tomato-testing/test/entt/meta/meta_context.cpp
Green Sky 5c7231b7a3 Squashed 'external/entt/entt/' content from commit fef92113
git-subtree-dir: external/entt/entt
git-subtree-split: fef921132cae7588213d0f9bcd2fb9c8ffd8b7fc
2023-07-25 11:29:51 +02:00

506 lines
15 KiB
C++

#include <unordered_map>
#include <vector>
#include <gtest/gtest.h>
#include <entt/core/hashed_string.hpp>
#include <entt/meta/container.hpp>
#include <entt/meta/context.hpp>
#include <entt/meta/factory.hpp>
#include <entt/meta/pointer.hpp>
#include <entt/meta/template.hpp>
struct base {
base() = default;
base(char v)
: value{v} {}
char get() const {
return value;
}
char value;
};
struct clazz: base {
clazz() = default;
clazz(int v)
: base{},
value{v} {}
clazz(char c, int v)
: base{c},
value{v} {}
int func(int v) {
return (value = v);
}
int cfunc(int v) const {
return v;
}
static void move_to_bucket(const clazz &instance) {
bucket = instance.value;
}
int value{};
static inline int bucket{};
};
struct local_only {};
struct argument {
argument(int val)
: value{val} {}
int get() const {
return value;
}
int get_mul() const {
return value * 2;
}
private:
int value{};
};
template<typename...>
struct template_clazz {};
class MetaContext: public ::testing::Test {
void init_global_context() {
using namespace entt::literals;
entt::meta<int>()
.data<global_marker>("marker"_hs);
entt::meta<argument>()
.conv<&argument::get>();
entt::meta<clazz>()
.type("foo"_hs)
.prop("prop"_hs, prop_value)
.ctor<int>()
.data<&clazz::value>("value"_hs)
.data<&clazz::value>("rw"_hs)
.func<&clazz::func>("func"_hs);
entt::meta<template_clazz<int>>()
.type("template"_hs);
}
void init_local_context() {
using namespace entt::literals;
entt::meta<int>(context)
.data<local_marker>("marker"_hs);
entt::meta<local_only>(context)
.type("quux"_hs);
entt::meta<argument>(context)
.conv<&argument::get_mul>();
entt::meta<base>(context)
.data<&base::value>("char"_hs)
.func<&base::get>("get"_hs);
entt::meta<clazz>(context)
.type("bar"_hs)
.prop("prop"_hs, prop_value)
.base<base>()
.ctor<char, int>()
.dtor<&clazz::move_to_bucket>()
.data<nullptr, &clazz::value>("value"_hs)
.data<&clazz::value>("rw"_hs)
.func<&clazz::cfunc>("func"_hs);
entt::meta<template_clazz<int, char>>(context)
.type("template"_hs);
}
public:
void SetUp() override {
init_global_context();
init_local_context();
clazz::bucket = bucket_value;
}
void TearDown() override {
entt::meta_reset(context);
entt::meta_reset();
}
protected:
static constexpr int global_marker = 1;
static constexpr int local_marker = 42;
static constexpr int bucket_value = 99;
static constexpr int prop_value = 3;
entt::meta_ctx context{};
};
TEST_F(MetaContext, Resolve) {
using namespace entt::literals;
ASSERT_TRUE(entt::resolve<clazz>());
ASSERT_TRUE(entt::resolve<clazz>(context));
ASSERT_TRUE(entt::resolve<local_only>());
ASSERT_TRUE(entt::resolve<local_only>(context));
ASSERT_TRUE(entt::resolve(entt::type_id<clazz>()));
ASSERT_TRUE(entt::resolve(context, entt::type_id<clazz>()));
ASSERT_FALSE(entt::resolve(entt::type_id<local_only>()));
ASSERT_TRUE(entt::resolve(context, entt::type_id<local_only>()));
ASSERT_TRUE(entt::resolve("foo"_hs));
ASSERT_FALSE(entt::resolve(context, "foo"_hs));
ASSERT_FALSE(entt::resolve("bar"_hs));
ASSERT_TRUE(entt::resolve(context, "bar"_hs));
ASSERT_FALSE(entt::resolve("quux"_hs));
ASSERT_TRUE(entt::resolve(context, "quux"_hs));
ASSERT_EQ((std::distance(entt::resolve().cbegin(), entt::resolve().cend())), 4);
