641 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			641 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/env python
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#
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# Copyright 2008, Google Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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#     * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#     * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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#     * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""Converts compiler's errors in code using Google Mock to plain English."""
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__author__ = 'wan@google.com (Zhanyong Wan)'
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import re
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import sys
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_VERSION = '1.0.3'
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_EMAIL = 'googlemock@googlegroups.com'
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_COMMON_GMOCK_SYMBOLS = [
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    # Matchers
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    '_',
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    'A',
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    'AddressSatisfies',
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    'AllOf',
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    'An',
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    'AnyOf',
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    'ContainerEq',
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    'Contains',
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    'ContainsRegex',
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    'DoubleEq',
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    'ElementsAre',
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    'ElementsAreArray',
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    'EndsWith',
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    'Eq',
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    'Field',
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    'FloatEq',
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    'Ge',
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    'Gt',
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    'HasSubstr',
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    'IsInitializedProto',
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    'Le',
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    'Lt',
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    'MatcherCast',
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    'Matches',
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    'MatchesRegex',
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    'NanSensitiveDoubleEq',
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    'NanSensitiveFloatEq',
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    'Ne',
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    'Not',
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    'NotNull',
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    'Pointee',
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    'Property',
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    'Ref',
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    'ResultOf',
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    'SafeMatcherCast',
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    'StartsWith',
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    'StrCaseEq',
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    'StrCaseNe',
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    'StrEq',
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    'StrNe',
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    'Truly',
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    'TypedEq',
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    'Value',
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    # Actions
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    'Assign',
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    'ByRef',
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    'DeleteArg',
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    'DoAll',
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    'DoDefault',
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    'IgnoreResult',
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    'Invoke',
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    'InvokeArgument',
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    'InvokeWithoutArgs',
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    'Return',
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    'ReturnNew',
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    'ReturnNull',
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    'ReturnRef',
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    'SaveArg',
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    'SetArgReferee',
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    'SetArgPointee',
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    'SetArgumentPointee',
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    'SetArrayArgument',
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    'SetErrnoAndReturn',
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    'Throw',
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    'WithArg',
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    'WithArgs',
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    'WithoutArgs',
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    # Cardinalities
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    'AnyNumber',
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    'AtLeast',
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    'AtMost',
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    'Between',
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    'Exactly',
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    # Sequences
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    'InSequence',
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    'Sequence',
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    # Misc
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    'DefaultValue',
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    'Mock',
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    ]
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# Regex for matching source file path and line number in the compiler's errors.
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_GCC_FILE_LINE_RE = r'(?P<file>.*):(?P<line>\d+):(\d+:)?\s+'
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_CLANG_FILE_LINE_RE = r'(?P<file>.*):(?P<line>\d+):(?P<column>\d+):\s+'
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_CLANG_NON_GMOCK_FILE_LINE_RE = (
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    r'(?P<file>.*[/\\^](?!gmock-)[^/\\]+):(?P<line>\d+):(?P<column>\d+):\s+')
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def _FindAllMatches(regex, s):
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  """Generates all matches of regex in string s."""
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  r = re.compile(regex)
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  return r.finditer(s)
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def _GenericDiagnoser(short_name, long_name, diagnoses, msg):
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  """Diagnoses the given disease by pattern matching.
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  Can provide different diagnoses for different patterns.
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  Args:
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    short_name: Short name of the disease.
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    long_name:  Long name of the disease.
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    diagnoses:  A list of pairs (regex, pattern for formatting the diagnosis
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                for matching regex).
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    msg:        Compiler's error messages.
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  Yields:
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    Tuples of the form
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      (short name of disease, long name of disease, diagnosis).
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  """
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  for regex, diagnosis in diagnoses:
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    if re.search(regex, msg):
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      diagnosis = '%(file)s:%(line)s:' + diagnosis
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      for m in _FindAllMatches(regex, msg):
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        yield (short_name, long_name, diagnosis % m.groupdict())
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def _NeedToReturnReferenceDiagnoser(msg):
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  """Diagnoses the NRR disease, given the error messages by the compiler."""
