/*============================================================================ CMake - Cross Platform Makefile Generator Copyright 2012 Stephen Kelly 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 "cmMakefile.h" #include "cmGeneratorExpressionEvaluator.h" #include "cmGeneratorExpressionParser.h" #include "cmGeneratorExpressionDAGChecker.h" #include "cmGeneratorExpression.h" #include #include #include //---------------------------------------------------------------------------- #if !defined(__SUNPRO_CC) || __SUNPRO_CC > 0x510 static #endif void reportError(cmGeneratorExpressionContext *context, const std::string &expr, const std::string &result) { context->HadError = true; if (context->Quiet) { return; } cmOStringStream e; e << "Error evaluating generator expression:\n" << " " << expr << "\n" << result; context->Makefile->GetCMakeInstance() ->IssueMessage(cmake::FATAL_ERROR, e.str().c_str(), context->Backtrace); } //---------------------------------------------------------------------------- struct cmGeneratorExpressionNode { enum { DynamicParameters = 0, OneOrMoreParameters = -1, OneOrZeroParameters = -2 }; virtual ~cmGeneratorExpressionNode() {} virtual bool GeneratesContent() const { return true; } virtual bool RequiresLiteralInput() const { return false; } virtual bool AcceptsArbitraryContentParameter() const { return false; } virtual int NumExpectedParameters() const { return 1; } virtual std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *dagChecker ) const = 0; }; //---------------------------------------------------------------------------- static const struct ZeroNode : public cmGeneratorExpressionNode { ZeroNode() {} virtual bool GeneratesContent() const { return false; } virtual bool AcceptsArbitraryContentParameter() const { return true; } std::string Evaluate(const std::vector &, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return std::string(); } } zeroNode; //---------------------------------------------------------------------------- static const struct OneNode : public cmGeneratorExpressionNode { OneNode() {} virtual bool AcceptsArbitraryContentParameter() const { return true; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return parameters.front(); } } oneNode; //---------------------------------------------------------------------------- static const struct OneNode buildInterfaceNode; //---------------------------------------------------------------------------- static const struct ZeroNode installInterfaceNode; //---------------------------------------------------------------------------- #define BOOLEAN_OP_NODE(OPNAME, OP, SUCCESS_VALUE, FAILURE_VALUE) \ static const struct OP ## Node : public cmGeneratorExpressionNode \ { \ OP ## Node () {} \ virtual int NumExpectedParameters() const { return OneOrMoreParameters; } \ \ std::string Evaluate(const std::vector ¶meters, \ cmGeneratorExpressionContext *context, \ const GeneratorExpressionContent *content, \ cmGeneratorExpressionDAGChecker *) const \ { \ std::vector::const_iterator it = parameters.begin(); \ const std::vector::const_iterator end = parameters.end(); \ for ( ; it != end; ++it) \ { \ if (*it == #FAILURE_VALUE) \ { \ return #FAILURE_VALUE; \ } \ else if (*it != #SUCCESS_VALUE) \ { \ reportError(context, content->GetOriginalExpression(), \ "Parameters to $<" #OP "> must resolve to either '0' or '1'."); \ return std::string(); \ } \ } \ return #SUCCESS_VALUE; \ } \ } OPNAME; BOOLEAN_OP_NODE(andNode, AND, 1, 0) BOOLEAN_OP_NODE(orNode, OR, 0, 1) #undef BOOLEAN_OP_NODE //---------------------------------------------------------------------------- static const struct NotNode : public cmGeneratorExpressionNode { NotNode() {} std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *) const { if (*parameters.begin() != "0" && *parameters.begin() != "1") { reportError(context, content->GetOriginalExpression(), "$ parameter must resolve to exactly one '0' or '1' value."); return std::string(); } return *parameters.begin() == "0" ? "1" : "0"; } } notNode; //---------------------------------------------------------------------------- static const struct BoolNode : public cmGeneratorExpressionNode { BoolNode() {} virtual int NumExpectedParameters() const { return 1; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return !cmSystemTools::IsOff(parameters.begin()->c_str()) ? "1" : "0"; } } boolNode; //---------------------------------------------------------------------------- static const struct StrEqualNode : public cmGeneratorExpressionNode { StrEqualNode() {} virtual int NumExpectedParameters() const { return 2; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return *parameters.begin() == parameters[1] ? "1" : "0"; } } strEqualNode; //---------------------------------------------------------------------------- static const struct EqualNode : public cmGeneratorExpressionNode { EqualNode() {} virtual int NumExpectedParameters() const { return 2; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *) const { char *pEnd; int base = 0; bool flipSign = false; const char *lhs = parameters[0].c_str(); if (cmHasLiteralPrefix(lhs, "0b") || cmHasLiteralPrefix(lhs, "0B")) { base = 2; lhs += 2; } if (cmHasLiteralPrefix(lhs, "-0b") || cmHasLiteralPrefix(lhs, "-0B")) { base = 2; lhs += 3; flipSign = true; } if (cmHasLiteralPrefix(lhs, "+0b") || cmHasLiteralPrefix(lhs, "+0B")) { base = 2; lhs += 3; } long lnum = strtol(lhs, &pEnd, base); if (pEnd == lhs || *pEnd != '\0' || errno == ERANGE) { reportError(context, content->GetOriginalExpression(), "$ parameter " + parameters[0] + " is not a valid integer."); return std::string(); } if (flipSign) { lnum = -lnum; } base = 0; flipSign = false; const char *rhs = parameters[1].c_str(); if (cmHasLiteralPrefix(rhs, "0b") || cmHasLiteralPrefix(rhs, "0B")) { base = 2; rhs += 2; } if (cmHasLiteralPrefix(rhs, "-0b") || cmHasLiteralPrefix(rhs, "-0B")) { base = 2; rhs += 3; flipSign = true; } if (cmHasLiteralPrefix(rhs, "+0b") || cmHasLiteralPrefix(rhs, "+0B")) { base = 2; rhs += 3; } long rnum = strtol(rhs, &pEnd, base); if (pEnd == rhs || *pEnd != '\0' || errno == ERANGE) { reportError(context, content->GetOriginalExpression(), "$ parameter " + parameters[1] + " is not a valid integer."); return std::string(); } if (flipSign) { rnum = -rnum; } return lnum == rnum ? "1" : "0"; } } equalNode; //---------------------------------------------------------------------------- static const struct LowerCaseNode : public cmGeneratorExpressionNode { LowerCaseNode() {} bool AcceptsArbitraryContentParameter() const { return true; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return cmSystemTools::LowerCase(parameters.front()); } } lowerCaseNode; //---------------------------------------------------------------------------- static const struct UpperCaseNode : public cmGeneratorExpressionNode { UpperCaseNode() {} bool AcceptsArbitraryContentParameter() const { return true; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return cmSystemTools::UpperCase(parameters.front()); } } upperCaseNode; //---------------------------------------------------------------------------- static const struct MakeCIdentifierNode : public cmGeneratorExpressionNode { MakeCIdentifierNode() {} bool AcceptsArbitraryContentParameter() const { return true; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return cmSystemTools::MakeCidentifier(parameters.front().c_str()); } } makeCIdentifierNode; //---------------------------------------------------------------------------- static const struct Angle_RNode : public cmGeneratorExpressionNode { Angle_RNode() {} virtual int NumExpectedParameters() const { return 0; } std::string Evaluate(const std::vector &, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return ">"; } } angle_rNode; //---------------------------------------------------------------------------- static const struct CommaNode : public cmGeneratorExpressionNode { CommaNode() {} virtual int NumExpectedParameters() const { return 0; } std::string Evaluate(const std::vector &, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return ","; } } commaNode; //---------------------------------------------------------------------------- static const struct SemicolonNode : public cmGeneratorExpressionNode { SemicolonNode() {} virtual int NumExpectedParameters() const { return 0; } std::string Evaluate(const std::vector &, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return ";"; } } semicolonNode; //---------------------------------------------------------------------------- struct CompilerIdNode : public cmGeneratorExpressionNode { CompilerIdNode() {} virtual int NumExpectedParameters() const { return OneOrZeroParameters; } std::string EvaluateWithLanguage(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *, const std::string &lang) const { const char *compilerId = context->Makefile ? context->Makefile->GetSafeDefinition(( "CMAKE_" + lang + "_COMPILER_ID").c_str()) : ""; if (parameters.size() == 0) { return compilerId ? compilerId : ""; } cmsys::RegularExpression compilerIdValidator; compilerIdValidator.compile("^[A-Za-z0-9_]*$"); if (!compilerIdValidator.find(parameters.begin()->c_str())) { reportError(context, content->GetOriginalExpression(), "Expression syntax not recognized."); return std::string(); } if (!compilerId) { return parameters.front().empty() ? "1" : "0"; } if (strcmp(parameters.begin()->c_str(), compilerId) == 0) { return "1"; } if (cmsysString_strcasecmp(parameters.begin()->c_str(), compilerId) == 0) { switch(context->Makefile->GetPolicyStatus(cmPolicies::CMP0044)) { case cmPolicies::WARN: { cmOStringStream e; e << context->Makefile->GetPolicies() ->GetPolicyWarning(cmPolicies::CMP0044); context->Makefile->GetCMakeInstance() ->IssueMessage(cmake::AUTHOR_WARNING, e.str().c_str(), context->Backtrace); } case cmPolicies::OLD: return "1"; case cmPolicies::NEW: case cmPolicies::REQUIRED_ALWAYS: case cmPolicies::REQUIRED_IF_USED: break; } } return "0"; } }; //---------------------------------------------------------------------------- static const struct CCompilerIdNode : public CompilerIdNode { CCompilerIdNode() {} std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *dagChecker) const { if (!context->HeadTarget) { reportError(context, content->GetOriginalExpression(), "$ may only be used with targets. It may not " "be used with add_custom_command."); return std::string(); } return this->EvaluateWithLanguage(parameters, context, content, dagChecker, "C"); } } cCompilerIdNode; //---------------------------------------------------------------------------- static const struct CXXCompilerIdNode : public CompilerIdNode { CXXCompilerIdNode() {} std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *dagChecker) const { if (!context->HeadTarget) { reportError(context, content->GetOriginalExpression(), "$ may only be used with targets. It may not " "be used with add_custom_command."); return std::string(); } return this->EvaluateWithLanguage(parameters, context, content, dagChecker, "CXX"); } } cxxCompilerIdNode; //---------------------------------------------------------------------------- struct CompilerVersionNode : public cmGeneratorExpressionNode { CompilerVersionNode() {} virtual int NumExpectedParameters() const { return OneOrZeroParameters; } std::string EvaluateWithLanguage(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *, const std::string &lang) const { const char *compilerVersion = context->Makefile ? context->Makefile->GetSafeDefinition(( "CMAKE_" + lang + "_COMPILER_VERSION").c_str()) : ""; if (parameters.size() == 0) { return compilerVersion ? compilerVersion : ""; } cmsys::RegularExpression compilerIdValidator; compilerIdValidator.compile("^[0-9\\.]