reactos/CMake
1
0
Fork 0
mirror of https://github.com/reactos/CMake.git synced 2024-12-14 15:19:39 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
0a0672c01f
CMake/Source/cmDependsFortran.cxx
Brad King 52898fe925 BUG: Fix Fortran dependency parser preprocessor handling crash. 
- Do not crash if a #elseif occurs out of order
  - Recognize preprocessor directives only at the beginning of lines.
  - See issue #6855
2008-04-21 11:15:56 -04:00

1256 lines
39 KiB
C++
Raw Blame History

/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmDependsFortran.h"
#include "cmSystemTools.h"
#include "cmLocalGenerator.h"
#include "cmMakefile.h"
#include "cmGeneratedFileStream.h"
#include "cmDependsFortranParser.h" /* Interface to parser object. */
#include <assert.h>
#include <stack>
// TODO: Test compiler for the case of the mod file. Some always
// use lower case and some always use upper case. I do not know if any
// use the case from the source code.
//----------------------------------------------------------------------------
// Information about a single source file.
class cmDependsFortranSourceInfo
{
public:
// The name of the soruce file.
std::string Source;
// Set of provided and required modules.
std::set<cmStdString> Provides;
std::set<cmStdString> Requires;
// Set of files included in the translation unit.
std::set<cmStdString> Includes;
};
//----------------------------------------------------------------------------
// Parser methods not included in generated interface.
// Get the current buffer processed by the lexer.
YY_BUFFER_STATE cmDependsFortranLexer_GetCurrentBuffer(yyscan_t yyscanner);
// The parser entry point.
int cmDependsFortran_yyparse(yyscan_t);
//----------------------------------------------------------------------------
// Define parser object internal structure.
struct cmDependsFortranFile
{
cmDependsFortranFile(FILE* file, YY_BUFFER_STATE buffer,
const std::string& dir):
File(file), Buffer(buffer), Directory(dir) {}
FILE* File;
YY_BUFFER_STATE Buffer;
std::string Directory;
};
struct cmDependsFortranParser_s
{
cmDependsFortranParser_s(cmDependsFortran* self,
std::set<std::string>& ppDefines,
cmDependsFortranSourceInfo& info);
~cmDependsFortranParser_s();
// Pointer back to the main class.
cmDependsFortran* Self;
// Lexical scanner instance.
yyscan_t Scanner;
// Stack of open files in the translation unit.
std::stack<cmDependsFortranFile> FileStack;
// Buffer for string literals.
std::string TokenString;
// Flag for whether lexer is reading from inside an interface.
bool InInterface;
int OldStartcond;
std::set<std::string> PPDefinitions;
size_t InPPFalseBranch;
std::stack<bool> SkipToEnd;
// Information about the parsed source.
cmDependsFortranSourceInfo& Info;
};
//----------------------------------------------------------------------------
class cmDependsFortranInternals
{
public:
// The set of modules provided by this target.
std::set<cmStdString> TargetProvides;
// Map modules required by this target to locations.
typedef std::map<cmStdString, cmStdString> TargetRequiresMap;
TargetRequiresMap TargetRequires;
// Information about each object file.
typedef std::map<cmStdString, cmDependsFortranSourceInfo> ObjectInfoMap;
ObjectInfoMap ObjectInfo;
cmDependsFortranSourceInfo& CreateObjectInfo(const char* obj,
const char* src)
{
std::map<cmStdString, cmDependsFortranSourceInfo>::iterator i =
this->ObjectInfo.find(obj);
if(i == this->ObjectInfo.end())
{
std::map<cmStdString, cmDependsFortranSourceInfo>::value_type
entry(obj, cmDependsFortranSourceInfo());
i = this->ObjectInfo.insert(entry).first;
i->second.Source = src;
}
return i->second;
}
};
//----------------------------------------------------------------------------
cmDependsFortran::cmDependsFortran():
IncludePath(0), PPDefinitions(0), Internal(0)
{
}
//----------------------------------------------------------------------------
cmDependsFortran
::cmDependsFortran(std::vector<std::string> const& includes,
std::vector<std::string> const& definitions):
IncludePath(&includes),
Internal(new cmDependsFortranInternals)
{
// translate i.e. FOO=BAR to FOO and add it to the list of defined
// preprocessor symbols
for(std::vector<std::string>::const_iterator
it = definitions.begin(); it != definitions.end(); ++it)
{
std::string def = *it;
std::string::size_type assignment = def.find("=");
if(assignment != std::string::npos)
{
def = it->substr(0, assignment);
}
this->PPDefinitions.push_back(def);
}
}
//----------------------------------------------------------------------------
cmDependsFortran::~cmDependsFortran()
{
delete this->Internal;
}
//----------------------------------------------------------------------------
bool cmDependsFortran::WriteDependencies(const char *src, const char *obj,
std::ostream&, std::ostream&)
{
// Make sure this is a scanning instance.