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  gcc_regex = (r'In member function \'testing::internal::ReturnAction<R>.*\n'
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               + _GCC_FILE_LINE_RE + r'instantiated from here\n'
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               r'.*gmock-actions\.h.*error: creating array with negative size')
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  clang_regex = (r'error:.*array.*negative.*\r?\n'
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                 r'(.*\n)*?' +
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                 _CLANG_NON_GMOCK_FILE_LINE_RE +
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                 r'note: in instantiation of function template specialization '
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                 r'\'testing::internal::ReturnAction<(?P<type>.*)>'
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                 r'::operator Action<.*>\' requested here')
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  clang11_re = (r'use_ReturnRef_instead_of_Return_to_return_a_reference.*'
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                r'(.*\n)*?' + _CLANG_NON_GMOCK_FILE_LINE_RE)
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  diagnosis = """
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You are using a Return() action in a function that returns a reference to
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%(type)s.  Please use ReturnRef() instead."""
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  return _GenericDiagnoser('NRR', 'Need to Return Reference',
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                           [(clang_regex, diagnosis),
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                            (clang11_re, diagnosis % {'type': 'a type'}),
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                            (gcc_regex, diagnosis % {'type': 'a type'})],
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                           msg)
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def _NeedToReturnSomethingDiagnoser(msg):
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  """Diagnoses the NRS disease, given the error messages by the compiler."""
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  gcc_regex = (_GCC_FILE_LINE_RE + r'(instantiated from here\n.'
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               r'*gmock.*actions\.h.*error: void value not ignored)'
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               r'|(error: control reaches end of non-void function)')
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  clang_regex1 = (_CLANG_FILE_LINE_RE +
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                  r'error: cannot initialize return object '
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                  r'of type \'Result\' \(aka \'(?P<return_type>.*)\'\) '
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                  r'with an rvalue of type \'void\'')
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  clang_regex2 = (_CLANG_FILE_LINE_RE +
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                  r'error: cannot initialize return object '
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                  r'of type \'(?P<return_type>.*)\' '
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                  r'with an rvalue of type \'void\'')
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  diagnosis = """
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You are using an action that returns void, but it needs to return
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%(return_type)s.  Please tell it *what* to return.  Perhaps you can use
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the pattern DoAll(some_action, Return(some_value))?"""
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  return _GenericDiagnoser(
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      'NRS',
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      'Need to Return Something',
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      [(gcc_regex, diagnosis % {'return_type': '*something*'}),
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       (clang_regex1, diagnosis),
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       (clang_regex2, diagnosis)],
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      msg)
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def _NeedToReturnNothingDiagnoser(msg):
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  """Diagnoses the NRN disease, given the error messages by the compiler."""
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  gcc_regex = (_GCC_FILE_LINE_RE + r'instantiated from here\n'
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               r'.*gmock-actions\.h.*error: instantiation of '
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               r'\'testing::internal::ReturnAction<R>::Impl<F>::value_\' '
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               r'as type \'void\'')
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  clang_regex1 = (r'error: field has incomplete type '
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                  r'\'Result\' \(aka \'void\'\)(\r)?\n'
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                  r'(.*\n)*?' +
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                  _CLANG_NON_GMOCK_FILE_LINE_RE + r'note: in instantiation '
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                  r'of function template specialization '
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                  r'\'testing::internal::ReturnAction<(?P<return_type>.*)>'
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                  r'::operator Action<void \(.*\)>\' requested here')
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  clang_regex2 = (r'error: field has incomplete type '
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                  r'\'Result\' \(aka \'void\'\)(\r)?\n'
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                  r'(.*\n)*?' +
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                  _CLANG_NON_GMOCK_FILE_LINE_RE + r'note: in instantiation '
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                  r'of function template specialization '
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                  r'\'testing::internal::DoBothAction<.*>'
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                  r'::operator Action<(?P<return_type>.*) \(.*\)>\' '
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                  r'requested here')
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  diagnosis = """
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You are using an action that returns %(return_type)s, but it needs to return
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void.  Please use a void-returning action instead.
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All actions but the last in DoAll(...) must return void.  Perhaps you need
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to re-arrange the order of actions in a DoAll(), if you are using one?"""
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  return _GenericDiagnoser(
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      'NRN',
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      'Need to Return Nothing',
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      [(gcc_regex, diagnosis % {'return_type': '*something*'}),
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       (clang_regex1, diagnosis),
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       (clang_regex2, diagnosis)],
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      msg)
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def _IncompleteByReferenceArgumentDiagnoser(msg):
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  """Diagnoses the IBRA disease, given the error messages by the compiler."""
