Merge branch 'pybind:master' into master

.github/workflows/ci.yml

@@ -45,7 +45,7 @@ jobs:
             args: >
               -DPYBIND11_FINDPYTHON=ON
               -DCMAKE_CXX_FLAGS="-D_=1"
-          - runs-on: windows-latest
+          - runs-on: windows-2019
             python: '3.6'
             args: >
               -DPYBIND11_FINDPYTHON=ON
@@ -717,7 +717,7 @@ jobs:
             args: -DCMAKE_CXX_STANDARD=17
 
     name: "🐍 ${{ matrix.python }} • MSVC 2019 • x86 ${{ matrix.args }}"
-    runs-on: windows-latest
+    runs-on: windows-2019
 
     steps:
     - uses: actions/checkout@v2

.pre-commit-config.yaml

@@ -71,7 +71,7 @@ repos:
 
 # Autoremoves unused imports
 - repo: https://github.com/hadialqattan/pycln
-  rev: "v1.1.0"
+  rev: "v1.2.0"
   hooks:
   - id: pycln
 
@@ -163,6 +163,7 @@ repos:
 
 # Clang format the codebase automatically
 - repo: https://github.com/pre-commit/mirrors-clang-format
-  rev: "v13.0.0"
+  rev: "v13.0.1"
   hooks:
   - id: clang-format
+    types_or: [c++, c, cuda]

include/pybind11/cast.h

@@ -380,7 +380,7 @@ struct string_caster {
             return false;
         }
         if (!PyUnicode_Check(load_src.ptr())) {
-            return load_bytes(load_src);
+            return load_raw(load_src);
         }
 
         // For UTF-8 we avoid the need for a temporary `bytes` object by using
@@ -458,26 +458,37 @@ private:
 #endif
     }
 
-    // When loading into a std::string or char*, accept a bytes object as-is (i.e.
+    // When loading into a std::string or char*, accept a bytes/bytearray object as-is (i.e.
     // without any encoding/decoding attempt).  For other C++ char sizes this is a no-op.
     // which supports loading a unicode from a str, doesn't take this path.
     template <typename C = CharT>
-    bool load_bytes(enable_if_t<std::is_same<C, char>::value, handle> src) {
+    bool load_raw(enable_if_t<std::is_same<C, char>::value, handle> src) {
         if (PYBIND11_BYTES_CHECK(src.ptr())) {
             // We were passed raw bytes; accept it into a std::string or char*
             // without any encoding attempt.
             const char *bytes = PYBIND11_BYTES_AS_STRING(src.ptr());
-            if (bytes) {
+            if (!bytes) {
-                value = StringType(bytes, (size_t) PYBIND11_BYTES_SIZE(src.ptr()));
+                pybind11_fail("Unexpected PYBIND11_BYTES_AS_STRING() failure.");
-                return true;
             }
+            value = StringType(bytes, (size_t) PYBIND11_BYTES_SIZE(src.ptr()));
+            return true;
+        }
+        if (PyByteArray_Check(src.ptr())) {
+            // We were passed a bytearray; accept it into a std::string or char*
+            // without any encoding attempt.
+            const char *bytearray = PyByteArray_AsString(src.ptr());
+            if (!bytearray) {
+                pybind11_fail("Unexpected PyByteArray_AsString() failure.");
+            }
+            value = StringType(bytearray, (size_t) PyByteArray_Size(src.ptr()));
+            return true;
         }
 
         return false;
     }
 
     template <typename C = CharT>
-    bool load_bytes(enable_if_t<!std::is_same<C, char>::value, handle>) {
+    bool load_raw(enable_if_t<!std::is_same<C, char>::value, handle>) {
         return false;
     }
 };

tests/test_builtin_casters.py

@@ -133,6 +133,15 @@ def test_bytes_to_string():
     assert m.string_length("💩".encode()) == 4
 
 
+def test_bytearray_to_string():
+    """Tests the ability to pass bytearray to C++ string-accepting functions"""
+    assert m.string_length(bytearray(b"Hi")) == 2
+    assert m.strlen(bytearray(b"bytearray")) == 9
+    assert m.string_length(bytearray()) == 0
+    assert m.string_length(bytearray("🦜", "utf-8", "strict")) == 4
+    assert m.string_length(bytearray(b"\x80")) == 1
+
+
 @pytest.mark.skipif(not hasattr(m, "has_string_view"), reason="no <string_view>")
 def test_string_view(capture):
     """Tests support for C++17 string_view arguments and return values"""