From 4c9fb0b8b94bbd422dc0ea63c50c784624bf6be5 Mon Sep 17 00:00:00 2001
From: Peter LaFosse <peter@vector35.com>
Date: Wed, 27 May 2020 09:01:19 -0400
Subject: Add context manager for BinaryViews in the python API

---
 python/__init__.py   | 24 ++++++++++++++++++++++++
 python/binaryview.py |  6 ++++++
 2 files changed, 30 insertions(+)

(limited to 'python')

diff --git a/python/__init__.py b/python/__init__.py
index c046d51e..82f591db 100644
--- a/python/__init__.py
+++ b/python/__init__.py
@@ -255,3 +255,27 @@ def get_memory_usage_info():
 	core.BNFreeMemoryUsageInfo(info, count.value)
 	return result
 
+
+class open_view(object):
+	"""
+	Context Manager for BinaryView objects
+
+	:Example:
+		>>> from binaryninja import *
+		>>> with open_view("/bin/ls") as bv:
+		...     print(len(bv.functions))
+		...
+		128
+
+	"""
+	def __init__(self, *args, **kwargs):
+		self.args = args
+		self.kwargs = kwargs
+
+	def __enter__(self):
+		self.view = BinaryViewType.get_view_of_file(*self.args, **self.kwargs)
+		return self.view
+
+	def __exit__(self, type, value, traceback):
+		if self.view is not None:
+			self.view.file.close()
\ No newline at end of file
diff --git a/python/binaryview.py b/python/binaryview.py
index 9074b58c..994d9edd 100644
--- a/python/binaryview.py
+++ b/python/binaryview.py
@@ -1323,6 +1323,12 @@ class BinaryView(object):
 		self._notifications = {}
 		self._next_address = None  # Do NOT try to access view before init() is called, use placeholder
 
+	def __enter__(self):
+		return self
+
+	def __exit__(self, type, value, traceback):
+		self.file.close()
+
 	def __del__(self):
 		for i in self.notifications.values():
 			i._unregister()
-- 
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