VM: Re-format to use at most one newline between functions

runtime/vm/debugger_api_impl.cc

 // Copyright (c) 2012, 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 "include/dart_tools_api.h"
 
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
@@ skipping 18 matching lines @@
                            CURRENT_FUNC, #param);                              \
     } else if (tmp.IsApiError()) {                                             \
       return param;                                                            \
     } else if (!tmp.Is##type()) {                                              \
       return Api::NewError("%s expects argument '%s' to be of type %s.",       \
                            CURRENT_FUNC, #param, #type);                       \
     }                                                                          \
     var ^= tmp.raw();                                                          \
   } while (0)
 
-
 #define CHECK_AND_CAST(type, var, param)                                       \
   type* var = NULL;                                                            \
   do {                                                                         \
     if (param == NULL) {                                                       \
       return Api::NewError("%s expects argument '%s' to be non-null.",         \
                            CURRENT_FUNC, #param);                              \
     }                                                                          \
     var = reinterpret_cast<type*>(param);                                      \
   } while (0)
 
-
 #define CHECK_NOT_NULL(param)                                                  \
   if (param == NULL) {                                                         \
     return Api::NewError("%s expects argument '%s' to be non-null.",           \
                          CURRENT_FUNC, #param);                                \
   }
 
 #define CHECK_DEBUGGER(isolate)                                                \
   if (isolate->debugger() == NULL) {                                           \
     return Api::NewError("%s requires debugger support.", CURRENT_FUNC);       \
   }
 
-
 DART_EXPORT intptr_t Dart_CacheObject(Dart_Handle object_in) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   const Object& obj = Object::Handle(Z, Api::UnwrapHandle(object_in));
   if (obj.IsApiError() || (I->debugger() == NULL)) {
     return -1;
   }
   return I->debugger()->CacheObject(obj);
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetCachedObject(intptr_t obj_id) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   if (!I->debugger()->IsValidObjectId(obj_id)) {
     return Api::NewError("%s: object id %" Pd " is invalid", CURRENT_FUNC,
                          obj_id);
   }
   return Api::NewHandle(T, I->debugger()->GetCachedObject(obj_id));
 }
 
-
 DART_EXPORT Dart_Handle Dart_StackTraceLength(Dart_StackTrace trace,
                                               intptr_t* length) {
   DARTSCOPE(Thread::Current());
   CHECK_NOT_NULL(length);
   CHECK_AND_CAST(DebuggerStackTrace, stack_trace, trace);
   *length = stack_trace->Length();
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetActivationFrame(Dart_StackTrace trace,
                                                 int frame_index,
                                                 Dart_ActivationFrame* frame) {
   DARTSCOPE(Thread::Current());
   CHECK_NOT_NULL(frame);
   CHECK_AND_CAST(DebuggerStackTrace, stack_trace, trace);
   if ((frame_index < 0) || (frame_index >= stack_trace->Length())) {
     return Api::NewError("argument 'frame_index' is out of range for %s",
                          CURRENT_FUNC);
   }
   *frame =
       reinterpret_cast<Dart_ActivationFrame>(stack_trace->FrameAt(frame_index));
   return Api::Success();
 }
 
 static Dart_PausedEventHandler* paused_event_handler = NULL;
 static Dart_BreakpointResolvedHandler* bp_resolved_handler = NULL;
 static Dart_ExceptionThrownHandler* exc_thrown_handler = NULL;
 static Dart_IsolateEventHandler* isolate_event_handler = NULL;
 
-
 static void DebuggerEventHandler(ServiceEvent* event) {
   Thread* thread = Thread::Current();
   Isolate* isolate = thread->isolate();
   ASSERT(isolate != NULL);
   Dart_EnterScope();
   Dart_IsolateId isolate_id = isolate->debugger()->GetIsolateId();
   if (event->kind() == ServiceEvent::kPauseBreakpoint) {
     if (paused_event_handler != NULL) {
       Dart_CodeLocation location;
       ActivationFrame* top_frame = event->top_frame();
@@ skipping 47 matching lines @@
       (*isolate_event_handler)(event->isolate_id(), kShutdown);
     }
   } else if (event->kind() == ServiceEvent::kPausePostRequest) {
     // Ignore.
   } else {
     UNIMPLEMENTED();
   }
   Dart_ExitScope();
 }
 
