актуализировал код

Cargo.toml

@@ -13,4 +13,4 @@ panic = "abort"   # Abort on panic
 strip = true      # Automatically strip symbols from the binary.
 
 [dependencies]
-addin1c = "0.1"
+addin1c = "0.7"

src/addin1.rs

@@ -1,6 +1,6 @@
-use addin1c::{name, ParamValue, RawAddin, Tm, Variant};
+use addin1c::{name, CStr1C, ParamValue, RawAddin, Tm, Variant};
 
-const PROPS: &[&[u16]] = &[
+const PROPS: &[&CStr1C] = &[
     name!("Test"),
     name!("PropI32"),
     name!("PropF64"),
@@ -10,7 +10,7 @@ const PROPS: &[&[u16]] = &[
     name!("PropBlob"),
 ];
 
-const METHODS: &[&[u16]] = &[name!("Method1"), name!("Method2")];
+const METHODS: &[&CStr1C] = &[name!("Method1"), name!("Method2")];
 
 pub struct Addin1 {
     test: i32,
@@ -41,7 +41,7 @@ impl Drop for Addin1 {
 }
 
 impl RawAddin for Addin1 {
-    fn register_extension_as(&mut self) -> &'static [u16] {
+    fn register_extension_as(&mut self) -> &'static CStr1C {
         name!("Class1")
     }
 
@@ -49,11 +49,11 @@ impl RawAddin for Addin1 {
         PROPS.len()
     }
 
-    fn find_prop(&mut self, name: &[u16]) -> Option<usize> {
+    fn find_prop(&mut self, name: &CStr1C) -> Option<usize> {
         PROPS.iter().position(|&x| x == name)
     }
 
-    fn get_prop_name(&mut self, num: usize, _alias: usize) -> Option<&'static [u16]> {
+    fn get_prop_name(&mut self, num: usize, _alias: usize) -> Option<&'static CStr1C> {
         PROPS.get(num).copied()
     }
 
@@ -66,61 +66,61 @@ impl RawAddin for Addin1 {
             4 => val.set_date(self.prop_date),
             5 => {
                 let s: Vec<u16> = self.prop_str.encode_utf16().collect();
-                return val.set_str(s.as_slice());
+                return val.set_str1c(s.as_slice()).is_ok();
             }
             6 => {
-                return val.set_blob(self.prop_blob.as_slice());
+                return val.set_blob(self.prop_blob.as_slice()).is_ok();
             }
             _ => return false,
         };
         true
     }
 
-    fn set_prop_val(&mut self, num: usize, val: &ParamValue) -> bool {
+    fn set_prop_val(&mut self, num: usize, val: &Variant) -> bool {
         match num {
-            0 => match val {
+            0 => match val.get() {
                 ParamValue::I32(x) => {
-                    self.test = *x;
+                    self.test = x;
                     true
                 }
                 _ => false,
             },
-            1 => match val {
+            1 => match val.get() {
                 ParamValue::I32(x) => {
-                    self.prop_i32 = *x;
+                    self.prop_i32 = x;
                     true
                 }
                 _ => false,
             },
-            2 => match val {
+            2 => match val.get() {
                 ParamValue::F64(x) => {
-                    self.prop_f64 = *x;
+                    self.prop_f64 = x;
                     true
                 }
                 _ => false,
             },
-            3 => match val {
+            3 => match val.get() {
                 ParamValue::Bool(x) => {
-                    self.prop_bool = *x;
+                    self.prop_bool = x;
                     true
                 }
                 _ => false,
             },
-            4 => match val {
+            4 => match val.get() {
                 ParamValue::Date(x) => {
-                    self.prop_date = *x;
+                    self.prop_date = x;
                     true
                 }
                 _ => false,
             },
-            5 => match val {
+            5 => match val.get() {
                 ParamValue::Str(x) => {
                     self.prop_str = String::from_utf16(x).unwrap();
                     true
                 }
                 _ => false,
             },
-            6 => match val {
+            6 => match val.get() {
                 ParamValue::Blob(x) => {
                     self.prop_blob.clear();
                     self.prop_blob.extend_from_slice(x);
@@ -137,27 +137,18 @@ impl RawAddin for Addin1 {
     }
 
     fn is_prop_writable(&mut self, num: usize) -> bool {
-        match num {
-            0 => true,
-            1 => true,
-            2 => true,
-            3 => true,
-            4 => true,
-            5 => true,
-            6 => true,
-            _ => false,
-        }
+        matches!(num, 0..=6)
     }
 
     fn get_n_methods(&mut self) -> usize {
         METHODS.len()
     }
 
-    fn find_method(&mut self, name: &[u16]) -> Option<usize> {
+    fn find_method(&mut self, name: &CStr1C) -> Option<usize> {
         METHODS.iter().position(|&x| x == name)
     }
 
-    fn get_method_name(&mut self, num: usize, _alias: usize) -> Option<&'static [u16]> {
+    fn get_method_name(&mut self, num: usize, _alias: usize) -> Option<&'static CStr1C> {
         METHODS.get(num).copied()
     }
 
