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cout.py
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cout.py
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from __future__ import division
from libtbx.utils import product
from libtbx import group_args
from libtbx import mutable
from libtbx import Auto
import os.path as op
fmt_comma_placeholder = chr(255)
def break_line_if_necessary(callback, line, max_len=80, min_len=70):
def cb_finalize(line):
callback(line.replace(fmt_comma_placeholder, ","))
nc = len(line)
if (nc <= max_len):
cb_finalize(line)
return
for i_start in xrange(nc):
if (line[i_start] != " "):
break
else:
raise AssertionError
lsw = line.startswith
if (lsw("//", i_start)):
cb_finalize(line)
return
potential_break_points = []
ic = i_start
while (ic < nc):
c = line[ic]
if ("\"'".find(c) >= 0):
q = c
ic_q = ic
ic += 1
while (ic < nc):
prev_c = c
c = line[ic]
ic += 1
if (c == q and prev_c != "\\"):
break
else:
raise AssertionError
elif (c == "("):
ic += 1
potential_break_points.append((0, ic))
elif (lsw(", ", ic)):
ic += 2
potential_break_points.append((1, ic))
elif ( lsw(" = ", ic)
or lsw("), ", ic)):
ic += 3
potential_break_points.append((1, ic))
elif ( lsw(" + ", ic)
or lsw(" - ", ic)
or lsw(" * ", ic)
or lsw(" / ", ic)):
ic += 3
potential_break_points.append((0, ic))
elif ( lsw(" && ", ic)
or lsw(" || ", ic)):
ic += 4
potential_break_points.append((0, ic))
elif (lsw("//", ic)):
break
else:
ic += 1
potential_break_points.append((0, nc))
n = nc - i_start
from libtbx.math_utils import iround, iceil
l = max(min_len, iround(n / iceil(n / (max_len - i_start - 2))))
b = 0
f = 0
def break_more_if_necessary(s):
while (f+len(s) > max_len and s.startswith('"')):
i = max_len-2-f
j = s.rfind(fmt_comma_placeholder, 0, i)
if (j > 4): # ad-hoc value
i = j+1
else:
for j in xrange(i-1,-1,-1):
if (s[j] != "\\"):
if ((i - j ) % 2 == 0):
i -= 1
break
else:
raise AssertionError
cb_finalize(" "*f + s[:i] + '"')
s = '"' + s[i:]
cb_finalize(" "*f + s)
if (lsw("if (", i_start)): indent_width = 4
else: indent_width = 2
pprio = 0
pp = 0
for ip in xrange(len(potential_break_points)):
prio,p = potential_break_points[ip]
def following_point_is_better():
for jp in xrange(ip,len(potential_break_points)):
prio,p = potential_break_points[jp]
if (prio == 1 and p-b+f <= max_len):
return True
return False
if ( p-b+f > l
and b != pp
and (pprio == 1 or not following_point_is_better())):
s = line[b:pp].rstrip()
if (f == 0):
cb_finalize(s)
f = i_start + indent_width
else:
break_more_if_necessary(s=s)
b = pp
pprio = prio
pp = p
if (b < nc):
break_more_if_necessary(s=line[b:])
def break_lines(cpp_text, prev_line=None):
prev_line = [prev_line]
result = []
def callback(line):
if ( prev_line[0] is None
or line != prev_line[0]
or not line.lstrip().startswith("//C")):
result.append(line)
prev_line[0] = line
for line in "\n".join(cpp_text).splitlines():
break_line_if_necessary(callback=callback, line=line)
return result
class dynamic_parameter_props(object):
__slots__ = ["name", "ctype", "default"]
def __init__(O, name, ctype, default):
O.name = name
O.ctype = ctype
O.default = default
def create_buffer_blocks(
target_number_of_blocks,
buffers,
min_lines_per_block=100):
if (target_number_of_blocks >= len(buffers)):
return [[buffer] for buffer in buffers]
numbers_of_lines = [len(lines) for lines in buffers]
sum_lines = sum(numbers_of_lines)
lines_per_block = max(
min_lines_per_block,
sum_lines / target_number_of_blocks)
result = []
block_sum_lines = 0
j = 0
for i,n in enumerate(numbers_of_lines):
if (block_sum_lines + n > lines_per_block):
if (i == j or block_sum_lines <= min_lines_per_block):
result.append(buffers[j:i+1])
block_sum_lines = 0
j = i+1
else:
result.append(buffers[j:i])
block_sum_lines = n
j = i
else:
block_sum_lines += n
if (j < len(buffers)):
result.append(buffers[j:])
assert sum([len(block) for block in result]) == len(buffers)
return result
def show_traceback():
import traceback
print traceback.format_exc(limit=None)
def strip_leading_zeros(string):
for i in xrange(len(string)):
if (string[i] != "0"):
return string[i:]
if (len(string) == 0):
return ""
return "0"
def escape_string_literal(s):
return (s
.replace("\\","\\\\")
.replace('"','\\"')
.replace("\t", "\\t")
.replace("??", "\\?\\?"))
