Пример #1
0
 def fn():
     try:
         runpack('i', data)
     except StructError:
         return True
     else:
         return False
Пример #2
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def _EndRecData(fpin):
    """Return data from the "End of Central Directory" record, or None.

    The data is a list of the nine items in the ZIP "End of central dir"
    record followed by a tenth item, the file seek offset of this record."""
    fpin.seek(-22, 2)  # Assume no archive comment.
    filesize = fpin.tell() + 22  # Get file size
    data = fpin.readall()
    start = len(data) - 2
    if start <= 0:
        return  # Error, return None
    if data[0:4] == stringEndArchive and data[start:] == "\000\000":
        endrec = runpack(structEndArchive, data)
        return EndRecStruct(endrec, "", filesize - 22)
    # Search the last END_BLOCK bytes of the file for the record signature.
    # The comment is appended to the ZIP file and has a 16 bit length.
    # So the comment may be up to 64K long.  We limit the search for the
    # signature to a few Kbytes at the end of the file for efficiency.
    # also, the signature must not appear in the comment.
    END_BLOCK = min(filesize, 1024 * 4)
    fpin.seek(filesize - END_BLOCK, 0)
    data = fpin.readall()
    start = data.rfind(stringEndArchive)
    if start >= 0:  # Correct signature string was found
        endrec = runpack(structEndArchive, data[start:start + 22])
        comment = data[start + 22:]
        if endrec[7] == len(comment):  # Comment length checks out
            # Append the archive comment and start offset
            return EndRecStruct(endrec, comment, filesize - END_BLOCK + start)
    return  # Error, return None
Пример #3
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def _EndRecData(fpin):
    """Return data from the "End of Central Directory" record, or None.

