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Closure Compiler is a JavaScript optimizing compiler. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls. It is used in many of Google's JavaScript apps, including Gmail, Google Web Search, Google Maps, and Google Docs. This binary checks for style issues such as incorrect or missing JSDoc usage, and missing goog.require() statements. It does not do more advanced checks such as typechecking.

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/*
 * Copyright 2016 The Closure Compiler Authors.
 *
 * 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.
 */
package com.google.javascript.jscomp;

/**
 * Static error constants related to the {@link PolymerPass}.
 */
final class PolymerPassErrors {
  // TODO(jlklein): Switch back to an error when everyone is upgraded to Polymer 1.0
  static final DiagnosticType POLYMER_DESCRIPTOR_NOT_VALID =
      DiagnosticType.warning(
          "JSC_POLYMER_DESCRIPTOR_NOT_VALID",
          "The argument to Polymer() is not an obj lit or the Polymer 2 class does not have a"
              + " static getter named 'config'. Ignoring this definition.");

  static final DiagnosticType POLYMER_INVALID_BEHAVIOR = DiagnosticType.error(
      "JSC_POLYMER_INVALID_BEHAVIOR", "A Polymer behavior may not include an ''is'' property.");

  static final DiagnosticType POLYMER_MISSING_IS = DiagnosticType.error("JSC_POLYMER_MISSING_IS",
      "The class descriptor must include an ''is'' property.");

  static final DiagnosticType POLYMER_UNEXPECTED_PARAMS = DiagnosticType.error(
      "JSC_POLYMER_UNEXPECTED_PARAMS", "The class definition has too many arguments.");

  static final DiagnosticType POLYMER_MISSING_EXTERNS = DiagnosticType.error(
      "JSC_POLYMER_MISSING_EXTERNS", "Missing Polymer externs.");

  static final DiagnosticType POLYMER_INVALID_PROPERTY = DiagnosticType.error(
      "JSC_POLYMER_INVALID_PROPERTY", "Polymer property has an invalid or missing type.");

  static final DiagnosticType POLYMER_INVALID_EXTENDS = DiagnosticType.error(
      "JSC_POLYMER_INVALID_EXTENDS",
      "Cannot extend HTML element ''{0}''. The element is probably either misspelled,"
          + " or needs to be added to the list of known elements.");

  static final DiagnosticType POLYMER_INVALID_BEHAVIOR_ARRAY = DiagnosticType.error(
      "JSC_POLYMER_INVALID_BEHAVIOR_ARRAY", "The behaviors property must be an array literal.");

  static final DiagnosticType POLYMER_UNQUALIFIED_BEHAVIOR = DiagnosticType.error(
      "JSC_POLYMER_UNQUALIFIED_BEHAVIOR",
      "Behaviors must be global names or qualified names that are declared as object literals or "
      + "array literals of other valid Behaviors.");

  static final DiagnosticType POLYMER_UNANNOTATED_BEHAVIOR = DiagnosticType.error(
      "JSC_POLYMER_UNANNOTATED_BEHAVIOR",
      "Behavior declarations must be annotated with @polymerBehavior.");

  static final DiagnosticType POLYMER_CLASS_PROPERTIES_INVALID =
      DiagnosticType.error(
          "JSC_POLYMER_CLASS_PROPERTIES_INVALID",
          "The Polymer element class 'properties' getter does not return an object literal. "
              + "Ignoring this definition.");

  static final DiagnosticType POLYMER_CLASS_PROPERTIES_NOT_STATIC =
      DiagnosticType.error(
          "JSC_POLYMER_CLASS_PROPERTIES_NOT_STATIC",
          "The Polymer element class 'properties' getter is not declared static. "
              + "Ignoring this definition.");

  static final DiagnosticType POLYMER_CLASS_UNNAMED =
      DiagnosticType.warning(
          "JSC_POLYMER2_UNNAMED",
          "Unable to locate a valid name for the Polymer element class."
              + "Ignoring this definition.");

  static final DiagnosticType POLYMER_MISPLACED_PROPERTY_JSDOC =
      DiagnosticType.warning(
          "JSC_POLYMER_MISPLACED_PROPERTY_JSDOC",
          "When a Polymer property is declared in the constructor, its JSDoc "
              + "should only be in the constructor, not on the Polymer properties configuration.");

  static final DiagnosticType POLYMER_UNPARSABLE_STRING =
      DiagnosticType.error(
          "JSC_POLYMER_UNPARSABLE_STRING",
          "The Polymer computed property or complex observer string could not be parsed.");

  private PolymerPassErrors() {}
}