FineModuleTrace: add a blocklist action for skipping fine module tracing

Author: nkcsgexi

include/swift/Basic/BlockListAction.def

@@ -23,5 +23,6 @@ BLOCKLIST_ACTION(ShouldUseBinaryModule)
 BLOCKLIST_ACTION(ShouldUseTextualModule)
 BLOCKLIST_ACTION(DowngradeInterfaceVerificationFailure)
 BLOCKLIST_ACTION(ShouldUseLayoutStringValueWitnesses)
+BLOCKLIST_ACTION(SkipEmittingFineModuleTrace)
 
 #undef BLOCKLIST_ACTION

lib/FrontendTool/LoadedModuleTrace.cpp

@@ -951,6 +951,9 @@ bool swift::emitFineModuleTraceIfNeeded(CompilerInstance &Instance,
   }
   ModuleDecl *mainModule = Instance.getMainModule();
   ASTContext &ctxt = mainModule->getASTContext();
+  if (ctxt.blockListConfig.hasBlockListAction(mainModule->getNameStr(),
+      BlockListKeyKind::ModuleName, BlockListAction::SkipEmittingFineModuleTrace))
+    return false;
   assert(!ctxt.hadError() &&
          "We should've already exited earlier if there was an error.");
 

test/IDE/objc_send_collector_1.swift

@@ -10,6 +10,15 @@
 // RUN: SWIFT_COMPILER_FINE_GRAINED_TRACE_PATH=%t/given_trace_2.json %target-swift-frontend  -I %t/lib/swift -emit-module %s %S/Inputs/objc_send_collector_2.swift -module-name main -swift-version 5 -F %S/Inputs/mock-sdk -emit-loaded-module-trace-path %t/.MODULE_TRACE -enable-library-evolution
 // RUN: not ls %t/given_trace_2.json
 
+
+// RUN: echo "---" > %t/blocklist.yml
+// RUN: echo "SkipEmittingFineModuleTrace:" >> %t/blocklist.yml
+// RUN: echo "  ModuleName:" >> %t/blocklist.yml
+// RUN: echo "    - FooBar" >> %t/blocklist.yml
+
+// RUN: SWIFT_COMPILER_FINE_GRAINED_TRACE_PATH=%t/given_trace_3.json %target-swift-frontend  -I %t/lib/swift -typecheck %s %S/Inputs/objc_send_collector_2.swift -module-name FooBar -swift-version 5 -F %S/Inputs/mock-sdk -emit-loaded-module-trace-path %t/.MODULE_TRACE -blocklist-file %t/blocklist.yml
+// RUN: not ls %t/given_trace_3.json
+
 // REQUIRES: objc_interop
 
 import Foo