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[ModuleInterface] Factor out common AST-layer withOutputFile helper.

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This commit is contained in:
Graydon Hoare
2018-10-18 00:29:31 -07:00
parent dc006e883a
commit fa95f7aebd
4 changed files with 59 additions and 52 deletions
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12
lib/FrontendTool/ReferenceDependencies.cpp
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@@ -17,6 +17,7 @@
#include "swift/AST/DiagnosticEngine.h"
#include "swift/AST/DiagnosticsFrontend.h"
#include "swift/AST/ExistentialLayout.h"
#include "swift/AST/FileSystem.h"
#include "swift/AST/Module.h"
#include "swift/AST/ModuleLoader.h"
#include "swift/AST/NameLookup.h"
@@ -193,17 +194,10 @@ bool ReferenceDependenciesEmitter::emit(DiagnosticEngine &diags,
// that may have been there. No error handling -- this is just a nicety, it
// doesn't matter if it fails.
llvm::sys::fs::rename(outputPath, outputPath + "~");
std::error_code EC =
swift::atomicallyWritingToFile(outputPath,
[&](llvm::raw_pwrite_stream &out) {
return withOutputFile(diags, outputPath, [&](llvm::raw_pwrite_stream &out) {
ReferenceDependenciesEmitter::emit(SF, depTracker, out);
return false;
});
if (EC) {
diags.diagnose(SourceLoc(), diag::error_opening_output, outputPath,
EC.message());
return true;
}
return false;
}
void ReferenceDependenciesEmitter::emit(SourceFile *SF,