/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying

   file LICENSE.rst or https://cmake.org/licensing for details.  */

#include "cmTargetCompileDefinitionsCommand.h"

#include <cm/optional>

#include "cmListFileCache.h"

#include "cmMakefile.h"

#include "cmMessageType.h"

#include "cmStringAlgorithms.h"

#include "cmTarget.h"

#include "cmTargetPropCommandBase.h"

namespace {

class TargetCompileDefinitionsImpl : public cmTargetPropCommandBase

{

public:

  using cmTargetPropCommandBase::cmTargetPropCommandBase;

private:

  void HandleMissingTarget(std::string const& name) override

  {

    this->Makefile->IssueMessage(

      MessageType::FATAL_ERROR,

      cmStrCat("Cannot specify compile definitions for target \"", name,

               "\" which is not built by this project."));

  }

  bool HandleDirectContent(cmTarget* tgt,

                           std::vector<std::string> const& content,

                           bool /*prepend*/, bool /*system*/) override

  {

    tgt->AppendProperty("COMPILE_DEFINITIONS", this->Join(content),

                        this->Makefile->GetBacktrace());

    return true; // Successfully handled.

  }

  std::string Join(std::vector<std::string> const& content) override

  {

    std::string defs;

    std::string sep;

    for (std::string const& it : content) {

      if (cmHasLiteralPrefix(it, "-D")) {

        defs += sep + it.substr(2);

      } else {

        defs += sep + it;

      }

      sep = ";";

    }

    return defs;

  }

};

} // namespace

bool cmTargetCompileDefinitionsCommand(std::vector<std::string> const& args,

                                       cmExecutionStatus& status)

{

  return TargetCompileDefinitionsImpl(status).HandleArguments(

    args, "COMPILE_DEFINITIONS");

}