def convert_complex_literal(vmap, tok):
assert len(tok.value) == 4
cc = []
for part in tok.value[1:3]:
c = []
sign_tok, val_tok = part
if (sign_tok is not None):
c.append(sign_tok.value)
c.append(convert_token(vmap=vmap, leading=None, tok=val_tok))
cc.append("".join(c))
return "fem::cmplx(%s)" % ", ".join(cc)
def convert_token(vmap, leading, tok, had_str_concat=None):
tv = tok.value
if (tok.is_identifier()):
return vmap.get(tv, tv)
if (tok.is_op()):
if (tv == ".not."):
return "!"
if (tv == ".and."):
return " && "
if (tv == ".or."):
return " || "
if (tv == ".eqv."):
return " == "
if (tv == ".neqv."):
return " != "
if (tv in ["+", "-"]):
if (leading):
return tv
return " "+tv+" "
if (tv == "*"):
if (leading):
return "star "
return " "+tv+" "
if (tv == "/"):
return " "+tv+" "
if (tv == "//"):
if (had_str_concat is None): tok.raise_internal_error()
had_str_concat.value = True
return " + "
if (tv == ":"):
if (leading):
return "1, "
return ", "
if (tv == ".eq." or tv == "=="):
return " == "
if (tv == ".ne." or tv == "/="):
return " != "
if (tv == ".lt." or tv == "<"):
return " < "
if (tv == ".le." or tv == "<="):
return " <= "
if (tv == ".gt." or tv == ">"):
return " > "
if (tv == ".ge." or tv == ">="):
return " >= "
tok.raise_not_supported()
if (tok.is_string()):
s = '"' + escape_string_literal(tok.value) + '"'
if (had_str_concat is None or not had_str_concat.value):
return s
return "str_cref(%s)" % s
if (tok.is_logical()):
if (tv == ".false."):
return "false"
return "true"
if (tok.is_integer()):
return tv
if (tok.is_hexadecimal()):
return "0x"+tv
if (tok.is_real()):
return tv+"f"
if (tok.is_double_precision()):
return tv.replace("d", "e")
if (tok.is_complex()):
return convert_complex_literal(vmap=vmap, tok=tok)
tok.raise_not_supported()
class major_types_cache(object):
__slots__ = ["identifiers"]
def __init__(O):
O.identifiers = None
def __contains__(O, value):
if (O.identifiers is None):
O.identifiers = set()
import libtbx.load_env
hpp = libtbx.env.under_dist(
module_name="fable", path="fem/major_types.hpp", test=op.isfile)
using_fem = " using fem::"
for line in open(hpp).read().splitlines():
if (line.startswith(using_fem)):
assert line.endswith(";")
O.identifiers.add(line[len(using_fem):-1])
return value in O.identifiers
major_types = major_types_cache()
cpp_keywords = set("""\
and and_eq asm auto bitand bitor bool break case catch char class compl const
const_cast continue default delete do double dynamic_cast else enum explicit
export extern false float for friend goto if inline int long mutable namespace
new not not_eq operator or or_eq private protected public register
reinterpret_cast return short signed sizeof static static_cast struct switch
template this throw true try typedef typeid typename union unsigned using
virtual void volatile wchar_t while xor xor_eq argv argc
""".split())
def prepend_identifier_if_necessary(identifier):
if (identifier in major_types or identifier in cpp_keywords):
return "identifier_" + identifier
return identifier
def produce_comment_given_sl(callback, sl):
if (sl.stmt_offs is None):
t = sl.text[1:]
elif (sl.index_of_exclamation_mark is not None):
t = sl.stmt[sl.index_of_exclamation_mark+1:]
else:
t = None
