feat(class): allow implementing internal PHP interfaces

Author: kakserpom

allowed_bindings.rs

@@ -83,6 +83,7 @@ bind! {
     zend_ce_serializable,
     zend_ce_countable,
     zend_ce_stringable,
+    php_json_serializable_ce,
     zend_class_entry,
     zend_declare_class_constant,
     zend_declare_property,

docsrs_bindings.rs

@@ -3853,3 +3853,6 @@ pub type zend_observer_error_cb = ::std::option::Option<
 unsafe extern "C" {
     pub fn zend_observer_error_register(callback: zend_observer_error_cb);
 }
+unsafe extern "C" {
+    pub static mut php_json_serializable_ce: *mut zend_class_entry;
+}

src/wrapper.h

@@ -40,6 +40,7 @@
 #include "zend_ini.h"
 #include "zend_observer.h"
 #include "main/SAPI.h"
+#include "ext/json/php_json.h"
 
 zend_string *ext_php_rs_zend_string_init(const char *str, size_t len, bool persistent);
 void ext_php_rs_zend_string_release(zend_string *zs);

src/zend/ce.rs

@@ -3,11 +3,11 @@
 #![allow(clippy::unwrap_used)]
 
 use crate::ffi::{
-    zend_ce_aggregate, zend_ce_argument_count_error, zend_ce_arithmetic_error, zend_ce_arrayaccess,
-    zend_ce_compile_error, zend_ce_countable, zend_ce_division_by_zero_error,
-    zend_ce_error_exception, zend_ce_exception, zend_ce_iterator, zend_ce_parse_error,
-    zend_ce_serializable, zend_ce_stringable, zend_ce_throwable, zend_ce_traversable,
-    zend_ce_type_error, zend_ce_unhandled_match_error, zend_ce_value_error,
+    php_json_serializable_ce, zend_ce_aggregate, zend_ce_argument_count_error,
+    zend_ce_arithmetic_error, zend_ce_arrayaccess, zend_ce_compile_error, zend_ce_countable,
+    zend_ce_division_by_zero_error, zend_ce_error_exception, zend_ce_exception, zend_ce_iterator,
+    zend_ce_parse_error, zend_ce_serializable, zend_ce_stringable, zend_ce_throwable,
+    zend_ce_traversable, zend_ce_type_error, zend_ce_unhandled_match_error, zend_ce_value_error,
     zend_standard_class_def,
 };
 
@@ -184,6 +184,15 @@ pub fn stringable() -> &'static ClassEntry {
     unsafe { zend_ce_stringable.as_ref() }.unwrap()
 }
 
+/// Returns the [`JsonSerializable`](https://www.php.net/manual/en/class.jsonserializable.php) interface.
+///
+/// # Panics
+///
+/// If jsonserializable [`ClassEntry`] is not available
+pub fn jsonserializable() -> &'static ClassEntry {
+    unsafe { php_json_serializable_ce.as_ref() }.unwrap()
+}
+
 #[cfg(test)]
 #[cfg(feature = "embed")]
 mod tests {
@@ -341,4 +350,12 @@ mod tests {
             assert_eq!(stringable.name(), Some("Stringable"));
         });
     }
+
+    #[test]
+    fn test_jsonserializable() {
+        Embed::run(|| {
+            let jsonserializable = jsonserializable();
+            assert_eq!(jsonserializable.name(), Some("JsonSerializable"));
+        });
+    }
 }