if(!src || src[0] == '\0')
{
cmSystemTools::Error("Cannot scan dependencies without an source file.");
return false;
}
if(!obj || obj[0] == '\0')
{
cmSystemTools::Error("Cannot scan dependencies without an object file.");
return false;
}
if(!this->IncludePath)
{
cmSystemTools::Error("Cannot scan dependencies without an include path.");
return false;
}
// Get the information object for this source.
cmDependsFortranSourceInfo& info =
this->Internal->CreateObjectInfo(obj, src);
// Make a copy of the macros defined via ADD_DEFINITIONS
std::set<std::string> ppDefines(this->PPDefinitions.begin(),
this->PPDefinitions.end());
// Create the parser object. The constructor takes ppMacro and info per
// reference, so we may look into the resulting objects later.
cmDependsFortranParser parser(this, ppDefines, info);
// Push on the starting file.
cmDependsFortranParser_FilePush(&parser, src);
// Parse the translation unit.
if(cmDependsFortran_yyparse(parser.Scanner) != 0)
{
// Failed to parse the file. Report failure to write dependencies.
return false;
}
return true;
}
//----------------------------------------------------------------------------
bool cmDependsFortran::Finalize(std::ostream& makeDepends,
std::ostream& internalDepends)
{
// Prepare the module search process.
this->LocateModules();
// Get the directory in which stamp files will be stored.
const char* stamp_dir = this->TargetDirectory.c_str();
// Get the directory in which module files will be created.
const char* mod_dir;
cmMakefile* mf = this->LocalGenerator->GetMakefile();
if(const char* target_mod_dir =
mf->GetDefinition("CMAKE_Fortran_TARGET_MODULE_DIR"))
{
mod_dir = target_mod_dir;
}
else
{
mod_dir =
this->LocalGenerator->GetMakefile()->GetCurrentOutputDirectory();
}
// Actually write dependencies to the streams.
typedef cmDependsFortranInternals::ObjectInfoMap ObjectInfoMap;
ObjectInfoMap const& objInfo = this->Internal->ObjectInfo;
for(ObjectInfoMap::const_iterator i = objInfo.begin();
i != objInfo.end(); ++i)
{
if(!this->WriteDependenciesReal(i->first.c_str(), i->second,
mod_dir, stamp_dir,
makeDepends, internalDepends))
{
return false;
}
}
// Store the list of modules provided by this target.
std::string fiName = this->TargetDirectory;
fiName += "/fortran.internal";
cmGeneratedFileStream fiStream(fiName.c_str());
fiStream << "# The fortran modules provided by this target.\n";
fiStream << "provides\n";
std::set<cmStdString> const& provides = this->Internal->TargetProvides;
for(std::set<cmStdString>::const_iterator i = provides.begin();
i != provides.end(); ++i)
{
fiStream << " " << *i << "\n";
}
// Create a script to clean the modules.
if(!provides.empty())
{
std::string fcName = this->TargetDirectory;
fcName += "/cmake_clean_Fortran.cmake";
cmGeneratedFileStream fcStream(fcName.c_str());
fcStream << "# Remove fortran modules provided by this target.\n";
fcStream << "FILE(REMOVE";
for(std::set<cmStdString>::const_iterator i = provides.begin();
i != provides.end(); ++i)
{
std::string mod_upper = mod_dir;
mod_upper += "/";
mod_upper += cmSystemTools::UpperCase(*i);
mod_upper += ".mod";
std::string mod_lower = mod_dir;
mod_lower += "/";
mod_lower += *i;
mod_lower += ".mod";
std::string stamp = stamp_dir;
stamp += "/";
stamp += *i;
stamp += ".mod.stamp";
fcStream << "\n";
fcStream << " \"" <<
this->LocalGenerator->Convert(mod_lower.c_str(),
cmLocalGenerator::START_OUTPUT)
<< "\"\n";
fcStream << " \"" <<
this->LocalGenerator->Convert(mod_upper.c_str(),
cmLocalGenerator::START_OUTPUT)
<< "\"\n";
fcStream << " \"" <<
this->LocalGenerator->Convert(stamp.c_str(),
cmLocalGenerator::START_OUTPUT)
<< "\"\n";
}
fcStream << " )\n";
}
return true;
}
//----------------------------------------------------------------------------
void cmDependsFortran::LocateModules()
{
// Collect the set of modules provided and required by all sources.
