make values capable of being a list & add boost

Signed-off-by: Folling <mail@folling.io>

.clang-format

@@ -87,24 +87,26 @@ IncludeCategories:
     Priority: 2
   - Regex: '^<[a-z0-9_]+>$'
     Priority: 3
-  - Regex: '^<expected/.*>$'
+  - Regex: '^<boost/.*>$'
     Priority: 4
-  - Regex: '^<fmt/.*>$'
+  - Regex: '^<expected/.*>$'
     Priority: 5
-  - Regex: '^<nlohmann/.*>$'
+  - Regex: '^<fmt/.*>$'
     Priority: 6
-  - Regex: '^<range-v3/.*>$'
+  - Regex: '^<nlohmann/.*>$'
     Priority: 7
-  - Regex: '^<catch2/.*>$'
+  - Regex: '^<range-v3/.*>$'
     Priority: 8
-  - Regex: '^<unicode/.*>$'
+  - Regex: '^<catch2/.*>$'
     Priority: 9
-  - Regex: '^<cppbase/.*>$'
+  - Regex: '^<unicode/.*>$'
     Priority: 10
-  - Regex: '^<sqlitecpp/.*>$'
+  - Regex: '^<cppbase/.*>$'
     Priority: 11
-  - Regex: '^<ikarus/.*>$'
+  - Regex: '^<sqlitecpp/.*>$'
     Priority: 12
+  - Regex: '^<ikarus/.*>$'
+    Priority: 13
 
 IndentAccessModifiers: false
 IndentCaseBlocks: false

CMakeLists.txt

@@ -14,6 +14,8 @@ add_subdirectory(vendor)
 add_subdirectory(include)
 add_subdirectory(src)
 
+find_package(Boost REQUIRED)
+
 add_library(
     libikarus SHARED
     ${INCLUDE_FILES}
@@ -34,6 +36,12 @@ target_link_libraries(
     libikarus PRIVATE
     cppbase
     sqlitecpp
+    ${Boost_LIBRARIES}
+)
+
+target_include_directories(
+    libikarus PRIVATE
+    ${Boost_INCLUDE_DIRS}
 )
 
 if (LIBIKARUS_ENABLE_LINTS)

include/ikarus/objects/properties/property.h

@@ -78,6 +78,14 @@ IKA_API IkarusPropertyType ikarus_property_get_type(IkarusProperty const * prope
 /// \remark Must be freed using #ikarus_free.
 IKA_API struct IkarusPropertySource const * ikarus_property_get_source(IkarusProperty const * property);
 
+/// \brief Gets the default value of a property.
+/// \param property The property to get the type info of.
+/// \pre \li Must not be null.
+/// \pre \li Must exist.
+/// \return The default value of the property or null if an error occurs.
+/// \remark Must be freed using #ikarus_free.
+IKA_API struct IkarusValue * ikarus_property_get_default_value(IkarusProperty const * property);
+
 /// \brief Visits a property. Calling the appropriate function for the property's type.
 /// \param property The property to visit.
 /// \pre \li Must not be null.

include/ikarus/values/number_value.h

@@ -4,42 +4,57 @@
 /// \author Folling <folling@ikarus.world>
 
 #include <ikarus/macros.h>
+#include <ikarus/stdtypes.h>
 
 /// \addtogroup values Values
 /// @{
 
 IKARUS_BEGIN_HEADER
 
-/// \brief A true/false boolean-like value. For example "IsDead".
+/// \brief A true/false long doubleean-esque value. For example "Is Dead".
 struct IkarusNumberValue;
 
-/// \brief Creates a number value from a long double.
+/// \brief Creates a number value from doubles.
-/// \param value The numeric value.
+/// \param data The number data or null if you wish to clear the data.
-/// \return The entity value.
+/// \details LibIkarus does not take ownership of this array.
+/// \param data_size The size of the data array or 0 if you wish to clear the data.
+/// \return The value.
 /// \remark Must be freed with #ikarus_free.
-IKA_API IkarusNumberValue * ikarus_number_value_create(long double value);
+IKA_API IkarusNumberValue * ikarus_number_value_create(long double * data, size_t data_size);
 