    The data is a list of the nine items in the ZIP "End of central dir"
    record followed by a tenth item, the file seek offset of this record."""
    fpin.seek(-22, 2)               # Assume no archive comment.
    filesize = fpin.tell() + 22     # Get file size
    data = fpin.readall()
    start = len(data)-2
    if start <= 0:
        return    # Error, return None
    if data[0:4] == stringEndArchive and data[start:] == "\000\000":
        endrec = runpack(structEndArchive, data)
        return EndRecStruct(endrec, "", filesize - 22)
    # Search the last END_BLOCK bytes of the file for the record signature.
    # The comment is appended to the ZIP file and has a 16 bit length.
    # So the comment may be up to 64K long.  We limit the search for the
    # signature to a few Kbytes at the end of the file for efficiency.
    # also, the signature must not appear in the comment.
    END_BLOCK = min(filesize, 1024 * 4)
    fpin.seek(filesize - END_BLOCK, 0)
    data = fpin.readall()
    start = data.rfind(stringEndArchive)
    if start >= 0:     # Correct signature string was found
        endrec = runpack(structEndArchive, data[start:start+22])
        comment = data[start+22:]
        if endrec[7] == len(comment):     # Comment length checks out
            # Append the archive comment and start offset
            return EndRecStruct(endrec, comment, filesize - END_BLOCK + start)
    return      # Error, return None
Пример #4
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 def _GetContents(self, fp):
     endrec = _EndRecData(fp)
     if not endrec:
         raise BadZipfile, "File is not a zip file"
     size_cd = endrec.stuff[5]             # bytes in central directory
     offset_cd = endrec.stuff[6]   # offset of central directory
     self.comment = endrec.comment
     x = endrec.filesize - size_cd
     concat = x - offset_cd
     self.start_dir = offset_cd + concat
     fp.seek(self.start_dir, 0)
     total = 0
     while total < size_cd:
         centdir = fp.read(46)
         total = total + 46
         if centdir[0:4] != stringCentralDir:
             raise BadZipfile, "Bad magic number for central directory"
         centdir = runpack(structCentralDir, centdir)
         filename = fp.read(centdir[_CD_FILENAME_LENGTH])
         # Create ZipInfo instance to store file information
         x = RZipInfo(filename)
         x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
         x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
         total = (total + centdir[_CD_FILENAME_LENGTH]
                  + centdir[_CD_EXTRA_FIELD_LENGTH]
                  + centdir[_CD_COMMENT_LENGTH])
         x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET] + concat
         # file_offset must be computed below...
         (x.create_version, x.create_system, x.extract_version, x.reserved,
             x.flag_bits, x.compress_type, t, d,
             crc, x.compress_size, x.file_size) = centdir[1:12]
         x.CRC = r_uint(crc) & r_uint(0xffffffff)
         x.dostime = t
         x.dosdate = d
         x.volume, x.internal_attr, x.external_attr = centdir[15:18]
         # Convert date/time code to (year, month, day, hour, min, sec)
         x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F,
                                  t>>11, (t>>5)&0x3F, (t&0x1F) * 2 )
         self.filelist.append(x)
         self.NameToInfo[x.filename] = x
     for data in self.filelist:
         fp.seek(data.header_offset, 0)
         fheader = fp.read(30)
         if fheader[0:4] != stringFileHeader:
             raise BadZipfile, "Bad magic number for file header"
         fheader = runpack(structFileHeader, fheader)
         # file_offset is computed here, since the extra field for
         # the central directory and for the local file header
         # refer to different fields, and they can have different
         # lengths
         data.file_offset = (data.header_offset + 30
                             + fheader[_FH_FILENAME_LENGTH]
                             + fheader[_FH_EXTRA_FIELD_LENGTH])
         fname = fp.read(fheader[_FH_FILENAME_LENGTH])
         if fname != data.orig_filename:
             raise BadZipfile, \
                   'File name in directory "%s" and header "%s" differ.' % (
                       data.orig_filename, fname)
     fp.seek(self.start_dir, 0)
Пример #5
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 def _GetContents(self, fp):
