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venv
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323
venv/lib/python3.12/site-packages/numpy/f2py/func2subr.py
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323
venv/lib/python3.12/site-packages/numpy/f2py/func2subr.py
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"""
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Rules for building C/API module with f2py2e.
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Copyright 1999 -- 2011 Pearu Peterson all rights reserved.
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Copyright 2011 -- present NumPy Developers.
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Permission to use, modify, and distribute this software is given under the
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terms of the NumPy License.
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NO WARRANTY IS EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
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"""
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import copy
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from .auxfuncs import (
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getfortranname, isexternal, isfunction, isfunction_wrap, isintent_in,
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isintent_out, islogicalfunction, ismoduleroutine, isscalar,
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issubroutine, issubroutine_wrap, outmess, show
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)
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from ._isocbind import isoc_kindmap
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def var2fixfortran(vars, a, fa=None, f90mode=None):
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if fa is None:
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fa = a
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if a not in vars:
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show(vars)
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outmess('var2fixfortran: No definition for argument "%s".\n' % a)
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return ''
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if 'typespec' not in vars[a]:
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show(vars[a])
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outmess('var2fixfortran: No typespec for argument "%s".\n' % a)
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return ''
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vardef = vars[a]['typespec']
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if vardef == 'type' and 'typename' in vars[a]:
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vardef = '%s(%s)' % (vardef, vars[a]['typename'])
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selector = {}
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lk = ''
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if 'kindselector' in vars[a]:
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selector = vars[a]['kindselector']
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lk = 'kind'
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elif 'charselector' in vars[a]:
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selector = vars[a]['charselector']
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lk = 'len'
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if '*' in selector:
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if f90mode:
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if selector['*'] in ['*', ':', '(*)']:
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vardef = '%s(len=*)' % (vardef)
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else:
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vardef = '%s(%s=%s)' % (vardef, lk, selector['*'])
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else:
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if selector['*'] in ['*', ':']:
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vardef = '%s*(%s)' % (vardef, selector['*'])
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else:
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vardef = '%s*%s' % (vardef, selector['*'])
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else:
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if 'len' in selector:
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vardef = '%s(len=%s' % (vardef, selector['len'])
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if 'kind' in selector:
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vardef = '%s,kind=%s)' % (vardef, selector['kind'])
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else:
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vardef = '%s)' % (vardef)
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elif 'kind' in selector:
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vardef = '%s(kind=%s)' % (vardef, selector['kind'])
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vardef = '%s %s' % (vardef, fa)
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if 'dimension' in vars[a]:
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vardef = '%s(%s)' % (vardef, ','.join(vars[a]['dimension']))
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return vardef
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def useiso_c_binding(rout):
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useisoc = False
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for key, value in rout['vars'].items():
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kind_value = value.get('kindselector', {}).get('kind')
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if kind_value in isoc_kindmap:
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return True
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return useisoc
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def createfuncwrapper(rout, signature=0):
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assert isfunction(rout)
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extra_args = []
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vars = rout['vars']
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for a in rout['args']:
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v = rout['vars'][a]
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for i, d in enumerate(v.get('dimension', [])):
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if d == ':':
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dn = 'f2py_%s_d%s' % (a, i)
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dv = dict(typespec='integer', intent=['hide'])
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dv['='] = 'shape(%s, %s)' % (a, i)
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extra_args.append(dn)
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vars[dn] = dv
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v['dimension'][i] = dn
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rout['args'].extend(extra_args)
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need_interface = bool(extra_args)
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ret = ['']
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def add(line, ret=ret):
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ret[0] = '%s\n %s' % (ret[0], line)
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name = rout['name']
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fortranname = getfortranname(rout)
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f90mode = ismoduleroutine(rout)
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newname = '%sf2pywrap' % (name)
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if newname not in vars:
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vars[newname] = vars[name]
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args = [newname] + rout['args'][1:]
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else:
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args = [newname] + rout['args']
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l_tmpl = var2fixfortran(vars, name, '@@@NAME@@@', f90mode)
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if l_tmpl[:13] == 'character*(*)':
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if f90mode:
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l_tmpl = 'character(len=10)' + l_tmpl[13:]
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else:
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l_tmpl = 'character*10' + l_tmpl[13:]
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charselect = vars[name]['charselector']
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if charselect.get('*', '') == '(*)':
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charselect['*'] = '10'
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l1 = l_tmpl.replace('@@@NAME@@@', newname)
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rl = None
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useisoc = useiso_c_binding(rout)
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sargs = ', '.join(args)
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if f90mode:
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# gh-23598 fix warning
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# Essentially, this gets called again with modules where the name of the
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# function is added to the arguments, which is not required, and removed
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sargs = sargs.replace(f"{name}, ", '')
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args = [arg for arg in args if arg != name]
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rout['args'] = args
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add('subroutine f2pywrap_%s_%s (%s)' %
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(rout['modulename'], name, sargs))
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if not signature:
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add('use %s, only : %s' % (rout['modulename'], fortranname))
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if useisoc:
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add('use iso_c_binding')
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else:
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add('subroutine f2pywrap%s (%s)' % (name, sargs))
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if useisoc:
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add('use iso_c_binding')
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if not need_interface:
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add('external %s' % (fortranname))
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rl = l_tmpl.replace('@@@NAME@@@', '') + ' ' + fortranname
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if need_interface:
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for line in rout['saved_interface'].split('\n'):
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if line.lstrip().startswith('use ') and '__user__' not in line:
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add(line)
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args = args[1:]
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dumped_args = []
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for a in args:
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if isexternal(vars[a]):
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add('external %s' % (a))
