def fasl_integer_inner(self, fasl_string, pos, b):
from pycket import values as v
from pycket.prims.numeric import _integer_bytes_to_integer
from pycket.prims.string import _str2num
from pycket.values_string import W_String
if b <= 127:
return b, pos
elif b >= 132:
return b - 256, pos
elif b == 128:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 2)
return _integer_bytes_to_integer(list(num_str), v.w_true,
v.w_false).toint(), pos
elif b == 129:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 4)
return _integer_bytes_to_integer(list(num_str), v.w_true,
v.w_false).toint(), pos
elif b == 130:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 8)
return _integer_bytes_to_integer(list(num_str), v.w_true,
v.w_false).toint(), pos
elif b == 131:
length, pos = self.read_fasl_integer(fasl_string, pos)
num_str, pos = self.read_fasl_string(fasl_string, pos, length)
if len(num_str) != length:
raise Exception("fasl: truncated stream at number")
return _str2num(W_String.fromstr_utf8(num_str).as_str_utf8(),
16).toint(), pos
else:
raise Exception("fasl: internal error on integer mode")
def read_fasl_integer_stream(self, stream):
from pycket import values as v
from pycket.prims.numeric import _integer_bytes_to_integer
from pycket.prims.string import _str2num
from pycket.values_string import W_String
_b = stream.read(1)[0]
if not _b:
raise Exception("truncated stream - got eof")
b = ord(_b)
if b <= 127:
return b
elif b >= 132:
return b-256
elif b == 128:
num_str = self.read_bytes_exactly_stream(stream, 2)
return _integer_bytes_to_integer(list(num_str), v.w_true, v.w_false).toint()
elif b == 129:
num_str = self.read_bytes_exactly_stream(stream, 4)
return _integer_bytes_to_integer(list(num_str), v.w_true, v.w_false).toint()
elif b == 130:
num_str = self.read_bytes_exactly_stream(stream, 8)
return _integer_bytes_to_integer(list(num_str), v.w_true, v.w_false).toint()
elif b == 131:
length = self.read_fasl_integer_stream(stream)
assert isinstance(length, int)
num_str = self.read_bytes_exactly_stream(stream, length)
if len(num_str) != length:
raise Exception("fasl: truncated stream at number")
return _str2num(W_String.fromstr_utf8(num_str).as_str_utf8(), 16).toint()
else:
raise Exception("fasl: internal error on integer mode")
def fasl_integer_inner(self, fasl_string, pos, b):
from pycket import values as v
from pycket.prims.numeric import _integer_bytes_to_integer
from pycket.prims.string import _str2num
from pycket.values_string import W_String
if b <= 127:
return b, pos
elif b >= 132:
return b-256, pos
elif b == 128:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 2)
return _integer_bytes_to_integer(list(num_str), v.w_true, v.w_false).toint(), pos
elif b == 129:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 4)
return _integer_bytes_to_integer(list(num_str), v.w_true, v.w_false).toint(), pos
elif b == 130:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 8)
return _integer_bytes_to_integer(list(num_str), v.w_true, v.w_false).toint(), pos
elif b == 131:
length, pos = self.read_fasl_integer(fasl_string, pos)
num_str, pos = self.read_fasl_string(fasl_string, pos, length)
if len(num_str) != length:
raise Exception("fasl: truncated stream at number")
return _str2num(W_String.fromstr_utf8(num_str).as_str_utf8(), 16).toint(), pos
else:
raise Exception("fasl: internal error on integer mode")
def read_fasl_integer_stream(self, stream):
from pycket import values as v
from pycket.prims.numeric import _integer_bytes_to_integer
from pycket.prims.string import _str2num
from pycket.values_string import W_String
