add a little script to compute rust-evilness

src/top_evil_rs.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+
+import os
+
+if __name__ == "__main__":
+    filestats = []
+    for fn in os.listdir():
+        if fn.endswith(".rs"):
+            s = open(fn).read()
+            unsafe = s.count("unsafe")
+            free = s.count("free(")
+            gotoblocks = s.count("current_block =")
+            filestats.append((fn, unsafe, free, gotoblocks))
+
+    sum_unsafe, sum_free, sum_gotoblocks = 0, 0, 0
+
+    for fn, unsafe, free, gotoblocks in reversed(sorted(filestats, key=lambda x: sum(x[1:]))):
+        print("{0: <30} unsafe: {1: >3} free: {2: >3} goto-blocks: {3: >3}".format(fn, unsafe, free, gotoblocks))
+        sum_unsafe += unsafe
+        sum_free += free
+        sum_gotoblocks += gotoblocks
+
+
+    print()
+    print("total unsafe:", sum_unsafe)
+    print("total free:", sum_free)
+    print("total gotoblocks:", sum_gotoblocks)
+