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#!/usr/bin/env python3
"""
Rules for building C/API module with f2py2e.
Copyright 1999,2000 Pearu Peterson all rights reserved,
Pearu Peterson <[email protected]>
Permission to use, modify, and distribute this software is given under the
terms of the NumPy License.
NO WARRANTY IS EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
$Date: 2004/11/26 11:13:06 $
Pearu Peterson
"""
__version__ = "$Revision: 1.16 $"[10:-1]
f2py_version = 'See `f2py -v`'
import copy
from .auxfuncs import (
getfortranname, isexternal, isfunction, isfunction_wrap, isintent_in,
isintent_out, islogicalfunction, ismoduleroutine, isscalar,
issubroutine, issubroutine_wrap, outmess, show
)
def var2fixfortran(vars, a, fa=None, f90mode=None):
if fa is None:
fa = a
if a not in vars:
show(vars)
outmess('var2fixfortran: No definition for argument "%s".\n' % a)
return ''
if 'typespec' not in vars[a]:
show(vars[a])
outmess('var2fixfortran: No typespec for argument "%s".\n' % a)
return ''
vardef = vars[a]['typespec']
if vardef == 'type' and 'typename' in vars[a]:
vardef = '%s(%s)' % (vardef, vars[a]['typename'])
selector = {}
lk = ''
if 'kindselector' in vars[a]:
selector = vars[a]['kindselector']
lk = 'kind'
elif 'charselector' in vars[a]:
selector = vars[a]['charselector']
lk = 'len'
if '*' in selector:
if f90mode:
if selector['*'] in ['*', ':', '(*)']:
vardef = '%s(len=*)' % (vardef)
else:
vardef = '%s(%s=%s)' % (vardef, lk, selector['*'])
else:
if selector['*'] in ['*', ':']:
vardef = '%s*(%s)' % (vardef, selector['*'])
else:
vardef = '%s*%s' % (vardef, selector['*'])
else:
if 'len' in selector:
vardef = '%s(len=%s' % (vardef, selector['len'])
if 'kind' in selector:
vardef = '%s,kind=%s)' % (vardef, selector['kind'])
else:
vardef = '%s)' % (vardef)
elif 'kind' in selector:
vardef = '%s(kind=%s)' % (vardef, selector['kind'])
vardef = '%s %s' % (vardef, fa)
if 'dimension' in vars[a]:
vardef = '%s(%s)' % (vardef, ','.join(vars[a]['dimension']))
return vardef
def createfuncwrapper(rout, signature=0):
assert isfunction(rout)
extra_args = []
vars = rout['vars']
for a in rout['args']:
v = rout['vars'][a]
for i, d in enumerate(v.get('dimension', [])):
if d == ':':
dn = 'f2py_%s_d%s' % (a, i)
dv = dict(typespec='integer', intent=['hide'])
dv['='] = 'shape(%s, %s)' % (a, i)
extra_args.append(dn)
vars[dn] = dv
v['dimension'][i] = dn
rout['args'].extend(extra_args)
need_interface = bool(extra_args)
ret = ['']
def add(line, ret=ret):
ret[0] = '%s\n %s' % (ret[0], line)
name = rout['name']
fortranname = getfortranname(rout)
f90mode = ismoduleroutine(rout)
newname = '%sf2pywrap' % (name)
if newname not in vars:
vars[newname] = vars[name]
args = [newname] + rout['args'][1:]
else:
args = [newname] + rout['args']
l = var2fixfortran(vars, name, newname, f90mode)
if l[:13] == 'character*(*)':
if f90mode:
l = 'character(len=10)' + l[13:]
else:
l = 'character*10' + l[13:]
charselect = vars[name]['charselector']
if charselect.get('*', '') == '(*)':
charselect['*'] = '10'
sargs = ', '.join(args)
if f90mode:
add('subroutine f2pywrap_%s_%s (%s)' %
(rout['modulename'], name, sargs))
if not signature:
add('use %s, only : %s' % (rout['modulename'], fortranname))
else:
add('subroutine f2pywrap%s (%s)' % (name, sargs))
if not need_interface:
add('external %s' % (fortranname))
l = l + ', ' + fortranname
if need_interface:
for line in rout['saved_interface'].split('\n'):
if line.lstrip().startswith('use ') and '__user__' not in line:
add(line)
args = args[1:]
dumped_args = []
for a in args:
if isexternal(vars[a]):
add('external %s' % (a))
dumped_args.append(a)
for a in args:
if a in dumped_args:
continue
