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Diffstat (limited to 'core/variant/variant_construct.h')
| -rw-r--r-- | core/variant/variant_construct.h | 572 |
1 files changed, 572 insertions, 0 deletions
diff --git a/core/variant/variant_construct.h b/core/variant/variant_construct.h new file mode 100644 index 0000000000..b03f4a8d3b --- /dev/null +++ b/core/variant/variant_construct.h @@ -0,0 +1,572 @@ +/*************************************************************************/ +/* variant_construct.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#ifndef VARIANT_CONSTRUCT_H +#define VARIANT_CONSTRUCT_H + +#include "variant.h" + +#include "core/core_string_names.h" +#include "core/crypto/crypto_core.h" +#include "core/debugger/engine_debugger.h" +#include "core/io/compression.h" +#include "core/object/class_db.h" +#include "core/os/os.h" +#include "core/templates/local_vector.h" +#include "core/templates/oa_hash_map.h" + +template <class T> +struct PtrConstruct {}; + +#define MAKE_PTRCONSTRUCT(m_type) \ + template <> \ + struct PtrConstruct<m_type> { \ + _FORCE_INLINE_ static void construct(const m_type &p_value, void *p_ptr) { \ + memnew_placement(p_ptr, m_type(p_value)); \ + } \ + }; + +MAKE_PTRCONSTRUCT(bool); +MAKE_PTRCONSTRUCT(int64_t); +MAKE_PTRCONSTRUCT(double); +MAKE_PTRCONSTRUCT(String); +MAKE_PTRCONSTRUCT(Vector2); +MAKE_PTRCONSTRUCT(Vector2i); +MAKE_PTRCONSTRUCT(Rect2); +MAKE_PTRCONSTRUCT(Rect2i); +MAKE_PTRCONSTRUCT(Vector3); +MAKE_PTRCONSTRUCT(Vector3i); +MAKE_PTRCONSTRUCT(Transform2D); +MAKE_PTRCONSTRUCT(Plane); +MAKE_PTRCONSTRUCT(Quaternion); +MAKE_PTRCONSTRUCT(AABB); +MAKE_PTRCONSTRUCT(Basis); +MAKE_PTRCONSTRUCT(Transform3D); +MAKE_PTRCONSTRUCT(Color); +MAKE_PTRCONSTRUCT(StringName); +MAKE_PTRCONSTRUCT(NodePath); +MAKE_PTRCONSTRUCT(RID); + +template <> +struct PtrConstruct<Object *> { + _FORCE_INLINE_ static void construct(Object *p_value, void *p_ptr) { + *((Object **)p_ptr) = p_value; + } +}; + +MAKE_PTRCONSTRUCT(Callable); +MAKE_PTRCONSTRUCT(Signal); +MAKE_PTRCONSTRUCT(Dictionary); +MAKE_PTRCONSTRUCT(Array); +MAKE_PTRCONSTRUCT(PackedByteArray); +MAKE_PTRCONSTRUCT(PackedInt32Array); +MAKE_PTRCONSTRUCT(PackedInt64Array); +MAKE_PTRCONSTRUCT(PackedFloat32Array); +MAKE_PTRCONSTRUCT(PackedFloat64Array); +MAKE_PTRCONSTRUCT(PackedStringArray); +MAKE_PTRCONSTRUCT(PackedVector2Array); +MAKE_PTRCONSTRUCT(PackedVector3Array); +MAKE_PTRCONSTRUCT(PackedColorArray); +MAKE_PTRCONSTRUCT(Variant); + +template <class T, class... P> +class VariantConstructor { + template <size_t... Is> + static _FORCE_INLINE_ void construct_helper(T &base, const Variant **p_args, Callable::CallError &r_error, IndexSequence<Is...>) { + r_error.error = Callable::CallError::CALL_OK; + +#ifdef DEBUG_METHODS_ENABLED + base = T(VariantCasterAndValidate<P>::cast(p_args, Is, r_error)...); +#else + base = T(VariantCaster<P>::cast(*p_args[Is])...); +#endif + } + + template <size_t... Is> + static _FORCE_INLINE_ void validated_construct_helper(T &base, const Variant **p_args, IndexSequence<Is...>) { + base = T((*VariantGetInternalPtr<P>::get_ptr(p_args[Is]))...); + } + + template <size_t... Is> + static _FORCE_INLINE_ void ptr_construct_helper(void *base, const void **p_args, IndexSequence<Is...>) { + PtrConstruct<T>::construct(T(PtrToArg<P>::convert(p_args[Is])...), base); + } + +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + r_error.error = Callable::CallError::CALL_OK; + VariantTypeChanger<T>::change(&r_ret); + construct_helper(*VariantGetInternalPtr<T>::get_ptr(&r_ret), p_args, r_error, BuildIndexSequence<sizeof...(P)>{}); + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantTypeChanger<T>::change(r_ret); + validated_construct_helper(*VariantGetInternalPtr<T>::get_ptr(r_ret), p_args, BuildIndexSequence<sizeof...