def StructFieldFromMojom(self, ordinal, mojom_field):
"""Translates a fidl_types_fidl.StructField to a module.StructField.
Args:
ordinal: {int} The 0-based ordinal position of the field within the
struct. Note that this is not necessarily the same as the lexical
order or the packing order.
mojom_field: {fidl_types_fidl.StructField} to be translated.
Returns:
{module.StructField} translated from mojom_field.
"""
struct_field = module.StructField()
self.PopulateCommonFieldValues(struct_field, mojom_field)
struct_field.computed_offset = mojom_field.offset
struct_field.computed_bit = mojom_field.bit
struct_field.computed_min_version = mojom_field.min_version
# Note that the |ordinal| attribute of |struct_field| records only the
# *declared* ordinal and as such is not defined for every field whereas
# the |computed_ordinal| attribute is defined for every field. If
# |ordinal| is defined then it is equal to |computed_ordinal|.
struct_field.ordinal = self.OrdinalFromMojom(mojom_field)
struct_field.computed_ordinal = ordinal
struct_field.declaration_order = mojom_field.decl_data.declaration_order
if mojom_field.default_value:
if (mojom_field.default_value.tag ==
fidl_types_fidl.DefaultFieldValue.Tags.default_keyword):
struct_field.default = 'default'
else:
struct_field.default = self.ValueFromMojom(
mojom_field.default_value.value)
return struct_field
def _StructField(module, parsed_field, struct):
"""
Args:
module: {mojom.Module} Module currently being constructed.
parsed_field: {ast.StructField} Parsed struct field.
struct: {mojom.Struct} Struct this field belongs to.
Returns:
{mojom.StructField} AST struct field.
"""
field = mojom.StructField()
field.mojom_name = parsed_field.mojom_name
field.kind = _Kind(module.kinds, _MapKind(parsed_field.typename),
(module.mojom_namespace, struct.mojom_name))
field.ordinal = parsed_field.ordinal.value if parsed_field.ordinal else None
field.default = _FixupExpression(
module, parsed_field.default_value,
(module.mojom_namespace, struct.mojom_name), field.kind)
field.attributes = _AttributeListToDict(parsed_field.attribute_list)
return field
def StructFieldFromMojom(self, mojom_field):
"""Translates a mojom_types_mojom.StructField to a module.StructField.
Args:
mojom_field: {mojom_types_mojom.StructField} to be translated.
Returns:
{module.StructField} translated from mojom_field.
"""
struct_field = module.StructField()
self.PopulateCommonFieldValues(struct_field, mojom_field)
struct_field.ordinal = self.OrdinalFromMojom(mojom_field)
if mojom_field.default_value:
if (mojom_field.default_value.tag ==
mojom_types_mojom.DefaultFieldValue.Tags.default_keyword):
struct_field.default = 'default'
else:
struct_field.default = self.ValueFromMojom(
mojom_field.default_value.value)
return struct_field
def StructFieldFromData(module, data, struct):
field = mojom.StructField()
PopulateField(field, module, data, struct)
return field