typedef cmDependsFortranInternals::ObjectInfoMap ObjectInfoMap;
ObjectInfoMap const& objInfo = this->Internal->ObjectInfo;
for(ObjectInfoMap::const_iterator infoI = objInfo.begin();
infoI != objInfo.end(); ++infoI)
{
cmDependsFortranSourceInfo const& info = infoI->second;
for(std::set<cmStdString>::const_iterator i = info.Provides.begin();
i != info.Provides.end(); ++i)
{
// Include this module in the set provided by this target.
this->Internal->TargetProvides.insert(*i);
}
for(std::set<cmStdString>::const_iterator i = info.Requires.begin();
i != info.Requires.end(); ++i)
{
// Include this module in the set required by this target.
this->Internal->TargetRequires[*i] = "";
}
}
// Short-circuit for simple targets.
if(this->Internal->TargetRequires.empty())
{
return;
}
// Match modules provided by this target to those it requires.
this->MatchLocalModules();
// Load information about other targets.
cmMakefile* mf = this->LocalGenerator->GetMakefile();
std::vector<std::string> infoFiles;
if(const char* infoFilesValue =
mf->GetDefinition("CMAKE_TARGET_LINKED_INFO_FILES"))
{
cmSystemTools::ExpandListArgument(infoFilesValue, infoFiles);
}
for(std::vector<std::string>::const_iterator i = infoFiles.begin();
i != infoFiles.end(); ++i)
{
std::string targetDir = cmSystemTools::GetFilenamePath(*i);
std::string fname = targetDir + "/fortran.internal";
std::ifstream fin(fname.c_str());
if(fin)
{
this->MatchRemoteModules(fin, targetDir.c_str());
}
}
}
//----------------------------------------------------------------------------
void cmDependsFortran::MatchLocalModules()
{
const char* stampDir = this->TargetDirectory.c_str();
std::set<cmStdString> const& provides = this->Internal->TargetProvides;
for(std::set<cmStdString>::const_iterator i = provides.begin();
i != provides.end(); ++i)
{
this->ConsiderModule(i->c_str(), stampDir);
}
}
//----------------------------------------------------------------------------
void cmDependsFortran::MatchRemoteModules(std::istream& fin,
const char* stampDir)
{
std::string line;
bool doing_provides = false;
while(cmSystemTools::GetLineFromStream(fin, line))
{
// Ignore comments and empty lines.
if(line.empty() || line[0] == '#' || line[0] == '\r')
{
continue;
}
if(line[0] == ' ')
{
if(doing_provides)
{
this->ConsiderModule(line.c_str()+1, stampDir);
}
}
else if(line == "provides")
{
doing_provides = true;
}
else
{
doing_provides = false;
}
}
}
//----------------------------------------------------------------------------
void cmDependsFortran::ConsiderModule(const char* name,
const char* stampDir)
{
// Locate each required module.
typedef cmDependsFortranInternals::TargetRequiresMap TargetRequiresMap;
TargetRequiresMap::iterator required =
this->Internal->TargetRequires.find(name);
if(required != this->Internal->TargetRequires.end() &&
required->second.empty())
{
// The module is provided by a CMake target. It will have a stamp file.
std::string stampFile = stampDir;
stampFile += "/";
stampFile += name;
stampFile += ".mod.stamp";
required->second = stampFile;
}
}
//----------------------------------------------------------------------------
bool
cmDependsFortran
::WriteDependenciesReal(const char *obj,
cmDependsFortranSourceInfo const& info,
const char* mod_dir, const char* stamp_dir,
std::ostream& makeDepends,
std::ostream& internalDepends)
{
typedef cmDependsFortranInternals::TargetRequiresMap TargetRequiresMap;
// Get the source file for this object.
const char* src = info.Source.c_str();
// Write the include dependencies to the output stream.
