| /*============================================================================ |
| CMake - Cross Platform Makefile Generator |
| Copyright 2014 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 "cmConditionEvaluator.h" |
| #include "cmOutputConverter.h" |
| |
| cmConditionEvaluator::cmConditionEvaluator(cmMakefile& makefile, |
| const cmListFileContext &context, |
| const cmListFileBacktrace& bt): |
| Makefile(makefile), |
| ExecutionContext(context), |
| Backtrace(bt), |
| Policy12Status(makefile.GetPolicyStatus(cmPolicies::CMP0012)), |
| Policy54Status(makefile.GetPolicyStatus(cmPolicies::CMP0054)), |
| Policy57Status(makefile.GetPolicyStatus(cmPolicies::CMP0057)), |
| Policy64Status(makefile.GetPolicyStatus(cmPolicies::CMP0064)) |
| { |
| |
| } |
| |
| //========================================================================= |
| // order of operations, |
| // 1. ( ) -- parenthetical groups |
| // 2. IS_DIRECTORY EXISTS COMMAND DEFINED etc predicates |
| // 3. MATCHES LESS GREATER EQUAL STRLESS STRGREATER STREQUAL etc binary ops |
| // 4. NOT |
| // 5. AND OR |
| // |
| // There is an issue on whether the arguments should be values of references, |
| // for example IF (FOO AND BAR) should that compare the strings FOO and BAR |
| // or should it really do IF (${FOO} AND ${BAR}) Currently IS_DIRECTORY |
| // EXISTS COMMAND and DEFINED all take values. EQUAL, LESS and GREATER can |
| // take numeric values or variable names. STRLESS and STRGREATER take |
| // variable names but if the variable name is not found it will use the name |
| // directly. AND OR take variables or the values 0 or 1. |
| |
| bool cmConditionEvaluator::IsTrue( |
| const std::vector<cmExpandedCommandArgument> &args, |
| std::string &errorString, |
| cmake::MessageType &status) |
| { |
| errorString = ""; |
| |
| // handle empty invocation |
| if (args.size() < 1) |
| { |
| return false; |
| } |
| |
| // store the reduced args in this vector |
| cmArgumentList newArgs; |
| |
| // copy to the list structure |
| newArgs.insert(newArgs.end(), args.begin(), args.end()); |
| |
| // now loop through the arguments and see if we can reduce any of them |
| // we do this multiple times. Once for each level of precedence |
| // parens |
| if (!this->HandleLevel0(newArgs, errorString, status)) |
| { |
| return false; |
| } |
| //predicates |
| if (!this->HandleLevel1(newArgs, errorString, status)) |
| { |
| return false; |
| } |
| // binary ops |
| if (!this->HandleLevel2(newArgs, errorString, status)) |
| { |
| return false; |
| } |
| |
| // NOT |
| if (!this->HandleLevel3(newArgs, errorString, status)) |
| { |
| return false; |
| } |
| // AND OR |
| if (!this->HandleLevel4(newArgs, errorString, status)) |
| { |
| return false; |
| } |
| |
| // now at the end there should only be one argument left |
| if (newArgs.size() != 1) |
| { |
| errorString = "Unknown arguments specified"; |
| status = cmake::FATAL_ERROR; |
| return false; |
| } |
| |
| return this->GetBooleanValueWithAutoDereference(*(newArgs.begin()), |
| errorString, status, true); |
| } |
| |
| cmListFileContext cmConditionEvaluator::GetConditionContext( |
| cmMakefile* mf, |
| const cmCommandContext& command, |
| const std::string& filePath) |
| { |
| cmListFileContext context = |
| cmListFileContext::FromCommandContext( |
| command, |
| filePath); |
| |
| if(!mf->GetCMakeInstance()->GetIsInTryCompile()) |
