383 lines
10 KiB
C++
383 lines
10 KiB
C++
//
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// php-armadillo/php_arma.hh
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//
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// @Author CismonX
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//
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#ifndef PHP_ARMA_HH
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#define PHP_ARMA_HH
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <php.h>
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#include <zend_exceptions.h>
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#include <functional>
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#define PHP_ARMA_VERSION "0.0.1"
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#if PHP_VERSION_ID >= 70400
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#define ZEND_ACC_CTOR 0
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#endif
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/// Helper macros for method entry.
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#define PHP_ARMA_START_ME(cls, ...) \
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zend_function_entry cls<__VA_ARGS__>::me[] = {
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#define PHP_ARMA_END_ME() \
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PHP_FE_END \
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}
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#define PHP_ARMA_ME(func, flags) \
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ZEND_FENTRY(func, zif_##func, nullptr, flags)
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#define PHP_ARMA_METHOD(cls, func, ...) \
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void ZEND_FASTCALL cls<__VA_ARGS__>::zif_##func(INTERNAL_FUNCTION_PARAMETERS)
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/// Helper macros for class entry and object handlers
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#define PHP_ARMA_CE_HANDLRES_DECLARE() \
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static inline zend_class_entry *ce; \
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static inline zend_object_handlers handlers
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#define PHP_ARMA_CE(cls, ...) \
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cls<__VA_ARGS__>::ce
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#define PHP_ARMA_HANDLERS(cls, ...) \
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&cls<__VA_ARGS__>::handlers
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#define Z_OBJNAME_P(zval_p) \
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ZSTR_VAL(Z_OBJCE_P(zval_p)->name)
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#define PHP_ARMA_COMMON_DECLARE() \
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struct php_name; \
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static zend_function_entry me[]
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#define PHP_ARMA_NAME_DECLARE(cls, name, ...) \
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template <> \
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struct cls<__VA_ARGS__>::php_name \
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{ \
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static constexpr const char val[] = name; \
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}
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/// Helper macros for parameter parsing.
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#ifndef Z_PARAM_DOUBLE_DEREF
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#define Z_PARAM_DOUBLE_DEREF(dest) \
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Z_PARAM_DOUBLE_EX2(dest, _dummy, 0, 1, 0)
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#endif // !Z_PARAM_DOUBLE_DEREF
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#ifdef PHP_ARMA_OPERATORS
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/// Helper macros for handling operator overloading.
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#define PHP_ARMA_OPERATOR_BEGIN(parent_ce) \
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{ \
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if (instanceof_function(ce, parent_ce)) {
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#define PHP_ARMA_OPERATOR_END() \
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return false; \
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} \
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}
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#endif // PHP_ARMA_OPERATORS
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namespace php_arma
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{
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extern zend_module_entry module_entry;
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/// Helpers for compile-time string concatenation for better module startup performance.
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namespace str
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{
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template <size_t... S>
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using seq = std::integer_sequence<size_t, S...>;
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template <size_t N>
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using seq_impl = std::make_integer_sequence<size_t, N>;
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constexpr auto get_len(const char *str)
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{
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auto i = 0;
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for (; *str != 0; ++i, ++str);
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return i;
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}
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template <const char*, typename, const char*, typename>
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struct concat_impl;
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template <const char* Str1, size_t... Len1, const char* Str2, size_t... Len2>
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struct concat_impl<Str1, seq<Len1...>, Str2, seq<Len2...>>
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{
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static constexpr const char value[]
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{
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Str1[Len1]..., Str2[Len2]..., 0
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};
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};
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template <const char *Str1, const char *Str2>
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constexpr auto concat
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{
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concat_impl<Str1, seq_impl<get_len(Str1)>, Str2, seq_impl<get_len(Str2)>>::value
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};
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constexpr const char namespace_prefix[] = "Arma\\";
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constexpr const char internal_prefix[] = "Internal\\";
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template <const char *Str>
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constexpr auto with_arma_prefix
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{
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concat<namespace_prefix, Str>
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};
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template <const char *Str>
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constexpr auto with_internal_prefix
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{
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concat<internal_prefix, Str>
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};
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}
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/// Helper functions for initializing class entry and object handlers.
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template <const char *Name, typename F>
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zend_always_inline
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zend_class_entry *ce_init(const zend_function_entry *methods, F init_func)
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{
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zend_class_entry tmp_ce;
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constexpr auto name = str::with_arma_prefix<Name>;
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constexpr auto name_len = str::get_len(name);
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INIT_CLASS_ENTRY_EX(tmp_ce, name, name_len, methods);
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return init_func(&tmp_ce);
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}
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template <const char *Name, typename F, typename... Ts>
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zend_always_inline
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zend_class_entry *ce_init(const zend_function_entry *methods, F init_func, Ts... interfaces)
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{
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auto ce = ce_init<Name>(methods, init_func);
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zend_class_implements(ce, sizeof...(Ts), interfaces...);
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return ce;
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}
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template <const char *Name>
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zend_always_inline
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zend_class_entry *interface_register()
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{
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// Although methods are declared in interfaces as you see in the stubs,
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// nothing is declared in the internal interface implementation.