internalDepends << obj << std::endl;
internalDepends << " " << src << std::endl;
for(std::set<cmStdString>::const_iterator i = info.Includes.begin();
i != info.Includes.end(); ++i)
{
makeDepends << obj << ": "
<< cmSystemTools::ConvertToOutputPath(i->c_str()).c_str()
<< std::endl;
internalDepends << " " << i->c_str() << std::endl;
}
makeDepends << std::endl;
// Write module requirements to the output stream.
for(std::set<cmStdString>::const_iterator i = info.Requires.begin();
i != info.Requires.end(); ++i)
{
// Require only modules not provided in the same source.
if(std::set<cmStdString>::const_iterator(info.Provides.find(*i)) !=
info.Provides.end())
{
continue;
}
// If the module is provided in this target special handling is
// needed.
if(this->Internal->TargetProvides.find(*i) !=
this->Internal->TargetProvides.end())
{
// The module is provided by a different source in the same
// target. Add the proxy dependency to make sure the other
// source builds first.
std::string proxy = stamp_dir;
proxy += "/";
proxy += *i;
proxy += ".mod.proxy";
proxy = this->LocalGenerator->Convert(proxy.c_str(),
cmLocalGenerator::HOME_OUTPUT,
cmLocalGenerator::MAKEFILE);
// since we require some things add them to our list of requirements
makeDepends << obj << ".requires: " << proxy << std::endl;
}
// The object file should depend on timestamped files for the
// modules it uses.
TargetRequiresMap::const_iterator required =
this->Internal->TargetRequires.find(*i);
if(required == this->Internal->TargetRequires.end()) { abort(); }
if(!required->second.empty())
{
// This module is known. Depend on its timestamp file.
std::string stampFile =
this->LocalGenerator->Convert(required->second.c_str(),
cmLocalGenerator::HOME_OUTPUT,
cmLocalGenerator::SHELL);
makeDepends << obj << ": " << stampFile << "\n";
}
else
{
// This module is not known to CMake. Try to locate it where
// the compiler will and depend on that.
std::string module;
if(this->FindModule(*i, module))
{
module =
this->LocalGenerator->Convert(module.c_str(),
cmLocalGenerator::HOME_OUTPUT,
cmLocalGenerator::SHELL);
makeDepends << obj << ": " << module << "\n";
}
}
}
// Write provided modules to the output stream.
for(std::set<cmStdString>::const_iterator i = info.Provides.begin();
i != info.Provides.end(); ++i)
{
std::string proxy = stamp_dir;
proxy += "/";
proxy += *i;
proxy += ".mod.proxy";
proxy = this->LocalGenerator->Convert(proxy.c_str(),
cmLocalGenerator::HOME_OUTPUT,
cmLocalGenerator::MAKEFILE);
makeDepends << proxy << ": " << obj << ".provides" << std::endl;
}
// If any modules are provided then they must be converted to stamp files.
if(!info.Provides.empty())
{
// Create a target to copy the module after the object file
// changes.
makeDepends << obj << ".provides.build:\n";
for(std::set<cmStdString>::const_iterator i = info.Provides.begin();
i != info.Provides.end(); ++i)
{
// Include this module in the set provided by this target.
this->Internal->TargetProvides.insert(*i);
// Always use lower case for the mod stamp file name. The
// cmake_copy_f90_mod will call back to this class, which will
// try various cases for the real mod file name.
std::string m = cmSystemTools::LowerCase(*i);
std::string modFile = mod_dir;
modFile += "/";
modFile += *i;
modFile =
this->LocalGenerator->Convert(modFile.c_str(),
cmLocalGenerator::HOME_OUTPUT,
cmLocalGenerator::SHELL);
std::string stampFile = stamp_dir;
stampFile += "/";
stampFile += m;
stampFile += ".mod.stamp";
stampFile =
this->LocalGenerator->Convert(stampFile.c_str(),
cmLocalGenerator::HOME_OUTPUT,
cmLocalGenerator::SHELL);
makeDepends << "\t$(CMAKE_COMMAND) -E cmake_copy_f90_mod "
<< modFile << " " << stampFile;
cmMakefile* mf = this->LocalGenerator->GetMakefile();
const char* cid = mf->GetDefinition("CMAKE_Fortran_COMPILER_ID");
if(cid && *cid)
{
makeDepends << " " << cid;
}
makeDepends << "\n";
}
// After copying the modules update the timestamp file so that
// copying will not be done again until the source rebuilds.
makeDepends << "\t$(CMAKE_COMMAND) -E touch " << obj
<< ".provides.build\n";
// Make sure the module timestamp rule is evaluated by the time
// the target finishes building.