(P)>{}); + } + static void ptr_construct(void *base, const void **p_args) { + ptr_construct_helper(base, p_args, BuildIndexSequence<sizeof...(P)>{}); + } + + static int get_argument_count() { + return sizeof...(P); + } + + static Variant::Type get_argument_type(int p_arg) { + return call_get_argument_type<P...>(p_arg); + } + + static Variant::Type get_base_type() { + return GetTypeInfo<T>::VARIANT_TYPE; + } +}; + +class VariantConstructorObject { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + VariantInternal::clear(&r_ret); + if (p_args[0]->get_type() == Variant::NIL) { + VariantInternal::object_assign_null(&r_ret); + r_error.error = Callable::CallError::CALL_OK; + } else if (p_args[0]->get_type() == Variant::OBJECT) { + VariantInternal::object_assign(&r_ret, p_args[0]); + r_error.error = Callable::CallError::CALL_OK; + } else { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 0; + r_error.expected = Variant::OBJECT; + } + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantInternal::clear(r_ret); + VariantInternal::object_assign(r_ret, p_args[0]); + } + static void ptr_construct(void *base, const void **p_args) { + PtrConstruct<Object *>::construct(PtrToArg<Object *>::convert(p_args[0]), base); + } + + static int get_argument_count() { + return 1; + } + + static Variant::Type get_argument_type(int p_arg) { + return Variant::OBJECT; + } + + static Variant::Type get_base_type() { + return Variant::OBJECT; + } +}; + +class VariantConstructorNilObject { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + if (p_args[0]->get_type() != Variant::NIL) { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 0; + r_error.expected = Variant::NIL; + } + + VariantInternal::clear(&r_ret); + VariantInternal::object_assign_null(&r_ret); + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantInternal::clear(r_ret); + VariantInternal::object_assign_null(r_ret); + } + static void ptr_construct(void *base, const void **p_args) { + PtrConstruct<Object *>::construct(nullptr, base); + } + + static int get_argument_count() { + return 1; + } + + static Variant::Type get_argument_type(int p_arg) { + return Variant::NIL; + } + + static Variant::Type get_base_type() { + return Variant::OBJECT; + } +}; + +class VariantConstructorCallableArgs { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + ObjectID object_id; + StringName method; + + if (p_args[0]->get_type() == Variant::NIL) { + // leave as is + } else if (p_args[0]->get_type() == Variant::OBJECT) { + object_id = VariantInternal::get_object_id(p_args[0]); + } else { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 0; + r_error.expected = Variant::OBJECT; + return; + } + + if (p_args[1]->get_type() == Variant::STRING_NAME) { + method = *VariantGetInternalPtr<StringName>::get_ptr(p_args[1]); + } else if (p_args[1]->get_type() == Variant::STRING) { + method = *VariantGetInternalPtr<String>::get_ptr(p_args[1]); + } else { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 1; + r_error.expected = Variant::STRING_NAME; + return; + } + + VariantTypeChanger<Callable>::change(&r_ret); + *VariantGetInternalPtr<Callable>::get_ptr(&r_ret) = Callable(object_id, method); + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantTypeChanger<Callable>::change(r_ret); + *VariantGetInternalPtr<Callable>::get_ptr(r_ret) = Callable(VariantInternal::get_object_id(p_args[0]), *VariantGetInternalPtr<StringName>::get_ptr(p_args[1])); + } + static void ptr_construct(void *base, const void **p_args) { + PtrConstruct<Callable>::construct(Callable(PtrToArg<Object *>::convert(p_args[0]), PtrToArg<StringName>::convert(p_args[1])), base); + } + + static int get_argument_count() { + return 2; + } + + static Variant::Type get_argument_type(int p_arg) { + if (p_arg == 0) { + return