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  gcc_regex = (_GCC_FILE_LINE_RE + r'instantiated from here\n'
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               r'.*gtest-printers\.h.*error: invalid application of '
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               r'\'sizeof\' to incomplete type \'(?P<type>.*)\'')
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  clang_regex = (r'.*gtest-printers\.h.*error: invalid application of '
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                 r'\'sizeof\' to an incomplete type '
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                 r'\'(?P<type>.*)( const)?\'\r?\n'
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                 r'(.*\n)*?' +
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                 _CLANG_NON_GMOCK_FILE_LINE_RE +
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                 r'note: in instantiation of member function '
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                 r'\'testing::internal2::TypeWithoutFormatter<.*>::'
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                 r'PrintValue\' requested here')
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  diagnosis = """
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In order to mock this function, Google Mock needs to see the definition
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of type "%(type)s" - declaration alone is not enough.  Either #include
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the header that defines it, or change the argument to be passed
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by pointer."""
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  return _GenericDiagnoser('IBRA', 'Incomplete By-Reference Argument Type',
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                           [(gcc_regex, diagnosis),
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                            (clang_regex, diagnosis)],
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                           msg)
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def _OverloadedFunctionMatcherDiagnoser(msg):
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  """Diagnoses the OFM disease, given the error messages by the compiler."""
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  gcc_regex = (_GCC_FILE_LINE_RE + r'error: no matching function for '
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               r'call to \'Truly\(<unresolved overloaded function type>\)')
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  clang_regex = (_CLANG_FILE_LINE_RE + r'error: no matching function for '
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                 r'call to \'Truly')
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  diagnosis = """
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The argument you gave to Truly() is an overloaded function.  Please tell
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your compiler which overloaded version you want to use.
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For example, if you want to use the version whose signature is
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  bool Foo(int n);
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you should write
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  Truly(static_cast<bool (*)(int n)>(Foo))"""
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  return _GenericDiagnoser('OFM', 'Overloaded Function Matcher',
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                           [(gcc_regex, diagnosis),
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                            (clang_regex, diagnosis)],
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                           msg)
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def _OverloadedFunctionActionDiagnoser(msg):
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  """Diagnoses the OFA disease, given the error messages by the compiler."""
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  gcc_regex = (_GCC_FILE_LINE_RE + r'error: no matching function for call to '
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               r'\'Invoke\(<unresolved overloaded function type>')
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  clang_regex = (_CLANG_FILE_LINE_RE + r'error: no matching '
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                 r'function for call to \'Invoke\'\r?\n'
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                 r'(.*\n)*?'
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                 r'.*\bgmock-generated-actions\.h:\d+:\d+:\s+'
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                 r'note: candidate template ignored:\s+'
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                 r'couldn\'t infer template argument \'FunctionImpl\'')
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  diagnosis = """
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Function you are passing to Invoke is overloaded.  Please tell your compiler
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which overloaded version you want to use.
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For example, if you want to use the version whose signature is
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  bool MyFunction(int n, double x);
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you should write something like
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  Invoke(static_cast<bool (*)(int n, double x)>(MyFunction))"""
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  return _GenericDiagnoser('OFA', 'Overloaded Function Action',
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                           [(gcc_regex, diagnosis),
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                            (clang_regex, diagnosis)],
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                           msg)
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def _OverloadedMethodActionDiagnoser(msg):
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  """Diagnoses the OMA disease, given the error messages by the compiler."""
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  gcc_regex = (_GCC_FILE_LINE_RE + r'error: no matching function for '
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               r'call to \'Invoke\(.+, <unresolved overloaded function '
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               r'type>\)')
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  clang_regex = (_CLANG_FILE_LINE_RE + r'error: no matching function '
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                 r'for call to \'Invoke\'\r?\n'
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                 r'(.*\n)*?'
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                 r'.*\bgmock-generated-actions\.h:\d+:\d+: '
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                 r'note: candidate function template not viable: '
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                 r'requires .*, but 2 (arguments )?were provided')
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  diagnosis = """
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The second argument you gave to Invoke() is an overloaded method.  Please
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tell your compiler which overloaded version you want to use.