std::string driver = this->TargetDirectory;
driver += "/build";
driver = this->LocalGenerator->Convert(driver.c_str(),
cmLocalGenerator::HOME_OUTPUT,
cmLocalGenerator::MAKEFILE);
makeDepends << driver << ": " << obj << ".provides.build\n";
}
return true;
}
//----------------------------------------------------------------------------
bool cmDependsFortran::FindModule(std::string const& name,
std::string& module)
{
// Construct possible names for the module file.
std::string mod_upper = cmSystemTools::UpperCase(name);
std::string mod_lower = name;
mod_upper += ".mod";
mod_lower += ".mod";
// Search the include path for the module.
std::string fullName;
for(std::vector<std::string>::const_iterator i =
this->IncludePath->begin(); i != this->IncludePath->end(); ++i)
{
// Try the lower-case name.
fullName = *i;
fullName += "/";
fullName += mod_lower;
if(cmSystemTools::FileExists(fullName.c_str(), true))
{
module = fullName;
return true;
}
// Try the upper-case name.
fullName = *i;
fullName += "/";
fullName += mod_upper;
if(cmSystemTools::FileExists(fullName.c_str(), true))
{
module = fullName;
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
bool cmDependsFortran::CopyModule(const std::vector<std::string>& args)
{
// Implements
//
// $(CMAKE_COMMAND) -E cmake_copy_f90_mod input.mod output.mod.stamp
// [compiler-id]
//
// Note that the case of the .mod file depends on the compiler. In
// the future this copy could also account for the fact that some
// compilers include a timestamp in the .mod file so it changes even
// when the interface described in the module does not.
std::string mod = args[2];
std::string stamp = args[3];
std::string compilerId;
if(args.size() >= 5)
{
compilerId = args[4];
}
std::string mod_dir = cmSystemTools::GetFilenamePath(mod);
if(!mod_dir.empty()) { mod_dir += "/"; }
std::string mod_upper = mod_dir;
mod_upper += cmSystemTools::UpperCase(cmSystemTools::GetFilenameName(mod));
std::string mod_lower = mod_dir;
mod_lower += cmSystemTools::LowerCase(cmSystemTools::GetFilenameName(mod));
mod += ".mod";
mod_upper += ".mod";
mod_lower += ".mod";
if(cmSystemTools::FileExists(mod_upper.c_str(), true))
{
if(cmDependsFortran::ModulesDiffer(mod_upper.c_str(), stamp.c_str(),
compilerId.c_str()))
{
if(!cmSystemTools::CopyFileAlways(mod_upper.c_str(), stamp.c_str()))
{
std::cerr << "Error copying Fortran module from \""
<< mod_upper.c_str() << "\" to \"" << stamp.c_str()
<< "\".\n";
return false;
}
}
return true;
}
else if(cmSystemTools::FileExists(mod_lower.c_str(), true))
{
if(cmDependsFortran::ModulesDiffer(mod_lower.c_str(), stamp.c_str(),
compilerId.c_str()))
{
if(!cmSystemTools::CopyFileAlways(mod_lower.c_str(), stamp.c_str()))
{
std::cerr << "Error copying Fortran module from \""
<< mod_lower.c_str() << "\" to \"" << stamp.c_str()
<< "\".\n";
return false;
}
}
return true;
}
std::cerr << "Error copying Fortran module \"" << args[2].c_str()
<< "\". Tried \"" << mod_upper.c_str()
<< "\" and \"" << mod_lower.c_str() << "\".\n";
return false;
}
//----------------------------------------------------------------------------
// Helper function to look for a short sequence in a stream. If this
// is later used for longer sequences it should be re-written using an
// efficient string search algorithm such as Boyer-Moore.
static
bool cmDependsFortranStreamContainsSequence(std::ifstream& ifs,
const char* seq, int len)
{
assert(len > 0);
int cur = 0;
while(cur < len)
{
// Get the next character.
int token = ifs.get();
if(!ifs)
{
return false;
}
// Check the character.
if(token == static_cast<int>(seq[cur]))
{
++cur;
}
else
{
// Assume the sequence has no repeating subsequence.
cur = 0;
}
}
// The entire sequence was matched.
return true;
}
//----------------------------------------------------------------------------
// Helper function to compare the remaining content in two streams.
static bool cmDependsFortranStreamsDiffer(std::ifstream& ifs1,
std::ifstream& ifs2)
{
// Compare the remaining content.
for(;;)
{
int ifs1_c = ifs1.get();
int ifs2_c = ifs2.get();
if(!ifs1 && !ifs2)
{
// We have reached the end of both streams simultaneously.
