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JS::CreateError 编辑

This article covers features introduced in SpiderMonkey 38

Create an Error object.

Syntax

// Added in SpiderMonkey 45

bool
JS::CreateError(JSContext *cx, JSExnType type, HandleObject stack,
                HandleString fileName, uint32_t lineNumber, uint32_t columnNumber,
                JSErrorReport *report, HandleString message, MutableHandleValue rval);

// Obsolete since JSAPI 39

bool
JS::CreateError(JSContext *cx, JSExnType type, HandleString stack,
                HandleString fileName, uint32_t lineNumber, uint32_t columnNumber,
                JSErrorReport *report, HandleString message, MutableHandleValue rval);

Name	Type	Description
`cx`	`JSContext *`	Pointer to a JS context from which to derive runtime information. Requires request. In a `JS_THREADSAFE` build, the caller must be in a request on this `JSContext`.
`type`	`JSExnType`	The exception's type.
`stack`	`JS::HandleString` or `JS::HandleObject`	The value of `Error.prototype.stack`.
`fileName`	`JS::HandleString`	The value of `Error.prototype.fileName`.
`lineNumber`	`uint32_t`	The value of `Error.prototype.lineNumber`.
`columnNumber`	`uint32_t`	The value of `Error.prototype.columnNumber`.
`report`	`JSErrorReport *`	A pointer to `JSErrorReport` instance.
`message`	`JS::HandleString`	The value of `Error.prototype.message`.
`rval`	`JS::MutableHandleValue`	Out parameter. Receives the created error object.

Description

JS::CreateError creates an Error object with specified properties.

If successful, JS::CreateError stores the created error object to *rval and returns true, otherwise returns false and the value of *rval is undefined.

JS::CreateError 编辑

Syntax

Description

See Also

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友情链接

JS::CreateError 编辑

Syntax

Description

See Also

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友情链接

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