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[clang][DependencyScanning] Add API to expose module CompilerInvocation #10667

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[clang][DependencyScanning] Add API to expose module CompilerInvocation #10667

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5 changes: 5 additions & 0 deletions clang/include/clang/Tooling/DependencyScanning/ModuleDepCollector.h
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Original file line number Diff line number Diff line change
Expand Up @@ -183,6 +183,11 @@ struct ModuleDeps {
/// module. Does not include argv[0].
const std::vector<std::string> &getBuildArguments() const;

/// Experimental: get the underlying CompilerInvocation before calling
/// `getBuildArguments`. This provides a short cut to inspect/modify the
/// compiler invocation state before turning into build command.
CowCompilerInvocation &getUnderlyingCompilerInvocation() const;

private:
friend class ModuleDepCollector;
friend class ModuleDepCollectorPP;
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6 changes: 6 additions & 0 deletions clang/lib/Tooling/DependencyScanning/ModuleDepCollector.cpp
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Expand Up @@ -46,6 +46,12 @@ const std::vector<std::string> &ModuleDeps::getBuildArguments() const {
return std::get<std::vector<std::string>>(BuildInfo);
}

CowCompilerInvocation &ModuleDeps::getUnderlyingCompilerInvocation() const {
assert(std::holds_alternative<CowCompilerInvocation>(BuildInfo) &&
"ModuleDeps doesn't hold compiler invocation");
return *std::get_if<CowCompilerInvocation>(&BuildInfo);
}

static void
optimizeHeaderSearchOpts(HeaderSearchOptions &Opts, ASTReader &Reader,
const serialization::ModuleFile &MF,
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