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Write the head of nested BSON elements in one helper

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Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann committed 2026-10-09 23:27:34 +02:00
1 parent c76d838cd5
commit b9c46c5e8d
2 files changed
+34 -8
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include/nlohmann/detail/output/binary_writer.hpp
+17 -4
View File
@@ -1652,6 +1652,21 @@ class binary_writer
}
}
/*!
@brief Writes the head of a BSON element with key @a name whose value is
the object or array @a j: its type, key, and @a size
Called while the key is in scope: an object key is a key_type, which
may only convert to a temporary string_t, so it cannot be kept by
pointer until after the loop over the entries.
*/
void write_bson_nested_head(const string_t& name, const BasicJsonType& j,
const std::size_t size)
{
write_bson_entry_header(name, j.is_object() ? 0x03 : 0x04);
write_number<std::int32_t>(to_bson_length(size), true);
}
/// @brief an object or array of the BSON document being sized or written
struct bson_frame
{
@@ -1826,8 +1841,7 @@ class binary_writer
++current.member;
if (el.second.is_structured())
{
write_bson_entry_header(el.first, el.second.is_object() ? 0x03 : 0x04);
write_number<std::int32_t>(to_bson_length(nested_sizes[next_size++]), true);
write_bson_nested_head(el.first, el.second, nested_sizes[next_size++]);
nested = &el.second;
}
else
@@ -1846,8 +1860,7 @@ class binary_writer
++current.index;
if (el.is_structured())
{
write_bson_entry_header(index_name, el.is_object() ? 0x03 : 0x04);
write_number<std::int32_t>(to_bson_length(nested_sizes[next_size++]), true);
write_bson_nested_head(index_name, el, nested_sizes[next_size++]);
nested = &el;
}
else
single_include/nlohmann/json.hpp
+17 -4
View File
@@ -23161,6 +23161,21 @@ class binary_writer
}
}
/*!
@brief Writes the head of a BSON element with key @a name whose value is
the object or array @a j: its type, key, and @a size
Called while the key is in scope: an object key is a key_type, which
may only convert to a temporary string_t, so it cannot be kept by
pointer until after the loop over the entries.
*/
void write_bson_nested_head(const string_t& name, const BasicJsonType& j,
const std::size_t size)
{
write_bson_entry_header(name, j.is_object() ? 0x03 : 0x04);
write_number<std::int32_t>(to_bson_length(size), true);
}
/// @brief an object or array of the BSON document being sized or written
struct bson_frame
{
@@ -23335,8 +23350,7 @@ class binary_writer
++current.member;
if (el.second.is_structured())
{
write_bson_entry_header(el.first, el.second.is_object() ? 0x03 : 0x04);
write_number<std::int32_t>(to_bson_length(nested_sizes[next_size++]), true);
write_bson_nested_head(el.first, el.second, nested_sizes[next_size++]);
nested = &el.second;
}
else
@@ -23355,8 +23369,7 @@ class binary_writer
++current.index;
if (el.is_structured())
{
write_bson_entry_header(index_name, el.is_object() ? 0x03 : 0x04);
write_number<std::int32_t>(to_bson_length(nested_sizes[next_size++]), true);
write_bson_nested_head(index_name, el, nested_sizes[next_size++]);
nested = &el;
}
else