328 lines
9.8 KiB
C++
328 lines
9.8 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 "cmMacroCommand.h"
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#include "cmake.h"
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// define the class for macro commands
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class cmMacroHelperCommand : public cmCommand
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{
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public:
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cmMacroHelperCommand() {}
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///! clean up any memory allocated by the macro
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~cmMacroHelperCommand() {}
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/**
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* This is used to avoid including this command
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* in documentation. This is mainly used by
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* cmMacroHelperCommand and cmFunctionHelperCommand
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* which cannot provide appropriate documentation.
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*/
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virtual bool ShouldAppearInDocumentation() const
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{
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return false;
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}
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/**
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* This is a virtual constructor for the command.
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*/
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virtual cmCommand* Clone()
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{
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cmMacroHelperCommand *newC = new cmMacroHelperCommand;
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// we must copy when we clone
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newC->Args = this->Args;
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newC->Functions = this->Functions;
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newC->FilePath = this->FilePath;
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newC->Policies = this->Policies;
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return newC;
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}
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/**
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* This determines if the command is invoked when in script mode.
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*/
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virtual bool IsScriptable() const { return true; }
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/**
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* This is called when the command is first encountered in
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* the CMakeLists.txt file.
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*/
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virtual bool InvokeInitialPass(const std::vector<cmListFileArgument>& args,
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cmExecutionStatus &);
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virtual bool InitialPass(std::vector<std::string> const&,
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cmExecutionStatus &) { return false; }
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/**
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* The name of the command as specified in CMakeList.txt.
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*/
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virtual std::string GetName() const { return this->Args[0]; }
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cmTypeMacro(cmMacroHelperCommand, cmCommand);
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std::vector<std::string> Args;
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std::vector<cmListFileFunction> Functions;
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cmPolicies::PolicyMap Policies;
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std::string FilePath;
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};
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bool cmMacroHelperCommand::InvokeInitialPass
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(const std::vector<cmListFileArgument>& args,
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cmExecutionStatus &inStatus)
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{
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// Expand the argument list to the macro.
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std::vector<std::string> expandedArgs;
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this->Makefile->ExpandArguments(args, expandedArgs);
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std::string tmps;
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cmListFileArgument arg;
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std::string variable;
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// make sure the number of arguments passed is at least the number
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// required by the signature
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if (expandedArgs.size() < this->Args.size() - 1)
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{
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std::string errorMsg =
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"Macro invoked with incorrect arguments for macro named: ";
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errorMsg += this->Args[0];
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this->SetError(errorMsg);
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return false;
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}
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// Enforce matching logical blocks inside the macro.
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cmMakefile::LexicalPushPop lexScope(this->Makefile);
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// Push a weak policy scope which restores the policies recorded at
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// macro creation.
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cmMakefile::PolicyPushPop polScope(this->Makefile, true, this->Policies);
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// set the value of argc
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std::ostringstream argcDefStream;
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argcDefStream << expandedArgs.size();
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std::string argcDef = argcDefStream.str();
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// declare varuiables for ARGV ARGN but do not compute until needed
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std::string argvDef;
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std::string argnDef;
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bool argnDefInitialized = false;
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bool argvDefInitialized = false;
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if(!this->Functions.empty())
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{
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this->FilePath = this->Functions[0].FilePath;
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}
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// Invoke all the functions that were collected in the block.
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cmListFileFunction newLFF;
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// for each function
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for(unsigned int c = 0; c < this->Functions.size(); ++c)
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{
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// Replace the formal arguments and then invoke the command.