     endrec = _EndRecData(fp)
     if not endrec:
         raise BadZipfile("File is not a zip file")
     size_cd = endrec.stuff[5]  # bytes in central directory
     offset_cd = endrec.stuff[6]  # offset of central directory
     self.comment = endrec.comment
     x = endrec.filesize - size_cd
     concat = x - offset_cd
     self.start_dir = offset_cd + concat
     fp.seek(self.start_dir, 0)
     total = 0
     while total < size_cd:
         centdir = fp.read(46)
         total = total + 46
         if centdir[0:4] != stringCentralDir:
             raise BadZipfile("Bad magic number for central directory")
         centdir = runpack(structCentralDir, centdir)
         filename = fp.read(centdir[_CD_FILENAME_LENGTH])
         # Create ZipInfo instance to store file information
         x = RZipInfo(filename)
         x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH])
         x.comment = fp.read(centdir[_CD_COMMENT_LENGTH])
         total = (total + centdir[_CD_FILENAME_LENGTH] +
                  centdir[_CD_EXTRA_FIELD_LENGTH] +
                  centdir[_CD_COMMENT_LENGTH])
         x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET] + concat
         # file_offset must be computed below...
         (x.create_version, x.create_system, x.extract_version, x.reserved,
          x.flag_bits, x.compress_type, t, d, crc, x.compress_size,
          x.file_size) = centdir[1:12]
         x.CRC = r_uint(crc) & r_uint(0xffffffff)
         x.dostime = t
         x.dosdate = d
         x.volume, x.internal_attr, x.external_attr = centdir[15:18]
         # Convert date/time code to (year, month, day, hour, min, sec)
         x.date_time = ((d >> 9) + 1980, (d >> 5) & 0xF, d & 0x1F, t >> 11,
                        (t >> 5) & 0x3F, (t & 0x1F) * 2)
         self.filelist.append(x)
         self.NameToInfo[x.filename] = x
     for data in self.filelist:
         fp.seek(data.header_offset, 0)
         fheader = fp.read(30)
         if fheader[0:4] != stringFileHeader:
             raise BadZipfile("Bad magic number for file header")
         fheader = runpack(structFileHeader, fheader)
         # file_offset is computed here, since the extra field for
         # the central directory and for the local file header
         # refer to different fields, and they can have different
         # lengths
         data.file_offset = (data.header_offset + 30 +
                             fheader[_FH_FILENAME_LENGTH] +
                             fheader[_FH_EXTRA_FIELD_LENGTH])
         fname = fp.read(fheader[_FH_FILENAME_LENGTH])
         if fname != data.orig_filename:
             raise BadZipfile('File name in directory "%s" and '
                              'header "%s" differ.' %
                              (data.orig_filename, fname))
     fp.seek(self.start_dir, 0)
Пример #6
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def unpack_longlong2float(fmtiter):
    from rpython.rlib.rstruct.runpack import runpack
    from rpython.rlib.longlong2float import longlong2float
    s = fmtiter.read(8)
    llval = runpack('q', s) # this is a bit recursive, I know
    doubleval = longlong2float(llval)
    fmtiter.appendobj(doubleval)
Пример #7
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def unpack_longlong2float(fmtiter):
    from rpython.rlib.rstruct.runpack import runpack
    from rpython.rlib.longlong2float import longlong2float
    s = fmtiter.read(8)
    llval = runpack('q', s)  # this is a bit recursive, I know
    doubleval = longlong2float(llval)
    fmtiter.appendobj(doubleval)
Пример #8
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 def read_int(self):
     if self.pos + LONG_SIZE > self.lgt:
         raise UnserializerException
     stop = self.pos + LONG_SIZE
     assert stop >= 0
     res = runpack('l', self.repr[self.pos:stop])
     self.pos += LONG_SIZE
     return res
Пример #9
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 def read_int(self):
     if self.pos + LONG_SIZE > self.lgt:
         raise UnserializerException
     stop = self.pos + LONG_SIZE
     assert stop >= 0
     res = runpack('l', self.repr[self.pos:stop])
     self.pos += LONG_SIZE
     return res
Пример #10
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    def sys_call(self, name, arguments):
        n = intmask(runpack('>Q', self.fd.read(8)))
        expected_name = self.fd.read(n)

