js autodebugger tool

1 files changed, 39 insertions, 0 deletions

diff --git a/tools/autodebugger_js.py b/tools/autodebugger_js.py
new file mode 100644
index 00000000..ee90e6f1
--- /dev/null
+++ b/tools/autodebugger_js.py
@@ -0,0 +1,39 @@
+'''
+Processes a C source file, adding debugging information.
+
+Similar to autodebugger.py, but runs on .js files.
+'''
+
+import os, sys, re
+
+filename = sys.argv[1]
+func = sys.argv[2]
+
+f = open(filename, 'r')
+data = f.read()
+f.close()
+
+lines = data.split('\n')
+in_func = False
+for i in range(len(lines)):
+  if lines[i].startswith('function ' + func + '('):
+    in_func = True
+    continue
+  elif lines[i].startswith('}'):
+    in_func = False
+    continue
+  if in_func:
+    m = re.match('^ +([$_\w\d \[\]]+) = +([^;]+);$', lines[i])
+    if m and (' if ' not in lines[i-1] or '{' in lines[i-1]) and \
+             (' if ' not in lines[i+1] or '{' in lines[i+1]) and \
+             (' else' not in lines[i-1] or '{' in lines[i-1]) and \
+             (' else' not in lines[i+1] or '{' in lines[i+1]):
+      var = m.groups(1)[0].rstrip().split(' ')[-1]
+      if 'STACKTOP' not in lines[i] and 'stackBase' not in lines[i]:
+        #lines[i] += ''' print("[%4d] %s = " + %s);''' % (i+1, var, var)
+        lines[i] += ''' print("%s = " + %s);''' % (var, var)
+
+print '\n'.join(lines)
+
+print >> sys.stderr, 'Success.'
+