Set breakpoint at url, line number

runtime/vm/debugger_api_impl.cc

 // Copyright (c) 2011, 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_debugger_api.h"
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_api_state.h"
 #include "vm/debugger.h"
 #include "vm/isolate.h"
@@ skipping 89 matching lines @@
     const String& url = String::Handle(frame->SourceUrl());
     *script_url = Api::NewLocalHandle(url);
   }
   if (line_number != NULL) {
     *line_number = frame->LineNumber();
   }
   return Api::True();
 }
 
 
+DART_EXPORT Dart_Handle Dart_SetBreakpointAtLine(
+                            Dart_Handle script_url_in,
+                            Dart_Handle line_number_in,
+                            Dart_Breakpoint* breakpoint) {
+  Isolate* isolate = Isolate::Current();
+  DARTSCOPE(isolate);
+
+  String& script_url = String::Handle();
+  Integer& line_number = Integer::Handle();
+  UNWRAP_AND_CHECK_PARAM(String, script_url, script_url_in);
+  UNWRAP_AND_CHECK_PARAM(Integer, line_number, line_number_in);
+  CHECK_NOT_NULL(breakpoint);
+
+  if (!line_number.IsSmi()) {
+    return Api::NewError("%s: line number out of range", CURRENT_FUNC);
+  }
+  intptr_t line = line_number.AsInt64Value();
+
+  const char* msg = CheckIsolateState(isolate);
+  if (msg != NULL) {
+    return Api::NewError(msg);
+  }
+
+  LongJump* base = isolate->long_jump_base();
+  LongJump jump;
+  isolate->set_long_jump_base(&jump);
+  Dart_Handle result = Api::True();
+  *breakpoint = NULL;
+  Debugger* debugger = isolate->debugger();
+  ASSERT(debugger != NULL);
+  if (setjmp(*jump.Set()) == 0) {
+    Breakpoint* bpt = debugger->SetBreakpointAtLine(script_url, line);
+    if (bpt == NULL) {
+      result = Api::NewError("%s: could not set breakpoint at line %d of '%s'",
+                             CURRENT_FUNC, line, script_url.ToCString());
+    } else {
+      *breakpoint = reinterpret_cast<Dart_Breakpoint>(bpt);
+    }
+  } else {
+    SetupErrorResult(&result);
+  }
+  isolate->set_long_jump_base(base);
+  return result;
+}
+
+
 DART_EXPORT Dart_Handle Dart_SetBreakpointAtEntry(
                             Dart_Handle library_in,
                             Dart_Handle class_name_in,
                             Dart_Handle function_name_in,
                             Dart_Breakpoint* breakpoint) {
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
 
   Library& library = Library::Handle();
   String& class_name = String::Handle();
@@ skipping 37 matching lines @@
     }
   } else {
     SetupErrorResult(&result);
   }
   isolate->set_long_jump_base(base);
   return result;
 }
 
 
 }  // namespace dart