Merge 6cc3d8023350163e72b83d49981ad2c4b08d39b4 into 0676b21da2827b827ee7cac89e9b27c4aa3c005e

* fix: capture stack checkpoint before pushing args in operator() (#469)

* test: add regression test for operator() python error propagation (#469)

include/pybind11/internal/function.h

@@ -70,6 +70,7 @@ args_proxy interface<Derived>::operator* () const {
 template <typename Derived>
 template <return_value_policy policy, typename... Args>
 object interface<Derived>::operator() (Args&&... args) const {
+    py_StackRef p0 = py_peek(0); // checkpoint before pushing so py_clearexc can safely rewind
     py_push(ptr());
     py_pushnil();
 
@@ -108,7 +109,13 @@ object interface<Derived>::operator() (Args&&... args) const {
 
     (foreach(std::forward<Args>(args)), ...);
 
-    raise_call<py_vectorcall>(argc, kwargsc);
+    if(!py_vectorcall(argc, kwargsc)) {
+        py_matchexc(tp_Exception);
+        object e = object::from_ret();
+        auto what = py_formatexc();
+        py_clearexc(p0);
+        throw python_error(what, std::move(e));
+    }
 
     return object::from_ret();
 }

include/pybind11/tests/error.cpp

@@ -79,3 +79,18 @@ TEST_F(PYBIND11_TEST, exception_cpp_to_python) {
     TEST_EXCEPTION(attribute_error, AttributeError);
     TEST_EXCEPTION(runtime_error, RuntimeError);
 }
+
+// Regression test: operator() must throw python_error instead of crashing when Python raises (#469)
+TEST_F(PYBIND11_TEST, operator_call_propagates_python_error) {
+    py::exec("def f(x):\n    raise ValueError('intentional error')");
+    py::object fn = py::eval("f");
+
+    bool caught = false;
+    try {
+        fn(py::int_(1));
+    } catch(py::python_error& e) {
+        caught = true;
+        EXPECT_TRUE(e.match(tp_ValueError));
+    }
+    EXPECT_TRUE(caught);
+}

plugins/flutter/pocketpy/lib/pocketpy_bindings_generated.dart

@@ -1530,9 +1530,9 @@ class PocketpyBindings {
               ffi.NativeFunction<
                   ffi.Bool Function(py_Ref self, py_Name name)>>)>();
 
-  /// Get the current `function` object on the stack.
+  /// Get the current `Callable` object on the stack of the most recent vectorcall.
   /// Return `NULL` if not available.
-  /// NOTE: This function should be placed at the beginning of your decl-based bindings.
+  /// NOTE: This function should be placed at the beginning of your bindings or you will get wrong result.
   py_StackRef py_inspect_currentfunction() {
     return _py_inspect_currentfunction();
   }
@@ -3635,6 +3635,22 @@ class PocketpyBindings {
   late final _py_newvec3i =
       _py_newvec3iPtr.asFunction<void Function(py_OutRef, c11_vec3i)>();
 
+  void py_newvec4i(
+    py_OutRef out,
+    c11_vec4i arg1,
+  ) {
+    return _py_newvec4i(
+      out,
+      arg1,
+    );
+  }
+
+  late final _py_newvec4iPtr =
+      _lookup<ffi.NativeFunction<ffi.Void Function(py_OutRef, c11_vec4i)>>(
+          'py_newvec4i');
+  late final _py_newvec4i =
+      _py_newvec4iPtr.asFunction<void Function(py_OutRef, c11_vec4i)>();
+
   void py_newcolor32(
     py_OutRef out,
     c11_color32 arg1,
@@ -3715,6 +3731,19 @@ class PocketpyBindings {
   late final _py_tovec3i =
       _py_tovec3iPtr.asFunction<c11_vec3i Function(py_Ref)>();
 
+  c11_vec4i py_tovec4i(
+    py_Ref self,
+  ) {
+    return _py_tovec4i(
+      self,
+    );
+  }
+
+  late final _py_tovec4iPtr =
+      _lookup<ffi.NativeFunction<c11_vec4i Function(py_Ref)>>('py_tovec4i');
+  late final _py_tovec4i =
+      _py_tovec4iPtr.asFunction<c11_vec4i Function(py_Ref)>();
+
   ffi.Pointer<c11_mat3x3> py_tomat3x3(
     py_Ref self,
   ) {
@@ -3932,10 +3961,32 @@ final class UnnamedUnion1 extends ffi.Union {
   @ffi.Int64()
   external int _i64;
 
+  @ffi.Double()
+  external double _f64;
+
+  @ffi.Bool()
+  external bool _bool;
+
+  external py_CFunction _cfunc;
+
+  external ffi.Pointer<ffi.Void> _obj;
+
+  external ffi.Pointer<ffi.Void> _ptr;
+
   @ffi.Array.multi([16])
   external ffi.Array<ffi.Char> _chars;
 }
 
