object-introspection/test/integration/alignment.toml

# Test cases are repeated with a custom wrapper class as well as with a
# container, as CodeGen is not able to add padding members to container types.
includes = ["optional"]
definitions = '''
  // This wrapper will allow us to infer the alignment of the contained type by
  // looking at the wrapper's size.
  template <typename T>
  struct Wrapper {
    int8_t c;
    T t;
  };

  struct alignas(16) Align16 {
    char c;
  };

  struct TwoStruct {
    Align16 x1;
    char c;
    Align16 x2;
  };

  struct MemberAlignment {
    char c;
    alignas(32) char c32;
  };

  struct MemberAlignmentOverriden {
    char c;
    alignas(32) Align16 alignmentIncreased;
  };

  struct alignas(128) AlignedStructMemberAlignLower {
    char c;
    alignas(32) char c32;
  };

  enum class alignas(16) AlignedEnum16 : int8_t {
    Val1,
    Val2,
    Val3,
  };
'''
[cases]
  [cases.wrapper_struct]
    param_types = ["const Wrapper<Align16>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 32, "exclusiveSize": 15, "members": [
        {"typeName": "int8_t", "staticSize": 1, "exclusiveSize": 1},
        {"typeName": "Align16", "staticSize": 16, "exclusiveSize": 15, "members": [
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}
    ]}]}]'''
  [cases.container_struct]
    skip = "container alignment is broken (#143)"
    param_types = ["const std::optional<Align16>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 32, "exclusiveSize": 16, "members": [
        {"typeName": "Align16", "staticSize": 16, "exclusiveSize": 15, "members": [
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}
    ]}]}]'''
  [cases.wrapper_two_members]
    param_types = ["const Wrapper<TwoStruct>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 64, "exclusiveSize": 15, "members": [
        {"typeName": "int8_t", "staticSize": 1, "exclusiveSize": 1},
        {"typeName": "TwoStruct", "staticSize": 48, "exclusiveSize": 15, "members": [
          {"typeName": "Align16", "staticSize": 16, "exclusiveSize": 15, "members": [
            {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}]},
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1},
          {"typeName": "Align16", "staticSize": 16, "exclusiveSize": 15, "members": [
            {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}]}
    ]}]}]'''
  [cases.container_two_members]
    skip = "container alignment is broken (#143)"
    param_types = ["const std::optional<TwoStruct>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 64, "exclusiveSize": 16, "members": [
        {"typeName": "TwoStruct", "staticSize": 48, "exclusiveSize": 15, "members": [
          {"typeName": "Align16", "staticSize": 16, "exclusiveSize": 15, "members": [
            {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}]},
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1},
          {"typeName": "Align16", "staticSize": 16, "exclusiveSize": 15, "members": [
            {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}]}
    ]}]}]'''
  [cases.wrapper_member_alignment]
    param_types = ["const Wrapper<MemberAlignment>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 96, "exclusiveSize": 31, "members": [
        {"typeName": "int8_t", "staticSize": 1, "exclusiveSize": 1},
        {"typeName": "MemberAlignment", "staticSize": 64, "exclusiveSize": 62, "members": [
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1},
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}
    ]}]}]'''
  [cases.container_member_alignment]
    skip = "container alignment is broken (#143)"
    param_types = ["const std::optional<MemberAlignment>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 96, "exclusiveSize": 32, "members": [
        {"typeName": "MemberAlignment", "staticSize": 64, "exclusiveSize": 62, "members": [
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1},
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}
    ]}]}]'''
  [cases.wrapper_member_override]
    param_types = ["const Wrapper<MemberAlignmentOverriden>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 96, "exclusiveSize": 31, "members": [
        {"typeName": "int8_t", "staticSize": 1, "exclusiveSize": 1},
        {"typeName": "MemberAlignmentOverriden", "staticSize": 64, "exclusiveSize": 47, "members": [
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1},
          {"typeName": "Align16", "staticSize": 16, "exclusiveSize": 15, "members": [
            {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}
    ]}]}]}]'''
  [cases.container_member_override]
    skip = "container alignment is broken (#143)"
    param_types = ["const std::optional<MemberAlignmentOverriden>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 96, "exclusiveSize": 32, "members": [
        {"typeName": "MemberAlignmentOverriden", "staticSize": 64, "exclusiveSize": 47, "members": [
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1},
          {"typeName": "Align16", "staticSize": 16, "exclusiveSize": 15, "members": [
            {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}
    ]}]}]}]'''
  [cases.wrapper_member_lower]
    param_types = ["const Wrapper<AlignedStructMemberAlignLower>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 256, "exclusiveSize": 127, "members": [
        {"typeName": "int8_t", "staticSize": 1, "exclusiveSize": 1},
        {"typeName": "AlignedStructMemberAlignLower", "staticSize": 128, "exclusiveSize": 126, "members": [
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1},
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}
    ]}]}]'''
  [cases.container_member_lower]
    skip = "container alignment is broken (#143)"
    param_types = ["const std::optional<AlignedStructMemberAlignLower>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 256, "exclusiveSize": 128, "members": [
        {"typeName": "AlignedStructMemberAlignLower", "staticSize": 128, "exclusiveSize": 126, "members": [
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1},
          {"typeName": "char", "staticSize": 1, "exclusiveSize": 1}
    ]}]}]'''
  [cases.wrapper_enum]
    param_types = ["const Wrapper<AlignedEnum16>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 32, "exclusiveSize": 30, "members": [
        {"typeName": "int8_t", "staticSize": 1, "exclusiveSize": 1},
        {"typeName": "AlignedEnum16", "staticSize": 1, "exclusiveSize": 1}
    ]}]'''
  [cases.container_enum]
    skip = "container alignment is broken (#143)"
    param_types = ["const std::optional<AlignedEnum16>&"]
    setup = "return {};"
    expect_json = '''[
      {"staticSize": 32, "exclusiveSize": 31, "members": [
        {"typeName": "AlignedEnum16", "staticSize": 1, "exclusiveSize": 1}
    ]}]'''