[CAS][DependencyScan] Add bridging header inputs into mainModule CAS deps

Make sure the sources for bridging header is added as part of the CAS
filesystem for the main module. Even bridging header should be compiled
into PCH, PCHs are not standalone that it can be used without source
file.

Author: cachemeifyoucan

lib/DependencyScan/ScanDependencies.cpp

@@ -310,6 +310,35 @@ static llvm::Error resolveExplicitModuleInputs(
   if (auto ID = resolvingDepInfo.getClangIncludeTree())
     includeTrees.push_back(*ID);
 
+  auto addBridgingHeaderDeps =
+      [&](const ModuleDependencyInfo &depInfo) -> llvm::Error {
+    auto sourceDepDetails = depInfo.getAsSwiftSourceModule();
+    if (!sourceDepDetails)
+      return llvm::Error::success();
+
+    if (sourceDepDetails->textualModuleDetails
+            .CASBridgingHeaderIncludeTreeRootID.empty()) {
+      if (!sourceDepDetails->textualModuleDetails.bridgingSourceFiles.empty()) {
+        if (auto tracker =
+                cache.getScanService().createSwiftDependencyTracker()) {
+          tracker->startTracking();
+          for (auto &file :
+               sourceDepDetails->textualModuleDetails.bridgingSourceFiles)
+            tracker->trackFile(file);
+          auto bridgeRoot = tracker->createTreeFromDependencies();
+          if (!bridgeRoot)
+            return bridgeRoot.takeError();
+          rootIDs.push_back(bridgeRoot->getID().toString());
+        }
+      }
+    } else
+      includeTrees.push_back(sourceDepDetails->textualModuleDetails
+                                 .CASBridgingHeaderIncludeTreeRootID);
+    return llvm::Error::success();
+  };
+  if (auto E = addBridgingHeaderDeps(resolvingDepInfo))
+    return E;
+
   std::vector<std::string> commandLine = resolvingDepInfo.getCommandline();
   for (const auto &depModuleID : dependencies) {
     const auto optionalDepInfo =
@@ -386,27 +415,8 @@ static llvm::Error resolveExplicitModuleInputs(
         includeTrees.push_back(*ID);
     } break;
     case swift::ModuleDependencyKind::SwiftSource: {
-      auto sourceDepDetails = depInfo->getAsSwiftSourceModule();
-      assert(sourceDepDetails && "Expected source dependency");
-      if (sourceDepDetails->textualModuleDetails
-              .CASBridgingHeaderIncludeTreeRootID.empty()) {
-        if (!sourceDepDetails->textualModuleDetails.bridgingSourceFiles
-                 .empty()) {
-          if (auto tracker =
-                  cache.getScanService().createSwiftDependencyTracker()) {
-            tracker->startTracking();
-            for (auto &file :
-                 sourceDepDetails->textualModuleDetails.bridgingSourceFiles)
-              tracker->trackFile(file);
-            auto bridgeRoot = tracker->createTreeFromDependencies();
-            if (!bridgeRoot)
-              return bridgeRoot.takeError();
-            rootIDs.push_back(bridgeRoot->getID().toString());
-          }
-        }
-      } else
-        includeTrees.push_back(sourceDepDetails->textualModuleDetails
-                                   .CASBridgingHeaderIncludeTreeRootID);
+      if (auto E = addBridgingHeaderDeps(*depInfo))
+        return E;
       break;
     }
     default:

test/CAS/Inputs/SwiftDepsExtractor.py

@@ -27,8 +27,8 @@
             continue
 
         if key in detail.keys():
-            print(detail[key])
+            json.dump(detail[key], sys.stdout, indent=2)
             break
 
-        print(detail['details'][mode][key])
+        json.dump(detail['details'][mode][key], sys.stdout, indent=2)
         break

test/CAS/module_deps.swift

@@ -28,6 +28,10 @@
 // RUN: %S/Inputs/SwiftDepsExtractor.py %t/deps.json clang:F casFSRootID > %t/F_fs.casid
 // RUN: llvm-cas --cas %t/cas --ls-tree-recursive @%t/F_fs.casid | %FileCheck %s -check-prefix FS_ROOT_F
 
+/// make sure the number of CASFS is correct. 10 entries with 2 line each + 1 extra bracket
+// RUN: NUM_CMDS=$(%S/Inputs/SwiftDepsExtractor.py %t/deps.json deps commandLine | wc -l)
+// RUN: if [ ! $NUM_CMDS -eq 21 ]; then echo "wrong number of CASFS from scanning"; exit 1; fi
+
 // FS_ROOT_E-DAG: E.swiftinterface
 // FS_ROOT_E-DAG: SDKSettings.json
 

test/CAS/module_deps_include_tree.swift

@@ -29,6 +29,10 @@
 // RUN: %S/Inputs/SwiftDepsExtractor.py %t/deps.json clang:F clangIncludeTree > %t/F_tree.casid
 // RUN: clang-cas-test --cas %t/cas --print-include-tree @%t/F_tree.casid | %FileCheck %s -check-prefix INCLUDE_TREE_F
 
+/// make sure the number of CASFS is correct. 10 entries with 2 line each + 1 extra bracket
+// RUN: NUM_CMDS=$(%S/Inputs/SwiftDepsExtractor.py %t/deps.json deps commandLine | wc -l)
+// RUN: if [ ! $NUM_CMDS -eq 21 ]; then echo "wrong number of CASFS from scanning"; exit 1; fi
+
 // FS_ROOT_E-DAG: E.swiftinterface
 // FS_ROOT_E-DAG: SDKSettings.json