text: "use strict";
  /**
   * @license
   * Copyright 2016 Palantir Technologies, Inc.
   *
   * 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.
   */
  Object.defineProperty(exports, "__esModule", { value: true });
  var tslib_1 = require("tslib");
  var ts = require("typescript");
  var Lint = require("../index");
  var OPTION_ARRAY = "array";
  var OPTION_GENERIC = "generic";
  var OPTION_ARRAY_SIMPLE = "array-simple";
  var Rule = (function (_super) {
      tslib_1.__extends(Rule, _super);
      function Rule() {
          return _super !== null && _super.apply(this, arguments) || this;
      }
      Rule.prototype.apply = function (sourceFile) {
          return this.applyWithFunction(sourceFile, walk, this.ruleArguments[0]);
      };
      return Rule;
  }(Lint.Rules.AbstractRule));
  /* tslint:disable:object-literal-sort-keys */
  Rule.metadata = {
      ruleName: "array-type",
      description: "Requires using either 'T[]' or 'Array<T>' for arrays.",
      hasFix: true,
      optionsDescription: (_a = ["\n            One of the following arguments must be provided:\n\n            * `\"", "\"` enforces use of `T[]` for all types T.\n            * `\"", "\"` enforces use of `Array<T>` for all types T.\n            * `\"", "\"` enforces use of `T[]` if `T` is a simple type (primitive or type reference)."], _a.raw = ["\n            One of the following arguments must be provided:\n\n            * \\`\"", "\"\\` enforces use of \\`T[]\\` for all types T.\n            * \\`\"", "\"\\` enforces use of \\`Array<T>\\` for all types T.\n            * \\`\"", "\"\\` enforces use of \\`T[]\\` if \\`T\\` is a simple type (primitive or type reference)."], Lint.Utils.dedent(_a, OPTION_ARRAY, OPTION_GENERIC, OPTION_ARRAY_SIMPLE)),
      options: {
          type: "string",
          enum: [OPTION_ARRAY, OPTION_GENERIC, OPTION_ARRAY_SIMPLE],
      },
      optionExamples: [[true, OPTION_ARRAY], [true, OPTION_GENERIC], [true, OPTION_ARRAY_SIMPLE]],
      type: "style",
      typescriptOnly: true,
  };
  /* tslint:enable:object-literal-sort-keys */
  Rule.FAILURE_STRING_ARRAY = "Array type using 'Array<T>' is forbidden. Use 'T[]' instead.";
  Rule.FAILURE_STRING_GENERIC = "Array type using 'T[]' is forbidden. Use 'Array<T>' instead.";
  Rule.FAILURE_STRING_ARRAY_SIMPLE = "Array type using 'Array<T>' is forbidden for simple types. Use 'T[]' instead.";
  Rule.FAILURE_STRING_GENERIC_SIMPLE = "Array type using 'T[]' is forbidden for non-simple types. Use 'Array<T>' instead.";
  exports.Rule = Rule;
  function walk(ctx) {
      var sourceFile = ctx.sourceFile, option = ctx.options;
      return ts.forEachChild(sourceFile, function cb(node) {
          switch (node.kind) {
              case ts.SyntaxKind.ArrayType:
                  checkArrayType(node);
                  break;
              case ts.SyntaxKind.TypeReference:
                  checkTypeReference(node);
                  break;
          }
          return ts.forEachChild(node, cb);
      });
      function checkArrayType(node) {
          var elementType = node.elementType, parent = node.parent;
          if (option === "array" || option === "array-simple" && isSimpleType(elementType)) {
              return;
          }
          var failureString = option === "generic" ? Rule.FAILURE_STRING_GENERIC : Rule.FAILURE_STRING_GENERIC_SIMPLE;
          var parens = elementType.kind === ts.SyntaxKind.ParenthesizedType ? 1 : 0;
          // Add a space if the type is preceded by 'as' and the node has no leading whitespace
          var space = !parens && parent.kind === ts.SyntaxKind.AsExpression && node.getStart() === node.getFullStart();
          var fix = [
              new Lint.Replacement(elementType.getStart(), parens, (space ? " " : "") + "Array<"),
              // Delete the square brackets and replace with an angle bracket
              Lint.Replacement.replaceFromTo(elementType.getEnd() - parens, node.getEnd(), ">"),
          ];
          ctx.addFailureAtNode(node, failureString, fix);
      }
      function checkTypeReference(node) {
          var typeName = node.typeName, typeArguments = node.typeArguments;
          if (option === "generic" || !isArrayIdentifier(typeName)) {
              return;
          }
          var failureString = option === "array" ? Rule.FAILURE_STRING_ARRAY : Rule.FAILURE_STRING_ARRAY_SIMPLE;
          if (!typeArguments || typeArguments.length === 0) {
              // Create an 'any' array
              var fix_1 = Lint.Replacement.replaceFromTo(node.getStart(), node.getEnd(), "any[]");
              ctx.addFailureAtNode(node, failureString, fix_1);
              return;
          }
          if (typeArguments.length !== 1 || (option === "array-simple" && !isSimpleType(typeArguments[0]))) {
              return;
          }
          var type = typeArguments[0];
          var parens = typeNeedsParentheses(type);
          var fix = [
              // Delete 'Array<'
              Lint.Replacement.replaceFromTo(node.getStart(), type.getStart(), parens ? "(" : ""),
              // Delete '>' and replace with '[]
              Lint.Replacement.replaceFromTo(type.getEnd(), node.getEnd(), parens ? ")[]" : "[]"),
          ];
          ctx.addFailureAtNode(node, failureString, fix);
      }
  }
  function typeNeedsParentheses(type) {
      switch (type.kind) {
          case ts.SyntaxKind.UnionType:
          case ts.SyntaxKind.FunctionType:
          case ts.SyntaxKind.IntersectionType:
          case ts.SyntaxKind.TypeOperator:
              return true;
          default:
              return false;
      }
  }
  function isArrayIdentifier(name) {
      return name.kind === ts.SyntaxKind.Identifier && name.text === "Array";
  }
  function isSimpleType(nodeType) {
      switch (nodeType.kind) {
          case ts.SyntaxKind.AnyKeyword:
          case ts.SyntaxKind.ArrayType:
          case ts.SyntaxKind.BooleanKeyword:
          case ts.SyntaxKind.NullKeyword:
          case ts.SyntaxKind.ObjectKeyword:
          case ts.SyntaxKind.UndefinedKeyword:
          case ts.SyntaxKind.NumberKeyword:
          case ts.SyntaxKind.StringKeyword:
          case ts.SyntaxKind.SymbolKeyword:
          case ts.SyntaxKind.VoidKeyword:
          case ts.SyntaxKind.NeverKeyword:
              return true;
          case ts.SyntaxKind.TypeReference:
              // TypeReferences must be non-generic or be another Array with a simple type
              var _a = nodeType, typeName = _a.typeName, typeArguments = _a.typeArguments;
              if (!typeArguments) {
                  return true;
              }
              switch (typeArguments.length) {
                  case 0:
                      return true;
                  case 1:
                      return typeName.kind === ts.SyntaxKind.Identifier && typeName.text === "Array" && isSimpleType(typeArguments[0]);
                  default:
                      return false;
              }
          default:
              return false;
      }
  }
  var _a;
  