130 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
		
		
			
		
	
	
			130 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
|  | "use strict"; | ||
|  | 
 | ||
|  | Object.defineProperty(exports, "__esModule", { | ||
|  |   value: true | ||
|  | }); | ||
|  | exports.default = traverse; | ||
|  | Object.defineProperty(exports, "NodePath", { | ||
|  |   enumerable: true, | ||
|  |   get: function () { | ||
|  |     return _path.default; | ||
|  |   } | ||
|  | }); | ||
|  | Object.defineProperty(exports, "Scope", { | ||
|  |   enumerable: true, | ||
|  |   get: function () { | ||
|  |     return _scope.default; | ||
|  |   } | ||
|  | }); | ||
|  | Object.defineProperty(exports, "Hub", { | ||
|  |   enumerable: true, | ||
|  |   get: function () { | ||
|  |     return _hub.default; | ||
|  |   } | ||
|  | }); | ||
|  | exports.visitors = void 0; | ||
|  | 
 | ||
|  | var _context = _interopRequireDefault(require("./context")); | ||
|  | 
 | ||
|  | var visitors = _interopRequireWildcard(require("./visitors")); | ||
|  | 
 | ||
|  | exports.visitors = visitors; | ||
|  | 
 | ||
|  | function _includes() { | ||
|  |   const data = _interopRequireDefault(require("lodash/includes")); | ||
|  | 
 | ||
|  |   _includes = function () { | ||
|  |     return data; | ||
|  |   }; | ||
|  | 
 | ||
|  |   return data; | ||
|  | } | ||
|  | 
 | ||
|  | function t() { | ||
|  |   const data = _interopRequireWildcard(require("@babel/types")); | ||
|  | 
 | ||
|  |   t = function () { | ||
|  |     return data; | ||
|  |   }; | ||
|  | 
 | ||
|  |   return data; | ||
|  | } | ||
|  | 
 | ||
|  | var cache = _interopRequireWildcard(require("./cache")); | ||
|  | 
 | ||
|  | var _path = _interopRequireDefault(require("./path")); | ||
|  | 
 | ||
|  | var _scope = _interopRequireDefault(require("./scope")); | ||
|  | 
 | ||
|  | var _hub = _interopRequireDefault(require("./hub")); | ||
|  | 
 | ||
|  | function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } } | ||
|  | 
 | ||
|  | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } | ||
|  | 
 | ||
|  | function traverse(parent, opts, scope, state, parentPath) { | ||
|  |   if (!parent) return; | ||
|  |   if (!opts) opts = {}; | ||
|  | 
 | ||
|  |   if (!opts.noScope && !scope) { | ||
|  |     if (parent.type !== "Program" && parent.type !== "File") { | ||
|  |       throw new Error("You must pass a scope and parentPath unless traversing a Program/File. " + `Instead of that you tried to traverse a ${parent.type} node without ` + "passing scope and parentPath."); | ||
|  |     } | ||
|  |   } | ||
|  | 
 | ||
|  |   visitors.explode(opts); | ||
|  |   traverse.node(parent, opts, scope, state, parentPath); | ||
|  | } | ||
|  | 
 | ||
|  | traverse.visitors = visitors; | ||
|  | traverse.verify = visitors.verify; | ||
|  | traverse.explode = visitors.explode; | ||
|  | 
 | ||
|  | traverse.cheap = function (node, enter) { | ||
|  |   return t().traverseFast(node, enter); | ||
|  | }; | ||
|  | 
 | ||
|  | traverse.node = function (node, opts, scope, state, parentPath, skipKeys) { | ||
|  |   const keys = t().VISITOR_KEYS[node.type]; | ||
|  |   if (!keys) return; | ||
|  |   const context = new _context.default(scope, opts, state, parentPath); | ||
|  | 
 | ||
|  |   for (const key of keys) { | ||
|  |     if (skipKeys && skipKeys[key]) continue; | ||
|  |     if (context.visit(node, key)) return; | ||
|  |   } | ||
|  | }; | ||
|  | 
 | ||
|  | traverse.clearNode = function (node, opts) { | ||
|  |   t().removeProperties(node, opts); | ||
|  |   cache.path.delete(node); | ||
|  | }; | ||
|  | 
 | ||
|  | traverse.removeProperties = function (tree, opts) { | ||
|  |   t().traverseFast(tree, traverse.clearNode, opts); | ||
|  |   return tree; | ||
|  | }; | ||
|  | 
 | ||
|  | function hasBlacklistedType(path, state) { | ||
|  |   if (path.node.type === state.type) { | ||
|  |     state.has = true; | ||
|  |     path.stop(); | ||
|  |   } | ||
|  | } | ||
|  | 
 | ||
|  | traverse.hasType = function (tree, type, blacklistTypes) { | ||
|  |   if ((0, _includes().default)(blacklistTypes, tree.type)) return false; | ||
|  |   if (tree.type === type) return true; | ||
|  |   const state = { | ||
|  |     has: false, | ||
|  |     type: type | ||
|  |   }; | ||
|  |   traverse(tree, { | ||
|  |     noScope: true, | ||
|  |     blacklist: blacklistTypes, | ||
|  |     enter: hasBlacklistedType | ||
|  |   }, null, state); | ||
|  |   return state.has; | ||
|  | }; | ||
|  | 
 | ||
|  | traverse.cache = cache; |