Line data Source code
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 : #include "src/inspector/java-script-call-frame.h"
32 :
33 : #include "src/debug/debug-interface.h"
34 : #include "src/inspector/string-util.h"
35 :
36 : namespace v8_inspector {
37 :
38 191794 : JavaScriptCallFrame::JavaScriptCallFrame(v8::Local<v8::Context> debuggerContext,
39 : v8::Local<v8::Object> callFrame)
40 191794 : : m_isolate(debuggerContext->GetIsolate()),
41 : m_debuggerContext(m_isolate, debuggerContext),
42 575382 : m_callFrame(m_isolate, callFrame) {}
43 :
44 383588 : JavaScriptCallFrame::~JavaScriptCallFrame() {}
45 :
46 191418 : int JavaScriptCallFrame::callV8FunctionReturnInt(const char* name) const {
47 191418 : v8::HandleScope handleScope(m_isolate);
48 : v8::MicrotasksScope microtasks(m_isolate,
49 382836 : v8::MicrotasksScope::kDoNotRunMicrotasks);
50 : v8::Local<v8::Context> context =
51 382836 : v8::Local<v8::Context>::New(m_isolate, m_debuggerContext);
52 : v8::Local<v8::Object> callFrame =
53 191418 : v8::Local<v8::Object>::New(m_isolate, m_callFrame);
54 : v8::Local<v8::Function> func = v8::Local<v8::Function>::Cast(
55 382836 : callFrame->Get(context, toV8StringInternalized(m_isolate, name))
56 191418 : .ToLocalChecked());
57 : v8::Local<v8::Value> result;
58 574254 : if (!func->Call(context, callFrame, 0, nullptr).ToLocal(&result) ||
59 191418 : !result->IsInt32())
60 : return 0;
61 382836 : return result.As<v8::Int32>()->Value();
62 : }
63 :
64 191418 : int JavaScriptCallFrame::contextId() const {
65 191418 : return callV8FunctionReturnInt("contextId");
66 : }
67 :
68 0 : bool JavaScriptCallFrame::isAtReturn() const {
69 0 : v8::HandleScope handleScope(m_isolate);
70 : v8::Local<v8::Context> context =
71 0 : v8::Local<v8::Context>::New(m_isolate, m_debuggerContext);
72 : v8::Local<v8::Object> callFrame =
73 0 : v8::Local<v8::Object>::New(m_isolate, m_callFrame);
74 : v8::Local<v8::Value> result;
75 0 : if (!callFrame->Get(context, toV8StringInternalized(m_isolate, "isAtReturn"))
76 0 : .ToLocal(&result) ||
77 0 : !result->IsBoolean())
78 : return false;
79 0 : return result.As<v8::Boolean>()->BooleanValue(context).FromMaybe(false);
80 : }
81 :
82 191420 : v8::MaybeLocal<v8::Object> JavaScriptCallFrame::details() const {
83 : v8::MicrotasksScope microtasks(m_isolate,
84 191420 : v8::MicrotasksScope::kDoNotRunMicrotasks);
85 : v8::Local<v8::Context> context =
86 382840 : v8::Local<v8::Context>::New(m_isolate, m_debuggerContext);
87 : v8::Local<v8::Object> callFrame =
88 191420 : v8::Local<v8::Object>::New(m_isolate, m_callFrame);
89 : v8::Local<v8::Function> func = v8::Local<v8::Function>::Cast(
90 382840 : callFrame->Get(context, toV8StringInternalized(m_isolate, "details"))
91 191420 : .ToLocalChecked());
92 382840 : v8::TryCatch try_catch(m_isolate);
93 : v8::Local<v8::Value> details;
94 382840 : if (func->Call(context, callFrame, 0, nullptr).ToLocal(&details)) {
95 191418 : return v8::Local<v8::Object>::Cast(details);
96 : }
97 191422 : return v8::MaybeLocal<v8::Object>();
98 : }
99 :
100 14234 : v8::MaybeLocal<v8::Value> JavaScriptCallFrame::evaluate(
101 : v8::Local<v8::Value> expression, bool throwOnSideEffect) {
102 : v8::MicrotasksScope microtasks(m_isolate,
103 14234 : v8::MicrotasksScope::kRunMicrotasks);
104 : v8::Local<v8::Context> context =
105 28468 : v8::Local<v8::Context>::New(m_isolate, m_debuggerContext);
106 : v8::Local<v8::Object> callFrame =
107 14234 : v8::Local<v8::Object>::New(m_isolate, m_callFrame);
108 : v8::Local<v8::Function> evalFunction = v8::Local<v8::Function>::Cast(
109 28468 : callFrame->Get(context, toV8StringInternalized(m_isolate, "evaluate"))
110 14234 : .ToLocalChecked());
111 : v8::Local<v8::Value> argv[] = {
112 14234 : expression, v8::Boolean::New(m_isolate, throwOnSideEffect)};
113 14234 : return evalFunction->Call(context, callFrame, arraysize(argv), argv);
114 : }
115 :
116 154 : v8::MaybeLocal<v8::Value> JavaScriptCallFrame::restart() {
117 : v8::MicrotasksScope microtasks(m_isolate,
118 154 : v8::MicrotasksScope::kDoNotRunMicrotasks);
119 : v8::Local<v8::Context> context =
120 308 : v8::Local<v8::Context>::New(m_isolate, m_debuggerContext);
121 : v8::Local<v8::Object> callFrame =
122 154 : v8::Local<v8::Object>::New(m_isolate, m_callFrame);
123 : v8::Local<v8::Function> restartFunction = v8::Local<v8::Function>::Cast(
124 308 : callFrame->Get(context, toV8StringInternalized(m_isolate, "restart"))
125 154 : .ToLocalChecked());
126 308 : v8::TryCatch try_catch(m_isolate);
127 154 : v8::debug::SetLiveEditEnabled(m_isolate, true);
128 : v8::MaybeLocal<v8::Value> result = restartFunction->Call(
129 308 : m_debuggerContext.Get(m_isolate), callFrame, 0, nullptr);
130 154 : v8::debug::SetLiveEditEnabled(m_isolate, false);
131 308 : return result;
132 : }
133 :
134 170 : v8::MaybeLocal<v8::Value> JavaScriptCallFrame::setVariableValue(
135 : int scopeNumber, v8::Local<v8::Value> variableName,
136 : v8::Local<v8::Value> newValue) {
137 : v8::MicrotasksScope microtasks(m_isolate,
138 170 : v8::MicrotasksScope::kDoNotRunMicrotasks);
139 : v8::Local<v8::Context> context =
140 340 : v8::Local<v8::Context>::New(m_isolate, m_debuggerContext);
141 : v8::Local<v8::Object> callFrame =
142 170 : v8::Local<v8::Object>::New(m_isolate, m_callFrame);
143 : v8::Local<v8::Function> setVariableValueFunction =
144 : v8::Local<v8::Function>::Cast(
145 : callFrame
146 : ->Get(context,
147 340 : toV8StringInternalized(m_isolate, "setVariableValue"))
148 170 : .ToLocalChecked());
149 : v8::Local<v8::Value> argv[] = {
150 : v8::Local<v8::Value>(v8::Integer::New(m_isolate, scopeNumber)),
151 340 : variableName, newValue};
152 340 : v8::TryCatch try_catch(m_isolate);
153 : return setVariableValueFunction->Call(context, callFrame, arraysize(argv),
154 340 : argv);
155 : }
156 :
157 : } // namespace v8_inspector
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