flow like the river

BACK_BACK/node_modules/node-addon-api/doc/escapable_handle_scope.md

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+# EscapableHandleScope
+
+The `Napi::EscapableHandleScope` class is used to manage the lifetime of object handles
+which are created through the use of node-addon-api. These handles
+keep an object alive in the heap in order to ensure that the objects
+are not collected by the garbage collector while native code is using them.
+A handle may be created when any new node-addon-api Value or one
+of its subclasses is created or returned.
+
+The `Napi::EscapableHandleScope` is a special type of `Napi::HandleScope`
+which allows a single handle to be "promoted" to an outer scope.
+
+For more details refer to the section titled
+[Object lifetime management](object_lifetime_management.md).
+
+## Methods
+
+### Constructor
+
+Creates a new escapable handle scope.
+
+```cpp
+Napi::EscapableHandleScope Napi::EscapableHandleScope::New(Napi:Env env);
+```
+
+- `[in] Env`: The environment in which to construct the `Napi::EscapableHandleScope` object.
+
+Returns a new `Napi::EscapableHandleScope`
+
+### Constructor
+
+Creates a new escapable handle scope.
+
+```cpp
+Napi::EscapableHandleScope Napi::EscapableHandleScope::New(napi_env env, napi_handle_scope scope);
+```
+
+- `[in] env`: napi_env in which the scope passed in was created.
+- `[in] scope`: pre-existing napi_handle_scope.
+
+Returns a new `Napi::EscapableHandleScope` instance which wraps the
+napi_escapable_handle_scope handle passed in. This can be used
+to mix usage of the C N-API and node-addon-api.
+
+operator EscapableHandleScope::napi_escapable_handle_scope
+
+```cpp
+operator Napi::EscapableHandleScope::napi_escapable_handle_scope() const
+```
+
+Returns the N-API napi_escapable_handle_scope wrapped by the `Napi::EscapableHandleScope` object.
+This can be used to mix usage of the C N-API and node-addon-api by allowing
+the class to be used be converted to a napi_escapable_handle_scope.
+
+### Destructor
+```cpp
+Napi::EscapableHandleScope::~EscapableHandleScope();
+```
+
+Deletes the `Napi::EscapableHandleScope` instance and allows any objects/handles created
+in the scope to be collected by the garbage collector. There is no
+guarantee as to when the gargbage collector will do this.
+
+### Escape
+
+```cpp
+napi::Value Napi::EscapableHandleScope::Escape(napi_value escapee);
+```
+
+- `[in] escapee`: Napi::Value or napi_env to promote to the outer scope
+
+Returns `Napi::Value` which can be used in the outer scope. This method can
+be called at most once on a given `Napi::EscapableHandleScope`. If it is called
+more than once an exception will be thrown.
+
+### Env
+
+```cpp
+Napi::Env Napi::EscapableHandleScope::Env() const;
+```
+
+Returns the `Napi::Env` associated with the `Napi::EscapableHandleScope`.