if (t is not None):
callback("//C%s" % t.expandtabs().rstrip())
def produce_comment_given_ssl(callback, ssl):
if (ssl is None): return
for sl in ssl.source_line_cluster:
produce_comment_given_sl(callback=callback, sl=sl)
return
def produce_comments(callback, ssl_list):
for ssl in ssl_list:
produce_comment_given_ssl(callback=callback, ssl=ssl)
def flush_comments_if_non_trivial(callback, buffer):
for line in buffer:
if (line != "//C"):
for line in buffer:
callback(line)
return
def produce_leading_comments(callback, fproc):
buffer = []
produce_comments(callback=buffer.append, ssl_list=fproc.leading_comments)
produce_comment_given_ssl(
callback=buffer.append, ssl=fproc.top_ssl)
flush_comments_if_non_trivial(callback=callback, buffer=buffer)
def produce_trailing_comments(callback, fproc):
buffer = []
produce_comment_given_ssl(callback=buffer.append, ssl=fproc.end_ssl)
produce_comments(
callback=buffer.append, ssl_list=fproc.trailing_comments)
flush_comments_if_non_trivial(callback=callback, buffer=buffer)
class comment_manager(object):
__slots__ = ["sl_list", "index"]
def __init__(O, fproc):
O.sl_list = []
for ssl in fproc.body_lines:
if (ssl is not None):
for sl in ssl.source_line_cluster:
O.sl_list.append(sl)
def cmp_sl(a, b):
return cmp(a.global_line_index, b.global_line_index)
O.sl_list.sort(cmp_sl)
O.index = 0
def produce(O, callback):
produce_comment_given_sl(callback=callback, sl=O.sl_list[O.index])
O.index += 1
def insert_before(O, executable_info, callback):
i = executable_info.ssl.source_line_cluster[-1].global_line_index
while (O.index != len(O.sl_list)):
j = O.sl_list[O.index].global_line_index
if (j > i):
break
O.produce(callback=callback)
def flush_remaining(O, callback):
while (O.index != len(O.sl_list)):
O.produce(callback=callback)
class conv_hook_info(object):
__slots__ = [
"ignore_common_and_save",
"needs_sve_dynamic_parameters",
"variant_common_names",
"needs_is_called_first_time",
"needs_variant_bind",
"data_init_after_variant_bind"]
def __init__(O):
O.ignore_common_and_save = False
O.needs_sve_dynamic_parameters = False
O.variant_common_names = None
O.needs_is_called_first_time = None
O.needs_variant_bind = None
O.data_init_after_variant_bind = None
class global_conversion_info(object):
__slots__ = [
"topological_fprocs",
"dynamic_parameters",
"fortran_file_comments",
"fem_do_safe",
"arr_nd_size_max",
"inline_all",
"fprocs_by_name",
"converted_commons_info",
"separate_namespaces",
"data_values_block_size",
"data_specializations"]
def __init__(O,
topological_fprocs,
dynamic_parameters,
fortran_file_comments,
fem_do_safe,
arr_nd_size_max,
inline_all,
converted_commons_info,
separate_namespaces,
data_values_block_size,
data_specializations):
O.topological_fprocs = topological_fprocs
O.dynamic_parameters = dynamic_parameters
O.fortran_file_comments = fortran_file_comments
O.fem_do_safe = fem_do_safe
O.arr_nd_size_max = arr_nd_size_max
O.inline_all = inline_all
O.fprocs_by_name = topological_fprocs.all_fprocs.fprocs_by_name()
O.converted_commons_info = converted_commons_info
O.separate_namespaces = separate_namespaces
O.data_values_block_size = data_values_block_size
O.data_specializations = data_specializations
def specialized(O, fproc):
return conversion_info(global_conv_info=O, fproc=fproc)
class conversion_info(global_conversion_info):
__slots__ = global_conversion_info.__slots__ + [
"fproc",
"comment_manager",
"vmap"]
def __init__(O,
global_conv_info=None,
fproc=None,
vmap=None):
val = None
for slot in global_conversion_info.__slots__:
if (global_conv_info is not None):
val = getattr(global_conv_info, slot)
setattr(O, slot, val)
O.fproc = fproc
if (O.fproc is None):
O.comment_manager = None
else:
O.comment_manager = comment_manager(fproc=O.fproc)
if (vmap is None):
O.vmap = {}
else:
O.vmap = vmap
def set_vmap_force_local(O, fdecl):
identifier = fdecl.id_tok.value
O.vmap[identifier] = prepend_identifier_if_necessary(identifier)
def set_vmap_for_callable(O, identifier):
if (O.separate_namespaces is not None):
ns = O.separate_namespaces.get(identifier)
if (ns is not None):
O.vmap[identifier] \
= ns + "::" + prepend_identifier_if_necessary(identifier)
return True
if (identifier in ["getargc", "iargc"]):
O.vmap[identifier] = "cmn.%s" % identifier
return True
from fable import intrinsics
if (identifier in intrinsics.extra_set_lower):
O.vmap[identifier] = "fem::" + identifier
return True
return False
def set_vmap_from_fdecl(O, fdecl):
identifier = fdecl.id_tok.value
if (fdecl.is_common()):
O.vmap[identifier] = "cmn." + prepend_identifier_if_necessary(identifier)
elif (fdecl.is_save()):
O.vmap[identifier] = "sve." + prepend_identifier_if_necessary(identifier)
elif (fdecl.is_intrinsic()):
if (identifier in ["float", "int", "char"]):
O.vmap[identifier] = "fem::f" + identifier
elif (identifier == "iargc"):
O.vmap[identifier] = "cmn.iargc"
else:
O.vmap[identifier] = "fem::" + identifier
elif (not O.set_vmap_for_callable(identifier=fdecl.id_tok.value)):
O.set_vmap_force_local(fdecl=fdecl)
return False
return True
def vmapped(O, fdecl):
identifier = fdecl.id_tok.value
result = O.vmap.get(identifier)
if (result is None):
O.set_vmap_from_fdecl(fdecl=fdecl)
result = O.vmap[identifier]
return result
def vmapped_callable(O, identifier):
result = O.vmap.get(identifier)
if (result is None):
if (not O.set_vmap_for_callable(identifier=identifier)):
O.vmap[identifier] = prepend_identifier_if_necessary(identifier)
result = O.vmap[identifier]
return result
def called_fproc_needs_cmn(conv_info, called_name):
called_names = conv_info.fproc.externals_passed_by_arg_identifier.get(
called_name)
if (called_names is None):
called_names = [called_name]
for called_name in called_names:
sub_fproc = conv_info.fprocs_by_name.get(called_name)
if ( sub_fproc is not None
and sub_fproc.needs_cmn
and not sub_fproc.conv_hook.ignore_common_and_save):
return True
return False
def cmn_needs_to_be_inserted(conv_info, prev_tok):
if ( prev_tok is not None
and prev_tok.is_identifier()
and conv_info.fprocs_by_name is not None
and conv_info.fproc is not None):
fdecl = conv_info.fproc.get_fdecl(id_tok=prev_tok)
if (fdecl.is_user_defined_callable()):
if (called_fproc_needs_cmn(
conv_info=conv_info,
called_name=prev_tok.value)):
return True
return False
def convert_power(conv_info, tokens):
fun = "fem::pow"
pow_tok = tokens[1]
if (pow_tok.is_integer()):
if (pow_tok.value == "1"):
fun = ""
tokens = tokens[:1]
elif (pow_tok.value in ["2","3","4"]):
fun = "fem::pow%s" % pow_tok.value
tokens = tokens[:1]
return fun + "(" + convert_tokens(
conv_info=conv_info, tokens=tokens, commas=True) + ")"
def convert_tokens(conv_info, tokens, commas=False, had_str_concat=None):
result = []
rapp = result.append
prev_tok = None
if (had_str_concat is None):
had_str_concat = mutable(value=False)
from tokenization import group_power
for tok in group_power(tokens=tokens):
if (tok.is_seq()):
if ( len(tok.value) == 2
and tok.value[0].is_op_with(value="*")
and tok.value[1].is_integer()):
rapp("star /* %s UNHANDLED */" % tok.value[1].value)
else:
rapp(convert_tokens(
conv_info=conv_info,
tokens=tok.value,
commas=False,
had_str_concat=had_str_concat))
elif (tok.is_parentheses()):
if (cmn_needs_to_be_inserted(conv_info=conv_info, prev_tok=prev_tok)):
if (len(tok.value) != 0) and (len(tok.value[0].value) != 0):
op = "(cmn, "
else:
op = "(cmn"
else:
op = "("
rapp(op + convert_tokens(
conv_info=conv_info,
tokens=tok.value,
commas=True,
had_str_concat=had_str_concat) + ")")
elif (tok.is_implied_do()):
raise AssertionError
elif (tok.is_power()):
rapp(convert_power(conv_info=conv_info, tokens=tok.value))
else:
rapp(convert_token(
vmap=conv_info.vmap,
leading=(len(result)==0),
tok=tok,
had_str_concat=had_str_concat))
prev_tok = tok
if (commas):
return ", ".join(result)
return "".join(result)
def convert_to_int_literal(tokens):
assert tokens is not None and len(tokens) != 0
if (len(tokens) != 1 or not tokens[0].is_integer()):
tokens[0].raise_not_supported()
return int(strip_leading_zeros(string=tokens[0].value))
def convert_data_type(conv_info, fdecl, crhs):
if (fdecl.data_type is None):
assert conv_info.fproc is not None
fdecl.data_type = conv_info.fproc.implicit.get(fdecl.id_tok.value[0])
if (fdecl.data_type is None):
raise fdecl.id_tok.raise_semantic_error(msg="Missing data type")
if (isinstance(fdecl.data_type, str)):
data_type_code = fdecl.data_type
else:
data_type_code = fdecl.data_type.value
size_tokens = fdecl.size_tokens
dim_tokens = fdecl.dim_tokens
if (data_type_code == "character"):
if (size_tokens is None):
csize = "1"
else:
csize = convert_tokens(conv_info=conv_info, tokens=size_tokens)
ctype = "fem::str<%s>" % csize
if (crhs is None):
crhs = "fem::char0"
else:
def convert_to_ctype_with_size(ctype):
if (size_tokens is None):
return ctype
return "fem::%s_star_%d" % (data_type_code, convert_to_int_literal(
tokens=size_tokens))
if (data_type_code == "logical"):
ctype = convert_to_ctype_with_size(ctype="bool")
elif (data_type_code == "integer"):
ctype = convert_to_ctype_with_size(ctype="int")
elif (data_type_code == "real"):
ctype = convert_to_ctype_with_size(ctype="float")
elif (data_type_code == "doubleprecision"):
if (size_tokens is not None):
size_tokens[0].raise_syntax_error()
ctype = "double"
elif (data_type_code == "byte"):
if (size_tokens is not None):
size_tokens[0].raise_syntax_error()
ctype = "char"
elif (data_type_code == "complex"):
if (size_tokens is None):
ctype = "std::complex<float>"
if (crhs is None):
crhs = "fem::float0"
else:
sz = convert_to_int_literal(tokens=size_tokens)
if (sz == 8):
ctype = "std::complex<float>"
if (crhs is None):
crhs = "fem::float0"
elif (sz == 16):
ctype = "std::complex<double>"
if (crhs is None):
crhs = "fem::double0"
elif (sz == 32):
ctype = "std::complex<long double>"
if (crhs is None):
crhs = "fem::long_double0"
else:
size_tokens[0].raise_not_supported()
elif (data_type_code == "doublecomplex"):
if (size_tokens is not None):
size_tokens[0].raise_not_supported()
ctype = "std::complex<double>"
if (crhs is None):
crhs = "fem::double0"
else:
raise RuntimeError(
"Not implemented: data_type_code = %s" % data_type_code)
return ctype, crhs
def convert_dims(conv_info, dim_tokens):
need_origin = False
for tokens in dim_tokens:
for tok in tokens.value:
if (tok.is_op_with(value=":")):
need_origin = True
break
dims = []
for i_dim,tokens in enumerate(dim_tokens):
cdim = convert_tokens(conv_info=conv_info, tokens=tokens.value)
if (cdim == "star "):
cdim = "star"
else:
cdim = cdim.replace(", * ", ", star") # XXX
if (need_origin):
dims.append("dim%d(%s)" % (i_dim+1, cdim))
else:
dims.append(cdim)
if (need_origin):
result = ".".join(dims)
else:
result = "dimension(" + ", ".join(dims) + ")"
return result
def parenthesize_if_necessary(expr):
from fable import unsigned_integer_scan, identifier_scan
if ( unsigned_integer_scan(code=expr) == len(expr)
or identifier_scan(code=expr) == len(expr)):
return expr
return "(" + expr + ")"
def convert_dim_to_static_size(conv_info, tokens):
def conv(toks):
return convert_tokens(conv_info=conv_info, tokens=toks)
for i,tok in enumerate(tokens):
if (tok.is_op_with(value=":")):
f = parenthesize_if_necessary(expr=conv(toks=tokens[:i]))
l = parenthesize_if_necessary(expr=conv(toks=tokens[i+1:]))
return "%s-%s+1" % (l, f)
return "%s" % conv(toks=tokens)
def convert_dims_to_static_size(conv_info, dim_tokens):
terms = []
for tokens in dim_tokens:
terms.append(convert_dim_to_static_size(conv_info, tokens=tokens.value))
if (len(terms) == 1):
return terms[0]
return " * ".join([parenthesize_if_necessary(expr=expr) for expr in terms])
def convert_data_type_and_dims(conv_info, fdecl, crhs, force_arr=False):
ctype, crhs = convert_data_type(conv_info=conv_info, fdecl=fdecl, crhs=crhs)
dt = fdecl.dim_tokens
cdims = None
cfill0 = "fem::fill0"
if (dt is not None):
atype = None
if ( not force_arr
and conv_info.arr_nd_size_max is not None
and len(dt) <= 3):
vals = conv_info.fproc.eval_dimensions_simple(
dim_tokens=dt, allow_power=False)
if (vals.count(None) == 0):
sz = product(vals)
if (sz <= abs(conv_info.arr_nd_size_max)):
from fable.read import dimensions_are_simple
if (dimensions_are_simple(dim_tokens=dt)):
cdims = Auto
t = convert_tokens(conv_info=conv_info, tokens=dt, commas=True)
else:
t = ", ".join(["%d" % v for v in vals])
t = "%s, %s" % (t, ctype)
if (t.endswith(">")): templs = " "
else: templs = ""
atype = "arr_%dd<%s%s>" % (len(dt), t, templs)
if (conv_info.arr_nd_size_max < 0):
cfill0 = "fem::no_fill0"
if (atype is None):
if (len(dt) != 1):
t = "%s, %d" % (ctype, len(dt))
else:
t = ctype
if (t.endswith(">")): templs = " "
else: templs = ""
atype = "arr<%s%s>" % (t, templs)
ctype = atype
if (cdims is None):
cdims = convert_dims(conv_info=conv_info, dim_tokens=dt)
return ctype, cdims, crhs, cfill0
def ad_hoc_change_arr_to_arr_ref(ctype, cconst=""):
return ctype.replace("arr<", "arr_%sref<" % cconst, 1)
