Upgrade to v8 1.2.7

1 files changed, 33 insertions, 16 deletions

diff --git a/deps/v8/src/compiler.cc b/deps/v8/src/compiler.cc
index 256c69696..ea7c134da 100644
--- a/deps/v8/src/compiler.cc
+++ b/deps/v8/src/compiler.cc
@@ -37,7 +37,8 @@
 #include "scopes.h"
 #include "usage-analyzer.h"
 
-namespace v8 { namespace internal {
+namespace v8 {
+namespace internal {
 
 static Handle<Code> MakeCode(FunctionLiteral* literal,
                              Handle<Script> script,
@@ -52,12 +53,15 @@ static Handle<Code> MakeCode(FunctionLiteral* literal,
     return Handle<Code>::null();
   }
 
-  // Compute top scope and allocate variables. For lazy compilation
-  // the top scope only contains the single lazily compiled function,
-  // so this doesn't re-allocate variables repeatedly.
-  Scope* top = literal->scope();
-  while (top->outer_scope() != NULL) top = top->outer_scope();
-  top->AllocateVariables(context);
+  {
+    // Compute top scope and allocate variables. For lazy compilation
+    // the top scope only contains the single lazily compiled function,
+    // so this doesn't re-allocate variables repeatedly.
+    HistogramTimerScope timer(&Counters::variable_allocation);
+    Scope* top = literal->scope();
+    while (top->outer_scope() != NULL) top = top->outer_scope();
+    top->AllocateVariables(context);
+  }
 
 #ifdef DEBUG
   if (Bootstrapper::IsActive() ?
@@ -86,7 +90,7 @@ static bool IsValidJSON(FunctionLiteral* lit) {
   Statement* stmt = lit->body()->at(0);
   if (stmt->AsExpressionStatement() == NULL)
     return false;
-  Expression *expr = stmt->AsExpressionStatement()->expression();
+  Expression* expr = stmt->AsExpressionStatement()->expression();
   return expr->IsValidJSON();
 }
 
@@ -98,7 +102,7 @@ static Handle<JSFunction> MakeFunction(bool is_global,
                                        Handle<Context> context,
                                        v8::Extension* extension,
                                        ScriptDataImpl* pre_data) {
-  ZoneScope zone_scope(DELETE_ON_EXIT);
+  CompilationZoneScope zone_scope(DELETE_ON_EXIT);
 
   // Make sure we have an initial stack limit.
   StackGuard guard;
@@ -106,7 +110,22 @@ static Handle<JSFunction> MakeFunction(bool is_global,
 
   ASSERT(!i::Top::global_context().is_null());
   script->set_context_data((*i::Top::global_context())->data());
+
 #ifdef ENABLE_DEBUGGER_SUPPORT
+  if (is_eval || is_json) {
+    script->set_compilation_type(
+        is_json ? Smi::FromInt(Script::COMPILATION_TYPE_JSON) :
+                               Smi::FromInt(Script::COMPILATION_TYPE_EVAL));
+    // For eval scripts add information on the function from which eval was
+    // called.
+    if (is_eval) {
+      JavaScriptFrameIterator it;
+      script->set_eval_from_function(it.frame()->function());
+      int offset = it.frame()->pc() - it.frame()->code()->instruction_start();
+      script->set_eval_from_instructions_offset(Smi::FromInt(offset));
+    }
+  }
+
   // Notify debugger
   Debugger::OnBeforeCompile(script);
 #endif
@@ -156,7 +175,7 @@ static Handle<JSFunction> MakeFunction(bool is_global,
 #if defined ENABLE_LOGGING_AND_PROFILING || defined ENABLE_OPROFILE_AGENT
   // Log the code generation for the script. Check explicit whether logging is
   // to avoid allocating when not required.
-  if (Logger::is_enabled() || OProfileAgent::is_enabled()) {
+  if (Logger::IsEnabled() || OProfileAgent::is_enabled()) {
     if (script->name()->IsString()) {
       SmartPointer<char> data =
           String::cast(script->name())->ToCString(DISALLOW_NULLS);
@@ -264,7 +283,6 @@ Handle<JSFunction> Compiler::Compile(Handle<String> source,
 
 Handle<JSFunction> Compiler::CompileEval(Handle<String> source,
                                          Handle<Context> context,
-                                         int line_offset,
                                          bool is_global,
                                          bool is_json) {
   int source_length = source->length();
@@ -284,7 +302,6 @@ Handle<JSFunction> Compiler::CompileEval(Handle<String> source,
   if (result.is_null()) {
     // Create a script object describing the script to be compiled.
     Handle<Script> script = Factory::NewScript(source);
-    script->set_line_offset(Smi::FromInt(line_offset));
     result = MakeFunction(is_global,
                           true,
                           is_json,
@@ -303,7 +320,7 @@ Handle<JSFunction> Compiler::CompileEval(Handle<String> source,
 
 bool Compiler::CompileLazy(Handle<SharedFunctionInfo> shared,
                            int loop_nesting) {
-  ZoneScope zone_scope(DELETE_ON_EXIT);
+  CompilationZoneScope zone_scope(DELETE_ON_EXIT);
 
   // The VM is in the COMPILER state until exiting this function.
   VMState state(COMPILER);
@@ -355,9 +372,9 @@ bool Compiler::CompileLazy(Handle<SharedFunctionInfo> shared,
   // Log the code generation. If source information is available include script
   // name and line number. Check explicit whether logging is enabled as finding
   // the line number is not for free.
-  if (Logger::is_enabled() || OProfileAgent::is_enabled()) {
-    Handle<String> func_name(lit->name()->length() > 0 ?
-                             *lit->name() : shared->inferred_name());
+  if (Logger::IsEnabled() || OProfileAgent::is_enabled()) {
+    Handle<String> func_name(name->length() > 0 ?
+                             *name : shared->inferred_name());
     if (script->name()->IsString()) {
       int line_num = GetScriptLineNumber(script, start_position);
       if (line_num > 0) {