class LinePromise(object.Object):
_type = object.Type(u"pixie.stdlib.LinePromise")
def type(self):
return LinePromise._type
def __init__(self):
self._chrs = []
self._str = None
def add_char(self, ch):
self._chrs.append(ch)
def finalize(self):
if self._chrs is not None:
self._str = u"".join(self._chrs)
self._chrs = None
def is_finalized(self):
return self._chrs is None
def __repr__(self):
if self.is_finalized():
return self._str
return u"".join(self._chrs)
class Symbol(object.Object):
_type = object.Type(u"pixie.stdlib.Symbol")
__immutable_fields__ = ["_hash"]
def __init__(self, s, meta=nil):
#assert isinstance(s, unicode)
self._str = s
self._w_name = None
self._w_ns = None
self._hash = 0
self._meta = meta
def type(self):
return Symbol._type
def init_names(self):
if self._w_name is None:
s = self._str.split(u"/")
if len(s) == 2:
self._w_ns = rt.wrap(s[0])
self._w_name = rt.wrap(s[1])
elif len(s) == 1:
self._w_name = rt.wrap(s[0])
self._w_ns = nil
else:
self._w_ns = rt.wrap(s[0])
self._w_name = rt.wrap(u"/".join(s[1:]))
def with_meta(self, meta):
return Symbol(self._str, meta)
def meta(self):
return self._meta
class CCallback(PointerType):
_type = object.Type(u"pixie.ffi.CCallback")
def __init__(self, cft, raw_closure, id, fn):
self._fn = fn
self._cft = cft
self._raw_closure = raw_closure
self._is_invoked = False
self._unique_id = id
def type(self):
return CCallback._type
def get_raw_closure(self):
return self._raw_closure
def ll_invoke(self, llargs, llres):
cft = self._cft
assert isinstance(cft, CFunctionType)
args = [None] * len(cft._arg_types)
for i, tp in enumerate(cft._arg_types):
args[i] = tp.ffi_get_value(llargs[i])
self._is_invoked = True
retval = self._fn.invoke(args)
if cft._ret_type is not cvoid:
cft._ret_type.ffi_set_value(llres, retval)
def cleanup(self):
del registered_callbacks[self._unique_id]
clibffi.closureHeap.free(self._raw_closure)
class CFunctionType(object.Type):
base_type = object.Type(u"pixie.ffi.CType")
_immutable_fields_ = ["_arg_types", "_ret-type", "_cd"]
def __init__(self, arg_types, ret_type):
object.Type.__init__(self, name_gen.next(), CStructType.base_type)
self._arg_types = arg_types
self._ret_type = ret_type
self._cd = CifDescrBuilder(self._arg_types,
self._ret_type).rawallocate()
def ffi_get_value(self, ptr):
runtime_error(u"Cannot get a callback value via FFI")
def ffi_set_value(self, ptr, val):
affirm(isinstance(val, CCallback),
u"Can only encode CCallbacks as function pointers")
casted = rffi.cast(rffi.VOIDPP, ptr)
casted[0] = val.get_raw_closure()
return None
def get_cd(self):
return self._cd
def ffi_size(self):
return rffi.sizeof(rffi.VOIDP)
def ffi_type(self):
return clibffi.ffi_type_pointer
class LazySeq(object.Object):
_type = object.Type(u"pixie.stdlib.LazySeq")
def type(self):
return LazySeq._type
def __init__(self, fn, meta=nil):
self._fn = fn
self._meta = meta
self._s = nil
@jit.jit_callback("lazy_seq_sval")
def sval(self):
if self._fn is None:
return self._s
else:
self._s = self._fn.invoke([])
self._fn = None
return self._s
@jit.dont_look_inside
def lazy_seq_seq(self):
self.sval()
if self._s is not nil:
ls = self._s
while True:
if isinstance(ls, LazySeq):
ls = ls.sval()
continue
else:
self._s = ls
return rt.seq(self._s)
else:
return nil
class Protocol(object.Object):
_type = object.Type(u"pixie.stdlib.Protocol")
_immutable_fields_ = ["_rev?"]
