WebAssembly.LinkError()

WebAssembly.LinkError()构造器创建一个新的WebAssemblyLinkError对象,该对象表明一个模块创建时(besides traps from the start function)发生的错误.

句法

new WebAssembly.LinkError(message, fileName, lineNumber)

Parameters

message可选自然语言对错误的描述.fileName可选包含抛出异常代码的代码文件名.lineNumber可选抛出异常的代码行号.

Properties

LinkError不包含自己独立的属性,它仅仅继承了原型链上的属性.

WebAssembly.LinkError.prototype.constructor指明创建该实体的构造函数.WebAssembly.LinkError.prototype.messageError message. Although ECMA-262 specifies thatURIErrorshould provide its ownmessageproperty, in SpiderMonkey, it inheritsError.prototype.message.WebAssembly.LinkError.prototype.nameError name. Inherited fromError.WebAssembly.LinkError.prototype.fileNamePath to file that raised this error. Inherited fromError.WebAssembly.LinkError.prototype.lineNumberLine number in file that raised this error. Inherited fromError.WebAssembly.LinkError.prototype.columnNumberColumn number in line that raised this error. Inherited fromError.WebAssembly.LinkError.prototype.stackStack trace. Inherited fromError.

Methods

TheLinkErrorconstructor contains no methods of its own, however, it does inherit some methods through the prototype chain.

WebAssembly.LinkError.prototype.toSource()返回可以执行并得到与该错误对象相同的源代码.WebAssembly.LinkError.prototype.toString()返回一个可以说明该Error对象的文字.继承自Error.

Examples

下列代码片段创建了一个新的LinkError实例,并将其打印到控制台:

try {
  throw new WebAssembly.LinkError('Hello', 'someFile', 10);
} catch (e) {
  console.log(e instanceof LinkError); // true
  console.log(e.message);                 // "Hello"
  console.log(e.name);                    // "LinkError"
  console.log(e.fileName);                // "someFile"
  console.log(e.lineNumber);              // 10
  console.log(e.columnNumber);            // 0
  console.log(e.stack);                   // returns the location where the code was run
}