object-introspection/test/integration/thrift_unions.toml

# TODO: The dynamic union tests should be updated when tagged union support is in:
# https://github.com/facebookexperimental/object-introspection/issues/234
thrift_definitions = '''
  union StaticUnion {
    1: i32 a;
    2: i32 b;
    3: i32 c;
  }

  union DynamicUnion {
    1: i32 n;
    2: list<i32> vec;
  }
'''
raw_definitions = '''
namespace cpp2 {
  void StaticUnion::__fbthrift_clear() {}
  void DynamicUnion::__fbthrift_clear() {}
}
'''

[cases]
  [cases.static]
    param_types = ["const cpp2::StaticUnion&"]
    setup = '''
      cpp2::StaticUnion ret;
      return ret;
    '''
    expect_json = '''[{
      "staticSize":8,
      "dynamicSize":0,
      "members":[
        {"typeName":"storage_type", "name":"value_", "staticSize":4},
        {"typeName":"underlying_type_t<cpp2::StaticUnion::Type>", "name":"type_", "staticSize":4}
      ]}]'''
  [cases.dynamic_int]
    param_types = ["const cpp2::DynamicUnion&"]
    setup = '''
      cpp2::DynamicUnion ret;
      ret.set_n(123);
      return ret;
    '''
    expect_json = '''[{
      "staticSize":32,
      "dynamicSize":0,
      "members":[
        {"typeName":"storage_type", "name":"value_", "staticSize":24},
        {"typeName":"underlying_type_t<cpp2::DynamicUnion::Type>", "name":"type_", "staticSize":4}
      ]}]'''
  [cases.dynamic_vec]
    param_types = ["const cpp2::DynamicUnion&"]
    setup = '''
      cpp2::DynamicUnion ret;
      ret.set_vec({1,2,3});
      return ret;
    '''
    expect_json = '''[{
      "staticSize":32,
      "dynamicSize":0,
      "members":[
        {"typeName":"storage_type", "name":"value_", "staticSize":24},
        {"typeName":"underlying_type_t<cpp2::DynamicUnion::Type>", "name":"type_", "staticSize":4}
      ]}]'''