CMake/Source/cmMacroCommand.cxx

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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
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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.
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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 "cmMacroCommand.h"
bool cmMacroFunctionBlocker::
IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf)
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{
// record commands until we hit the ENDMACRO
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if (!m_Executing)
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{
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// at the ENDMACRO call we shift gears and start looking for invocations
if(lff.m_Name == "ENDMACRO")
{
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std::vector<std::string> expandedArguments;
mf.ExpandArguments(lff.m_Arguments, expandedArguments);
if(!expandedArguments.empty() && (expandedArguments[0] == m_Args[0]))
{
m_Executing = true;
std::string name = m_Args[0];
std::vector<std::string>::size_type cc;
name += "(";
for ( cc = 0; cc < m_Args.size(); cc ++ )
{
name += " " + m_Args[cc];
}
name += " )";
mf.AddMacro(m_Args[0].c_str(), name.c_str());
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return true;
}
}
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// if it wasn't an endmacro and we are not executing then we must be
// recording
m_Functions.push_back(lff);
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return true;
}
// otherwise the macro has been recorded and we are executing
// so we look for macro invocations
if(lff.m_Name == m_Args[0])
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{
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std::string tmps;
cmListFileArgument arg;
std::string variable;
// Expand the argument list to the macro.
std::vector<std::string> expandedArguments;
mf.ExpandArguments(lff.m_Arguments, expandedArguments);
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// make sure the number of arguments passed is at least the number
// required by the signature
if (expandedArguments.size() < m_Args.size() - 1)
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{
cmOStringStream error;
error << "Error in cmake code at\n"
<< lff.m_FilePath << ":" << lff.m_Line << ":\n"
<< "Invocation of macro \""
<< lff.m_Name.c_str() << "\" with incorrect number of arguments.";
cmSystemTools::Error(error.str().c_str());
return true;
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}
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// set the value of argc
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cmOStringStream argcDefStream;
argcDefStream << expandedArguments.size();
std::string argcDef = argcDefStream.str();
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// declare varuiables for ARGV ARGN but do not compute until needed
std::string argvDef;
std::string argnDef;
bool argnDefInitialized = false;
bool argvDefInitialized = false;
// Invoke all the functions that were collected in the block.
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cmListFileFunction newLFF;
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// for each function
for(unsigned int c = 0; c < m_Functions.size(); ++c)
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{
// Replace the formal arguments and then invoke the command.
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newLFF.m_Arguments.clear();
newLFF.m_Arguments.reserve(m_Functions[c].m_Arguments.size());
newLFF.m_Name = m_Functions[c].m_Name;
newLFF.m_FilePath = m_Functions[c].m_FilePath;
newLFF.m_Line = m_Functions[c].m_Line;
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// for each argument of the current function
for (std::vector<cmListFileArgument>::const_iterator k =
m_Functions[c].m_Arguments.begin();
k != m_Functions[c].m_Arguments.end(); ++k)
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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 < m_Args.size(); ++j)
{
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variable = "${";
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variable += m_Args[j];
variable += "}";
cmSystemTools::ReplaceString(tmps, variable.c_str(),
expandedArguments[j-1].c_str());
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}
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// replace argc
cmSystemTools::ReplaceString(tmps, "${ARGC}",argcDef.c_str());
// repleace ARGN
if (tmps.find("${ARGN}") != std::string::npos)
{
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if (!argnDefInitialized)
{
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std::vector<std::string>::iterator eit;
std::vector<std::string>::size_type cnt = 0;
for ( eit = expandedArguments.begin();
eit != expandedArguments.end();
++ eit )
{
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if ( cnt >= m_Args.size()-1 )
{
if ( argnDef.size() > 0 )
{
argnDef += ";";
}
argnDef += *eit;
}
cnt ++;
}
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argnDefInitialized = true;
}
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cmSystemTools::ReplaceString(tmps, "${ARGN}", argnDef.c_str());
}
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// if the current argument of the current function has ${ARGV in it
// then try replacing ARGV values
if (tmps.find("${ARGV") != std::string::npos)
{
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char argvName[60];
// repleace ARGV, compute it only once
if (!argvDefInitialized)
{
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std::vector<std::string>::iterator eit;
for ( eit = expandedArguments.begin();
eit != expandedArguments.end();
++ eit )
{
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if ( argvDef.size() > 0 )
{
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argvDef += ";";
}
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argvDef += *eit;
}
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argvDefInitialized = true;
}
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cmSystemTools::ReplaceString(tmps, "${ARGV}", argvDef.c_str());
// also replace the ARGV1 ARGV2 ... etc
for (unsigned int t = 0; t < expandedArguments.size(); ++t)
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{
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sprintf(argvName,"${ARGV%i}",t);
cmSystemTools::ReplaceString(tmps, argvName,
expandedArguments[t].c_str());
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}
}
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arg.Value = tmps;
arg.Quoted = k->Quoted;
newLFF.m_Arguments.push_back(arg);
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}
if(!mf.ExecuteCommand(newLFF))
{
cmOStringStream error;
error << "Error in cmake code at\n"
<< lff.m_FilePath << ":" << lff.m_Line << ":\n"
<< "A command failed during the invocation of macro \""
<< lff.m_Name.c_str() << "\".";
cmSystemTools::Error(error.str().c_str());
}
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}
return true;
}
// if not an invocation then it is just an ordinary line
return false;
}
bool cmMacroFunctionBlocker::
ShouldRemove(const cmListFileFunction&, cmMakefile &)
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{
return false;
}
void cmMacroFunctionBlocker::
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ScopeEnded(cmMakefile &mf)
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{
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// macros never leave scope but we should have seen the ENDMACRO call by now
if (m_Executing != true)
{
cmSystemTools::Error("The end of a CMakeLists file was reached with a MACRO statement that was not closed properly. Within the directory: ",
mf.GetCurrentDirectory(), " with macro ",
m_Args[0].c_str());
}
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}
bool cmMacroCommand::InitialPass(std::vector<std::string> const& args)
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{
if(args.size() < 1)
{
this->SetError("called with incorrect number of arguments");
return false;
}
// create a function blocker
cmMacroFunctionBlocker *f = new cmMacroFunctionBlocker();
for(std::vector<std::string>::const_iterator j = args.begin();
j != args.end(); ++j)
{
f->m_Args.push_back(*j);
}
m_Makefile->AddFunctionBlocker(f);
return true;
}