tools: libxl: add an Enumeration type to the IDL

The IDL requires a specific value for each enumerate, this make it
much easier to avoid (or at least track) ABI changes since they must
now be explicit.

I believe I have used the same values as would have been chosen
previoulsy but have not confirmed.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>

1 files changed, 22 insertions, 1 deletions

diff --git a/tools/libxl/gentypes.py b/tools/libxl/gentypes.py
index 20d403079a..099a3919f2 100644
--- a/tools/libxl/gentypes.py
+++ b/tools/libxl/gentypes.py
@@ -34,7 +34,28 @@ def libxl_C_instance_of(ty, instancename):
 
 def libxl_C_type_define(ty, indent = ""):
     s = ""
-    if isinstance(ty, libxltypes.Aggregate):
+
+    if isinstance(ty, libxltypes.Enumeration):
+        if ty.comment is not None:
+            s += format_comment(0, ty.comment)
+        
+        if ty.typename is None:
+            s += "enum {\n"
+        else:
+            s += "typedef enum %s {\n" % ty.typename
+
+        for v in ty.values:
+            if v.comment is not None:
+                s += format_comment(4, v.comment)
+            x = "%s = %d" % (v.name, v.value)
+            x = x.replace("\n", "\n    ")
+            s += "    " + x + ",\n"
+        if ty.typename is None:
+            s += "}"
+        else:
+            s += "} %s" % ty.typename
+
+    elif isinstance(ty, libxltypes.Aggregate):
         if ty.comment is not None:
             s += format_comment(0, ty.comment)