Source/cmBreakCommand.cxx

   1 /* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   2    file Copyright.txt or https://cmake.org/licensing for details.  */
   3 #include "cmBreakCommand.h"
   4
   5 #include <sstream>
   6
   7 #include "cmExecutionStatus.h"
   8 #include "cmMakefile.h"
   9 #include "cmMessageType.h"
  10 #include "cmPolicies.h"
  11
  12 // cmBreakCommand
  13 bool cmBreakCommand(std::vector<std::string> const& args,
  14                     cmExecutionStatus& status)
  15 {
  16   if (!status.GetMakefile().IsLoopBlock()) {
  17     bool issueMessage = true;
  18     std::ostringstream e;
  19     MessageType messageType = MessageType::AUTHOR_WARNING;
  20     switch (status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0055)) {
  21       case cmPolicies::WARN:
  22         e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0055) << "\n";
  23         break;
  24       case cmPolicies::OLD:
  25         issueMessage = false;
  26         break;
  27       case cmPolicies::REQUIRED_ALWAYS:
  28       case cmPolicies::REQUIRED_IF_USED:
  29       case cmPolicies::NEW:
  30         messageType = MessageType::FATAL_ERROR;
  31         break;
  32     }
  33
  34     if (issueMessage) {
  35       e << "A BREAK command was found outside of a proper "
  36            "FOREACH or WHILE loop scope.";
  37       status.GetMakefile().IssueMessage(messageType, e.str());
  38       if (messageType == MessageType::FATAL_ERROR) {
  39         return false;
  40       }
  41     }
  42   }
  43
  44   status.SetBreakInvoked();
  45
  46   if (!args.empty()) {
  47     bool issueMessage = true;
  48     std::ostringstream e;
  49     MessageType messageType = MessageType::AUTHOR_WARNING;
  50     switch (status.GetMakefile().GetPolicyStatus(cmPolicies::CMP0055)) {
  51       case cmPolicies::WARN:
  52         e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0055) << "\n";
  53         break;
  54       case cmPolicies::OLD:
  55         issueMessage = false;
  56         break;
  57       case cmPolicies::REQUIRED_ALWAYS:
  58       case cmPolicies::REQUIRED_IF_USED:
  59       case cmPolicies::NEW:
  60         messageType = MessageType::FATAL_ERROR;
  61         break;
  62     }
  63
  64     if (issueMessage) {
  65       e << "The BREAK command does not accept any arguments.";
  66       status.GetMakefile().IssueMessage(messageType, e.str());
  67       if (messageType == MessageType::FATAL_ERROR) {
  68         return false;
  69       }
  70     }
  71   }
  72
  73   return true;
  74 }