-
 DART_EXPORT void Dart_SetPausedEventHandler(Dart_PausedEventHandler handler) {
   paused_event_handler = handler;
   Debugger::SetEventHandler(DebuggerEventHandler);
 }
 
-
 DART_EXPORT void Dart_SetBreakpointResolvedHandler(
     Dart_BreakpointResolvedHandler handler) {
   bp_resolved_handler = handler;
   Debugger::SetEventHandler(DebuggerEventHandler);
 }
 
-
 DART_EXPORT void Dart_SetExceptionThrownHandler(
     Dart_ExceptionThrownHandler handler) {
   exc_thrown_handler = handler;
   Debugger::SetEventHandler(DebuggerEventHandler);
 }
 
-
 DART_EXPORT void Dart_SetIsolateEventHandler(Dart_IsolateEventHandler handler) {
   isolate_event_handler = handler;
   Debugger::SetEventHandler(DebuggerEventHandler);
 }
 
-
 DART_EXPORT Dart_Handle
 Dart_SetExceptionPauseInfo(Dart_ExceptionPauseInfo pause_info) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   I->debugger()->SetExceptionPauseInfo(pause_info);
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_ExceptionPauseInfo Dart_GetExceptionPauseInfo() {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   if (I->debugger() == NULL) {
     return kNoPauseOnExceptions;
   }
   return I->debugger()->GetExceptionPauseInfo();
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetStackTrace(Dart_StackTrace* trace) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   CHECK_NOT_NULL(trace);
   *trace =
       reinterpret_cast<Dart_StackTrace>(I->debugger()->CurrentStackTrace());
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetStackTraceFromError(Dart_Handle handle,
                                                     Dart_StackTrace* trace) {
   DARTSCOPE(Thread::Current());
   CHECK_DEBUGGER(T->isolate());
   CHECK_NOT_NULL(trace);
   const Object& obj = Object::Handle(Z, Api::UnwrapHandle(handle));
   if (obj.IsUnhandledException()) {
     const UnhandledException& error = UnhandledException::Cast(obj);
     StackTrace& dart_stacktrace = StackTrace::Handle(Z);
     dart_stacktrace ^= error.stacktrace();
     if (dart_stacktrace.IsNull()) {
       *trace = NULL;
     } else {
       Isolate* I = T->isolate();
       *trace = reinterpret_cast<Dart_StackTrace>(
           I->debugger()->StackTraceFrom(dart_stacktrace));
     }
     return Api::Success();
   } else {
     return Api::NewError(
         "Can only get stacktraces from error handles or "
         "instances of Error.");
   }
 }
 
-
 DART_EXPORT Dart_Handle
 Dart_ActivationFrameInfo(Dart_ActivationFrame activation_frame,
                          Dart_Handle* function_name,
                          Dart_Handle* script_url,
                          intptr_t* line_number,
                          intptr_t* column_number) {
   DARTSCOPE(Thread::Current());
   CHECK_AND_CAST(ActivationFrame, frame, activation_frame);
   if (function_name != NULL) {
     *function_name = Api::NewHandle(T, frame->QualifiedFunctionName());
   }
   if (script_url != NULL) {
     *script_url = Api::NewHandle(T, frame->SourceUrl());
   }
   if (line_number != NULL) {
     *line_number = frame->LineNumber();
   }
   if (column_number != NULL) {
     *column_number = frame->ColumnNumber();
   }
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle
 Dart_ActivationFrameGetLocation(Dart_ActivationFrame activation_frame,
                                 Dart_Handle* function_name,
                                 Dart_Handle* function,
                                 Dart_CodeLocation* location) {
   // TODO(hausner): Implement a way to recognize when there
   // is no source code for the code in the frame.
   DARTSCOPE(Thread::Current());
   CHECK_AND_CAST(ActivationFrame, frame, activation_frame);
   if (function_name != NULL) {
@@ skipping 17 matching lines @@
                                     uintptr_t* frame_pointer) {
   DARTSCOPE(Thread::Current());
   CHECK_AND_CAST(ActivationFrame, frame, activation_frame);
 
   if (frame_pointer != NULL) {
     *frame_pointer = static_cast<uintptr_t>(frame->fp());
   }
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetFunctionOrigin(Dart_Handle function_in) {
   DARTSCOPE(Thread::Current());
   UNWRAP_AND_CHECK_PARAM(Function, function, function_in);
 
   const Class& cls = Class::Handle(Z, function.origin());
   if (!cls.IsTopLevel()) {
     return Dart_NewInteger(cls.id());
   }
   return Api::Null();
 }
 