if isscalar(vars[a]):
add(var2fixfortran(vars, a, f90mode=f90mode))
dumped_args.append(a)
for a in args:
if a in dumped_args:
continue
if isintent_in(vars[a]):
add(var2fixfortran(vars, a, f90mode=f90mode))
dumped_args.append(a)
for a in args:
if a in dumped_args:
continue
add(var2fixfortran(vars, a, f90mode=f90mode))
add(l)
if need_interface:
if f90mode:
# f90 module already defines needed interface
pass
else:
add('interface')
add(rout['saved_interface'].lstrip())
add('end interface')
sargs = ', '.join([a for a in args if a not in extra_args])
if not signature:
if islogicalfunction(rout):
add('%s = .not.(.not.%s(%s))' % (newname, fortranname, sargs))
else:
add('%s = %s(%s)' % (newname, fortranname, sargs))
if f90mode:
add('end subroutine f2pywrap_%s_%s' % (rout['modulename'], name))
else:
add('end')
return ret[0]
def createsubrwrapper(rout, signature=0):
assert issubroutine(rout)
extra_args = []
vars = rout['vars']
for a in rout['args']:
v = rout['vars'][a]
for i, d in enumerate(v.get('dimension', [])):
if d == ':':
dn = 'f2py_%s_d%s' % (a, i)
dv = dict(typespec='integer', intent=['hide'])
dv['='] = 'shape(%s, %s)' % (a, i)
extra_args.append(dn)
vars[dn] = dv
v['dimension'][i] = dn
rout['args'].extend(extra_args)
need_interface = bool(extra_args)
ret = ['']
def add(line, ret=ret):
ret[0] = '%s\n %s' % (ret[0], line)
name = rout['name']
fortranname = getfortranname(rout)
f90mode = ismoduleroutine(rout)
args = rout['args']
sargs = ', '.join(args)
if f90mode:
add('subroutine f2pywrap_%s_%s (%s)' %
(rout['modulename'], name, sargs))
if not signature:
add('use %s, only : %s' % (rout['modulename'], fortranname))
else:
add('subroutine f2pywrap%s (%s)' % (name, sargs))
if not need_interface:
add('external %s' % (fortranname))
if need_interface:
for line in rout['saved_interface'].split('\n'):
if line.lstrip().startswith('use ') and '__user__' not in line:
add(line)
dumped_args = []
for a in args:
if isexternal(vars[a]):
add('external %s' % (a))
dumped_args.append(a)
for a in args:
if a in dumped_args:
continue
if isscalar(vars[a]):
add(var2fixfortran(vars, a, f90mode=f90mode))
dumped_args.append(a)
for a in args:
if a in dumped_args:
continue
add(var2fixfortran(vars, a, f90mode=f90mode))
if need_interface:
if f90mode:
# f90 module already defines needed interface
pass
else:
add('interface')
for line in rout['saved_interface'].split('\n'):
if line.lstrip().startswith('use ') and '__user__' in line:
continue
add(line)
add('end interface')
sargs = ', '.join([a for a in args if a not in extra_args])
if not signature:
add('call %s(%s)' % (fortranname, sargs))
if f90mode:
add('end subroutine f2pywrap_%s_%s' % (rout['modulename'], name))
else:
add('end')
return ret[0]
def assubr(rout):
if isfunction_wrap(rout):
fortranname = getfortranname(rout)
name = rout['name']
outmess('\t\tCreating wrapper for Fortran function "%s"("%s")...\n' % (
name, fortranname))
rout = copy.copy(rout)
fname = name
rname = fname
if 'result' in rout:
rname = rout['result']
rout['vars'][fname] = rout['vars'][rname]
fvar = rout['vars'][fname]
if not isintent_out(fvar):
if 'intent' not in fvar:
fvar['intent'] = []
fvar['intent'].append('out')
flag = 1
for i in fvar['intent']:
if i.startswith('out='):
flag = 0
break
if flag:
fvar['intent'].append('out=%s' % (rname))
rout['args'][:] = [fname] + rout['args']
return rout, createfuncwrapper(rout)
if issubroutine_wrap(rout):
fortranname = getfortranname(rout)
name = rout['name']
outmess('\t\tCreating wrapper for Fortran subroutine "%s"("%s")...\n' % (
name, fortranname))
rout = copy.copy(rout)
return rout, createsubrwrapper(rout)
return rout, ''
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