| /* |
| * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "third_party/blink/renderer/platform/bindings/v8_binding.h" |
| |
| #include "third_party/blink/renderer/platform/bindings/v8_binding_macros.h" |
| |
| namespace blink { |
| |
| v8::Local<v8::Function> GetBoundFunction(v8::Local<v8::Function> function) { |
| v8::Local<v8::Value> bound_function = function->GetBoundFunction(); |
| return bound_function->IsFunction() |
| ? v8::Local<v8::Function>::Cast(bound_function) |
| : function; |
| } |
| |
| v8::Local<v8::Value> FreezeV8Object(v8::Local<v8::Value> value, |
| v8::Isolate* isolate) { |
| value.As<v8::Object>() |
| ->SetIntegrityLevel(isolate->GetCurrentContext(), |
| v8::IntegrityLevel::kFrozen) |
| .ToChecked(); |
| return value; |
| } |
| |
| String GetCurrentScriptUrl(int max_stack_depth) { |
| v8::Isolate* isolate = v8::Isolate::GetCurrent(); |
| DCHECK(isolate); |
| if (!isolate->InContext()) |
| return String(); |
| |
| // CurrentStackTrace is 10x faster than CaptureStackTrace if all that you need |
| // is the url of the script at the top of the stack. See crbug.com/1057211 for |
| // more detail. |
| v8::Local<v8::StackTrace> stack_trace = |
| v8::StackTrace::CurrentStackTrace(isolate, max_stack_depth); |
| if (stack_trace.IsEmpty()) |
| return String(); |
| for (int i = 0, frame_count = stack_trace->GetFrameCount(); i < frame_count; |
| ++i) { |
| v8::Local<v8::StackFrame> frame = stack_trace->GetFrame(isolate, i); |
| if (frame.IsEmpty()) |
| continue; |
| v8::Local<v8::String> script_name = frame->GetScriptNameOrSourceURL(); |
| if (script_name.IsEmpty() || !script_name->Length()) |
| continue; |
| return ToCoreString(script_name); |
| } |
| return String(); |
| } |
| |
| } // namespace blink |