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newLFF.Arguments.clear();
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newLFF.Arguments.reserve(this->Functions[c].Arguments.size());
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newLFF.Name = this->Functions[c].Name;
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newLFF.FilePath = this->Functions[c].FilePath;
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newLFF.Line = this->Functions[c].Line;
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// for each argument of the current function
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for (std::vector<cmListFileArgument>::iterator k =
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this->Functions[c].Arguments.begin();
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k != this->Functions[c].Arguments.end(); ++k)
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{
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// Set the FilePath on the arguments to match the function since it is
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// not stored and the original values may be freed
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k->FilePath = this->FilePath.c_str();
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if(k->Delim == cmListFileArgument::Bracket)
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{
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arg.Value = k->Value;
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}
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else
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{
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tmps = k->Value;
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// replace formal arguments
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for (unsigned int j = 1; j < this->Args.size(); ++j)
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{
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variable = "${";
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variable += this->Args[j];
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variable += "}";
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cmSystemTools::ReplaceString(tmps, variable.c_str(),
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expandedArgs[j-1].c_str());
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}
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// replace argc
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cmSystemTools::ReplaceString(tmps, "${ARGC}",argcDef.c_str());
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// repleace ARGN
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if (tmps.find("${ARGN}") != std::string::npos)
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{
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if (!argnDefInitialized)
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{
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if (expandedArgs.size() > this->Args.size() - 1)
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{
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if (!argnDef.empty() && !expandedArgs.empty())
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{
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argnDef += ";";
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}
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std::vector<std::string>::const_iterator eit
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= expandedArgs.begin() + (this->Args.size() - 1);
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argnDef += cmJoin(cmRange(eit, expandedArgs.end()), ";");
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}
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argnDefInitialized = true;
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}
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cmSystemTools::ReplaceString(tmps, "${ARGN}", argnDef.c_str());
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}
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// if the current argument of the current function has ${ARGV in it
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// then try replacing ARGV values
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if (tmps.find("${ARGV") != std::string::npos)
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{
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char argvName[60];
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// repleace ARGV, compute it only once
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if (!argvDefInitialized)
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{
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if (!argvDef.empty() && !expandedArgs.empty())
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{
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argvDef += ";";
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}
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argvDef += cmJoin(expandedArgs, ";");
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argvDefInitialized = true;
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}
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cmSystemTools::ReplaceString(tmps, "${ARGV}", argvDef.c_str());
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// also replace the ARGV1 ARGV2 ... etc
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for (unsigned int t = 0; t < expandedArgs.size(); ++t)
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{
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sprintf(argvName,"${ARGV%i}",t);
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cmSystemTools::ReplaceString(tmps, argvName,
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expandedArgs[t].c_str());
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}
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}
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arg.Value = tmps;
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}
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arg.Delim = k->Delim;
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arg.FilePath = k->FilePath;
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arg.Line = k->Line;
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newLFF.Arguments.push_back(arg);
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}
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cmExecutionStatus status;
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if(!this->Makefile->ExecuteCommand(newLFF, status) ||
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status.GetNestedError())
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{
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// The error message should have already included the call stack
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// so we do not need to report an error here.
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lexScope.Quiet();
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polScope.Quiet();
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inStatus.SetNestedError(true);
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return false;
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}
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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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inStatus.SetBreakInvoked(true);
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return true;
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}
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}
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return true;
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}
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bool cmMacroFunctionBlocker::
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IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf,
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cmExecutionStatus &)
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{
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// record commands until we hit the ENDMACRO
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// at the ENDMACRO call we shift gears and start looking for invocations
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if(!cmSystemTools::Strucmp(lff.Name.c_str(),"macro"))
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{
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this->Depth++;
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}
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else if(!cmSystemTools::Strucmp(lff.Name.c_str(),"endmacro"))
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{
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// if this is the endmacro for this macro then execute
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if (!this->Depth)
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{
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std::string name = this->Args[0];
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name += "(";
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if (!this->Args.empty())
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{
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name += " ";
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name += cmJoin(this->Args, " ");
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}
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name += " )";
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mf.AddMacro(this->Args[0].c_str(), name.c_str());
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// create a new command and add it to cmake
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cmMacroHelperCommand *f = new cmMacroHelperCommand();
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f->Args = this->Args;
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f->Functions = this->Functions;
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mf.RecordPolicies(f->Policies);
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std::string newName = "_" + this->Args[0];
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mf.GetCMakeInstance()->RenameCommand(this->Args[0],
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newName);
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mf.AddCommand(f);
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// remove the function blocker now that the macro is defined
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mf.RemoveFunctionBlocker(this, lff);
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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 macro that ends
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this->Depth--;
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}
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}
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// if it wasn't an endmacro and we are not executing then we must be
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// recording
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this->Functions.push_back(lff);
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return true;
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}
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bool cmMacroFunctionBlocker::
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ShouldRemove(const cmListFileFunction& lff, cmMakefile &mf)
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{
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if(!cmSystemTools::Strucmp(lff.Name.c_str(),"endmacro"))
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{
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std::vector<std::string> expandedArguments;
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mf.ExpandArguments(lff.Arguments, expandedArguments);
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// if the endmacro has arguments make sure they
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// match the arguments of the macro
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if ((expandedArguments.empty() ||
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(expandedArguments[0] == this->Args[0])))
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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 cmMacroCommand::InitialPass(std::vector<std::string> const& 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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cmMacroFunctionBlocker *f = new cmMacroFunctionBlocker();
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f->Args.insert(f->Args.end(), args.begin(), args.end());
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this->Makefile->AddFunctionBlocker(f);
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return true;
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}
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