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diff --git a/contexts/data/lib/closure-library/closure/goog/asserts/asserts.js b/contexts/data/lib/closure-library/closure/goog/asserts/asserts.js
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@@ -1,282 +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 Utilities to check the preconditions, postconditions and
- * invariants runtime.
- *
- * Methods in this package should be given special treatment by the compiler
- * for type-inference. For example, <code>goog.asserts.assert(foo)</code>
- * will restrict <code>foo</code> to a truthy value.
- *
- * The compiler has an option to disable asserts. So code like:
- * <code>
- * var x = goog.asserts.assert(foo()); goog.asserts.assert(bar());
- * </code>
- * will be transformed into:
- * <code>
- * var x = foo();
- * </code>
- * The compiler will leave in foo() (because its return value is used),
- * but it will remove bar() because it assumes it does not have side-effects.
- *
- */
-
-goog.provide('goog.asserts');
-goog.provide('goog.asserts.AssertionError');
-
-goog.require('goog.debug.Error');
-goog.require('goog.string');
-
-
-/**
- * @define {boolean} Whether to strip out asserts or to leave them in.
- */
-goog.asserts.ENABLE_ASSERTS = goog.DEBUG;
-
-
-
-/**
- * Error object for failed assertions.
- * @param {string} messagePattern The pattern that was used to form message.
- * @param {!Array.<*>} messageArgs The items to substitute into the pattern.
- * @constructor
- * @extends {goog.debug.Error}
- */
-goog.asserts.AssertionError = function(messagePattern, messageArgs) {
- messageArgs.unshift(messagePattern);
- goog.debug.Error.call(this, goog.string.subs.apply(null, messageArgs));
- // Remove the messagePattern afterwards to avoid permenantly modifying the
- // passed in array.
- messageArgs.shift();
-
- /**
- * The message pattern used to format the error message. Error handlers can
- * use this to uniquely identify the assertion.
- * @type {string}
- */
- this.messagePattern = messagePattern;
-};
-goog.inherits(goog.asserts.AssertionError, goog.debug.Error);
-
-
-/** @override */
-goog.asserts.AssertionError.prototype.name = 'AssertionError';
-
-
-/**
- * Throws an exception with the given message and "Assertion failed" prefixed
- * onto it.
- * @param {string} defaultMessage The message to use if givenMessage is empty.
- * @param {Array.<*>} defaultArgs The substitution arguments for defaultMessage.
- * @param {string|undefined} givenMessage Message supplied by the caller.
- * @param {Array.<*>} givenArgs The substitution arguments for givenMessage.
- * @throws {goog.asserts.AssertionError} When the value is not a number.
- * @private
- */
-goog.asserts.doAssertFailure_ =
- function(defaultMessage, defaultArgs, givenMessage, givenArgs) {
- var message = 'Assertion failed';
- if (givenMessage) {
- message += ': ' + givenMessage;
- var args = givenArgs;
- } else if (defaultMessage) {
- message += ': ' + defaultMessage;
- args = defaultArgs;
- }
- // The '' + works around an Opera 10 bug in the unit tests. Without it,
- // a stack trace is added to var message above. With this, a stack trace is
- // not added until this line (it causes the extra garbage to be added after
- // the assertion message instead of in the middle of it).
- throw new goog.asserts.AssertionError('' + message, args || []);
-};
-
-
-/**
- * Checks if the condition evaluates to true if goog.asserts.ENABLE_ASSERTS is
- * true.
- * @param {*} condition The condition to check.
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @return {*} The value of the condition.
- * @throws {goog.asserts.AssertionError} When the condition evaluates to false.
- */
-goog.asserts.assert = function(condition, opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS && !condition) {
- goog.asserts.doAssertFailure_('', null, opt_message,
- Array.prototype.slice.call(arguments, 2));
- }
- return condition;
-};
-
-
-/**
- * Fails if goog.asserts.ENABLE_ASSERTS is true. This function is useful in case
- * when we want to add a check in the unreachable area like switch-case
- * statement:
- *
- * <pre>
- * switch(type) {
- * case FOO: doSomething(); break;
- * case BAR: doSomethingElse(); break;
- * default: goog.assert.fail('Unrecognized type: ' + type);
- * // We have only 2 types - "default:" section is unreachable code.
- * }
- * </pre>
- *
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @throws {goog.asserts.AssertionError} Failure.
- */
-goog.asserts.fail = function(opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS) {
- throw new goog.asserts.AssertionError(
- 'Failure' + (opt_message ? ': ' + opt_message : ''),
- Array.prototype.slice.call(arguments, 1));
- }
-};
-
-
-/**
- * Checks if the value is a number if goog.asserts.ENABLE_ASSERTS is true.