Variant::OBJECT; + } else { + return Variant::STRING_NAME; + } + } + + static Variant::Type get_base_type() { + return Variant::CALLABLE; + } +}; + +class VariantConstructorSignalArgs { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + ObjectID object_id; + StringName method; + + if (p_args[0]->get_type() == Variant::NIL) { + // leave as is + } else if (p_args[0]->get_type() == Variant::OBJECT) { + object_id = VariantInternal::get_object_id(p_args[0]); + } else { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 0; + r_error.expected = Variant::OBJECT; + return; + } + + if (p_args[1]->get_type() == Variant::STRING_NAME) { + method = *VariantGetInternalPtr<StringName>::get_ptr(p_args[1]); + } else if (p_args[1]->get_type() == Variant::STRING) { + method = *VariantGetInternalPtr<String>::get_ptr(p_args[1]); + } else { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 1; + r_error.expected = Variant::STRING_NAME; + return; + } + + VariantTypeChanger<Signal>::change(&r_ret); + *VariantGetInternalPtr<Signal>::get_ptr(&r_ret) = Signal(object_id, method); + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantTypeChanger<Signal>::change(r_ret); + *VariantGetInternalPtr<Signal>::get_ptr(r_ret) = Signal(VariantInternal::get_object_id(p_args[0]), *VariantGetInternalPtr<StringName>::get_ptr(p_args[1])); + } + static void ptr_construct(void *base, const void **p_args) { + PtrConstruct<Signal>::construct(Signal(PtrToArg<Object *>::convert(p_args[0]), PtrToArg<StringName>::convert(p_args[1])), base); + } + + static int get_argument_count() { + return 2; + } + + static Variant::Type get_argument_type(int p_arg) { + if (p_arg == 0) { + return Variant::OBJECT; + } else { + return Variant::STRING_NAME; + } + } + + static Variant::Type get_base_type() { + return Variant::SIGNAL; + } +}; + +template <class T> +class VariantConstructorToArray { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + if (p_args[0]->get_type() != GetTypeInfo<T>::VARIANT_TYPE) { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 0; + r_error.expected = GetTypeInfo<T>::VARIANT_TYPE; + return; + } + + VariantTypeChanger<Array>::change(&r_ret); + Array &dst_arr = *VariantGetInternalPtr<Array>::get_ptr(&r_ret); + const T &src_arr = *VariantGetInternalPtr<T>::get_ptr(p_args[0]); + + int size = src_arr.size(); + dst_arr.resize(size); + for (int i = 0; i < size; i++) { + dst_arr[i] = src_arr[i]; + } + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantTypeChanger<Array>::change(r_ret); + Array &dst_arr = *VariantGetInternalPtr<Array>::get_ptr(r_ret); + const T &src_arr = *VariantGetInternalPtr<T>::get_ptr(p_args[0]); + + int size = src_arr.size(); + dst_arr.resize(size); + for (int i = 0; i < size; i++) { + dst_arr[i] = src_arr[i]; + } + } + static void ptr_construct(void *base, const void **p_args) { + Array dst_arr; + T src_arr = PtrToArg<T>::convert(p_args[0]); + + int size = src_arr.size(); + dst_arr.resize(size); + for (int i = 0; i < size; i++) { + dst_arr[i] = src_arr[i]; + } + + PtrConstruct<Array>::construct(dst_arr, base); + } + + static int get_argument_count() { + return 1; + } + + static Variant::Type get_argument_type(int p_arg) { + return GetTypeInfo<T>::VARIANT_TYPE; + } + + static Variant::Type get_base_type() { + return Variant::ARRAY; + } +}; + +template <class T> +class VariantConstructorFromArray { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + if (p_args[0]->get_type() != Variant::ARRAY) { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 0; + r_error.expected = Variant::ARRAY; + return; + } + + VariantTypeChanger<T>::change(&r_ret); + const Array &src_arr = *VariantGetInternalPtr<Array>::get_ptr(p_args[0]); + T &dst_arr = *VariantGetInternalPtr<T>::get_ptr(&r_ret); + + int size = src_arr.size(); + dst_arr.resize(size); + for (int i = 0; i < size; i++) { + dst_arr.write[i] = src_arr[i]; + } + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantTypeChanger<T>::change(r_ret); + const Array &src_arr = *VariantGetInternalPtr<Array>::get_ptr(p_args[0]); + T &dst_arr = *VariantGetInternalPtr<T>::get_ptr(r_ret); + + int size = src_arr.size(); + dst_arr.resize(size); + for (int i = 0; i < size; i++) { + dst_arr.write[i] = src_arr[i]; + } + } + static void ptr_construct(void *base, const void **p_args) { + Array src_arr = PtrToArg<Array>::convert(p_args[0]); + T dst_arr; + + int size = src_arr.size(); + dst_arr.resize(size); + for (int i = 0; i < size; i++) { + dst_arr.write[i] = src_arr[i]; + } + + PtrConstruct<T>::construct(dst_arr, base); + } + + static int get_argument_count() { + return 1; + } + + static Variant::Type get_argument_type(int p_arg) { + return Variant::ARRAY; + } + + static Variant::Type get_base_type() { + return GetTypeInfo<T>::VARIANT_TYPE; + } +}; + +class VariantConstructorNil { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + if (p_args[0]->get_type() != Variant::NIL) { + r_error.error = Callable::CallError::CALL_ERROR_INVALID_ARGUMENT; + r_error.argument = 0; + r_error.expected = Variant::NIL; + return; + } + + r_error.error = Callable::CallError::CALL_OK; + VariantInternal::clear(&r_ret); + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantInternal::clear(r_ret); + } + static void ptr_construct(void *base, const void **p_args) { + PtrConstruct<Variant>::construct(Variant(), base); + } + + static int get_argument_count() { + return 1; + } + + static Variant::Type get_argument_type(int p_arg) { + return Variant::NIL; + } + + static Variant::Type get_base_type() { + return Variant::NIL; + } +}; + +template <class T> +class VariantConstructNoArgs { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + VariantTypeChanger<T>::change_and_reset(&r_ret); + r_error.error = Callable::CallError::CALL_OK; + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantTypeChanger<T>::change_and_reset(r_ret); + } + static void ptr_construct(void *base, const void **p_args) { + PtrConstruct<T>::construct(T(), base); + } + + static int get_argument_count() { + return 0; + } + + static Variant::Type get_argument_type(int p_arg) { + return Variant::NIL; + } + + static Variant::Type get_base_type() { + return GetTypeInfo<T>::VARIANT_TYPE; + } +}; + +class VariantConstructNoArgsNil { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + VariantInternal::clear(&r_ret); + r_error.error = Callable::CallError::CALL_OK; + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantInternal::clear(r_ret); + } + static void ptr_construct(void *base, const void **p_args) { + ERR_FAIL_MSG("can't ptrcall nil constructor"); + } + + static int get_argument_count() { + return 0; + } + + static Variant::Type get_argument_type(int p_arg) { + return Variant::NIL; + } + + static Variant::Type get_base_type() { + return Variant::NIL; + } +}; + +class VariantConstructNoArgsObject { +public: + static void construct(Variant &r_ret, const Variant **p_args, Callable::CallError &r_error) { + VariantInternal::clear(&r_ret); + VariantInternal::object_assign_null(&r_ret); + r_error.error = Callable::CallError::CALL_OK; + } + + static inline void validated_construct(Variant *r_ret, const Variant **p_args) { + VariantInternal::clear(r_ret); + VariantInternal::object_assign_null(r_ret); + } + static void ptr_construct(void *base, const void **p_args) { + PtrConstruct<Object *>::construct(nullptr, base); + } + + static int get_argument_count() { + return 0; + } + + static Variant::Type get_argument_type(int p_arg) { + return Variant::NIL; + } + + static Variant::Type get_base_type() { + return Variant::OBJECT; + } +}; + +#endif // VARIANT_CONSTRUCT_H |