Blueprint for Language Specs System
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Blueprint for language specs system
Current ModelManagerInterface::ProjectPart has following problems:
* Pure C can be set only for whole ProjectPart. Objective C headers and objective C++ headers/sources cannot be set.
* C++ language extensions not handled.
* Project managers for autotools and cmake assume that any file is C++ source
* ProjectManager can use only C++ flags and must ignore C/ObjC/ObjC++ flags.
* QMake project manager doesn't read OBJECTIVE_HEADERS variable
How clang can handle different languages:
- Clang supports 4 languages: C, C+, ObjectiveC and ObjectiveC. Each language has headers and implementation files. Like in such code:
<br />QStringList ClangCodeModel::Utils::clangLanguageOption(bool cxxEnabled,<br /> bool isHeader,<br /> bool isObjC)<br />{<br /> QStringList opts;<br /> opts''= QLatin1String("-x&quot;); if (cxxEnabled && isHeader && isObjC)<br /> opts ''= QLatin1String("objective-c-header&quot;);<br /> else if (!cxxEnabled && isHeader && isObjC)<br /> opts''= QLatin1String("objective-c-header&quot;);<br /> else if (cxxEnabled && !isHeader && isObjC)<br /> opts ''= QLatin1String("objective-c");<br /> else if ([[Image:cxxEnabled && |cxxEnabled && ]]isHeader && isObjC)<br /> opts''= QLatin1String("objective-c&quot;);<br /> else if (cxxEnabled && isHeader && !isObjC)<br /> opts ''= QLatin1String("c-header&quot;);<br /> else if ([[Image:cxxEnabled && isHeader && |cxxEnabled && isHeader && ]]isObjC)<br /> opts''= QLatin1String("c-header&quot;);<br /> else if (cxxEnabled && [[Image:isHeader && |isHeader && ]]isObjC)<br /> opts ''= QLatin1String("c");<br /> else // [[Image:cxxEnabled && |cxxEnabled && ]]isHeader && !isObjC<br /> opts''= QLatin1String("c&quot;); return opts;<br />}<br />
* If file directly included to project, than it language and isHeader flag can be determined by each project manager plugin. Otherwise, we can use dependency table and assume that <iostream> file is "c+-header", because it included only by C+ files. (sergey shambir: I don't know how to handle inclusion from both C++ and ObjectiveC++ files. Probably it should have type of file from which it was opened in editor).
* Each language can have extensions: GNU, Microsoft and Borland. Only one extensions group used.
* Each language can have own set of flags, at least in QMAKE