some primitive profiling tools

2 files changed, 49 insertions, 0 deletions

diff --git a/tools/profile_stripper.py b/tools/profile_stripper.py
new file mode 100644
index 00000000..bbc23937
--- /dev/null
+++ b/tools/profile_stripper.py
@@ -0,0 +1,21 @@
+# See profile_used.py
+#
+# profile file, js file
+
+import sys, json
+
+used = json.loads(open(sys.argv[1]).read())
+
+show = True
+
+for orig in open(sys.argv[2]).readlines():
+  line = orig.strip()
+  if orig.startswith('function _') and line.endswith(('){', ') {')):
+    name = line.split(' ')[1].split('(')[0]
+    if name.startswith('_') and not used.get(name):
+      #print >> sys.stderr, 'remove', name
+      show = False
+  if show: print orig,
+  if orig.startswith('}'):
+    show = True
+
diff --git a/tools/profile_used.py b/tools/profile_used.py
new file mode 100644
index 00000000..b954f7d1
--- /dev/null
+++ b/tools/profile_used.py
@@ -0,0 +1,28 @@
+# Run, then execute
+'''
+dump(JSON.stringify(usedFunctions))
+'''
+# then strip with profile_strip.py
+
+import sys
+
+print 'var usedFunctions = {};'
+#print "function getFuncName(f) { return f.toString().split(' ')[1].split('(')[0] }"
+print "function getFuncName(f) { return f.name }"
+
+last = []
+
+for line in open(sys.argv[1]).readlines():
+  line = line.strip()
+  print line
+  if line.startswith('function _') and line.endswith(('){', ') {')):
+    name = line.split(' ')[1].split('(')[0]
+    print 'usedFunctions["%s"] = 1;' % name
+  if line.startswith('var FUNCTION_TABLE'):
+    name = line.split(' ')[1].split('=')[0]
+    last += ['for (var i = 0; i < %s.length; i++) if (typeof %s[i] === "function") usedFunctions[getFuncName(%s[i])] = 1;' % (name, name, name)]
+  if len(last) > 0 and line.endswith(';'):
+    for l in last:
+      print l
+    last = []
+