diff options
Diffstat (limited to 'Source/cmDependsC.cxx')
-rw-r--r-- | Source/cmDependsC.cxx | 243 |
1 files changed, 123 insertions, 120 deletions
diff --git a/Source/cmDependsC.cxx b/Source/cmDependsC.cxx index 44841a9..43b7b8a 100644 --- a/Source/cmDependsC.cxx +++ b/Source/cmDependsC.cxx @@ -98,176 +98,179 @@ cmDependsC::~cmDependsC() } //---------------------------------------------------------------------------- -bool cmDependsC::WriteDependencies(const char *src, const char *obj, - std::ostream& makeDepends, std::ostream& internalDepends) +bool cmDependsC::WriteDependencies(const std::set<std::string>& sources, + const std::string& obj, + std::ostream& makeDepends, + std::ostream& internalDepends) { // Make sure this is a scanning instance. - if(!src || src[0] == '\0') + if(sources.empty() || sources.begin()->empty()) { cmSystemTools::Error("Cannot scan dependencies without a source file."); return false; } - if(!obj || obj[0] == '\0') + if(obj.empty()) { cmSystemTools::Error("Cannot scan dependencies without an object file."); return false; } + std::set<cmStdString> dependencies; + bool haveDeps = false; + if (this->ValidDeps != 0) { std::map<std::string, DependencyVector>::const_iterator tmpIt = this->ValidDeps->find(obj); if (tmpIt!= this->ValidDeps->end()) { - // Write the dependencies to the output stream. Makefile rules - // written by the original local generator for this directory - // convert the dependencies to paths relative to the home output - // directory. We must do the same here. - internalDepends << obj << std::endl; for(DependencyVector::const_iterator i=tmpIt->second.begin(); i != tmpIt->second.end(); ++i) { - makeDepends << obj << ": " << - this->LocalGenerator->Convert(i->c_str(), - cmLocalGenerator::HOME_OUTPUT, - cmLocalGenerator::MAKEFILE) - << std::endl; - internalDepends << " " << i->c_str() << std::endl; + dependencies.insert(*i); } - makeDepends << std::endl; - return true; + haveDeps = true; } } - // Walk the dependency graph starting with the source file. - bool first = true; - UnscannedEntry root; - root.FileName = src; - this->Unscanned.push(root); - this->Encountered.clear(); - this->Encountered.insert(src); - std::set<cmStdString> dependencies; - std::set<cmStdString> scanned; + if (!haveDeps) + { + // Walk the dependency graph starting with the source file. + int srcFiles = (int)sources.size(); + this->Encountered.clear(); + + for(std::set<std::string>::const_iterator srcIt = sources.begin(); + srcIt != sources.end(); ++srcIt) + { + UnscannedEntry root; + root.FileName = *srcIt; + this->Unscanned.push(root); + this->Encountered.insert(*srcIt); + } - // Use reserve to allocate enough memory for tempPathStr - // so that during the loops no memory is allocated or freed - std::string tempPathStr; - tempPathStr.reserve(4*1024); + std::set<cmStdString> scanned; - while(!this->Unscanned.empty()) - { - // Get the next file to scan. - UnscannedEntry current = this->Unscanned.front(); - this->Unscanned.pop(); + // Use reserve to allocate enough memory for tempPathStr + // so that during the loops no memory is allocated or freed + std::string tempPathStr; + tempPathStr.reserve(4*1024); - // If not a full path, find the file in the include path. - std::string fullName; - if(first || cmSystemTools::FileIsFullPath(current.FileName.c_str())) + while(!this->Unscanned.empty()) { - if(cmSystemTools::FileExists(current.FileName.c_str(), true)) + // Get the next file to scan. + UnscannedEntry current = this->Unscanned.front(); + this->Unscanned.pop(); + + // If not a full path, find the file in the include path. + std::string fullName; + if((srcFiles>0) + || cmSystemTools::FileIsFullPath(current.FileName.c_str())) { - fullName = current.FileName; + if(cmSystemTools::FileExists(current.FileName.c_str(), true)) + { + fullName = current.FileName; + } } - } - else if(!current.QuotedLocation.empty() && - cmSystemTools::FileExists(current.QuotedLocation.c_str(), true)) - { - // The include statement producing this entry was a double-quote - // include and the included file is present in the directory of - // the source containing the include statement. - fullName = current.QuotedLocation; - } - else - { - std::map<cmStdString, cmStdString>::iterator - headerLocationIt=this->HeaderLocationCache.find(current.FileName); - if (headerLocationIt!=this->HeaderLocationCache.end()) + else if(!current.QuotedLocation.empty() && + cmSystemTools::FileExists(current.QuotedLocation.c_str(), true)) { - fullName=headerLocationIt->second; + // The include statement producing this entry was a double-quote + // include and the included file is present in the directory of + // the source containing the include statement. + fullName = current.QuotedLocation; } - else for(std::vector<std::string>::const_iterator i = - this->IncludePath.begin(); i != this->IncludePath.end(); ++i) + else { - // Construct the name of the file as if it were in the current - // include directory. Avoid using a leading "./". - - tempPathStr = ""; - if((*i) == ".") + std::map<cmStdString, cmStdString>::iterator + headerLocationIt=this->HeaderLocationCache.find(current.FileName); + if (headerLocationIt!