def genpyx_map(t, u):
"""Returns the pyx snippet for a map of type <t, u>."""
t = ts.canon(t)
u = ts.canon(u)
kw = dict(tclsname=ts.cython_classname(t)[1], uclsname=ts.cython_classname(u)[1],
thumname=ts.humanname(t)[1], uhumname=ts.humanname(u)[1],
tctype=ts.cython_ctype(t), uctype=ts.cython_ctype(u),
tpytype=ts.cython_pytype(t), upytype=ts.cython_pytype(u),
tcytype=ts.cython_cytype(t), ucytype=ts.cython_cytype(u),)
tisnotinst = ["not isinstance(key, {0})".format(x) for x in ts.from_pytypes[t]]
kw['tisnotinst'] = " and ".join(tisnotinst)
tc2pykeys = ['tc2pydecl', 'tc2pybody', 'tc2pyrtn']
tc2py = ts.cython_c2py("deref(inow).first", t, cached=False)
kw.update([(k, indentstr(v or '')) for k, v in zip(tc2pykeys, tc2py)])
uc2pykeys = ['uc2pydecl', 'uc2pybody', 'uc2pyrtn']
uc2py = ts.cython_c2py("v", u, cached=False,
existing_name="deref(self.map_ptr)[k]")
kw.update([(k, indentstr(v or '')) for k, v in zip(uc2pykeys, uc2py)])
tpy2ckeys = ['tpy2cdecl', 'tpy2cbody', 'tpy2crtn']
tpy2c = ts.cython_py2c("key", t)
kw.update([(k, indentstr(v or '')) for k, v in zip(tpy2ckeys, tpy2c)])
upy2ckeys = ['upy2cdecl', 'upy2cbody', 'upy2crtn']
upy2c = ts.cython_py2c("value", u)
kw.update([(k, indentstr(v or '')) for k, v in zip(upy2ckeys, upy2c)])
return _pyxmap.format(**kw)
def genpxd_vector(t):
"""Returns the pxd snippet for a vector of type t."""
t = ts.canon(t)
kw = dict(clsname=ts.cython_classname(t)[1], humname=ts.humanname(t)[1],
ctype=ts.cython_ctype(t), pytype=ts.cython_pytype(t),
fncname=ts.cython_functionname(t)[1],
cytype=ts.cython_cytype(t),)
return _pxdvector.format(**kw)
def genpyx_set(t):
"""Returns the pyx snippet for a set of type t."""
t = ts.canon(t)
kw = dict(clsname=ts.cython_classname(t)[1], humname=ts.humanname(t)[1],
ctype=ts.cython_ctype(t), pytype=ts.cython_pytype(t),
cytype=ts.cython_cytype(t),)
fpt = ts.from_pytypes[t]
kw['isinst'] = " or ".join(["isinstance(value, {0})".format(x) for x in fpt])
c2pykeys = ['c2pydecl', 'c2pybody', 'c2pyrtn']
c2py = ts.cython_c2py("deref(inow)", t, cached=False)
kw.update([(k, indentstr(v or '')) for k, v in zip(c2pykeys, c2py)])
py2ckeys = ['py2cdecl', 'py2cbody', 'py2crtn']
py2c = ts.cython_py2c("value", t)
kw.update([(k, indentstr(v or '')) for k, v in zip(py2ckeys, py2c)])
return _pyxset.format(**kw)
def _gen_dispatcher(name, name_mangled, doc=None, hasrtn=True):
argfill = ", ".join(['self', '*args', '**kwargs'])
lines = ['def {0}({1}):'.format(name, argfill)]
lines += [] if doc is None else indent('\"\"\"{0}\"\"\"'.format(doc), join=False)
types = ["types = set([(i, type(a)) for i, a in enumerate(args)])",
"types.update([(k, type(v)) for k, v in kwargs.iteritems()])",]
lines += indent(types, join=False)
refinenum = lambda x: (sum([int(isrefinement(a[1])) for a in x[0][1:]]), len(x[0]), x[1])
mangitems = sorted(name_mangled.items(), key=refinenum)
mtypeslines = []
lines += indent("# vtable-like dispatch for exactly matching types", join=False)
for key, mangled_name in mangitems:
cargs = key[1:]
arang = range(len(cargs))
anames = [ca[0] for ca in cargs]
pytypes = [cython_pytype(ca[1]) for ca in cargs]
mtypes = ", ".join(
["({0}, {1})".format(i, pyt) for i, pyt in zip(arang, pytypes)] + \
['("{0}", {1})'.format(n, pyt) for n, pyt in zip(anames, pytypes)])
mtups = '(' + mtypes + ')' if 0 < len(mtypes) else mtypes
mtypeslines.append(mangled_name + "_argtypes = frozenset(" + mtups + ")")
cond = ["if types <= self.{0}_argtypes:".format(mangled_name),]
if hasrtn:
rline = "return self.{0}(*args, **kwargs)".format(mangled_name)
else:
rline = ["self.{0}(*args, **kwargs)".format(mangled_name), "return"]
cond += indent(rline, join=False)
lines += indent(cond, join=False)
lines = sorted(mtypeslines) + [''] + lines
lines += indent("# duck-typed dispatch based on whatever works!", join=False)
refineopp = lambda x: (-1*sum([int(isrefinement(a[1])) for a in x[0][1:]]), len(x[0]), x[1])
mangitems = sorted(name_mangled.items(), key=refineopp)
for key, mangled_name in mangitems:
lines += indent('try:', join=False)
if hasrtn:
rline = "return self.{0}(*args, **kwargs)".format(mangled_name)
else:
rline = ["self.{0}(*args, **kwargs)".format(mangled_name), "return"]
lines += indent(indent(rline, join=False), join=False)
lines += indent(["except (RuntimeError, TypeError, NameError):",
indent("pass", join=False)[0],], join=False)
errmsg = "raise RuntimeError('method {0}() could not be dispatched')".format(name)
lines += indent(errmsg, join=False)
lines += ['']
return lines
def genpyx_vector(t):
"""Returns the pyx snippet for a vector of type t."""
t = ts.canon(t)
kw = dict(clsname=ts.cython_classname(t)[1], humname=ts.humanname(t)[1],
fncname=ts.cython_functionname(t)[1],
ctype=ts.cython_ctype(t), pytype=ts.cython_pytype(t),
cytype=ts.cython_cytype(t), stlcontainers=ts.STLCONTAINERS,
extra_types=ts.EXTRA_TYPES)
t0 = t
while not isinstance(t0, basestring):
t0 = t[0]
fpt = ts.from_pytypes[t0]
kw['isinst'] = " or ".join(["isinstance(value, {0})".format(x) for x in fpt])
c2pykeys = ['c2pydecl', 'c2pybody', 'c2pyrtn']
c2py = ts.cython_c2py("deref(<{0} *> data)".format(kw['ctype']), t, cached=False,
proxy_name="data_proxy")
kw.update([(k, indentstr(v or '')) for k, v in zip(c2pykeys, c2py)])
cself2pykeys = ['cself2pydecl', 'cself2pybody', 'cself2pyrtn']
cself2py = ts.cython_c2py("(cself.obval)", t, cached=False, proxy_name="val_proxy")
kw.update([(k, indentstr(v or '')) for k, v in zip(cself2pykeys, cself2py)])
py2ckeys = ['py2cdecl', 'py2cbody', 'py2crtn']
py2c = ts.cython_py2c("value", t)
kw.update([(k, indentstr(v or '')) for k, v in zip(py2ckeys, py2c)])
return _pyxvector.format(**kw)