*$"); if (!compilerIdValidator.find(parameters.begin()->c_str())) { reportError(context, content->GetOriginalExpression(), "Expression syntax not recognized."); return std::string(); } if (!compilerVersion) { return parameters.front().empty() ? "1" : "0"; } return cmSystemTools::VersionCompare(cmSystemTools::OP_EQUAL, parameters.begin()->c_str(), compilerVersion) ? "1" : "0"; } }; //---------------------------------------------------------------------------- static const struct CCompilerVersionNode : public CompilerVersionNode { CCompilerVersionNode() {} std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *dagChecker) const { if (!context->HeadTarget) { reportError(context, content->GetOriginalExpression(), "$ may only be used with targets. It may not " "be used with add_custom_command."); return std::string(); } return this->EvaluateWithLanguage(parameters, context, content, dagChecker, "C"); } } cCompilerVersionNode; //---------------------------------------------------------------------------- static const struct CxxCompilerVersionNode : public CompilerVersionNode { CxxCompilerVersionNode() {} std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *dagChecker) const { if (!context->HeadTarget) { reportError(context, content->GetOriginalExpression(), "$ may only be used with targets. It may " "not be used with add_custom_command."); return std::string(); } return this->EvaluateWithLanguage(parameters, context, content, dagChecker, "CXX"); } } cxxCompilerVersionNode; //---------------------------------------------------------------------------- struct PlatformIdNode : public cmGeneratorExpressionNode { PlatformIdNode() {} virtual int NumExpectedParameters() const { return OneOrZeroParameters; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { const char *platformId = context->Makefile ? context->Makefile->GetSafeDefinition( "CMAKE_SYSTEM_NAME") : ""; if (parameters.size() == 0) { return platformId ? platformId : ""; } if (!platformId) { return parameters.front().empty() ? "1" : "0"; } if (strcmp(parameters.begin()->c_str(), platformId) == 0) { return "1"; } return "0"; } } platformIdNode; //---------------------------------------------------------------------------- static const struct VersionGreaterNode : public cmGeneratorExpressionNode { VersionGreaterNode() {} virtual int NumExpectedParameters() const { return 2; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return cmSystemTools::VersionCompare(cmSystemTools::OP_GREATER, parameters.front().c_str(), parameters[1].c_str()) ? "1" : "0"; } } versionGreaterNode; //---------------------------------------------------------------------------- static const struct VersionLessNode : public cmGeneratorExpressionNode { VersionLessNode() {} virtual int NumExpectedParameters() const { return 2; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return cmSystemTools::VersionCompare(cmSystemTools::OP_LESS, parameters.front().c_str(), parameters[1].c_str()) ? "1" : "0"; } } versionLessNode; //---------------------------------------------------------------------------- static const struct VersionEqualNode : public cmGeneratorExpressionNode { VersionEqualNode() {} virtual int NumExpectedParameters() const { return 2; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return cmSystemTools::VersionCompare(cmSystemTools::OP_EQUAL, parameters.front().c_str(), parameters[1].c_str()) ? "1" : "0"; } } versionEqualNode; //---------------------------------------------------------------------------- static const struct LinkOnlyNode : public cmGeneratorExpressionNode { LinkOnlyNode() {} std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *dagChecker) const { if(!dagChecker->GetTransitivePropertiesOnly()) { return parameters.front(); } return ""; } } linkOnlyNode; //---------------------------------------------------------------------------- static const struct ConfigurationNode : public cmGeneratorExpressionNode { ConfigurationNode() {} virtual int NumExpectedParameters() const { return 0; } std::string Evaluate(const std::vector &, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { context->HadContextSensitiveCondition = true; return context->Config ? context->Config : ""; } } configurationNode; //---------------------------------------------------------------------------- static const struct ConfigurationTestNode : public cmGeneratorExpressionNode { ConfigurationTestNode() {} virtual int NumExpectedParameters() const { return OneOrZeroParameters; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *) const { if (parameters.empty()) { return configurationNode.Evaluate(parameters, context, content, 0); } cmsys::RegularExpression configValidator; configValidator.compile("^[A-Za-z0-9_]*$"); if (!configValidator.find(parameters.begin()->c_str())) { reportError(context, content->GetOriginalExpression(), "Expression syntax not recognized."); return std::string(); } context->HadContextSensitiveCondition = true; if (!context->Config) { return parameters.front().empty() ? "1" : "0"; } if (cmsysString_strcasecmp(parameters.begin()->c_str(), context->Config) == 0) { return "1"; } if (context->CurrentTarget && context->CurrentTarget->IsImported()) { const char* loc = 0; const char* imp = 0; std::string suffix; if (context->CurrentTarget->GetMappedConfig(context->Config, &loc, &imp, suffix)) { // This imported target has an appropriate