ASSERT_EQ((std::distance(entt::resolve(context).cbegin(), entt::resolve(context).cend())), 6);
}
TEST_F(MetaContext, MetaType) {
using namespace entt::literals;
const auto global = entt::resolve<clazz>();
const auto local = entt::resolve<clazz>(context);
ASSERT_TRUE(global);
ASSERT_TRUE(local);
ASSERT_NE(global, local);
ASSERT_EQ(global, entt::resolve("foo"_hs));
ASSERT_EQ(local, entt::resolve(context, "bar"_hs));
ASSERT_EQ(global.id(), "foo"_hs);
ASSERT_EQ(local.id(), "bar"_hs);
clazz instance{'c', 99};
const argument value{2};
ASSERT_NE(instance.value, value.get());
ASSERT_EQ(global.invoke("func"_hs, instance, value).cast<int>(), value.get());
ASSERT_EQ(instance.value, value.get());
ASSERT_NE(instance.value, value.get_mul());
ASSERT_EQ(local.invoke("func"_hs, instance, value).cast<int>(), value.get_mul());
ASSERT_NE(instance.value, value.get_mul());
ASSERT_FALSE(global.invoke("get"_hs, instance));
ASSERT_EQ(local.invoke("get"_hs, instance).cast<char>(), 'c');
}
TEST_F(MetaContext, MetaBase) {
const auto global = entt::resolve<clazz>();
const auto local = entt::resolve<clazz>(context);
ASSERT_EQ((std::distance(global.base().cbegin(), global.base().cend())), 0);
ASSERT_EQ((std::distance(local.base().cbegin(), local.base().cend())), 1);
ASSERT_EQ(local.base().cbegin()->second.info(), entt::type_id<base>());
ASSERT_FALSE(entt::resolve(entt::type_id<base>()));
ASSERT_TRUE(entt::resolve(context, entt::type_id<base>()));
}
TEST_F(MetaContext, MetaData) {
using namespace entt::literals;
const auto global = entt::resolve<clazz>();
const auto local = entt::resolve<clazz>(context);
ASSERT_TRUE(global.data("value"_hs));
ASSERT_TRUE(local.data("value"_hs));
ASSERT_FALSE(global.data("value"_hs).is_const());
ASSERT_TRUE(local.data("value"_hs).is_const());
ASSERT_EQ(global.data("value"_hs).type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.data("value"_hs).type().data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ(global.data("rw"_hs).arg(0u).data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.data("rw"_hs).arg(0u).data("marker"_hs).get({}).cast<int>(), local_marker);
clazz instance{'c', 99};
const argument value{2};
ASSERT_NE(instance.value, value.get());
ASSERT_TRUE(global.data("rw"_hs).set(instance, value));
ASSERT_EQ(instance.value, value.get());
ASSERT_NE(instance.value, value.get_mul());
ASSERT_TRUE(local.data("rw"_hs).set(instance, value));
ASSERT_EQ(instance.value, value.get_mul());
ASSERT_FALSE(global.data("char"_hs));
ASSERT_EQ(local.data("char"_hs).get(instance).cast<char>(), 'c');
ASSERT_TRUE(local.data("char"_hs).set(instance, 'x'));
ASSERT_EQ(instance.base::value, 'x');
}
TEST_F(MetaContext, MetaFunc) {
using namespace entt::literals;
const auto global = entt::resolve<clazz>();
const auto local = entt::resolve<clazz>(context);
ASSERT_TRUE(global.func("func"_hs));
ASSERT_TRUE(local.func("func"_hs));
ASSERT_FALSE(global.func("func"_hs).is_const());
ASSERT_TRUE(local.func("func"_hs).is_const());
ASSERT_EQ(global.func("func"_hs).arg(0u).data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.func("func"_hs).arg(0u).data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ(global.func("func"_hs).ret().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.func("func"_hs).ret().data("marker"_hs).get({}).cast<int>(), local_marker);
clazz instance{'c', 99};
const argument value{2};
ASSERT_NE(instance.value, value.get());
