JSVM_HandleScope__*

typedef struct JSVM_HandleScope__* JSVM_HandleScope

Overview

Defines the scope of the JavaScript value. It is used to control and modify the lifecycle of an object created in a specific scope. Typically, the JSVM-API value is created in the context of JSVM_HandleScope. When the native method is called from JavaScript, the default JSVM_HandleScope exists. If the user does not explicitly create a new JSVM_HandleScope, the JSVM-API value is created in the default JSVM_HandleScope. For any code call other than native method execution (for example, libuv callback), the module needs to create a scope before calling any function that may create a JavaScript value. JSVM_HandleScope is created using OH_JSVM_OpenHandleScope and destroyed using OH_JSVM_CloseHandleScope. Closing the scope indicates to the GC that all JSVM_Values created during the lifecycle of JSVM_HandleScope will no longer be referenced from the stack frame of the current heap.

Since: 11

Related module: JSVM

Header file: jsvm_types.h