location // for this (possibly mapped) config. // Check if there is a proper config mapping for the tested config. std::vector mappedConfigs; std::string mapProp = "MAP_IMPORTED_CONFIG_"; mapProp += cmSystemTools::UpperCase(context->Config); if(const char* mapValue = context->CurrentTarget->GetProperty(mapProp.c_str())) { cmSystemTools::ExpandListArgument(cmSystemTools::UpperCase(mapValue), mappedConfigs); return std::find(mappedConfigs.begin(), mappedConfigs.end(), cmSystemTools::UpperCase(parameters.front())) != mappedConfigs.end() ? "1" : "0"; } } } return "0"; } } configurationTestNode; static const struct JoinNode : public cmGeneratorExpressionNode { JoinNode() {} virtual int NumExpectedParameters() const { return 2; } virtual bool AcceptsArbitraryContentParameter() const { return true; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { std::string result; std::vector list; cmSystemTools::ExpandListArgument(parameters.front(), list); std::string sep; for(std::vector::const_iterator li = list.begin(); li != list.end(); ++li) { result += sep + *li; sep = parameters[1]; } return result; } } joinNode; #define TRANSITIVE_PROPERTY_NAME(PROPERTY) \ , "INTERFACE_" #PROPERTY //---------------------------------------------------------------------------- static const char* targetPropertyTransitiveWhitelist[] = { 0 CM_FOR_EACH_TRANSITIVE_PROPERTY_NAME(TRANSITIVE_PROPERTY_NAME) }; #undef TRANSITIVE_PROPERTY_NAME std::string getLinkedTargetsContent(const std::vector &targets, cmTarget const* target, cmTarget const* headTarget, cmGeneratorExpressionContext *context, cmGeneratorExpressionDAGChecker *dagChecker, const std::string &interfacePropertyName) { cmGeneratorExpression ge(context->Backtrace); std::string sep; std::string depString; for (std::vector::const_iterator it = targets.begin(); it != targets.end(); ++it) { if (*it == target) { // Broken code can have a target in its own link interface. // Don't follow such link interface entries so as not to create a // self-referencing loop. continue; } depString += sep + "$GetName() + "," + interfacePropertyName + ">"; sep = ";"; } cmsys::auto_ptr cge = ge.Parse(depString); std::string linkedTargetsContent = cge->Evaluate(context->Makefile, context->Config, context->Quiet, headTarget, target, dagChecker); if (cge->GetHadContextSensitiveCondition()) { context->HadContextSensitiveCondition = true; } return linkedTargetsContent; } std::string getLinkedTargetsContent(const std::vector &libraries, cmTarget const* target, cmTarget const* headTarget, cmGeneratorExpressionContext *context, cmGeneratorExpressionDAGChecker *dagChecker, const std::string &interfacePropertyName) { std::vector tgts; for (std::vector::const_iterator it = libraries.begin(); it != libraries.end(); ++it) { if (cmTarget *tgt = context->Makefile->FindTargetToUse(*it)) { tgts.push_back(tgt); } } return getLinkedTargetsContent(tgts, target, headTarget, context, dagChecker, interfacePropertyName); } //---------------------------------------------------------------------------- static const struct TargetPropertyNode : public cmGeneratorExpressionNode { TargetPropertyNode() {} // This node handles errors on parameter count itself. virtual int NumExpectedParameters() const { return OneOrMoreParameters; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *dagCheckerParent ) const { if (parameters.size() != 1 && parameters.size() != 2) { reportError(context, content->GetOriginalExpression(), "$ expression requires one or two parameters"); return std::string(); } cmsys::RegularExpression propertyNameValidator; propertyNameValidator.compile("^[A-Za-z0-9_]+$"); cmTarget const* target = context->HeadTarget; std::string propertyName = *parameters.begin(); if (!target && parameters.size() == 1) { reportError(context, content->GetOriginalExpression(), "$ may only be used with targets. It may not " "be used with add_custom_command. Specify the target to read a " "property from using the $ signature " "instead."); return std::string(); } if (parameters.size() == 2) { if (parameters.begin()->empty() && parameters[1].empty()) { reportError(context, content->GetOriginalExpression(), "$ expression requires a non-empty " "target name and property name."); return std::string(); } if (parameters.begin()->empty()) { reportError(context, content->GetOriginalExpression(), "$ expression requires a non-empty " "target name."); return std::string(); } std::string targetName = parameters.front(); propertyName = parameters[1]; if (!cmGeneratorExpression::IsValidTargetName(targetName)) { if (!propertyNameValidator.find(propertyName.c_str())) { ::reportError(context, content->GetOriginalExpression(), "Target name and property name not supported."); return std::string(); } ::reportError(context, content->GetOriginalExpression(), "Target name not supported."); return std::string(); } if(propertyName == "ALIASED_TARGET") { if(context->Makefile->IsAlias(targetName)) { if(cmTarget* tgt = context->Makefile->FindTargetToUse(targetName)) { return tgt->GetName(); } } return ""; } target = context->Makefile->FindTargetToUse(targetName); if (!target) { cmOStringStream e; e << "Target \"" << targetName << "\" not found."; reportError(context, content->GetOriginalExpression(), e.str()); return std::string(); } context->AllTargets.insert(target); } if (target == context->HeadTarget) { // Keep track of the properties seen while processing. // The evaluation of the LINK_LIBRARIES generator expressions // will check this to ensure that properties have one consistent // value for all evaluations. context->SeenTargetProperties.insert(propertyName); } if (propertyName.empty()) { reportError(context, content->GetOriginalExpression(), "$ expression requires a non-empty property " "name."); return std::string(); } if (!propertyNameValidator.find(propertyName.c_str())) { ::reportError(context, content->GetOriginalExpression(), "Property name not supported."); return std::string(); } assert(target); if (propertyName == "LINKER_LANGUAGE") { if (target->LinkLanguagePropagatesToDependents() && dagCheckerParent && dagCheckerParent->EvaluatingLinkLibraries()) { reportError(context, content->GetOriginalExpression(), "LINKER_LANGUAGE target property can not be used while evaluating " "link libraries for a static library"); return std::string(); } return target->GetLinkerLanguage(context->Config); } cmGeneratorExpressionDAGChecker dagChecker(context->Backtrace, target->GetName(), propertyName, content, dagCheckerParent); switch (dagChecker.Check()) { case cmGeneratorExpressionDAGChecker::SELF_REFERENCE: dagChecker.ReportError(context, content->GetOriginalExpression()); return std::string(); case cmGeneratorExpressionDAGChecker::CYCLIC_REFERENCE: // No error. We just skip cyclic references. return std::string(); case cmGeneratorExpressionDAGChecker::ALREADY_SEEN: for (size_t i = 1; i < cmArraySize(targetPropertyTransitiveWhitelist); ++i) { if (targetPropertyTransitiveWhitelist[i] == propertyName) { // No error. We're not going to find anything new here. return std::string(); } } case cmGeneratorExpressionDAGChecker::DAG: break; } const char *prop = target->GetProperty(propertyName.c_str()); if (dagCheckerParent) { if (dagCheckerParent->EvaluatingLinkLibraries()) { if(!prop) { return std::string(); } } else { #define ASSERT_TRANSITIVE_PROPERTY_METHOD(METHOD) \ dagCheckerParent->METHOD () || assert( CM_FOR_EACH_TRANSITIVE_PROPERTY_METHOD( ASSERT_TRANSITIVE_PROPERTY_METHOD) false); } #undef ASSERT_TRANSITIVE_PROPERTY_METHOD } std::string linkedTargetsContent; std::string interfacePropertyName; #define POPULATE_INTERFACE_PROPERTY_NAME(prop) \ if (propertyName == #prop || propertyName == "INTERFACE_" #prop) \ { \ interfacePropertyName = "INTERFACE_" #prop; \ } \ else CM_FOR_EACH_TRANSITIVE_PROPERTY_NAME(POPULATE_INTERFACE_PROPERTY_NAME) // Note that the above macro terminates with an else /* else */ if (cmHasLiteralPrefix(propertyName.c_str(), "COMPILE_DEFINITIONS_")) { cmPolicies::PolicyStatus polSt = context->Makefile->GetPolicyStatus(cmPolicies::CMP0043); if (polSt == cmPolicies::WARN || polSt == cmPolicies::OLD) { interfacePropertyName = "INTERFACE_COMPILE_DEFINITIONS"; } } #undef POPULATE_INTERFACE_PROPERTY_NAME cmTarget const* headTarget = context->HeadTarget ? context->HeadTarget : target; const char * const *transBegin = cmArrayBegin(targetPropertyTransitiveWhitelist) + 1; const char * const *transEnd = cmArrayEnd(targetPropertyTransitiveWhitelist); if (std::find_if(transBegin, transEnd, cmStrCmp(propertyName)) != transEnd) { std::vector tgts; target->GetTransitivePropertyTargets(context->Config, headTarget, tgts); if (!tgts.empty()) { linkedTargetsContent = getLinkedTargetsContent(tgts, target, headTarget, context, &dagChecker, interfacePropertyName); } } else if (std::find_if(transBegin, transEnd, cmStrCmp(interfacePropertyName)) != transEnd) { const cmTarget::LinkImplementation *impl = target->GetLinkImplementationLibraries(context->Config, headTarget); if(impl) { linkedTargetsContent = getLinkedTargetsContent(impl->Libraries, target, headTarget, context, &dagChecker, interfacePropertyName); } } linkedTargetsContent = cmGeneratorExpression::StripEmptyListElements(linkedTargetsContent); if (!prop) { if (target->IsImported() || target->GetType() == cmTarget::INTERFACE_LIBRARY) { return linkedTargetsContent; } if (target->IsLinkInterfaceDependentBoolProperty(propertyName, context->Config)) { context->HadContextSensitiveCondition = true; return target->GetLinkInterfaceDependentBoolProperty( propertyName, context->Config) ? "1" : "0"; } if (target->IsLinkInterfaceDependentStringProperty(propertyName, context->Config)) { context->HadContextSensitiveCondition = true; const char *propContent = target->GetLinkInterfaceDependentStringProperty( propertyName, context->Config); return propContent ? propContent : ""; } if (target->IsLinkInterfaceDependentNumberMinProperty(propertyName, context->Config)) { context->HadContextSensitiveCondition = true; const char *propContent = target->GetLinkInterfaceDependentNumberMinProperty( propertyName, context->Config); return propContent ? propContent : ""; } if (target->IsLinkInterfaceDependentNumberMaxProperty(propertyName, context->Config)) { context->HadContextSensitiveCondition = true; const char *propContent = target->GetLinkInterfaceDependentNumberMaxProperty( propertyName, context->Config); return propContent ? propContent : ""; } return linkedTargetsContent; } if (!target->IsImported() && dagCheckerParent && !dagCheckerParent->EvaluatingLinkLibraries()) { if (target->IsLinkInterfaceDependentNumberMinProperty(propertyName, context->Config)) { context->HadContextSensitiveCondition = true; const char *propContent = target->GetLinkInterfaceDependentNumberMinProperty( propertyName, context->Config); return propContent ? propContent : ""; } if (target->IsLinkInterfaceDependentNumberMaxProperty(propertyName, context->Config)) { context->HadContextSensitiveCondition = true; const char *propContent = target->GetLinkInterfaceDependentNumberMaxProperty( propertyName, context->Config); return propContent ? propContent : ""; } } for (size_t i = 1; i < cmArraySize(targetPropertyTransitiveWhitelist); ++i) { if (targetPropertyTransitiveWhitelist[i] == interfacePropertyName) { cmGeneratorExpression ge(context->Backtrace); cmsys::auto_ptr cge = ge.Parse(prop); std::string result = cge->Evaluate(context->Makefile, context->Config, context->Quiet, headTarget, target, &dagChecker); if (cge->GetHadContextSensitiveCondition()) { context->HadContextSensitiveCondition = true; } if (!linkedTargetsContent.empty()) { result += (result.empty() ? "" : ";") + linkedTargetsContent; } return result; } } return prop; } } targetPropertyNode; //---------------------------------------------------------------------------- static const struct TargetNameNode : public cmGeneratorExpressionNode { TargetNameNode() {} virtual bool GeneratesContent() const { return true; } virtual bool AcceptsArbitraryContentParameter() const { return true; } virtual bool RequiresLiteralInput() const { return true; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *, const GeneratorExpressionContent *, cmGeneratorExpressionDAGChecker *) const { return parameters.front(); } virtual int NumExpectedParameters() const { return 1; } } targetNameNode; //---------------------------------------------------------------------------- static const char* targetPolicyWhitelist[] = { 0 #define TARGET_POLICY_STRING(POLICY) \ , #POLICY CM_FOR_EACH_TARGET_POLICY(TARGET_POLICY_STRING) #undef TARGET_POLICY_STRING }; cmPolicies::PolicyStatus statusForTarget(cmTarget const* tgt, const char *policy) { #define RETURN_POLICY(POLICY) \ if (strcmp(policy, #POLICY) == 0) \ { \ return tgt->GetPolicyStatus ## POLICY (); \ } \ CM_FOR_EACH_TARGET_POLICY(RETURN_POLICY) #undef RETURN_POLICY assert("!Unreachable code. Not a valid policy"); return cmPolicies::WARN; } cmPolicies::PolicyID policyForString(const char *policy_id) { #define RETURN_POLICY_ID(POLICY_ID) \ if (strcmp(policy_id, #POLICY_ID) == 0) \ { \ return cmPolicies:: POLICY_ID; \ } \ CM_FOR_EACH_TARGET_POLICY(RETURN_POLICY_ID) #undef RETURN_POLICY_ID assert("!Unreachable code. Not a valid policy"); return cmPolicies::CMP0002; } //---------------------------------------------------------------------------- static const struct TargetPolicyNode : public cmGeneratorExpressionNode { TargetPolicyNode() {} virtual int NumExpectedParameters() const { return 1; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context , const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *) const { if (!context->HeadTarget) { reportError(context, content->GetOriginalExpression(), "$ may only be used with targets. It may not " "be used with add_custom_command."); return std::string(); } context->HadContextSensitiveCondition = true; for (size_t i = 1; i < cmArraySize(targetPolicyWhitelist); ++i) { const char *policy = targetPolicyWhitelist[i]; if (parameters.front() == policy) { cmMakefile *mf = context->HeadTarget->GetMakefile(); switch(statusForTarget(context->HeadTarget, policy)) { case cmPolicies::WARN: mf->IssueMessage(cmake::AUTHOR_WARNING, mf->GetPolicies()-> GetPolicyWarning(policyForString(policy))); case cmPolicies::REQUIRED_IF_USED: case cmPolicies::REQUIRED_ALWAYS: case cmPolicies::OLD: return "0"; case cmPolicies::NEW: return "1"; } } } reportError(context, content->GetOriginalExpression(), "$ may only be used with a limited number of " "policies. Currently it may be used with the following policies:\n" #define STRINGIFY_HELPER(X) #X #define STRINGIFY(X) STRINGIFY_HELPER(X) #define TARGET_POLICY_LIST_ITEM(POLICY) \ " * " STRINGIFY(POLICY) "\n" CM_FOR_EACH_TARGET_POLICY(TARGET_POLICY_LIST_ITEM) #undef TARGET_POLICY_LIST_ITEM ); return std::string(); } } targetPolicyNode; //---------------------------------------------------------------------------- static const struct InstallPrefixNode : public cmGeneratorExpressionNode { InstallPrefixNode() {} virtual bool GeneratesContent() const { return true; } virtual int NumExpectedParameters() const { return 0; } std::string Evaluate(const std::vector &, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *) const { reportError(context, content->GetOriginalExpression(), "INSTALL_PREFIX is a marker for install(EXPORT) only. It " "should never be evaluated."); return std::string(); } } installPrefixNode; //---------------------------------------------------------------------------- template struct TargetFilesystemArtifactResultCreator { static std::string Create(cmTarget* target, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content); }; //---------------------------------------------------------------------------- template<> struct TargetFilesystemArtifactResultCreator { static std::string Create(cmTarget* target, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content) { // The target soname file (.so.1). if(target->IsDLLPlatform()) { ::reportError(context, content->GetOriginalExpression(), "TARGET_SONAME_FILE is not allowed " "for DLL target platforms."); return std::string(); } if(target->GetType() != cmTarget::SHARED_LIBRARY) { ::reportError(context, content->GetOriginalExpression(), "TARGET_SONAME_FILE is allowed only for " "SHARED libraries."); return std::string(); } std::string result = target->GetDirectory(context->Config); result += "/"; result += target->GetSOName(context->Config); return result; } }; //---------------------------------------------------------------------------- template<> struct TargetFilesystemArtifactResultCreator { static std::string Create(cmTarget* target, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content) { // The file used to link to the target (.so, .lib, .a). if(!target->IsLinkable()) { ::reportError(context, content->GetOriginalExpression(), "TARGET_LINKER_FILE is allowed only for libraries and " "executables with ENABLE_EXPORTS."); return std::string(); } return target->GetFullPath(context->Config, target->HasImportLibrary()); } }; //---------------------------------------------------------------------------- template<> struct