        n = intmask(runpack('>Q', self.fd.read(8)))
        expected_arguments = [data.load(self.fd) for i in xrange(n)]

        n = intmask(runpack('>Q', self.fd.read(8)))
        return_values = [data.load(self.fd) for i in xrange(n)]

        assert expected_name == name
        assert len(expected_arguments) == len(arguments)
        for i in xrange(len(expected_arguments)):
            expected = expected_arguments[i]
            arg = arguments[i]
            if not expected.eq(arg):
                raise Exception('expected %s to equal %s' % (expected, arg))
        return return_values
Пример #11
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def read_trace(fd):
    trace = []
    try:
        while True:
            b = fd.read(8)
            if not b:
                break
            n = runpack('>Q', b)
            name = fd.read(n)

            n = runpack('>Q', fd.read(8))
            arguments = [data.load(fd) for i in xrange(n)]

            n = runpack('>Q', fd.read(8))
            return_values = [data.load(fd) for i in xrange(n)]

            trace.append((name, arguments, return_values))
    except:
        pass
    return trace
Пример #12
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def detect_vsx_linux():
    try:
        fd = os.open("/proc/self/auxv", os.O_RDONLY, 0644)
        try:
            while True:
                buf = os.read(fd, 8)
                buf2 = os.read(fd, 8)
                if not buf or not buf2:
                    break
                key = runpack("L", buf)
                value = runpack("L", buf2)
                if key == AT_HWCAP:
                    if value & PPC_FEATURE_HAS_ALTIVEC:
                        return True
                if key == AT_NULL:
                    return False
        finally:
            os.close(fd)
    except OSError:
        pass
    return False
Пример #13
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 def from_bytes(self, data):
     #shdr_list = struct.unpack( ElfSectionHeader.FORMAT, data )
     shdr_list = runpack(ElfSectionHeader.FORMAT, data)
     self.name = shdr_list[0]
     self.type = shdr_list[1]
     self.flags = shdr_list[2]
     self.addr = shdr_list[3]
     self.offset = shdr_list[4]
     self.size = shdr_list[5]
     self.link = shdr_list[6]
     self.info = shdr_list[7]
     self.addralign = shdr_list[8]
     self.entsize = shdr_list[9]
Пример #14
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    def TSETM(self, args, space):
        """
        A: base, D: *num
        (A-1)[D], (A-1)[D+1], ... = A, A+1, ...

        *num is the index to a num constant that's a float
        only use first 32 bit of mantissa
        """
        w_table = self.registers[args[0] - 1]
        index = self.get_num_constant(args[1])
        packed = []
        pack_float(packed, index, 8, True)
        index = runpack('>i', packed[0][4:])
        for i in xrange(0, len(self.multires)):
            w_table.set(W_Num(index + i), self.multires[i])
Пример #15
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    def TSETM(self, args, space):
        """
        A: base, D: *num
        (A-1)[D], (A-1)[D+1], ... = A, A+1, ...

