1 files changed, 50 insertions, 0 deletions
diff --git a/debuginfo-tests/dexter/dex/utils/Timer.py b/debuginfo-tests/dexter/dex/utils/Timer.py
new file mode 100644
index 00000000000..63726f1a757
--- /dev/null
+++ b/debuginfo-tests/dexter/dex/utils/Timer.py
@@ -0,0 +1,50 @@
+# DExTer : Debugging Experience Tester
+# ~~~~~~   ~         ~~         ~   ~~
+#
+# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+"""RAII-style timer class to be used with a 'with' statement to get wall clock
+time for the contained code.
+"""
+
+import sys
+import time
+
+
+def _indent(indent):
+    return '| ' * indent
+
+
+class Timer(object):
+    fn = sys.stdout.write
+    display = False
+    indent = 0
+
+    def __init__(self, name=None):
+        self.name = name
+        self.start = self.now
+
+    def __enter__(self):
+        Timer.indent += 1
+        if Timer.display and self.name:
+            indent = _indent(Timer.indent - 1) + ' _'
+            Timer.fn('{}\n'.format(_indent(Timer.indent - 1)))
+            Timer.fn('{} start {}\n'.format(indent, self.name))
+        return self
+
+    def __exit__(self, *args):
+        if Timer.display and self.name:
+            indent = _indent(Timer.indent - 1) + '|_'
+            Timer.fn('{} {} time taken: {:0.1f}s\n'.format(
+                indent, self.name, self.elapsed))
+            Timer.fn('{}\n'.format(_indent(Timer.indent - 1)))
+        Timer.indent -= 1
+
+    @property
+    def elapsed(self):
+        return self.now - self.start
+
+    @property
+    def now(self):
+        return time.time()