+ * @return {string}
+ * @private
+ */
+jspb.debug.formatFieldName_ = function(name) {
+ // Name may be in TitleCase.
+ return name.replace(/^[A-Z]/, function(c) {
+ return c.toLowerCase();
+ });
+};