diff options
Diffstat (limited to 'support')
| -rw-r--r-- | support/Makefile | 10 | ||||
| -rw-r--r-- | support/tst-glibcpp.py | 217 |
2 files changed, 225 insertions, 2 deletions
diff --git a/support/Makefile b/support/Makefile index 9b50eac..551d029 100644 --- a/support/Makefile +++ b/support/Makefile @@ -274,12 +274,12 @@ $(objpfx)test-run-command : $(libsupport) $(common-objpfx)elf/static-stubs.o tests = \ README-testing \ tst-support-namespace \ + tst-support-open-dev-null-range \ + tst-support-process_state \ tst-support_blob_repeat \ tst-support_capture_subprocess \ tst-support_descriptors \ tst-support_format_dns_packet \ - tst-support-open-dev-null-range \ - tst-support-process_state \ tst-support_quote_blob \ tst-support_quote_blob_wide \ tst-support_quote_string \ @@ -304,6 +304,12 @@ $(objpfx)tst-support_record_failure-2.out: tst-support_record_failure-2.sh \ $(evaluate-test) endif +tests-special += $(objpfx)tst-glibcpp.out + +$(objpfx)tst-glibcpp.out: tst-glibcpp.py $(..)scripts/glibcpp.py + PYTHONPATH=$(..)scripts $(PYTHON) tst-glibcpp.py > $@ 2>&1; \ + $(evaluate-test) + $(objpfx)tst-support_format_dns_packet: $(common-objpfx)resolv/libresolv.so tst-support_capture_subprocess-ARGS = -- $(host-test-program-cmd) diff --git a/support/tst-glibcpp.py b/support/tst-glibcpp.py new file mode 100644 index 0000000..a2db191 --- /dev/null +++ b/support/tst-glibcpp.py @@ -0,0 +1,217 @@ +#! /usr/bin/python3 +# Tests for scripts/glibcpp.py +# Copyright (C) 2022 Free Software Foundation, Inc. +# This file is part of the GNU C Library. +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, see +# <https://www.gnu.org/licenses/>. + +import inspect +import sys + +import glibcpp + +# Error counter. +errors = 0 + +class TokenizerErrors: + """Used as the error reporter during tokenization.""" + + def __init__(self): + self.errors = [] + + def error(self, token, message): + self.errors.append((token, message)) + +def check_macro_definitions(source, expected): + reporter = TokenizerErrors() + tokens = glibcpp.tokenize_c(source, reporter) + + actual = [] + for md in glibcpp.macro_definitions(tokens): + if md.function: + md_name = '{}({})'.format(md.name, ','.join(md.args_lowered)) + else: + md_name = md.name + actual.append((md_name, md.body_lowered)) + + if actual != expected or reporter.errors: + global errors + errors += 1 + # Obtain python source line information. + frame = inspect.stack(2)[1] + print('{}:{}: error: macro definition mismatch, actual definitions:' + .format(frame[1], frame[2])) + for md in actual: + print('note: {} {!r}'.format(md[0], md[1])) + + if reporter.errors: + for err in reporter.errors: + print('note: tokenizer error: {}: {}'.format( + err[0].line, err[1])) + +def check_macro_eval(source, expected, expected_errors=''): + reporter = TokenizerErrors() + tokens = list(glibcpp.tokenize_c(source, reporter)) + + if reporter.errors: + # Obtain python source line information. + frame = inspect.stack(2)[1] + for err in reporter.errors: + print('{}:{}: tokenizer error: {}: {}'.format( + frame[1], frame[2], err[0].line, err[1])) + return + + class EvalReporter: + """Used as the error reporter during evaluation.""" + + def __init__(self): + self.lines = [] + + def error(self, line, message): + self.lines.append('{}: error: {}\n'.format(line, message)) + + def note(self, line, message): + self.lines.append('{}: note: {}\n'.format(line, message)) + + reporter = EvalReporter() + actual = glibcpp.macro_eval(glibcpp.macro_definitions(tokens), reporter) + actual_errors = ''.join(reporter.lines) + if actual != expected or actual_errors != expected_errors: + global errors + errors += 1 + # Obtain python source line information. + frame = inspect.stack(2)[1] + print('{}:{}: error: macro evaluation mismatch, actual results:' + .format(frame[1], frame[2])) + for k, v in actual.items(): + print(' {}: {!r}'.format(k, v)) + for msg in reporter.lines: + sys.stdout.write(' | ' + msg) + +# Individual test cases follow. + +check_macro_definitions('', []) +check_macro_definitions('int main()\n{\n{\n', []) +check_macro_definitions(""" +#define A 1 +#define B 2 /* ignored */ +#define C 3 // also ignored +#define D \ + 4 +#define STRING "string" +#define FUNCLIKE(a, b) (a + b) +#define FUNCLIKE2(a, b) (a + \ + b) +""", [('A', ['1']), + ('B', ['2']), + ('C', ['3']), + ('D', ['4']), + ('STRING', ['"string"']), + ('FUNCLIKE(a,b)', list('(a+b)')), + ('FUNCLIKE2(a,b)', list('(a+b)')), + ]) +check_macro_definitions('#define MACRO', [('MACRO', [])]) +check_macro_definitions('#define MACRO\n', [('MACRO', [])]) +check_macro_definitions('#define MACRO()', [('MACRO()', [])]) +check_macro_definitions('#define MACRO()\n', [('MACRO()', [])]) + +check_macro_eval('#define A 1', {'A': 1}) +check_macro_eval('#define A (1)', {'A': 1}) +check_macro_eval('#define A (1 + 1)', {'A': 2}) +check_macro_eval('#define A (1U << 31)', {'A': 1 << 31}) +check_macro_eval('''\ +#define A (B + 1) +#define B 10 +#define F(x) ignored +#define C "not ignored" +''', { + 'A': 11, + 'B': 10, + 'C': '"not ignored"', +}) + +# Checking for evaluation errors. +check_macro_eval('''\ +#define A 1 +#define A 2 +''', { + 'A': 1, +}, '''\ +2: error: macro A redefined +1: note: location of previous definition +''') + +check_macro_eval('''\ +#define A A +#define B 1 +''', { + 'A': None, + 'B': 1, +}, '''\ +1: error: macro definition A refers to itself +''') + +check_macro_eval('''\ +#define A B +#define B A +''', { + 'A': None, + 'B': None, +}, '''\ +1: error: macro definition A refers to itself +2: note: evaluated from B +''') + +check_macro_eval('''\ +#define A B +#define B C +#define C A +''', { + 'A': None, + 'B': None, + 'C': None, +}, '''\ +1: error: macro definition A refers to itself +3: note: evaluated from C +2: note: evaluated from B +''') + +check_macro_eval('''\ +#define A 1 + +''', { + 'A': None, +}, '''\ +1: error: uninterpretable macro token sequence: 1 + +''') + +check_macro_eval('''\ +#define A 3*5 +''', { + 'A': None, +}, '''\ +1: error: uninterpretable macro token sequence: 3 * 5 +''') + +check_macro_eval('''\ +#define A 3 + 5 +''', { + 'A': 8, +}, '''\ +1: error: missing parentheses around + expression +1: note: in definition of macro A +''') + +if errors: + sys.exit(1) |