InternetProgramming/Lab3/node_modules/eslint-plugin-import/lib/rules/newline-after-import.js

'use strict';




var _staticRequire = require('../core/staticRequire');var _staticRequire2 = _interopRequireDefault(_staticRequire);
var _docsUrl = require('../docsUrl');var _docsUrl2 = _interopRequireDefault(_docsUrl);

var _debug = require('debug');var _debug2 = _interopRequireDefault(_debug);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { 'default': obj };}
var log = (0, _debug2['default'])('eslint-plugin-import:rules:newline-after-import');

//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
/**
 * @fileoverview Rule to enforce new line after import not followed by another import.
 * @author Radek Benkel
 */function containsNodeOrEqual(outerNode, innerNode) {return outerNode.range[0] <= innerNode.range[0] && outerNode.range[1] >= innerNode.range[1];}

function getScopeBody(scope) {
  if (scope.block.type === 'SwitchStatement') {
    log('SwitchStatement scopes not supported');
    return null;
  }var

  body = scope.block.body;
  if (body && body.type === 'BlockStatement') {
    return body.body;
  }

  return body;
}

function findNodeIndexInScopeBody(body, nodeToFind) {
  return body.findIndex(function (node) {return containsNodeOrEqual(node, nodeToFind);});
}

function getLineDifference(node, nextNode) {
  return nextNode.loc.start.line - node.loc.end.line;
}

function isClassWithDecorator(node) {
  return node.type === 'ClassDeclaration' && node.decorators && node.decorators.length;
}

function isExportDefaultClass(node) {
  return node.type === 'ExportDefaultDeclaration' && node.declaration.type === 'ClassDeclaration';
}

function isExportNameClass(node) {

  return node.type === 'ExportNamedDeclaration' && node.declaration && node.declaration.type === 'ClassDeclaration';
}

module.exports = {
  meta: {
    type: 'layout',
    docs: {
      category: 'Style guide',
      description: 'Enforce a newline after import statements.',
      url: (0, _docsUrl2['default'])('newline-after-import') },

    fixable: 'whitespace',
    schema: [
    {
      type: 'object',
      properties: {
        count: {
          type: 'integer',
          minimum: 1 },

        considerComments: { type: 'boolean' } },

      additionalProperties: false }] },



  create: function () {function create(context) {
      var level = 0;
      var requireCalls = [];
      var options = Object.assign({ count: 1, considerComments: false }, context.options[0]);

      function checkForNewLine(node, nextNode, type) {
        if (isExportDefaultClass(nextNode) || isExportNameClass(nextNode)) {
          var classNode = nextNode.declaration;

          if (isClassWithDecorator(classNode)) {
            nextNode = classNode.decorators[0];
          }
        } else if (isClassWithDecorator(nextNode)) {
          nextNode = nextNode.decorators[0];
        }

        var lineDifference = getLineDifference(node, nextNode);
        var EXPECTED_LINE_DIFFERENCE = options.count + 1;

        if (lineDifference < EXPECTED_LINE_DIFFERENCE) {
          var column = node.loc.start.column;

          if (node.loc.start.line !== node.loc.end.line) {
            column = 0;
          }

          context.report({
            loc: {
              line: node.loc.end.line,
              column: column },

            message: 'Expected ' + String(options.count) + ' empty line' + (options.count > 1 ? 's' : '') + ' after ' + String(type) + ' statement not followed by another ' + String(type) + '.',
            fix: function () {function fix(fixer) {return fixer.insertTextAfter(
                node,
                '\n'.repeat(EXPECTED_LINE_DIFFERENCE - lineDifference));}return fix;}() });


        }
      }

      function commentAfterImport(node, nextComment) {
        var lineDifference = getLineDifference(node, nextComment);
        var EXPECTED_LINE_DIFFERENCE = options.count + 1;

        if (lineDifference < EXPECTED_LINE_DIFFERENCE) {
          var column = node.loc.start.column;

          if (node.loc.start.line !== node.loc.end.line) {
            column = 0;
          }

          context.report({
            loc: {
              line: node.loc.end.line,
              column: column },

            message: 'Expected ' + String(options.count) + ' empty line' + (options.count > 1 ? 's' : '') + ' after import statement not followed by another import.',
            fix: function () {function fix(fixer) {return fixer.insertTextAfter(
                node,
                '\n'.repeat(EXPECTED_LINE_DIFFERENCE - lineDifference));}return fix;}() });


        }
      }

      function incrementLevel() {
        level++;
      }
      function decrementLevel() {
        level--;
      }

      function checkImport(node) {var
        parent = node.parent;

        if (!parent || !parent.body) {
          return;
        }

        var nodePosition = parent.body.indexOf(node);
        var nextNode = parent.body[nodePosition + 1];
        var endLine = node.loc.end.line;
        var nextComment = void 0;

        if (typeof parent.comments !== 'undefined' && options.considerComments) {
          nextComment = parent.comments.find(function (o) {return o.loc.start.line === endLine + 1;});
        }

        // skip "export import"s
        if (node.type === 'TSImportEqualsDeclaration' && node.isExport) {
          return;
        }

        if (nextComment && typeof nextComment !== 'undefined') {
          commentAfterImport(node, nextComment);
        } else if (nextNode && nextNode.type !== 'ImportDeclaration' && (nextNode.type !== 'TSImportEqualsDeclaration' || nextNode.isExport)) {
          checkForNewLine(node, nextNode, 'import');
        }
      }

      return {
        ImportDeclaration: checkImport,
        TSImportEqualsDeclaration: checkImport,
        CallExpression: function () {function CallExpression(node) {
            if ((0, _staticRequire2['default'])(node) && level === 0) {
              requireCalls.push(node);
            }
          }return CallExpression;}(),
        'Program:exit': function () {function ProgramExit() {
            log('exit processing for', context.getPhysicalFilename ? context.getPhysicalFilename() : context.getFilename());
            var scopeBody = getScopeBody(context.getScope());
            log('got scope:', scopeBody);

            requireCalls.forEach(function (node, index) {
              var nodePosition = findNodeIndexInScopeBody(scopeBody, node);
              log('node position in scope:', nodePosition);

              var statementWithRequireCall = scopeBody[nodePosition];
              var nextStatement = scopeBody[nodePosition + 1];
              var nextRequireCall = requireCalls[index + 1];

              if (nextRequireCall && containsNodeOrEqual(statementWithRequireCall, nextRequireCall)) {
                return;
              }

              if (
              nextStatement && (
              !nextRequireCall ||
              !containsNodeOrEqual(nextStatement, nextRequireCall)))

              {

                checkForNewLine(statementWithRequireCall, nextStatement, 'require');
              }
            });
          }return ProgramExit;}(),
        FunctionDeclaration: incrementLevel,
        FunctionExpression: incrementLevel,
        ArrowFunctionExpression: incrementLevel,
        BlockStatement: incrementLevel,
        ObjectExpression: incrementLevel,
        Decorator: incrementLevel,
        'FunctionDeclaration:exit': decrementLevel,
        'FunctionExpression:exit': decrementLevel,
        'ArrowFunctionExpression:exit': decrementLevel,
        'BlockStatement:exit': decrementLevel,
        'ObjectExpression:exit': decrementLevel,
        'Decorator:exit': decrementLevel };

    }return create;}() };
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