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-rwxr-xr-xsrc/tools/vppapigen/vppapigen.py49
1 files changed, 35 insertions, 14 deletions
diff --git a/src/tools/vppapigen/vppapigen.py b/src/tools/vppapigen/vppapigen.py
index fa7e47afb73..bb4e2c4f5cf 100755
--- a/src/tools/vppapigen/vppapigen.py
+++ b/src/tools/vppapigen/vppapigen.py
@@ -22,10 +22,15 @@ sys.dont_write_bytecode = True
# Global dictionary of new types (including enums)
global_types = {}
+seen_imports = {}
+
def global_type_add(name, obj):
'''Add new type to the dictionary of types '''
type_name = 'vl_api_' + name + '_t'
+ if type_name in global_types:
+ raise KeyError("Attempted redefinition of {!r} with {!r}.".format(
+ name, obj))
global_types[type_name] = obj
@@ -320,20 +325,35 @@ class Enum():
class Import():
- def __init__(self, filename):
- self.filename = filename
- # Deal with imports
- parser = VPPAPI(filename=filename)
- dirlist = dirlist_get()
- f = filename
- for dir in dirlist:
- f = os.path.join(dir, filename)
- if os.path.exists(f):
- break
+ def __new__(cls, *args, **kwargs):
+ if args[0] not in seen_imports:
+ instance = super().__new__(cls)
+ instance._initialized = False
+ seen_imports[args[0]] = instance
+
+ return seen_imports[args[0]]
- with open(f, encoding='utf-8') as fd:
- self.result = parser.parse_file(fd, None)
+ def __init__(self, filename):
+ if self._initialized:
+ return
+ else:
+ self.filename = filename
+ # Deal with imports
+ parser = VPPAPI(filename=filename)
+ dirlist = dirlist_get()
+ f = filename
+ for dir in dirlist:
+ f = os.path.join(dir, filename)
+ if os.path.exists(f):
+ break
+ if sys.version[0] == '2':
+ with open(f) as fd:
+ self.result = parser.parse_file(fd, None)
+ else:
+ with open(f, encoding='utf-8') as fd:
+ self.result = parser.parse_file(fd, None)
+ self._initialized = True
def __repr__(self):
return self.filename
@@ -859,9 +879,10 @@ class VPPAPI(object):
continue
if isinstance(o, Import):
result.append(o)
- self.process_imports(o.result, True, result)
+ result = self.process_imports(o.result, True, result)
else:
result.append(o)
+ return result
# Add message ids to each message.
@@ -955,7 +976,7 @@ def main():
if args.output_module == 'C':
s = parser.process(parsed_objects)
else:
- parser.process_imports(parsed_objects, False, result)
+ result = parser.process_imports(parsed_objects, False, result)
s = parser.process(result)
# Add msg_id field