        *num is the index to a num constant that's a float
        only use first 32 bit of mantissa
        """
        w_table = self.registers[args[0]-1]
        index = self.get_num_constant(args[1])
        packed = []
        pack_float(packed, index, 8, True)
        index = runpack('>i', packed[0][4:])
        for i in xrange(0, len(self.multires)):
            w_table.set(W_Num(index+i), self.multires[i])
Пример #16
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 def from_bytes(self, data):
     #ehdr_list = struct.unpack( ElfHeader.FORMAT, data )
     ehdr_list = runpack(ElfHeader.FORMAT, data)
     self.ident = ehdr_list[0]
     self.type = ehdr_list[1]
     self.machine = ehdr_list[2]
     self.version = ehdr_list[3]
     self.entry = ehdr_list[4]
     self.phoff = ehdr_list[5]
     self.shoff = ehdr_list[6]
     self.flags = ehdr_list[7]
     self.ehsize = ehdr_list[8]
     self.phentsize = ehdr_list[9]
     self.phnum = ehdr_list[10]
     self.shentsize = ehdr_list[11]
     self.shnum = ehdr_list[12]
     self.shstrndx = ehdr_list[13]
Пример #17
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 def fn():
     return runpack(">d", "testtest")
Пример #18
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 def fn():
     return runpack(fmt, data)
Пример #19
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 def fn():
     return runpack('sll', 'a'+pad+'\x03'+pad+'\x04'+pad)[1]
Пример #20
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 def fn():
     return runpack('i', data)
Пример #21
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Файл: mf.py Проект: cr0sh/mf
def mainloop(program):
    pc = 8 & 0xFFFFFFFFL
    tape = None
    
    if len(program) < 8:
        os.write(1, "Invalid MF binary(file too small)\n")
        return 1

    memsize = runpack(">I", program[4:8])
    magic = program[:4]
    if magic == Magic:
        tape = Tape(2*memsize+8)
        for i in range(2, 2*memsize+8,2):
            tape.thetape[i] = 1
    elif magic != BFMagic:
        os.write(1, "Invalid MF binary(magic mismatch)\n")
        return 1
    else:
        tape = Tape(memsize)

    assert type(tape) is Tape
    
    while pc < len(program):
        '''if dbg:
            print hex(pc)[2:], hex(len(program))[2:], tape.thetape, hex(ord(program[pc]))[2:]
            '''
        jitdriver.jit_merge_point(pc=pc, tape=tape, program=program)

        c = ord(program[pc])
        c1, c2 = c>>4, c&0xf        

        spb = -1
        if c1 & 8 == 8:
            spb = c1&7
        elif c2 & 8 == 8 and c2 & 7 != 6:
            tape.control(c1)
            spb = c2&7
        
        if spb == -1:
            tape.control(c1)
            tape.control(c2)
            pc += 1

        else:
            pc += 1
            # print "special: ", spb, data
            if spb == 0:
                tape.inc(ord(program[pc+3]))
                pc += 4
            elif spb == 1:
                tape.dec(ord(program[pc+3]))
                pc += 4
            else:
                data = runpack(">I", program[pc:pc+4])
                pc += 4
                assert data > 0
                if spb == 2:
                    tape.advance(data)
                elif spb == 3:
                    tape.devance(data)
                elif spb == 4 and tape.get() == 0:
                    pc = data & 0xFFFFFFFFL
                    jitdriver.can_enter_jit(pc=pc, program=program, tape=tape)
                elif spb == 5 and tape.get() != 0:
                    pc = data & 0xFFFFFFFFL
                    jitdriver.can_enter_jit(pc=pc, program=program, tape=tape)
    return 0
Пример #22
0
	def readInt2(self, stream):
		self.readlen += 2
		c1, c2 = runpack("2B", stream.read(2))
		return (c1 << 8) + c2
Пример #23
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def mainloop(program):
    pc = 8 & 0xFFFFFFFFL
    tape = None

    if len(program) < 8:
        os.write(1, "Invalid MF binary(file too small)\n")
        return 1

    memsize = runpack(">I", program[4:8])
    magic = program[:4]
    if magic == Magic:
        tape = Tape(2 * memsize + 8)
        for i in range(2, 2 * memsize + 8, 2):
            tape.thetape[i] = 1
    elif magic != BFMagic:
        os.write(1, "Invalid MF binary(magic mismatch)\n")
        return 1
    else:
        tape = Tape(memsize)