@@ -179,11 +170,7 @@ impl RawAddin for Addin1 {
     }
 
     fn has_ret_val(&mut self, num: usize) -> bool {
-        match num {
-            0 => true,
-            1 => true,
-            _ => false,
-        }
+        matches!(num, 0 | 1)
     }
 
     fn call_as_proc(&mut self, _num: usize, _params: &mut [Variant]) -> bool {
@@ -205,7 +192,7 @@ impl RawAddin for Addin1 {
                         _ => return false,
                     }
                 }
-                ret_value.set_str(buf.as_slice())
+                ret_value.set_str1c(buf.as_slice()).is_ok()
             }
             1 => {
                 for (i, param) in params.iter_mut().enumerate() {
@@ -213,7 +200,7 @@ impl RawAddin for Addin1 {
                         ParamValue::Empty => {
                             if i == 0 {
                                 let s = "Return value".encode_utf16().collect::<Vec<u16>>();
-                                if !param.set_str(&s) {
+                                if param.set_str1c(s.as_slice()).is_err() {
                                     return false;
                                 }
                             } else {

src/addin2.rs

@@ -1,4 +1,4 @@
-use addin1c::{name, MethodInfo, Methods, ParamValue, PropInfo, SimpleAddin, Variant};
+use addin1c::{name, AddinResult, CStr1C, MethodInfo, Methods, PropInfo, SimpleAddin, Variant};
 
 pub struct Addin2 {
     prop1: i32,
@@ -9,13 +9,11 @@ impl Addin2 {
         Addin2 { prop1: 0 }
     }
 
-    fn method1(&mut self, param: &mut Variant, ret_value: &mut Variant) -> bool {
-        let ParamValue::I32(value) = param.get() else {
-            return false;
-        };
+    fn method1(&mut self, param: &mut Variant, ret_value: &mut Variant) -> AddinResult {
+        let value = param.get_i32()?;
         self.prop1 = value;
         ret_value.set_i32(value * 2);
-        true
+        Ok(())
     }
 
     fn method2(
@@ -23,34 +21,27 @@ impl Addin2 {
         param1: &mut Variant,
         param2: &mut Variant,
         ret_value: &mut Variant,
-    ) -> bool {
-        let ParamValue::I32(value1) = param1.get() else {
-            return false;
-        };
-        let ParamValue::I32(value2) = param2.get() else {
-            return false;
-        };
+    ) -> AddinResult {
+        let value1 = param1.get_i32()?;
+        let value2 = param2.get_i32()?;
         self.prop1 = value1 + value2;
         ret_value.set_i32(self.prop1);
-        true
+        Ok(())
     }
 
-    fn set_prop1(&mut self, value: &ParamValue) -> bool {
-        let ParamValue::I32(value) = value else {
-            return false;
-        };
-        self.prop1 = *value;
-        true
+    fn set_prop1(&mut self, value: &Variant) -> AddinResult {
+        self.prop1 = value.get_i32()?;
+        Ok(())
     }
 
-    fn get_prop1(&mut self, value: &mut Variant) -> bool {
+    fn get_prop1(&mut self, value: &mut Variant) -> AddinResult {
         value.set_i32(self.prop1);
-        true
+        Ok(())
     }
 }
 
 impl SimpleAddin for Addin2 {
-    fn name() -> &'static [u16] {
+    fn name() -> &'static CStr1C {
         name!("Class2")
     }
 

src/lib.rs

@@ -7,11 +7,14 @@ use std::{
 };
 
 use addin1::Addin1;
-use addin2::Addin2;
 use addin1c::{create_component, destroy_component, name, AttachType};
+use addin2::Addin2;
 
-pub static mut PLATFORM_CAPABILITIES: AtomicI32 = AtomicI32::new(-1);
+pub static PLATFORM_CAPABILITIES: AtomicI32 = AtomicI32::new(-1);
 
+/// # Safety
+///
+/// Component must be non-null.
 #[allow(non_snake_case)]
 #[no_mangle]
 pub unsafe extern "C" fn GetClassObject(name: *const u16, component: *mut *mut c_void) -> c_long {
@@ -28,6 +31,9 @@ pub unsafe extern "C" fn GetClassObject(name: *const u16, component: *mut *mut c
     }
 }
 
+/// # Safety
+///
+/// Component must be returned from `GetClassObject`, the function must be called once for each component.
 #[allow(non_snake_case)]
 #[no_mangle]
 pub unsafe extern "C" fn DestroyObject(component: *mut *mut c_void) -> c_long {
@@ -43,7 +49,7 @@ pub extern "C" fn GetClassNames() -> *const u16 {
 
 #[allow(non_snake_case)]
 #[no_mangle]
-pub unsafe extern "C" fn SetPlatformCapabilities(capabilities: c_int) -> c_int {
+pub extern "C" fn SetPlatformCapabilities(capabilities: c_int) -> c_int {
     PLATFORM_CAPABILITIES.store(capabilities, Ordering::Relaxed);
     3
 }