ASSERT_EQ(global.func("func"_hs).invoke(instance, value).cast<int>(), value.get());
ASSERT_EQ(instance.value, value.get());
ASSERT_NE(instance.value, value.get_mul());
ASSERT_EQ(local.func("func"_hs).invoke(instance, value).cast<int>(), value.get_mul());
ASSERT_NE(instance.value, value.get_mul());
ASSERT_FALSE(global.func("get"_hs));
ASSERT_EQ(local.func("get"_hs).invoke(instance).cast<char>(), 'c');
}
TEST_F(MetaContext, MetaCtor) {
const auto global = entt::resolve<clazz>();
const auto local = entt::resolve<clazz>(context);
auto any = global.construct();
auto other = local.construct();
ASSERT_TRUE(any);
ASSERT_TRUE(other);
ASSERT_EQ(any.cast<const clazz &>().value, 0);
ASSERT_EQ(other.cast<const clazz &>().value, 0);
argument argument{2};
any = global.construct(argument);
other = local.construct(argument);
ASSERT_TRUE(any);
ASSERT_FALSE(other);
ASSERT_EQ(any.cast<const clazz &>().value, 2);
any = global.construct('c', argument);
other = local.construct('c', argument);
ASSERT_FALSE(any);
ASSERT_TRUE(other);
ASSERT_EQ(other.cast<const clazz &>().value, 4);
}
TEST_F(MetaContext, MetaConv) {
argument value{2};
auto global = entt::forward_as_meta(value);
auto local = entt::forward_as_meta(context, value);
ASSERT_TRUE(global.allow_cast<int>());
ASSERT_TRUE(local.allow_cast<int>());
ASSERT_EQ(global.cast<int>(), value.get());
ASSERT_EQ(local.cast<int>(), value.get_mul());
}
TEST_F(MetaContext, MetaDtor) {
auto global = entt::resolve<clazz>().construct();
auto local = entt::resolve<clazz>(context).construct();
ASSERT_EQ(clazz::bucket, bucket_value);
global.reset();
ASSERT_EQ(clazz::bucket, bucket_value);
local.reset();
ASSERT_NE(clazz::bucket, bucket_value);
}
TEST_F(MetaContext, MetaProp) {
using namespace entt::literals;
const auto global = entt::resolve<clazz>();
const auto local = entt::resolve<clazz>(context);
ASSERT_TRUE(global.prop("prop"_hs));
ASSERT_TRUE(local.prop("prop"_hs));
ASSERT_EQ(global.prop("prop"_hs).value().type(), entt::resolve<int>());
ASSERT_EQ(local.prop("prop"_hs).value().type(), entt::resolve<int>(context));
ASSERT_EQ(global.prop("prop"_hs).value().cast<int>(), prop_value);
ASSERT_EQ(local.prop("prop"_hs).value().cast<int>(), prop_value);
ASSERT_EQ(global.prop("prop"_hs).value().type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.prop("prop"_hs).value().type().data("marker"_hs).get({}).cast<int>(), local_marker);
}
TEST_F(MetaContext, MetaTemplate) {
using namespace entt::literals;
const auto global = entt::resolve("template"_hs);
const auto local = entt::resolve(context, "template"_hs);
ASSERT_TRUE(global.is_template_specialization());
ASSERT_TRUE(local.is_template_specialization());
ASSERT_EQ(global.template_arity(), 1u);
ASSERT_EQ(local.template_arity(), 2u);
ASSERT_EQ(global.template_arg(0u), entt::resolve<int>());
ASSERT_EQ(local.template_arg(0u), entt::resolve<int>(context));
ASSERT_EQ(local.template_arg(1u), entt::resolve<char>(context));
ASSERT_EQ(global.template_arg(0u).data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.template_arg(0u).data("marker"_hs).get({}).cast<int>(), local_marker);
}
TEST_F(MetaContext, MetaPointer) {
using namespace entt::literals;
int value = 42;
const entt::meta_any global{&value};
const entt::meta_any local{context, &value};
ASSERT_TRUE(global.type().is_pointer());
ASSERT_TRUE(local.type().is_pointer());
ASSERT_TRUE(global.type().is_pointer_like());
ASSERT_TRUE(local.type().is_pointer_like());
