diff options
Diffstat (limited to 'Source/cmCMakePolicyCommand.cxx')
-rw-r--r-- | Source/cmCMakePolicyCommand.cxx | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/Source/cmCMakePolicyCommand.cxx b/Source/cmCMakePolicyCommand.cxx new file mode 100644 index 000000000..f4be55930 --- /dev/null +++ b/Source/cmCMakePolicyCommand.cxx @@ -0,0 +1,172 @@ +/*============================================================================ + CMake - Cross Platform Makefile Generator + Copyright 2000-2009 Kitware, Inc., Insight Software Consortium + + Distributed under the OSI-approved BSD License (the "License"); + see accompanying file Copyright.txt for details. + + This software is distributed WITHOUT ANY WARRANTY; without even the + implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the License for more information. +============================================================================*/ +#include "cmCMakePolicyCommand.h" + +#include "cmVersion.h" + +// cmCMakePolicyCommand +bool cmCMakePolicyCommand +::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &) +{ + if(args.size() < 1) + { + this->SetError("requires at least one argument."); + return false; + } + + if(args[0] == "SET") + { + return this->HandleSetMode(args); + } + else if(args[0] == "GET") + { + return this->HandleGetMode(args); + } + else if(args[0] == "PUSH") + { + if(args.size() > 1) + { + this->SetError("PUSH may not be given additional arguments."); + return false; + } + this->Makefile->PushPolicy(); + return true; + } + else if(args[0] == "POP") + { + if(args.size() > 1) + { + this->SetError("POP may not be given additional arguments."); + return false; + } + this->Makefile->PopPolicy(); + return true; + } + else if(args[0] == "VERSION") + { + return this->HandleVersionMode(args); + } + + cmOStringStream e; + e << "given unknown first argument \"" << args[0] << "\""; + this->SetError(e.str().c_str()); + return false; +} + +//---------------------------------------------------------------------------- +bool cmCMakePolicyCommand::HandleSetMode(std::vector<std::string> const& args) +{ + if(args.size() != 3) + { + this->SetError("SET must be given exactly 2 additional arguments."); + return false; + } + + cmPolicies::PolicyStatus status; + if(args[2] == "OLD") + { + status = cmPolicies::OLD; + } + else if(args[2] == "NEW") + { + status = cmPolicies::NEW; + } + else + { + cmOStringStream e; + e << "SET given unrecognized policy status \"" << args[2] << "\""; + this->SetError(e.str().c_str()); + return false; + } + + if(!this->Makefile->SetPolicy(args[1].c_str(), status)) + { + this->SetError("SET failed to set policy."); + return false; + } + return true; +} + +//---------------------------------------------------------------------------- +bool cmCMakePolicyCommand::HandleGetMode(std::vector<std::string> const& args) +{ + if(args.size() != 3) + { + this->SetError("GET must be given exactly 2 additional arguments."); + return false; + } + + // Get arguments. + std::string const& id = args[1]; + std::string const& var = args[2]; + + // Lookup the policy number. + cmPolicies::PolicyID pid; + if(!this->Makefile->GetPolicies()->GetPolicyID(id.c_str(), pid)) + { + cmOStringStream e; + e << "GET given policy \"" << id << "\" which is not known to this " + << "version of CMake."; + this->SetError(e.str().c_str()); + return false; + } + + // Lookup the policy setting. + cmPolicies::PolicyStatus status = this->Makefile->GetPolicyStatus(pid); + switch (status) + { + case cmPolicies::OLD: + // Report that the policy is set to OLD. + this->Makefile->AddDefinition(var.c_str(), "OLD"); + break; + case cmPolicies::WARN: + // Report that the policy is not set. + this->Makefile->AddDefinition(var.c_str(), ""); + break; + case cmPolicies::NEW: + // Report that the policy is set to NEW. + this->Makefile->AddDefinition(var.c_str(), "NEW"); + break; + case cmPolicies::REQUIRED_IF_USED: + case cmPolicies::REQUIRED_ALWAYS: + // The policy is required to be set before anything needs it. + { + cmOStringStream e; + e << this->Makefile->GetPolicies()->GetRequiredPolicyError(pid) + << "\n" + << "The call to cmake_policy(GET " << id << " ...) at which this " + << "error appears requests the policy, and this version of CMake " + << "requires that the policy be set to NEW before it is checked."; + this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str()); + } + } + + return true; +} + +//---------------------------------------------------------------------------- +bool +cmCMakePolicyCommand::HandleVersionMode(std::vector<std::string> const& args) +{ + if(args.size() <= 1) + { + this->SetError("VERSION not given an argument"); + return false; + } + else if(args.size() >= 3) + { + this->SetError("VERSION given too many arguments"); + return false; + } + this->Makefile->SetPolicyVersion(args[1].c_str()); + return true; +} |