    assert type(tape) is Tape

    while pc < len(program):
        '''if dbg:
            print hex(pc)[2:], hex(len(program))[2:], tape.thetape, hex(ord(program[pc]))[2:]
            '''
        jitdriver.jit_merge_point(pc=pc, tape=tape, program=program)

        c = ord(program[pc])
        c1, c2 = c >> 4, c & 0xf

        spb = -1
        if c1 & 8 == 8:
            spb = c1 & 7
        elif c2 & 8 == 8 and c2 & 7 != 6:
            tape.control(c1)
            spb = c2 & 7

        if spb == -1:
            tape.control(c1)
            tape.control(c2)
            pc += 1

        else:
            pc += 1
            # print "special: ", spb, data
            if spb == 0:
                tape.inc(ord(program[pc + 3]))
                pc += 4
            elif spb == 1:
                tape.dec(ord(program[pc + 3]))
                pc += 4
            else:
                data = runpack(">I", program[pc:pc + 4])
                pc += 4
                assert data > 0
                if spb == 2:
                    tape.advance(data)
                elif spb == 3:
                    tape.devance(data)
                elif spb == 4 and tape.get() == 0:
                    pc = data & 0xFFFFFFFFL
                    jitdriver.can_enter_jit(pc=pc, program=program, tape=tape)
                elif spb == 5 and tape.get() != 0:
                    pc = data & 0xFFFFFFFFL
                    jitdriver.can_enter_jit(pc=pc, program=program, tape=tape)
    return 0
Пример #24
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 def load(fd):
     n = intmask(runpack('>Q', fd.read(8)))
     return ByteString(fd.read(n))
Пример #25
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 def h(self):
     return runpack('=H', self.next_bytes(2))
Пример #26
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 def word(self):
     return runpack('=I', self.next_bytes(4))
Пример #27
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 def peek(self):
     return runpack('=B', self.bytes[self.pos])
Пример #28
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 def byte(self):
     return runpack('=B', self.next_bytes(1))
Пример #29
0
 def load(fd):
     n = runpack('>q', fd.read(8))
     return Socket(None, n)
Пример #30
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 def h(self):
     return runpack('=H', self.next_bytes(2))
Пример #31
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def _PyFloat_Unpack4(space, ptr, le):
    input = rffi.charpsize2str(rffi.cast(CONST_STRING, ptr), 4)
    if rffi.cast(lltype.Signed, le):
        return runpack.runpack("<f", input)
    else:
        return runpack.runpack(">f", input)
Пример #32
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 def load(fd):
     n = runpack('>Q', fd.read(8))
     return Bool(fd.read(1) != '\0')
Пример #33
0
 def unpack(tmpl, b):
     return runpack(tmpl, b),
Пример #34
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 def peek(self):
     return runpack('=B', self.bytes[self.pos])
Пример #35
0
 def fn():
     return runpack('sll', 'a' + pad + '\x03' + pad + '\x04' + pad)[1]
Пример #36
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	def readInt4(self, stream):
		self.readlen += 4
		c1, c2, c3, c4 = runpack("4B", stream.read(4))
		return (c1 << 24) + (c2 << 16) + (c3 << 8) + c4
Пример #37
0
 def fn():
     a, b, c, d = runpack('iiii', data)
     return a * 1000 + b * 100 + c * 10 + d
Пример #38
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	def readUCInt(self, stream):
		self.readlen += 1
		return runpack("B", stream.read(1))
Пример #39
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 def byte(self):
     return runpack('=B', self.next_bytes(1))
Пример #40
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 def fn():
     a, b, c, d = runpack('iiii', data)
     return a * 1000 + b * 100 + c * 10 + d
Пример #41
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 def fn():
     return runpack('i', data)
Пример #42
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 def fn():
     return runpack(">i", "\x01\x02\x03\x04")
Пример #43
0
 def fn():
     return runpack(">i", "\x01\x02\x03\x04")
Пример #44
0
 def fn():
     d, f = runpack("@df", d_data)
     return d, f
Пример #45
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 def fn():
     return runpack(">d", "testtest")
Пример #46
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 def word(self):
     return runpack('=I', self.next_bytes(4))
Пример #47
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 def fn():
     d, f = runpack("@df", d_data)
     return d, f
Пример #48
0
 def load(fd):
     n = runpack('>Q', fd.read(8))
     return UInt(n)
Пример #49
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 def fn():
     return runpack(fmt, data)
Пример #50
0
 def load(fd):
     return Char(unichr(runpack('>I', fd.read(4))))
Пример #51
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def _PyFloat_Unpack8(space, ptr, le):
    input = rffi.charpsize2str(ptr, 8)
    if rffi.cast(lltype.Signed, le):
        return runpack.runpack("<d", input)
    else:
        return runpack.runpack(">d", input)
Пример #52
0
 def load(fd):
     n = intmask(runpack('>Q', fd.read(8)))
     return String(fd.read(n).decode('utf-8'))
Пример #53
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def read_bytecode(fd, receiver):
    magic_start = fd.read(8)
    assert runpack('>Q', magic_start) == MAGIC_START
    symbols = []