def type(self):
return Protocol._type
def __init__(self, name):
self._name = name
self._polyfns = {}
self._satisfies = {}
self._rev = 0
def add_method(self, pfn):
self._polyfns[pfn] = pfn
def add_satisfies(self, tp):
self._satisfies[tp] = tp
self._rev += 1
@elidable_promote()
def _get_satisfies(self, tp, rev):
return tp in self._satisfies
def satisfies(self, tp):
return self._get_satisfies(tp, self._rev)
class ArraySeq(object.Object):
_type = object.Type(u"pixie.stdlib.ArraySeq")
_immutable_fields_ = ["_idx", "_w_array"]
def __init__(self, idx, array):
self._idx = idx
self._w_array = array
def first(self):
return rt.nth(self._w_array, rt.wrap(self._idx))
def next(self):
if self._idx < rt.count(self._w_array) - 1:
return ArraySeq(self._idx + 1, self._w_array)
else:
return nil
def reduce(self, f, init):
for x in range(self._idx, rt.count(self._w_array)):
if rt.reduced_QMARK_(init):
return rt.deref(init)
init = f.invoke([init, rt.nth(self._w_array, rt.wrap(x))])
return init
def type(self):
return self._type
class Buffer(object.Object):
""" Defines a byte buffer with non-gc'd (therefore non-movable) contents
"""
_type = object.Type(u"pixie.stdlib.Buffer")
def type(self):
return Buffer._type
def __init__(self, size):
self._size = size
self._used_size = 0
self._buffer = lltype.malloc(rffi.CCHARP.TO, size, flavor="raw")
def __del__(self):
lltype.free(self._buffer, flavor="raw")
def set_used_size(self, size):
self._used_size = size
def buffer(self):
return self._buffer
def count(self):
return self._used_size
def nth_char(self, idx):
assert isinstance(idx, int)
return self._buffer[idx]
def capacity(self):
return self._size
class ByteArray(object.Object):
_type = object.Type(u"pixie.stdlib.ByteArray")
def __init__(self, size):
self._cnt = size
self._buffer = lltype.malloc(ARRAY_OF_UCHAR, size, flavor="raw")
for x in range(size):
self._buffer[x] = chr(0)
def type(self):
return ByteArray._type
def __del__(self):
lltype.free(self._buffer, flavor="raw")
@jit.unroll_safe
def reduce_small(self, f, init):
for x in range(self._cnt):
if rt.reduced_QMARK_(init):
return rt.deref(init)
init = f.invoke([init, rt.wrap(ord(self._buffer[x]))])
return init
def reduce_large(self, f, init):
for x in range(self._cnt):
if rt.reduced_QMARK_(init):
return rt.deref(init)
init = f.invoke([init, rt.wrap(ord(self._buffer[x]))])
return init
class Code(BaseCode):
"""Interpreted code block. Contains consts and """
_type = object.Type(u"pixie.stdlib.Code")
_immutable_fields_ = ["_arity", "_consts[*]", "_bytecode", "_stack_size", "_meta"]
def type(self):
return Code._type
def __init__(self, name, arity, bytecode, consts, stack_size, debug_points, meta=nil):
BaseCode.__init__(self)
self._arity = arity
self._bytecode = bytecode
self._consts = consts
self._name = name
self._stack_size = stack_size
self._debug_points = debug_points
self._meta = meta
def with_meta(self, meta):
return Code(self._name, self._arity, self._bytecode, self._consts, self._stack_size, self._debug_points, meta=meta)
def get_debug_points(self):
return self._debug_points
def invoke(self, args):
if len(args) == self.get_arity():
return self.invoke_with(args, self)
else:
runtime_error(u"Invalid number of arguments " + unicode(str(len(args)))
+ u" for function '" + unicode(str(self._name)) + u"'. Expected "
+ unicode(str(self.get_arity())),
u":pixie.stdlib/InvalidArityException")
def invoke_with(self, args, this_fn):
try:
return interpret(self, args, self_obj=this_fn)
except object.WrappedException as ex:
ex._ex._trace.append(object.PixieCodeInfo(self._name))
raise
@elidable_promote()
def get_arity(self):
return self._arity
@elidable_promote()
def get_consts(self):
return self._consts
@elidable_promote()
def get_bytecode(self):
return self._bytecode
@elidable_promote()
def stack_size(self):
return self._stack_size
@elidable_promote()
def get_base_code(self):
return self
class Atom(object.Object):
_type = object.Type(u"pixie.stdlib.Atom")
def type(self):
return Atom._type
def __init__(self, boxed_value):
self._boxed_value = boxed_value
class Nil(object.Object):
_type = object.Type(u"pixie.stdlib.Nil")
def __repr__(self):
return u"nil"
def type(self):
return Nil._type
class Reduced(object.Object):
_type = object.Type(u"pixie.stdlib.Reduced")
def type(self):
return Reduced._type
def __init__(self, boxed_value):
self._boxed_value = boxed_value
class Var(BaseCode):
_type = object.Type(u"pixie.stdlib.Var")
_immutable_fields_ = ["_rev?"]
