Fix setting breakpoints in parts of a library.

runtime/vm/debugger_test.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_message.h"
 #include "vm/debugger.h"
 #include "vm/message.h"
 #include "vm/unit_test.h"
 
@@ skipping 62 matching lines @@
 
 static int closure_hit_count = 0;
 int64_t closure_bp_id[4];
 static void PausedInClosuresHandler(Dart_IsolateId isolate_id,
                                     intptr_t bp_id,
                                     const Dart_CodeLocation& location) {
   EXPECT(bp_id == closure_bp_id[closure_hit_count]);
   closure_hit_count++;
 }
 
+TEST_CASE(Debugger_SetBreakpointInPartOfLibrary) {
+  const char* kMainScript = "main() {}\n";
+  const char* kLib = "library test_lib;\n";
+  const char* kLibPart =
+      "part of test_lib;\n"
+      "void func(int a, int b) {\n"
+      "  return a + b;\n"
+      "}\n";
+  SetFlagScope<bool> sfs(&FLAG_remove_script_timestamps_for_test, true);
+  Dart_Handle root_lib = TestCase::LoadTestScript(kMainScript, NULL);
+  EXPECT_VALID(root_lib);
+
+  Dart_Handle url = NewString("test_lib_url");
+  Dart_Handle lib_source = NewString(kLib);
+  Dart_Handle lib = Dart_LoadLibrary(url, Dart_Null(), lib_source, 0, 0);
+  EXPECT_VALID(lib);
+  EXPECT(Dart_IsLibrary(lib));
+
+  Dart_Handle part_url = NewString("part_url");
+  Dart_Handle part_source = NewString(kLibPart);
+  Dart_Handle result =
+      Dart_LoadSource(lib, part_url, Dart_Null(), part_source, 0, 0);
+  EXPECT_VALID(result);
+  EXPECT(Dart_IsLibrary(result));
+  EXPECT(Dart_IdentityEquals(lib, result));
+
+  result = Dart_SetBreakpoint(part_url, 3);
+  EXPECT_VALID(result);
+  EXPECT(Dart_IsInteger(result));
+}
+
 TEST_CASE(Debugger_SetBreakpointInFunctionLiteralFieldInitializers) {
   const char* kScriptChars =
       "main() {\n"
       "  var c = new MyClass();\n"
       "  c.closure(1, 2);\n"
       "  MyClass.staticClosure(7, 8);\n"
       "  closure(3, 4);\n"
       "  closureSingleLine(5, 6);\n"
       "}\n"
       "class MyClass {\n"
@@ skipping 491 matching lines @@
       "enter(bar1) enter(bar2) enter(bar3) enter(foo) "
       "enter(bar3) enter(foo) "
       "exit(foo) exit(bar3) exit(bar2) exit(bar1) ",
       result_cstr);
   EXPECT(saw_paused_event);
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart