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Diffstat (limited to 'Source/cmGeneratorExpressionDAGChecker.cxx')
| -rw-r--r-- | Source/cmGeneratorExpressionDAGChecker.cxx | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/Source/cmGeneratorExpressionDAGChecker.cxx b/Source/cmGeneratorExpressionDAGChecker.cxx new file mode 100644 index 0000000..e5ffb0c --- /dev/null +++ b/Source/cmGeneratorExpressionDAGChecker.cxx @@ -0,0 +1,178 @@ +/*============================================================================ + CMake - Cross Platform Makefile Generator + Copyright 2012 Stephen Kelly <steveire@gmail.com> + + 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 "cmGeneratorExpressionDAGChecker.h" + +#include "cmMakefile.h" + +//---------------------------------------------------------------------------- +cmGeneratorExpressionDAGChecker::cmGeneratorExpressionDAGChecker( + const cmListFileBacktrace &backtrace, + const std::string &target, + const std::string &property, + const GeneratorExpressionContent *content, + cmGeneratorExpressionDAGChecker *parent) + : Parent(parent), Target(target), Property(property), + Content(content), Backtrace(backtrace) +{ + const cmGeneratorExpressionDAGChecker *top = this; + const cmGeneratorExpressionDAGChecker *p = this->Parent; + while (p) + { + top = p; + p = p->Parent; + } + this->CheckResult = this->checkGraph(); + + if (CheckResult == DAG && (top->EvaluatingIncludeDirectories() + || top->EvaluatingCompileDefinitions())) + { + std::map<cmStdString, std::set<cmStdString> >::const_iterator it + = top->Seen.find(target); + if (it != top->Seen.end()) + { + const std::set<cmStdString> &propSet = it->second; + const std::set<cmStdString>::const_iterator i = propSet.find(property); + if (i != propSet.end()) + { + this->CheckResult = ALREADY_SEEN; + return; + } + } + const_cast<cmGeneratorExpressionDAGChecker *>(top) + ->Seen[target].insert(property); + } +} + +//---------------------------------------------------------------------------- +cmGeneratorExpressionDAGChecker::Result +cmGeneratorExpressionDAGChecker::check() const +{ + return this->CheckResult; +} + +//---------------------------------------------------------------------------- +void cmGeneratorExpressionDAGChecker::reportError( + cmGeneratorExpressionContext *context, + const std::string &expr) +{ + if (this->CheckResult == DAG) + { + return; + } + + context->HadError = true; + if (context->Quiet) + { + return; + } + + const cmGeneratorExpressionDAGChecker *parent = this->Parent; + + if (parent && !parent->Parent) + { + cmOStringStream e; + e << "Error evaluating generator expression:\n" + << " " << expr << "\n" + << "Self reference on target \"" + << context->HeadTarget->GetName() << "\".\n"; + context->Makefile->GetCMakeInstance() + ->IssueMessage(cmake::FATAL_ERROR, e.str().c_str(), + parent->Backtrace); + return; + } + + { + cmOStringStream e; + e << "Error evaluating generator expression:\n" + << " " << expr << "\n" + << "Dependency loop found."; + context->Makefile->GetCMakeInstance() + ->IssueMessage(cmake::FATAL_ERROR, e.str().c_str(), + context->Backtrace); + } + + int loopStep = 1; + while (parent) + { + cmOStringStream e; + e << "Loop step " << loopStep << "\n" + << " " + << (parent->Content ? parent->Content->GetOriginalExpression() : expr) + << "\n"; + context->Makefile->GetCMakeInstance() + ->IssueMessage(cmake::FATAL_ERROR, e.str().c_str(), + parent->Backtrace); + parent = parent->Parent; + ++loopStep; + } +} + +//---------------------------------------------------------------------------- +cmGeneratorExpressionDAGChecker::Result +cmGeneratorExpressionDAGChecker::checkGraph() const +{ + const cmGeneratorExpressionDAGChecker *parent = this->Parent; + while (parent) + { + if (this->Target == parent->Target && this->Property == parent->Property) + { + return (parent == this->Parent) ? SELF_REFERENCE : CYCLIC_REFERENCE; + } + parent = parent->Parent; + } + return DAG; +} + +//---------------------------------------------------------------------------- +bool cmGeneratorExpressionDAGChecker::EvaluatingLinkLibraries() +{ + const cmGeneratorExpressionDAGChecker *top = this; + const cmGeneratorExpressionDAGChecker *parent = this->Parent; + while (parent) + { + top = parent; + parent = parent->Parent; + } + + const char *prop = top->Property.c_str(); + return (strcmp(prop, "LINK_LIBRARIES") == 0 + || strcmp(prop, "LINK_INTERFACE_LIBRARIES") == 0 + || strcmp(prop, "IMPORTED_LINK_INTERFACE_LIBRARIES") == 0 + || strncmp(prop, "LINK_INTERFACE_LIBRARIES_", 25) == 0 + || strncmp(prop, "IMPORTED_LINK_INTERFACE_LIBRARIES_", 34) == 0); +} + +//---------------------------------------------------------------------------- +bool cmGeneratorExpressionDAGChecker::EvaluatingIncludeDirectories() const +{ + const char *prop = this->Property.c_str(); + return (strcmp(prop, "INCLUDE_DIRECTORIES") == 0 + || strcmp(prop, "INTERFACE_INCLUDE_DIRECTORIES") == 0 ); +} + +//---------------------------------------------------------------------------- +bool cmGeneratorExpressionDAGChecker::EvaluatingCompileDefinitions() const +{ + const char *prop = this->Property.c_str(); + return (strcmp(prop, "COMPILE_DEFINITIONS") == 0 + || strcmp(prop, "INTERFACE_COMPILE_DEFINITIONS") == 0 + || strncmp(prop, "COMPILE_DEFINITIONS_", 20) == 0); +} + +//---------------------------------------------------------------------------- +bool cmGeneratorExpressionDAGChecker::EvaluatingCompileOptions() const +{ + const char *prop = this->Property.c_str(); + return (strcmp(prop, "COMPILE_OPTIONS") == 0 + || strcmp(prop, "INTERFACE_COMPILE_OPTIONS") == 0 ); +} |