-
 DART_EXPORT Dart_Handle
 Dart_GetLocalVariables(Dart_ActivationFrame activation_frame) {
   DARTSCOPE(Thread::Current());
   CHECK_AND_CAST(ActivationFrame, frame, activation_frame);
   return Api::NewHandle(T, frame->GetLocalVariables());
 }
 
-
 DART_EXPORT Dart_Handle Dart_SetBreakpoint(Dart_Handle script_url_in,
                                            intptr_t line_number) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
 
   Debugger* debugger = I->debugger();
   Breakpoint* bpt = debugger->SetBreakpointAtLine(script_url, line_number);
   if (bpt == NULL) {
     return Api::NewError("%s: could not set breakpoint at line %" Pd " in '%s'",
                          CURRENT_FUNC, line_number, script_url.ToCString());
   }
   return Dart_NewInteger(bpt->id());
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetBreakpointURL(intptr_t bp_id) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   Debugger* debugger = I->debugger();
 
   Breakpoint* bpt = debugger->GetBreakpointById(bp_id);
   if (bpt == NULL) {
     return Api::NewError("%s: breakpoint with id %" Pd " does not exist",
                          CURRENT_FUNC, bp_id);
   }
   return Api::NewHandle(T, bpt->bpt_location()->url());
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetBreakpointLine(intptr_t bp_id) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   Debugger* debugger = I->debugger();
 
   Breakpoint* bpt = debugger->GetBreakpointById(bp_id);
   if (bpt == NULL) {
     return Api::NewError("%s: breakpoint with id %" Pd " does not exist",
                          CURRENT_FUNC, bp_id);
   }
   if (bpt->bpt_location()->IsResolved()) {
     return Dart_NewInteger(bpt->bpt_location()->LineNumber());
   } else {
     return Dart_NewInteger(bpt->bpt_location()->requested_line_number());
   }
 }
 
-
 DART_EXPORT Dart_Handle
 Dart_SetBreakpointAtEntry(Dart_Handle library_in,
                           Dart_Handle class_name_in,
                           Dart_Handle function_name_in) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   UNWRAP_AND_CHECK_PARAM(Library, library, library_in);
   UNWRAP_AND_CHECK_PARAM(String, class_name, class_name_in);
   UNWRAP_AND_CHECK_PARAM(String, function_name, function_name_in);
@@ skipping 17 matching lines @@
 
   Breakpoint* bpt = debugger->SetBreakpointAtEntry(bp_target, false);
   if (bpt == NULL) {
     const char* target_name = Debugger::QualifiedFunctionName(bp_target);
     return Api::NewError("%s: no breakpoint location found in '%s'",
                          CURRENT_FUNC, target_name);
   }
   return Dart_NewInteger(bpt->id());
 }
 
-
 DART_EXPORT Dart_Handle Dart_OneTimeBreakAtEntry(Dart_Handle library_in,
                                                  Dart_Handle class_name_in,
                                                  Dart_Handle function_name_in) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   UNWRAP_AND_CHECK_PARAM(Library, library, library_in);
   UNWRAP_AND_CHECK_PARAM(String, class_name, class_name_in);
   UNWRAP_AND_CHECK_PARAM(String, function_name, function_name_in);
 
