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Add 'xo-reflect/' from commit '5dce303fe1'

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git-subtree-dir: xo-reflect
git-subtree-mainline: 8111f3846c
git-subtree-split: 5dce303fe1
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Roland Conybeare 2025-05-10 20:21:40 -05:00
commit 820f431d66
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xo-reflect/utest/StructReflector.test.cpp Normal file
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/* file StructReflector.test.cpp
*
* author: Roland Conybeare, Aug 2022
*/
#include "xo/reflect/Reflect.hpp"
#include "xo/reflect/StructReflector.hpp"
#include <catch2/catch.hpp>
#define STRINGIFY(x) #x
namespace xo {
using xo::reflect::Reflect;
using xo::reflect::TaggedPtr;
using xo::reflect::StructReflector;
using xo::reflect::Reflect;
namespace ut {
namespace {
struct TestStruct0 {};
struct TestStruct1 {};
}
TEST_CASE("struct-reflect-empty", "[reflect]") {
StructReflector<TestStruct1> sr;
REQUIRE(Reflect::is_reflected<TestStruct0>() == false);
REQUIRE(Reflect::is_reflected<TestStruct1>() == true);
TestStruct0 recd0;
TaggedPtr tp = Reflect::make_tp(&recd0);
REQUIRE(tp.address() == &recd0);
REQUIRE(tp.td() == Reflect::require<TestStruct0>());
REQUIRE(tp.n_child() == 0);
REQUIRE(tp.get_child(0).is_universal_null());
REQUIRE(tp.get_child(0).td() == nullptr);
REQUIRE(tp.get_child(0).address() == nullptr);
} /*TEST_CASE(struct-reflect-empty)*/
namespace {
struct TestStructS1 { int x_; };
}
TEST_CASE("struct-reflect-s1", "[reflect]") {
StructReflector<TestStructS1> sr;
REQUIRE(Reflect::is_reflected<TestStructS1>() == true);
//sr.reflect_member(STRINGIFY(x_), &decltype(sr)::struct_t::x_);
REFLECT_LITERAL_MEMBER(sr, x_);
REQUIRE(!Reflect::require<TestStructS1>()->is_struct());
sr.require_complete();
REQUIRE(Reflect::require<TestStructS1>()->is_struct());
} /*TEST_CASE(struct-reflect-s1)*/
namespace {
struct TestStructS2 { int x_; };
}
TEST_CASE("struct-reflect-s2", "[reflect]") {
StructReflector<TestStructS2> sr;
REQUIRE(Reflect::is_reflected<TestStructS2>() == true);
//sr.reflect_member(STRINGIFY(x_), &decltype(sr)::struct_t::x_);
REFLECT_MEMBER(sr, x);
REQUIRE(!Reflect::require<TestStructS2>()->is_struct());
sr.require_complete();
REQUIRE(Reflect::require<TestStructS2>()->is_struct());
TestStructS2 recd1{666};
TaggedPtr tp = Reflect::make_tp(&recd1);
REQUIRE(tp.address() == &recd1);
REQUIRE(tp.td() == Reflect::require<TestStructS2>());
REQUIRE(tp.n_child() == 1);
REQUIRE(tp.get_child(0).td() == Reflect::require<int>());
REQUIRE(tp.get_child(0).address() == &(recd1.x_));
REQUIRE(tp.get_child(1).is_universal_null());
} /*TEST_CASE(struct-reflect-s2)*/
namespace {
struct TestStructS3 { int x_; char y_; double z_; };
}
TEST_CASE("struct-reflect-s3", "[reflect]") {
StructReflector<TestStructS3> sr;
REQUIRE(Reflect::is_reflected<TestStructS3>() == true);
REFLECT_MEMBER(sr, x);
REFLECT_MEMBER(sr, y);
REFLECT_MEMBER(sr, z);
REQUIRE(!Reflect::require<TestStructS3>()->is_struct());
sr.require_complete();
REQUIRE(Reflect::require<TestStructS3>()->is_struct());
/* verify we can traverse reflected instances */
TestStructS3 recd1{666, 'Y', -1.234};
TaggedPtr tp = Reflect::make_tp(&recd1);
REQUIRE(tp.address() == &recd1);
REQUIRE(tp.td() == Reflect::require<TestStructS3>());
REQUIRE(tp.n_child() == 3);
REQUIRE(tp.get_child(0).td() == Reflect::require<int>());
REQUIRE(tp.get_child(0).address() == &(recd1.x_));
REQUIRE(tp.get_child(1).td() == Reflect::require<char>());
REQUIRE(tp.get_child(1).address() == &(recd1.y_));
REQUIRE(tp.get_child(2).td() == Reflect::require<double>());
REQUIRE(tp.get_child(2).address() == &(recd1.z_));
REQUIRE(tp.get_child(3).is_universal_null());
REQUIRE(tp.get_child(3).td() == nullptr);
REQUIRE(tp.get_child(3).address() == nullptr);
} /*TEST_CASE(struct-reflect-s3)*/
} /*namespace ut */
} /*namespace xo*/
/* end StructReflector.test.cpp */