Set breakpoint at url, line number

runtime/bin/main.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 <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 
 #include "include/dart_api.h"
 #include "include/dart_debugger_api.h"
@@ skipping 341 matching lines @@
   return true;
 }
 
 
 static void PrintUsage() {
   fprintf(stderr,
           "dart [<vm-flags>] <dart-script-file> [<dart-options>]\n");
 }
 
 
+static Dart_Handle SetBreakpoint(const char* breakpoint_at,
+                                Dart_Handle library) {

[siva, 2012/01/18 01:32:03]

indentation?

[hausner, 2012/01/18 23:26:38]

Done.

+  Dart_Handle result;
+  if (strchr(breakpoint_at, ':')) {
+    Dart_Handle url;
+    Dart_Handle line_number;
+    char* bpt_line = strdup(breakpoint_at);
+    char* colon = strchr(bpt_line, ':');
+    ASSERT(colon != NULL);
+    *colon = '\0';
+    url = Dart_NewString(bpt_line);

[siva, 2012/01/18 01:32:03]

Dart_Handle url = ....;

[hausner, 2012/01/18 23:26:38]

Done.

+    line_number = Dart_NewInteger(atoi(colon + 1));

[siva, 2012/01/18 01:32:03]

Dart_Handle line_number = ...;

Also we may want to protect against input strings of the form "myurl:"

[hausner, 2012/01/18 23:26:38]

This is really just a make-shift UI for me to test the debugger functions, so I
don't think i need all the error handling of an end-user feature. Agree?

+    free(bpt_line);
+    Dart_Breakpoint bpt;
+    result = Dart_SetBreakpointAtLine(url, line_number, &bpt);
+  } else {
+    char* bpt_function = strdup(breakpoint_at);
+    Dart_Handle class_name;
+    Dart_Handle function_name;
+    char* dot = strchr(bpt_function, '.');
+    if (dot == NULL) {
+      class_name = Dart_NewString("");
+      function_name = Dart_NewString(breakpoint_at);
+    } else {
+      *dot = '\0';
+      class_name = Dart_NewString(bpt_function);
+      function_name = Dart_NewString(dot + 1);

[siva, 2012/01/18 01:32:03]

We may want to protect against input strings of the form "myclass."

[hausner, 2012/01/18 23:26:38]

Ditto

+    }
+    free(bpt_function);
+    Dart_Breakpoint bpt;
+    result = Dart_SetBreakpointAtEntry(
+                 library, class_name, function_name, &bpt);
+  }
+  return result;
+}
+
+
 int main(int argc, char** argv) {
   char* script_name;
   CommandLineOptions vm_options(argc);
   CommandLineOptions dart_options(argc);
 
   // Perform platform specific initialization.
   if (!Platform::Initialize()) {
     fprintf(stderr, "Initialization failed\n");
   }
 
@@ skipping 74 matching lines @@
   Dart_Handle library = Dart_LookupLibrary(script_url);
   if (Dart_IsError(library)) {
     fprintf(stderr, "%s\n", Dart_GetError(library));
     Dart_ExitScope();
     Dart_ShutdownIsolate();
     free(canonical_script_name);
     return 255;  // Indicates we encountered an error.
   }
   // Set debug breakpoint if specified on the command line.
   if (breakpoint_at != NULL) {
-    char* bpt_function = strdup(breakpoint_at);
-    Dart_Handle class_name;
-    Dart_Handle function_name;
-    char* dot = strchr(bpt_function, '.');
-    if (dot == NULL) {
-      class_name = Dart_NewString("");
-      function_name = Dart_NewString(breakpoint_at);
-    } else {
-      *dot = '\0';
-      class_name = Dart_NewString(bpt_function);
-      function_name = Dart_NewString(dot + 1);
-    }
-    free(bpt_function);
-    Dart_Breakpoint bpt;
-    result = Dart_SetBreakpointAtEntry(
-                 library, class_name, function_name, &bpt);
+    result = SetBreakpoint(breakpoint_at, library);
     if (Dart_IsError(result)) {
       fprintf(stderr, "Error setting breakpoint at '%s': %s\n",
           breakpoint_at,
           Dart_GetError(result));
       Dart_ExitScope();
       Dart_ShutdownIsolate();
       free(canonical_script_name);
       return 255;  // Indicates we encountered an error.
     }
   }
@@ skipping 23 matching lines @@
   Dart_ExitScope();
   // Dump symbol information for the profiler.
   DumpPprofSymbolInfo();
   // Shutdown the isolate.
   Dart_ShutdownIsolate();
   // Terminate event handler.
   EventHandler::Terminate();
 
   return 0;
 }