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#!/usr/bin/env python3
"""
Build common block mechanism for f2py2e.
Copyright 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: 2005/05/06 10:57:33 $
Pearu Peterson
"""
from . import __version__
f2py_version = __version__.version
from .auxfuncs import (
hasbody, hascommon, hasnote, isintent_hide, outmess
)
from . import capi_maps
from . import func2subr
from .crackfortran import rmbadname
def findcommonblocks(block, top=1):
ret = []
if hascommon(block):
for key, value in block['common'].items():
vars_ = {v: block['vars'][v] for v in value}
ret.append((key, value, vars_))
elif hasbody(block):
for b in block['body']:
ret = ret + findcommonblocks(b, 0)
if top:
tret = []
names = []
for t in ret:
if t[0] not in names:
names.append(t[0])
tret.append(t)
return tret
return ret
def buildhooks(m):
ret = {'commonhooks': [], 'initcommonhooks': [],
'docs': ['"COMMON blocks:\\n"']}
fwrap = ['']
def fadd(line, s=fwrap):
s[0] = '%s\n %s' % (s[0], line)
chooks = ['']
def cadd(line, s=chooks):
s[0] = '%s\n%s' % (s[0], line)
ihooks = ['']
def iadd(line, s=ihooks):
s[0] = '%s\n%s' % (s[0], line)
doc = ['']
def dadd(line, s=doc):
s[0] = '%s\n%s' % (s[0], line)
for (name, vnames, vars) in findcommonblocks(m):
lower_name = name.lower()
hnames, inames = [], []
for n in vnames:
if isintent_hide(vars[n]):
hnames.append(n)
else:
inames.append(n)
if hnames:
outmess('\t\tConstructing COMMON block support for "%s"...\n\t\t %s\n\t\t Hidden: %s\n' % (
name, ','.join(inames), ','.join(hnames)))
else:
outmess('\t\tConstructing COMMON block support for "%s"...\n\t\t %s\n' % (
name, ','.join(inames)))
fadd('subroutine f2pyinit%s(setupfunc)' % name)
fadd('external setupfunc')
for n in vnames:
fadd(func2subr.var2fixfortran(vars, n))
if name == '_BLNK_':
fadd('common %s' % (','.join(vnames)))
else:
fadd('common /%s/ %s' % (name, ','.join(vnames)))
fadd('call setupfunc(%s)' % (','.join(inames)))
fadd('end\n')
cadd('static FortranDataDef f2py_%s_def[] = {' % (name))
idims = []
for n in inames:
ct = capi_maps.getctype(vars[n])
elsize = capi_maps.get_elsize(vars[n])
at = capi_maps.c2capi_map[ct]
dm = capi_maps.getarrdims(n, vars[n])
if dm['dims']:
idims.append('(%s)' % (dm['dims']))
else:
idims.append('')
dms = dm['dims'].strip()
if not dms:
dms = '-1'
cadd('\t{\"%s\",%s,{{%s}},%s, %s},'
% (n, dm['rank'], dms, at, elsize))
cadd('\t{NULL}\n};')
inames1 = rmbadname(inames)
inames1_tps = ','.join(['char *' + s for s in inames1])
cadd('static void f2py_setup_%s(%s) {' % (name, inames1_tps))
cadd('\tint i_f2py=0;')
for n in inames1:
cadd('\tf2py_%s_def[i_f2py++].data = %s;' % (name, n))
cadd('}')
if '_' in lower_name:
F_FUNC = 'F_FUNC_US'
else:
F_FUNC = 'F_FUNC'
cadd('extern void %s(f2pyinit%s,F2PYINIT%s)(void(*)(%s));'
% (F_FUNC, lower_name, name.upper(),
','.join(['char*'] * len(inames1))))
cadd('static void f2py_init_%s(void) {' % name)
cadd('\t%s(f2pyinit%s,F2PYINIT%s)(f2py_setup_%s);'
% (F_FUNC, lower_name, name.upper(), name))
cadd('}\n')
iadd('\ttmp = PyFortranObject_New(f2py_%s_def,f2py_init_%s);' % (name, name))
iadd('\tif (tmp == NULL) return NULL;')
iadd('\tif (F2PyDict_SetItemString(d, \"%s\", tmp) == -1) return NULL;'
% name)
iadd('\tPy_DECREF(tmp);')
tname = name.replace('_', '\\_')
dadd('\\subsection{Common block \\texttt{%s}}\n' % (tname))
dadd('\\begin{description}')
for n in inames:
dadd('\\item[]{{}\\verb@%s@{}}' %
(capi_maps.getarrdocsign(n, vars[n])))
if hasnote(vars[n]):
note = vars[n]['note']
if isinstance(note, list):
note = '\n'.join(note)
dadd('--- %s' % (note))
dadd('\\end{description}')
ret['docs'].append(
'"\t/%s/ %s\\n"' % (name, ','.join(map(lambda v, d: v + d, inames, idims))))
ret['commonhooks'] = chooks
ret['initcommonhooks'] = ihooks
ret['latexdoc'] = doc[0]
if len(ret['docs']) <= 1:
ret['docs'] = ''
return ret, fwrap[0]
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