definitions = '''
  struct Foo10 {
    int arr[10];
  };

  #pragma clang diagnostic push
  #pragma clang diagnostic ignored "-Wzero-length-array"
  struct Foo0 {
    int arr[0];
  };

  using ZeroLengthIntArray = int[0];
  #pragma clang diagnostic pop

  struct MultiDim {
    int arr[2][3];
  };
'''
[cases]
  [cases.member_int10]
    param_types = ["const Foo10&"]
    setup = "return {};"
    expect_json = '''[{
      "staticSize":40,
      "dynamicSize":0,
      "members":[{
        "staticSize":40,
        "dynamicSize":0,
        "length":10,
        "capacity":10,
        "elementStaticSize":4
      }]}]'''
    expect_json_v2 = '''[{
      "staticSize":40,
      "exclusiveSize":0,
      "members":[{
        "staticSize":40,
        "exclusiveSize":0,
        "length":10,
        "capacity":10
      }]}]'''
  [cases.member_int0]
    oil_skip = 'zero length arrays fail codegen v2' # https://github.com/facebookexperimental/object-introspection/issues/295
    # WARNING: zero-length arrays are handled differently to non-empty arrays.
    # They end up not being treated as containers. This should probably change
    # in the future.
    param_types = ["const Foo0&"]
    setup = "return {};"
    expect_json = '''[{
      "staticSize":0,
      "dynamicSize":0,
      "members":[{
        "staticSize":0,
        "dynamicSize":0
      }]}]'''
    expect_json_v2 = '''[{
      "staticSize":1,
      "exclusiveSize":1,
      "members":[{
        "staticSize":0,
        "exclusiveSize":0
      }]}]'''
  [cases.multidim_legacy] # Test for legacy behaviour. Remove with OICodeGen
    oil_disable = 'oil only runs on codegen v2'
    cli_options = ["-Ftype-graph", "-Ftyped-data-segment", "-Ftree-builder-type-checking", "-Ftree-builder-v2"]
    param_types = ["const MultiDim&"]
    setup = "return {};"
    expect_json = '''[{
      "staticSize":24,
      "dynamicSize":0,
      "members":[{
        "staticSize":24,
        "dynamicSize":0,
        "length":6,
        "capacity":6,
        "elementStaticSize":4
      }]}]'''
  [cases.multidim]
    cli_options = ["-ftype-graph"]
    param_types = ["const MultiDim&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize":24, "dynamicSize":0, "exclusiveSize":0, "members":[
        {"staticSize":24, "dynamicSize":0, "exclusiveSize":0, "length":2, "capacity":2, "elementStaticSize":12, "members":[
          {"staticSize":12, "dynamicSize":0, "exclusiveSize":12, "length":3, "capacity":3, "elementStaticSize":4},
          {"staticSize":12, "dynamicSize":0, "exclusiveSize":12, "length":3, "capacity":3, "elementStaticSize":4}]
      }]}]'''
    expect_json_v2 = '''[
      {"staticSize":24, "exclusiveSize":0, "members":[
        {"staticSize":24, "exclusiveSize":0, "length":2, "capacity":2, "members":[
          {"staticSize":12, "exclusiveSize":0, "length":3, "capacity":3},
          {"staticSize":12, "exclusiveSize":0, "length":3, "capacity":3}]
      }]}]'''
  [cases.direct_int10]
    skip = "Direct array arguments don't work"
    param_types = ["int[10]"]
    setup = "return {};"
    expect_json = '[{"staticSize":40, "dynamicSize":0, "length":10, "capacity":10, "elementStaticSize":4}]'
  [cases.direct_int0]
    skip = "Direct array arguments don't work"
    # WARNING: zero-length arrays are handled differently to non-empty arrays.
    # They end up not being treated as containers. This should probably change
    # in the future.
    param_types = ["ZeroLengthIntArray"]
    setup = "return {};"
    expect_json = '[{"staticSize":0, "dynamicSize":0}]'
  [cases.ref_int10]
    skip = "CodeGen bug with array reference arguments"
    param_types = ["const int(&)[10]"]
    setup = "return {};"
    expect_json = '[{"staticSize":40, "dynamicSize":0, "length":10, "capacity":10, "elementStaticSize":4}]'
  [cases.ref_int0]
    skip = "CodeGen bug with array reference arguments"
    # WARNING: zero-length arrays are handled differently to non-empty arrays.
    # They end up not being treated as containers. This should probably change
    # in the future.
    param_types = ["const ZeroLengthIntArray&"]
    setup = "return {};"
    expect_json = '[{"staticSize":0, "dynamicSize":0}]'