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https://github.com/JakeHillion/object-introspection.git
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oil: add support for std::list
Summary: Remove the now useless `handler` and adds the `traversal_func` and `processor` entries for `std::list`. This type is a bit weird as most of our sequential containers don't have any overhead on storing the element. I went for the same approach we take for maps where we have a shared `[]` element covering the map overhead and below that a `key` & `value`. As we only have a single element under it which doesn't have a logical name I went for `*`. Closes #315. Test Plan: - CI - Copied the relevant `std::vector` tests and updated the existing one.
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Jake Hillion
parent
3871d92abb
commit
e9d8df0ca4
59
test/integration/std_list.toml
Normal file
59
test/integration/std_list.toml
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@ -0,0 +1,59 @@
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includes = ["list"]
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definitions = '''
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struct SimpleStruct {
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int a;
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char b;
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long long c;
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};
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'''
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[cases]
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[cases.int_empty]
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param_types = ["const std::list<int>&"]
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setup = "return {};"
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expect_json = '[{"staticSize":24, "dynamicSize":0, "length":0, "capacity":0, "elementStaticSize":4}]'
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expect_json_v2 = '[{"staticSize":24, "exclusiveSize":24, "length":0, "capacity":0, "members":[]}]'
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[cases.int_some]
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param_types = ["const std::list<int>&"]
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setup = "return {{1,2,3}};"
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expect_json = '[{"staticSize":24, "dynamicSize":12, "length":3, "capacity":3, "elementStaticSize":4}]'
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expect_json_v2 = '''[{"staticSize":24, "exclusiveSize":24, "length":3, "capacity":3, "members":[
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{"staticSize":4, "exclusiveSize":4},
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{"staticSize":4, "exclusiveSize":4},
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{"staticSize":4, "exclusiveSize":4}
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]}]'''
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[cases.struct_some]
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param_types = ["const std::list<SimpleStruct>&"]
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setup = "return {{{}, {}, {}}};"
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expect_json = '[{"staticSize":24, "dynamicSize":48, "length":3, "capacity":3, "elementStaticSize":16}]'
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expect_json_v2 = '''[{"staticSize":24, "exclusiveSize":24, "length":3, "capacity":3, "members":[
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{"staticSize":16, "exclusiveSize":3},
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{"staticSize":16, "exclusiveSize":3},
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{"staticSize":16, "exclusiveSize":3}
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]}]'''
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[cases.list_int_empty]
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param_types = ["const std::list<std::list<int>>&"]
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setup = "return {};"
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expect_json = '[{"staticSize":24, "dynamicSize":0, "length":0, "capacity":0, "elementStaticSize":24}]'
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expect_json_v2 = '[{"staticSize":24, "exclusiveSize":24, "length":0, "capacity":0, "members":[]}]'
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[cases.list_int_some]
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param_types = ["const std::list<std::list<int>>&"]
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setup = "return {{{1,2,3},{4},{5,6}}};"
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expect_json = '''[{
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"staticSize":24,
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"dynamicSize":96,
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"exclusiveSize":24,
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"length":3,
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"capacity":3,
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"elementStaticSize":24,
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"members":[
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{"staticSize":24, "dynamicSize":12, "exclusiveSize":36, "length":3, "capacity":3, "elementStaticSize":4},
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{"staticSize":24, "dynamicSize":4, "exclusiveSize":28, "length":1, "capacity":1, "elementStaticSize":4},
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{"staticSize":24, "dynamicSize":8, "exclusiveSize":32, "length":2, "capacity":2, "elementStaticSize":4}
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]}]'''
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expect_json_v2 = '''[{"staticSize":24, "exclusiveSize":24, "length":3, "capacity": 3, "members":[
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{"staticSize":24, "exclusiveSize":24, "length":3, "capacity": 3, "members":[]},
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{"staticSize":24, "exclusiveSize":24, "length":1, "capacity": 1, "members":[]},
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{"staticSize":24, "exclusiveSize":24, "length":2, "capacity": 2, "members":[]}
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]}]'''
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@ -27,7 +27,6 @@ includes = ["list"]
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[cases]
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[cases.a]
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oil_skip = 'not implemented for treebuilder v2' # https://github.com/facebookexperimental/object-introspection/issues/315
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param_types = ["const Foo&"]
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setup = '''
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Foo foo;
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@ -58,3 +57,10 @@ includes = ["list"]
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]}
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]}
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]}]'''
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expect_json_v2 = '''[{
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"staticSize": 48,
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"exclusiveSize": 0,
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"members": [
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{"name": "v1", "staticSize": 24, "exclusiveSize": 24, "length": 1, "capacity": 1},
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{"name": "v2", "staticSize": 24, "exclusiveSize": 24, "length": 2, "capacity": 2}
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]}]'''
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@ -1,10 +1,10 @@
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[info]
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type_name = "std::__cxx11::list"
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stub_template_params = [1]
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ctype = "LIST_TYPE"
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header = "list"
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# Old:
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ctype = "LIST_TYPE"
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typeName = "std::__cxx11::list"
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ns = ["namespace std"]
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numTemplateParams = 1
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@ -33,28 +33,53 @@ void getSizeType(const %1%<T, Allocator> &container, size_t& returnArg)
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}
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"""
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handler = """
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template <typename DB, typename T0, typename T1>
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struct TypeHandler<DB, %1% <T0, T1>> {
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using type = types::st::Pair<DB,
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types::st::VarInt<DB>,
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types::st::List<DB, typename TypeHandler<DB, T0>::type>>;
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traversal_func = """
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auto tail = returnArg.write((uintptr_t)&container)
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.write(container.size());
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static types::st::Unit<DB> getSizeType(
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const %1% <T0, T1> & container,
