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Canonical code style linter and formatter for JavaScript, SCSS and CSS.
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JavaScript
'use strict';
var _createClass = require('babel-runtime/helpers/create-class')['default'];
var _classCallCheck = require('babel-runtime/helpers/class-call-check')['default'];
var _Map = require('babel-runtime/core-js/map')['default'];
var _Set = require('babel-runtime/core-js/set')['default'];
var _interopRequireWildcard = require('babel-runtime/helpers/interop-require-wildcard')['default'];
var _interopRequireDefault = require('babel-runtime/helpers/interop-require-default')['default'];
Object.defineProperty(exports, '__esModule', {
value: true
});
exports.recursivePatternCapture = recursivePatternCapture;
var _fs = require('fs');
var fs = _interopRequireWildcard(_fs);
var _crypto = require('crypto');
var _parse2 = require('./parse');
var _parse3 = _interopRequireDefault(_parse2);
var _resolve = require('./resolve');
var _resolve2 = _interopRequireDefault(_resolve);
var _ignore = require('./ignore');
var _ignore2 = _interopRequireDefault(_ignore);
// map from settings sha1 => path => export map objects
var exportCaches = new _Map();
var ExportMap = (function () {
function ExportMap(context) {
_classCallCheck(this, ExportMap);
this.context = context;
this.named = new _Set();
this.errors = [];
}
/**
* Traverse a patter/identifier node, calling 'callback'
* for each leaf identifier.
* @param {node} pattern
* @param {Function} callback
* @return {void}
*/
_createClass(ExportMap, [{
key: 'resolveReExport',
value: function resolveReExport(node, base) {
var remotePath = _resolve2['default'].relative(node.source.value, base, this.settings);
if (remotePath == null) return null;
return ExportMap['for'](remotePath, this.context);
}
}, {
key: 'captureDefault',
value: function captureDefault(n) {
if (n.type !== 'ExportDefaultDeclaration') return;
this.named.add('default');
}
/**
* capture all named exports from remote module.
*
* returns null if this node wasn't an ExportAllDeclaration
* returns false if it was not resolved
* returns true if it was resolved + parsed
*
* @param {node} n
* @param {string} path - the path of the module currently parsing
* @return {boolean?}
*/
}, {
key: 'captureAll',
value: function captureAll(n, path) {
if (n.type !== 'ExportAllDeclaration') return null;
var remoteMap = this.resolveReExport(n, path);
if (remoteMap == null) return false;
remoteMap.named.forEach((function (name) {
this.named.add(name);
}).bind(this));
return true;
}
}, {
key: 'captureNamedDeclaration',
value: function captureNamedDeclaration(n, path) {
var _this = this;
if (n.type !== 'ExportNamedDeclaration') return;
// capture declaration
if (n.declaration != null) {
switch (n.declaration.type) {
case 'FunctionDeclaration':
case 'ClassDeclaration':
this.named.add(n.declaration.id.name);
break;
case 'VariableDeclaration':
n.declaration.declarations.forEach(function (d) {
return recursivePatternCapture(d.id, function (id) {
return _this.named.add(id.name);
});
});
break;
}
}
// capture specifiers
var remoteMap = undefined;
if (n.source) remoteMap = this.resolveReExport(n, path);
n.specifiers.forEach((function (s) {
if (s.type === 'ExportDefaultSpecifier') {
// don't add it if it is not present in the exported module
if (!remoteMap || !remoteMap.hasDefault) return;
}
this.named.add(s.exported.name);
}).bind(this));
}
}, {
key: 'settings',
get: function get() {
return this.context && this.context.settings;
}
}, {
key: 'hasDefault',
get: function get() {
return this.named.has('default');
}
}, {
key: 'hasNamed',
get: function get() {
return this.named.size > (this.hasDefault ? 1 : 0);
}
}], [{
key: 'get',
value: function get(source, context) {
var path = (0, _resolve2['default'])(source, context);
if (path == null || (0, _ignore2['default'])(path, context)) return null;
return ExportMap['for'](path, context);
}
}, {
key: 'for',
value: function _for(path, context) {
var exportMap = undefined;
var stats = fs.statSync(path);
var cacheKey = hashObject(context.settings);
var exportCache = exportCaches.get(cacheKey);
if (exportCache === undefined) {
exportCache = new _Map();
exportCaches.set(cacheKey, exportCache);
}
exportMap = exportCache.get(path);
if (exportMap != null) {
// date equality check
if (exportMap.mtime - stats.mtime === 0) {
return exportMap;
}
// future: check content equality?