=this->HeaderLocationCache.end()) { - tempPathStr += current.FileName; + fullName=headerLocationIt->second; } - else + else for(std::vector<std::string>::const_iterator i = + this->IncludePath.begin(); i != this->IncludePath.end(); ++i) { - tempPathStr += *i; - tempPathStr+="/"; - tempPathStr+=current.FileName; - } + // Construct the name of the file as if it were in the current + // include directory. Avoid using a leading "./". - // Look for the file in this location. - if(cmSystemTools::FileExists(tempPathStr.c_str(), true)) - { - fullName = tempPathStr; - HeaderLocationCache[current.FileName]=fullName; - break; + tempPathStr = ""; + if((*i) == ".") + { + tempPathStr += current.FileName; + } + else + { + tempPathStr += *i; + tempPathStr+="/"; + tempPathStr+=current.FileName; + } + + // Look for the file in this location. + if(cmSystemTools::FileExists(tempPathStr.c_str(), true)) + { + fullName = tempPathStr; + HeaderLocationCache[current.FileName]=fullName; + break; + } } } - } - - // Complain if the file cannot be found and matches the complain - // regex. - if(fullName.empty() && - this->IncludeRegexComplain.find(current.FileName.c_str())) - { - cmSystemTools::Error("Cannot find file \"", - current.FileName.c_str(), "\"."); - return false; - } - // Scan the file if it was found and has not been scanned already. - if(!fullName.empty() && (scanned.find(fullName) == scanned.end())) - { - // Record scanned files. - scanned.insert(fullName); + // Complain if the file cannot be found and matches the complain + // regex. + if(fullName.empty() && + this->IncludeRegexComplain.find(current.FileName.c_str())) + { + cmSystemTools::Error("Cannot find file \"", + current.FileName.c_str(), "\"."); + return false; + } - // Check whether this file is already in the cache - std::map<cmStdString, cmIncludeLines*>::iterator fileIt= - this->FileCache.find(fullName); - if (fileIt!=this->FileCache.end()) + // Scan the file if it was found and has not been scanned already. + if(!fullName.empty() && (scanned.find(fullName) == scanned.end())) { - fileIt->second->Used=true; - dependencies.insert(fullName); - for (std::vector<UnscannedEntry>::const_iterator incIt= - fileIt->second->UnscannedEntries.begin(); - incIt!=fileIt->second->UnscannedEntries.end(); ++incIt) + // Record scanned files. + scanned.insert(fullName); + + // Check whether this file is already in the cache + std::map<cmStdString, cmIncludeLines*>::iterator fileIt= + this->FileCache.find(fullName); + if (fileIt!=this->FileCache.end()) { - if (this->Encountered.find(incIt->FileName) == - this->Encountered.end()) + fileIt->second->Used=true; + dependencies.insert(fullName); + for (std::vector<UnscannedEntry>::const_iterator incIt= + fileIt->second->UnscannedEntries.begin(); + incIt!=fileIt->second->UnscannedEntries.end(); ++incIt) { - this->Encountered.insert(incIt->FileName); - this->Unscanned.push(*incIt); + if (this->Encountered.find(incIt->FileName) == + this->Encountered.end()) + { + this->Encountered.insert(incIt->FileName); + this->Unscanned.push(*incIt); + } } } - } - else - { - - // Try to scan the file. Just leave it out if we cannot find - // it. - std::ifstream fin(fullName.c_str()); - if(fin) + else { - // Add this file as a dependency. - dependencies.insert(fullName); - // Scan this file for new dependencies. Pass the directory - // containing the file to handle double-quote includes. - std::string dir = cmSystemTools::GetFilenamePath(fullName); - this->Scan(fin, dir.c_str(), fullName); + // Try to scan the file. Just leave it out if we cannot find + // it. + std::ifstream fin(fullName.c_str()); + if(fin) + { + // Add this file as a dependency. + dependencies.insert(fullName); + + // Scan this file for new dependencies. Pass the directory + // containing the file to handle double-quote includes. + std::string dir = cmSystemTools::GetFilenamePath(fullName); + this->Scan(fin, dir.c_str(), fullName); + } } } - } - first = false; + srcFiles--; + } } // Write the dependencies to the output stream. Makefile rules @@ -275,7 +278,7 @@ bool cmDependsC::WriteDependencies(const char *src, const char *obj, // convert the dependencies to paths relative to the home output // directory. We must do the same here. internalDepends << obj << std::endl; - for(std::set<cmStdString>::iterator i=dependencies.begin(); + for(std::set<cmStdString>::const_iterator i=dependencies.begin(); i != dependencies.end(); ++i) { makeDepends << obj << ": " << |