| { |
| cmOutputConverter converter(mf->GetStateSnapshot()); |
| context.FilePath = converter.Convert(context.FilePath, |
| cmOutputConverter::HOME); |
| } |
| return context; |
| } |
| |
| //========================================================================= |
| const char* cmConditionEvaluator::GetDefinitionIfUnquoted( |
| cmExpandedCommandArgument const& argument) const |
| { |
| if((this->Policy54Status != cmPolicies::WARN && |
| this->Policy54Status != cmPolicies::OLD) && |
| argument.WasQuoted()) |
| { |
| return 0; |
| } |
| |
| const char* def = this->Makefile.GetDefinition(argument.GetValue()); |
| |
| if(def && argument.WasQuoted() && this->Policy54Status == cmPolicies::WARN) |
| { |
| if(!this->Makefile.HasCMP0054AlreadyBeenReported( |
| this->ExecutionContext)) |
| { |
| std::ostringstream e; |
| e << (cmPolicies::GetPolicyWarning(cmPolicies::CMP0054)) << "\n"; |
| e << "Quoted variables like \"" << argument.GetValue() << |
| "\" will no longer be dereferenced " |
| "when the policy is set to NEW. " |
| "Since the policy is not set the OLD behavior will be used."; |
| |
| this->Makefile.GetCMakeInstance() |
| ->IssueMessage(cmake::AUTHOR_WARNING, e.str(), |
| this->Backtrace); |
| } |
| } |
| |
| return def; |
| } |
| |
| //========================================================================= |
| const char* cmConditionEvaluator::GetVariableOrString( |
| const cmExpandedCommandArgument& argument) const |
| { |
| const char* def = this->GetDefinitionIfUnquoted(argument); |
| |
| if(!def) |
| { |
| def = argument.c_str(); |
| } |
| |
| return def; |
| } |
| |
| //========================================================================= |
| bool cmConditionEvaluator::IsKeyword(std::string const& keyword, |
| cmExpandedCommandArgument& argument) const |
| { |
| if((this->Policy54Status != cmPolicies::WARN && |
| this->Policy54Status != cmPolicies::OLD) && |
| argument.WasQuoted()) |
| { |
| return false; |
| } |
| |
| bool isKeyword = argument.GetValue() == keyword; |
| |
| if(isKeyword && argument.WasQuoted() && |
| this->Policy54Status == cmPolicies::WARN) |
| { |
| if(!this->Makefile.HasCMP0054AlreadyBeenReported( |
| this->ExecutionContext)) |
| { |
| std::ostringstream e; |
| e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0054) << "\n"; |
| e << "Quoted keywords like \"" << argument.GetValue() << |
| "\" will no longer be interpreted as keywords " |
| "when the policy is set to NEW. " |
| "Since the policy is not set the OLD behavior will be used."; |
| |
| this->Makefile.GetCMakeInstance() |
| ->IssueMessage(cmake::AUTHOR_WARNING, e.str(), |
| this->Backtrace); |
| } |
| } |
| |
| return isKeyword; |
| } |
| |
| //========================================================================= |
| bool cmConditionEvaluator::GetBooleanValue( |
| cmExpandedCommandArgument& arg) const |
| { |
| // Check basic constants. |
| if (arg == "0") |
| { |
| return false; |
| } |
| if (arg == "1") |
| { |
| return true; |
| } |
| |
| // Check named constants. |
| if (cmSystemTools::IsOn(arg.c_str())) |
| { |
| return true; |
| } |
| if (cmSystemTools::IsOff(arg.c_str())) |
| { |
| return false; |
| } |
| |
| // Check for numbers. |
| if(!arg.empty()) |
| { |
| char* end; |
| double d = strtod(arg.c_str(), &end); |
| if(*end == '\0') |
| { |
| // The whole string is a number. Use C conversion to bool. |
| return d? true:false; |
| } |
| } |
| |
| // Check definition. |
| const char* def = this->GetDefinitionIfUnquoted(arg); |
| return !cmSystemTools::IsOff(def); |
| } |
| |
| //========================================================================= |
| // Boolean value behavior from CMake 2.6.4 and below. |
| bool cmConditionEvaluator::GetBooleanValueOld( |
| cmExpandedCommandArgument const& arg, bool one) const |
| { |
| if(one) |
| { |
| // Old IsTrue behavior for single argument. |
| if(arg == "0") |
| { return false; } |
| else if(arg == "1") |
| { return true; } |
| else |
| { |
| const char* def = this->GetDefinitionIfUnquoted(arg); |
| return !cmSystemTools::IsOff(def); |
| } |
| } |
| else |
| { |
| // Old GetVariableOrNumber behavior. |
| const char* def = this->GetDefinitionIfUnquoted(arg); |
| if(!def && atoi(arg.c_str())) |
| { |
| def = arg.c_str(); |
| } |
| return !cmSystemTools::IsOff(def); |
| } |
| } |
| |
| //========================================================================= |
| // returns the resulting boolean value |
| bool cmConditionEvaluator::GetBooleanValueWithAutoDereference( |
| cmExpandedCommandArgument &newArg, |
| std::string &errorString, |
| cmake::MessageType &status, |
| bool oneArg) const |
| { |
| // Use the policy if it is set. |
| if (this->Policy12Status == cmPolicies::NEW) |
| { |
| return GetBooleanValue(newArg); |
| } |
| else if (this->Policy12Status == cmPolicies::OLD) |
| { |
| return GetBooleanValueOld(newArg, oneArg); |
| } |
| |
| // Check policy only if old and new results differ. |
| bool newResult = this->GetBooleanValue(newArg); |
| bool oldResult = this->GetBooleanValueOld(newArg, oneArg); |
| if(newResult != oldResult) |
| { |
| switch(this->Policy12Status) |
| { |
| case cmPolicies::WARN: |
| { |
| errorString = "An argument named \"" + newArg.GetValue() |
| + "\" appears in a conditional statement. " |
| + cmPolicies::GetPolicyWarning(cmPolicies::CMP0012); |
| status = cmake::AUTHOR_WARNING; |
| } |
| case cmPolicies::OLD: |
| return oldResult; |
| case cmPolicies::REQUIRED_IF_USED: |
| case cmPolicies::REQUIRED_ALWAYS: |
| { |
| errorString = "An argument named \"" + newArg.GetValue() |
| + "\" appears in a conditional statement. " |
| + cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0012); |
| status = cmake::FATAL_ERROR; |
| } |
| case cmPolicies::NEW: |
| break; |
| } |
| } |
| return newResult; |
| } |
| |
| //========================================================================= |
| void cmConditionEvaluator::IncrementArguments(cmArgumentList &newArgs, |
| cmArgumentList::iterator &argP1, |
| cmArgumentList::iterator &argP2) const |
| { |
| if (argP1 != newArgs.end()) |
| { |
| argP1++; |
| argP2 = argP1; |
| if (argP1 != newArgs.end()) |
| { |
| argP2++; |
| } |
| } |
| } |
| |
| //========================================================================= |
| // helper function to reduce code duplication |
| void cmConditionEvaluator::HandlePredicate(bool value, int &reducible, |
| cmArgumentList::iterator &arg, |
| cmArgumentList &newArgs, |
| cmArgumentList::iterator &argP1, |
| cmArgumentList::iterator &argP2) const |
| { |
| if(value) |
| { |
| *arg = cmExpandedCommandArgument("1", true); |
| } |
| else |
| { |
| *arg = cmExpandedCommandArgument("0", true); |
| } |
| newArgs.erase(argP1); |
| argP1 = arg; |
| this->IncrementArguments(newArgs,argP1,argP2); |
