The WebAssembly.CompileError()
constructor creates a new WebAssembly CompileError
object, which indicates an error during WebAssembly decoding or validation.
Syntax
new WebAssembly.CompileError(message, fileName, lineNumber)
Parameters
-
message
Optional - Human-readable description of the error.
-
fileName
Optional - The name of the file containing the code that caused the exception.
-
lineNumber
Optional - The line number of the code that caused the exception.
Properties
The CompileError
constructor contains no unique properties of its own, however, it does inherit some properties through the prototype chain.
-
WebAssembly.CompileError.prototype.constructor
- Specifies the function that created an instance's prototype.
-
WebAssembly.CompileError.prototype.message
-
Error message. Although ECMA-262 specifies that
URIError
should provide its ownmessage
property, in SpiderMonkey, it inheritsError.prototype.message
. -
WebAssembly.CompileError.prototype.name
-
Error name. Inherited from
Error
. -
WebAssembly.CompileError.prototype.fileName
-
Path to file that raised this error. Inherited from
Error
. -
WebAssembly.CompileError.prototype.lineNumber
-
Line number in file that raised this error. Inherited from
Error
. -
WebAssembly.CompileError.prototype.columnNumber
-
Column number in line that raised this error. Inherited from
Error
. -
WebAssembly.CompileError.prototype.stack
-
Stack trace. Inherited from
Error
.
Methods
The CompileError
constructor contains no methods of its own, however, it does inherit some methods through the prototype chain.
-
WebAssembly.CompileError.prototype.toSource()
-
Returns code that could eval to the same error. Inherited from
Error
. -
WebAssembly.CompileError.prototype.toString()
-
Returns a string representing the specified
Error
object.. Inherited fromError
.
Examples
The following snippet creates a new CompileError
instance, and logs its details to the console:
try { throw new WebAssembly.CompileError('Hello', 'someFile', 10); } catch (e) { console.log(e instanceof CompileError); // true console.log(e.message); // "Hello" console.log(e.name); // "CompileError" 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 }
Specifications
Specification | Status | Comment |
---|---|---|
WebAssembly JavaScript Interface The definition of 'WebAssembly constructors' in that specification. |
Working Draft | Initial WebAssembly draft definition. |
ECMAScript Latest Draft (ECMA-262) The definition of 'NativeError' in that specification. |
Draft | Definition of standard NativeError types. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out
https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CompileError |
Chrome Full support 57 | Edge Full support 16 | Firefox Full support 52
|
IE No support No | Opera Full support 44 | Safari Full support 11 | WebView Android Full support 57 | Chrome Android Full support 57 | Firefox Android Full support 52
|
Opera Android ? | Safari iOS Full support 11 | Samsung Internet Android Full support 7.0 | nodejs Full support 8.0.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- See implementation notes.
- See implementation notes.