}
exportMap = ExportMap.parse(path, context);
exportCache.set(path, exportMap);
exportMap.mtime = stats.mtime;
return exportMap;
}
}, {
key: 'parse',
value: function parse(path, context) {
var m = new ExportMap(context);
try {
var ast = (0, _parse3['default'])(path, context);
} catch (err) {
m.errors.push(err);
return m; // can't continue
}
ast.body.forEach(function (n) {
m.captureDefault(n);
m.captureAll(n, path);
m.captureNamedDeclaration(n, path);
});
return m;
}
}]);
return ExportMap;
})();
exports['default'] = ExportMap;
function recursivePatternCapture(pattern, callback) {
switch (pattern.type) {
case 'Identifier':
// base case
callback(pattern);
break;
case 'ObjectPattern':
pattern.properties.forEach(function (_ref) {
var value = _ref.value;
recursivePatternCapture(value, callback);
});
break;
case 'ArrayPattern':
pattern.elements.forEach(function (element) {
if (element == null) return;
recursivePatternCapture(element, callback);
});
break;
}
}
function hashObject(object) {
var settingsShasum = (0, _crypto.createHash)('sha1');
settingsShasum.update(JSON.stringify(object));
return settingsShasum.digest('hex');
}
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* as fs from 'fs'\n\nimport { createHash } from 'crypto'\n\nimport parse from './parse'\nimport resolve from './resolve'\nimport isIgnored from './ignore'\n\n// map from settings sha1 => path => export map objects\nconst exportCaches = new Map()\n\nexport default class ExportMap {\n  constructor(context) {\n    this.context = context\n    this.named = new Set()\n\n    this.errors = []\n  }\n\n  get settings() { return this.context && this.context.settings }\n\n  get hasDefault() { return this.named.has('default') }\n  get hasNamed() { return this.named.size > (this.hasDefault ? 1 : 0) }\n\n  static get(source, context) {\n\n    var path = resolve(source, context)\n    if (path == null || isIgnored(path, context)) return null\n\n    return ExportMap.for(path, context)\n  }\n\n  static for(path, context) {\n    let exportMap\n    const stats = fs.statSync(path)\n\n    const cacheKey = hashObject(context.settings)\n    let exportCache = exportCaches.get(cacheKey)\n    if (exportCache === undefined) {\n      exportCache = new Map()\n      exportCaches.set(cacheKey, exportCache)\n    }\n\n    exportMap = exportCache.get(path)\n    if (exportMap != null) {\n      // date equality check\n      if (exportMap.mtime - stats.mtime === 0) {\n        return exportMap\n      }\n      // future: check content equality?\n    }\n\n    exportMap = ExportMap.parse(path, context)\n\n    exportCache.set(path, exportMap)\n    exportMap.mtime = stats.mtime\n\n    return exportMap\n  }\n\n  static parse(path, context) {\n    var m = new ExportMap(context)\n\n    try {\n      var ast = parse(path, context)\n    } catch (err) {\n      m.errors.push(err)\n      return m // can't continue\n    }\n\n    ast.body.forEach(function (n) {\n      m.captureDefault(n)\n      m.captureAll(n, path)\n      m.captureNamedDeclaration(n, path)\n    })\n\n    return m\n  }\n\n  resolveReExport(node, base) {\n    var remotePath = resolve.relative(node.source.value, base, this.settings)\n    if (remotePath == null) return null\n\n    return ExportMap.for(remotePath, this.context)\n  }\n\n  captureDefault(n) {\n    if (n.type !== 'ExportDefaultDeclaration') return\n    this.named.add('default')\n  }\n\n  /**\n   * capture all named exports from remote module.\n   *\n   * returns null if this node wasn't an ExportAllDeclaration\n   * returns false if it was not resolved\n   * returns true if it was resolved + parsed\n   *\n   * @param  {node} n\n   * @param  {string} path - the path of the module currently parsing\n   * @return {boolean?}\n   */\n  captureAll(n, path) {\n    if (n.type !== 'ExportAllDeclaration') return null\n\n    var remoteMap = this.resolveReExport(n, path)\n    if (remoteMap == null) return false\n\n    remoteMap.named.forEach(function (name) { this.named.add(name) }.bind(this))\n\n    return true\n  }\n\n  captureNamedDeclaration(n, path) {\n    if (n.type !== 'ExportNamedDeclaration') return\n\n    // capture declaration\n    if (n.declaration != null) {\n      switch (n.declaration.type) {\n        case 'FunctionDeclaration':\n        case 'ClassDeclaration':\n          this.named.add(n.declaration.id.name)\n          break\n        case 'VariableDeclaration':\n          n.declaration.declarations.forEach((d) =>\n            recursivePatternCapture(d.id, id => this.named.add(id.name)))\n          break\n      }\n    }\n\n    // capture specifiers\n    let remoteMap\n    if (n.source) remoteMap = this.resolveReExport(n, path)\n\n    n.specifiers.forEach(function (s) {\n      if (s.type === 'ExportDefaultSpecifier') {\n        // don't add it if it is not present in the exported module\n        if (!remoteMap || !remoteMap.hasDefault) return\n      }\n\n      this.named.add(s.exported.name)\n    }.bind(this))\n  }\n}\n\n\n/**\n * Traverse a patter/identifier node, calling 'callback'\n * for each leaf identifier.\n * @param  {node}   pattern\n * @param  {Function} callback\n * @return {void}\n */\nexport function recursivePatternCapture(pattern, callback) {\n  switch (pattern.type) {\n    case 'Identifier': // base case\n      callback(pattern)\n      break\n\n    case 'ObjectPattern':\n      pattern.properties.forEach(({ value }) => {\n        recursivePatternCapture(value, callback)\n      })\n      break\n\n    case 'ArrayPattern':\n      pattern.elements.forEach((element) => {\n        if (element == null) return\n        recursivePatternCapture(element, callback)\n      })\n      break\n  }\n}\n\nfunction hashObject(object) {\n  const settingsShasum = createHash('sha1')\n  settingsShasum.update(JSON.stringify(object))\n  return settingsShasum.digest('hex')\n}\n"]}