def type(self):
return Var._type
def __init__(self, ns, name):
BaseCode.__init__(self)
self._ns = ns
self._name = name
self._rev = 0
self._root = undefined
self._dynamic = False
def set_root(self, o):
affirm(o is not None, u"Invalid var set")
self._rev += 1
self._root = o
return self
def set_value(self, val):
affirm(self._dynamic, u"Can't set the value of a non-dynamic var")
_dynamic_vars.set_var_value(self, val)
return self
def set_dynamic(self):
self._dynamic = True
self._rev += 1
def get_dynamic_value(self):
return _dynamic_vars.get_var_value(self, self._root)
@elidable_promote()
def is_dynamic(self, rev):
return self._dynamic
@elidable_promote()
def get_root(self, rev):
return self._root
def deref(self):
if self.is_dynamic(self._rev):
return self.get_dynamic_value()
else:
val = self.get_root(self._rev)
affirm(val is not undefined,
u"Var " + self._name + u" is undefined")
return val
def is_defined(self):
return self._root is not undefined
def invoke_with(self, args, this_fn):
return self.invoke(args)
def invoke(self, args):
return self.deref().invoke(args)
class Float(Number):
_type = object.Type(u"pixie.stdlib.Float", Number._type)
_immutable_fields_ = ["_float_val"]
def __init__(self, f_val):
self._float_val = f_val
def float_val(self):
return self._float_val
class Node(object.Object):
_type = object.Type(u"pixie.stdlib.PersistentVectorNode")
def type(self):
return Node._type
def __init__(self, edit, array=None):
self._edit = edit
self._array = [None] * 32 if array is None else array
class MapEntry(object.Object):
_type = object.Type(u"pixie.stdlib.MapEntry")
def type(self):
return MapEntry._type
def __init__(self, key, val):
self._key = key
self._val = val
class BigInteger(Number):
_type = object.Type(u"pixie.stdlib.BigInteger", Number._type)
_immutable_fields_ = ["_bigint_val"]
def __init__(self, bi_val):
self._bigint_val = bi_val
def bigint_val(self):
return self._bigint_val
class Code(BaseCode):
"""Interpreted code block. Contains consts and """
_type = object.Type(u"pixie.stdlib.Code")
__immutable_fields__ = ["_consts[*]", "_bytecode", "_stack_size", "_meta"]
def type(self):
return Code._type
def __init__(self,
name,
bytecode,
consts,
stack_size,
debug_points,
meta=nil):
BaseCode.__init__(self)
self._bytecode = bytecode
self._consts = consts
self._name = name
self._stack_size = stack_size
self._debug_points = debug_points
self._meta = meta
def with_meta(self, meta):
return Code(self._name, self._bytecode, self._consts, self._stack_size,
self._debug_points, meta)
def get_debug_points(self):
return self._debug_points
def invoke(self, args):
return self.invoke_with(args, self)
def invoke_with(self, args, this_fn):
try:
return interpret(self, args, self_obj=this_fn)
except object.WrappedException as ex:
ex._ex._trace.append(object.PixieCodeInfo(self._name))
raise
@elidable_promote()
def get_consts(self):
return self._consts
@elidable_promote()
def get_bytecode(self):
return self._bytecode
@elidable_promote()
def stack_size(self):
return self._stack_size
@elidable_promote()
def get_base_code(self):
return self
class MultiArityFn(BaseCode):
_type = object.Type(u"pixie.stdlib.MultiArityFn")
_immutable_fields_ = ["_arities[*]", "_required_arity", "_rest_fn"]
def type(self):
