JS_SetPendingException 编辑

Sets the current exception being thrown within a context.

Syntax

void
JS_SetPendingException(JSContext *cx, JS::HandleValue v);

Description

JS_SetPendingException sets the current exception being thrown within a context. If an exception is already being thrown, it is replaced with the new one given.

v is the new value to throw as an exception.

A native function or hook using this to throw an exception must also return false to ensure the exception is thrown.

Each JSContext's pending-exception field is a GC root. That is, garbage collection never collects a pending exception.

See examples in the JSAPI Phrasebook.

See Also

• MXR ID Search for JS_SetPendingException
• JS_IsExceptionPending
• JS_GetPendingException
• JS_ClearPendingException
• JS_ReportPendingException