152 lines
4.3 KiB
C++
152 lines
4.3 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmWhileCommand.h"
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#include "cmConditionEvaluator.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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cmMakefile::LoopBlockPop loopBlockPop(&mf);
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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<cmExpandedCommandArgument> expandedArguments;
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mf.ExpandArguments(this->Args, expandedArguments);
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cmake::MessageType messageType;
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cmConditionEvaluator conditionEvaluator(mf);
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bool isTrue = conditionEvaluator.IsTrue(
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expandedArguments, errorString, messageType);
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while (isTrue)
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{
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if (errorString.size())
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{
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std::string err = "had incorrect arguments: ";
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unsigned int i;
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for(i =0; i < this->Args.size(); ++i)
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{
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err += (this->Args[i].Delim?"\"":"");
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err += this->Args[i].Value;
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err += (this->Args[i].Delim?"\"":"");
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err += " ";
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}
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err += "(";
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err += errorString;
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err += ").";
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mf.IssueMessage(messageType, err);
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if (messageType == cmake::FATAL_ERROR)
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{
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cmSystemTools::SetFatalErrorOccured();
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return true;
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}
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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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if (status.GetContinueInvoked())
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{
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break;
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}
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if(cmSystemTools::GetFatalErrorOccured() )
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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 = conditionEvaluator.IsTrue(
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expandedArguments, errorString, messageType);
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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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this->Makefile->PushLoopBlock();
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return true;
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}
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