triangle_old/node_modules/eslint-plugin-import/lib/rules/extensions.js

'use strict';var _path = require('path');var _path2 = _interopRequireDefault(_path);

var _resolve = require('eslint-module-utils/resolve');var _resolve2 = _interopRequireDefault(_resolve);
var _importType = require('../core/importType');
var _docsUrl = require('../docsUrl');var _docsUrl2 = _interopRequireDefault(_docsUrl);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };}

const enumValues = { enum: ['always', 'ignorePackages', 'never'] };
const patternProperties = {
  type: 'object',
  patternProperties: { '.*': enumValues } };

const properties = {
  type: 'object',
  properties: {
    'pattern': patternProperties,
    'ignorePackages': { type: 'boolean' } } };



function buildProperties(context) {

  const result = {
    defaultConfig: 'never',
    pattern: {},
    ignorePackages: false };


  context.options.forEach(obj => {

    // If this is a string, set defaultConfig to its value
    if (typeof obj === 'string') {
      result.defaultConfig = obj;
      return;
    }

    // If this is not the new structure, transfer all props to result.pattern
    if (obj.pattern === undefined && obj.ignorePackages === undefined) {
      Object.assign(result.pattern, obj);
      return;
    }

    // If pattern is provided, transfer all props
    if (obj.pattern !== undefined) {
      Object.assign(result.pattern, obj.pattern);
    }

    // If ignorePackages is provided, transfer it to result
    if (obj.ignorePackages !== undefined) {
      result.ignorePackages = obj.ignorePackages;
    }
  });

  if (result.defaultConfig === 'ignorePackages') {
    result.defaultConfig = 'always';
    result.ignorePackages = true;
  }

  return result;
}

module.exports = {
  meta: {
    type: 'suggestion',
    docs: {
      url: (0, _docsUrl2.default)('extensions') },


    schema: {
      anyOf: [
      {
        type: 'array',
        items: [enumValues],
        additionalItems: false },

      {
        type: 'array',
        items: [
        enumValues,
        properties],

        additionalItems: false },

      {
        type: 'array',
        items: [properties],
        additionalItems: false },

      {
        type: 'array',
        items: [patternProperties],
        additionalItems: false },

      {
        type: 'array',
        items: [
        enumValues,
        patternProperties],

        additionalItems: false }] } },





  create: function (context) {

    const props = buildProperties(context);

    function getModifier(extension) {
      return props.pattern[extension] || props.defaultConfig;
    }

    function isUseOfExtensionRequired(extension, isPackage) {
      return getModifier(extension) === 'always' && (!props.ignorePackages || !isPackage);
    }

    function isUseOfExtensionForbidden(extension) {
      return getModifier(extension) === 'never';
    }

    function isResolvableWithoutExtension(file) {
      const extension = _path2.default.extname(file);
      const fileWithoutExtension = file.slice(0, -extension.length);
      const resolvedFileWithoutExtension = (0, _resolve2.default)(fileWithoutExtension, context);

      return resolvedFileWithoutExtension === (0, _resolve2.default)(file, context);
    }

    function isExternalRootModule(file) {
      const slashCount = file.split('/').length - 1;

      if ((0, _importType.isScopedModule)(file) && slashCount <= 1) return true;
      if ((0, _importType.isExternalModule)(file, context, (0, _resolve2.default)(file, context)) && !slashCount) return true;
      return false;
    }

    function checkFileExtension(node) {const
      source = node.source;

      // bail if the declaration doesn't have a source, e.g. "export { foo };"
      if (!source) return;

      const importPathWithQueryString = source.value;

      // don't enforce anything on builtins
      if ((0, _importType.isBuiltIn)(importPathWithQueryString, context.settings)) return;

      const importPath = importPathWithQueryString.replace(/\?(.*)$/, '');

      // don't enforce in root external packages as they may have names with `.js`.
      // Like `import Decimal from decimal.js`)
      if (isExternalRootModule(importPath)) return;

      const resolvedPath = (0, _resolve2.default)(importPath, context);

      // get extension from resolved path, if possible.
      // for unresolved, use source value.
      const extension = _path2.default.extname(resolvedPath || importPath).substring(1);

      // determine if this is a module
      const isPackage = (0, _importType.isExternalModule)(importPath, context.settings) ||
      (0, _importType.isScoped)(importPath);

      if (!extension || !importPath.endsWith(`.${extension}`)) {
        const extensionRequired = isUseOfExtensionRequired(extension, isPackage);
        const extensionForbidden = isUseOfExtensionForbidden(extension);
        if (extensionRequired && !extensionForbidden) {
          context.report({
            node: source,
            message:
            `Missing file extension ${extension ? `"${extension}" ` : ''}for "${importPathWithQueryString}"` });

        }
      } else if (extension) {
        if (isUseOfExtensionForbidden(extension) && isResolvableWithoutExtension(importPath)) {
          context.report({
            node: source,
            message: `Unexpected use of file extension "${extension}" for "${importPathWithQueryString}"` });

        }
      }
    }

    return {
      ImportDeclaration: checkFileExtension,
      ExportNamedDeclaration: checkFileExtension };

  } };
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