def __validate1 (property):
""" Exit with error if property is not valid.
"""
msg = None
f = get_grist (property)
if f:
value = get_value (property)
if not feature.valid (f):
f = ungrist (get_grist (property)) # Ungrist for better error messages
msg = "Unknown feature '%s'" % f
elif value and not 'free' in feature.attributes (f):
feature.validate_value_string (f, value)
elif not value:
f = ungrist (get_grist (property)) # Ungrist for better error messages
msg = "No value specified for feature '%s'" % f
else:
f = feature.implied_feature (property)
feature.validate_value_string (f, property)
if msg:
# FIXME: don't use globals like this. Import here to
# break circular dependency.
from b2.manager import get_manager
get_manager().errors()("Invalid property '%s': %s" % (property, msg))
def create_from_string(s, allow_condition=False, allow_missing_value=False):
assert isinstance(s, basestring)
assert isinstance(allow_condition, bool)
assert isinstance(allow_missing_value, bool)
condition = []
import types
if not isinstance(s, types.StringType):
print type(s)
if __re_has_condition.search(s):
if not allow_condition:
raise BaseException(
"Conditional property is not allowed in this context")
m = __re_separate_condition_and_property.match(s)
condition = m.group(1)
s = m.group(2)
# FIXME: break dependency cycle
from b2.manager import get_manager
feature_name = get_grist(s)
if not feature_name:
if feature.is_implicit_value(s):
f = feature.implied_feature(s)
value = s
else:
raise get_manager().errors()(
"Invalid property '%s' -- unknown feature" % s)
else:
if feature.valid(feature_name):
f = feature.get(feature_name)
value = get_value(s)
else:
# In case feature name is not known, it is wrong to do a hard error.
# Feature sets change depending on the toolset. So e.g.
# <toolset-X:version> is an unknown feature when using toolset Y.
#
# Ideally we would like to ignore this value, but most of
# Boost.Build code expects that we return a valid Property. For this
# reason we use a sentinel <not-applicable-in-this-context> feature.
#
# The underlying cause for this problem is that python port Property
# is more strict than its Jam counterpart and must always reference
# a valid feature.
f = feature.get(__not_applicable_feature)
value = s
if not value and not allow_missing_value:
get_manager().errors()(
"Invalid property '%s' -- no value specified" % s)
if condition:
condition = [create_from_string(x) for x in condition.split(',')]
return Property(f, value, condition)
def create_from_string(s, allow_condition=False,allow_missing_value=False):
assert isinstance(s, basestring)
assert isinstance(allow_condition, bool)
assert isinstance(allow_missing_value, bool)
condition = []
import types
if not isinstance(s, types.StringType):
print type(s)
if __re_has_condition.search(s):
if not allow_condition:
raise BaseException("Conditional property is not allowed in this context")
m = __re_separate_condition_and_property.match(s)
condition = m.group(1)
s = m.group(2)
# FIXME: break dependency cycle
from b2.manager import get_manager
feature_name = get_grist(s)
if not feature_name:
if feature.is_implicit_value(s):
f = feature.implied_feature(s)
value = s
else:
raise get_manager().errors()("Invalid property '%s' -- unknown feature" % s)
else:
if feature.valid(feature_name):
f = feature.get(feature_name)
value = get_value(s)
else:
# In case feature name is not known, it is wrong to do a hard error.
# Feature sets change depending on the toolset. So e.g.
# <toolset-X:version> is an unknown feature when using toolset Y.
#
# Ideally we would like to ignore this value, but most of
# Boost.Build code expects that we return a valid Property. For this
# reason we use a sentinel <not-applicable-in-this-context> feature.
#
# The underlying cause for this problem is that python port Property
# is more strict than its Jam counterpart and must always reference
# a valid feature.
f = feature.get(__not_applicable_feature)
value = s
if not value and not allow_missing_value:
get_manager().errors()("Invalid property '%s' -- no value specified" % s)
if condition:
condition = [create_from_string(x) for x in condition.split(',')]
return Property(f, value, condition)