@@ skipping 15 matching lines @@
   }
 
   const Error& error =
       Error::Handle(Z, debugger->OneTimeBreakAtEntry(bp_target));
   if (!error.IsNull()) {
     return Api::NewHandle(T, error.raw());
   }
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_RemoveBreakpoint(intptr_t bp_id) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   I->debugger()->RemoveBreakpoint(bp_id);
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_SetStepOver() {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   I->debugger()->SetResumeAction(Debugger::kStepOver);
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_SetStepInto() {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   I->debugger()->SetResumeAction(Debugger::kStepInto);
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_SetStepOut() {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   I->debugger()->SetResumeAction(Debugger::kStepOut);
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetInstanceFields(Dart_Handle object_in) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   UNWRAP_AND_CHECK_PARAM(Instance, obj, object_in);
   return Api::NewHandle(T, I->debugger()->GetInstanceFields(obj));
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetStaticFields(Dart_Handle target) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   const Type& type_obj = Api::UnwrapTypeHandle(Z, target);
   if (type_obj.IsNull()) {
     return Api::NewError("%s expects argument 'target' to be a type",
                          CURRENT_FUNC);
   }
   const Class& cls = Class::Handle(Z, type_obj.type_class());
   return Api::NewHandle(T, I->debugger()->GetStaticFields(cls));
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetLibraryFields(intptr_t library_id) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   const Library& lib = Library::Handle(Z, Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   return Api::NewHandle(T, I->debugger()->GetLibraryFields(lib));
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetGlobalVariables(intptr_t library_id) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
 
   const Library& lib = Library::Handle(Z, Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   return Api::NewHandle(T, I->debugger()->GetGlobalFields(lib));
 }
 
-
 DART_EXPORT Dart_Handle
 Dart_ActivationFrameEvaluate(Dart_ActivationFrame activation_frame,
                              Dart_Handle expr_in) {
   DARTSCOPE(Thread::Current());
   CHECK_DEBUGGER(T->isolate());
   CHECK_AND_CAST(ActivationFrame, frame, activation_frame);
   UNWRAP_AND_CHECK_PARAM(String, expr, expr_in);
   const GrowableObjectArray& names =
       GrowableObjectArray::Handle(GrowableObjectArray::New());
   const GrowableObjectArray& values =
       GrowableObjectArray::Handle(GrowableObjectArray::New());
   return Api::NewHandle(T, frame->Evaluate(expr, names, values));
 }
 
-
 DART_EXPORT Dart_Handle Dart_EvaluateExpr(Dart_Handle target_in,
                                           Dart_Handle expr_in) {
   DARTSCOPE(Thread::Current());
   CHECK_DEBUGGER(T->isolate());
 
   const Object& target = Object::Handle(Z, Api::UnwrapHandle(target_in));
   if (target.IsError()) return target_in;
   if (target.IsNull()) {
     return Api::NewError("%s expects argument 'target' to be non-null",
                          CURRENT_FUNC);
@@ skipping 15 matching lines @@
     return Api::NewHandle(
         T, lib.Evaluate(expr, Array::empty_array(), Array::empty_array()));
   } else if (target.IsClass()) {
     const Class& cls = Class::Cast(target);
     return Api::NewHandle(
         T, cls.Evaluate(expr, Array::empty_array(), Array::empty_array()));
   }
   return Api::NewError("%s: unsupported target type", CURRENT_FUNC);
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetObjClass(Dart_Handle object_in) {
   DARTSCOPE(Thread::Current());
   UNWRAP_AND_CHECK_PARAM(Instance, obj, object_in);
   return Api::NewHandle(T, obj.GetType(Heap::kNew));
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetObjClassId(Dart_Handle object_in,
                                            intptr_t* class_id) {
   DARTSCOPE(Thread::Current());
   UNWRAP_AND_CHECK_PARAM(Instance, obj, object_in);
   CHECK_NOT_NULL(class_id);
   *class_id = obj.GetClassId();
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetClassFromId(intptr_t class_id) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   if (!I->class_table()->IsValidIndex(class_id)) {
     return Api::NewError("%s: %" Pd " is not a valid class id", CURRENT_FUNC,
                          class_id);
   }
   return Api::NewHandle(T, I->class_table()->At(class_id));
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetSupertype(Dart_Handle type_in) {
   DARTSCOPE(Thread::Current());
 
   UNWRAP_AND_CHECK_PARAM(Type, type, type_in);
   if (!type.IsFinalized()) {
     return Api::NewError("%s: type in 'type_in' is not a finalized type",
                          CURRENT_FUNC);
   }
   if (!type.IsInstantiated()) {
     return Api::NewError("%s: type in 'type_in' is not an instantiated type",
@@ skipping 25 matching lines @@
   }
 