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typename TypeHandler<DB, %1% <T0, T1>>::type returnArg) {
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auto tail = returnArg.write((uintptr_t)&container)
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.write(container.size());
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for (auto&& it : container) {
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tail = tail.delegate([&it](auto ret) {
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return OIInternal::getSizeType<DB>(it, ret);
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});
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}
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// The double ampersand is needed otherwise this loop doesn't work with
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// vector<bool>
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for (auto&& it : container) {
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tail = tail.delegate([&it](auto ret) {
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return OIInternal::getSizeType<DB>(it, ret);
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});
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}
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return tail.finish();
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}
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};
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return tail.finish();
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"""
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[[codegen.processor]]
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type = "types::st::VarInt<DB>"
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func = """
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el.pointer = std::get<ParsedData::VarInt>(d.val).value;
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"""
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[[codegen.processor]]
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type = "types::st::List<DB, typename TypeHandler<DB, T0>::type>"
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func = """
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#ifdef __GLIBCXX__
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static constexpr size_t element_size = sizeof(std::_List_node<T0>);
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#else
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static_assert(false && "No known element_size for list. See types/cxx11_list_type.toml");
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#endif
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static constexpr std::array<inst::Field, 1> child_field{
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make_field<DB, T0>("*"),
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};
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static constexpr inst::Field element{
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element_size,
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element_size - sizeof(T0),
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"[]",
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std::array<std::string_view, 0>{},
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child_field,
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std::array<inst::ProcessorInst, 0>{},
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};
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static constexpr auto childField = make_field<DB, T0>("[]");
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auto list = std::get<ParsedData::List>(d.val);
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el.container_stats.emplace(result::Element::ContainerStats{
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.capacity = list.length,
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.length = list.length,
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});
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el.exclusive_size += (el.container_stats->capacity - el.container_stats->length) * sizeof(T0);
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stack_ins(inst::Repeat{ list.length, childField });
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"""
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@ -33,28 +33,53 @@ void getSizeType(const %1%<T, Allocator> &container, size_t& returnArg)
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}
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"""
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handler = """
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template <typename DB, typename T0, typename T1>
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struct TypeHandler<DB, %1% <T0, T1>> {
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using type = types::st::Pair<DB,
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types::st::VarInt<DB>,
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types::st::List<DB, typename TypeHandler<DB, T0>::type>>;
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traversal_func = """
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auto tail = returnArg.write((uintptr_t)&container)
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.write(container.size());
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static types::st::Unit<DB> getSizeType(
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const %1% <T0, T1> & container,
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typename TypeHandler<DB, %1% <T0, T1>>::type returnArg) {
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auto tail = returnArg.write((uintptr_t)&container)
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.write(container.size());
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for (auto&& it : container) {
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tail = tail.delegate([&it](auto ret) {
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return OIInternal::getSizeType<DB>(it, ret);
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});
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}
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// The double ampersand is needed otherwise this loop doesn't work with
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// vector<bool>
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for (auto&& it : container) {
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tail = tail.delegate([&it](auto ret) {
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return OIInternal::getSizeType<DB>(it, ret);
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});
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}
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return tail.finish();
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}
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};
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return tail.finish();
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"""
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[[codegen.processor]]
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type = "types::st::VarInt<DB>"
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func = """
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el.pointer = std::get<ParsedData::VarInt>(d.val).value;
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"""
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[[codegen.processor]]
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type = "types::st::List<DB, typename TypeHandler<DB, T0>::type>"
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func = """
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#ifdef __GLIBCXX__
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static constexpr size_t element_size = sizeof(std::_List_node<T0>);
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#else
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static_assert(false && "No known element_size for list. See types/cxx11_list_type.toml");
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#endif
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static constexpr std::array<inst::Field, 1> child_field{
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make_field<DB, T0>("*"),
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};
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static constexpr inst::Field element{
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element_size,
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element_size - sizeof(T0),
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"[]",
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std::array<std::string_view, 0>{},
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child_field,
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std::array<inst::ProcessorInst, 0>{},
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};
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static constexpr auto childField = make_field<DB, T0>("[]");
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auto list = std::get<ParsedData::List>(d.val);
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el.container_stats.emplace(result::Element::ContainerStats{
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.capacity = list.length,
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.length = list.length,
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});
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el.exclusive_size += (el.container_stats->capacity - el.container_stats->length) * sizeof(T0);
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stack_ins(inst::Repeat{ list.length, childField });
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"""
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