def zero_shortcut_if_possible(ctype):
if (ctype.startswith("fem::")):
if (ctype.endswith(">")): s = " "
else: s = ""
return "fem::zero<%s%s>()" % (ctype, s)
return "fem::%s0" % ctype
def convert_declaration(rapp, conv_info, fdecl, crhs, const):
ctype, cdims, crhs, cfill0 = convert_data_type_and_dims(
conv_info=conv_info, fdecl=fdecl, crhs=crhs)
vname = conv_info.vmapped(fdecl=fdecl)
if (cdims is None):
if (crhs is None): crhs = zero_shortcut_if_possible(ctype=ctype)
def const_qualifier():
if (const): return "const "
return ""
rapp("%s%s %s = %s;" % (const_qualifier(), ctype, vname, crhs))
return False
if (cdims is Auto):
rapp("%s %s(%s);" % (ctype, vname, cfill0))
else:
rapp("%s %s(%s, %s);" % (ctype, vname, cdims, cfill0))
return True
class scope(object):
__slots__ = [
"parent",
"opening_text",
"auto_close_parent",
"closing_text",
"data",
"insert_point",
"trailing_statement_label_index",
"tail"]
def __init__(O, parent, opening_text=None, auto_close_parent=False):
O.parent = parent
O.opening_text = opening_text
O.auto_close_parent = auto_close_parent
O.closing_text = None
O.data = []
O.insert_point = None
O.trailing_statement_label_index = None
O.tail = None
def current_point(O):
return len(O.data)
def point_is_current(O, point):
return (point == len(O.data))
def remember_insert_point(O):
O.insert_point = len(O.data)
def insert_point_is_current(O):
return O.point_is_current(point=O.insert_point)
def top_append(O, obj):
assert O.insert_point is not None
O.data.insert(O.insert_point, obj)
O.insert_point += 1
def append(O, obj):
O.data.append(obj)
O.trailing_statement_label_index = None
def append_statement_label(O, label):
O.trailing_statement_label_index = len(O.data)
O.data.append("statement_%s:" % label)
def append_comment(O, line):
O.data.append(line)
def open_nested_scope(O, opening_text, auto_close_parent=False):
O.trailing_statement_label_index = None
return scope(
parent=O, opening_text=opening_text, auto_close_parent=auto_close_parent)
def finalize(O):
if (O.trailing_statement_label_index is not None):
O.data[O.trailing_statement_label_index] += ";"
def close_nested_scope(O):
assert O.opening_text is not None
assert O.closing_text is None
assert O.tail is None
O.finalize()
O.closing_text = ["}"]
head = O
while (head.parent.tail is head):
head = head.parent
head.parent.data.append(head)
if (head.auto_close_parent):
return head.parent.close_nested_scope()
return head.parent
def attach_tail(O, opening_text):
assert O.opening_text is not None
assert O.closing_text is None
assert O.tail is None
O.finalize()
O.closing_text = ["}"]
O.tail = scope(parent=O, opening_text=opening_text)
return O.tail
def collect_text(O, callback, indent=" "):
for obj in O.data:
if (isinstance(obj, scope)):
curr = obj
while (curr is not None):
for text in curr.opening_text:
callback(indent+text)
curr.collect_text(callback=callback, indent=indent+" ")
for text in curr.closing_text:
callback(indent+text)
curr = curr.tail
else:
callback(indent+obj)
def convert_io_statement_with_err(
conv_info,
curr_scope,
io_function,
io_function_specialization,
io_call_args,
iolist):
if (iolist.err is None):
io_scope = curr_scope
else:
io_scope = curr_scope.open_nested_scope(opening_text=["try {"])
io_scope.append("cmn.io.%s%s(%s)" % (
io_function, io_function_specialization, io_call_args))
for slot in iolist.chain:
tokens = getattr(iolist, slot)
if (tokens is not None):
carg = convert_tokens(conv_info=conv_info, tokens=tokens)
io_scope.append(" .%s(%s)" % (slot, carg))
io_scope.data[-1] += ";"
if (io_scope is not curr_scope):
io_scope.close_nested_scope()
catch_scope = curr_scope.open_nested_scope(
opening_text=["catch (fem::io_err const&) {"])
clabel = convert_tokens(conv_info=conv_info, tokens=iolist.err)
catch_scope.append("goto statement_%s;" % clabel)
catch_scope.close_nested_scope()
def is_simple_do_last(tokens):
i = 0
if (len(tokens) == 2 and tokens[0].is_unary_plus_or_minus()):
i = 1
if (i+1 == len(tokens)):
tok = tokens[i]
return tok.is_identifier() or tok.is_integer()
return False
def convert_to_fem_do(conv_info, parent_scope, i_tok, fls_tokens):
assert 2 <= len(fls_tokens) <= 3
i = convert_token(vmap=conv_info.vmap, leading=True, tok=i_tok)
f = convert_tokens(conv_info=conv_info, tokens=fls_tokens[0].value)
l = convert_tokens(conv_info=conv_info, tokens=fls_tokens[1].value)
if (len(fls_tokens) == 3):
s = convert_tokens(conv_info=conv_info, tokens=fls_tokens[2].value)
return parent_scope.open_nested_scope(
opening_text=["FEM_DOSTEP(%s, %s, %s, %s) {" % (i, f, l, s)])
if (conv_info.fem_do_safe):
return parent_scope.open_nested_scope(
opening_text=["FEM_DO_SAFE(%s, %s, %s) {" % (i, f, l)])
if (is_simple_do_last(tokens=fls_tokens[1].value)):
return parent_scope.open_nested_scope(
opening_text=["FEM_DO(%s, %s, %s) {" % (i, f, l)])
scope_for_last = parent_scope.open_nested_scope(opening_text=["{"])
scope_for_last.append("int fem_do_last = %s;" % l)
return scope_for_last.open_nested_scope(
opening_text=["FEM_DO(%s, %s, fem_do_last) {" % (i, f)],
auto_close_parent=True)
def find_implied_dos(result, tokens):
assert isinstance(tokens, list)
for i,tok in enumerate(tokens):
if (tok.is_seq_or_parentheses()):
find_implied_dos(result=result, tokens=tok.value)
elif (tok.is_implied_do()):
result.append(tok)
def convert_io_loop(
io_scope, io_op, conv_info, tokens, cbuf=None, had_str_concat=None):
class cbuffer(object):
__slots__ = ["strings", "leading"]
def __init__(O):
O.strings = []
O.leading = True
def append(O, string):
O.strings.append(string)
O.leading = False
def append_comma(O):
if (len(O.strings) != 0 and O.strings[-1] != ", "):
O.strings.append(", ")
O.leading = True
def remove_trailing_comma(O):
if (len(O.strings) != 0):
assert O.strings[-1] == ", "
O.strings.pop()
assert O.leading
O.leading = False
def append_opening_parenthesis(O):
O.strings.append("(")
O.leading = True
def append_closing_parenthesis(O):
assert len(O.strings) != 0
if (O.strings[-1] == ", "):
O.remove_trailing_comma()
O.strings.append(")")
def flush(O):
O.remove_trailing_comma()
if (len(O.strings) != 0):
io_scope.append("%s, %s;" % (io_op, "".join(O.strings)))
O.strings = []
if (cbuf is None):
cbuf = cbuffer()
owning_cbuf = True
else:
owning_cbuf = False
prev_tok = None
if (had_str_concat is None):
had_str_concat = mutable(value=False)
from tokenization import group_power
for tok in group_power(tokens=tokens):
if (tok.is_seq()):
convert_io_loop(