    with receiver as program_receiver:
        while True:
            type_bytes = fd.read(1)
            if len(type_bytes) == 0:
                break
            type = runpack('>B', type_bytes)

            if type == SYMBOL:
                length = intmask(runpack('>Q', fd.read(8)))
                value = fd.read(length)
                symbols.append(value)
            elif type == FUNCTION_START:
                name_n = intmask(runpack('>Q', fd.read(8)))
                name = symbols[name_n]
                arguments_n = intmask(runpack('>Q', fd.read(8)))
                return_n = intmask(runpack('>Q', fd.read(8)))

                with program_receiver.function(name, arguments_n, return_n) as (function_receiver, _):
                    basic_block_n = intmask(runpack('>Q', fd.read(8)))
                    for i in xrange(basic_block_n):
                        with function_receiver.basic_block() as basic_block_receiver:
                            while True:
                                instruction_type = runpack('>B', fd.read(1))
                                if instruction_type == PHI:
                                    length = intmask(runpack('>Q', fd.read(8)))
                                    inputs = []
                                    for i in xrange(length):
                                        block = runpack('>Q', fd.read(8))
                                        var = runpack('>Q', fd.read(8))
                                        inputs.append((block, var))
                                    basic_block_receiver.phi(inputs)
                                elif instruction_type == COPY:
                                    basic_block_receiver.copy()
                                elif instruction_type == MOVE:
                                    variable = runpack('>Q', fd.read(8))
                                    basic_block_receiver.move(variable)
                                elif instruction_type == UNPACK:
                                    basic_block_receiver.unpack()
                                elif instruction_type == CONST_BYTE:
                                    basic_block_receiver.constant_byte(fd.read(1))
                                elif instruction_type == CONST_CHAR:
                                    basic_block_receiver.constant_char(unichr(runpack('>I', fd.read(4))))
                                elif instruction_type == CONST_BYTESTRING:
                                    length = intmask(runpack('>Q', fd.read(8)))
                                    basic_block_receiver.constant_bytestring(fd.read(length))
                                elif instruction_type == CONST_STRING:
                                    length = intmask(runpack('>Q', fd.read(8)))
                                    basic_block_receiver.constant_string(fd.read(length).decode('utf-8'))
                                elif instruction_type == CONST_BOOL:
                                    basic_block_receiver.constant_bool(fd.read(1) != '\0')
                                elif instruction_type == CONST_INT:
                                    basic_block_receiver.constant_int(runpack('>q', fd.read(8)))
                                elif instruction_type == CONST_UINT:
                                    basic_block_receiver.constant_uint(runpack('>Q', fd.read(8)))
                                elif instruction_type == CONST_DOUBLE:
                                    basic_block_receiver.constant_double(runpack('>d', fd.read(8)))
                                elif instruction_type == VOID:
                                    basic_block_receiver.void()
                                elif instruction_type == OPERATION:
                                    operator_n = intmask(runpack('>Q', fd.read(8)))
                                    operator = symbols[operator_n]
                                    arguments_n = intmask(runpack('>Q', fd.read(8)))
                                    arguments = []
                                    for i in xrange(arguments_n):
                                        arguments.append(runpack('>Q', fd.read(8)))
                                    basic_block_receiver.operation(operator, arguments)
                                elif instruction_type == FUN_CALL:
                                    function_name_n = intmask(runpack('>Q', fd.read(8)))
                                    function_name = symbols[function_name_n]
                                    arguments_n = intmask(runpack('>Q', fd.read(8)))
                                    arguments = []
                                    for i in xrange(arguments_n):
                                        arguments.append(runpack('>Q', fd.read(8)))
                                    basic_block_receiver.fun_call(function_name, arguments)
                                elif instruction_type == SYS_CALL:
                                    function_name_n = intmask(runpack('>Q', fd.read(8)))
                                    function_name = symbols[function_name_n]
                                    arguments_n = intmask(runpack('>Q', fd.read(8)))
                                    arguments = []
                                    for i in xrange(arguments_n):
                                        arguments.append(runpack('>Q', fd.read(8)))
                                    basic_block_receiver.sys_call(function_name, arguments)
                                elif instruction_type == NEW_COROUTINE:
                                    function_name_n = intmask(runpack('>Q', fd.read(8)))
                                    function_name = symbols[function_name_n]
                                    arguments_n = intmask(runpack('>Q', fd.read(8)))
                                    arguments = []
                                    for i in xrange(arguments_n):
                                        arguments.append(runpack('>Q', fd.read(8)))
                                    basic_block_receiver.new_coroutine(function_name, arguments)
                                elif instruction_type == DEBUG:
                                    value = runpack('>Q', fd.read(8))
                                    basic_block_receiver.debug(value)
                                elif instruction_type == LOAD:
                                    address = runpack('>Q', fd.read(8))
                                    basic_block_receiver.load(address)
                                elif instruction_type == STORE:
                                    address = runpack('>Q', fd.read(8))
                                    variable = runpack('>Q', fd.read(8))
                                    basic_block_receiver.store(address, variable)
                                elif instruction_type == GET:
                                    basic_block_receiver.get()
                                elif instruction_type == PUT:
                                    variable = runpack('>Q', fd.read(8))
                                    basic_block_receiver.put(variable)
                                elif instruction_type == RUN_COROUTINE:
                                    coroutine = runpack('>Q', fd.read(8))
                                    basic_block_receiver.run_coroutine(coroutine)
                                elif instruction_type == YIELD:
                                    value = runpack('>Q', fd.read(8))
                                    basic_block_receiver.yield_(value)
                                elif instruction_type == RESUME:
                                    coroutine = runpack('>Q', fd.read(8))
                                    value = runpack('>Q', fd.read(8))
                                    basic_block_receiver.resume(coroutine, value)
                                elif instruction_type == RET:
                                    variables = [runpack('>Q', fd.read(8)) for i in xrange(return_n)]
                                    basic_block_receiver.ret_multiple(variables)
                                    break
                                elif instruction_type == GOTO:
                                    block = runpack('>Q', fd.read(8))
                                    basic_block_receiver.goto(block)
                                    break
                                elif instruction_type == CONDITIONAL:
                                    variable = runpack('>Q', fd.read(8))
                                    true_block = runpack('>Q', fd.read(8))
                                    false_block = runpack('>Q', fd.read(8))
                                    basic_block_receiver.conditional(variable, true_block, false_block)
                                    break
                                elif instruction_type == CATCH_FIRE_AND_DIE:
                                    basic_block_receiver.catch_fire_and_die()
                                    break
                                elif instruction_type == THROW:
                                    exception = runpack('>Q', fd.read(8))
                                    basic_block_receiver.throw(exception)
                                    break
                                else:
                                    raise NotImplementedError("unknown instruction type: %d" % instruction_type)
            else:
                raise NotImplementedError()
Пример #54
0
	def _readString(self, stream, length):
		res = []
		for i in range(0, length):
			res.append(runpack("s", stream.read(1)))
		return ''.join(res)
Пример #55
0
 def test_unpack_halffloat(self):
     assert runpack(">e", b"\x7b\xef") == 64992.0
     assert runpack("<e", b"\xef\x7b") == 64992.0
Пример #56
0
def _PyFloat_Unpack8(space, ptr, le):
    input = rffi.charpsize2str(ptr, 8)
    if rffi.cast(lltype.Signed, le):
        return runpack.runpack("<d", input)
    else:
        return runpack.runpack(">d", input)
Пример #57
0
	def readBFloat(self, stream):
		self.readlen += 8
		return runpack(">d", stream.read(8))