The `Persistent` class in v8 is used to create a strong reference to an object in the JavaScript heap, preventing it from being garbage collected until the `Persistent` instance is destroyed. The `Dispose` method is used to release the reference, allowing the object to be garbage collected if it is no longer being used.
Here are some code examples using `Persistent` and `Dispose` in C++ with the v8 library:
Example 1: Creating a persistent reference to an object
```c++ v8::Local obj = ... v8::Persistent persistentObj(isolate, obj); // `obj` can now be safely used and will not be garbage collected
Example 2: Disposing of a persistent reference
c++
v8::Persistent persistentObj(isolate, obj);
...
persistentObj.~Persistent(); // `obj` can now be garbage collected if it is not being used elsewhere
```
In these examples, `isolate` refers to an instance of `v8::Isolate`, and `obj` is a local object in the JavaScript heap.
Based on the use of `v8::Persistent` and `v8::Local`, it appears that these examples are using the v8 library for working with JavaScript in C++.
C++ (Cpp) Persistent::Dispose - 30 examples found. These are the top rated real world C++ (Cpp) examples of v8::Persistent::Dispose extracted from open source projects. You can rate examples to help us improve the quality of examples.