[analyzer] Change the warning message for GCD antipattern checker

llvm-svn: 332544

clang/lib/StaticAnalyzer/Checkers/GCDAntipatternChecker.cpp

@@ -187,8 +187,8 @@ static void emitDiagnostics(const BoundNodes &Nodes,
 
   std::string Diagnostics;
   llvm::raw_string_ostream OS(Diagnostics);
-  OS << "Waiting on a " << Type << " with Grand Central Dispatch creates "
-     << "useless threads and is subject to priority inversion; consider "
+  OS << "Waiting on a callback using a " << Type << " creates useless threads "
+     << "and is subject to priority inversion; consider "
      << "using a synchronous API or changing the caller to be asynchronous";
 
   BR.EmitBasicReport(

clang/test/Analysis/gcdantipatternchecker_test.m

@@ -34,7 +34,7 @@ void use_semaphor_antipattern() {
   func(^{
       dispatch_semaphore_signal(sema);
   });
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }
 
 // It's OK to use pattern in tests.
@@ -54,14 +54,14 @@ void use_semaphor_antipattern_multiple_times() {
   func(^{
       dispatch_semaphore_signal(sema1);
   });
-  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 
   dispatch_semaphore_t sema2 = dispatch_semaphore_create(0);
 
   func(^{
       dispatch_semaphore_signal(sema2);
   });
-  dispatch_semaphore_wait(sema2, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema2, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }
 
 void use_semaphor_antipattern_multiple_wait() {
@@ -71,8 +71,8 @@ void use_semaphor_antipattern_multiple_wait() {
       dispatch_semaphore_signal(sema1);
   });
   // FIXME: multiple waits on same semaphor should not raise a warning.
-  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
-  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a callback using a semaphore}}
+  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }
 
 void warn_incorrect_order() {
@@ -80,7 +80,7 @@ void warn_incorrect_order() {
   // if out of order.
   dispatch_semaphore_t sema = dispatch_semaphore_create(0);
 
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback}}
   func(^{
       dispatch_semaphore_signal(sema);
   });
@@ -92,7 +92,7 @@ void warn_w_typedef() {
   func_w_typedef(^{
       dispatch_semaphore_signal(sema);
   });
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }
 
 void warn_nested_ast() {
@@ -107,7 +107,7 @@ void warn_nested_ast() {
          dispatch_semaphore_signal(sema);
          });
   }
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }
 
 void use_semaphore_assignment() {
@@ -117,7 +117,7 @@ void use_semaphore_assignment() {
   func(^{
       dispatch_semaphore_signal(sema);
   });
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }
 
 void use_semaphore_assignment_init() {
@@ -127,7 +127,7 @@ void use_semaphore_assignment_init() {
   func(^{
       dispatch_semaphore_signal(sema);
   });
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }
 
 void differentsemaphoreok() {
@@ -179,7 +179,7 @@ void warn_with_cast() {
   func(^{
       dispatch_semaphore_signal((int)sema);
   });
-  dispatch_semaphore_wait((int)sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait((int)sema, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }
 
 @interface MyInterface1 : NSObject
@@ -200,7 +200,7 @@ void warn_with_cast() {
   func(^{
       dispatch_semaphore_signal(sema);
   });
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback}}
 }
 
 -(void) pass_block_as_second_param_warn {
@@ -209,7 +209,7 @@ void warn_with_cast() {
   [self flag:1 acceptBlock:^{
       dispatch_semaphore_signal(sema);
   }];
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback}}
 }
 
 -(void)testNoWarn {
@@ -235,7 +235,7 @@ void warn_with_cast() {
   [self acceptBlock:^{
       dispatch_semaphore_signal(sema);
   }];
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback}}
 }
 
 -(void)use_dispatch_group {
@@ -244,7 +244,7 @@ void warn_with_cast() {
   [self acceptBlock:^{
     dispatch_group_leave(group);
   }];
-  dispatch_group_wait(group, 100); // expected-warning{{Waiting on a group with Grand Central Dispatch}}
+  dispatch_group_wait(group, 100); // expected-warning{{Waiting on a callback using a group}}
 
 }
 
@@ -254,14 +254,14 @@ void use_objc_and_c_callback(MyInterface1 *t) {
   func(^{
       dispatch_semaphore_signal(sema);
   });
-  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 
   dispatch_semaphore_t sema1 = dispatch_semaphore_create(0);
 
   [t acceptBlock:^{
       dispatch_semaphore_signal(sema1);
   }];
-  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a callback}}
 }
 @end
 
@@ -305,7 +305,7 @@ void dispatch_group_wait_func(MyInterface1 *M) {
   func(^{
       dispatch_group_leave(group);
   });
-  dispatch_group_wait(group, 100); // expected-warning{{Waiting on a group with Grand Central Dispatch}}
+  dispatch_group_wait(group, 100); // expected-warning{{Waiting on a callback using a group}}
 }
 
 
@@ -315,7 +315,7 @@ void dispatch_group_wait_cfunc(MyInterface1 *M) {
   [M acceptBlock:^{
     dispatch_group_leave(group);
   }];
-  dispatch_group_wait(group, 100); // expected-warning{{Waiting on a group with Grand Central Dispatch}}
+  dispatch_group_wait(group, 100); // expected-warning{{Waiting on a callback using a group}}
 }
 
 void dispatch_group_and_semaphore_use(MyInterface1 *M) {
@@ -324,12 +324,12 @@ void dispatch_group_and_semaphore_use(MyInterface1 *M) {
   [M acceptBlock:^{
     dispatch_group_leave(group);
   }];
-  dispatch_group_wait(group, 100); // expected-warning{{Waiting on a group with Grand Central Dispatch}}
+  dispatch_group_wait(group, 100); // expected-warning{{Waiting on a callback using a group}}
 
   dispatch_semaphore_t sema1 = dispatch_semaphore_create(0);
 
   [M acceptBlock:^{
       dispatch_semaphore_signal(sema1);
   }];
-  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a semaphore with Grand Central Dispatch creates useless threads and is subject to priority inversion}}
+  dispatch_semaphore_wait(sema1, 100); // expected-warning{{Waiting on a callback using a semaphore}}
 }