Expose functionality to create a stack trace to internal vm code.

runtime/vm/flow_graph_builder.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/flow_graph_builder.h"
 
 #include "lib/invocation_mirror.h"
 #include "vm/ast_printer.h"
 #include "vm/bit_vector.h"
 #include "vm/class_finalizer.h"
@@ skipping 186 matching lines @@
     }
     return case_targets_[i];
   }
   return NULL;
 }
 
 
 FlowGraphBuilder::FlowGraphBuilder(ParsedFunction* parsed_function,
                                    const Array& ic_data_array,
                                    InlineExitCollector* exit_collector,
-                                   intptr_t osr_id)
+                                   intptr_t osr_id,
+                                   bool is_optimizing)
   : parsed_function_(parsed_function),
     ic_data_array_(ic_data_array),
     num_copied_params_(parsed_function->num_copied_params()),
     // All parameters are copied if any parameter is.
     num_non_copied_params_((num_copied_params_ == 0)
         ? parsed_function->function().num_fixed_parameters()
         : 0),
     num_stack_locals_(parsed_function->num_stack_locals()),
     exit_collector_(exit_collector),
     guarded_fields_(new ZoneGrowableArray<const Field*>()),
     last_used_block_id_(0),  // 0 is used for the graph entry.
     try_index_(CatchClauseNode::kInvalidTryIndex),
     catch_try_index_(CatchClauseNode::kInvalidTryIndex),
     loop_depth_(0),
     graph_entry_(NULL),
     temp_count_(0),
     args_pushed_(0),
     nesting_stack_(NULL),
-    osr_id_(osr_id) { }
+    osr_id_(osr_id),
+    is_optimizing_(is_optimizing) { }
 
 
 void FlowGraphBuilder::AddCatchEntry(CatchBlockEntryInstr* entry) {
   graph_entry_->AddCatchEntry(entry);
 }
 
 
 void InlineExitCollector::PrepareGraphs(FlowGraph* callee_graph) {
   ASSERT(callee_graph->graph_entry()->SuccessorCount() == 1);
   ASSERT(callee_graph->max_block_id() > caller_graph_->max_block_id());
@@ skipping 3602 matching lines @@
 
 void FlowGraphBuilder::PruneUnreachable() {
   ASSERT(osr_id_ != Isolate::kNoDeoptId);
   BitVector* block_marks = new BitVector(last_used_block_id_ + 1);
   bool found = graph_entry_->PruneUnreachable(this, graph_entry_, NULL, osr_id_,
                                               block_marks);
   ASSERT(found);
 }
 
 
-void FlowGraphBuilder::Bailout(const char* reason) {
+void FlowGraphBuilder::Bailout(const char* reason) const {
   const Function& function = parsed_function_->function();
   const Error& error = Error::Handle(
       LanguageError::NewFormatted(Error::Handle(),  // No previous error.
                                   Script::Handle(function.script()),
                                   function.token_pos(),
                                   LanguageError::kError,
                                   Heap::kNew,
                                   "FlowGraphBuilder Bailout: %s %s",
                                   String::Handle(function.name()).ToCString(),
                                   reason));
   Isolate::Current()->long_jump_base()->Jump(1, error);
 }
 
-
 }  // namespace dart