5982b0b0b8
to member naming a weak member to nullptr. This fixes a miscompile where constant evaluation would incorrectly determine that a weak member function pointer is never null. In passing, also improve the diagnostics for constant evaluation of some nearby cases.
252 lines
7.7 KiB
Python
Executable File
252 lines
7.7 KiB
Python
Executable File
#! /usr/bin/env python3
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import sys, os, re, urllib.request
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default_issue_list_path = 'cwg_index.html'
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issue_list_url = "https://www.open-std.org/jtc1/sc22/wg21/docs/cwg_index.html"
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output = 'cxx_dr_status.html'
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dr_test_dir = '../test/CXX/drs'
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class DR:
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def __init__(self, section, issue, url, status, title):
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self.section, self.issue, self.url, self.status, self.title = \
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section, issue, url, status, title
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def __repr__(self):
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return '%s (%s): %s' % (self.issue, self.status, self.title)
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def parse(dr):
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try:
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section, issue_link, status, liaison, title = [
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col.split('>', 1)[1].split('</TD>')[0]
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for col in dr.split('</TR>', 1)[0].split('<TD')[1:]
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]
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except Exception as ex:
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print(f"Parse error: {ex}\n{dr}", file=sys.stderr)
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sys.exit(1)
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_, url, issue = issue_link.split('"', 2)
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url = url.strip()
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issue = int(issue.split('>', 1)[1].split('<', 1)[0])
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title = title.replace('<issue_title>', '').replace('</issue_title>', '').replace('\r\n', '\n').strip()
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return DR(section, issue, url, status, title)
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def collect_tests():
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status_re = re.compile(r'\bdr([0-9]+): (.*)')
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status_map = {}
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for test_cpp in os.listdir(dr_test_dir):
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if not test_cpp.endswith('.cpp'):
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continue
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test_cpp = os.path.join(dr_test_dir, test_cpp)
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found_any = False;
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for match in re.finditer(status_re, open(test_cpp, 'r').read()):
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status_map[int(match.group(1))] = match.group(2)
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found_any = True
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if not found_any:
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print("warning:%s: no '// dr123: foo' comments in this file" % test_cpp, file=sys.stderr)
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return status_map
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def get_issues(path):
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buffer = None
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if not path and os.path.exists(default_issue_list_path):
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path = default_issue_list_path
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try:
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if path is None:
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print('Fetching issue list from {}'.format(issue_list_url))
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with urllib.request.urlopen(issue_list_url) as f:
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buffer = f.read().decode('utf-8')
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else:
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print('Opening issue list from file {}'.format(path))
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with open(path, 'r') as f:
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buffer = f.read()
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except Exception as ex:
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print('Unable to read the core issue list', file=sys.stderr)
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print(ex, file=sys.stderr)
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sys.exit(1)
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return sorted((parse(dr) for dr in buffer.split('<TR>')[2:]),
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key = lambda dr: dr.issue)
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issue_list_path = None
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if len(sys.argv) == 1:
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pass
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elif len(sys.argv) == 2:
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issue_list_path = sys.argv[1]
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else:
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print('Usage: {} [<path to cwg_index.html>]'.format(sys.argv[0]), file=sys.stderr)
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sys.exit(1)
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status_map = collect_tests()
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drs = get_issues(issue_list_path)
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out_file = open(output, 'w')
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out_file.write('''\
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<!DOCTYPE html>
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<!-- This file is auto-generated by make_cxx_dr_status. Do not modify. -->
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<html>
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<head>
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<META http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>Clang - C++ Defect Report Status</title>
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<link type="text/css" rel="stylesheet" href="menu.css">
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<link type="text/css" rel="stylesheet" href="content.css">
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<style type="text/css">
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.none { background-color: #FFCCCC }
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.partial { background-color: #FFE0B0 }
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.unreleased { background-color: #FFFF99 }
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.full { background-color: #CCFF99 }
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.na { background-color: #DDDDDD }
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.open * { color: #AAAAAA }
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//.open { filter: opacity(0.2) }
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tr:target { background-color: #FFFFBB }
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th { background-color: #FFDDAA }
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</style>
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</head>
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<body>
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<!--#include virtual="menu.html.incl"-->
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<div id="content">
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<!--*************************************************************************-->
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<h1>C++ Defect Report Support in Clang</h1>
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<!--*************************************************************************-->
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<h2 id="cxxdr">C++ defect report implementation status</h2>
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<p>This page tracks which C++ defect reports are implemented within Clang.</p>
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<table width="689" border="1" cellspacing="0">
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<tr>
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<th>Number</th>
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<th>Status</th>
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<th>Issue title</th>
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<th>Available in Clang?</th>
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</tr>''')
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latest_release = 15
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def availability(issue):
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status = status_map.get(issue, 'unknown')
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unresolved_status = ''
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if status.endswith(' open'):
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status = status[:-5]
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unresolved_status = 'open'
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elif status.endswith(' drafting'):
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status = status[:-9]
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unresolved_status = 'drafting'
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elif status.endswith(' review'):
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status = status[:-7]
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unresolved_status = 'review'
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avail_suffix = ''
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if status.endswith(' c++11'):
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status = status[:-6]
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avail_suffix = ' (C++11 onwards)'
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elif status.endswith(' c++14'):
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status = status[:-6]
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avail_suffix = ' (C++14 onwards)'
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elif status.endswith(' c++17'):
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status = status[:-6]
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avail_suffix = ' (C++17 onwards)'
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elif status.endswith(' c++20'):
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status = status[:-6]
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avail_suffix = ' (C++20 onwards)'
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if status == 'unknown':
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avail = 'Unknown'
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avail_style = ' class="none"'
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elif re.match('^[0-9]+\.?[0-9]*', status):
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avail = 'Clang %s' % status
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if float(status) > latest_release:
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avail_style = ' class="unreleased"'
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else:
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avail_style = ' class="full"'
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elif status == 'yes':
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avail = 'Yes'
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avail_style = ' class="full"'
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elif status == 'partial':
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avail = 'Partial'
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avail_style = ' class="partial"'
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elif status == 'no':
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avail = 'No'
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avail_style = ' class="none"'
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elif status == 'na':
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avail = 'N/A'
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avail_style = ' class="na"'
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elif status == 'na lib':
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avail = 'N/A (Library DR)'
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avail_style = ' class="na"'
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elif status == 'na abi':
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avail = 'N/A (ABI constraint)'
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avail_style = ' class="na"'
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elif status.startswith('sup '):
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dup = status.split(' ', 1)[1]
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if dup.startswith('P'):
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avail = 'Superseded by <a href="https://wg21.link/%s">%s</a>' % (dup, dup)
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avail_style = ' class="na"'
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else:
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avail = 'Superseded by <a href="#%s">%s</a>' % (dup, dup)
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try:
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_, avail_style, _ = availability(int(dup))
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except:
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print("issue %s marked as sup %s" % (issue, dup), file=sys.stderr)
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avail_style = ' class="none"'
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elif status.startswith('dup '):
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dup = int(status.split(' ', 1)[1])
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avail = 'Duplicate of <a href="#%s">%s</a>' % (dup, dup)
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_, avail_style, _ = availability(dup)
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else:
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assert False, 'unknown status %s for issue %s' % (status, dr.issue)
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return (avail + avail_suffix, avail_style, unresolved_status)
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count = {}
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for dr in drs:
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if dr.status in ('concepts',):
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# This refers to the old ("C++0x") concepts feature, which was not part
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# of any C++ International Standard or Technical Specification.
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continue
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elif dr.status == 'extension':
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row_style = ' class="open"'
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avail = 'Extension'
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avail_style = ''
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elif dr.status in ('open', 'drafting', 'review'):
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row_style = ' class="open"'
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avail, avail_style, unresolved_status = availability(dr.issue)
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if avail == 'Unknown':
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avail = 'Not resolved'
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avail_style = ''
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else:
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assert unresolved_status == dr.status, \
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"Issue %s is marked '%s', which differs from CWG index status '%s'" \
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% (dr.issue, unresolved_status, dr.status)
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else:
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row_style = ''
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avail, avail_style, unresolved_status = availability(dr.issue)
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assert not unresolved_status, \
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"Issue %s is marked '%s', even though it is resolved in CWG index" \
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% (dr.issue, unresolved_status)
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if not avail.startswith('Sup') and not avail.startswith('Dup'):
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count[avail] = count.get(avail, 0) + 1
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out_file.write('''
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<tr%s id="%s">
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<td><a href="https://wg21.link/cwg%s">%s</a></td>
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<td>%s</td>
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<td>%s</td>
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<td%s align="center">%s</td>
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</tr>''' % (row_style, dr.issue, dr.issue, dr.issue, dr.status, dr.title, avail_style, avail))
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for status, num in sorted(count.items()):
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print("%s: %s" % (status, num), file=sys.stderr)
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out_file.write('''\
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</table>
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</div>
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</body>
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</html>
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''')
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out_file.close()
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