TargetFilesystemArtifactResultCreator { static std::string Create(cmTarget* target, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *) { return target->GetFullPath(context->Config, false, true); } }; //---------------------------------------------------------------------------- template struct TargetFilesystemArtifactResultGetter { static std::string Get(const std::string &result); }; //---------------------------------------------------------------------------- template<> struct TargetFilesystemArtifactResultGetter { static std::string Get(const std::string &result) { return cmSystemTools::GetFilenameName(result); } }; //---------------------------------------------------------------------------- template<> struct TargetFilesystemArtifactResultGetter { static std::string Get(const std::string &result) { return cmSystemTools::GetFilenamePath(result); } }; //---------------------------------------------------------------------------- template<> struct TargetFilesystemArtifactResultGetter { static std::string Get(const std::string &result) { return result; } }; //---------------------------------------------------------------------------- template struct TargetFilesystemArtifact : public cmGeneratorExpressionNode { TargetFilesystemArtifact() {} virtual int NumExpectedParameters() const { return 1; } std::string Evaluate(const std::vector ¶meters, cmGeneratorExpressionContext *context, const GeneratorExpressionContent *content, cmGeneratorExpressionDAGChecker *dagChecker) const { // Lookup the referenced target. std::string name = *parameters.begin(); if (!cmGeneratorExpression::IsValidTargetName(name)) { ::reportError(context, content->GetOriginalExpression(), "Expression syntax not recognized."); return std::string(); } cmTarget* target = context->Makefile->FindTargetToUse(name); if(!target) { ::reportError(context, content->GetOriginalExpression(), "No target \"" + name + "\""); return std::string(); } if(target->GetType() >= cmTarget::OBJECT_LIBRARY && target->GetType() != cmTarget::UNKNOWN_LIBRARY) { ::reportError(context, content->GetOriginalExpression(), "Target \"" + name + "\" is not an executable or library."); return std::string(); } if (dagChecker && dagChecker->EvaluatingLinkLibraries(name.c_str())) { ::reportError(context, content->GetOriginalExpression(), "Expressions which require the linker language may not " "be used while evaluating link libraries"); return std::string(); } context->DependTargets.insert(target); context->AllTargets.insert(target); std::string result = TargetFilesystemArtifactResultCreator::Create( target, context, content); if (context->HadError) { return std::string(); } return TargetFilesystemArtifactResultGetter::Get(result); } }; //---------------------------------------------------------------------------- static const TargetFilesystemArtifact targetFileNode; static const TargetFilesystemArtifact targetLinkerFileNode; static const TargetFilesystemArtifact targetSoNameFileNode; static const TargetFilesystemArtifact targetFileNameNode; static const TargetFilesystemArtifact targetLinkerFileNameNode; static const TargetFilesystemArtifact targetSoNameFileNameNode; static const TargetFilesystemArtifact targetFileDirNode; static const TargetFilesystemArtifact targetLinkerFileDirNode; static const TargetFilesystemArtifact targetSoNameFileDirNode; //---------------------------------------------------------------------------- static const cmGeneratorExpressionNode* GetNode(const std::string &identifier) { typedef std::map NodeMap; static NodeMap nodeMap; if (nodeMap.empty()) { nodeMap["0"] = &zeroNode; nodeMap["1"] = &oneNode; nodeMap["AND"] = &andNode; nodeMap["OR"] = &orNode; nodeMap["NOT"] = ¬Node; nodeMap["C_COMPILER_ID"] = &cCompilerIdNode; nodeMap["CXX_COMPILER_ID"] = &cxxCompilerIdNode; nodeMap["VERSION_GREATER"] = &versionGreaterNode; nodeMap["VERSION_LESS"] = &versionLessNode; nodeMap["VERSION_EQUAL"] = &versionEqualNode; nodeMap["C_COMPILER_VERSION"] = &cCompilerVersionNode; nodeMap["CXX_COMPILER_VERSION"] = &cxxCompilerVersionNode; nodeMap["PLATFORM_ID"] = &platformIdNode; nodeMap["CONFIGURATION"] = &configurationNode; nodeMap["CONFIG"] = &configurationTestNode; nodeMap["TARGET_FILE"] = &targetFileNode; nodeMap["TARGET_LINKER_FILE"] = &targetLinkerFileNode; nodeMap["TARGET_SONAME_FILE"] = &targetSoNameFileNode; nodeMap["TARGET_FILE_NAME"] = &targetFileNameNode; nodeMap["TARGET_LINKER_FILE_NAME"] = &targetLinkerFileNameNode; nodeMap["TARGET_SONAME_FILE_NAME"] = &targetSoNameFileNameNode; nodeMap["TARGET_FILE_DIR"] = &targetFileDirNode; nodeMap["TARGET_LINKER_FILE_DIR"] = &targetLinkerFileDirNode; nodeMap["TARGET_SONAME_FILE_DIR"] = &targetSoNameFileDirNode; nodeMap["STREQUAL"] = &strEqualNode; nodeMap["EQUAL"] = &equalNode; nodeMap["LOWER_CASE"] = &lowerCaseNode; nodeMap["UPPER_CASE"] = &upperCaseNode; nodeMap["MAKE_C_IDENTIFIER"] = &makeCIdentifierNode; nodeMap["BOOL"] = &boolNode; nodeMap["ANGLE-R"] = &angle_rNode; nodeMap["COMMA"] = &commaNode; nodeMap["SEMICOLON"] = &semicolonNode; nodeMap["TARGET_PROPERTY"] = &targetPropertyNode; nodeMap["TARGET_NAME"] = &targetNameNode; nodeMap["TARGET_POLICY"] = &targetPolicyNode; nodeMap["BUILD_INTERFACE"] = &buildInterfaceNode; nodeMap["INSTALL_INTERFACE"] = &installInterfaceNode; nodeMap["INSTALL_PREFIX"] = &installPrefixNode; nodeMap["JOIN"] = &joinNode; nodeMap["LINK_ONLY"] = &linkOnlyNode; } NodeMap::const_iterator i = nodeMap.find(identifier); if (i == nodeMap.end()) { return 0; } return i->second; } //---------------------------------------------------------------------------- GeneratorExpressionContent::GeneratorExpressionContent( const char *startContent, size_t