+/// Native function signature.
+/// @param argc number of arguments.
+/// @param argv array of arguments. Use `py_arg(i)` macro to get the i-th argument.
+/// @return `true` if the function is successful or `false` if an exception is raised.
+typedef py_CFunction = ffi.Pointer<
+    ffi.NativeFunction<ffi.Bool Function(ffi.Int argc, py_StackRef argv)>>;
+
+/// A specific location in the value stack of the VM.
+typedef py_StackRef = ffi.Pointer<py_TValue>;
+
 /// A string view type. It is helpful for passing strings which are not null-terminated.
 final class c11_sv extends ffi.Struct {
   external ffi.Pointer<ffi.Char> data;
@@ -4027,22 +4078,12 @@ typedef py_TraceFunc = ffi.Pointer<
 /// An output reference for returning a value. Only use this for function arguments.
 typedef py_OutRef = ffi.Pointer<py_TValue>;
 
-/// A specific location in the value stack of the VM.
-typedef py_StackRef = ffi.Pointer<py_TValue>;
-
 /// A 64-bit integer type. Corresponds to `int` in python.
 typedef py_i64 = ffi.Int64;
 
 /// A 64-bit floating-point type. Corresponds to `float` in python.
 typedef py_f64 = ffi.Double;
 
-/// Native function signature.
-/// @param argc number of arguments.
-/// @param argv array of arguments. Use `py_arg(i)` macro to get the i-th argument.
-/// @return `true` if the function is successful or `false` if an exception is raised.
-typedef py_CFunction = ffi.Pointer<
-    ffi.NativeFunction<ffi.Bool Function(ffi.Int argc, py_StackRef argv)>>;
-
 /// A pointer that represents a python identifier. For fast name resolution.
 typedef py_Name = ffi.Pointer<py_OpaqueName>;
 
@@ -4125,9 +4166,30 @@ final class UnnamedStruct4 extends ffi.Struct {
   external int z;
 }
 
-final class c11_color32 extends ffi.Union {
+final class c11_vec4i extends ffi.Union {
   external UnnamedStruct5 unnamed;
 
+  @ffi.Array.multi([4])
+  external ffi.Array<ffi.Int> data;
+}
+
+final class UnnamedStruct5 extends ffi.Struct {
+  @ffi.Int()
+  external int x;
+
+  @ffi.Int()
+  external int y;
+
+  @ffi.Int()
+  external int z;
+
+  @ffi.Int()
+  external int w;
+}
+
+final class c11_color32 extends ffi.Union {
+  external UnnamedStruct6 unnamed;
+
   @ffi.Array.multi([4])
   external ffi.Array<ffi.UnsignedChar> data;
 
@@ -4135,7 +4197,7 @@ final class c11_color32 extends ffi.Union {
   external int u32;
 }
 
-final class UnnamedStruct5 extends ffi.Struct {
+final class UnnamedStruct6 extends ffi.Struct {
   @ffi.UnsignedChar()
   external int r;
 
@@ -4150,7 +4212,7 @@ final class UnnamedStruct5 extends ffi.Struct {
 }
 
 final class c11_mat3x3 extends ffi.Union {
-  external UnnamedStruct6 unnamed;
+  external UnnamedStruct7 unnamed;
 
   @ffi.Array.multi([3, 3])
   external ffi.Array<ffi.Array<ffi.Float>> m;
@@ -4159,7 +4221,7 @@ final class c11_mat3x3 extends ffi.Union {
   external ffi.Array<ffi.Float> data;
 }
 
-final class UnnamedStruct6 extends ffi.Struct {
+final class UnnamedStruct7 extends ffi.Struct {
   @ffi.Float()
   external double _11;
 
@@ -4306,13 +4368,14 @@ abstract class py_PredefinedType {
   static const int tp_vec3 = 71;
   static const int tp_vec2i = 72;
   static const int tp_vec3i = 73;
-  static const int tp_mat3x3 = 74;
-  static const int tp_color32 = 75;
+  static const int tp_vec4i = 74;
+  static const int tp_mat3x3 = 75;
+  static const int tp_color32 = 76;
 