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dumped_args.append(a)
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for a in args:
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if a in dumped_args:
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continue
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if isscalar(vars[a]):
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add(var2fixfortran(vars, a, f90mode=f90mode))
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dumped_args.append(a)
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for a in args:
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if a in dumped_args:
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continue
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if isintent_in(vars[a]):
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add(var2fixfortran(vars, a, f90mode=f90mode))
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dumped_args.append(a)
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for a in args:
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if a in dumped_args:
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continue
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add(var2fixfortran(vars, a, f90mode=f90mode))
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add(l1)
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if rl is not None:
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add(rl)
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if need_interface:
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if f90mode:
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# f90 module already defines needed interface
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pass
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else:
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add('interface')
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add(rout['saved_interface'].lstrip())
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add('end interface')
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sargs = ', '.join([a for a in args if a not in extra_args])
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if not signature:
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if islogicalfunction(rout):
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add('%s = .not.(.not.%s(%s))' % (newname, fortranname, sargs))
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else:
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add('%s = %s(%s)' % (newname, fortranname, sargs))
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if f90mode:
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add('end subroutine f2pywrap_%s_%s' % (rout['modulename'], name))
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else:
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add('end')
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return ret[0]
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def createsubrwrapper(rout, signature=0):
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assert issubroutine(rout)
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extra_args = []
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vars = rout['vars']
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for a in rout['args']:
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v = rout['vars'][a]
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for i, d in enumerate(v.get('dimension', [])):
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if d == ':':
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dn = 'f2py_%s_d%s' % (a, i)
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dv = dict(typespec='integer', intent=['hide'])
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dv['='] = 'shape(%s, %s)' % (a, i)
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extra_args.append(dn)
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vars[dn] = dv
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v['dimension'][i] = dn
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rout['args'].extend(extra_args)
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need_interface = bool(extra_args)
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ret = ['']
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def add(line, ret=ret):
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ret[0] = '%s\n %s' % (ret[0], line)
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name = rout['name']
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fortranname = getfortranname(rout)
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f90mode = ismoduleroutine(rout)
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args = rout['args']
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useisoc = useiso_c_binding(rout)
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sargs = ', '.join(args)
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if f90mode:
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add('subroutine f2pywrap_%s_%s (%s)' %
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(rout['modulename'], name, sargs))
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if useisoc:
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add('use iso_c_binding')
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if not signature:
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add('use %s, only : %s' % (rout['modulename'], fortranname))
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else:
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add('subroutine f2pywrap%s (%s)' % (name, sargs))
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if useisoc:
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add('use iso_c_binding')
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if not need_interface:
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add('external %s' % (fortranname))
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if need_interface:
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for line in rout['saved_interface'].split('\n'):
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if line.lstrip().startswith('use ') and '__user__' not in line:
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add(line)
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dumped_args = []
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for a in args:
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if isexternal(vars[a]):
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add('external %s' % (a))
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dumped_args.append(a)
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for a in args:
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if a in dumped_args:
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continue
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if isscalar(vars[a]):
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add(var2fixfortran(vars, a, f90mode=f90mode))
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dumped_args.append(a)
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for a in args:
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if a in dumped_args:
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continue
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add(var2fixfortran(vars, a, f90mode=f90mode))
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if need_interface:
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if f90mode:
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# f90 module already defines needed interface
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pass
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else:
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add('interface')
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for line in rout['saved_interface'].split('\n'):
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if line.lstrip().startswith('use ') and '__user__' in line:
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continue
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add(line)
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add('end interface')
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sargs = ', '.join([a for a in args if a not in extra_args])
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if not signature:
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add('call %s(%s)' % (fortranname, sargs))
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if f90mode:
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add('end subroutine f2pywrap_%s_%s' % (rout['modulename'], name))
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else:
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add('end')
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return ret[0]
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def assubr(rout):
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if isfunction_wrap(rout):
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fortranname = getfortranname(rout)
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name = rout['name']
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outmess('\t\tCreating wrapper for Fortran function "%s"("%s")...\n' % (
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name, fortranname))
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rout = copy.copy(rout)
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fname = name
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rname = fname
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if 'result' in rout:
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rname = rout['result']
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rout['vars'][fname] = rout['vars'][rname]
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fvar = rout['vars'][fname]
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if not isintent_out(fvar):
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if 'intent' not in fvar:
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fvar['intent'] = []
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fvar['intent'].append('out')
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flag = 1
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for i in fvar['intent']:
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if i.startswith('out='):
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flag = 0
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break
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if flag:
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fvar['intent'].append('out=%s' % (rname))
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rout['args'][:] = [fname] + rout['args']
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return rout, createfuncwrapper(rout)
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if issubroutine_wrap(rout):
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fortranname = getfortranname(rout)
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name = rout['name']
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outmess('\t\tCreating wrapper for Fortran subroutine "%s"("%s")...\n'
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% (name, fortranname))
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rout = copy.copy(rout)
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return rout, createsubrwrapper(rout)
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return rout, ''
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