length) : StartContent(startContent), ContentLength(length) { } //---------------------------------------------------------------------------- std::string GeneratorExpressionContent::GetOriginalExpression() const { return std::string(this->StartContent, this->ContentLength); } //---------------------------------------------------------------------------- std::string GeneratorExpressionContent::ProcessArbitraryContent( const cmGeneratorExpressionNode *node, const std::string &identifier, cmGeneratorExpressionContext *context, cmGeneratorExpressionDAGChecker *dagChecker, std::vector >::const_iterator pit) const { std::string result; const std::vector >::const_iterator pend = this->ParamChildren.end(); for ( ; pit != pend; ++pit) { std::vector::const_iterator it = pit->begin(); const std::vector::const_iterator end = pit->end(); for ( ; it != end; ++it) { if (node->RequiresLiteralInput()) { if ((*it)->GetType() != cmGeneratorExpressionEvaluator::Text) { reportError(context, this->GetOriginalExpression(), "$<" + identifier + "> expression requires literal input."); return std::string(); } } result += (*it)->Evaluate(context, dagChecker); if (context->HadError) { return std::string(); } } if ((pit + 1) != pend) { result += ","; } } if (node->RequiresLiteralInput()) { std::vector parameters; parameters.push_back(result); return node->Evaluate(parameters, context, this, dagChecker); } return result; } //---------------------------------------------------------------------------- std::string GeneratorExpressionContent::Evaluate( cmGeneratorExpressionContext *context, cmGeneratorExpressionDAGChecker *dagChecker) const { std::string identifier; { std::vector::const_iterator it = this->IdentifierChildren.begin(); const std::vector::const_iterator end = this->IdentifierChildren.end(); for ( ; it != end; ++it) { identifier += (*it)->Evaluate(context, dagChecker); if (context->HadError) { return std::string(); } } } const cmGeneratorExpressionNode *node = GetNode(identifier); if (!node) { reportError(context, this->GetOriginalExpression(), "Expression did not evaluate to a known generator expression"); return std::string(); } if (!node->GeneratesContent()) { if (node->NumExpectedParameters() == 1 && node->AcceptsArbitraryContentParameter()) { if (this->ParamChildren.empty()) { reportError(context, this->GetOriginalExpression(), "$<" + identifier + "> expression requires a parameter."); } } else { std::vector parameters; this->EvaluateParameters(node, identifier, context, dagChecker, parameters); } return std::string(); } std::vector parameters; this->EvaluateParameters(node, identifier, context, dagChecker, parameters); if (context->HadError) { return std::string(); } return node->Evaluate(parameters, context, this, dagChecker); } //---------------------------------------------------------------------------- std::string GeneratorExpressionContent::EvaluateParameters( const cmGeneratorExpressionNode *node, const std::string &identifier, cmGeneratorExpressionContext *context, cmGeneratorExpressionDAGChecker *dagChecker, std::vector ¶meters) const { const int numExpected = node->NumExpectedParameters(); { std::vector >::const_iterator pit = this->ParamChildren.begin(); const std::vector >::const_iterator pend = this->ParamChildren.end(); const bool acceptsArbitraryContent = node->AcceptsArbitraryContentParameter(); int counter = 1; for ( ; pit != pend; ++pit, ++counter) { if (acceptsArbitraryContent && counter == numExpected) { std::string lastParam = this->ProcessArbitraryContent(node, identifier, context, dagChecker, pit); parameters.push_back(lastParam); return std::string(); } else { std::string parameter; std::vector::const_iterator it = pit->begin(); const std::vector::const_iterator end = pit->end(); for ( ; it != end; ++it) { parameter += (*it)->Evaluate(context, dagChecker); if (context->HadError) { return std::string(); } } parameters.push_back(parameter); } } } if ((numExpected > cmGeneratorExpressionNode::DynamicParameters && (unsigned int)numExpected != parameters.size())) { if (numExpected == 0) { reportError(context, this->GetOriginalExpression(), "$<" + identifier + "> expression requires no parameters."); } else if (numExpected == 1) { reportError(context, this->GetOriginalExpression(), "$<" + identifier + "> expression requires " "exactly one parameter."); } else { cmOStringStream e; e << "$<" + identifier + "> expression requires " << numExpected << " comma separated parameters, but got " << parameters.size() << " instead."; reportError(context, this->GetOriginalExpression(), e.str()); } return std::string(); } if (numExpected == cmGeneratorExpressionNode::OneOrMoreParameters && parameters.empty()) { reportError(context, this->GetOriginalExpression(), "$<" + identifier + "> expression requires at least one parameter."); } if (numExpected == cmGeneratorExpressionNode::OneOrZeroParameters && parameters.size() > 1) { reportError(context, this->GetOriginalExpression(), "$<" + identifier + "> expression requires one or zero parameters."); } return std::string(); } //---------------------------------------------------------------------------- static void deleteAll(const std::vector &c) { std::vector::const_iterator it = c.begin(); const std::vector::const_iterator end = c.end(); for ( ; it != end; ++it) { delete *it; } } //---------------------------------------------------------------------------- GeneratorExpressionContent::~GeneratorExpressionContent() { deleteAll(this->IdentifierChildren); typedef std::vector EvaluatorVector; std::vector::const_iterator pit = this->ParamChildren.begin(); const std::vector::const_iterator pend = this->ParamChildren.end(); for ( ; pit != pend; ++pit) { deleteAll(*pit); } }