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Diffstat (limited to 'sources/shiboken2/shibokenmodule/files.dir/shibokensupport/signature/parser.py')
| -rw-r--r-- | sources/shiboken2/shibokenmodule/files.dir/shibokensupport/signature/parser.py | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/sources/shiboken2/shibokenmodule/files.dir/shibokensupport/signature/parser.py b/sources/shiboken2/shibokenmodule/files.dir/shibokensupport/signature/parser.py deleted file mode 100644 index 72ca35757..000000000 --- a/sources/shiboken2/shibokenmodule/files.dir/shibokensupport/signature/parser.py +++ /dev/null @@ -1,308 +0,0 @@ -############################################################################# -## -## Copyright (C) 2019 The Qt Company Ltd. -## Contact: https://www.qt.io/licensing/ -## -## This file is part of Qt for Python. -## -## $QT_BEGIN_LICENSE:LGPL$ -## Commercial License Usage -## Licensees holding valid commercial Qt licenses may use this file in -## accordance with the commercial license agreement provided with the -## Software or, alternatively, in accordance with the terms contained in -## a written agreement between you and The Qt Company. For licensing terms -## and conditions see https://www.qt.io/terms-conditions. For further -## information use the contact form at https://www.qt.io/contact-us. -## -## GNU Lesser General Public License Usage -## Alternatively, this file may be used under the terms of the GNU Lesser -## General Public License version 3 as published by the Free Software -## Foundation and appearing in the file LICENSE.LGPL3 included in the -## packaging of this file. Please review the following information to -## ensure the GNU Lesser General Public License version 3 requirements -## will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -## -## GNU General Public License Usage -## Alternatively, this file may be used under the terms of the GNU -## General Public License version 2.0 or (at your option) the GNU General -## Public license version 3 or any later version approved by the KDE Free -## Qt Foundation. The licenses are as published by the Free Software -## Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -## included in the packaging of this file. Please review the following -## information to ensure the GNU General Public License requirements will -## be met: https://www.gnu.org/licenses/gpl-2.0.html and -## https://www.gnu.org/licenses/gpl-3.0.html. -## -## $QT_END_LICENSE$ -## -############################################################################# - -from __future__ import print_function, absolute_import - -import sys -import re -import warnings -import types -import keyword -import functools -from shibokensupport.signature.mapping import (type_map, update_mapping, - namespace, typing, _NotCalled) - -_DEBUG = False -LIST_KEYWORDS = False - -""" -parser.py - -This module parses the signature text and creates properties for the -signature objects. - -PySide has a new function 'CppGenerator::writeSignatureInfo()' -that extracts the gathered information about the function arguments -and defaults as good as it can. But what PySide generates is still -very C-ish and has many constants that Python doesn't understand. - -The function 'try_to_guess()' below understands a lot of PySide's -peculiar way to assume local context. If it is able to do the guess, -then the result is inserted into the dict, so the search happens -not again. For everything that is not covered by these automatic -guesses, we provide an entry in 'type_map' that resolves it. - -In effect, 'type_map' maps text to real Python objects. -""" - -def dprint(*args, **kw): - if _DEBUG: - import pprint - for arg in args: - pprint.pprint(arg) - sys.stdout.flush() - -def _parse_line(line): - line_re = r""" - ((?P<multi> ([0-9]+)) : )? # the optional multi-index - (?P<funcname> \w+(\.\w+)*) # the function name - \( (?P<arglist> .*?) \) # the argument list - ( -> (?P<returntype> .*) )? # the optional return type - $ - """ - ret = re.match(line_re, line, re.VERBOSE).groupdict() - arglist = ret["arglist"] - # The following is a split re. The string is broken into pieces which are - # between the recognized strings. Because the re has groups, both the - # strings and the delimiters are returned, where the strings are not - # interesting at all: They are just the commata. - # Note that it is necessary to put the characters with special handling in - # the first group (comma, brace, angle bracket). - # Then they are not recognized there, and we can handle them differently - # in the following expressions. - arglist = list(x.strip() for x in re.split(r""" - ( - (?: # inner group is not capturing - [^,()<>] # no commas or braces or angle brackets - | - \( - (?: - [^()]* # or one brace pair - | - \( - [^()]* # or doubls nested pair - \) - )* - \) - | - < # or one angle bracket pair - [^<>]* - > - )+ # longest possible span - ) # this list is interspersed with "," and surrounded by "" - """, arglist, flags=re.VERBOSE) - if x.strip() not in ("", ",")) - args = [] - for arg in arglist: - name, ann = arg.split(":") - if name in keyword.kwlist: - if LIST_KEYWORDS: - print("KEYWORD", ret) - name = name + "_" - if "=" in ann: - ann, default = ann.split("=") - tup = name, ann, default - else: - tup = name, ann - args.append(tup) - ret["arglist"] = args - multi = ret["multi"] - if multi is not None: - ret["multi"] = int(multi) - funcname = ret["funcname"] - parts = funcname.split(".") - if parts[-1] in keyword.kwlist: - ret["funcname"] = funcname + "_" - return ret - -def make_good_value(thing, valtype): - try: - if thing.endswith("()"): - thing = 'Default("{}")'.format(thing[:-2]) - else: - ret = eval(thing, namespace) - if valtype and repr(ret).startswith("<"): - thing = 'Instance("{}")'.format(thing) - return eval(thing, namespace) - except Exception: - pass - -def try_to_guess(thing, valtype): - if "." not in thing and "(" not in thing: - text = "{}.{}".format(valtype, thing) - ret = make_good_value(text, valtype) - if ret is not None: - return ret - typewords = valtype.split(".") - valwords = thing.split(".") - braceless = valwords[0] # Yes, not -1. Relevant is the overlapped word. - if "(" in braceless: - braceless = braceless[:braceless.index("(")] - for idx, w in enumerate(typewords): - if w == braceless: - text = ".".join(typewords[:idx] + valwords) - ret = make_good_value(text, valtype) - if ret is not None: - return ret - return None - -def _resolve_value(thing, valtype, line): - if thing in ("0", "None") and valtype: - thing = "zero({})".format(valtype) - if thing in type_map: - return type_map[thing] - res = make_good_value(thing, valtype) - if res is not None: - type_map[thing] = res - return res - res = try_to_guess(thing, valtype) if valtype else None - if res is not None: - type_map[thing] = res - return res - warnings.warn("""pyside_type_init: - - UNRECOGNIZED: {!r} - OFFENDING LINE: {!r} - """.format(thing, line), RuntimeWarning) - return thing - -def _resolve_arraytype(thing, line): - thing = thing[:-2] - if thing.endswith("[]"): - thing = _resolve_arraytype(thing, line) - # this mapping is in shiboken - thing = "QList[" + thing + "]" - return thing - -def to_string(thing): - if isinstance(thing, str): - return thing - if hasattr(thing, "__name__"): - dot = "." in str(type(thing)) - return thing.__module__ + "." + thing.__name__ if dot else thing.__name__ - # Note: This captures things from the typing module: - return str(thing) - -def _resolve_type(thing, line): - if thing.endswith("[]"): - thing = _resolve_arraytype(thing, line) - if "[" in thing: - # Handle a container return type. (see PYSIDE-921 in cppgenerator.cpp) - contr, thing = re.match(r"(.*?)\[(.*?)\]$", thing).groups() - contr = to_string(_resolve_type(contr, line)) - thing = to_string(_resolve_type(thing, line)) - result = "{contr}[{thing}]".format(**locals()) - if not isinstance(thing, _NotCalled): - result = eval(result, namespace) - return result - return _resolve_value(thing, None, line) - -def calculate_props(line): - res = _parse_line(line) - arglist = res["arglist"] - annotations = {} - _defaults = [] - for idx, tup in enumerate(arglist): - name, ann = tup[:2] - if ann == "...": - name = "*args" - # copy the fields back :() - ann = 'NULL' # maps to None - tup = name, ann - arglist[idx] = tup - annotations[name] = _resolve_type(ann, line) - if len(tup) == 3: - default = _resolve_value(tup[2], ann, line) - _defaults.append(default) - defaults = tuple(_defaults) - returntype = res["returntype"] - if returntype is not None: - annotations["return"] = _resolve_type(returntype, line) - props = {} - props["defaults"] = defaults - props["kwdefaults"] = {} - props["annotations"] = annotations - props["varnames"] = varnames = tuple(tup[0] for tup in arglist) - funcname = res["funcname"] - props["fullname"] = funcname - shortname = funcname[funcname.rindex(".")+1:] - props["name"] = shortname - props["multi"] = res["multi"] - return props - -def fixup_multilines(lines): - res = [] - multi_lines = [] - for line in lines: - multi = re.match(r"([0-9]+):", line) - if multi: - idx, rest = int(multi.group(1)), line[multi.end():] - multi_lines.append(rest) - if idx > 0: - continue - # remove duplicates - multi_lines = sorted(set(multi_lines)) - # renumber or return a single line - nmulti = len(multi_lines) - if nmulti > 1: - for idx, line in enumerate(multi_lines): - res.append("{}:{}".format(nmulti-idx-1, line)) - else: - res.append(multi_lines[0]) - multi_lines = [] - else: - res.append(line) - return res - -def pyside_type_init(type_key, sig_strings): - dprint() - dprint("Initialization of type key '{}'".format(type_key)) - update_mapping() - lines = fixup_multilines(sig_strings) - ret = {} - multi_props = [] - for line in lines: - props = calculate_props(line) - shortname = props["name"] - multi = props["multi"] - if multi is None: - ret[shortname] = props - dprint(props) - else: - multi_props.append(props) - if multi > 0: - continue - fullname = props.pop("fullname") - multi_props = {"multi": multi_props, "fullname": fullname} - ret[shortname] = multi_props - dprint(multi_props) - multi_props = [] - return ret - -# end of file |