def _create_inherited_flag_field(property_):
"""
Create the field used for an inheritance fast path from an independent CSS
property, and return the Field object.
"""
name_for_methods = NameStyleConverter(
property_['name_for_methods']).to_function_name(
suffix=['is', 'inherited'])
name_source = NameStyleConverter(name_for_methods)
return Field(
'inherited_flag',
name_for_methods,
property_name=property_['name'].original,
type_name='bool',
wrapper_pointer_name=None,
field_template='primitive',
size=1,
default_value='true',
custom_copy=False,
custom_compare=False,
mutable=False,
getter_method_name=name_source.to_function_name(),
setter_method_name=name_source.to_function_name(prefix='set'),
initial_method_name=name_source.to_function_name(prefix='initial'),
computed_style_custom_functions=property_[
"computed_style_custom_functions"],
)
def _create_inherited_flag_field(property_):
"""
Create the field used for an inheritance fast path from an independent CSS
property, and return the Field object.
"""
name_for_methods = join_names(property_['name_for_methods'], 'is',
'inherited')
return Field(
'inherited_flag',
name_for_methods,
property_name=property_['name'],
type_name='bool',
wrapper_pointer_name=None,
field_template='primitive',
size=1,
default_value='true',
custom_copy=False,
custom_compare=False,
mutable=False,
getter_method_name=method_name(name_for_methods),
setter_method_name=method_name(['set', name_for_methods]),
initial_method_name=method_name(['initial', name_for_methods]),
computed_style_custom_functions=property_[
"computed_style_custom_functions"],
)
def _create_property_field(property_):
"""
Create a property field.
"""
name_for_methods = property_['name_for_methods']
assert property_['default_value'] is not None, \
'MakeComputedStyleBase requires an default value for all fields, ' \
'none specified for property ' + property_['name']
type_name = property_['type_name']
if property_['field_template'] == 'keyword':
assert property_['field_size'] is None, \
("'" + property_['name'] + "' is a keyword field, "
"so it should not specify a field_size")
size = int(math.ceil(math.log(len(property_['keywords']), 2)))
elif property_['field_template'] == 'multi_keyword':
size = len(property_['keywords']) - 1 # Subtract 1 for 'none' keyword
elif property_['field_template'] == 'external':
size = None
elif property_['field_template'] == 'primitive':
# pack bools with 1 bit.
size = 1 if type_name == 'bool' else property_["field_size"]
elif property_['field_template'] == 'pointer':
size = None
else:
assert property_['field_template'] == 'monotonic_flag', \
"Please use a valid value for field_template"
size = 1
return Field(
'property',
name_for_methods,
property_name=property_['name'].original,
inherited=property_['inherited'],
independent=property_['independent'],
semi_independent_variable=property_['semi_independent_variable'],
type_name=property_['type_name'],
wrapper_pointer_name=property_['wrapper_pointer_name'],
field_template=property_['field_template'],
size=size,
default_value=property_['default_value'],
custom_copy=property_['custom_copy'],
custom_compare=property_['custom_compare'],
mutable=property_['mutable'],
getter_method_name=property_['getter'],
setter_method_name=property_['setter'],
initial_method_name=property_['initial'],
computed_style_custom_functions=property_[
'computed_style_custom_functions'],
)
