| /* |
| * Copyright 2016 Google Inc. All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "cobalt/script/mozjs/util/exception_helpers.h" |
| |
| #include <algorithm> |
| |
| #include "cobalt/script/mozjs/conversion_helpers.h" |
| #include "cobalt/script/mozjs/mozjs_exception_state.h" |
| #include "third_party/mozjs/js/src/jsdbgapi.h" |
| #include "third_party/mozjs/js/src/jsscript.h" |
| |
| namespace cobalt { |
| namespace script { |
| namespace mozjs { |
| namespace util { |
| std::vector<StackFrame> GetStackTrace(JSContext* context, int max_frames) { |
| JS::StackDescription* stack_description = |
| JS::DescribeStack(context, max_frames); |
| if (max_frames == 0) { |
| max_frames = static_cast<int>(stack_description->nframes); |
| } else { |
| max_frames = |
| std::min(max_frames, static_cast<int>(stack_description->nframes)); |
| } |
| JS::FrameDescription* stack_trace = stack_description->frames; |
| std::vector<StackFrame> stack_frames(max_frames); |
| for (int i = 0; i < max_frames; ++i) { |
| StackFrame sf; |
| sf.line_number = stack_trace[i].lineno; |
| sf.column_number = stack_trace[i].columnno; |
| sf.function_name = "global code"; |
| if (stack_trace[i].fun) { |
| JS::RootedString rooted_string(context, |
| JS_GetFunctionId(stack_trace[i].fun)); |
| JS::RootedValue rooted_value(context, STRING_TO_JSVAL(rooted_string)); |
| MozjsExceptionState exception_state(context); |
| FromJSValue(context, rooted_value, kNoConversionFlags, &exception_state, |
| &sf.function_name); |
| } |
| if (stack_trace[i].script) { |
| sf.source_url = stack_trace[i].script->filename(); |
| } |
| stack_frames[i] = sf; |
| } |
| JS::FreeStackDescription(context, stack_description); |
| return stack_frames; |
| } |
| } // namespace util |
| } // namespace mozjs |
| } // namespace script |
| } // namespace cobalt |