return MultiArityFn._type
def __init__(self,
name,
arities,
required_arity=0,
rest_fn=None,
meta=nil):
BaseCode.__init__(self)
self._name = name
self._arities = arities
self._required_arity = required_arity
self._rest_fn = rest_fn
self._meta = meta
def with_meta(self, meta):
return MultiArityFn(self._name, self._arities, self._required_arity,
self._rest_fn, meta)
@elidable_promote()
def get_fn(self, arity):
f = self._arities.get(arity, None)
if f is not None:
return f
if self._rest_fn is not None and arity >= self._required_arity:
return self._rest_fn
acc = []
sorted = TimSort(self.get_arities())
sorted.sort()
for x in sorted.list:
acc.append(unicode(str(x)))
if self._rest_fn:
acc.append(unicode(str(self._rest_fn.required_arity())) + u"+")
runtime_error(
u"Wrong number of arguments " + unicode(str(arity)) +
u" for function '" + unicode(self._name) + u"'. Expected " +
join_last(acc, u"or"), u"pixie.stdlib/InvalidArityException")
def get_arities(self):
return self._arities.keys()
def invoke(self, args):
return self.invoke_with(args, self)
def invoke_with(self, args, self_fn):
return self.get_fn(len(args)).invoke_with(args, self_fn)
class PlatformReader(object.Object):
_type = object.Type(u"PlatformReader")
def read(self):
assert False
def unread(self):
pass
def reset_line(self):
return self
class EmptyList(object.Object):
_type = object.Type(u"pixie.stdlib.EmptyList")
def __init__(self, meta=nil):
self._meta = meta
def meta(self):
return self._meta
def with_meta(self, meta):
return EmptyList(meta)
class Atom(object.Object):
_type = object.Type(u"pixie.stdlib.Atom")
def with_meta(self, meta):
return Atom(self._boxed_value, meta)
def meta(self):
return self._meta
def __init__(self, boxed_value, meta=nil):
self._boxed_value = boxed_value
self._meta = meta
class Closure(BaseCode):
_type = object.Type(u"pixie.stdlib.Closure")
_immutable_fields_ = ["_closed_overs[*]", "_code", "_meta"]
def type(self):
return Closure._type
def __init__(self, code, closed_overs, meta=nil):
BaseCode.__init__(self)
affirm(isinstance(code, Code),
u"Code argument to Closure must be an instance of Code")
self._code = code
self._closed_overs = closed_overs
self._meta = meta
def with_meta(self, meta):
return Closure(self._code, self._closed_overs, meta)
def name(self):
return None
def invoke(self, args):
return self.invoke_with(args, self)
def invoke_with(self, args, self_fn):
try:
return interpret(self, args, self_obj=self_fn)
except object.WrappedException as ex:
code = self._code
assert isinstance(code, Code)
ex._ex._trace.append(object.PixieCodeInfo(code._name))
raise
def get_closed_over(self, idx):
return self._closed_overs[idx]
def get_consts(self):
return self._code.get_consts()
def get_bytecode(self):
return self._code.get_bytecode()
def stack_size(self):
return self._code.stack_size()
def get_closed_overs(self):
return self._closed_overs
def get_base_code(self):
return self._code.get_base_code()
def get_debug_points(self):
return self._code.get_debug_points()
class Ratio(Number):
_type = object.Type(u"pixie.stdlib.Ratio", Number._type)
_immutable_fields_ = ["_numerator", "_denominator"]
def __init__(self, numerator, denominator):
assert numerator is not None and denominator is not None
self._numerator = numerator
self._denominator = denominator
def numerator(self):
return self._numerator
def denominator(self):
return self._denominator
class PersistentHashMap(object.Object):
_type = object.Type(u"pixie.stdlib.PersistentHashMap")
def type(self):
return PersistentHashMap._type
def __init__(self, cnt, root, meta=nil):
self._cnt = cnt
self._root = root
self._meta = meta
def meta(self):
return self._meta
def with_meta(self, meta):
return PersistentHashMap(self._cnt, self._root, meta)
def assoc(self, key, val):
added_leaf = Box()
new_root = (BitmapIndexedNode_EMPTY if self._root is None else self._root) \
.assoc_inode(r_uint(0), rt.hash(key) & MASK_32, key, val, added_leaf)
if new_root is self._root:
return self
return PersistentHashMap(
self._cnt if added_leaf._val is None else self._cnt + 1, new_root,
self._meta)
def val_at(self, key, not_found):
return not_found if self._root is None else self._root.find(
r_uint(0),
rt.hash(key) & MASK_32, key, not_found)
def without(self, key):
if self._root is None:
return self
new_root = self._root.without_inode(0, rt.hash(key) & MASK_32, key)
if new_root is self._root:
return self
return PersistentHashMap(self._cnt - 1, new_root, self._meta)
def iter(self):
if self._root is None:
return empty_iterator
else:
return self._root.iter()
class INode(object.Object):
_type = object.Type(u"pixie.stdlib.INode")
def assoc_inode(self, shift, hash_val, key, val, added_leaf):
pass
def find(self, shift, hash_val, key, not_found):
pass
def reduce_inode(self, f, init):
pass
def without(self, shift, hash, key):
pass
class NativeFn(BaseCode):
"""Wrapper for a native function"""
_type = object.Type(u"pixie.stdlib.NativeFn")
def __init__(self, doc=None):
BaseCode.__init__(self)
def invoke(self, args):
return self.inner_invoke(args)
def inner_invoke(self, args):
raise NotImplementedError()
def invoke_with(self, args, this_fn):
return self.invoke(args)
class Integer(Number):
_type = object.Type(u"pixie.stdlib.Integer", Number._type)
_immutable_fields_ = ["_int_val"]
def __init__(self, i_val):
self._int_val = i_val
def int_val(self):
return self._int_val
def r_uint_val(self):
return r_uint(self._int_val)
def promote(self):
return Integer(jit.promote(self._int_val))
class ExternalLib(object.Object):
_type = object.Type(u"pixie.stdlib.ExternalLib")
def __init__(self, nm):
assert isinstance(nm, unicode)
self._name = nm
self._is_inited = False
self.load_lib()
def load_lib(self):
if not self._is_inited:
load_paths = rt.deref(rt.deref(rt.load_paths))
for x in range(rt.count(load_paths)):
s = rffi.str2charp(str(rt.name(rt.nth(load_paths, rt.wrap(x)))) + "/" + str(self._name))
try:
self._dyn_lib = dynload.dlopen(s)
self._is_inited = True
except dynload.DLOpenError as ex:
continue
finally:
rffi.free_charp(s)
break
if not self._is_inited:
s = rffi.str2charp(str(self._name))
try:
self._dyn_lib = dynload.dlopen(s)
self._is_inited = True
except dynload.DLOpenError as ex:
raise object.runtime_error(u"Couldn't Load Library: " + self._name,
u"pixie.stdlib/LibraryNotFoundException")
finally:
rffi.free_charp(s)
def get_fn_ptr(self, nm):
assert isinstance(nm, unicode)
s = rffi.str2charp(str(nm))
sym = dynload.dlsym(self._dyn_lib, s)
rffi.free_charp(s)
return sym
