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[Dependency Scanner] Add import-prescan handling to batch scanning

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This commit is contained in:
Artem Chikin
2020-09-22 11:32:09 -07:00
parent e0dbba569b
commit d5449bf55f
2 changed files with 30 additions and 2 deletions
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10
lib/FrontendTool/ScanDependencies.cpp
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@@ -659,6 +659,8 @@ static bool scanModuleDependencies(CompilerInstance &instance,
FEOpts.PrebuiltModuleCachePath,
FEOpts.SerializeModuleInterfaceDependencyHashes,
FEOpts.shouldTrackSystemDependencies());
std::error_code EC;
llvm::raw_fd_ostream out(outputPath, EC, llvm::sys::fs::F_None);
Optional<ModuleDependencies> rootDeps;
if (isClang) {
// Loading the clang module using Clang importer.
@@ -677,6 +679,12 @@ static bool scanModuleDependencies(CompilerInstance &instance,
allModules.insert({moduleName.str(), isClang ? ModuleDependenciesKind::Clang:
ModuleDependenciesKind::Swift});
// Output module prescan.
if (FEOpts.ImportPrescan) {
writePrescanJSON(out, rootDeps.getValue());
return false;
}
// Explore the dependencies of every module.
for (unsigned currentModuleIdx = 0;
currentModuleIdx < allModules.size();
@@ -687,8 +695,6 @@ static bool scanModuleDependencies(CompilerInstance &instance,
allModules.insert(discoveredModules.begin(), discoveredModules.end());
}
// Write out the JSON description.
std::error_code EC;
llvm::raw_fd_ostream out(outputPath, EC, llvm::sys::fs::F_None);
writeJSON(out, instance, cache, ASTDelegate, allModules.getArrayRef());
return false;
}