Commit 9ba02574 authored by Iustin Pop's avatar Iustin Pop
Browse files

Add custom code for CV_E* constants to convert-constants

Currently, the cluster verify errors are defined as follows:


This means there's no standalone name for the string "ECLUSTER_FOO",
which makes it hard to derive automatically a type for this union in

There are three possible fixes:

- manually separate the CV_ECLUSTER_FOO_STR = "ECLUSTER_FOO" in
- manually extract the strings in Haskell code
- change convert-constants to automatically export virtual constants
  for those

After discussion on IRC, I've taken the latter approach; even though a
bit hack-ish, it avoids manual work and potential errors.
Signed-off-by: default avatarIustin Pop <>
Reviewed-by: default avatarMichael Hanselmann <>
parent e1ebbfcf
......@@ -231,6 +231,13 @@ def ConvertVariable(prefix, name, value, all_items):
value[k], all_items))
elif isinstance(value, tuple):
tvs = [HaskellTypeVal(elem) for elem in value]
# Custom rule for special cluster verify error tuples
if name.startswith("CV_E") and len(value) == 3 and tvs[1][0] is not None:
cv_ename = hs_name + "Code"
lines.append("-- | Special cluster verify code %s" % name)
lines.append("%s :: %s" % (cv_ename, tvs[1][0]))
lines.append("%s = %s" % (cv_ename, tvs[1][1]))
if compat.all(e is not None for e in tvs):
ttypes = ", ".join(e[0] for e in tvs)
tvals = FormatListElems(all_items, pfx_name, value, [e[1] for e in tvs])
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