// The streams are identical.
return false;
}
if(!ifs1 || !ifs2 || ifs1_c != ifs2_c)
{
// We have reached the end of one stream before the other or
// found differing content. The streams are different.
break;
}
}
return true;
}
//----------------------------------------------------------------------------
bool cmDependsFortran::ModulesDiffer(const char* modFile,
const char* stampFile,
const char* compilerId)
{
/*
gnu:
A mod file is an ascii file.
<bar.mod>
FORTRAN module created from /path/to/foo.f90 on Sun Dec 30 22:47:58 2007
If you edit this, you'll get what you deserve.
...
</bar.mod>
As you can see the first line contains the date.
intel:
A mod file is a binary file.
However, looking into both generated bar.mod files with a hex editor
shows that they differ only before a sequence linefeed-zero (0x0A 0x00)
which is located some bytes in front of the absoulte path to the source
file.
sun:
A mod file is a binary file. Compiling twice produces identical modules.
others:
TODO ...
*/
/* Compilers which do _not_ produce different mod content when the same
* source is compiled twice
* -SunPro
*/
if(strcmp(compilerId, "SunPro") == 0)
{
return cmSystemTools::FilesDiffer(modFile, stampFile);
}
#if defined(_WIN32) || defined(__CYGWIN__)
std::ifstream finModFile(modFile, std::ios::in | std::ios::binary);
std::ifstream finStampFile(stampFile, std::ios::in | std::ios::binary);
#else
std::ifstream finModFile(modFile, std::ios::in);
std::ifstream finStampFile(stampFile, std::ios::in);
#endif
if(!finModFile || !finStampFile)
{
// At least one of the files does not exist. The modules differ.
return true;
}
/* Compilers which _do_ produce different mod content when the same
* source is compiled twice
* -GNU
* -Intel
*
* Eat the stream content until all recompile only realated changes
* are left bedind.
*/
if (strcmp(compilerId, "GNU") == 0 )
{
const char seq[1] = {'\n'};
const int seqlen = 1;
if(!cmDependsFortranStreamContainsSequence(finModFile, seq, seqlen))
{
// The module is of unexpected format. Assume it is different.
std::cerr << compilerId << " fortran module " << modFile
<< " has unexpected format." << std::endl;
return true;
}
if(!cmDependsFortranStreamContainsSequence(finStampFile, seq, seqlen))
{
// The stamp must differ if the sequence is not contained.
return true;
}
}
else if(strcmp(compilerId, "Intel") == 0)
{
const char seq[2] = {'\n', '\0'};
const int seqlen = 2;
if(!cmDependsFortranStreamContainsSequence(finModFile, seq, seqlen))
{
// The module is of unexpected format. Assume it is different.
std::cerr << compilerId << " fortran module " << modFile
<< " has unexpected format." << std::endl;
return true;
}
if(!cmDependsFortranStreamContainsSequence(finStampFile, seq, seqlen))
{
// The stamp must differ if the sequence is not contained.
return true;
}
}
// Compare the remainng content. If no compiler id matched above,
// including the case none was given, this will compare the whole
// content.
if(!cmDependsFortranStreamsDiffer(finModFile, finStampFile))
{
return false;
}
// The modules are different.
return true;
}
//----------------------------------------------------------------------------
bool cmDependsFortran::FindIncludeFile(const char* dir,
const char* includeName,
std::string& fileName)
{
// If the file is a full path, include it directly.
if(cmSystemTools::FileIsFullPath(includeName))
{
fileName = includeName;
return cmSystemTools::FileExists(fileName.c_str(), true);
}
else
{
// Check for the file in the directory containing the including
// file.
std::string fullName = dir;
fullName += "/";
fullName += includeName;
if(cmSystemTools::FileExists(fullName.c_str(), true))
{
fileName = fullName;
return true;
}
// Search the include path for the file.
for(std::vector<std::string>::const_iterator i =
this->IncludePath->begin(); i != this->IncludePath->end(); ++i)
{
fullName = *i;
fullName += "/";
fullName += includeName;
if(cmSystemTools::FileExists(fullName.c_str(), true))
{
fileName = fullName;
return true;
}
}
}
return false;
}
//----------------------------------------------------------------------------
cmDependsFortranParser_s
::cmDependsFortranParser_s(cmDependsFortran* self,
std::set<std::string>& ppDefines,
cmDependsFortranSourceInfo& info):
Self(self), PPDefinitions(ppDefines), Info(info)
{
this->InInterface = 0;
this->InPPFalseBranch = 0;
// Initialize the lexical scanner.
cmDependsFortran_yylex_init(&this->Scanner);
cmDependsFortran_yyset_extra(this, this->Scanner);
// Create a dummy buffer that is never read but is the fallback
// buffer when the last file is popped off the stack.
