add a tracing option to the c api, which logs out a runnable program from c api calls

1 files changed, 23 insertions, 0 deletions

diff --git a/scripts/clean_c_api_trace.py b/scripts/clean_c_api_trace.py
new file mode 100755
index 000000000..efe8baa43
--- /dev/null
+++ b/scripts/clean_c_api_trace.py
@@ -0,0 +1,23 @@
+#! /usr/bin/env python
+
+'''
+Cleans up output from the C api, makes a runnable C file
+'''
+
+import sys
+
+trace = open(sys.argv[1]).read()
+
+start = trace.find('// beginning a Binaryen API trace')
+if start >= 0:
+  trace = trace[start:]
+
+  while 1:
+    start = trace.find('\n(')
+    if start < 0:
+      break
+    end = trace.find('\n)', start + 1)
+    assert end > 0
+    trace = trace[:start] + trace[end + 2:]
+
+  print trace