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      1 /*
      2  * Copyright (c) 2010, Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef V8_INSPECTOR_JAVASCRIPTCALLFRAME_H_
     32 #define V8_INSPECTOR_JAVASCRIPTCALLFRAME_H_
     33 
     34 #include <memory>
     35 #include <vector>
     36 
     37 #include "src/base/macros.h"
     38 
     39 #include "include/v8.h"
     40 
     41 namespace v8_inspector {
     42 
     43 class JavaScriptCallFrame {
     44  public:
     45   static std::unique_ptr<JavaScriptCallFrame> create(
     46       v8::Local<v8::Context> debuggerContext, v8::Local<v8::Object> callFrame) {
     47     return std::unique_ptr<JavaScriptCallFrame>(
     48         new JavaScriptCallFrame(debuggerContext, callFrame));
     49   }
     50   ~JavaScriptCallFrame();
     51 
     52   int contextId() const;
     53 
     54   bool isAtReturn() const;
     55   v8::MaybeLocal<v8::Object> details() const;
     56 
     57   v8::MaybeLocal<v8::Value> evaluate(v8::Local<v8::Value> expression,
     58                                      bool throwOnSideEffect);
     59   v8::MaybeLocal<v8::Value> restart();
     60   v8::MaybeLocal<v8::Value> setVariableValue(int scopeNumber,
     61                                              v8::Local<v8::Value> variableName,
     62                                              v8::Local<v8::Value> newValue);
     63 
     64  private:
     65   JavaScriptCallFrame(v8::Local<v8::Context> debuggerContext,
     66                       v8::Local<v8::Object> callFrame);
     67 
     68   int callV8FunctionReturnInt(const char* name) const;
     69 
     70   v8::Isolate* m_isolate;
     71   v8::Global<v8::Context> m_debuggerContext;
     72   v8::Global<v8::Object> m_callFrame;
     73 
     74   DISALLOW_COPY_AND_ASSIGN(JavaScriptCallFrame);
     75 };
     76 
     77 using JavaScriptCallFrames = std::vector<std::unique_ptr<JavaScriptCallFrame>>;
     78 
     79 }  // namespace v8_inspector
     80 
     81 #endif  // V8_INSPECTOR_JAVASCRIPTCALLFRAME_H_
     82