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dsdlc: union bit lengths

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This commit is contained in:
Pavel Kirienko
2015-07-10 17:20:53 +03:00
parent 37a8562961
commit 05f7c16cff
1 changed files with 33 additions and 9 deletions
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libuavcan/dsdl_compiler/libuavcan_dsdl_compiler/data_type_template.tmpl
+33 -9
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@@ -58,18 +58,45 @@ struct UAVCAN_EXPORT ${t.cpp_type_name}
${expand_attr_types(group_name='ConstantTypes', attrs=constants)}
${expand_attr_types(group_name='FieldTypes', attrs=fields)}
<!--(macro expand_enum_per_field)--> #! enum_name
% if union:
typedef IntegerSpec< ::uavcan::IntegerBitLen< ${len(fields)} >::Result,
::uavcan::SignednessUnsigned, ::uavcan::CastModeTruncate > TagType;
<!--(macro expand_enum_per_field)--> #! enum_name, enum_comparator
enum
{
${enum_name} = TagType::BitLen +
% for idx,a in enumerate(fields):
% if idx < (len(fields) - 1):
::uavcan::${enum_comparator}<FieldTypes::${a.name}::${enum_name},
% else:
FieldTypes::${a.name}::${enum_name} ${'>::Result' * (len(fields) - 1)}
% endif
% endfor
};
<!--(end)-->
${expand_enum_per_field(enum_name='MinBitLen', enum_comparator='EnumMin')}
${expand_enum_per_field(enum_name='MaxBitLen', enum_comparator='EnumMax')}
% else:
<!--(macro expand_enum_per_field)--> #! enum_name
enum
{
${enum_name}
% for idx,a in enumerate(fields):
% for idx,a in enumerate(fields):
${'=' if idx == 0 else '+'} FieldTypes::${a.name}::${enum_name}
% endfor
% endfor
};
<!--(end)-->
<!--(end)-->
${expand_enum_per_field(enum_name='MinBitLen')}
${expand_enum_per_field(enum_name='MaxBitLen')}
% endif
// Constants
% for a in constants:
static const typename ::uavcan::StorageType< typename ConstantTypes::${a.name} >::Type ${a.name}; // ${a.init_expression}
@@ -81,11 +108,8 @@ struct UAVCAN_EXPORT ${t.cpp_type_name}
% endfor
% if union:
private: // Union tag definition
typedef IntegerSpec< ::uavcan::IntegerBitLen< ${len(fields)} >::Result,
::uavcan::SignednessUnsigned, ::uavcan::CastModeTruncate > TagType;
typename ::uavcan::StorageType< TagType >::Type _tag_; // The name is mangled to avoid clashing with fields
private:
typename ::uavcan::StorageType< TagType >::Type _tag_; // The name is mangled to avoid clashing with fields
public:
% endif