   /// array2d
-  static const int tp_array2d_like = 76;
-  static const int tp_array2d_like_iterator = 77;
-  static const int tp_array2d = 78;
-  static const int tp_array2d_view = 79;
-  static const int tp_chunked_array2d = 80;
+  static const int tp_array2d_like = 77;
+  static const int tp_array2d_like_iterator = 78;
+  static const int tp_array2d = 79;
+  static const int tp_array2d_view = 80;
+  static const int tp_chunked_array2d = 81;
 }

python/cmath.py

@@ -134,10 +134,10 @@ def atan(z: complex):
     return 1j / 2 * log((1 - 1j * z) / (1 + 1j * z))
 
 def cos(z: complex):
-    return (exp(z) + exp(-z)) / 2
+    return (exp(1j * z) + exp(-1j * z)) / 2
 
 def sin(z: complex):
-    return (exp(z) - exp(-z)) / (2 * 1j)
+    return (exp(1j * z) - exp(-1j * z)) / (2 * 1j)
 
 def tan(z: complex):
     return sin(z) / cos(z)

src/interpreter/dll.c

@@ -10,6 +10,8 @@
 
 #else
 #include <dlfcn.h>
+#include <stdlib.h>
+#include <string.h>
 #endif
 
 typedef bool (*py_module_initialize_t)() PY_RAISE PY_RETURN;
@@ -21,14 +23,44 @@ int load_module_from_dll_desktop_only(const char* path) PY_RAISE PY_RETURN {
     if(dll == NULL) return 0;
     py_module_initialize_t f_init = (py_module_initialize_t)GetProcAddress(dll, f_init_name);
 #else
-    void* dll = dlopen(path, RTLD_LAZY);
+    void* dll = NULL;
+    // On Linux, dlopen doesn't automatically add .so suffix like Windows does with .dll
+    // Also, CMake typically generates libXxx.so instead of Xxx.so
+    // Try: path.so, libpath.so, then the original path
+    char* path_with_so = NULL;
+    char* path_with_lib = NULL;
+    size_t path_len = strlen(path);
+    
+    // Try path.so
+    path_with_so = py_malloc(path_len + 4); // .so + null terminator
+    if(path_with_so != NULL) {
+        strcpy(path_with_so, path);
+        strcat(path_with_so, ".so");
+        dll = dlopen(path_with_so, RTLD_LAZY);
+        py_free(path_with_so);
+    }
+    
+    // Try libpath.so if path.so didn't work
+    if(dll == NULL) {
+        path_with_lib = py_malloc(path_len + 7); // lib + .so + null terminator
+        if(path_with_lib != NULL) {
+            strcpy(path_with_lib, "lib");
+            strcat(path_with_lib, path);
+            strcat(path_with_lib, ".so");
+            dll = dlopen(path_with_lib, RTLD_LAZY);
+            py_free(path_with_lib);
+        }
+    }
+    
+    // Fallback to original path
+    if(dll == NULL) {
+        dll = dlopen(path, RTLD_LAZY);
+    }
+    
     if(dll == NULL) return 0;
     py_module_initialize_t f_init = (py_module_initialize_t)dlsym(dll, f_init_name);
 #endif
-    if(f_init == NULL) {
-        RuntimeError("%s() not found in '%s'", f_init_name, path);
-        return -1;
-    }
+    if(f_init == NULL) return 0;
     bool success = f_init();
     if(!success) return -1;
     return 1;

src/modules/os.c

@@ -215,7 +215,31 @@ static bool io_FileIO_flush(int argc, py_Ref argv) {
     py_newnone(py_retval());
     return true;
 }
-
+static bool io_FileIO_readlines(int argc, py_Ref argv) {
+    PY_CHECK_ARGC(1);
+    io_FileIO* ud = py_touserdata(py_arg(0));
+    py_newlist(py_retval()); 
+    char* buf = NULL;
+    size_t buf_size = 0;
+    size_t len = 0;
+    int c;
+    while(true) {
+        len = 0;
+        while((c = fgetc(ud->file)) != EOF) {
+            if(len + 1 >= buf_size) {
+                buf_size = (buf_size == 0) ? 64 : buf_size * 2;
+                buf = PK_REALLOC(buf, buf_size);
+            }
+            buf[len++] = (char)c;
+            if(c == '\n') break;
+        }
+        if(len == 0) break;
+        py_newstrv(py_getreg(0), (c11_sv){buf, len});
+        py_list_append(py_retval(), py_getreg(0));
+    }
+    if(buf) PK_FREE(buf);
+    return true;
+}
 void pk__add_module_io() {
     py_Ref mod = py_newmodule("io");
 
@@ -230,6 +254,7 @@ void pk__add_module_io() {
     py_bindmethod(FileIO, "tell", io_FileIO_tell);
     py_bindmethod(FileIO, "seek", io_FileIO_seek);
     py_bindmethod(FileIO, "flush", io_FileIO_flush);
+    py_bindmethod(FileIO, "readlines", io_FileIO_readlines);
 
     py_newint(py_emplacedict(mod, py_name("SEEK_SET")), SEEK_SET);
     py_newint(py_emplacedict(mod, py_name("SEEK_CUR")), SEEK_CUR);