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119 lines
3.4 KiB
119 lines
3.4 KiB
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile: cmWhileCommand.cxx,v $
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Language: C++
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Date: $Date: 2009-02-04 16:44:17 $
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Version: $Revision: 1.12.2.2 $
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "cmWhileCommand.h"
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#include "cmIfCommand.h"
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bool cmWhileFunctionBlocker::
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IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf,
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cmExecutionStatus &inStatus)
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{
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// at end of for each execute recorded commands
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if (!cmSystemTools::Strucmp(lff.Name.c_str(),"while"))
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{
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// record the number of while commands past this one
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this->Depth++;
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}
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else if (!cmSystemTools::Strucmp(lff.Name.c_str(),"endwhile"))
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{
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// if this is the endwhile for this while loop then execute
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if (!this->Depth)
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{
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// Remove the function blocker for this scope or bail.
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cmsys::auto_ptr<cmFunctionBlocker>
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fb(mf.RemoveFunctionBlocker(this, lff));
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if(!fb.get()) { return false; }
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std::string errorString;
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std::vector<std::string> expandedArguments;
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mf.ExpandArguments(this->Args, expandedArguments);
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bool isTrue =
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cmIfCommand::IsTrue(expandedArguments,errorString,&mf);
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while (isTrue)
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{
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// Invoke all the functions that were collected in the block.
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for(unsigned int c = 0; c < this->Functions.size(); ++c)
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{
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cmExecutionStatus status;
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mf.ExecuteCommand(this->Functions[c],status);
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if (status.GetReturnInvoked())
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{
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inStatus.SetReturnInvoked(true);
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return true;
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}
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if (status.GetBreakInvoked())
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{
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return true;
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}
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}
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expandedArguments.clear();
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mf.ExpandArguments(this->Args, expandedArguments);
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isTrue =
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cmIfCommand::IsTrue(expandedArguments,errorString,&mf);
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}
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return true;
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}
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else
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{
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// decrement for each nested while that ends
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this->Depth--;
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}
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}
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// record the command
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this->Functions.push_back(lff);
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// always return true
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return true;
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}
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bool cmWhileFunctionBlocker::
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ShouldRemove(const cmListFileFunction& lff, cmMakefile& )
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{
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if(!cmSystemTools::Strucmp(lff.Name.c_str(),"endwhile"))
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{
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// if the endwhile has arguments, then make sure
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// they match the arguments of the matching while
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if (lff.Arguments.size() == 0 ||
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lff.Arguments == this->Args)
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{
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return true;
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}
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}
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return false;
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}
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bool cmWhileCommand
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::InvokeInitialPass(const std::vector<cmListFileArgument>& args,
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cmExecutionStatus &)
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{
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if(args.size() < 1)
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{
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this->SetError("called with incorrect number of arguments");
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return false;
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}
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// create a function blocker
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cmWhileFunctionBlocker *f = new cmWhileFunctionBlocker();
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f->Args = args;
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this->Makefile->AddFunctionBlocker(f);
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return true;
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}
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