| reducible = 1; |
| } |
| |
| //========================================================================= |
| // helper function to reduce code duplication |
| void cmConditionEvaluator::HandleBinaryOp(bool value, int &reducible, |
| cmArgumentList::iterator &arg, |
| cmArgumentList &newArgs, |
| cmArgumentList::iterator &argP1, |
| cmArgumentList::iterator &argP2) |
| { |
| if(value) |
| { |
| *arg = cmExpandedCommandArgument("1", true); |
| } |
| else |
| { |
| *arg = cmExpandedCommandArgument("0", true); |
| } |
| newArgs.erase(argP2); |
| newArgs.erase(argP1); |
| argP1 = arg; |
| this->IncrementArguments(newArgs,argP1,argP2); |
| reducible = 1; |
| } |
| |
| //========================================================================= |
| // level 0 processes parenthetical expressions |
| bool cmConditionEvaluator::HandleLevel0(cmArgumentList &newArgs, |
| std::string &errorString, |
| cmake::MessageType &status) |
| { |
| int reducible; |
| do |
| { |
| reducible = 0; |
| cmArgumentList::iterator arg = newArgs.begin(); |
| while (arg != newArgs.end()) |
| { |
| if (IsKeyword("(", *arg)) |
| { |
| // search for the closing paren for this opening one |
| cmArgumentList::iterator argClose; |
| argClose = arg; |
| argClose++; |
| unsigned int depth = 1; |
| while (argClose != newArgs.end() && depth) |
| { |
| if (this->IsKeyword("(", *argClose)) |
| { |
| depth++; |
| } |
| if (this->IsKeyword(")", *argClose)) |
| { |
| depth--; |
| } |
| argClose++; |
| } |
| if (depth) |
| { |
| errorString = "mismatched parenthesis in condition"; |
| status = cmake::FATAL_ERROR; |
| return false; |
| } |
| // store the reduced args in this vector |
| std::vector<cmExpandedCommandArgument> newArgs2; |
| |
| // copy to the list structure |
| cmArgumentList::iterator argP1 = arg; |
| argP1++; |
| newArgs2.insert(newArgs2.end(), argP1, argClose); |
| newArgs2.pop_back(); |
| // now recursively invoke IsTrue to handle the values inside the |
| // parenthetical expression |
| bool value = |
| this->IsTrue(newArgs2, errorString, status); |
| if(value) |
| { |
| *arg = cmExpandedCommandArgument("1", true); |
| } |
| else |
| { |
| *arg = cmExpandedCommandArgument("0", true); |
| } |
| argP1 = arg; |
| argP1++; |
| // remove the now evaluated parenthetical expression |
| newArgs.erase(argP1,argClose); |
| } |
| ++arg; |
| } |
| } |
| while (reducible); |
| return true; |
| } |
| |
| //========================================================================= |
| // level one handles most predicates except for NOT |
| bool cmConditionEvaluator::HandleLevel1(cmArgumentList &newArgs, |
| std::string &, cmake::MessageType &) |
| { |
| int reducible; |
| do |
| { |
| reducible = 0; |
| cmArgumentList::iterator arg = newArgs.begin(); |
| cmArgumentList::iterator argP1; |
| cmArgumentList::iterator argP2; |
| while (arg != newArgs.end()) |
| { |
| argP1 = arg; |
| this->IncrementArguments(newArgs,argP1,argP2); |
| // does a file exist |
| if (this->IsKeyword("EXISTS", *arg) && argP1 != newArgs.end()) |
| { |
| this->HandlePredicate( |
| cmSystemTools::FileExists(argP1->c_str()), |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| // does a directory with this name exist |
| if (this->IsKeyword("IS_DIRECTORY", *arg) && argP1 != newArgs.end()) |
| { |
| this->HandlePredicate( |
| cmSystemTools::FileIsDirectory(argP1->c_str()), |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| // does a symlink with this name exist |
