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func2subr.py
#!/usr/bin/env python3 """ Rules for building C/API module with f2py2e. Copyright 1999,2000 Pearu Peterson all rights reserved, Pearu Peterson <pearu@ioc.ee> 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 """ 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_tmpl = var2fixfortran(vars, name, '@@@NAME@@@', f90mode) if l_tmpl[:13] == 'character*(*)': if f90mode: l_tmpl = 'character(len=10)' + l_tmpl[13:] else: l_tmpl = 'character*10' + l_tmpl[13:] charselect = vars[name]['charselector'] if charselect.get('*', '') == '(*)': charselect['*'] = '10' l1 = l_tmpl.replace('@@@NAME@@@', newname) rl = None sargs = ', '.join(args) if f90mode: # gh-23598 fix warning # Essentially, this gets called again with modules where the name of the # function is added to the arguments, which is not required, and removed sargs = sargs.replace(f"{name}, ", '') args = [arg for arg in args if arg != name] rout['args'] = args 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)) rl = l_tmpl.replace('@@@NAME@@@', '') + ' ' + 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(l1) if rl is not None: add(rl) 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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