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# Copyright (C) 2016-present the asyncpg authors and contributors
# <see AUTHORS file>
#
# This module is part of asyncpg and is released under
# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
cdef inline as_pg_string_and_size(
CodecContext settings, obj, char **cstr, ssize_t *size):
if not cpython.PyUnicode_Check(obj):
raise TypeError('expected str, got {}'.format(type(obj).__name__))
if settings.is_encoding_utf8():
cstr[0] = <char*>cpythonx.PyUnicode_AsUTF8AndSize(obj, size)
else:
encoded = settings.get_text_codec().encode(obj)[0]
cpython.PyBytes_AsStringAndSize(encoded, cstr, size)
if size[0] > 0x7fffffff:
raise ValueError('string too long')
cdef text_encode(CodecContext settings, WriteBuffer buf, obj):
cdef:
char *str
ssize_t size
as_pg_string_and_size(settings, obj, &str, &size)
buf.write_int32(<int32_t>size)
buf.write_cstr(str, size)
cdef inline decode_pg_string(CodecContext settings, const char* data,
ssize_t len):
if settings.is_encoding_utf8():
# decode UTF-8 in strict mode
return cpython.PyUnicode_DecodeUTF8(data, len, NULL)
else:
bytes = cpython.PyBytes_FromStringAndSize(data, len)
return settings.get_text_codec().decode(bytes)[0]
cdef text_decode(CodecContext settings, FRBuffer *buf):
cdef ssize_t buf_len = buf.len
return decode_pg_string(settings, frb_read_all(buf), buf_len)
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