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For example, if you want to use the version whose signature is
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  class Foo {
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    ...
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    bool Bar(int n, double x);
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  };
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you should write something like
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  Invoke(foo, static_cast<bool (Foo::*)(int n, double x)>(&Foo::Bar))"""
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  return _GenericDiagnoser('OMA', 'Overloaded Method Action',
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                           [(gcc_regex, diagnosis),
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                            (clang_regex, diagnosis)],
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                           msg)
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def _MockObjectPointerDiagnoser(msg):
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  """Diagnoses the MOP disease, given the error messages by the compiler."""
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  gcc_regex = (_GCC_FILE_LINE_RE + r'error: request for member '
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               r'\'gmock_(?P<method>.+)\' in \'(?P<mock_object>.+)\', '
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               r'which is of non-class type \'(.*::)*(?P<class_name>.+)\*\'')
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  clang_regex = (_CLANG_FILE_LINE_RE + r'error: member reference type '
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                 r'\'(?P<class_name>.*?) *\' is a pointer; '
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                 r'(did you mean|maybe you meant) to use \'->\'\?')
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  diagnosis = """
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The first argument to ON_CALL() and EXPECT_CALL() must be a mock *object*,
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not a *pointer* to it.  Please write '*(%(mock_object)s)' instead of
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'%(mock_object)s' as your first argument.
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For example, given the mock class:
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  class %(class_name)s : public ... {
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    ...
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    MOCK_METHOD0(%(method)s, ...);
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  };
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and the following mock instance:
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  %(class_name)s* mock_ptr = ...
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you should use the EXPECT_CALL like this:
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  EXPECT_CALL(*mock_ptr, %(method)s(...));"""
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  return _GenericDiagnoser(
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      'MOP',
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      'Mock Object Pointer',
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      [(gcc_regex, diagnosis),
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       (clang_regex, diagnosis % {'mock_object': 'mock_object',
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                                  'method': 'method',
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                                  'class_name': '%(class_name)s'})],
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       msg)
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def _NeedToUseSymbolDiagnoser(msg):
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  """Diagnoses the NUS disease, given the error messages by the compiler."""
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  gcc_regex = (_GCC_FILE_LINE_RE + r'error: \'(?P<symbol>.+)\' '
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               r'(was not declared in this scope|has not been declared)')
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  clang_regex = (_CLANG_FILE_LINE_RE +
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                 r'error: (use of undeclared identifier|unknown type name|'
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                 r'no template named) \'(?P<symbol>[^\']+)\'')
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  diagnosis = """
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'%(symbol)s' is defined by Google Mock in the testing namespace.
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Did you forget to write
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  using testing::%(symbol)s;
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?"""
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  for m in (list(_FindAllMatches(gcc_regex, msg)) +
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            list(_FindAllMatches(clang_regex, msg))):
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    symbol = m.groupdict()['symbol']
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    if symbol in _COMMON_GMOCK_SYMBOLS:
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      yield ('NUS', 'Need to Use Symbol', diagnosis % m.groupdict())
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def _NeedToUseReturnNullDiagnoser(msg):
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  """Diagnoses the NRNULL disease, given the error messages by the compiler."""
 | 
						|
 | 
						|
  gcc_regex = ('instantiated from \'testing::internal::ReturnAction<R>'
 | 
						|
               '::operator testing::Action<Func>\(\) const.*\n' +
 | 
						|
               _GCC_FILE_LINE_RE + r'instantiated from here\n'
 | 
						|
               r'.*error: no matching function for call to \'ImplicitCast_\('
 | 
						|
               r'(:?long )?int&\)')
 | 
						|
  clang_regex = (r'\bgmock-actions.h:.* error: no matching function for '
 | 
						|
                 r'call to \'ImplicitCast_\'\r?\n'
 | 
						|
                 r'(.*\n)*?' +
 | 
						|
                 _CLANG_NON_GMOCK_FILE_LINE_RE + r'note: in instantiation '
 | 
						|
                 r'of function template specialization '
 | 
						|
                 r'\'testing::internal::ReturnAction<(int|long)>::operator '
 | 
						|
                 r'Action<(?P<type>.*)\(\)>\' requested here')
 | 
						|
  diagnosis = """
 | 
						|
You are probably calling Return(NULL) and the compiler isn't sure how to turn
 | 
						|
NULL into %(type)s. Use ReturnNull() instead.