YY_BUFFER_STATE buffer =
cmDependsFortran_yy_create_buffer(0, 4, this->Scanner);
cmDependsFortran_yy_switch_to_buffer(buffer, this->Scanner);
}
//----------------------------------------------------------------------------
cmDependsFortranParser_s::~cmDependsFortranParser_s()
{
cmDependsFortran_yylex_destroy(this->Scanner);
}
//----------------------------------------------------------------------------
bool cmDependsFortranParser_FilePush(cmDependsFortranParser* parser,
const char* fname)
{
// Open the new file and push it onto the stack. Save the old
// buffer with it on the stack.
if(FILE* file = fopen(fname, "rb"))
{
YY_BUFFER_STATE current =
cmDependsFortranLexer_GetCurrentBuffer(parser->Scanner);
std::string dir = cmSystemTools::GetParentDirectory(fname);
cmDependsFortranFile f(file, current, dir);
YY_BUFFER_STATE buffer =
cmDependsFortran_yy_create_buffer(0, 16384, parser->Scanner);
cmDependsFortran_yy_switch_to_buffer(buffer, parser->Scanner);
parser->FileStack.push(f);
return 1;
}
else
{
return 0;
}
}
//----------------------------------------------------------------------------
bool cmDependsFortranParser_FilePop(cmDependsFortranParser* parser)
{
// Pop one file off the stack and close it. Switch the lexer back
// to the next one on the stack.
if(parser->FileStack.empty())
{
return 0;
}
else
{
cmDependsFortranFile f = parser->FileStack.top(); parser->FileStack.pop();
fclose(f.File);
YY_BUFFER_STATE current =
cmDependsFortranLexer_GetCurrentBuffer(parser->Scanner);
cmDependsFortran_yy_delete_buffer(current, parser->Scanner);
cmDependsFortran_yy_switch_to_buffer(f.Buffer, parser->Scanner);
return 1;
}
}
//----------------------------------------------------------------------------
int cmDependsFortranParser_Input(cmDependsFortranParser* parser,
char* buffer, size_t bufferSize)
{
// Read from the file on top of the stack. If the stack is empty,
// the end of the translation unit has been reached.
if(!parser->FileStack.empty())
{
FILE* file = parser->FileStack.top().File;
return (int)fread(buffer, 1, bufferSize, file);
}
return 0;
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_StringStart(cmDependsFortranParser* parser)
{
parser->TokenString = "";
}
//----------------------------------------------------------------------------
const char* cmDependsFortranParser_StringEnd(cmDependsFortranParser* parser)
{
return parser->TokenString.c_str();
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_StringAppend(cmDependsFortranParser* parser,
char c)
{
parser->TokenString += c;
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_SetInInterface(cmDependsFortranParser* parser,
bool in)
{
if(parser->InPPFalseBranch)
{
return;
}
parser->InInterface = in;
}
//----------------------------------------------------------------------------
bool cmDependsFortranParser_GetInInterface(cmDependsFortranParser* parser)
{
return parser->InInterface;
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_SetOldStartcond(cmDependsFortranParser* parser,
int arg)
{
parser->OldStartcond = arg;
}
//----------------------------------------------------------------------------
int cmDependsFortranParser_GetOldStartcond(cmDependsFortranParser* parser)
{
return parser->OldStartcond;
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_Error(cmDependsFortranParser*, const char*)
{
// If there is a parser error just ignore it. The source will not
// compile and the user will edit it. Then dependencies will have
// to be regenerated anyway.