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return ce_init<str::with_internal_prefix<Name>>(nullptr, zend_register_internal_class);
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}
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template <const char *Name, typename... Ts>
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zend_always_inline
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zend_class_entry *interface_register(Ts... parents)
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{
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return ce_init<str::with_internal_prefix<Name>>(nullptr, zend_register_internal_class, parents...);
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}
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template <const char *Name>
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zend_always_inline
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zend_class_entry *class_register(zend_class_entry *parent, const zend_function_entry *methods)
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{
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auto init_func = std::bind(zend_register_internal_class_ex, std::placeholders::_1, parent);
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return ce_init<Name>(methods, init_func);
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}
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template <const char *Name>
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zend_always_inline
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zend_class_entry *abstract_class_register()
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{
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auto ce = ce_init<Name>(nullptr, zend_register_internal_class);
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ce->ce_flags |= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS;
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return ce;
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}
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template <const char *Name, typename... Ts>
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zend_always_inline
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zend_class_entry *abstract_class_register(Ts... interfaces)
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{
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auto ce = ce_init<Name>(nullptr, zend_register_internal_class, interfaces...);
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ce->ce_flags |= ZEND_ACC_EXPLICIT_ABSTRACT_CLASS;
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return ce;
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}
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zend_always_inline
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void object_handlers_init(zend_object_handlers *handlers)
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{
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memcpy(handlers, &std_object_handlers, sizeof(zend_object_handlers));
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}
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template <typename T>
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zend_always_inline
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zend_object *to_zend_object(T *obj)
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{
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return reinterpret_cast<zend_object*>(obj + 1);
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}
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template <typename T>
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zend_always_inline
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T *to_native_object(zend_object *zobj)
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{
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return reinterpret_cast<T*>(zobj) - 1;
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}
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/// Helper functions for handling objects.
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template <typename T, typename F>
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zend_always_inline
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zend_object *object_create(zend_class_entry *ce, F init)
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{
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auto obj = reinterpret_cast<T*>(emalloc(sizeof(T) + sizeof(zend_object) - sizeof(zval)));
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auto zobj = to_zend_object(obj);
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zobj->handlers = init(obj);
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zend_object_std_init(zobj, ce);
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return zobj;
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}
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zend_always_inline
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zend_object *object_create(zend_class_entry *ce, const zend_object_handlers *handlers)
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{
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auto zobj = reinterpret_cast<zend_object*>(emalloc(
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sizeof(zend_object) + zend_object_properties_size(ce)));
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zobj->handlers = handlers;
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zend_object_std_init(zobj, ce);
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object_properties_init(zobj, ce);
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return zobj;
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}
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zend_always_inline
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void object_set_property(zend_object *obj, size_t idx, zval *val)
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{
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zval_ptr_dtor(OBJ_PROP_NUM(obj, idx));
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ZVAL_COPY(OBJ_PROP_NUM(obj, idx), val);
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}
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zend_always_inline
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zend_object *object_non_constructible(zend_class_entry *ce)
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{
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zend_throw_exception_ex(zend_ce_error, -3,
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"Class %s is not explicitly constructible.", ZSTR_VAL(ce->name));
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return zend_objects_new(ce);
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}
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/// Helper functions for handling scalar types.
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template <typename>
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struct false_type : std::false_type {};
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template <typename T>
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zend_always_inline
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constexpr void bad_scalar_type()
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{
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static_assert(false_type<T>::value, "Type should be zend_long, double or cx_double");
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}
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template <typename T>
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zend_always_inline
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bool zval_is_scalar(zval *zv)
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{
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bad_scalar_type<T>();
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}
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template <>
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zend_always_inline
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bool zval_is_scalar<double>(zval *zv)
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{
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return Z_TYPE_P(zv) == IS_DOUBLE;
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}
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template <>
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zend_always_inline
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bool zval_is_scalar<zend_long>(zval *zv)
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{
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return Z_TYPE_P(zv) == IS_LONG;
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}
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template <typename T>
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zend_always_inline
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const char *scalar_type_name()
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{
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bad_scalar_type<T>();
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}
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template <>
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zend_always_inline
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const char *scalar_type_name<double>()
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{
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return zend_get_type_by_const(IS_DOUBLE);
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}
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template <>
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zend_always_inline
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const char *scalar_type_name<zend_long>()
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{
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return zend_get_type_by_const(IS_LONG);
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}
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template <typename T>
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zend_always_inline
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T zval_get_scalar(zval *zv)
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{
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bad_scalar_type<T>();
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}
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template <>
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zend_always_inline
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double zval_get_scalar<double>(zval *zv)
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{
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return Z_DVAL_P(zv);
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}
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template <>
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zend_always_inline
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zend_long zval_get_scalar<zend_long>(zval *zv)
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{
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return Z_LVAL_P(zv);
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}
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zend_always_inline
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void zval_set_scalar(zval *zv, double val)
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{
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ZVAL_DOUBLE(zv, val);
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}
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zend_always_inline
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void zval_set_scalar(zval *zv, zend_long val)
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{
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ZVAL_LONG(zv, val);
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}
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zend_always_inline
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const char *zval_get_type_name(zval *zv)
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{
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if (Z_TYPE_P(zv) == IS_OBJECT) {
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return ZSTR_VAL(Z_OBJCE_P(zv)->name);
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} else {
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return zend_get_type_by_const(Z_TYPE_P(zv));
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}
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}
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/// Helper functions for throwing exceptions when errors occur.
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zend_always_inline
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void ex_bad_type(const char *expected, const char *got)
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{
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zend_throw_exception_ex(zend_ce_type_error, -1, "Bad type, expected %s, %s given.", expected, got);
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}
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template <typename T>
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zend_always_inline
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bool zval_check_scalar(zval *zv)
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{
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if (UNEXPECTED(!zval_is_scalar<T>(zv))) {
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ex_bad_type(scalar_type_name<T>(), zval_get_type_name(zv));
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return false;
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}
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return true;
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}
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}
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#endif // !PHP_ARMA_HH
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