 | 
						|
Note: the line number may be off; please fix all instances of Return(NULL)."""
 | 
						|
  return _GenericDiagnoser(
 | 
						|
      'NRNULL', 'Need to use ReturnNull',
 | 
						|
      [(clang_regex, diagnosis),
 | 
						|
       (gcc_regex, diagnosis % {'type': 'the right type'})],
 | 
						|
      msg)
 | 
						|
 | 
						|
 | 
						|
def _TypeInTemplatedBaseDiagnoser(msg):
 | 
						|
  """Diagnoses the TTB disease, given the error messages by the compiler."""
 | 
						|
 | 
						|
  # This version works when the type is used as the mock function's return
 | 
						|
  # type.
 | 
						|
  gcc_4_3_1_regex_type_in_retval = (
 | 
						|
      r'In member function \'int .*\n' + _GCC_FILE_LINE_RE +
 | 
						|
      r'error: a function call cannot appear in a constant-expression')
 | 
						|
  gcc_4_4_0_regex_type_in_retval = (
 | 
						|
      r'error: a function call cannot appear in a constant-expression'
 | 
						|
      + _GCC_FILE_LINE_RE + r'error: template argument 1 is invalid\n')
 | 
						|
  # This version works when the type is used as the mock function's sole
 | 
						|
  # parameter type.
 | 
						|
  gcc_regex_type_of_sole_param = (
 | 
						|
      _GCC_FILE_LINE_RE +
 | 
						|
      r'error: \'(?P<type>.+)\' was not declared in this scope\n'
 | 
						|
      r'.*error: template argument 1 is invalid\n')
 | 
						|
  # This version works when the type is used as a parameter of a mock
 | 
						|
  # function that has multiple parameters.
 | 
						|
  gcc_regex_type_of_a_param = (
 | 
						|
      r'error: expected `;\' before \'::\' token\n'
 | 
						|
      + _GCC_FILE_LINE_RE +
 | 
						|
      r'error: \'(?P<type>.+)\' was not declared in this scope\n'
 | 
						|
      r'.*error: template argument 1 is invalid\n'
 | 
						|
      r'.*error: \'.+\' was not declared in this scope')
 | 
						|
  clang_regex_type_of_retval_or_sole_param = (
 | 
						|
      _CLANG_FILE_LINE_RE +
 | 
						|
      r'error: use of undeclared identifier \'(?P<type>.*)\'\n'
 | 
						|
      r'(.*\n)*?'
 | 
						|
      r'(?P=file):(?P=line):\d+: error: '
 | 
						|
      r'non-friend class member \'Result\' cannot have a qualified name'
 | 
						|
      )
 | 
						|
  clang_regex_type_of_a_param = (
 | 
						|
      _CLANG_FILE_LINE_RE +
 | 
						|
      r'error: C\+\+ requires a type specifier for all declarations\n'
 | 
						|
      r'(.*\n)*?'
 | 
						|
      r'(?P=file):(?P=line):(?P=column): error: '
 | 
						|
      r'C\+\+ requires a type specifier for all declarations'
 | 
						|
      )
 | 
						|
  clang_regex_unknown_type = (
 | 
						|
      _CLANG_FILE_LINE_RE +
 | 
						|
      r'error: unknown type name \'(?P<type>[^\']+)\''
 | 
						|
      )
 | 
						|
 | 
						|
  diagnosis = """
 | 
						|
In a mock class template, types or typedefs defined in the base class
 | 
						|
template are *not* automatically visible.  This is how C++ works.  Before
 | 
						|
you can use a type or typedef named %(type)s defined in base class Base<T>, you
 | 
						|
need to make it visible.  One way to do it is:
 | 
						|
 | 
						|
  typedef typename Base<T>::%(type)s %(type)s;"""
 | 
						|
 | 
						|
  for diag in _GenericDiagnoser(
 | 
						|
      'TTB', 'Type in Template Base',
 | 
						|
      [(gcc_4_3_1_regex_type_in_retval, diagnosis % {'type': 'Foo'}),
 | 
						|
       (gcc_4_4_0_regex_type_in_retval, diagnosis % {'type': 'Foo'}),
 | 
						|
       (gcc_regex_type_of_sole_param, diagnosis),
 | 
						|
       (gcc_regex_type_of_a_param, diagnosis),
 | 
						|
       (clang_regex_type_of_retval_or_sole_param, diagnosis),
 | 
						|
       (clang_regex_type_of_a_param, diagnosis % {'type': 'Foo'})],
 | 
						|
      msg):