ASSERT_EQ((*global).type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ((*local).type().data("marker"_hs).get({}).cast<int>(), local_marker);
}
TEST_F(MetaContext, MetaAssociativeContainer) {
using namespace entt::literals;
std::unordered_map<int, int> map{{{0, 0}}};
auto global = entt::forward_as_meta(map).as_associative_container();
auto local = entt::forward_as_meta(context, map).as_associative_container();
ASSERT_TRUE(global);
ASSERT_TRUE(local);
ASSERT_EQ(global.size(), 1u);
ASSERT_EQ(local.size(), 1u);
ASSERT_EQ(global.key_type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.key_type().data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ(global.mapped_type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.mapped_type().data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ((*global.begin()).first.type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ((*local.begin()).first.type().data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ((*global.begin()).second.type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ((*local.begin()).second.type().data("marker"_hs).get({}).cast<int>(), local_marker);
}
TEST_F(MetaContext, MetaSequenceContainer) {
using namespace entt::literals;
std::vector<int> vec{0};
auto global = entt::forward_as_meta(vec).as_sequence_container();
auto local = entt::forward_as_meta(context, vec).as_sequence_container();
ASSERT_TRUE(global);
ASSERT_TRUE(local);
ASSERT_EQ(global.size(), 1u);
ASSERT_EQ(local.size(), 1u);
ASSERT_EQ(global.value_type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.value_type().data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ((*global.begin()).type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ((*local.begin()).type().data("marker"_hs).get({}).cast<int>(), local_marker);
}
TEST_F(MetaContext, MetaAny) {
using namespace entt::literals;
entt::meta_any global{42};
entt::meta_any ctx_value{context, 42};
entt::meta_any in_place{context, std::in_place_type<int>, 42};
entt::meta_any two_step_local{entt::meta_ctx_arg, context};
ASSERT_TRUE(global);
ASSERT_TRUE(ctx_value);
ASSERT_TRUE(in_place);
ASSERT_FALSE(two_step_local);
two_step_local = 42;
ASSERT_TRUE(two_step_local);
ASSERT_EQ(global.type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(ctx_value.type().data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ(in_place.type().data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ(two_step_local.type().data("marker"_hs).get({}).cast<int>(), local_marker);
}
TEST_F(MetaContext, MetaHandle) {
using namespace entt::literals;
int value = 42;
entt::meta_handle global{value};
entt::meta_handle ctx_value{context, value};
entt::meta_handle two_step_local{entt::meta_ctx_arg, context};
ASSERT_TRUE(global);
ASSERT_TRUE(ctx_value);
ASSERT_FALSE(two_step_local);
two_step_local->emplace<int &>(value);
ASSERT_TRUE(two_step_local);
ASSERT_EQ(global->type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(ctx_value->type().data("marker"_hs).get({}).cast<int>(), local_marker);
ASSERT_EQ(two_step_local->type().data("marker"_hs).get({}).cast<int>(), local_marker);
}
TEST_F(MetaContext, ForwardAsMeta) {
using namespace entt::literals;
const auto global = entt::forward_as_meta(42);
const auto local = entt::forward_as_meta(context, 42);
ASSERT_TRUE(global);
ASSERT_TRUE(local);
ASSERT_EQ(global.type().data("marker"_hs).get({}).cast<int>(), global_marker);
ASSERT_EQ(local.type().data("marker"_hs).get({}).cast<int>(), local_marker);
}