_b = stream.read(1)[0]
if not _b:
raise Exception("truncated stream - got eof")
b = ord(_b)
if b <= 127:
return b
elif b >= 132:
return b - 256
elif b == 128:
num_str = self.read_bytes_exactly_stream(stream, 2)
return _integer_bytes_to_integer(list(num_str), v.w_true,
v.w_false).toint()
elif b == 129:
num_str = self.read_bytes_exactly_stream(stream, 4)
return _integer_bytes_to_integer(list(num_str), v.w_true,
v.w_false).toint()
elif b == 130:
num_str = self.read_bytes_exactly_stream(stream, 8)
return _integer_bytes_to_integer(list(num_str), v.w_true,
v.w_false).toint()
elif b == 131:
length = self.read_fasl_integer_stream(stream)
assert isinstance(length, int)
num_str = self.read_bytes_exactly_stream(stream, length)
if len(num_str) != length:
raise Exception("fasl: truncated stream at number")
return _str2num(W_String.fromstr_utf8(num_str).as_str_utf8(),
16).toint()
else:
raise Exception("fasl: internal error on integer mode")
def fasl_to_sexp_recursive(self, fasl_string, pos):
from pycket import values as v
from pycket.values_string import W_String
from pycket.values_regex import W_Regexp, W_PRegexp, W_ByteRegexp, W_BytePRegexp
from pycket.vector import W_Vector
from pycket.values_struct import W_Struct
from pycket.prims.general import srcloc
from pycket.hash import simple as hash_simple
from pycket.hash.equal import W_EqualHashTable
from pycket.prims.numeric import float_bytes_to_real
from pycket.prims.string import _str2num
from rpython.rlib.rbigint import rbigint
from pycket.prims.input_output import build_path, bytes_to_path_element
from pycket.ast_vs_sexp import to_rpython_list
from pycket.racket_entry import get_primitive
typ, pos = self.read_byte_no_eof(fasl_string, pos)
if typ == FASL_GRAPH_DEF_TYPE:
position, pos = self.read_fasl_integer(fasl_string, pos)
val, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
if position >= self.GLOBAL_SHARED_COUNT:
raise Exception("fasl: bad graph index")
self.SHARED[position] = val
return val, pos
elif typ == FASL_GRAPH_REF_TYPE:
position, pos = self.read_fasl_integer(fasl_string, pos)
if position >= self.GLOBAL_SHARED_COUNT:
raise Exception("fasl: bad graph index")
return self.SHARED[position], pos
elif typ == FASL_FALSE_TYPE:
return v.w_false, pos
elif typ == FASL_TRUE_TYPE:
return v.w_true, pos
elif typ == FASL_NULL_TYPE:
return v.w_null, pos
elif typ == FASL_VOID_TYPE:
return v.w_void, pos
elif typ == FASL_EOF_TYPE:
return v.eof_object, pos
elif typ == FASL_INTEGER_TYPE:
num, pos = self.read_fasl_integer(fasl_string, pos)
if isinstance(num, rbigint):
return v.W_Bignum(num), pos
return v.W_Fixnum(num), pos
elif typ == FASL_FLONUM_TYPE:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 8)
return float_bytes_to_real(list(num_str), v.w_false), pos
elif typ == FASL_SINGLE_FLONUM_TYPE:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 4)
real = float_bytes_to_real(list(num_str), v.w_false)
return real.arith_exact_inexact(), pos
elif typ == FASL_EXTFLONUM_TYPE:
bstr_len, pos = self.read_fasl_integer(fasl_string, pos)
num_str, pos = self.read_bytes_exactly(fasl_string, pos, bstr_len)
return _str2num(W_String.fromstr_utf8(num_str).as_str_utf8(),
10), pos
elif typ == FASL_RATIONAL_TYPE:
num, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
den, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_Rational.make(num, den), pos
elif typ == FASL_COMPLEX_TYPE:
re, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
im, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_Complex.from_real_pair(re, im), pos
elif typ == FASL_CHAR_TYPE:
_chr, pos = self.read_fasl_integer(fasl_string, pos)
return v.W_Character(unichr(_chr)), pos
elif typ == FASL_SYMBOL_TYPE:
sym_str, pos = self.read_fasl_string(fasl_string, pos)
return v.W_Symbol.make(sym_str), pos
elif typ == FASL_UNREADABLE_SYMBOL_TYPE:
sym_str, pos = self.read_fasl_string(fasl_string, pos)
return v.W_Symbol.make_unreadable(sym_str), pos
elif typ == FASL_UNINTERNED_SYMBOL_TYPE:
sym_str, pos = self.read_fasl_string(fasl_string, pos)
return v.W_Symbol(sym_str), pos
elif typ == FASL_KEYWORD_TYPE:
key_str, pos = self.read_fasl_string(fasl_string, pos)
return v.W_Keyword.make(key_str), pos
elif typ == FASL_STRING_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
return W_String.make(str_str), pos
elif typ == FASL_IMMUTABLE_STRING_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
return W_String.make(str_str).make_immutable(), pos
elif typ == FASL_BYTES_TYPE:
byts, pos = self.read_fasl_bytes(fasl_string, pos)
return v.W_Bytes.from_string(byts, immutable=False), pos
elif typ == FASL_IMMUTABLE_BYTES_TYPE:
byts, pos = self.read_fasl_bytes(fasl_string, pos)
return v.W_Bytes.from_string(byts), pos
elif typ == FASL_PATH_TYPE:
byts, pos = self.read_fasl_bytes(fasl_string, pos)
return v.W_Path(byts), pos
elif typ == FASL_RELATIVE_PATH_TYPE:
wrt_dir = self.current_relative_dir
p_w_lst, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
p_r_lst, _ = to_rpython_list(p_w_lst)
rel_elems = [
bytes_to_path_element(p) if isinstance(p, v.W_Bytes) else p
for p in p_r_lst
]
if wrt_dir:
return build_path([wrt_dir] + rel_elems), pos
elif rel_elems == []:
return build_path([v.W_Symbol.make("same")]), pos
else:
return build_path(rel_elems), pos
elif typ == FASL_PREGEXP_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
reg_str = W_String.make(str_str)
pregexp = get_primitive('pregexp')
pregexp_obj = pregexp.call_interpret([reg_str])
return pregexp_obj, pos
elif typ == FASL_REGEXP_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
reg_str = W_String.make(str_str)
regexp = get_primitive('regexp')
regexp_obj = regexp.call_interpret([reg_str])
return regexp_obj, pos
elif typ == FASL_BYTE_PREGEXP:
str_str, pos = self.read_fasl_string(fasl_string, pos)
reg_bytes = v.W_Bytes.from_string(str_str)
byte_pregexp = get_primitive('byte-pregexp')
byte_pregexp_obj = byte_pregexp.call_interpret([reg_bytes])
return byte_pregexp_obj, pos
elif typ == FASL_BYTE_REGEXP_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
reg_bytes = v.W_Bytes.from_string(str_str)
byte_regexp = get_primitive('byte-regexp')
byte_regexp_obj = byte_regexp.call_interpret([reg_bytes])
return byte_regexp_obj, pos
elif typ == FASL_LIST_TYPE:
list_len, pos = self.read_fasl_integer(fasl_string, pos)
lst, pos = self.read_multi_into_rpython_list(
fasl_string, pos, list_len)
return v.to_list(lst), pos
elif typ == FASL_PAIR_TYPE:
car, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
cdr, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_Cons.make(car, cdr), pos
elif typ == FASL_LIST_STAR_TYPE:
list_len, pos = self.read_fasl_integer(fasl_string, pos)
# list_len is the length of the proper part
lst, pos = self.read_multi_into_rpython_list(
fasl_string, pos, list_len)
# read the last element
return_list, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
for i in range(list_len - 1, -1, -1):
return_list = v.W_Cons.make(lst[i], return_list)
return return_list, pos
elif typ == FASL_VECTOR_TYPE or typ == FASL_IMMUTABLE_VECTOR_TYPE:
vec_len, pos = self.read_fasl_integer(fasl_string, pos)
storage, pos = self.read_multi_into_rpython_list(
fasl_string, pos, vec_len)
if typ == FASL_IMMUTABLE_VECTOR_TYPE:
return W_Vector.fromelements(storage, immutable=True), pos
return W_Vector.fromelements(storage), pos
elif typ == FASL_BOX_TYPE:
element, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_MBox(element), pos
elif typ == FASL_IMMUTABLE_BOX_TYPE:
element, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_IBox(element), pos
elif typ == FASL_PREFAB_TYPE:
key, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
length, pos = self.read_fasl_integer(fasl_string, pos)
vals, pos = self.read_multi_into_rpython_list(
fasl_string, pos, length)
return W_Struct.make_prefab(key, vals), pos
elif typ == FASL_HASH_TYPE:
variant, pos = self.read_byte_no_eof(fasl_string, pos)
length, pos = self.read_fasl_integer(fasl_string, pos)
keys, vals, pos = self.read_multi_double_into_rpython_list(
fasl_string, pos, length)
if variant == FASL_HASH_EQ_VARIANT:
return hash_simple.make_simple_mutable_table(
hash_simple.W_EqMutableHashTable, keys, vals), pos
elif variant == FASL_HASH_EQV_VARIANT:
return hash_simple.make_simple_mutable_table(
hash_simple.W_EqvMutableHashTable, keys, vals), pos
else: # variant == FASL_HASH_EQUAL_VARIANT:
return W_EqualHashTable(keys, vals, immutable=False), pos
elif typ == FASL_IMMUTABLE_HASH_TYPE:
variant, pos = self.read_byte_no_eof(fasl_string, pos)
length, pos = self.read_fasl_integer(fasl_string, pos)
keys, vals, pos = self.read_multi_double_into_rpython_list(
fasl_string, pos, length)
if variant == FASL_HASH_EQ_VARIANT:
return hash_simple.make_simple_immutable_table(
hash_simple.W_EqImmutableHashTable, keys, vals), pos
elif variant == FASL_HASH_EQV_VARIANT:
return hash_simple.make_simple_immutable_table(
hash_simple.W_EqvImmutableHashTable, keys, vals), pos
else: # variant == FASL_HASH_EQUAL_VARIANT:
return W_EqualHashTable(keys, vals, immutable=True), pos
elif typ == FASL_SRCLOC:
# difficult to create an instance of srcloc struct so defer that to the runtime
source, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
line, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
column, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
position, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
span, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return W_Struct.make([source, line, column, position, span],
srcloc), pos
else:
if typ >= FASL_SMALL_INTEGER_START:
return v.W_Fixnum((typ - FASL_SMALL_INTEGER_START) +
FASL_LOWEST_SMALL_INTEGER), pos
else:
raise Exception("unrecognized fasl tag : %s" % typ)
def fasl_to_sexp_recursive(self, fasl_string, pos):
from pycket import values as v
from pycket.values_string import W_String
from pycket.values_regex import W_Regexp, W_PRegexp, W_ByteRegexp, W_BytePRegexp
from pycket.vector import W_Vector
from pycket.values_struct import W_Struct
from pycket.hash import simple as hash_simple
from pycket.hash.equal import W_EqualHashTable
from pycket.prims.numeric import float_bytes_to_real
from pycket.prims.string import _str2num
from rpython.rlib.rbigint import rbigint
from pycket.prims.input_output import build_path, bytes_to_path_element
from pycket.ast_vs_sexp import to_rpython_list
typ, pos = self.read_byte_no_eof(fasl_string, pos)
if typ == FASL_GRAPH_DEF_TYPE:
position, pos = self.read_fasl_integer(fasl_string, pos)
val, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
if position >= self.GLOBAL_SHARED_COUNT:
raise Exception("fasl: bad graph index")
self.SHARED[position] = val
return val, pos
elif typ == FASL_GRAPH_REF_TYPE:
position, pos = self.read_fasl_integer(fasl_string, pos)
if position >= self.GLOBAL_SHARED_COUNT:
raise Exception("fasl: bad graph index")
return self.SHARED[position], pos
elif typ == FASL_FALSE_TYPE:
return v.w_false, pos
elif typ == FASL_TRUE_TYPE:
return v.w_true, pos
elif typ == FASL_NULL_TYPE:
return v.w_null, pos
elif typ == FASL_VOID_TYPE:
return v.w_void, pos
elif typ == FASL_EOF_TYPE:
return v.eof_object, pos
elif typ == FASL_INTEGER_TYPE:
num, pos = self.read_fasl_integer(fasl_string, pos)
if isinstance(num, rbigint):
return v.W_Bignum(num), pos
return v.W_Fixnum(num), pos
elif typ == FASL_FLONUM_TYPE:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 8)
return float_bytes_to_real(list(num_str), v.w_false), pos
elif typ == FASL_SINGLE_FLONUM_TYPE:
num_str, pos = self.read_bytes_exactly(fasl_string, pos, 4)
real = float_bytes_to_real(list(num_str), v.w_false)
return real.arith_exact_inexact(), pos
elif typ == FASL_EXTFLONUM_TYPE:
bstr_len, pos = self.read_fasl_integer(fasl_string, pos)
num_str, pos = self.read_bytes_exactly(fasl_string, pos, bstr_len)
return _str2num(W_String.fromstr_utf8(num_str).as_str_utf8(), 10), pos
elif typ == FASL_RATIONAL_TYPE:
num, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
den, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_Rational.make(num, den), pos
elif typ == FASL_COMPLEX_TYPE:
re, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
im, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_Complex.from_real_pair(re, im), pos
elif typ == FASL_CHAR_TYPE:
_chr, pos = self.read_fasl_integer(fasl_string, pos)
return v.W_Character(unichr(_chr)), pos
elif typ == FASL_SYMBOL_TYPE:
sym_str, pos = self.read_fasl_string(fasl_string, pos)
return v.W_Symbol.make(sym_str), pos
elif typ == FASL_UNREADABLE_SYMBOL_TYPE:
sym_str, pos = self.read_fasl_string(fasl_string, pos)
return v.W_Symbol.make_unreadable(sym_str), pos
elif typ == FASL_UNINTERNED_SYMBOL_TYPE:
sym_str, pos = self.read_fasl_string(fasl_string, pos)
return v.W_Symbol(sym_str), pos
elif typ == FASL_KEYWORD_TYPE:
key_str, pos = self.read_fasl_string(fasl_string, pos)
return v.W_Keyword.make(key_str), pos
elif typ == FASL_STRING_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
return W_String.make(str_str), pos
elif typ == FASL_IMMUTABLE_STRING_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
return W_String.make(str_str).make_immutable(), pos
elif typ == FASL_BYTES_TYPE:
byts, pos = self.read_fasl_bytes(fasl_string, pos)
return v.W_Bytes.from_string(byts, immutable=False), pos
elif typ == FASL_IMMUTABLE_BYTES_TYPE:
byts, pos = self.read_fasl_bytes(fasl_string, pos)
return v.W_Bytes.from_string(byts), pos
elif typ == FASL_PATH_TYPE:
byts, pos = self.read_fasl_bytes(fasl_string, pos)
return v.W_Path(byts), pos
elif typ == FASL_RELATIVE_PATH_TYPE:
wrt_dir = self.current_relative_dir
p_w_lst, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
p_r_lst, _ = to_rpython_list(p_w_lst)
rel_elems = [bytes_to_path_element(p) if isinstance(p, v.W_Bytes) else p for p in p_r_lst]
if wrt_dir:
return build_path([wrt_dir] + rel_elems), pos
elif rel_elems == []:
return build_path([v.W_Symbol.make("same")]), pos
else:
return build_path(rel_elems), pos
elif typ == FASL_PREGEXP_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
return W_PRegexp(str_str), pos
elif typ == FASL_REGEXP_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
return W_Regexp(str_str), pos
elif typ == FASL_BYTE_PREGEXP:
str_str, pos = self.read_fasl_string(fasl_string, pos)
return W_BytePRegexp(str_str), pos
elif typ == FASL_BYTE_REGEXP_TYPE:
str_str, pos = self.read_fasl_string(fasl_string, pos)
return W_ByteRegexp(str_str), pos
elif typ == FASL_LIST_TYPE:
list_len, pos = self.read_fasl_integer(fasl_string, pos)
lst, pos = self.read_multi_into_rpython_list(fasl_string, pos, list_len)
return v.to_list(lst), pos
elif typ == FASL_PAIR_TYPE:
car, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
cdr, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_Cons.make(car, cdr), pos
elif typ == FASL_LIST_STAR_TYPE:
list_len, pos = self.read_fasl_integer(fasl_string, pos)
# list_len is the length of the proper part
lst, pos = self.read_multi_into_rpython_list(fasl_string, pos, list_len)
# read the last element
return_list, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
for i in range(list_len-1, -1, -1):
return_list = v.W_Cons.make(lst[i], return_list)
return return_list, pos
elif typ == FASL_VECTOR_TYPE or typ == FASL_IMMUTABLE_VECTOR_TYPE:
vec_len, pos = self.read_fasl_integer(fasl_string, pos)
storage, pos = self.read_multi_into_rpython_list(fasl_string, pos, vec_len)
if typ == FASL_IMMUTABLE_VECTOR_TYPE:
return W_Vector.fromelements(storage, immutable=True), pos
return W_Vector.fromelements(storage), pos
elif typ == FASL_BOX_TYPE:
element, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_MBox(element), pos
elif typ == FASL_IMMUTABLE_BOX_TYPE:
element, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.W_IBox(element), pos
elif typ == FASL_PREFAB_TYPE:
key, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
length, pos = self.read_fasl_integer(fasl_string, pos)
vals, pos = self.read_multi_into_rpython_list(fasl_string, pos, length)
return W_Struct.make_prefab(key, vals), pos
elif typ == FASL_HASH_TYPE:
variant, pos = self.read_byte_no_eof(fasl_string, pos)
length, pos = self.read_fasl_integer(fasl_string, pos)
keys, vals, pos = self.read_multi_double_into_rpython_list(fasl_string, pos, length)
if variant == FASL_HASH_EQ_VARIANT:
return hash_simple.make_simple_mutable_table(hash_simple.W_EqMutableHashTable, keys, vals), pos
elif variant == FASL_HASH_EQV_VARIANT:
return hash_simple.make_simple_mutable_table(hash_simple.W_EqvMutableHashTable, keys, vals), pos
else: # variant == FASL_HASH_EQUAL_VARIANT:
return W_EqualHashTable(keys, vals, immutable=False), pos
elif typ == FASL_IMMUTABLE_HASH_TYPE:
variant, pos = self.read_byte_no_eof(fasl_string, pos)
length, pos = self.read_fasl_integer(fasl_string, pos)
keys, vals, pos = self.read_multi_double_into_rpython_list(fasl_string, pos, length)
if variant == FASL_HASH_EQ_VARIANT:
return hash_simple.make_simple_immutable_table(hash_simple.W_EqImmutableHashTable, keys, vals), pos
elif variant == FASL_HASH_EQV_VARIANT:
return hash_simple.make_simple_immutable_table(hash_simple.W_EqvImmutableHashTable, keys, vals), pos
else: # variant == FASL_HASH_EQUAL_VARIANT:
return W_EqualHashTable(keys, vals, immutable=True), pos
elif typ == FASL_SRCLOC:
# difficult to create an instance of srcloc struct so defer that to the runtime
source, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
line, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
column, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
position, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
span, pos = self.fasl_to_sexp_recursive(fasl_string, pos)
return v.to_list([v.W_Symbol.make("srcloc"), source, line, column, position, span]), pos
else:
if typ >= FASL_SMALL_INTEGER_START:
return v.W_Fixnum((typ-FASL_SMALL_INTEGER_START)+FASL_LOWEST_SMALL_INTEGER), pos
else:
raise Exception("unrecognized fasl tag : %s" % typ)