| if (this->IsKeyword("IS_SYMLINK", *arg) && argP1 != newArgs.end()) |
| { |
| this->HandlePredicate( |
| cmSystemTools::FileIsSymlink(argP1->c_str()), |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| // is the given path an absolute path ? |
| if (this->IsKeyword("IS_ABSOLUTE", *arg) && argP1 != newArgs.end()) |
| { |
| this->HandlePredicate( |
| cmSystemTools::FileIsFullPath(argP1->c_str()), |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| // does a command exist |
| if (this->IsKeyword("COMMAND", *arg) && argP1 != newArgs.end()) |
| { |
| cmCommand* command = |
| this->Makefile.GetState()->GetCommand(argP1->c_str()); |
| this->HandlePredicate( |
| command ? true : false, |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| // does a policy exist |
| if (this->IsKeyword("POLICY", *arg) && argP1 != newArgs.end()) |
| { |
| cmPolicies::PolicyID pid; |
| this->HandlePredicate( |
| cmPolicies::GetPolicyID(argP1->c_str(), pid), |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| // does a target exist |
| if (this->IsKeyword("TARGET", *arg) && argP1 != newArgs.end()) |
| { |
| this->HandlePredicate( |
| this->Makefile.FindTargetToUse(argP1->GetValue())?true:false, |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| // does a test exist |
| if(this->Policy64Status != cmPolicies::OLD && |
| this->Policy64Status != cmPolicies::WARN) |
| { |
| if (this->IsKeyword("TEST", *arg) && argP1 != newArgs.end()) |
| { |
| const cmTest* haveTest = this->Makefile.GetTest(argP1->c_str()); |
| this->HandlePredicate( |
| haveTest?true:false, |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| } |
| else if(this->Policy64Status == cmPolicies::WARN && |
| this->IsKeyword("TEST", *arg)) |
| { |
| std::ostringstream e; |
| e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0064) << "\n"; |
| e << "TEST will be interpreted as an operator " |
| "when the policy is set to NEW. " |
| "Since the policy is not set the OLD behavior will be used."; |
| |
| this->Makefile.IssueMessage(cmake::AUTHOR_WARNING, e.str()); |
| } |
| // is a variable defined |
| if (this->IsKeyword("DEFINED", *arg) && argP1 != newArgs.end()) |
| { |
| size_t argP1len = argP1->GetValue().size(); |
| bool bdef = false; |
| if(argP1len > 4 && argP1->GetValue().substr(0, 4) == "ENV{" && |
| argP1->GetValue().operator[](argP1len-1) == '}') |
| { |
| std::string env = argP1->GetValue().substr(4, argP1len-5); |
| bdef = cmSystemTools::GetEnv(env.c_str())?true:false; |
| } |
| else |
| { |
| bdef = this->Makefile.IsDefinitionSet(argP1->GetValue()); |
| } |
| this->HandlePredicate(bdef, reducible, arg, newArgs, argP1, argP2); |
| } |
| ++arg; |
| } |
| } |
| while (reducible); |
| return true; |
| } |
| |
| //========================================================================= |
| // level two handles most binary operations except for AND OR |
| bool cmConditionEvaluator::HandleLevel2(cmArgumentList &newArgs, |
| std::string &errorString, |
| cmake::MessageType &status) |
| { |
| int reducible; |
| const char *def; |
| const char *def2; |
| do |
| { |
| reducible = 0; |
| cmArgumentList::iterator arg = newArgs.begin(); |
| cmArgumentList::iterator argP1; |
| cmArgumentList::iterator argP2; |
| while (arg != newArgs.end()) |
| { |
| argP1 = arg; |
| this->IncrementArguments(newArgs,argP1,argP2); |
