shiboken6: Add a debug operator for Py_Buffer

Task-number: PYSIDE-1563
Change-Id: I9ad443b9dcb50dfac2f3b7a3c8bea83faefa73de
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
(cherry picked from commit 8760ee9ad9ab93aaa1a5a519cbfbd2d5e04fbac5)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 24 insertions, 0 deletions

diff --git a/sources/shiboken6/libshiboken/helper.cpp b/sources/shiboken6/libshiboken/helper.cpp
index 3f8d7b8d0..02f8177f3 100644
--- a/sources/shiboken6/libshiboken/helper.cpp
+++ b/sources/shiboken6/libshiboken/helper.cpp
@@ -141,6 +141,10 @@ debugPyTypeObject::debugPyTypeObject(const PyTypeObject *o) : m_object(o)
 {
 }
 
+debugPyBuffer::debugPyBuffer(const Py_buffer &b) : m_buffer(b)
+{
+}
+
 std::ostream &operator<<(std::ostream &str, const debugPyTypeObject &o)
 {
     str << "PyTypeObject(";
@@ -157,6 +161,18 @@ std::ostream &operator<<(std::ostream &str, const debugPyObject &o)
     return str;
 }
 
+std::ostream &operator<<(std::ostream &str, const debugPyBuffer &b)
+{
+    str << "PyBuffer(buf=" << b.m_buffer.buf << ", len="
+        << b.m_buffer.len << ", itemsize=" << b.m_buffer.itemsize
+        << ", readonly=" << b.m_buffer.readonly << ", ndim=" << b.m_buffer.ndim;
+    if (b.m_buffer.format)
+        str << ", format=\"" << b.m_buffer.format << '"';
+    str << ", shape=" << b.m_buffer.shape << ", strides=" << b.m_buffer.strides
+        << ", suboffsets=" << b.m_buffer.suboffsets << ')';
+    return str;
+}
+
 #ifdef _WIN32
 // Converts a Unicode string to a string encoded in the Windows console's
 // code page via wchar_t for use with argv (PYSIDE-1425).
diff --git a/sources/shiboken6/libshiboken/helper.h b/sources/shiboken6/libshiboken/helper.h
index 1a2c2e29d..8221d68b0 100644
--- a/sources/shiboken6/libshiboken/helper.h
+++ b/sources/shiboken6/libshiboken/helper.h
@@ -115,8 +115,16 @@ struct LIBSHIBOKEN_API debugPyTypeObject
     const PyTypeObject *m_object;
 };
 
+struct LIBSHIBOKEN_API debugPyBuffer
+{
+    explicit debugPyBuffer(const Py_buffer &b);
+
+    const Py_buffer &m_buffer;
+};
+
 LIBSHIBOKEN_API std::ostream &operator<<(std::ostream &str, const debugPyObject &o);
 LIBSHIBOKEN_API std::ostream &operator<<(std::ostream &str, const debugPyTypeObject &o);
+LIBSHIBOKEN_API std::ostream &operator<<(std::ostream &str, const debugPyBuffer &b);
 
 } // namespace Shiboken