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleUse(cmDependsFortranParser* parser,
const char* name)
{
if(!parser->InPPFalseBranch)
{
parser->Info.Requires.insert(cmSystemTools::LowerCase(name) );
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleInclude(cmDependsFortranParser* parser,
const char* name)
{
if(parser->InPPFalseBranch)
{
return;
}
// If processing an include statement there must be an open file.
assert(!parser->FileStack.empty());
// Get the directory containing the source in which the include
// statement appears. This is always the first search location for
// Fortran include files.
std::string dir = parser->FileStack.top().Directory;
// Find the included file. If it cannot be found just ignore the
// problem because either the source will not compile or the user
// does not care about depending on this included source.
std::string fullName;
if(parser->Self->FindIncludeFile(dir.c_str(), name, fullName))
{
// Found the included file. Save it in the set of included files.
parser->Info.Includes.insert(fullName);
// Parse it immediately to translate the source inline.
cmDependsFortranParser_FilePush(parser, fullName.c_str());
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleModule(cmDependsFortranParser* parser,
const char* name)
{
if(!parser->InPPFalseBranch && !parser->InInterface)
{
parser->Info.Provides.insert(cmSystemTools::LowerCase(name));
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleDefine(cmDependsFortranParser* parser,
const char* macro)
{
if(!parser->InPPFalseBranch)
{
parser->PPDefinitions.insert(macro);
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleUndef(cmDependsFortranParser* parser,
const char* macro)
{
if(!parser->InPPFalseBranch)
{
std::set<std::string>::iterator match;
match = parser->PPDefinitions.find(macro);
if(match != parser->PPDefinitions.end())
{
parser->PPDefinitions.erase(match);
}
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleIfdef(cmDependsFortranParser* parser,
const char* macro)
{
// A new PP branch has been opened
parser->SkipToEnd.push(false);
if (parser->InPPFalseBranch)
{
parser->InPPFalseBranch++;
}
else if(parser->PPDefinitions.find(macro) == parser->PPDefinitions.end())
{
parser->InPPFalseBranch=1;
}
else
{
parser->SkipToEnd.top() = true;
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleIfndef(cmDependsFortranParser* parser,
const char* macro)
{
// A new PP branch has been opened
parser->SkipToEnd.push(false);
if (parser->InPPFalseBranch)
{
parser->InPPFalseBranch++;
}
else if(parser->PPDefinitions.find(macro) != parser->PPDefinitions.end())
{
parser->InPPFalseBranch = 1;
}
else
{
// ignore other branches
parser->SkipToEnd.top() = true;
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleIf(cmDependsFortranParser* parser)
{
/* Note: The current parser is _not_ able to get statements like
* #if 0
* #if 1
* #if MYSMBOL
* #if defined(MYSYMBOL)
* #if defined(MYSYMBOL) && ...
* right. The same for #elif. Thus in
* #if SYMBOL_1
* ..
* #elif SYMBOL_2
* ...
* ...
* #elif SYMBOL_N
* ..
* #else
* ..
* #endif
* _all_ N+1 branches are considered. If you got something like this
* #if defined(MYSYMBOL)
* #if !defined(MYSYMBOL)
* use
* #ifdef MYSYMBOL
* #ifndef MYSYMBOL
* instead.
*/
// A new PP branch has been opened
// Never skip! See note above.
parser->SkipToEnd.push(false);
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleElif(cmDependsFortranParser* parser)
{
/* Note: There are parser limitations. See the note at
* cmDependsFortranParser_RuleIf(..)
*/
// Allways taken unless an #ifdef or #ifndef-branch has been taken
// already. If the second condition isn't meet already
// (parser->InPPFalseBranch == 0) correct it.
if(!parser->SkipToEnd.empty() &&
parser->SkipToEnd.top() && !parser->InPPFalseBranch)
{
parser->InPPFalseBranch = 1;
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleElse(cmDependsFortranParser* parser)
{
// if the parent branch is false do nothing!
if(parser->InPPFalseBranch > 1)
{
return;
}
// parser->InPPFalseBranch is either 0 or 1. We change it denpending on
// parser->SkipToEnd.top()
if(!parser->SkipToEnd.empty() &&
parser->SkipToEnd.top())
{
parser->InPPFalseBranch = 1;
}
else
{
parser->InPPFalseBranch = 0;
}
}
//----------------------------------------------------------------------------
void cmDependsFortranParser_RuleEndif(cmDependsFortranParser* parser)
{
if(!parser->SkipToEnd.empty())
{
parser->SkipToEnd.pop();
}
// #endif doesn't know if there was a "#else" in before, so it
// always decreases InPPFalseBranch
if(parser->InPPFalseBranch)
{
parser->InPPFalseBranch--;
}
}
Reference in New Issue View Git Blame Copy Permalink