| if (argP1 != newArgs.end() && argP2 != newArgs.end() && |
| IsKeyword("MATCHES", *argP1)) |
| { |
| def = this->GetVariableOrString(*arg); |
| const char* rex = argP2->c_str(); |
| this->Makefile.ClearMatches(); |
| cmsys::RegularExpression regEntry; |
| if ( !regEntry.compile(rex) ) |
| { |
| std::ostringstream error; |
| error << "Regular expression \"" << rex << "\" cannot compile"; |
| errorString = error.str(); |
| status = cmake::FATAL_ERROR; |
| return false; |
| } |
| if (regEntry.find(def)) |
| { |
| this->Makefile.StoreMatches(regEntry); |
| *arg = cmExpandedCommandArgument("1", true); |
| } |
| else |
| { |
| *arg = cmExpandedCommandArgument("0", true); |
| } |
| newArgs.erase(argP2); |
| newArgs.erase(argP1); |
| argP1 = arg; |
| this->IncrementArguments(newArgs,argP1,argP2); |
| reducible = 1; |
| } |
| |
| if (argP1 != newArgs.end() && this->IsKeyword("MATCHES", *arg)) |
| { |
| *arg = cmExpandedCommandArgument("0", true); |
| newArgs.erase(argP1); |
| argP1 = arg; |
| this->IncrementArguments(newArgs,argP1,argP2); |
| reducible = 1; |
| } |
| |
| if (argP1 != newArgs.end() && argP2 != newArgs.end() && |
| (this->IsKeyword("LESS", *argP1) || |
| this->IsKeyword("GREATER", *argP1) || |
| this->IsKeyword("EQUAL", *argP1))) |
| { |
| def = this->GetVariableOrString(*arg); |
| def2 = this->GetVariableOrString(*argP2); |
| double lhs; |
| double rhs; |
| bool result; |
| if(sscanf(def, "%lg", &lhs) != 1 || |
| sscanf(def2, "%lg", &rhs) != 1) |
| { |
| result = false; |
| } |
| else if (*(argP1) == "LESS") |
| { |
| result = (lhs < rhs); |
| } |
| else if (*(argP1) == "GREATER") |
| { |
| result = (lhs > rhs); |
| } |
| else |
| { |
| result = (lhs == rhs); |
| } |
| this->HandleBinaryOp(result, |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| |
| if (argP1 != newArgs.end() && argP2 != newArgs.end() && |
| (this->IsKeyword("STRLESS", *argP1) || |
| this->IsKeyword("STREQUAL", *argP1) || |
| this->IsKeyword("STRGREATER", *argP1))) |
| { |
| def = this->GetVariableOrString(*arg); |
| def2 = this->GetVariableOrString(*argP2); |
| int val = strcmp(def,def2); |
| bool result; |
| if (*(argP1) == "STRLESS") |
| { |
| result = (val < 0); |
| } |
| else if (*(argP1) == "STRGREATER") |
| { |
| result = (val > 0); |
| } |
| else // strequal |
| { |
| result = (val == 0); |
| } |
| this->HandleBinaryOp(result, |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| |
| if (argP1 != newArgs.end() && argP2 != newArgs.end() && |
| (this->IsKeyword("VERSION_LESS", *argP1) || |
| this->IsKeyword("VERSION_GREATER", *argP1) || |
| this->IsKeyword("VERSION_EQUAL", *argP1))) |
| { |
| def = this->GetVariableOrString(*arg); |
| def2 = this->GetVariableOrString(*argP2); |
| cmSystemTools::CompareOp op = cmSystemTools::OP_EQUAL; |
| if(*argP1 == "VERSION_LESS") |
| { |
| op = cmSystemTools::OP_LESS; |
| } |
| else if(*argP1 == "VERSION_GREATER") |
| { |
| op = cmSystemTools::OP_GREATER; |
| } |
| bool result = cmSystemTools::VersionCompare(op, def, def2); |
| this->HandleBinaryOp(result, |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| |
| // is file A newer than file B |
| if (argP1 != newArgs.end() && argP2 != newArgs.end() && |
| this->IsKeyword("IS_NEWER_THAN", *argP1)) |
| { |
| int fileIsNewer=0; |
| bool success=cmSystemTools::FileTimeCompare(arg->GetValue(), |
| (argP2)->GetValue(), |
| &fileIsNewer); |
| this->HandleBinaryOp( |
