- Write the coverage data to a file instead of printing to stdout.

runtime/vm/object.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 "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 46 matching lines @@
     "Throw an exception when the result of an integer calculation will not "
     "fit into a javascript integer.");
 DECLARE_FLAG(bool, eliminate_type_checks);
 DECLARE_FLAG(bool, enable_type_checks);
 DECLARE_FLAG(bool, error_on_bad_override);
 DECLARE_FLAG(bool, error_on_bad_type);
 DECLARE_FLAG(bool, trace_compiler);
 DECLARE_FLAG(bool, trace_deoptimization);
 DECLARE_FLAG(bool, trace_deoptimization_verbose);
 DECLARE_FLAG(bool, verbose_stacktrace);
-DECLARE_FLAG(bool, print_coverage);
+DECLARE_FLAG(charp, coverage_dir);
 
 static const char* kGetterPrefix = "get:";
 static const intptr_t kGetterPrefixLength = strlen(kGetterPrefix);
 static const char* kSetterPrefix = "set:";
 static const intptr_t kSetterPrefixLength = strlen(kSetterPrefix);
 
 cpp_vtable Object::handle_vtable_ = 0;
 cpp_vtable Object::builtin_vtables_[kNumPredefinedCids] = { 0 };
 cpp_vtable Smi::handle_vtable_ = 0;
 
@@ skipping 4081 matching lines @@
 void Function::SetNumOptionalParameters(intptr_t num_optional_parameters,
                                         bool are_optional_positional) const {
   ASSERT(num_optional_parameters >= 0);
   set_num_optional_parameters(are_optional_positional ?
                               num_optional_parameters :
                               -num_optional_parameters);
 }
 
 
 bool Function::is_optimizable() const {
-  if (FLAG_print_coverage) {
+  if (FLAG_coverage_dir != NULL) {
+    // Do not optimize if collecting coverage data.
     return false;
   }
   if (OptimizableBit::decode(raw_ptr()->kind_tag_) &&
       (script() != Script::null()) &&
       ((end_token_pos() - token_pos()) < FLAG_huge_method_cutoff_in_tokens)) {
     // Additional check needed for implicit getters.
     if (HasCode() &&
        (Code::Handle(unoptimized_code()).Size() >=
         FLAG_huge_method_cutoff_in_code_size)) {
       return false;
@@ skipping 10856 matching lines @@
   return "_MirrorReference";
 }
 
 
 void MirrorReference::PrintToJSONStream(JSONStream* stream, bool ref) const {
   JSONObject jsobj(stream);
 }
 
 
 }  // namespace dart