 | 
						|
    yield diag
 | 
						|
  # Avoid overlap with the NUS pattern.
 | 
						|
  for m in _FindAllMatches(clang_regex_unknown_type, msg):
 | 
						|
    type_ = m.groupdict()['type']
 | 
						|
    if type_ not in _COMMON_GMOCK_SYMBOLS:
 | 
						|
      yield ('TTB', 'Type in Template Base', diagnosis % m.groupdict())
 | 
						|
 | 
						|
 | 
						|
def _WrongMockMethodMacroDiagnoser(msg):
 | 
						|
  """Diagnoses the WMM disease, given the error messages by the compiler."""
 | 
						|
 | 
						|
  gcc_regex = (_GCC_FILE_LINE_RE +
 | 
						|
               r'.*this_method_does_not_take_(?P<wrong_args>\d+)_argument.*\n'
 | 
						|
               r'.*\n'
 | 
						|
               r'.*candidates are.*FunctionMocker<[^>]+A(?P<args>\d+)\)>')
 | 
						|
  clang_regex = (_CLANG_NON_GMOCK_FILE_LINE_RE +
 | 
						|
                 r'error:.*array.*negative.*r?\n'
 | 
						|
                 r'(.*\n)*?'
 | 
						|
                 r'(?P=file):(?P=line):(?P=column): error: too few arguments '
 | 
						|
                 r'to function call, expected (?P<args>\d+), '
 | 
						|
                 r'have (?P<wrong_args>\d+)')
 | 
						|
  clang11_re = (_CLANG_NON_GMOCK_FILE_LINE_RE +
 | 
						|
                r'.*this_method_does_not_take_'
 | 
						|
                r'(?P<wrong_args>\d+)_argument.*')
 | 
						|
  diagnosis = """
 | 
						|
You are using MOCK_METHOD%(wrong_args)s to define a mock method that has
 | 
						|
%(args)s arguments. Use MOCK_METHOD%(args)s (or MOCK_CONST_METHOD%(args)s,
 | 
						|
MOCK_METHOD%(args)s_T, MOCK_CONST_METHOD%(args)s_T as appropriate) instead."""
 | 
						|
  return _GenericDiagnoser('WMM', 'Wrong MOCK_METHODn Macro',
 | 
						|
                           [(gcc_regex, diagnosis),
 | 
						|
                            (clang11_re, diagnosis % {'wrong_args': 'm',
 | 
						|
                                                      'args': 'n'}),
 | 
						|
                            (clang_regex, diagnosis)],
 | 
						|
                           msg)
 | 
						|
 | 
						|
 | 
						|
def _WrongParenPositionDiagnoser(msg):
 | 
						|
  """Diagnoses the WPP disease, given the error messages by the compiler."""
