/*========================================================================= 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 "cmWhileCommand.h" #include "cmIfCommand.h" bool cmWhileFunctionBlocker:: IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf, cmExecutionStatus &inStatus) { // Prevent recusion and don't let this blocker block its own // commands. if (this->Executing) { return false; } // at end of for each execute recorded commands if (!cmSystemTools::Strucmp(lff.Name.c_str(),"while")) { // record the number of while commands past this one this->Depth++; } else if (!cmSystemTools::Strucmp(lff.Name.c_str(),"endwhile")) { // if this is the endwhile for this while loop then execute if (!this->Depth) { char* errorString = 0; std::vector<std::string> expandedArguments; mf.ExpandArguments(this->Args, expandedArguments); bool isTrue = cmIfCommand::IsTrue(expandedArguments,&errorString,&mf); this->Executing = true; while (isTrue) { // Invoke all the functions that were collected in the block. for(unsigned int c = 0; c < this->Functions.size(); ++c) { cmExecutionStatus status; mf.ExecuteCommand(this->Functions[c],status); if (status.GetReturnInvoked()) { inStatus.SetReturnInvoked(true); mf.RemoveFunctionBlocker(lff); return true; } if (status.GetBreakInvoked()) { mf.RemoveFunctionBlocker(lff); return true; } } expandedArguments.clear(); mf.ExpandArguments(this->Args, expandedArguments); isTrue = cmIfCommand::IsTrue(expandedArguments,&errorString,&mf); } mf.RemoveFunctionBlocker(lff); return true; } else { // decrement for each nested while that ends this->Depth--; } } // record the command this->Functions.push_back(lff); // always return true return true; } bool cmWhileFunctionBlocker:: ShouldRemove(const cmListFileFunction& lff, cmMakefile& mf) { if(!cmSystemTools::Strucmp(lff.Name.c_str(),"endwhile")) { if (lff.Arguments == this->Args || cmSystemTools::IsOn (mf.GetPropertyOrDefinition("CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS"))) { return true; } } return false; } void cmWhileFunctionBlocker:: ScopeEnded(cmMakefile &mf) { cmSystemTools::Error( "The end of a CMakeLists file was reached with a WHILE statement that " "was not closed properly. Within the directory: ", mf.GetCurrentDirectory()); } bool cmWhileCommand ::InvokeInitialPass(const std::vector<cmListFileArgument>& args, cmExecutionStatus &) { if(args.size() < 1) { this->SetError("called with incorrect number of arguments"); return false; } // create a function blocker cmWhileFunctionBlocker *f = new cmWhileFunctionBlocker(); f->Args = args; this->Makefile->AddFunctionBlocker(f); return true; }