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from rpython.annotator import model as annmodel
from rpython.rlib.objectmodel import _hash_float
from rpython.rlib.rarithmetic import base_int
from rpython.rlib import jit
from rpython.rtyper.annlowlevel import llstr
from rpython.rtyper.error import TyperError
from rpython.rtyper.lltypesystem.lltype import (Signed, Bool, Float)
from rpython.rtyper.rmodel import Repr
from rpython.tool.pairtype import pairtype
class FloatRepr(Repr):
lowleveltype = Float
def convert_const(self, value):
if not isinstance(value, (int, base_int, float)): # can be bool too
raise TyperError("not a float: %r" % (value,))
return float(value)
def get_ll_eq_function(self):
return None
get_ll_gt_function = get_ll_eq_function
get_ll_lt_function = get_ll_eq_function
get_ll_ge_function = get_ll_eq_function
get_ll_le_function = get_ll_eq_function
def get_ll_hash_function(self):
return _hash_float
def rtype_bool(_, hop):
vlist = hop.inputargs(Float)
return hop.genop('float_is_true', vlist, resulttype=Bool)
def rtype_neg(_, hop):
vlist = hop.inputargs(Float)
return hop.genop('float_neg', vlist, resulttype=Float)
def rtype_pos(_, hop):
vlist = hop.inputargs(Float)
return vlist[0]
def rtype_abs(_, hop):
vlist = hop.inputargs(Float)
return hop.genop('float_abs', vlist, resulttype=Float)
def rtype_int(_, hop):
vlist = hop.inputargs(Float)
# int(x) never raises in RPython, you need to use
# rarithmetic.ovfcheck_float_to_int() if you want this
hop.exception_cannot_occur()
return hop.genop('cast_float_to_int', vlist, resulttype=Signed)
def rtype_float(_, hop):
vlist = hop.inputargs(Float)
hop.exception_cannot_occur()
return vlist[0]
@jit.elidable
def ll_str(self, f):
from rpython.rlib.rfloat import formatd
return llstr(formatd(f, 'f', 6))
float_repr = FloatRepr()
class __extend__(annmodel.SomeFloat):
def rtyper_makerepr(self, rtyper):
return float_repr
def rtyper_makekey(self):
return self.__class__,
class __extend__(pairtype(FloatRepr, FloatRepr)):
#Arithmetic
def rtype_add(_, hop):
return _rtype_template(hop, 'add')
rtype_inplace_add = rtype_add
def rtype_sub(_, hop):
return _rtype_template(hop, 'sub')
rtype_inplace_sub = rtype_sub
def rtype_mul(_, hop):
return _rtype_template(hop, 'mul')
rtype_inplace_mul = rtype_mul
def rtype_truediv(_, hop):
return _rtype_template(hop, 'truediv')
rtype_inplace_truediv = rtype_truediv
# turn 'div' on floats into 'truediv'
rtype_div = rtype_truediv
rtype_inplace_div = rtype_inplace_truediv
# 'floordiv' on floats not supported in RPython
#comparisons: eq is_ ne lt le gt ge
def rtype_eq(_, hop):
return _rtype_compare_template(hop, 'eq')
rtype_is_ = rtype_eq
def rtype_ne(_, hop):
return _rtype_compare_template(hop, 'ne')
def rtype_lt(_, hop):
return _rtype_compare_template(hop, 'lt')
def rtype_le(_, hop):
return _rtype_compare_template(hop, 'le')
def rtype_gt(_, hop):
return _rtype_compare_template(hop, 'gt')
def rtype_ge(_, hop):
return _rtype_compare_template(hop, 'ge')
#Helpers FloatRepr,FloatRepr
def _rtype_template(hop, func):
vlist = hop.inputargs(Float, Float)
return hop.genop('float_'+func, vlist, resulttype=Float)
def _rtype_compare_template(hop, func):
vlist = hop.inputargs(Float, Float)
return hop.genop('float_'+func, vlist, resulttype=Bool)
# ______________________________________________________________________
# Support for r_singlefloat and r_longfloat from rpython.rlib.rarithmetic
from rpython.rtyper.lltypesystem import lltype
from rpython.rtyper.rmodel import Repr
class __extend__(annmodel.SomeSingleFloat):
def rtyper_makerepr(self, rtyper):
return SingleFloatRepr()
def rtyper_makekey(self):
return self.__class__,
class SingleFloatRepr(Repr):
lowleveltype = lltype.SingleFloat
def rtype_float(self, hop):
v, = hop.inputargs(lltype.SingleFloat)
hop.exception_cannot_occur()
# we use cast_primitive to go between Float and SingleFloat.
return hop.genop('cast_primitive', [v],
resulttype = lltype.Float)
class __extend__(annmodel.SomeLongFloat):
def rtyper_makerepr(self, rtyper):
return LongFloatRepr()
def rtyper_makekey(self):
return self.__class__,
class LongFloatRepr(Repr):
lowleveltype = lltype.LongFloat
def rtype_float(self, hop):
v, = hop.inputargs(lltype.LongFloat)
hop.exception_cannot_occur()
# we use cast_primitive to go between Float and LongFloat.
return hop.genop('cast_primitive', [v],
resulttype = lltype.Float)
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