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"""
Mixed-module definition for the zlib module.
"""
from pypy.interpreter.mixedmodule import MixedModule
from rpython.rlib import rzlib
class Module(MixedModule):
"""\
The functions in this module allow compression and decompression using the
zlib library, which is based on GNU zip.
adler32(string[, start]) -- Compute an Adler-32 checksum.
compress(string[, level]) -- Compress string, with compression level in 1-9.
compressobj([level]) -- Return a compressor object.
crc32(string[, start]) -- Compute a CRC-32 checksum.
decompress(string,[wbits],[bufsize]) -- Decompresses a compressed string.
decompressobj([wbits]) -- Return a decompressor object.
'wbits' is window buffer size.
Compressor objects support compress() and flush() methods; decompressor
objects support decompress() and flush()."""
interpleveldefs = {
'crc32': 'interp_zlib.crc32',
'adler32': 'interp_zlib.adler32',
'compressobj': 'interp_zlib.Compress',
'decompressobj': 'interp_zlib.Decompress',
'compress': 'interp_zlib.compress',
'decompress': 'interp_zlib.decompress',
'DEF_BUF_SIZE': 'interp_zlib.default_buffer_size(space)',
'__version__': 'space.newtext("1.0")',
'error': 'space.fromcache(interp_zlib.Cache).w_error',
}
appleveldefs = {
}
def setup_after_space_initialization(self):
space = self.space
space.setattr(self, space.wrap('ZLIB_RUNTIME_VERSION'),
space.wrap(rzlib.zlibVersion()))
for _name in """
MAX_WBITS DEFLATED DEF_MEM_LEVEL
Z_BEST_SPEED Z_BEST_COMPRESSION Z_DEFAULT_COMPRESSION
Z_FILTERED Z_HUFFMAN_ONLY Z_DEFAULT_STRATEGY
Z_FINISH Z_NO_FLUSH Z_SYNC_FLUSH Z_FULL_FLUSH
ZLIB_VERSION
""".split():
Module.interpleveldefs[_name] = 'space.wrap(%r)' % (getattr(rzlib, _name),)
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