 /// \brief Creates an indeterminate number value.
-/// \return The entity value.
+/// \return The value.
 /// \remark Must be freed with #ikarus_free.
 IKA_API IkarusNumberValue * ikarus_number_value_create_indeterminate();
 
-/// \brief Fetches the underlying value of a number value.
+/// \brief Fetches the underlying data of a number value.
-/// \param value The number value.
+/// \details You may adjust the returned data as per your hearts desire.
-/// \return The underlying value.
+/// If you need to grow the data, use #ikarus_number_value_set with a new array.
-/// \warning Undefined if the value is indeterminate.
+/// Just remember that IkarusValues are plain objects, so changing them won't affect any state.
-IKA_API long double ikarus_number_value_get(IkarusNumberValue const * value);
+/// They will need to be submitted to other functions such as #ikarus_entity_set_value to have any effect.
-
-/// \brief Sets the value of a number value.
 /// \param value The number value.
 /// \pre \li Must not be null.
-/// \param new_value The new value.
+/// \param data_size_out An out-parameter for the size of the returned array.
-IKA_API void ikarus_number_value_set(IkarusNumberValue * value, bool new_value);
+/// \remark Ignored if null.
+/// \return The underlying data. Owned by LibIkarus, most not be freed.
+/// \warning Undefined if the value is indeterminate.
+IKA_API long double * ikarus_number_value_get(IkarusNumberValue * value, size_t * data_size_out);
+
+/// \see ikarus_number_value_get
+long double const * ikarus_number_value_get_const(IkarusNumberValue const * value, size_t * data_size_out);
+
+/// \brief Sets the data of a number value.
+/// \param value The number value.
+/// \pre \li Must not be null.
+/// \param new_data The new data or null if you wish to clear the data.
+/// \details LibIkarus does not take ownership of this array.
+/// \param new_data_size The size of the new data array or 0 if you wish to clear the data.
+IKA_API void ikarus_number_value_set(IkarusNumberValue * value, long double * new_data, size_t new_data_size);
 
 /// \brief Converts a number value to an entity value.
-/// \param number_value The number value to convert.
+/// \param value The number value to convert.
 /// \return The converted entity value.
-IKA_API struct IkarusValue * ikarus_number_value_to_value(IkarusNumberValue * number_value);
+IKA_API struct IkarusValue * ikarus_number_value_to_value(IkarusNumberValue * value);
 
 IKARUS_END_HEADER
 

include/ikarus/values/text_value.h

@@ -4,43 +4,57 @@
 /// \author Folling <folling@ikarus.world>
 
 #include <ikarus/macros.h>
+#include <ikarus/stdtypes.h>
 
 /// \addtogroup values Values
 /// @{
 
 IKARUS_BEGIN_HEADER
 
-/// \brief A true/false boolean-like value. For example "IsDead".
+/// \brief A true/false char const*ean-esque value. For example "Is Dead".
 struct IkarusTextValue;
 
-/// \brief Creates a text value from a boolean.
+/// \brief Creates a text value from doubles.
-/// \param value The text value.
+/// \param data The text data or null if you wish to clear the data.
-/// \return The entity value.
+/// \details LibIkarus does not take ownership of this array.
+/// \param data_size The size of the data array or 0 if you wish to clear the data.
+/// \return The value.
 /// \remark Must be freed with #ikarus_free.
-IKA_API IkarusTextValue * ikarus_text_value_create(char const * value);
+IKA_API IkarusTextValue * ikarus_text_value_create(char const ** data, size_t data_size);
 
 /// \brief Creates an indeterminate text value.
-/// \return The entity value.
+/// \return The value.
 /// \remark Must be freed with #ikarus_free.
 IKA_API IkarusTextValue * ikarus_text_value_create_indeterminate();
 
