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      1 /*
      2  * Copyright (C) 2009 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 #include "src/inspector/v8-function-call.h"
     32 
     33 #include "src/inspector/inspected-context.h"
     34 #include "src/inspector/string-util.h"
     35 #include "src/inspector/v8-debugger.h"
     36 #include "src/inspector/v8-inspector-impl.h"
     37 
     38 #include "include/v8-inspector.h"
     39 
     40 namespace v8_inspector {
     41 
     42 V8FunctionCall::V8FunctionCall(V8InspectorImpl* inspector,
     43                                v8::Local<v8::Context> context,
     44                                v8::Local<v8::Value> value, const String16& name)
     45     : m_inspector(inspector),
     46       m_context(context),
     47       m_name(toV8String(context->GetIsolate(), name)),
     48       m_value(value) {}
     49 
     50 void V8FunctionCall::appendArgument(v8::Local<v8::Value> value) {
     51   m_arguments.push_back(value);
     52 }
     53 
     54 void V8FunctionCall::appendArgument(const String16& argument) {
     55   m_arguments.push_back(toV8String(m_context->GetIsolate(), argument));
     56 }
     57 
     58 void V8FunctionCall::appendArgument(int argument) {
     59   m_arguments.push_back(v8::Number::New(m_context->GetIsolate(), argument));
     60 }
     61 
     62 void V8FunctionCall::appendArgument(bool argument) {
     63   m_arguments.push_back(argument ? v8::True(m_context->GetIsolate())
     64                                  : v8::False(m_context->GetIsolate()));
     65 }
     66 
     67 v8::Local<v8::Value> V8FunctionCall::call(bool& hadException,
     68                                           bool reportExceptions) {
     69   v8::TryCatch tryCatch(m_context->GetIsolate());
     70   tryCatch.SetVerbose(reportExceptions);
     71 
     72   v8::Local<v8::Value> result = callWithoutExceptionHandling();
     73   hadException = tryCatch.HasCaught();
     74   return result;
     75 }
     76 
     77 v8::Local<v8::Value> V8FunctionCall::callWithoutExceptionHandling() {
     78   v8::Local<v8::Object> thisObject = v8::Local<v8::Object>::Cast(m_value);
     79   v8::Local<v8::Value> value;
     80   if (!thisObject->Get(m_context, m_name).ToLocal(&value))
     81     return v8::Local<v8::Value>();
     82 
     83   DCHECK(value->IsFunction());
     84 
     85   v8::Local<v8::Function> function = v8::Local<v8::Function>::Cast(value);
     86   std::unique_ptr<v8::Local<v8::Value>[]> info(
     87       new v8::Local<v8::Value>[m_arguments.size()]);
     88   for (size_t i = 0; i < m_arguments.size(); ++i) {
     89     info[i] = m_arguments[i];
     90     DCHECK(!info[i].IsEmpty());
     91   }
     92 
     93   int contextGroupId = m_inspector->contextGroupId(m_context);
     94   if (contextGroupId) {
     95     m_inspector->client()->muteMetrics(contextGroupId);
     96     m_inspector->muteExceptions(contextGroupId);
     97   }
     98   v8::MicrotasksScope microtasksScope(m_context->GetIsolate(),
     99                                       v8::MicrotasksScope::kDoNotRunMicrotasks);
    100   v8::MaybeLocal<v8::Value> maybeResult = function->Call(
    101       m_context, thisObject, static_cast<int>(m_arguments.size()), info.get());
    102   if (contextGroupId) {
    103     m_inspector->client()->unmuteMetrics(contextGroupId);
    104     m_inspector->unmuteExceptions(contextGroupId);
    105   }
    106 
    107   v8::Local<v8::Value> result;
    108   if (!maybeResult.ToLocal(&result)) return v8::Local<v8::Value>();
    109   return result;
    110 }
    111 
    112 }  // namespace v8_inspector
    113