149 lines
4.3 KiB
C++
149 lines
4.3 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmListFileCache_h
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#define cmListFileCache_h
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#include "cmStandardIncludes.h"
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#include "cmState.h"
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/** \class cmListFileCache
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* \brief A class to cache list file contents.
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*
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* cmListFileCache is a class used to cache the contents of parsed
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* cmake list files.
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*/
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class cmMakefile;
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struct cmCommandContext
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{
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std::string Name;
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long Line;
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cmCommandContext(): Name(), Line(0) {}
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};
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struct cmListFileArgument
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{
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enum Delimiter
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{
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Unquoted,
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Quoted,
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Bracket
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};
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cmListFileArgument(): Value(), Delim(Unquoted), Line(0) {}
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cmListFileArgument(const cmListFileArgument& r)
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: Value(r.Value), Delim(r.Delim), Line(r.Line) {}
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cmListFileArgument(const std::string& v, Delimiter d, long line)
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: Value(v), Delim(d), Line(line) {}
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bool operator == (const cmListFileArgument& r) const
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{
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return (this->Value == r.Value) && (this->Delim == r.Delim);
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}
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bool operator != (const cmListFileArgument& r) const
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{
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return !(*this == r);
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}
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std::string Value;
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Delimiter Delim;
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long Line;
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};
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class cmListFileContext
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{
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public:
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std::string Name;
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std::string FilePath;
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long Line;
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cmListFileContext(): Name(), FilePath(), Line(0) {}
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static cmListFileContext FromCommandContext(cmCommandContext const& lfcc,
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std::string const& fileName)
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{
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cmListFileContext lfc;
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lfc.FilePath = fileName;
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lfc.Line = lfcc.Line;
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lfc.Name = lfcc.Name;
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return lfc;
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}
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};
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std::ostream& operator<<(std::ostream&, cmListFileContext const&);
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bool operator<(const cmListFileContext& lhs, const cmListFileContext& rhs);
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bool operator==(cmListFileContext const& lhs, cmListFileContext const& rhs);
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bool operator!=(cmListFileContext const& lhs, cmListFileContext const& rhs);
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struct cmListFileFunction: public cmCommandContext
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{
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std::vector<cmListFileArgument> Arguments;
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};
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// Represent a backtrace (call stack). Provide value semantics
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// but use efficient reference-counting underneath to avoid copies.
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class cmListFileBacktrace
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{
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public:
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// Default-constructed backtrace may not be used until after
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// set via assignment from a backtrace constructed with a
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// valid snapshot.
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cmListFileBacktrace();
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// Construct an empty backtrace whose bottom sits in the directory
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// indicated by the given valid snapshot.
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cmListFileBacktrace(cmState::Snapshot snapshot);
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// Backtraces may be copied and assigned as values.
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cmListFileBacktrace(cmListFileBacktrace const& r);
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cmListFileBacktrace& operator=(cmListFileBacktrace const& r);
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~cmListFileBacktrace();
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// Get a backtrace with the given file scope added to the top.
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// May not be called until after construction with a valid snapshot.
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cmListFileBacktrace Push(std::string const& file) const;
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// Get a backtrace with the given call context added to the top.
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// May not be called until after construction with a valid snapshot.
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cmListFileBacktrace Push(cmListFileContext const& lfc) const;
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// Get a backtrace with the top level removed.
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// May not be called until after a matching Push.
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cmListFileBacktrace Pop() const;
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// Get the context at the top of the backtrace.
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// Returns an empty context if the backtrace is empty.
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cmListFileContext const& Top() const;
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// Print the top of the backtrace.
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void PrintTitle(std::ostream& out) const;
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// Print the call stack below the top of the backtrace.
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void PrintCallStack(std::ostream& out) const;
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private:
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struct Entry;
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cmState::Snapshot Bottom;
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Entry* Cur;
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cmListFileBacktrace(cmState::Snapshot bottom, Entry* up,
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cmListFileContext const& lfc);
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cmListFileBacktrace(cmState::Snapshot bottom, Entry* cur);
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};
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struct cmListFile
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{
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bool ParseFile(const char* path,
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bool topLevel,
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cmMakefile *mf);
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std::vector<cmListFileFunction> Functions;
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};
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#endif
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