-/// \brief Fetches the underlying value of a text value.
+/// \brief Fetches the underlying data of a text value.
-/// \param value The text value.
+/// \details You may adjust the returned data as per your hearts desire.
-/// \return The underlying value.
+/// If you need to grow the data, use #ikarus_text_value_set with a new array.
-/// \warning Undefined if the value is indeterminate.
+/// Just remember that IkarusValues are plain objects, so changing them won't affect any state.
-/// \remark The value is owned by libikarus and must not be freed.
+/// They will need to be submitted to other functions such as #ikarus_entity_set_value to have any effect.
-IKA_API char const * ikarus_text_value_get_underlying(IkarusTextValue const * value);
-
-/// \brief Sets the value of a text value.
 /// \param value The text value.
 /// \pre \li Must not be null.
-/// \param new_value The new value.
+/// \param data_size_out An out-parameter for the size of the returned array.
-IKA_API void ikarus_text_value_set(IkarusTextValue * value, bool new_value);
+/// \remark Ignored if null.
+/// \return The underlying data. Owned by LibIkarus, most not be freed.
+/// \warning Undefined if the value is indeterminate.
+IKA_API char ** ikarus_text_value_get(IkarusTextValue * value, size_t * data_size_out);
+
+/// \see ikarus_text_value_get
+char const * const * ikarus_text_value_get_const(IkarusTextValue const * value, size_t * data_size_out);
+
+/// \brief Sets the data of a text value.
+/// \param value The text value.
+/// \pre \li Must not be null.
+/// \param new_data The new data or null if you wish to clear the data.
+/// \details LibIkarus does not take ownership of this array.
+/// \param new_data_size The size of the new data array or 0 if you wish to clear the data.
+IKA_API void ikarus_text_value_set(IkarusTextValue * value, char const ** new_data, size_t new_data_size);
 
 /// \brief Converts a text value to an entity value.
-/// \param text_value The text value to convert.
+/// \param value The text value to convert.
 /// \return The converted entity value.
-IKA_API struct IkarusValue * ikarus_text_value_to_value(IkarusTextValue * text_value);
+IKA_API struct IkarusValue * ikarus_text_value_to_value(IkarusTextValue * value);
 
 IKARUS_END_HEADER
 

include/ikarus/values/toggle_value.h

@@ -4,42 +4,57 @@
 /// \author Folling <folling@ikarus.world>
 
 #include <ikarus/macros.h>
+#include <ikarus/stdtypes.h>
 
 /// \addtogroup values Values
 /// @{
 
 IKARUS_BEGIN_HEADER
 
-/// \brief A true/false boolean-like value. For example "IsDead".
+/// \brief A true/false boolean-esque value. For example "Is Dead".
 struct IkarusToggleValue;
 
-/// \brief Creates a toggle value from a boolean.
+/// \brief Creates a toggle value from doubles.
-/// \param value The toggle value.
+/// \param data The toggle data or null if you wish to clear the data.
-/// \return The entity value.
+/// \details LibIkarus does not take ownership of this array.
+/// \param data_size The size of the data array or 0 if you wish to clear the data.
+/// \return The value.
 /// \remark Must be freed with #ikarus_free.
-IKA_API IkarusToggleValue * ikarus_toggle_value_create(bool value);
+IKA_API IkarusToggleValue * ikarus_toggle_value_create(bool * data, size_t data_size);
 
 /// \brief Creates an indeterminate toggle value.
-/// \return The entity value.
+/// \return The value.
 /// \remark Must be freed with #ikarus_free.
 IKA_API IkarusToggleValue * ikarus_toggle_value_create_indeterminate();
 
-/// \brief Fetches the underlying value of a toggle value.
+/// \brief Fetches the underlying data of a toggle value.
-/// \param value The toggle value.
+/// \details You may adjust the returned data as per your hearts desire.
-/// \return The underlying value.
+/// If you need to grow the data, use #ikarus_toggle_value_set with a new array.
-/// \warning Undefined if the value is indeterminate.
+/// Just remember that IkarusValues are plain objects, so changing them won't affect any state.
-IKA_API bool ikarus_toggle_value_get(IkarusToggleValue const * value);
+/// They will need to be submitted to other functions such as #ikarus_entity_set_value to have any effect.
-
-/// \brief Sets the value of a toggle value.
 /// \param value The toggle value.
 /// \pre \li Must not be null.
-/// \param new_value The new value.
+/// \param data_size_out An out-parameter for the size of the returned array.
-IKA_API void ikarus_toggle_value_set(IkarusToggleValue * value, bool new_value);
+/// \remark Ignored if null.
+/// \return The underlying data. Owned by LibIkarus, most not be freed.
+/// \warning Undefined if the value is indeterminate.
+IKA_API bool * ikarus_toggle_value_get(IkarusToggleValue * value, size_t * data_size_out);
+
+/// \see ikarus_toggle_value_get
+bool const * ikarus_toggle_value_get_const(IkarusToggleValue const * value, size_t * data_size_out);
+
+/// \brief Sets the data of a toggle value.
+/// \param value The toggle value.
+/// \pre \li Must not be null.
+/// \param new_data The new data or null if you wish to clear the data.
+/// \details LibIkarus does not take ownership of this array.
+/// \param new_data_size The size of the new data array or 0 if you wish to clear the data.
+IKA_API void ikarus_toggle_value_set(IkarusToggleValue * value, bool * new_data, size_t new_data_size);
 
 /// \brief Converts a toggle value to an entity value.
-/// \param toggle_value The toggle value to convert.
+/// \param value The toggle value to convert.
 /// \return The converted entity value.
-IKA_API struct IkarusValue * ikarus_toggle_value_to_value(IkarusToggleValue * toggle_value);
+IKA_API struct IkarusValue * ikarus_toggle_value_to_value(IkarusToggleValue * value);
 
 IKARUS_END_HEADER
 

include/ikarus/values/value.h

@@ -6,11 +6,14 @@
 #include <ikarus/macros.h>
 
 /// \defgroup values Values
-/// \brief The values stored in entities.
+/// \brief The values of properties.
 /// \details Each entity has a value for each property it is associated with.
-/// The value is of the type specified by the property and constrained by the property's settings.
+/// These value classes represent plain objects. They are not associated with any entity.
-/// A value may be indeterminate which means it is unknown or not specified.
+/// Each value may be indeterminate. \see IkarusProperty
-/// \see PropertyType PropertySettings
+/// Values are stored as lists. If a property is "singular" then its value is a list of size 1.
+/// Values are typed, with types existing for each of the corresponding property types.
+/// When setting values for a property the type must match the property type and the value must be valid under the property's
+/// settings. \see PropertyType
 /// @{
 
 IKARUS_BEGIN_HEADER

src/objects/properties/property.cpp

@@ -8,6 +8,7 @@
 #include <persistence/function_context.hpp>
 #include <persistence/project.hpp>
 #include <sys/stat.h>
+#include <values/value.hpp>
 
 IkarusProperty::IkarusProperty(IkarusProject * project, IkarusId id, Data data):
     IkarusObject{project, id},
@@ -121,6 +122,31 @@ IkarusPropertySource const * ikarus_property_get_source(IkarusProperty const * p
     }
 }
 
+IkarusValue * ikarus_property_get_default_value(IkarusProperty const * property) {
+    LOG_VERBOSE("fetching property default value");
+
+    LOG_VERBOSE("project={};property={}", property->get_project()->get_path().c_str(), property->get_id());
+
+    auto * ctx = property->get_project()->get_function_context();
+
+    VTRY(
+        auto const value,
+        property->get_project()
+            ->get_db()
+            ->query_one<int>("SELECT `default_value` FROM `properties` WHERE `id` = ?", property->get_id())
+            .on_error([ctx](auto const& err) {
+                ctx->set_error(
+                    fmt::format("failed to fetch property's default value: {}", err),
+                    true,
+                    IkarusErrorInfo_Source_SubSystem,
+                    IkarusErrorInfo_Type_SubSystem_Database
+                );
+            })
+    );
+
+    return new IkarusValue(property->get_project(), value);
+}
+
 void ikarus_property_visit(
     IkarusProperty * property,
     void (*toggle_property_visitor)(struct IkarusToggleProperty *, void *),

src/objects/properties/toggle_property.cpp

@@ -1,6 +1,10 @@
 #include "toggle_property.hpp"
 
 IkarusToggleProperty::IkarusToggleProperty(IkarusProject * project, IkarusId id):
-    IkarusProperty{project, id, this} {
+    IkarusProperty{project, id, this} {}
+
+IkarusToggleProperty * ikarus_toggle_property_create(
+    struct IkarusProject * project, char const * name, struct IkarusPropertySource * property_source
+) {
 
 }

src/persistence/migrations/m1_initial_layout.sql

@@ -2,7 +2,8 @@ CREATE TABLE `objects`
 (
     `do_not_access_rowid_alias` INTEGER PRIMARY KEY,
     `object_type`               INT NOT NULL,
-    `id`                        INT GENERATED ALWAYS AS (`do_not_access_rowid_alias` | (`object_type` << 56)) VIRTUAL,
+    `id`                        INT GENERATED ALWAYS AS (`do_not_access_rowid_alias` | (`object_type` << 56)
+) VIRTUAL,
     `name`                      TEXT NOT NULL,
     `information`               TEXT NOT NULL
 ) STRICT;
@@ -23,7 +24,7 @@ CREATE
     "unicode61 remove_diacritics 2 tokenchars '-_'"
 );
 
-CREATE TABLE `blueprints`
+CREATE TABLE `entities`
 (
     `id` INT,
 
@@ -31,7 +32,7 @@ CREATE TABLE `blueprints`
     FOREIGN KEY (`id`) REFERENCES `objects` (`id`) ON DELETE CASCADE
 ) WITHOUT ROWID, STRICT;
 
-CREATE TABLE `entities`
+CREATE TABLE `blueprints`
 (
     `id` INT,
 

src/values/number_value.cpp

@@ -2,25 +2,54 @@
 
 #include <values/number_value.hpp>
 
-IkarusNumberValue * ikarus_number_value_create(long double value) {
+IkarusNumberValue::IkarusNumberValue():
-    return new IkarusNumberValue{value};
+    IkarusValue{this} {}
+
+boost::container::vector<long double>& IkarusNumberValue::get_value() {
+    return _value;
+}
+
+boost::container::vector<long double> const& IkarusNumberValue::get_value() const {
+    return _value;
+}
+
+IkarusNumberValue * ikarus_number_value_create(long double * data, size_t data_size) {
+    auto * ret = new IkarusNumberValue{};
+
+    ikarus_number_value_set(ret, data, data_size);
+
+    return ret;
 }
 
 IkarusNumberValue * ikarus_number_value_create_indeterminate() {
-    auto * ret = new IkarusNumberValue{0.0};
+    auto * ret = new IkarusNumberValue{};
     ret->set_intermediate(true);
 
     return ret;
 }
 
-long double ikarus_number_value_get(IkarusNumberValue const * value) {
+long double * ikarus_number_value_get(IkarusNumberValue * value, size_t * data_size_out) {
-    return value->get_value();
+    // NOLINTNEXTLINE(*-pro-type-const-cast)
+    return const_cast<long double *>(ikarus_number_value_get_const(value, data_size_out));
 }
 
-void ikarus_number_value_set(IkarusNumberValue * value, long double new_value) {
+long double const * ikarus_number_value_get_const(IkarusNumberValue const * value, size_t * data_size_out) {
-    value->set_value(new_value);
+    if (data_size_out != nullptr) {
+        *data_size_out = value->get_value().size();
     }
 
-struct IkarusValue * ikarus_number_value_to_value(IkarusNumberValue * number_value) {
+    return value->get_value().data();
-    return static_cast<IkarusValue *>(number_value);
+}
+
+void ikarus_number_value_set(IkarusNumberValue * value, long double * new_data, size_t new_data_size) {
+    value->get_value().reserve(new_data_size);
+
+    for (auto i = 0; i < new_data_size; ++i) {
+        // NOLINTNEXTLINE(*-pro-bounds-pointer-arithmetic)
+        value->get_value().emplace_back(new_data[i]);
+    }
+}
+
+struct IkarusValue * ikarus_number_value_to_value(IkarusNumberValue * value) {
+    return static_cast<IkarusValue *>(value);
 }

src/values/number_value.hpp

@@ -1,13 +1,14 @@
 #pragma once
 
+#include <vector>
+
+#include <boost/container/vector.hpp>
+
 #include <values/value.hpp>
 
-/// \private
 struct IkarusNumberValue final : IkarusValue {
 public:
-    explicit IkarusNumberValue(long double value):
+    explicit IkarusNumberValue();
-        IkarusValue{this},
-        _value{value} {}
 
     IkarusNumberValue(IkarusNumberValue const&) = default;
     IkarusNumberValue(IkarusNumberValue&&) = default;
@@ -18,14 +19,9 @@ public:
     ~IkarusNumberValue() override = default;
 
 public:
-    [[nodiscard]] long double get_value() const {
+    [[nodiscard]] boost::container::vector<long double>& get_value();
-        return _value;
+    [[nodiscard]] boost::container::vector<long double> const& get_value() const;
-    }
-
-    void set_value(long double value) {
-        _value = value;
-    }
 
 private:
-    long double _value;
+    boost::container::vector<long double> _value{};
 };

src/values/text_value.cpp

@@ -1,26 +1,55 @@
 #include "ikarus/values/text_value.h"
 
-#include "text_value.hpp"
+#include <values/text_value.hpp>
 
-IkarusTextValue * ikarus_text_value_create(char const * value) {
+IkarusTextValue::IkarusTextValue():
-    return new IkarusTextValue{value};
+    IkarusValue{this} {}
+
+boost::container::vector<char const *>& IkarusTextValue::get_value() {
+    return _value;
+}
+
+boost::container::vector<char const *> const& IkarusTextValue::get_value() const {
+    return _value;
+}
+
+IkarusTextValue * ikarus_text_value_create(char const ** data, size_t data_size) {
+    auto * ret = new IkarusTextValue{};
+
+    ikarus_text_value_set(ret, data, data_size);
+
+    return ret;
 }
 
 IkarusTextValue * ikarus_text_value_create_indeterminate() {
-    auto * ret = new IkarusTextValue{""};
+    auto * ret = new IkarusTextValue{};
     ret->set_intermediate(true);
 
     return ret;
 }
 
-char const * ikarus_text_value_get(IkarusTextValue const * value) {
+char ** ikarus_text_value_get(IkarusTextValue * value, size_t * data_size_out) {
+    // NOLINTNEXTLINE(*-pro-type-const-cast)
+    return const_cast<char **>(ikarus_text_value_get_const(value, data_size_out));
+}
+
+char const * const * ikarus_text_value_get_const(IkarusTextValue const * value, size_t * data_size_out) {
+    if (data_size_out != nullptr) {
+        *data_size_out = value->get_value().size();
+    }
+
     return value->get_value().data();
 }
 
-void ikarus_text_value_set(IkarusTextValue * value, char const * new_value) {
+void ikarus_text_value_set(IkarusTextValue * value, char const ** new_data, size_t new_data_size) {
-    value->set_value(new_value);
+    value->get_value().reserve(new_data_size);
+
+    for (auto i = 0; i < new_data_size; ++i) {
+        // NOLINTNEXTLINE(*-pro-bounds-pointer-arithmetic)
+        value->get_value().emplace_back(new_data[i]);
+    }
 }
 
-struct IkarusValue * ikarus_text_value_to_value(IkarusTextValue * text_value) {
+struct IkarusValue * ikarus_text_value_to_value(IkarusTextValue * value) {
-    return static_cast<IkarusValue *>(text_value);
+    return static_cast<IkarusValue *>(value);
 }

src/values/text_value.hpp

@@ -1,33 +1,28 @@
 #pragma once
 
 #include <string>
+#include <vector>
+
+#include <boost/container/vector.hpp>
 
 #include <values/value.hpp>
 
-/// \private
 struct IkarusTextValue final : IkarusValue {
 public:
-    explicit IkarusTextValue(std::string value):
+    explicit IkarusTextValue();
-        IkarusValue{this},
-        _value(std::move(value)) {}
 
     IkarusTextValue(IkarusTextValue const&) = default;
-    IkarusTextValue(IkarusTextValue&&) noexcept = default;
+    IkarusTextValue(IkarusTextValue&&) = default;
 
     IkarusTextValue& operator=(IkarusTextValue const&) = default;
-    IkarusTextValue& operator=(IkarusTextValue&&) noexcept = default;
+    IkarusTextValue& operator=(IkarusTextValue&&) = default;
 
     ~IkarusTextValue() override = default;
 
 public:
-    [[nodiscard]] std::string_view get_value() const noexcept {
+    [[nodiscard]] boost::container::vector<char const *>& get_value();
-        return _value;
+    [[nodiscard]] boost::container::vector<char const *> const& get_value() const;
-    }
-
-    void set_value(std::string_view value) {
-        _value = value;
-    }
 
 private:
-    std::string _value;
+    boost::container::vector<char const *> _value{};
 };

src/values/toggle_value.cpp

@@ -1,26 +1,60 @@
 #include "ikarus/values/toggle_value.h"
 
-#include "toggle_value.hpp"
+#include <values/toggle_value.hpp>
 
-IkarusToggleValue * ikarus_toggle_value_create(bool value) {
+IkarusToggleValue::IkarusToggleValue():
-    return new IkarusToggleValue{value};
+    IkarusValue{this} {}
+
+boost::container::vector<bool>& IkarusToggleValue::get_value() {
+    return _value;
+}
+
+boost::container::vector<bool> const& IkarusToggleValue::get_value() const {
+    return _value;
+}
+
+IkarusToggleValue * ikarus_toggle_value_create(bool * data, size_t data_size) {
+    auto * ret = new IkarusToggleValue{};
+
+    ikarus_toggle_value_set(ret, data, data_size);
+
+    return ret;
 }
 
 IkarusToggleValue * ikarus_toggle_value_create_indeterminate() {
-    auto * ret = new IkarusToggleValue{false};
+    auto * ret = new IkarusToggleValue{};
     ret->set_intermediate(true);
 
     return ret;
 }
 
-bool ikarus_toggle_value_get(IkarusToggleValue const * value) {
+bool * ikarus_toggle_value_get(IkarusToggleValue * value, size_t * data_size_out) {
-    return value->get_value();
+    // NOLINTNEXTLINE(*-pro-type-const-cast)
+    return const_cast<bool *>(ikarus_toggle_value_get_const(value, data_size_out));
 }
 
-void ikarus_toggle_value_set(IkarusToggleValue * value, bool new_value) {
+bool const * ikarus_toggle_value_get_const(IkarusToggleValue const * value, size_t * data_size_out) {
-    value->set_value(new_value);
+    if (data_size_out != nullptr) {
+        *data_size_out = value->get_value().size();
     }
 
-struct IkarusValue * ikarus_toggle_value_to_value(IkarusToggleValue * toggle_value) {
+    return value->get_value().data();
-    return static_cast<IkarusValue *>(toggle_value);
+}
+
+void ikarus_toggle_value_set(IkarusToggleValue * value, bool * new_data, size_t new_data_size) {
+    if (new_data == nullptr || new_data_size == 0) {
+        value->get_value().clear();
+        return;
+    }
+
+    value->get_value().reserve(new_data_size);
+
+    for (auto i = 0; i < new_data_size; ++i) {
+        // NOLINTNEXTLINE(*-pro-bounds-pointer-arithmetic)
+        value->get_value().emplace_back(new_data[i]);
+    }
+}
+
+struct IkarusValue * ikarus_toggle_value_to_value(IkarusToggleValue * value) {
+    return static_cast<IkarusValue *>(value);
 }

src/values/toggle_value.hpp

@@ -1,13 +1,14 @@
 #pragma once
 
+#include <vector>
+
+#include <boost/container/vector.hpp>
+
 #include <values/value.hpp>
 
-/// \private
 struct IkarusToggleValue final : IkarusValue {
 public:
-    explicit IkarusToggleValue(bool value):
+    explicit IkarusToggleValue();
-        IkarusValue{this},
-        _value{value} {}
 
     IkarusToggleValue(IkarusToggleValue const&) = default;
     IkarusToggleValue(IkarusToggleValue&&) = default;
@@ -18,14 +19,9 @@ public:
     ~IkarusToggleValue() override = default;
 
 public:
-    [[nodiscard]] bool get_value() const {
+    [[nodiscard]] boost::container::vector<bool>& get_value();
-        return _value;
+    [[nodiscard]] boost::container::vector<bool> const& get_value() const;
-    }
-
-    void set_value(bool value) {
-        _value = value;
-    }
 
 private:
-    bool _value;
+    boost::container::vector<bool> _value{};
 };