| (success==false || fileIsNewer==1 || fileIsNewer==0), |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| |
| if (argP1 != newArgs.end() && argP2 != newArgs.end() && |
| this->IsKeyword("IN_LIST", *argP1)) |
| { |
| if(this->Policy57Status != cmPolicies::OLD && |
| this->Policy57Status != cmPolicies::WARN) |
| { |
| bool result = false; |
| |
| def = this->GetVariableOrString(*arg); |
| def2 = this->Makefile.GetDefinition(argP2->GetValue()); |
| |
| if(def2) |
| { |
| std::vector<std::string> list; |
| cmSystemTools::ExpandListArgument(def2, list, true); |
| |
| result = std::find(list.begin(), list.end(), def) != list.end(); |
| } |
| |
| this->HandleBinaryOp(result, |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| else if(this->Policy57Status == cmPolicies::WARN) |
| { |
| std::ostringstream e; |
| e << cmPolicies::GetPolicyWarning(cmPolicies::CMP0057) << "\n"; |
| e << "IN_LIST will be interpreted as an operator " |
| "when the policy is set to NEW. " |
| "Since the policy is not set the OLD behavior will be used."; |
| |
| this->Makefile.IssueMessage(cmake::AUTHOR_WARNING, e.str()); |
| } |
| } |
| |
| ++arg; |
| } |
| } |
| while (reducible); |
| return true; |
| } |
| |
| //========================================================================= |
| // level 3 handles NOT |
| bool cmConditionEvaluator::HandleLevel3(cmArgumentList &newArgs, |
| std::string &errorString, |
| cmake::MessageType &status) |
| { |
| int reducible; |
| do |
| { |
| reducible = 0; |
| cmArgumentList::iterator arg = newArgs.begin(); |
| cmArgumentList::iterator argP1; |
| cmArgumentList::iterator argP2; |
| while (arg != newArgs.end()) |
| { |
| argP1 = arg; |
| IncrementArguments(newArgs,argP1,argP2); |
| if (argP1 != newArgs.end() && IsKeyword("NOT", *arg)) |
| { |
| bool rhs = this->GetBooleanValueWithAutoDereference(*argP1, |
| errorString, |
| status); |
| this->HandlePredicate(!rhs, reducible, arg, newArgs, argP1, argP2); |
| } |
| ++arg; |
| } |
| } |
| while (reducible); |
| return true; |
| } |
| |
| //========================================================================= |
| // level 4 handles AND OR |
| bool cmConditionEvaluator::HandleLevel4(cmArgumentList &newArgs, |
| std::string &errorString, |
| cmake::MessageType &status) |
| { |
| int reducible; |
| bool lhs; |
| bool rhs; |
| do |
| { |
| reducible = 0; |
| cmArgumentList::iterator arg = newArgs.begin(); |
| cmArgumentList::iterator argP1; |
| cmArgumentList::iterator argP2; |
| while (arg != newArgs.end()) |
| { |
| argP1 = arg; |
| IncrementArguments(newArgs,argP1,argP2); |
| if (argP1 != newArgs.end() && IsKeyword("AND", *argP1) && |
| argP2 != newArgs.end()) |
| { |
| lhs = this->GetBooleanValueWithAutoDereference(*arg, |
| errorString, |
| status); |
| rhs = this->GetBooleanValueWithAutoDereference(*argP2, |
| errorString, |
| status); |
| this->HandleBinaryOp((lhs && rhs), |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| |
| if (argP1 != newArgs.end() && this->IsKeyword("OR", *argP1) && |
| argP2 != newArgs.end()) |
| { |
| lhs = this->GetBooleanValueWithAutoDereference(*arg, |
| errorString, |
| status); |
| rhs = this->GetBooleanValueWithAutoDereference(*argP2, |
| errorString, |
| status); |
| this->HandleBinaryOp((lhs || rhs), |
| reducible, arg, newArgs, argP1, argP2); |
| } |
| ++arg; |
| } |
| } |
| while (reducible); |
| return true; |
| } |