   // Construct the super type object, canonicalize it and return.
   Type& instantiated_type = Type::Handle(
       Type::New(super_cls, super_type_args_array, TokenPosition::kNoSource));
   ASSERT(!instantiated_type.IsNull());
   instantiated_type.SetIsFinalized();
   return Api::NewHandle(T, instantiated_type.Canonicalize());
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetClosureInfo(Dart_Handle closure,
                                             Dart_Handle* name,
                                             Dart_Handle* signature,
                                             Dart_CodeLocation* location) {
   DARTSCOPE(Thread::Current());
   UNWRAP_AND_CHECK_PARAM(Instance, instance, closure);
   CHECK_NOT_NULL(location);
 
   if (!instance.IsClosure()) {
     return Api::NewError("%s: parameter 0 is not a closure", CURRENT_FUNC);
@@ skipping 21 matching lines @@
       location->token_pos = func.token_pos().Pos();
     } else {
       location->script_url = Api::NewHandle(T, String::null());
       location->library_id = -1;
       location->token_pos = -1;
     }
   }
   return Api::True();
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetClassInfo(intptr_t cls_id,
                                           Dart_Handle* class_name,
                                           intptr_t* library_id,
                                           intptr_t* super_class_id,
                                           Dart_Handle* static_fields) {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   CHECK_DEBUGGER(I);
   if (!I->class_table()->IsValidIndex(cls_id)) {
     return Api::NewError("%s: %" Pd " is not a valid class id", CURRENT_FUNC,
@@ skipping 13 matching lines @@
     if (!super_cls.IsNull()) {
       *super_class_id = super_cls.id();
     }
   }
   if (static_fields != NULL) {
     *static_fields = Api::NewHandle(T, I->debugger()->GetStaticFields(cls));
   }
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_ScriptGetSource(intptr_t library_id,
                                              Dart_Handle script_url_in) {
   DARTSCOPE(Thread::Current());
   const Library& lib = Library::Handle(Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
   const Script& script = Script::Handle(lib.LookupScript(script_url));
   if (script.IsNull()) {
     return Api::NewError("%s: script '%s' not found in library '%s'",
                          CURRENT_FUNC, script_url.ToCString(),
                          String::Handle(lib.url()).ToCString());
   }
   return Api::NewHandle(T, script.Source());
 }
 
-
 DART_EXPORT Dart_Handle Dart_ScriptGetTokenInfo(intptr_t library_id,
                                                 Dart_Handle script_url_in) {
   DARTSCOPE(Thread::Current());
   const Library& lib = Library::Handle(Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
   const Script& script = Script::Handle(lib.LookupScript(script_url));
   if (script.IsNull()) {
     return Api::NewError("%s: script '%s' not found in library '%s'",
                          CURRENT_FUNC, script_url.ToCString(),
                          String::Handle(lib.url()).ToCString());
   }
 
   const GrowableObjectArray& info =
       GrowableObjectArray::Handle(script.GenerateLineNumberArray());
   return Api::NewHandle(T, Array::MakeFixedLength(info));
 }
 
-
 DART_EXPORT Dart_Handle Dart_GenerateScriptSource(Dart_Handle library_url_in,
                                                   Dart_Handle script_url_in) {
   DARTSCOPE(Thread::Current());
   UNWRAP_AND_CHECK_PARAM(String, library_url, library_url_in);
   UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
 
   const Library& library =
       Library::Handle(Z, Library::LookupLibrary(T, library_url));
   if (library.IsNull()) {
     return Api::NewError("%s: library '%s' not found", CURRENT_FUNC,
                          library_url.ToCString());
   }
 
   const Script& script = Script::Handle(Z, library.LookupScript(script_url));
   if (script.IsNull()) {
     return Api::NewError("%s: script '%s' not found in library '%s'",
                          CURRENT_FUNC, script_url.ToCString(),
                          library_url.ToCString());
   }
 
   return Api::NewHandle(T, script.GenerateSource());
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetScriptURLs(Dart_Handle library_url_in) {
   DARTSCOPE(Thread::Current());
   UNWRAP_AND_CHECK_PARAM(String, library_url, library_url_in);
 
   const Library& library =
       Library::Handle(Z, Library::LookupLibrary(T, library_url));
   if (library.IsNull()) {
     return Api::NewError("%s: library '%s' not found", CURRENT_FUNC,
                          library_url.ToCString());
   }
   const Array& loaded_scripts = Array::Handle(Z, library.LoadedScripts());
   ASSERT(!loaded_scripts.IsNull());
   intptr_t num_scripts = loaded_scripts.Length();
   const Array& script_list = Array::Handle(Z, Array::New(num_scripts));
   Script& script = Script::Handle(Z);
   String& url = String::Handle(Z);
   for (int i = 0; i < num_scripts; i++) {
     script ^= loaded_scripts.At(i);
     url = script.url();
     script_list.SetAt(i, url);
   }
   return Api::NewHandle(T, script_list.raw());
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetLibraryIds() {
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
 
   const GrowableObjectArray& libs =
       GrowableObjectArray::Handle(Z, I->object_store()->libraries());
   int num_libs = libs.Length();
 
