/*TRANSPILED*/goog.loadModule(function(exports) {'use strict';/*

 Copyright The Closure Library Authors.
 SPDX-License-Identifier: Apache-2.0
*/
'use strict';
goog.module("goog.asserts");
goog.module.declareLegacyNamespace();
const DebugError = goog.require("goog.debug.Error");
const NodeType = goog.require("goog.dom.NodeType");
exports.ENABLE_ASSERTS = goog.define("goog.asserts.ENABLE_ASSERTS", goog.DEBUG);
function AssertionError(messagePattern, messageArgs) {
  DebugError.call(this, subs(messagePattern, messageArgs));
  this.messagePattern = messagePattern;
}
goog.inherits(AssertionError, DebugError);
exports.AssertionError = AssertionError;
AssertionError.prototype.name = "AssertionError";
exports.DEFAULT_ERROR_HANDLER = function(e) {
  throw e;
};
let errorHandler_ = exports.DEFAULT_ERROR_HANDLER;
function subs(pattern, subs) {
  const splitParts = pattern.split("%s");
  let returnString = "";
  const subLast = splitParts.length - 1;
  for (let i = 0; i < subLast; i++) {
    const sub = i < subs.length ? subs[i] : "%s";
    returnString += splitParts[i] + sub;
  }
  return returnString + splitParts[subLast];
}
function doAssertFailure(defaultMessage, defaultArgs, givenMessage, givenArgs) {
  let message = "Assertion failed";
  let args;
  if (givenMessage) {
    message += ": " + givenMessage;
    args = givenArgs;
  } else if (defaultMessage) {
    message += ": " + defaultMessage;
    args = defaultArgs;
  }
  const e = new AssertionError("" + message, args || []);
  errorHandler_(e);
}
exports.setErrorHandler = function(errorHandler) {
  if (exports.ENABLE_ASSERTS) {
    errorHandler_ = errorHandler;
  }
};
exports.assert = function(condition, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && !condition) {
    doAssertFailure("", null, opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return condition;
};
exports.assertExists = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && value == null) {
    doAssertFailure("Expected to exist: %s.", [value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
exports.fail = function(opt_message, var_args) {
  if (exports.ENABLE_ASSERTS) {
    errorHandler_(new AssertionError("Failure" + (opt_message ? ": " + opt_message : ""), Array.prototype.slice.call(arguments, 1)));
  }
};
exports.assertNumber = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && typeof value !== "number") {
    doAssertFailure("Expected number but got %s: %s.", [goog.typeOf(value), value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
exports.assertString = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && typeof value !== "string") {
    doAssertFailure("Expected string but got %s: %s.", [goog.typeOf(value), value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
exports.assertFunction = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && typeof value !== "function") {
    doAssertFailure("Expected function but got %s: %s.", [goog.typeOf(value), value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
exports.assertObject = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && !goog.isObject(value)) {
    doAssertFailure("Expected object but got %s: %s.", [goog.typeOf(value), value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
exports.assertArray = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && !Array.isArray(value)) {
    doAssertFailure("Expected array but got %s: %s.", [goog.typeOf(value), value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
exports.assertBoolean = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && typeof value !== "boolean") {
    doAssertFailure("Expected boolean but got %s: %s.", [goog.typeOf(value), value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
exports.assertElement = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && (!goog.isObject(value) || value.nodeType != NodeType.ELEMENT)) {
    doAssertFailure("Expected Element but got %s: %s.", [goog.typeOf(value), value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
exports.assertInstanceof = function(value, type, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && !(value instanceof type)) {
    doAssertFailure("Expected instanceof %s but got %s.", [getType(type), getType(value)], opt_message, Array.prototype.slice.call(arguments, 3));
  }
  return value;
};
exports.assertFinite = function(value, opt_message, var_args) {
  if (exports.ENABLE_ASSERTS && (typeof value != "number" || !isFinite(value))) {
    doAssertFailure("Expected %s to be a finite number but it is not.", [value], opt_message, Array.prototype.slice.call(arguments, 2));
  }
  return value;
};
function getType(value) {
  if (value instanceof Function) {
    return value.displayName || value.name || "unknown type name";
  } else if (value instanceof Object) {
    return value.constructor.displayName || value.constructor.name || Object.prototype.toString.call(value);
  } else {
    return value === null ? "null" : typeof value;
  }
}
;
;return exports;});