 | 
						|
 | 
						|
  gcc_regex = (_GCC_FILE_LINE_RE +
 | 
						|
               r'error:.*testing::internal::MockSpec<.* has no member named \''
 | 
						|
               r'(?P<method>\w+)\'')
 | 
						|
  clang_regex = (_CLANG_NON_GMOCK_FILE_LINE_RE +
 | 
						|
                 r'error: no member named \'(?P<method>\w+)\' in '
 | 
						|
                 r'\'testing::internal::MockSpec<.*>\'')
 | 
						|
  diagnosis = """
 | 
						|
The closing parenthesis of ON_CALL or EXPECT_CALL should be *before*
 | 
						|
".%(method)s".  For example, you should write:
 | 
						|
  EXPECT_CALL(my_mock, Foo(_)).%(method)s(...);
 | 
						|
instead of:
 | 
						|
  EXPECT_CALL(my_mock, Foo(_).%(method)s(...));"""
 | 
						|
  return _GenericDiagnoser('WPP', 'Wrong Parenthesis Position',
 | 
						|
                           [(gcc_regex, diagnosis),
 | 
						|
                            (clang_regex, diagnosis)],
 | 
						|
                           msg)
 | 
						|
 | 
						|
 | 
						|
_DIAGNOSERS = [
 | 
						|
    _IncompleteByReferenceArgumentDiagnoser,
 | 
						|
    _MockObjectPointerDiagnoser,
 | 
						|
    _NeedToReturnNothingDiagnoser,
 | 
						|
    _NeedToReturnReferenceDiagnoser,
 | 
						|
    _NeedToReturnSomethingDiagnoser,
 | 
						|
    _NeedToUseReturnNullDiagnoser,
 | 
						|
    _NeedToUseSymbolDiagnoser,
 | 
						|
    _OverloadedFunctionActionDiagnoser,
 | 
						|
    _OverloadedFunctionMatcherDiagnoser,
 | 
						|
    _OverloadedMethodActionDiagnoser,
 | 
						|
    _TypeInTemplatedBaseDiagnoser,
 | 
						|
    _WrongMockMethodMacroDiagnoser,
 | 
						|
    _WrongParenPositionDiagnoser,
 | 
						|
    ]
 | 
						|
 | 
						|
 | 
						|
def Diagnose(msg):
 | 
						|
  """Generates all possible diagnoses given the compiler error message."""
 | 
						|
 | 
						|
  msg = re.sub(r'\x1b\[[^m]*m', '', msg)  # Strips all color formatting.
 | 
						|
  # Assuming the string is using the UTF-8 encoding, replaces the left and
 | 
						|
  # the right single quote characters with apostrophes.
 | 
						|
  msg = re.sub(r'(\xe2\x80\x98|\xe2\x80\x99)', "'", msg)
 | 
						|
 | 
						|
  diagnoses = []
 | 
						|
  for diagnoser in _DIAGNOSERS:
 | 
						|
    for diag in diagnoser(msg):
 | 
						|
      diagnosis = '[%s - %s]\n%s' % diag
 | 
						|
      if not diagnosis in diagnoses:
 | 
						|
        diagnoses.append(diagnosis)
 | 
						|
  return diagnoses
 | 
						|
 | 
						|
 | 
						|
def main():
 | 
						|
  print ('Google Mock Doctor v%s - '
 | 
						|
         'diagnoses problems in code using Google Mock.' % _VERSION)
 | 
						|
 | 
						|
  if sys.stdin.isatty():
 | 
						|
    print ('Please copy and paste the compiler errors here.  Press c-D when '
 | 
						|
           'you are done:')
 | 
						|
  else:
 | 
						|
    print 'Waiting for compiler errors on stdin . . .'
 | 
						|
 | 
						|
  msg = sys.stdin.read().strip()
 | 
						|
  diagnoses = Diagnose(msg)
 | 
						|
  count = len(diagnoses)
 | 
						|
  if not count:
 | 
						|
    print ("""
 | 
						|
Your compiler complained:
 | 
						|
8<------------------------------------------------------------
 | 
						|
%s
 | 
						|
------------------------------------------------------------>8
 | 
						|
 | 
						|
Uh-oh, I'm not smart enough to figure out what the problem is. :-(
 | 
						|
However...
 | 
						|
If you send your source code and the compiler's error messages to
 | 
						|
%s, you can be helped and I can get smarter --
 | 
						|
win-win for us!""" % (msg, _EMAIL))
 | 
						|
  else:
 | 
						|
    print '------------------------------------------------------------'
 | 
						|
    print 'Your code appears to have the following',
 | 
						|
    if count > 1:
 | 
						|
      print '%s diseases:' % (count,)
 | 
						|
    else:
 | 
						|
      print 'disease:'
 | 
						|
    i = 0
 | 
						|
    for d in diagnoses:
 | 
						|
      i += 1
 | 
						|
      if count > 1:
 | 
						|
        print '\n#%s:' % (i,)
 | 
						|
      print d
 | 
						|
    print ("""
 | 
						|
How did I do?  If you think I'm wrong or unhelpful, please send your
 | 
						|
source code and the compiler's error messages to %s.
 | 
						|
Then you can be helped and I can get smarter -- I promise I won't be upset!""" %
 | 
						|
           _EMAIL)
 | 
						|
 | 
						|
 | 
						|
if __name__ == '__main__':
 | 
						|
  main()
 |