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			66 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			JavaScript
		
	
		
		
			
		
	
	
			66 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			JavaScript
		
	
| 
											9 months ago
										 | "use strict"; | ||
|  | 
 | ||
|  | function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } | ||
|  | 
 | ||
|  | Object.defineProperty(exports, "__esModule", { | ||
|  |   value: true | ||
|  | }); | ||
|  | exports.shrinkPaddedLEB128 = shrinkPaddedLEB128; | ||
|  | 
 | ||
|  | var _wasmParser = require("@webassemblyjs/wasm-parser"); | ||
|  | 
 | ||
|  | var _leb = require("./leb128.js"); | ||
|  | 
 | ||
|  | function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } | ||
|  | 
 | ||
|  | function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); } | ||
|  | 
 | ||
|  | function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; } | ||
|  | 
 | ||
|  | function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } else if (call !== void 0) { throw new TypeError("Derived constructors may only return object or undefined"); } return _assertThisInitialized(self); } | ||
|  | 
 | ||
|  | function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; } | ||
|  | 
 | ||
|  | function _wrapNativeSuper(Class) { var _cache = typeof Map === "function" ? new Map() : undefined; _wrapNativeSuper = function _wrapNativeSuper(Class) { if (Class === null || !_isNativeFunction(Class)) return Class; if (typeof Class !== "function") { throw new TypeError("Super expression must either be null or a function"); } if (typeof _cache !== "undefined") { if (_cache.has(Class)) return _cache.get(Class); _cache.set(Class, Wrapper); } function Wrapper() { return _construct(Class, arguments, _getPrototypeOf(this).constructor); } Wrapper.prototype = Object.create(Class.prototype, { constructor: { value: Wrapper, enumerable: false, writable: true, configurable: true } }); return _setPrototypeOf(Wrapper, Class); }; return _wrapNativeSuper(Class); } | ||
|  | 
 | ||
|  | function _construct(Parent, args, Class) { if (_isNativeReflectConstruct()) { _construct = Reflect.construct; } else { _construct = function _construct(Parent, args, Class) { var a = [null]; a.push.apply(a, args); var Constructor = Function.bind.apply(Parent, a); var instance = new Constructor(); if (Class) _setPrototypeOf(instance, Class.prototype); return instance; }; } return _construct.apply(null, arguments); } | ||
|  | 
 | ||
|  | function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); return true; } catch (e) { return false; } } | ||
|  | 
 | ||
|  | function _isNativeFunction(fn) { return Function.toString.call(fn).indexOf("[native code]") !== -1; } | ||
|  | 
 | ||
|  | function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); } | ||
|  | 
 | ||
|  | function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); } | ||
|  | 
 | ||
|  | var OptimizerError = /*#__PURE__*/function (_Error) { | ||
|  |   _inherits(OptimizerError, _Error); | ||
|  | 
 | ||
|  |   var _super = _createSuper(OptimizerError); | ||
|  | 
 | ||
|  |   function OptimizerError(name, initalError) { | ||
|  |     var _this; | ||
|  | 
 | ||
|  |     _classCallCheck(this, OptimizerError); | ||
|  | 
 | ||
|  |     _this = _super.call(this, "Error while optimizing: " + name + ": " + initalError.message); | ||
|  |     _this.stack = initalError.stack; | ||
|  |     return _this; | ||
|  |   } | ||
|  | 
 | ||
|  |   return OptimizerError; | ||
|  | }( /*#__PURE__*/_wrapNativeSuper(Error)); | ||
|  | 
 | ||
|  | var decoderOpts = { | ||
|  |   ignoreCodeSection: true, | ||
|  |   ignoreDataSection: true | ||
|  | }; | ||
|  | 
 | ||
|  | function shrinkPaddedLEB128(uint8Buffer) { | ||
|  |   try { | ||
|  |     var ast = (0, _wasmParser.decode)(uint8Buffer.buffer, decoderOpts); | ||
|  |     return (0, _leb.shrinkPaddedLEB128)(ast, uint8Buffer); | ||
|  |   } catch (e) { | ||
|  |     throw new OptimizerError("shrinkPaddedLEB128", e); | ||
|  |   } | ||
|  | } |