- * @param {*} value The value to check.
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @return {number} The value, guaranteed to be a number when asserts enabled.
- * @throws {goog.asserts.AssertionError} When the value is not a number.
- */
-goog.asserts.assertNumber = function(value, opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS && !goog.isNumber(value)) {
- goog.asserts.doAssertFailure_('Expected number but got %s: %s.',
- [goog.typeOf(value), value], opt_message,
- Array.prototype.slice.call(arguments, 2));
- }
- return /** @type {number} */ (value);
-};
-
-
-/**
- * Checks if the value is a string if goog.asserts.ENABLE_ASSERTS is true.
- * @param {*} value The value to check.
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @return {string} The value, guaranteed to be a string when asserts enabled.
- * @throws {goog.asserts.AssertionError} When the value is not a string.
- */
-goog.asserts.assertString = function(value, opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS && !goog.isString(value)) {
- goog.asserts.doAssertFailure_('Expected string but got %s: %s.',
- [goog.typeOf(value), value], opt_message,
- Array.prototype.slice.call(arguments, 2));
- }
- return /** @type {string} */ (value);
-};
-
-
-/**
- * Checks if the value is a function if goog.asserts.ENABLE_ASSERTS is true.
- * @param {*} value The value to check.
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @return {!Function} The value, guaranteed to be a function when asserts
- * enabled.
- * @throws {goog.asserts.AssertionError} When the value is not a function.
- */
-goog.asserts.assertFunction = function(value, opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS && !goog.isFunction(value)) {
- goog.asserts.doAssertFailure_('Expected function but got %s: %s.',
- [goog.typeOf(value), value], opt_message,
- Array.prototype.slice.call(arguments, 2));
- }
- return /** @type {!Function} */ (value);
-};
-
-
-/**
- * Checks if the value is an Object if goog.asserts.ENABLE_ASSERTS is true.
- * @param {*} value The value to check.
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @return {!Object} The value, guaranteed to be a non-null object.
- * @throws {goog.asserts.AssertionError} When the value is not an object.
- */
-goog.asserts.assertObject = function(value, opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS && !goog.isObject(value)) {
- goog.asserts.doAssertFailure_('Expected object but got %s: %s.',
- [goog.typeOf(value), value],
- opt_message, Array.prototype.slice.call(arguments, 2));
- }
- return /** @type {!Object} */ (value);
-};
-
-
-/**
- * Checks if the value is an Array if goog.asserts.ENABLE_ASSERTS is true.
- * @param {*} value The value to check.
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @return {!Array} The value, guaranteed to be a non-null array.
- * @throws {goog.asserts.AssertionError} When the value is not an array.
- */
-goog.asserts.assertArray = function(value, opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS && !goog.isArray(value)) {
- goog.asserts.doAssertFailure_('Expected array but got %s: %s.',
- [goog.typeOf(value), value], opt_message,
- Array.prototype.slice.call(arguments, 2));
- }
- return /** @type {!Array} */ (value);
-};
-
-
-/**
- * Checks if the value is a boolean if goog.asserts.ENABLE_ASSERTS is true.
- * @param {*} value The value to check.
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @return {boolean} The value, guaranteed to be a boolean when asserts are
- * enabled.
- * @throws {goog.asserts.AssertionError} When the value is not a boolean.
- */
-goog.asserts.assertBoolean = function(value, opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS && !goog.isBoolean(value)) {
- goog.asserts.doAssertFailure_('Expected boolean but got %s: %s.',
- [goog.typeOf(value), value], opt_message,
- Array.prototype.slice.call(arguments, 2));
- }
- return /** @type {boolean} */ (value);
-};
-
-
-/**
- * Checks if the value is an instance of the user-defined type if
- * goog.asserts.ENABLE_ASSERTS is true.
- *
- * The compiler may tighten the type returned by this function.
- *
- * @param {*} value The value to check.
- * @param {!Function} type A user-defined constructor.
- * @param {string=} opt_message Error message in case of failure.
- * @param {...*} var_args The items to substitute into the failure message.
- * @throws {goog.asserts.AssertionError} When the value is not an instance of
- * type.
- * @return {!Object}
- */
-goog.asserts.assertInstanceof = function(value, type, opt_message, var_args) {
- if (goog.asserts.ENABLE_ASSERTS && !(value instanceof type)) {
- goog.asserts.doAssertFailure_('instanceof check failed.', null,
- opt_message, Array.prototype.slice.call(arguments, 3));
- }
- return /** @type {!Object} */(value);
-};
-