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[clang] NFC: Move class to make it reusable 

This is a prep patch for D111560.
This commit is contained in:
Jan Svoboda 2021-10-13 17:57:45 +02:00
parent 8c1553f0d7
commit aae776a534
1 changed files with 48 additions and 46 deletions
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94
clang/lib/Frontend/CompilerInstance.cpp
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@ -559,6 +559,54 @@ void CompilerInstance::createASTContext() {
// ExternalASTSource
namespace {
// Helper to recursively read the module names for all modules we're adding.
// We mark these as known and redirect any attempt to load that module to
// the files we were handed.
struct ReadModuleNames : ASTReaderListener {
CompilerInstance &CI;
llvm::SmallVector<IdentifierInfo*, 8> LoadedModules;
ReadModuleNames(CompilerInstance &CI) : CI(CI) {}
void ReadModuleName(StringRef ModuleName) override {
LoadedModules.push_back(
CI.getPreprocessor().getIdentifierInfo(ModuleName));
}
void registerAll() {
ModuleMap &MM = CI.getPreprocessor().getHeaderSearchInfo().getModuleMap();
for (auto *II : LoadedModules)
MM.cacheModuleLoad(*II, MM.findModule(II->getName()));
LoadedModules.clear();
}
void markAllUnavailable() {
for (auto *II : LoadedModules) {
if (Module *M = CI.getPreprocessor()
.getHeaderSearchInfo()
.getModuleMap()
.findModule(II->getName())) {
M->HasIncompatibleModuleFile = true;
// Mark module as available if the only reason it was unavailable
// was missing headers.
SmallVector<Module *, 2> Stack;
Stack.push_back(M);
while (!Stack.empty()) {
Module *Current = Stack.pop_back_val();
if (Current->IsUnimportable) continue;
Current->IsAvailable = true;
Stack.insert(Stack.end(),
Current->submodule_begin(), Current->submodule_end());
}
}
}
LoadedModules.clear();
}
};
} // namespace
void CompilerInstance::createPCHExternalASTSource(
StringRef Path, DisableValidationForModuleKind DisableValidation,
bool AllowPCHWithCompilerErrors, void *DeserializationListener,
@ -1634,52 +1682,6 @@ bool CompilerInstance::loadModuleFile(StringRef FileName) {
*FrontendTimerGroup);
llvm::TimeRegion TimeLoading(FrontendTimerGroup ? &Timer : nullptr);
// Helper to recursively read the module names for all modules we're adding.
// We mark these as known and redirect any attempt to load that module to
// the files we were handed.
struct ReadModuleNames : ASTReaderListener {
CompilerInstance &CI;
llvm::SmallVector<IdentifierInfo*, 8> LoadedModules;
ReadModuleNames(CompilerInstance &CI) : CI(CI) {}
void ReadModuleName(StringRef ModuleName) override {
LoadedModules.push_back(
CI.getPreprocessor().getIdentifierInfo(ModuleName));
}
void registerAll() {
ModuleMap &MM = CI.getPreprocessor().getHeaderSearchInfo().getModuleMap();
for (auto *II : LoadedModules)
MM.cacheModuleLoad(*II, MM.findModule(II->getName()));
LoadedModules.clear();
}
void markAllUnavailable() {
for (auto *II : LoadedModules) {
if (Module *M = CI.getPreprocessor()
.getHeaderSearchInfo()
.getModuleMap()
.findModule(II->getName())) {
M->HasIncompatibleModuleFile = true;
// Mark module as available if the only reason it was unavailable
// was missing headers.
SmallVector<Module *, 2> Stack;
Stack.push_back(M);
while (!Stack.empty()) {
Module *Current = Stack.pop_back_val();
if (Current->IsUnimportable) continue;
Current->IsAvailable = true;
Stack.insert(Stack.end(),
Current->submodule_begin(), Current->submodule_end());
}
}
}
LoadedModules.clear();
}
};
// If we don't already have an ASTReader, create one now.
if (!TheASTReader)
createASTReader();