diff options
Diffstat (limited to 'morphlib/morphloader.py')
| -rw-r--r-- | morphlib/morphloader.py | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/morphlib/morphloader.py b/morphlib/morphloader.py index 637544be..32b5b40b 100644 --- a/morphlib/morphloader.py +++ b/morphlib/morphloader.py @@ -120,6 +120,27 @@ class DuplicateChunkError(morphlib.Error): 'in stratum %(stratum_name)s' % locals()) +class EmptyRefError(morphlib.Error): + + def __init__(self, ref_location, morphology): + self.ref_location = ref_location + self.morphology = morphology + morphlib.Error.__init__( + self, 'Empty ref found for %(ref_location)s '\ + 'in %(morphology)s' % locals()) + + +class ChunkSpecRefNotStringError(morphlib.Error): + + def __init__(self, ref_value, chunk_name, stratum_name): + self.ref_value = ref_value + self.chunk_name = chunk_name + self.stratum_name = stratum_name + morphlib.Error.__init__( + self, 'Ref %(ref_value)s for %(chunk_name)s '\ + 'in stratum %(stratum_name)s is not a string' % locals()) + + class SystemStrataNotListError(morphlib.Error): def __init__(self, system_name, strata_type): @@ -130,6 +151,7 @@ class SystemStrataNotListError(morphlib.Error): self, 'System %(system_name)s has the wrong type for its strata: '\ '%(typename)s, expected list' % locals()) + class DuplicateStratumError(morphlib.Error): def __init__(self, system_name, stratum_name): @@ -366,6 +388,17 @@ class MorphologyLoader(object): raise DuplicateChunkError(morph['name'], name) names.add(name) + # All chunk refs must be strings. + for spec in morph['chunks']: + if 'ref' in spec: + ref = spec['ref'] + if ref == None: + raise EmptyRefError( + spec.get('alias', spec['name']), morph.filename) + elif not isinstance(ref, basestring): + raise ChunkSpecRefNotStringError( + ref, spec.get('alias', spec['name']), morph.filename) + # Require build-dependencies for the stratum itself, unless # it has chunks built in bootstrap mode. if 'build-depends' not in morph: |