   // Create new list and populate with the url of loaded libraries.
   Library& lib = Library::Handle();
   const Array& library_id_list = Array::Handle(Z, Array::New(num_libs));
   for (int i = 0; i < num_libs; i++) {
     lib ^= libs.At(i);
     ASSERT(!lib.IsNull());
     ASSERT(Smi::IsValid(lib.index()));
     library_id_list.SetAt(i, Smi::Handle(Smi::New(lib.index())));
   }
   return Api::NewHandle(T, library_id_list.raw());
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetLibraryFromId(intptr_t library_id) {
   DARTSCOPE(Thread::Current());
   const Library& lib = Library::Handle(Z, Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   return Api::NewHandle(T, lib.raw());
 }
 
-
 DART_EXPORT Dart_Handle Dart_LibraryId(Dart_Handle library,
                                        intptr_t* library_id) {
   DARTSCOPE(Thread::Current());
   const Library& lib = Api::UnwrapLibraryHandle(Z, library);
   if (lib.IsNull()) {
     RETURN_TYPE_ERROR(Z, library, Library);
   }
   if (library_id == NULL) {
     RETURN_NULL_ERROR(library_id);
   }
   *library_id = lib.index();
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetLibraryImports(intptr_t library_id) {
   DARTSCOPE(Thread::Current());
   const Library& lib = Library::Handle(Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   const GrowableObjectArray& import_list =
       GrowableObjectArray::Handle(GrowableObjectArray::New(8));
 
@@ skipping 16 matching lines @@
     prefix_name = String::Concat(prefix_name, Symbols::Dot());
     for (int32_t i = 0; i < prefix.num_imports(); i++) {
       imported = prefix.GetLibrary(i);
       import_list.Add(prefix_name);
       import_list.Add(Smi::Handle(Smi::New(imported.index())));
     }
   }
   return Api::NewHandle(T, Array::MakeFixedLength(import_list));
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetLibraryURL(intptr_t library_id) {
   DARTSCOPE(Thread::Current());
   const Library& lib = Library::Handle(Z, Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   return Api::NewHandle(T, lib.url());
 }
 
-
 DART_EXPORT Dart_Handle Dart_GetLibraryDebuggable(intptr_t library_id,
                                                   bool* is_debuggable) {
   DARTSCOPE(Thread::Current());
   CHECK_NOT_NULL(is_debuggable);
   const Library& lib = Library::Handle(Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   *is_debuggable = lib.IsDebuggable();
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Handle Dart_SetLibraryDebuggable(intptr_t library_id,
                                                   bool is_debuggable) {
   DARTSCOPE(Thread::Current());
   const Library& lib = Library::Handle(Z, Library::GetLibrary(library_id));
   if (lib.IsNull()) {
     return Api::NewError("%s: %" Pd " is not a valid library id", CURRENT_FUNC,
                          library_id);
   }
   lib.set_debuggable(is_debuggable);
   return Api::Success();
 }
 
-
 DART_EXPORT Dart_Isolate Dart_GetIsolate(Dart_IsolateId isolate_id) {
   Isolate* isolate = PortMap::GetIsolate(isolate_id);
   return Api::CastIsolate(isolate);
 }
 
-
 DART_EXPORT Dart_IsolateId Dart_GetIsolateId(Dart_Isolate dart_isolate) {
   Isolate* isolate = reinterpret_cast<Isolate*>(dart_isolate);
   if (isolate->debugger() == NULL) {
     return ILLEGAL_ISOLATE_ID;
   }
   return isolate->debugger()->GetIsolateId();
 }
 
 #else
 
 DART_EXPORT void Dart_SetPausedEventHandler(Dart_PausedEventHandler handler) {
   // NOOP.
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart