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// Copyright 2012 the V8 project authors. 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 <stdlib.h>
#include <set>
#include "src/v8.h"
#include "src/api.h"
#include "src/compilation-cache.h"
#include "src/debug/debug-interface.h"
#include "src/debug/debug.h"
#include "src/deoptimizer.h"
#include "src/frames.h"
#include "src/objects-inl.h"
#include "src/utils.h"
#include "test/cctest/cctest.h"
using ::v8::internal::EmbeddedVector;
using ::v8::internal::Object;
using ::v8::internal::Handle;
using ::v8::internal::Heap;
using ::v8::internal::JSGlobalProxy;
using ::v8::internal::Code;
using ::v8::internal::Debug;
using ::v8::internal::StackFrame;
using ::v8::internal::StepAction;
using ::v8::internal::StepIn; // From StepAction enum
using ::v8::internal::StepNext; // From StepAction enum
using ::v8::internal::StepOut; // From StepAction enum
using ::v8::internal::Vector;
using ::v8::internal::StrLength;
// Size of temp buffer for formatting small strings.
#define SMALL_STRING_BUFFER_SIZE 80
// --- H e l p e r C l a s s e s
// Helper class for creating a V8 enviromnent for running tests
class DebugLocalContext {
public:
inline DebugLocalContext(
v8::Isolate* isolate, v8::ExtensionConfiguration* extensions = 0,
v8::Local<v8::ObjectTemplate> global_template =
v8::Local<v8::ObjectTemplate>(),
v8::Local<v8::Value> global_object = v8::Local<v8::Value>())
: scope_(isolate),
context_(v8::Context::New(isolate, extensions, global_template,
global_object)) {
context_->Enter();
}
inline DebugLocalContext(
v8::ExtensionConfiguration* extensions = 0,
v8::Local<v8::ObjectTemplate> global_template =
v8::Local<v8::ObjectTemplate>(),
v8::Local<v8::Value> global_object = v8::Local<v8::Value>())
: scope_(CcTest::isolate()),
context_(v8::Context::New(CcTest::isolate(), extensions,
global_template, global_object)) {
context_->Enter();
}
inline ~DebugLocalContext() {
context_->Exit();
}
inline v8::Local<v8::Context> context() { return context_; }
inline v8::Context* operator->() { return *context_; }
inline v8::Context* operator*() { return *context_; }
inline v8::Isolate* GetIsolate() { return context_->GetIsolate(); }
inline bool IsReady() { return !context_.IsEmpty(); }
void ExposeDebug() {
v8::internal::Isolate* isolate =
reinterpret_cast<v8::internal::Isolate*>(context_->GetIsolate());
v8::internal::Factory* factory = isolate->factory();
// Expose the debug context global object in the global object for testing.
CHECK(isolate->debug()->Load());
Handle<v8::internal::Context> debug_context =
isolate->debug()->debug_context();
debug_context->set_security_token(
v8::Utils::OpenHandle(*context_)->security_token());
Handle<JSGlobalProxy> global(Handle<JSGlobalProxy>::cast(
v8::Utils::OpenHandle(*context_->Global())));
Handle<v8::internal::String> debug_string =
factory->InternalizeOneByteString(STATIC_CHAR_VECTOR("debug"));
v8::internal::JSObject::SetOwnPropertyIgnoreAttributes(
global, debug_string, handle(debug_context->global_proxy()),
v8::internal::DONT_ENUM)
.Check();
}
private:
v8::HandleScope scope_;
v8::Local<v8::Context> context_;
};
// --- H e l p e r F u n c t i o n s
// Compile and run the supplied source and return the requested function.
static v8::Local<v8::Function> CompileFunction(v8::Isolate* isolate,
const char* source,
const char* function_name) {
CompileRunChecked(isolate, source);
v8::Local<v8::String> name = v8_str(isolate, function_name);
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::MaybeLocal<v8::Value> maybe_function =
context->Global()->Get(context, name);
return v8::Local<v8::Function>::Cast(maybe_function.ToLocalChecked());
}
// Compile and run the supplied source and return the requested function.
static v8::Local<v8::Function> CompileFunction(DebugLocalContext* env,
const char* source,
const char* function_name) {
return CompileFunction(env->GetIsolate(), source, function_name);
}
static void SetDebugEventListener(
v8::Isolate* isolate, v8::Debug::EventCallback that,
v8::Local<v8::Value> data = v8::Local<v8::Value>()) {
i::Isolate* i_isolate = reinterpret_cast<i::Isolate*>(isolate);
i::HandleScope scope(i_isolate);
if (that == nullptr) {
i_isolate->debug()->SetDebugDelegate(nullptr, false);
} else {
i::Handle<i::Object> i_data = i_isolate->factory()->undefined_value();
if (!data.IsEmpty()) i_data = v8::Utils::OpenHandle(*data);
i::NativeDebugDelegate* delegate =
new i::NativeDebugDelegate(i_isolate, that, i_data);
i_isolate->debug()->SetDebugDelegate(delegate, true);
}
}
// Is there any debug info for the function?
static bool HasBreakInfo(v8::Local<v8::Function> fun) {
Handle<v8::internal::JSFunction> f =
Handle<v8::internal::JSFunction>::cast(v8::Utils::OpenHandle(*fun));
Handle<v8::internal::SharedFunctionInfo> shared(f->shared());
return shared->HasBreakInfo();
}
// Set a break point in a function with a position relative to function start,
// and return the associated break point number.
static int SetBreakPoint(v8::Local<v8::Function> fun, int position) {
i::Handle<i::JSFunction> function =
i::Handle<i::JSFunction>::cast(v8::Utils::OpenHandle(*fun));
position += function->shared()->start_position();
static int break_point = 0;
v8::internal::Isolate* isolate = function->GetIsolate();
v8::internal::Debug* debug = isolate->debug();
debug->SetBreakPoint(
function,
Handle<Object>(v8::internal::Smi::FromInt(++break_point), isolate),
&position);
return break_point;
}
// Set a break point in a function using the Debug object and return the
// associated break point number.
static int SetBreakPointFromJS(v8::Isolate* isolate,
const char* function_name,
int line, int position) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
SNPrintF(buffer,
"debug.Debug.setBreakPoint(%s,%d,%d)",
function_name, line, position);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
v8::Local<v8::Value> value = CompileRunChecked(isolate, buffer.start());
return value->Int32Value(isolate->GetCurrentContext()).FromJust();
}
// Set a break point in a script identified by id using the global Debug object.
static int SetScriptBreakPointByIdFromJS(v8::Isolate* isolate, int script_id,
int line, int column) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
if (column >= 0) {
// Column specified set script break point on precise location.
SNPrintF(buffer,
"debug.Debug.setScriptBreakPointById(%d,%d,%d)",
script_id, line, column);
} else {
// Column not specified set script break point on line.
SNPrintF(buffer,
"debug.Debug.setScriptBreakPointById(%d,%d)",
script_id, line);
}
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
{
v8::TryCatch try_catch(isolate);
v8::Local<v8::Value> value = CompileRunChecked(isolate, buffer.start());
CHECK(!try_catch.HasCaught());
return value->Int32Value(isolate->GetCurrentContext()).FromJust();
}
}
// Set a break point in a script identified by name using the global Debug
// object.
static int SetScriptBreakPointByNameFromJS(v8::Isolate* isolate,
const char* script_name, int line,
int column) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
if (column >= 0) {
// Column specified set script break point on precise location.
SNPrintF(buffer,
"debug.Debug.setScriptBreakPointByName(\"%s\",%d,%d)",
script_name, line, column);
} else {
// Column not specified set script break point on line.
SNPrintF(buffer,
"debug.Debug.setScriptBreakPointByName(\"%s\",%d)",
script_name, line);
}
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
{
v8::TryCatch try_catch(isolate);
v8::Local<v8::Value> value = CompileRunChecked(isolate, buffer.start());
CHECK(!try_catch.HasCaught());
return value->Int32Value(isolate->GetCurrentContext()).FromJust();
}
}
// Clear a break point.
static void ClearBreakPoint(int break_point) {
v8::internal::Isolate* isolate = CcTest::i_isolate();
v8::internal::Debug* debug = isolate->debug();
debug->ClearBreakPoint(
Handle<Object>(v8::internal::Smi::FromInt(break_point), isolate));
}
// Clear a break point using the global Debug object.
static void ClearBreakPointFromJS(v8::Isolate* isolate,
int break_point_number) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
SNPrintF(buffer,
"debug.Debug.clearBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
CompileRunChecked(isolate, buffer.start());
}
static void EnableScriptBreakPointFromJS(v8::Isolate* isolate,
int break_point_number) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
SNPrintF(buffer,
"debug.Debug.enableScriptBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
CompileRunChecked(isolate, buffer.start());
}
static void DisableScriptBreakPointFromJS(v8::Isolate* isolate,
int break_point_number) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
SNPrintF(buffer,
"debug.Debug.disableScriptBreakPoint(%d)",
break_point_number);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
CompileRunChecked(isolate, buffer.start());
}
static void ChangeScriptBreakPointConditionFromJS(v8::Isolate* isolate,
int break_point_number,
const char* condition) {
EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer;
SNPrintF(buffer,
"debug.Debug.changeScriptBreakPointCondition(%d, \"%s\")",
break_point_number, condition);
buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0';
CompileRunChecked(isolate, buffer.start());
}
// Change break on exception.
static void ChangeBreakOnException(bool caught, bool uncaught) {
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
debug->ChangeBreakOnException(v8::internal::BreakException, caught);
debug->ChangeBreakOnException(v8::internal::BreakUncaughtException, uncaught);
}
// Change break on exception using the global Debug object.
static void ChangeBreakOnExceptionFromJS(v8::Isolate* isolate, bool caught,
bool uncaught) {
if (caught) {
CompileRunChecked(isolate, "debug.Debug.setBreakOnException()");
} else {
CompileRunChecked(isolate, "debug.Debug.clearBreakOnException()");
}
if (uncaught) {
CompileRunChecked(isolate, "debug.Debug.setBreakOnUncaughtException()");
} else {
CompileRunChecked(isolate, "debug.Debug.clearBreakOnUncaughtException()");
}
}
// Change break on exception using the native API call.
static void ChangeBreakOnExceptionFromAPI(
v8::Isolate* isolate, v8::debug::ExceptionBreakState state) {
v8::debug::ChangeBreakOnException(isolate, state);
}
// Prepare to step to next break location.
static void PrepareStep(StepAction step_action) {
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
debug->PrepareStep(step_action);
}
static void ClearStepping() { CcTest::i_isolate()->debug()->ClearStepping(); }
// This function is in namespace v8::internal to be friend with class
// v8::internal::Debug.
namespace v8 {
namespace internal {
// Collect the currently debugged functions.
Handle<FixedArray> GetDebuggedFunctions() {
Debug* debug = CcTest::i_isolate()->debug();
v8::internal::DebugInfoListNode* node = debug->debug_info_list_;
// Find the number of debugged functions.
int count = 0;
while (node) {
count++;
node = node->next();
}
// Allocate array for the debugged functions
Handle<FixedArray> debugged_functions =
CcTest::i_isolate()->factory()->NewFixedArray(count);
// Run through the debug info objects and collect all functions.
count = 0;
while (node) {
debugged_functions->set(count++, *node->debug_info());
node = node->next();
}
return debugged_functions;
}
// Check that the debugger has been fully unloaded.
void CheckDebuggerUnloaded() {
// Check that the debugger context is cleared and that there is no debug
// information stored for the debugger.
CHECK(CcTest::i_isolate()->debug()->debug_context().is_null());
CHECK(!CcTest::i_isolate()->debug()->debug_info_list_);
// Collect garbage to ensure weak handles are cleared.
CcTest::CollectAllGarbage();
CcTest::CollectAllGarbage(Heap::kMakeHeapIterableMask);
// Iterate the heap and check that there are no debugger related objects left.
HeapIterator iterator(CcTest::heap());
for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {
CHECK(!obj->IsDebugInfo());
}
}
} // namespace internal
} // namespace v8
// Check that the debugger has been fully unloaded.
static void CheckDebuggerUnloaded() { v8::internal::CheckDebuggerUnloaded(); }
// --- D e b u g E v e n t H a n d l e r s
// ---
// --- The different tests uses a number of debug event handlers.
// ---
// Source for the JavaScript function which picks out the function
// name of a frame.
const char* frame_function_name_source =
"function frame_function_name(exec_state, frame_number) {"
" return exec_state.frame(frame_number).func().name();"
"}";
v8::Local<v8::Function> frame_function_name;
// Source for the JavaScript function which pick out the name of the
// first argument of a frame.
const char* frame_argument_name_source =
"function frame_argument_name(exec_state, frame_number) {"
" return exec_state.frame(frame_number).argumentName(0);"
"}";
v8::Local<v8::Function> frame_argument_name;
// Source for the JavaScript function which pick out the value of the
// first argument of a frame.
const char* frame_argument_value_source =
"function frame_argument_value(exec_state, frame_number) {"
" return exec_state.frame(frame_number).argumentValue(0).value_;"
"}";
v8::Local<v8::Function> frame_argument_value;
// Source for the JavaScript function which pick out the name of the
// first argument of a frame.
const char* frame_local_name_source =
"function frame_local_name(exec_state, frame_number) {"
" return exec_state.frame(frame_number).localName(0);"
"}";
v8::Local<v8::Function> frame_local_name;
// Source for the JavaScript function which pick out the value of the
// first argument of a frame.
const char* frame_local_value_source =
"function frame_local_value(exec_state, frame_number) {"
" return exec_state.frame(frame_number).localValue(0).value_;"
"}";
v8::Local<v8::Function> frame_local_value;
// Source for the JavaScript function which picks out the source line for the
// top frame.
const char* frame_source_line_source =
"function frame_source_line(exec_state) {"
" return exec_state.frame(0).sourceLine();"
"}";
v8::Local<v8::Function> frame_source_line;
// Source for the JavaScript function which picks out the source column for the
// top frame.
const char* frame_source_column_source =
"function frame_source_column(exec_state) {"
" return exec_state.frame(0).sourceColumn();"
"}";
v8::Local<v8::Function> frame_source_column;
// Source for the JavaScript function which picks out the script name for the
// top frame.
const char* frame_script_name_source =
"function frame_script_name(exec_state) {"
" return exec_state.frame(0).func().script().name();"
"}";
v8::Local<v8::Function> frame_script_name;
// Source for the JavaScript function which returns the number of frames.
static const char* frame_count_source =
"function frame_count(exec_state) {"
" return exec_state.frameCount();"
"}";
v8::Local<v8::Function> frame_count;
// Global variable to store the last function hit - used by some tests.
char last_function_hit[80];
// Global variable to store the name for last script hit - used by some tests.
char last_script_name_hit[80];
// Global variables to store the last source position - used by some tests.
int last_source_line = -1;
int last_source_column = -1;
// Debug event handler which counts the break points which have been hit.
int break_point_hit_count = 0;
int break_point_hit_count_deoptimize = 0;
static void DebugEventBreakPointHitCount(
const v8::Debug::EventDetails& event_details) {
v8::DebugEvent event = event_details.GetEvent();
v8::Local<v8::Object> exec_state = event_details.GetExecutionState();
v8::Local<v8::Context> context = CcTest::isolate()->GetCurrentContext();
v8::internal::Isolate* isolate = CcTest::i_isolate();
Debug* debug = isolate->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
// Count the number of breaks.
if (event == v8::Break) {
break_point_hit_count++;
if (!frame_function_name.IsEmpty()) {
// Get the name of the function.
const int argc = 2;
v8::Local<v8::Value> argv[argc] = {
exec_state, v8::Integer::New(CcTest::isolate(), 0)};
v8::Local<v8::Value> result =
frame_function_name->Call(context, exec_state, argc, argv)
.ToLocalChecked();
if (result->IsUndefined()) {
last_function_hit[0] = '\0';
} else {
CHECK(result->IsString());
v8::Local<v8::String> function_name(result.As<v8::String>());
function_name->WriteUtf8(last_function_hit);
}
}
if (!frame_source_line.IsEmpty()) {
// Get the source line.
const int argc = 1;
v8::Local<v8::Value> argv[argc] = {exec_state};
v8::Local<v8::Value> result =
frame_source_line->Call(context, exec_state, argc, argv)
.ToLocalChecked();
CHECK(result->IsNumber());
last_source_line = result->Int32Value(context).FromJust();
}
if (!frame_source_column.IsEmpty()) {
// Get the source column.
const int argc = 1;
v8::Local<v8::Value> argv[argc] = {exec_state};
v8::Local<v8::Value> result =
frame_source_column->Call(context, exec_state, argc, argv)
.ToLocalChecked();
CHECK(result->IsNumber());
last_source_column = result->Int32Value(context).FromJust();
}
if (!frame_script_name.IsEmpty()) {
// Get the script name of the function script.
const int argc = 1;
v8::Local<v8::Value> argv[argc] = {exec_state};
v8::Local<v8::Value> result =
frame_script_name->Call(context, exec_state, argc, argv)
.ToLocalChecked();
if (result->IsUndefined()) {
last_script_name_hit[0] = '\0';
} else {
CHECK(result->IsString());
v8::Local<v8::String> script_name(result.As<v8::String>());
script_name->WriteUtf8(last_script_name_hit);
}
}
// Perform a full deoptimization when the specified number of
// breaks have been hit.
if (break_point_hit_count == break_point_hit_count_deoptimize) {
i::Deoptimizer::DeoptimizeAll(isolate);
}
}
}
// Debug event handler which counts a number of events and collects the stack
// height if there is a function compiled for that.
int exception_hit_count = 0;
int uncaught_exception_hit_count = 0;
int last_js_stack_height = -1;
v8::Local<v8::Function> debug_event_listener_callback;
int debug_event_listener_callback_result;
static void DebugEventCounterClear() {
break_point_hit_count = 0;
exception_hit_count = 0;
uncaught_exception_hit_count = 0;
}
static void DebugEventCounter(
const v8::Debug::EventDetails& event_details) {
v8::Isolate::AllowJavascriptExecutionScope allow_script(CcTest::isolate());
v8::DebugEvent event = event_details.GetEvent();
v8::Local<v8::Object> exec_state = event_details.GetExecutionState();
v8::Local<v8::Object> event_data = event_details.GetEventData();
v8::Local<v8::Context> context = CcTest::isolate()->GetCurrentContext();
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
// Count the number of breaks.
if (event == v8::Break) {
break_point_hit_count++;
} else if (event == v8::Exception) {
exception_hit_count++;
// Check whether the exception was uncaught.
v8::Local<v8::String> fun_name = v8_str(CcTest::isolate(), "uncaught");
v8::Local<v8::Function> fun = v8::Local<v8::Function>::Cast(
event_data->Get(context, fun_name).ToLocalChecked());
v8::Local<v8::Value> result =
fun->Call(context, event_data, 0, NULL).ToLocalChecked();
if (result->IsTrue()) {
uncaught_exception_hit_count++;
}
}
// Collect the JavsScript stack height if the function frame_count is
// compiled.
if (!frame_count.IsEmpty()) {
static const int kArgc = 1;
v8::Local<v8::Value> argv[kArgc] = {exec_state};
// Using exec_state as receiver is just to have a receiver.
v8::Local<v8::Value> result =
frame_count->Call(context, exec_state, kArgc, argv).ToLocalChecked();
last_js_stack_height = result->Int32Value(context).FromJust();
}
// Run callback from DebugEventListener and check the result.
if (!debug_event_listener_callback.IsEmpty()) {
v8::Local<v8::Value> result =
debug_event_listener_callback->Call(context, event_data, 0, NULL)
.ToLocalChecked();
CHECK(!result.IsEmpty());
CHECK_EQ(debug_event_listener_callback_result,
result->Int32Value(context).FromJust());
}
}
// Debug event handler which evaluates a number of expressions when a break
// point is hit. Each evaluated expression is compared with an expected value.
// For this debug event handler to work the following two global varaibles
// must be initialized.
// checks: An array of expressions and expected results
// evaluate_check_function: A JavaScript function (see below)
// Structure for holding checks to do.
struct EvaluateCheck {
const char* expr; // An expression to evaluate when a break point is hit.
v8::Local<v8::Value> expected; // The expected result.
};
// Array of checks to do.
struct EvaluateCheck* checks = NULL;
// Source for The JavaScript function which can do the evaluation when a break
// point is hit.
const char* evaluate_check_source =
"function evaluate_check(exec_state, expr, expected) {"
" return exec_state.frame(0).evaluate(expr).value() === expected;"
"}";
v8::Local<v8::Function> evaluate_check_function;
// The actual debug event described by the longer comment above.
static void DebugEventEvaluate(
const v8::Debug::EventDetails& event_details) {
v8::DebugEvent event = event_details.GetEvent();
v8::Local<v8::Object> exec_state = event_details.GetExecutionState();
v8::Isolate* isolate = CcTest::isolate();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
break_point_hit_count++;
for (int i = 0; checks[i].expr != NULL; i++) {
const int argc = 3;
v8::Local<v8::String> string = v8_str(isolate, checks[i].expr);
v8::Local<v8::Value> argv[argc] = {exec_state, string,
checks[i].expected};
v8::Local<v8::Value> result =
evaluate_check_function->Call(context, exec_state, argc, argv)
.ToLocalChecked();
if (!result->IsTrue()) {
v8::String::Utf8Value utf8(isolate, checks[i].expected);
V8_Fatal(__FILE__, __LINE__, "%s != %s", checks[i].expr, *utf8);
}
}
}
}
// This debug event listener removes a breakpoint in a function
int debug_event_remove_break_point = 0;
static void DebugEventRemoveBreakPoint(
const v8::Debug::EventDetails& event_details) {
v8::DebugEvent event = event_details.GetEvent();
v8::Local<v8::Value> data = event_details.GetCallbackData();
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
break_point_hit_count++;
CHECK(data->IsFunction());
ClearBreakPoint(debug_event_remove_break_point);
}
}
// Debug event handler which counts break points hit and performs a step
// afterwards.
StepAction step_action = StepIn; // Step action to perform when stepping.
static void DebugEventStep(
const v8::Debug::EventDetails& event_details) {
v8::DebugEvent event = event_details.GetEvent();
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
break_point_hit_count++;
PrepareStep(step_action);
}
}
// Debug event handler which counts break points hit and performs a step
// afterwards. For each call the expected function is checked.
// For this debug event handler to work the following two global varaibles
// must be initialized.
// expected_step_sequence: An array of the expected function call sequence.
// frame_function_name: A JavaScript function (see below).
// String containing the expected function call sequence. Note: this only works
// if functions have name length of one.
const char* expected_step_sequence = NULL;
// The actual debug event described by the longer comment above.
static void DebugEventStepSequence(
const v8::Debug::EventDetails& event_details) {
v8::DebugEvent event = event_details.GetEvent();
v8::Local<v8::Object> exec_state = event_details.GetExecutionState();
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break || event == v8::Exception) {
// Check that the current function is the expected.
CHECK(break_point_hit_count <
StrLength(expected_step_sequence));
const int argc = 2;
v8::Local<v8::Value> argv[argc] = {exec_state,
v8::Integer::New(CcTest::isolate(), 0)};
v8::Local<v8::Context> context = CcTest::isolate()->GetCurrentContext();
v8::Local<v8::Value> result =
frame_function_name->Call(context, exec_state, argc, argv)
.ToLocalChecked();
CHECK(result->IsString());
v8::String::Utf8Value function_name(
CcTest::isolate(), result->ToString(context).ToLocalChecked());
CHECK_EQ(1, StrLength(*function_name));
CHECK_EQ((*function_name)[0],
expected_step_sequence[break_point_hit_count]);
// Perform step.
break_point_hit_count++;
PrepareStep(step_action);
}
}
// Debug event handler which performs a garbage collection.
static void DebugEventBreakPointCollectGarbage(
const v8::Debug::EventDetails& event_details) {
v8::DebugEvent event = event_details.GetEvent();
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
// Perform a garbage collection when break point is hit and continue. Based
// on the number of break points hit either scavenge or mark compact
// collector is used.
if (event == v8::Break) {
break_point_hit_count++;
if (break_point_hit_count % 2 == 0) {
// Scavenge.
CcTest::CollectGarbage(v8::internal::NEW_SPACE);
} else {
// Mark sweep compact.
CcTest::CollectAllGarbage();
}
}
}
// Debug event handler which re-issues a debug break and calls the garbage
// collector to have the heap verified.
static void DebugEventBreak(
const v8::Debug::EventDetails& event_details) {
v8::DebugEvent event = event_details.GetEvent();
v8::internal::Debug* debug = CcTest::i_isolate()->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
// Count the number of breaks.
break_point_hit_count++;
// Run the garbage collector to enforce heap verification if option
// --verify-heap is set.
CcTest::CollectGarbage(v8::internal::NEW_SPACE);
// Set the break flag again to come back here as soon as possible.
v8::debug::DebugBreak(CcTest::isolate());
}
}
// Debug event handler which re-issues a debug break until a limit has been
// reached.
int max_break_point_hit_count = 0;
bool terminate_after_max_break_point_hit = false;
static void DebugEventBreakMax(
const v8::Debug::EventDetails& event_details) {
v8::DebugEvent event = event_details.GetEvent();
v8::Isolate* v8_isolate = CcTest::isolate();
v8::internal::Isolate* isolate = CcTest::i_isolate();
v8::internal::Debug* debug = isolate->debug();
// When hitting a debug event listener there must be a break set.
CHECK_NE(debug->break_id(), 0);
if (event == v8::Break) {
if (break_point_hit_count < max_break_point_hit_count) {
// Count the number of breaks.
break_point_hit_count++;
// Set the break flag again to come back here as soon as possible.
v8::debug::DebugBreak(v8_isolate);
} else if (terminate_after_max_break_point_hit) {
// Terminate execution after the last break if requested.
v8_isolate->TerminateExecution();
}
// Perform a full deoptimization when the specified number of
// breaks have been hit.
if (break_point_hit_count == break_point_hit_count_deoptimize) {
i::Deoptimizer::DeoptimizeAll(isolate);
}
}
}
// --- M e s s a g e C a l l b a c k
// Message callback which counts the number of messages.
int message_callback_count = 0;
static void MessageCallbackCountClear() {
message_callback_count = 0;
}
static void MessageCallbackCount(v8::Local<v8::Message> message,
v8::Local<v8::Value> data) {
message_callback_count++;
}
// --- T h e A c t u a l T e s t s
// Test that the debug info in the VM is in sync with the functions being
// debugged.
TEST(DebugInfo) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Create a couple of functions for the test.
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){}", "foo");
v8::Local<v8::Function> bar =
CompileFunction(&env, "function bar(){}", "bar");
// Initially no functions are debugged.
CHECK_EQ(0, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasBreakInfo(foo));
CHECK(!HasBreakInfo(bar));
EnableDebugger(env->GetIsolate());
// One function (foo) is debugged.
int bp1 = SetBreakPoint(foo, 0);
CHECK_EQ(1, v8::internal::GetDebuggedFunctions()->length());
CHECK(HasBreakInfo(foo));
CHECK(!HasBreakInfo(bar));
// Two functions are debugged.
int bp2 = SetBreakPoint(bar, 0);
CHECK_EQ(2, v8::internal::GetDebuggedFunctions()->length());
CHECK(HasBreakInfo(foo));
CHECK(HasBreakInfo(bar));
// One function (bar) is debugged.
ClearBreakPoint(bp1);
CHECK_EQ(1, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasBreakInfo(foo));
CHECK(HasBreakInfo(bar));
// No functions are debugged.
ClearBreakPoint(bp2);
DisableDebugger(env->GetIsolate());
CHECK_EQ(0, v8::internal::GetDebuggedFunctions()->length());
CHECK(!HasBreakInfo(foo));
CHECK(!HasBreakInfo(bar));
}
// Test that a break point can be set at an IC store location.
TEST(BreakPointICStore) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){bar=0;}", "foo");
// Run without breakpoints.
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at an IC load location.
TEST(BreakPointICLoad) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
CompileRunChecked(env->GetIsolate(), "bar=1");
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){var x=bar;}", "foo");
// Run without breakpoints.
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint.
int bp = SetBreakPoint(foo, 0);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at an IC call location.
TEST(BreakPointICCall) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
CompileRunChecked(env->GetIsolate(), "function bar(){}");
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){bar();}", "foo");
// Run without breakpoints.
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at an IC call location and survive a GC.
TEST(BreakPointICCallWithGC) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointCollectGarbage);
CompileRunChecked(env->GetIsolate(), "function bar(){return 1;}");
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){return bar();}", "foo");
v8::Local<v8::Context> context = env.context();
// Run without breakpoints.
CHECK_EQ(1, foo->Call(context, env->Global(), 0, NULL)
.ToLocalChecked()
->Int32Value(context)
.FromJust());
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint.
int bp = SetBreakPoint(foo, 0);
CHECK_EQ(1, foo->Call(context, env->Global(), 0, NULL)
.ToLocalChecked()
->Int32Value(context)
.FromJust());
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(1, foo->Call(context, env->Global(), 0, NULL)
.ToLocalChecked()
->Int32Value(context)
.FromJust());
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at an IC call location and survive a GC.
TEST(BreakPointConstructCallWithGC) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointCollectGarbage);
CompileRunChecked(env->GetIsolate(), "function bar(){ this.x = 1;}");
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){return new bar(1).x;}", "foo");
v8::Local<v8::Context> context = env.context();
// Run without breakpoints.
CHECK_EQ(1, foo->Call(context, env->Global(), 0, NULL)
.ToLocalChecked()
->Int32Value(context)
.FromJust());
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint.
int bp = SetBreakPoint(foo, 0);
CHECK_EQ(1, foo->Call(context, env->Global(), 0, NULL)
.ToLocalChecked()
->Int32Value(context)
.FromJust());
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(1, foo->Call(context, env->Global(), 0, NULL)
.ToLocalChecked()
->Int32Value(context)
.FromJust());
CHECK_EQ(2, break_point_hit_count);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that a break point can be set at a return store location.
TEST(BreakPointReturn) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Create a functions for checking the source line and column when hitting
// a break point.
frame_source_line = CompileFunction(&env,
frame_source_line_source,
"frame_source_line");
frame_source_column = CompileFunction(&env,
frame_source_column_source,
"frame_source_column");
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){}", "foo");
v8::Local<v8::Context> context = env.context();
// Run without breakpoints.
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Run with breakpoint
int bp = SetBreakPoint(foo, 0);
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(0, last_source_line);
CHECK_EQ(15, last_source_column);
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
CHECK_EQ(0, last_source_line);
CHECK_EQ(15, last_source_column);
// Run without breakpoints.
ClearBreakPoint(bp);
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
static void CallWithBreakPoints(v8::Local<v8::Context> context,
v8::Local<v8::Object> recv,
v8::Local<v8::Function> f,
int break_point_count, int call_count) {
break_point_hit_count = 0;
for (int i = 0; i < call_count; i++) {
f->Call(context, recv, 0, NULL).ToLocalChecked();
CHECK_EQ((i + 1) * break_point_count, break_point_hit_count);
}
}
// Test GC during break point processing.
TEST(GCDuringBreakPointProcessing) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::Context> context = env.context();
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointCollectGarbage);
v8::Local<v8::Function> foo;
// Test IC store break point with garbage collection.
foo = CompileFunction(&env, "function foo(){bar=0;}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(context, env->Global(), foo, 1, 10);
// Test IC load break point with garbage collection.
foo = CompileFunction(&env, "bar=1;function foo(){var x=bar;}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(context, env->Global(), foo, 1, 10);
// Test IC call break point with garbage collection.
foo = CompileFunction(&env, "function bar(){};function foo(){bar();}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(context, env->Global(), foo, 1, 10);
// Test return break point with garbage collection.
foo = CompileFunction(&env, "function foo(){}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(context, env->Global(), foo, 1, 25);
// Test debug break slot break point with garbage collection.
foo = CompileFunction(&env, "function foo(){var a;}", "foo");
SetBreakPoint(foo, 0);
CallWithBreakPoints(context, env->Global(), foo, 1, 25);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Call the function three times with different garbage collections in between
// and make sure that the break point survives.
static void CallAndGC(v8::Local<v8::Context> context,
v8::Local<v8::Object> recv, v8::Local<v8::Function> f) {
break_point_hit_count = 0;
for (int i = 0; i < 3; i++) {
// Call function.
f->Call(context, recv, 0, NULL).ToLocalChecked();
CHECK_EQ(1 + i * 3, break_point_hit_count);
// Scavenge and call function.
CcTest::CollectGarbage(v8::internal::NEW_SPACE);
f->Call(context, recv, 0, NULL).ToLocalChecked();
CHECK_EQ(2 + i * 3, break_point_hit_count);
// Mark sweep (and perhaps compact) and call function.
CcTest::CollectAllGarbage();
f->Call(context, recv, 0, NULL).ToLocalChecked();
CHECK_EQ(3 + i * 3, break_point_hit_count);
}
}
// Test that a break point can be set at a return store location.
TEST(BreakPointSurviveGC) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::Context> context = env.context();
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::Function> foo;
// Test IC store break point with garbage collection.
{
CompileFunction(&env, "function foo(){}", "foo");
foo = CompileFunction(&env, "function foo(){bar=0;}", "foo");
SetBreakPoint(foo, 0);
}
CallAndGC(context, env->Global(), foo);
// Test IC load break point with garbage collection.
{
CompileFunction(&env, "function foo(){}", "foo");
foo = CompileFunction(&env, "bar=1;function foo(){var x=bar;}", "foo");
SetBreakPoint(foo, 0);
}
CallAndGC(context, env->Global(), foo);
// Test IC call break point with garbage collection.
{
CompileFunction(&env, "function foo(){}", "foo");
foo = CompileFunction(&env,
"function bar(){};function foo(){bar();}",
"foo");
SetBreakPoint(foo, 0);
}
CallAndGC(context, env->Global(), foo);
// Test return break point with garbage collection.
{
CompileFunction(&env, "function foo(){}", "foo");
foo = CompileFunction(&env, "function foo(){}", "foo");
SetBreakPoint(foo, 0);
}
CallAndGC(context, env->Global(), foo);
// Test non IC break point with garbage collection.
{
CompileFunction(&env, "function foo(){}", "foo");
foo = CompileFunction(&env, "function foo(){var bar=0;}", "foo");
SetBreakPoint(foo, 0);
}
CallAndGC(context, env->Global(), foo);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that break points can be set using the global Debug object.
TEST(BreakPointThroughJavaScript) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::Context> context = env.context();
env.ExposeDebug();
SetDebugEventListener(isolate, DebugEventBreakPointHitCount);
CompileRunChecked(isolate, "function bar(){}");
CompileFunction(isolate, "function foo(){bar();bar();}", "foo");
// 012345678901234567890
// 1 2
// Break points are set at position 3 and 9
v8::Local<v8::String> source = v8_str(env->GetIsolate(), "foo()");
v8::Local<v8::Script> foo =
v8::Script::Compile(context, source).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Run with one breakpoint
int bp1 = SetBreakPointFromJS(env->GetIsolate(), "foo", 0, 3);
foo->Run(context).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
foo->Run(context).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
// Run with two breakpoints
int bp2 = SetBreakPointFromJS(env->GetIsolate(), "foo", 0, 9);
foo->Run(context).ToLocalChecked();
CHECK_EQ(4, break_point_hit_count);
foo->Run(context).ToLocalChecked();
CHECK_EQ(6, break_point_hit_count);
// Run with one breakpoint
ClearBreakPointFromJS(env->GetIsolate(), bp2);
foo->Run(context).ToLocalChecked();
CHECK_EQ(7, break_point_hit_count);
foo->Run(context).ToLocalChecked();
CHECK_EQ(8, break_point_hit_count);
// Run without breakpoints.
ClearBreakPointFromJS(env->GetIsolate(), bp1);
foo->Run(context).ToLocalChecked();
CHECK_EQ(8, break_point_hit_count);
SetDebugEventListener(isolate, nullptr);
CheckDebuggerUnloaded();
// Make sure that the break point numbers are consecutive.
CHECK_EQ(1, bp1);
CHECK_EQ(2, bp2);
}
// Test that break points on scripts identified by name can be set using the
// global Debug object.
TEST(ScriptBreakPointByNameThroughJavaScript) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::Context> context = env.context();
env.ExposeDebug();
SetDebugEventListener(isolate, DebugEventBreakPointHitCount);
v8::Local<v8::String> script = v8_str(isolate,
"function f() {\n"
" function h() {\n"
" a = 0; // line 2\n"
" }\n"
" b = 1; // line 4\n"
" return h();\n"
"}\n"
"\n"
"function g() {\n"
" function h() {\n"
" a = 0;\n"
" }\n"
" b = 2; // line 12\n"
" h();\n"
" b = 3; // line 14\n"
" f(); // line 15\n"
"}");
// Compile the script and get the two functions.
v8::ScriptOrigin origin = v8::ScriptOrigin(v8_str(isolate, "test"));
v8::Script::Compile(context, script, &origin)
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(
env->Global()->Get(context, v8_str(isolate, "f")).ToLocalChecked());
v8::Local<v8::Function> g = v8::Local<v8::Function>::Cast(
env->Global()->Get(context, v8_str(isolate, "g")).ToLocalChecked());
// Call f and g without break points.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 12.
int sbp1 = SetScriptBreakPointByNameFromJS(isolate, "test", 12, 0);
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
// Remove the break point again.
break_point_hit_count = 0;
ClearBreakPointFromJS(env->GetIsolate(), sbp1);
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 2.
int sbp2 = SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test", 2, 0);
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
// Call f and g with break point on line 2, 4, 12, 14 and 15.
int sbp3 = SetScriptBreakPointByNameFromJS(isolate, "test", 4, 0);
int sbp4 = SetScriptBreakPointByNameFromJS(isolate, "test", 12, 0);
int sbp5 = SetScriptBreakPointByNameFromJS(isolate, "test", 14, 0);
int sbp6 = SetScriptBreakPointByNameFromJS(isolate, "test", 15, 0);
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(7, break_point_hit_count);
// Remove all the break points again.
break_point_hit_count = 0;
ClearBreakPointFromJS(isolate, sbp2);
ClearBreakPointFromJS(isolate, sbp3);
ClearBreakPointFromJS(isolate, sbp4);
ClearBreakPointFromJS(isolate, sbp5);
ClearBreakPointFromJS(isolate, sbp6);
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
SetDebugEventListener(isolate, nullptr);
CheckDebuggerUnloaded();
// Make sure that the break point numbers are consecutive.
CHECK_EQ(1, sbp1);
CHECK_EQ(2, sbp2);
CHECK_EQ(3, sbp3);
CHECK_EQ(4, sbp4);
CHECK_EQ(5, sbp5);
CHECK_EQ(6, sbp6);
}
TEST(ScriptBreakPointByIdThroughJavaScript) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::Context> context = env.context();
env.ExposeDebug();
SetDebugEventListener(isolate, DebugEventBreakPointHitCount);
v8::Local<v8::String> source = v8_str(isolate,
"function f() {\n"
" function h() {\n"
" a = 0; // line 2\n"
" }\n"
" b = 1; // line 4\n"
" return h();\n"
"}\n"
"\n"
"function g() {\n"
" function h() {\n"
" a = 0;\n"
" }\n"
" b = 2; // line 12\n"
" h();\n"
" b = 3; // line 14\n"
" f(); // line 15\n"
"}");
// Compile the script and get the two functions.
v8::ScriptOrigin origin = v8::ScriptOrigin(v8_str(isolate, "test"));
v8::Local<v8::Script> script =
v8::Script::Compile(context, source, &origin).ToLocalChecked();
script->Run(context).ToLocalChecked();
v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(
env->Global()->Get(context, v8_str(isolate, "f")).ToLocalChecked());
v8::Local<v8::Function> g = v8::Local<v8::Function>::Cast(
env->Global()->Get(context, v8_str(isolate, "g")).ToLocalChecked());
// Get the script id knowing that internally it is a 32 integer.
int script_id = script->GetUnboundScript()->GetId();
// Call f and g without break points.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 12.
int sbp1 = SetScriptBreakPointByIdFromJS(env->GetIsolate(), script_id, 12, 0);
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
// Remove the break point again.
break_point_hit_count = 0;
ClearBreakPointFromJS(env->GetIsolate(), sbp1);
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Call f and g with break point on line 2.
int sbp2 = SetScriptBreakPointByIdFromJS(env->GetIsolate(), script_id, 2, 0);
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
// Call f and g with break point on line 2, 4, 12, 14 and 15.
int sbp3 = SetScriptBreakPointByIdFromJS(env->GetIsolate(), script_id, 4, 0);
int sbp4 = SetScriptBreakPointByIdFromJS(env->GetIsolate(), script_id, 12, 0);
int sbp5 = SetScriptBreakPointByIdFromJS(env->GetIsolate(), script_id, 14, 0);
int sbp6 = SetScriptBreakPointByIdFromJS(env->GetIsolate(), script_id, 15, 0);
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(7, break_point_hit_count);
// Remove all the break points again.
break_point_hit_count = 0;
ClearBreakPointFromJS(env->GetIsolate(), sbp2);
ClearBreakPointFromJS(env->GetIsolate(), sbp3);
ClearBreakPointFromJS(env->GetIsolate(), sbp4);
ClearBreakPointFromJS(env->GetIsolate(), sbp5);
ClearBreakPointFromJS(env->GetIsolate(), sbp6);
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
SetDebugEventListener(isolate, nullptr);
CheckDebuggerUnloaded();
// Make sure that the break point numbers are consecutive.
CHECK_EQ(1, sbp1);
CHECK_EQ(2, sbp2);
CHECK_EQ(3, sbp3);
CHECK_EQ(4, sbp4);
CHECK_EQ(5, sbp5);
CHECK_EQ(6, sbp6);
}
// Test conditional script break points.
TEST(EnableDisableScriptBreakPoint) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
v8::Local<v8::Context> context = env.context();
env.ExposeDebug();
SetDebugEventListener(isolate, DebugEventBreakPointHitCount);
v8::Local<v8::String> script = v8_str(isolate,
"function f() {\n"
" a = 0; // line 1\n"
"};");
// Compile the script and get function f.
v8::ScriptOrigin origin = v8::ScriptOrigin(v8_str(isolate, "test"));
v8::Script::Compile(context, script, &origin)
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(
env->Global()->Get(context, v8_str(isolate, "f")).ToLocalChecked());
// Set script break point on line 1 (in function f).
int sbp = SetScriptBreakPointByNameFromJS(isolate, "test", 1, 0);
// Call f while enabeling and disabling the script break point.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
DisableScriptBreakPointFromJS(isolate, sbp);
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
EnableScriptBreakPointFromJS(isolate, sbp);
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
DisableScriptBreakPointFromJS(isolate, sbp);
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
SetDebugEventListener(isolate, nullptr);
CheckDebuggerUnloaded();
}
// Test conditional script break points.
TEST(ConditionalScriptBreakPoint) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
env.ExposeDebug();
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::String> script = v8_str(env->GetIsolate(),
"count = 0;\n"
"function f() {\n"
" g(count++); // line 2\n"
"};\n"
"function g(x) {\n"
" var a=x; // line 5\n"
"};");
// Compile the script and get function f.
v8::Local<v8::Context> context = env.context();
v8::ScriptOrigin origin = v8::ScriptOrigin(v8_str(env->GetIsolate(), "test"));
v8::Script::Compile(context, script, &origin)
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "f"))
.ToLocalChecked());
// Set script break point on line 5 (in function g).
int sbp1 = SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test", 5, 0);
// Call f with different conditions on the script break point.
break_point_hit_count = 0;
ChangeScriptBreakPointConditionFromJS(env->GetIsolate(), sbp1, "false");
f->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
ChangeScriptBreakPointConditionFromJS(env->GetIsolate(), sbp1, "true");
break_point_hit_count = 0;
f->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
ChangeScriptBreakPointConditionFromJS(env->GetIsolate(), sbp1, "x % 2 == 0");
break_point_hit_count = 0;
for (int i = 0; i < 10; i++) {
f->Call(env.context(), env->Global(), 0, NULL).ToLocalChecked();
}
CHECK_EQ(5, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test when several scripts has the same script data
TEST(ScriptBreakPointMultiple) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
env.ExposeDebug();
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::Context> context = env.context();
v8::Local<v8::Function> f;
v8::Local<v8::String> script_f = v8_str(env->GetIsolate(),
"function f() {\n"
" a = 0; // line 1\n"
"}");
v8::Local<v8::Function> g;
v8::Local<v8::String> script_g = v8_str(env->GetIsolate(),
"function g() {\n"
" b = 0; // line 1\n"
"}");
v8::ScriptOrigin origin = v8::ScriptOrigin(v8_str(env->GetIsolate(), "test"));
// Compile the scripts with same script data and get the functions.
v8::Script::Compile(context, script_f, &origin)
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
f = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "f"))
.ToLocalChecked());
v8::Script::Compile(context, script_g, &origin)
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
g = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "g"))
.ToLocalChecked());
int sbp = SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test", 1, 0);
// Call f and g and check that the script break point is active.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
// Clear the script break point.
ClearBreakPointFromJS(env->GetIsolate(), sbp);
// Call f and g and check that the script break point is no longer active.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Set script break point with the scripts loaded.
sbp = SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test", 1, 0);
// Call f and g and check that the script break point is active.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test the script origin which has both name and line offset.
TEST(ScriptBreakPointLineOffset) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
env.ExposeDebug();
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::Context> context = env.context();
v8::Local<v8::Function> f;
v8::Local<v8::String> script =
v8_str(env->GetIsolate(),
"function f() {\n"
" a = 0; // line 8 as this script has line offset 7\n"
" b = 0; // line 9 as this script has line offset 7\n"
"}");
// Create script origin both name and line offset.
v8::ScriptOrigin origin(v8_str(env->GetIsolate(), "test.html"),
v8::Integer::New(env->GetIsolate(), 7));
// Compile the script and get the function.
v8::Script::Compile(context, script, &origin)
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
int sbp1 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 8, 0);
int sbp2 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 9, 0);
f = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "f"))
.ToLocalChecked());
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
// Clear the script break points.
ClearBreakPointFromJS(env->GetIsolate(), sbp1);
ClearBreakPointFromJS(env->GetIsolate(), sbp2);
// Call f and check that no script break points are active.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Set a script break point with the script loaded.
sbp1 = SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 9, 0);
// Call f and check that the script break point is active.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test script break points set on lines.
TEST(ScriptBreakPointLine) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
env.ExposeDebug();
// Create a function for checking the function when hitting a break point.
frame_function_name = CompileFunction(&env,
frame_function_name_source,
"frame_function_name");
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::Context> context = env.context();
v8::Local<v8::Function> f;
v8::Local<v8::Function> g;
v8::Local<v8::String> script =
v8_str(env->GetIsolate(),
"a = 0 // line 0\n"
"function f() {\n"
" a = 1; // line 2\n"
"}\n"
" a = 2; // line 4\n"
" /* xx */ function g() { // line 5\n"
" function h() { // line 6\n"
" a = 3; // line 7\n"
" }\n"
" h(); // line 9\n"
" a = 4; // line 10\n"
" }\n"
" a=5; // line 12");
// Compile the script and get the function.
break_point_hit_count = 0;
v8::ScriptOrigin origin(v8_str(env->GetIsolate(), "test.html"),
v8::Integer::New(env->GetIsolate(), 0));
v8::Local<v8::Script> compiled =
v8::Script::Compile(context, script, &origin).ToLocalChecked();
int sbp1 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 0, -1);
int sbp2 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 1, -1);
int sbp3 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 5, -1);
compiled->Run(context).ToLocalChecked();
f = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "f"))
.ToLocalChecked());
g = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "g"))
.ToLocalChecked());
// Check that a break point was hit when the script was run.
CHECK_EQ(1, break_point_hit_count);
CHECK_EQ(0, StrLength(last_function_hit));
// Call f and check that the script break point.
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
CHECK_EQ(0, strcmp("f", last_function_hit));
// Call g and check that the script break point.
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(3, break_point_hit_count);
CHECK_EQ(0, strcmp("g", last_function_hit));
// Clear the script break point on g and set one on h.
ClearBreakPointFromJS(env->GetIsolate(), sbp3);
int sbp4 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 6, -1);
// Call g and check that the script break point in h is hit.
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(4, break_point_hit_count);
CHECK_EQ(0, strcmp("h", last_function_hit));
// Clear break points in f and h. Set a new one in the script between
// functions f and g and test that there is no break points in f and g any
// more.
ClearBreakPointFromJS(env->GetIsolate(), sbp2);
ClearBreakPointFromJS(env->GetIsolate(), sbp4);
int sbp5 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 4, -1);
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
g->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Set a break point in the code after the last function decleration.
int sbp6 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 12, -1);
// Reloading the script should not hit any break points.
break_point_hit_count = 0;
v8::Script::Compile(context, script, &origin)
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
ClearBreakPointFromJS(env->GetIsolate(), sbp1);
ClearBreakPointFromJS(env->GetIsolate(), sbp5);
ClearBreakPointFromJS(env->GetIsolate(), sbp6);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test top level script break points set on lines.
TEST(ScriptBreakPointLineTopLevel) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
env.ExposeDebug();
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::Context> context = env.context();
v8::Local<v8::String> script =
v8_str(env->GetIsolate(),
"function f() {\n"
" a = 1; // line 1\n"
"}\n"
"a = 2; // line 3\n");
v8::Local<v8::Function> f;
{
v8::HandleScope scope(env->GetIsolate());
CompileRunWithOrigin(script, "test.html");
}
f = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "f"))
.ToLocalChecked());
CcTest::CollectAllGarbage();
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 3, -1);
// Call f and check that there was no break points.
break_point_hit_count = 0;
f->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
// Recompile and run script and check that break point was not reapplied.
break_point_hit_count = 0;
CompileRunWithOrigin(script, "test.html");
CHECK_EQ(0, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that it is possible to add and remove break points in a top level
// function which has no references but has not been collected yet.
TEST(ScriptBreakPointTopLevelCrash) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
env.ExposeDebug();
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
CompileRunWithOrigin(
"function f() {\n"
" return 0;\n"
"}\n",
"test.html");
int sbp1 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 1, -1);
break_point_hit_count = 0;
CompileRun("f();");
CHECK_EQ(1, break_point_hit_count);
int sbp2 =
SetScriptBreakPointByNameFromJS(env->GetIsolate(), "test.html", 3, -1);
ClearBreakPointFromJS(env->GetIsolate(), sbp1);
ClearBreakPointFromJS(env->GetIsolate(), sbp2);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that it is possible to remove the last break point for a function
// inside the break handling of that break point.
TEST(RemoveBreakPointInBreak) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::Context> context = env.context();
v8::Local<v8::Function> foo =
CompileFunction(&env, "function foo(){a=1;}", "foo");
// Register the debug event listener pasing the function
SetDebugEventListener(env->GetIsolate(), DebugEventRemoveBreakPoint, foo);
debug_event_remove_break_point = SetBreakPoint(foo, 0);
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(0, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that the debugger statement causes a break.
TEST(DebuggerStatement) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Local<v8::Context> context = env.context();
v8::Script::Compile(context,
v8_str(env->GetIsolate(), "function bar(){debugger}"))
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
v8::Script::Compile(
context, v8_str(env->GetIsolate(), "function foo(){debugger;debugger;}"))
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "foo"))
.ToLocalChecked());
v8::Local<v8::Function> bar = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "bar"))
.ToLocalChecked());
// Run function with debugger statement
bar->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
// Run function with two debugger statement
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(3, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test setting a breakpoint on the debugger statement.
TEST(DebuggerStatementBreakpoint) {
break_point_hit_count = 0;
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
v8::Local<v8::Context> context = env.context();
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
v8::Script::Compile(context,
v8_str(env->GetIsolate(), "function foo(){debugger;}"))
.ToLocalChecked()
->Run(context)
.ToLocalChecked();
v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(
env->Global()
->Get(context, v8_str(env->GetIsolate(), "foo"))
.ToLocalChecked());
// The debugger statement triggers breakpoint hit
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
int bp = SetBreakPoint(foo, 0);
// Set breakpoint does not duplicate hits
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(2, break_point_hit_count);
ClearBreakPoint(bp);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test that the evaluation of expressions when a break point is hit generates
// the correct results.
TEST(DebugEvaluate) {
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
env.ExposeDebug();
// Create a function for checking the evaluation when hitting a break point.
evaluate_check_function = CompileFunction(&env,
evaluate_check_source,
"evaluate_check");
// Register the debug event listener
SetDebugEventListener(isolate, DebugEventEvaluate);
// Different expected vaules of x and a when in a break point (u = undefined,
// d = Hello, world!).
struct EvaluateCheck checks_uu[] = {{"x", v8::Undefined(isolate)},
{"a", v8::Undefined(isolate)},
{NULL, v8::Local<v8::Value>()}};
struct EvaluateCheck checks_hu[] = {
{"x", v8_str(env->GetIsolate(), "Hello, world!")},
{"a", v8::Undefined(isolate)},
{NULL, v8::Local<v8::Value>()}};
struct EvaluateCheck checks_hh[] = {
{"x", v8_str(env->GetIsolate(), "Hello, world!")},
{"a", v8_str(env->GetIsolate(), "Hello, world!")},
{NULL, v8::Local<v8::Value>()}};
// Simple test function. The "y=0" is in the function foo to provide a break
// location. For "y=0" the "y" is at position 15 in the foo function
// therefore setting breakpoint at position 15 will break at "y=0" and
// setting it higher will break after.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function foo(x) {"
" var a;"
" y=0;" // To ensure break location 1.
" a=x;"
" y=0;" // To ensure break location 2.
"}",
"foo");
const int foo_break_position_1 = 15;
const int foo_break_position_2 = 29;
v8::Local<v8::Context> context = env.context();
// Arguments with one parameter "Hello, world!"
v8::Local<v8::Value> argv_foo[1] = {
v8_str(env->GetIsolate(), "Hello, world!")};
// Call foo with breakpoint set before a=x and undefined as parameter.
int bp = SetBreakPoint(foo, foo_break_position_1);
checks = checks_uu;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// Call foo with breakpoint set before a=x and parameter "Hello, world!".
checks = checks_hu;
foo->Call(context, env->Global(), 1, argv_foo).ToLocalChecked();
// Call foo with breakpoint set after a=x and parameter "Hello, world!".
ClearBreakPoint(bp);
SetBreakPoint(foo, foo_break_position_2);
checks = checks_hh;
foo->Call(context, env->Global(), 1, argv_foo).ToLocalChecked();
// Test that overriding Object.prototype will not interfere into evaluation
// on call frame.
v8::Local<v8::Function> zoo =
CompileFunction(&env,
"x = undefined;"
"function zoo(t) {"
" var a=x;"
" Object.prototype.x = 42;"
" x=t;"
" y=0;" // To ensure break location.
" delete Object.prototype.x;"
" x=a;"
"}",
"zoo");
const int zoo_break_position = 50;
// Arguments with one parameter "Hello, world!"
v8::Local<v8::Value> argv_zoo[1] = {
v8_str(env->GetIsolate(), "Hello, world!")};
// Call zoo with breakpoint set at y=0.
DebugEventCounterClear();
bp = SetBreakPoint(zoo, zoo_break_position);
checks = checks_hu;
zoo->Call(context, env->Global(), 1, argv_zoo).ToLocalChecked();
CHECK_EQ(1, break_point_hit_count);
ClearBreakPoint(bp);
// Test function with an inner function. The "y=0" is in function barbar
// to provide a break location. For "y=0" the "y" is at position 8 in the
// barbar function therefore setting breakpoint at position 8 will break at
// "y=0" and setting it higher will break after.
v8::Local<v8::Function> bar = CompileFunction(&env,
"y = 0;"
"x = 'Goodbye, world!';"
"function bar(x, b) {"
" var a;"
" function barbar() {"
" y=0; /* To ensure break location.*/"
" a=x;"
" };"
" debug.Debug.clearAllBreakPoints();"
" barbar();"
" y=0;a=x;"
"}",
"bar");
const int barbar_break_position = 8;
// Call bar setting breakpoint before a=x in barbar and undefined as
// parameter.
checks = checks_uu;
v8::Local<v8::Value> argv_bar_1[2] = {
v8::Undefined(isolate), v8::Number::New(isolate, barbar_break_position)};
bar->Call(context, env->Global(), 2, argv_bar_1).ToLocalChecked();
// Call bar setting breakpoint before a=x in barbar and parameter
// "Hello, world!".
checks = checks_hu;
v8::Local<v8::Value> argv_bar_2[2] = {
v8_str(env->GetIsolate(), "Hello, world!"),
v8::Number::New(env->GetIsolate(), barbar_break_position)};
bar->Call(context, env->Global(), 2, argv_bar_2).ToLocalChecked();
// Call bar setting breakpoint after a=x in barbar and parameter
// "Hello, world!".
checks = checks_hh;
v8::Local<v8::Value> argv_bar_3[2] = {
v8_str(env->GetIsolate(), "Hello, world!"),
v8::Number::New(env->GetIsolate(), barbar_break_position + 1)};
bar->Call(context, env->Global(), 2, argv_bar_3).ToLocalChecked();
SetDebugEventListener(isolate, nullptr);
CheckDebuggerUnloaded();
}
int debugEventCount = 0;
static void CheckDebugEvent(const v8::Debug::EventDetails& eventDetails) {
if (eventDetails.GetEvent() == v8::Break) ++debugEventCount;
}
// Test that the conditional breakpoints work event if code generation from
// strings is prohibited in the debugee context.
TEST(ConditionalBreakpointWithCodeGenerationDisallowed) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
env.ExposeDebug();
SetDebugEventListener(env->GetIsolate(), CheckDebugEvent);
v8::Local<v8::Context> context = env.context();
v8::Local<v8::Function> foo = CompileFunction(&env,
"function foo(x) {\n"
" var s = 'String value2';\n"
" return s + x;\n"
"}",
"foo");
// Set conditional breakpoint with condition 'true'.
CompileRun("debug.Debug.setBreakPoint(foo, 2, 0, 'true')");
debugEventCount = 0;
env->AllowCodeGenerationFromStrings(false);
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, debugEventCount);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
bool checkedDebugEvals = true;
v8::Local<v8::Function> checkGlobalEvalFunction;
v8::Local<v8::Function> checkFrameEvalFunction;
static void CheckDebugEval(const v8::Debug::EventDetails& eventDetails) {
if (eventDetails.GetEvent() == v8::Break) {
++debugEventCount;
v8::HandleScope handleScope(CcTest::isolate());
v8::Local<v8::Value> args[] = {eventDetails.GetExecutionState()};
CHECK(
checkGlobalEvalFunction->Call(eventDetails.GetEventContext(),
eventDetails.GetEventContext()->Global(),
1, args)
.ToLocalChecked()
->IsTrue());
CHECK(checkFrameEvalFunction->Call(eventDetails.GetEventContext(),
eventDetails.GetEventContext()->Global(),
1, args)
.ToLocalChecked()
->IsTrue());
}
}
// Test that the evaluation of expressions when a break point is hit generates
// the correct results in case code generation from strings is disallowed in the
// debugee context.
TEST(DebugEvaluateWithCodeGenerationDisallowed) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
env.ExposeDebug();
SetDebugEventListener(env->GetIsolate(), CheckDebugEval);
v8::Local<v8::Context> context = env.context();
v8::Local<v8::Function> foo = CompileFunction(&env,
"var global = 'Global';\n"
"function foo(x) {\n"
" var local = 'Local';\n"
" debugger;\n"
" return local + x;\n"
"}",
"foo");
checkGlobalEvalFunction = CompileFunction(&env,
"function checkGlobalEval(exec_state) {\n"
" return exec_state.evaluateGlobal('global').value() === 'Global';\n"
"}",
"checkGlobalEval");
checkFrameEvalFunction = CompileFunction(&env,
"function checkFrameEval(exec_state) {\n"
" return exec_state.frame(0).evaluate('local').value() === 'Local';\n"
"}",
"checkFrameEval");
debugEventCount = 0;
env->AllowCodeGenerationFromStrings(false);
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(1, debugEventCount);
checkGlobalEvalFunction.Clear();
checkFrameEvalFunction.Clear();
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Simple test of the stepping mechanism using only store ICs.
TEST(DebugStepLinear) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function foo(){a=1;b=1;c=1;}",
"foo");
// Run foo to allow it to get optimized.
CompileRun("a=0; b=0; c=0; foo();");
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
SetBreakPoint(foo, 3);
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Context> context = env.context();
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// With stepping all break locations are hit.
CHECK_EQ(4, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
// Register a debug event listener which just counts.
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
SetBreakPoint(foo, 3);
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// Without stepping only active break points are hit.
CHECK_EQ(1, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test of the stepping mechanism for keyed load in a loop.
TEST(DebugStepKeyedLoadLoop) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
// Create a function for testing stepping of keyed load. The statement 'y=1'
// is there to have more than one breakable statement in the loop, TODO(315).
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo(a) {\n"
" var x;\n"
" var len = a.length;\n"
" for (var i = 0; i < len; i++) {\n"
" y = 1;\n"
" x = a[i];\n"
" }\n"
"}\n"
"y=0\n",
"foo");
v8::Local<v8::Context> context = env.context();
// Create array [0,1,2,3,4,5,6,7,8,9]
v8::Local<v8::Array> a = v8::Array::New(env->GetIsolate(), 10);
for (int i = 0; i < 10; i++) {
CHECK(a->Set(context, v8::Number::New(env->GetIsolate(), i),
v8::Number::New(env->GetIsolate(), i))
.FromJust());
}
// Call function without any break points to ensure inlining is in place.
const int kArgc = 1;
v8::Local<v8::Value> args[kArgc] = {a};
foo->Call(context, env->Global(), kArgc, args).ToLocalChecked();
// Set up break point and step through the function.
SetBreakPoint(foo, 3);
step_action = StepNext;
break_point_hit_count = 0;
foo->Call(context, env->Global(), kArgc, args).ToLocalChecked();
// With stepping all break locations are hit.
CHECK_EQ(44, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test of the stepping mechanism for keyed store in a loop.
TEST(DebugStepKeyedStoreLoop) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
// Create a function for testing stepping of keyed store. The statement 'y=1'
// is there to have more than one breakable statement in the loop, TODO(315).
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo(a) {\n"
" var len = a.length;\n"
" for (var i = 0; i < len; i++) {\n"
" y = 1;\n"
" a[i] = 42;\n"
" }\n"
"}\n"
"y=0\n",
"foo");
v8::Local<v8::Context> context = env.context();
// Create array [0,1,2,3,4,5,6,7,8,9]
v8::Local<v8::Array> a = v8::Array::New(env->GetIsolate(), 10);
for (int i = 0; i < 10; i++) {
CHECK(a->Set(context, v8::Number::New(env->GetIsolate(), i),
v8::Number::New(env->GetIsolate(), i))
.FromJust());
}
// Call function without any break points to ensure inlining is in place.
const int kArgc = 1;
v8::Local<v8::Value> args[kArgc] = {a};
foo->Call(context, env->Global(), kArgc, args).ToLocalChecked();
// Set up break point and step through the function.
SetBreakPoint(foo, 3);
step_action = StepNext;
break_point_hit_count = 0;
foo->Call(context, env->Global(), kArgc, args).ToLocalChecked();
// With stepping all break locations are hit.
CHECK_EQ(44, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test of the stepping mechanism for named load in a loop.
TEST(DebugStepNamedLoadLoop) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
v8::Local<v8::Context> context = env.context();
// Create a function for testing stepping of named load.
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo() {\n"
" var a = [];\n"
" var s = \"\";\n"
" for (var i = 0; i < 10; i++) {\n"
" var v = new V(i, i + 1);\n"
" v.y;\n"
" a.length;\n" // Special case: array length.
" s.length;\n" // Special case: string length.
" }\n"
"}\n"
"function V(x, y) {\n"
" this.x = x;\n"
" this.y = y;\n"
"}\n",
"foo");
// Call function without any break points to ensure inlining is in place.
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// Set up break point and step through the function.
SetBreakPoint(foo, 4);
step_action = StepNext;
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// With stepping all break locations are hit.
CHECK_EQ(65, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
static void DoDebugStepNamedStoreLoop(int expected) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
// Create a function for testing stepping of named store.
v8::Local<v8::Context> context = env.context();
v8::Local<v8::Function> foo = CompileFunction(
&env,
"function foo() {\n"
" var a = {a:1};\n"
" for (var i = 0; i < 10; i++) {\n"
" a.a = 2\n"
" }\n"
"}\n",
"foo");
// Call function without any break points to ensure inlining is in place.
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// Set up break point and step through the function.
SetBreakPoint(foo, 3);
step_action = StepNext;
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// With stepping all expected break locations are hit.
CHECK_EQ(expected, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
// Test of the stepping mechanism for named load in a loop.
TEST(DebugStepNamedStoreLoop) { DoDebugStepNamedStoreLoop(34); }
// Test the stepping mechanism with different ICs.
TEST(DebugStepLinearMixedICs) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
v8::Local<v8::Context> context = env.context();
// Create a function for testing stepping.
v8::Local<v8::Function> foo = CompileFunction(&env,
"function bar() {};"
"function foo() {"
" var x;"
" var index='name';"
" var y = {};"
" a=1;b=2;x=a;y[index]=3;x=y[index];bar();}", "foo");
// Run functions to allow them to get optimized.
CompileRun("a=0; b=0; bar(); foo();");
SetBreakPoint(foo, 0);
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// With stepping all break locations are hit.
CHECK_EQ(10, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
// Register a debug event listener which just counts.
SetDebugEventListener(env->GetIsolate(), DebugEventBreakPointHitCount);
SetBreakPoint(foo, 0);
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
// Without stepping only active break points are hit.
CHECK_EQ(1, break_point_hit_count);
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
TEST(DebugStepDeclarations) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
v8::Local<v8::Context> context = env.context();
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function foo() { "
" var a;"
" var b = 1;"
" var c = foo;"
" var d = Math.floor;"
" var e = b + d(1.2);"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// Stepping through the declarations.
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(5, break_point_hit_count);
// Get rid of the debug event listener.
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
TEST(DebugStepLocals) {
DebugLocalContext env;
v8::HandleScope scope(env->GetIsolate());
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
v8::Local<v8::Context> context = env.context();
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const char* src = "function foo() { "
" var a,b;"
" a = 1;"
" b = a + 2;"
" b = 1 + 2 + 3;"
" a = Math.floor(b);"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// Stepping through the declarations.
step_action = StepIn;
break_point_hit_count = 0;
foo->Call(context, env->Global(), 0, NULL).ToLocalChecked();
CHECK_EQ(5, break_point_hit_count);
// Get rid of the debug event listener.
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
TEST(DebugStepIf) {
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
// Register a debug event listener which steps and counts.
SetDebugEventListener(env->GetIsolate(), DebugEventStep);
v8::Local<v8::Context> context = env.context();
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" a = 1;"
" if (x) {"
" b = 1;"
" } else {"
" c = 1;"
" d = 1;"
" }"
"}"
"a=0; b=0; c=0; d=0; foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// Stepping through the true part.
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Value> argv_true[argc] = {v8::True(isolate)};
foo->Call(context, env->Global(), argc, argv_true).ToLocalChecked();
CHECK_EQ(4, break_point_hit_count);
// Stepping through the false part.
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Value> argv_false[argc] = {v8::False(isolate)};
foo->Call(context, env->Global(), argc, argv_false).ToLocalChecked();
CHECK_EQ(5, break_point_hit_count);
// Get rid of the debug event listener.
SetDebugEventListener(env->GetIsolate(), nullptr);
CheckDebuggerUnloaded();
}
TEST(DebugStepSwitch) {
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
// Register a debug event listener which steps and counts.
SetDebugEventListener(isolate, DebugEventStep);
v8::Local<v8::Context> context = env.context();
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" a = 1;"
" switch (x) {"
" case 1:"
" b = 1;"
" case 2:"
" c = 1;"
" break;"
" case 3:"
" d = 1;"
" e = 1;"
" f = 1;"
" break;"
" }"
"}"
"a=0; b=0; c=0; d=0; e=0; f=0; foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 0);
// One case with fall-through.
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Value> argv_1[argc] = {v8::Number::New(isolate, 1)};
foo->Call(context, env->Global(), argc, argv_1).ToLocalChecked();
CHECK_EQ(6, break_point_hit_count);
// Another case.
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Value> argv_2[argc] = {v8::Number::New(isolate, 2)};
foo->Call(context, env->Global(), argc, argv_2).ToLocalChecked();
CHECK_EQ(5, break_point_hit_count);
// Last case.
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Value> argv_3[argc] = {v8::Number::New(isolate, 3)};
foo->Call(context, env->Global(), argc, argv_3).ToLocalChecked();
CHECK_EQ(7, break_point_hit_count);
// Get rid of the debug event listener.
SetDebugEventListener(isolate, nullptr);
CheckDebuggerUnloaded();
}
TEST(DebugStepWhile) {
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
// Register a debug event listener which steps and counts.
SetDebugEventListener(isolate, DebugEventStep);
v8::Local<v8::Context> context = env.context();
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" var a = 0;"
" while (a < x) {"
" a++;"
" }"
"}"
"foo()";
v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo");
SetBreakPoint(foo, 8); // "var a = 0;"
// Looping 0 times. We still should break at the while-condition once.
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Value> argv_0[argc] = {v8::Number::New(isolate, 0)};
foo->Call(context, env->Global(), argc, argv_0).ToLocalChecked();
CHECK_EQ(3, break_point_hit_count);
// Looping 10 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Value> argv_10[argc] = {v8::Number::New(isolate, 10)};
foo->Call(context, env->Global(), argc, argv_10).ToLocalChecked();
CHECK_EQ(23, break_point_hit_count);
// Looping 100 times.
step_action = StepIn;
break_point_hit_count = 0;
v8::Local<v8::Value> argv_100[argc] = {v8::Number::New(isolate, 100)};
foo->Call(context, env->Global(), argc, argv_100).ToLocalChecked();
CHECK_EQ(203, break_point_hit_count);
// Get rid of the debug event listener.
SetDebugEventListener(isolate, nullptr);
CheckDebuggerUnloaded();
}
TEST(DebugStepDoWhile) {
DebugLocalContext env;
v8::Isolate* isolate = env->GetIsolate();
v8::HandleScope scope(isolate);
// Register a debug event listener which steps and counts.
SetDebugEventListener(isolate, DebugEventStep);
v8::Local<v8::Context> context = env.context();
// Create a function for testing stepping. Run it to allow it to get
// optimized.
const int argc = 1;
const char* src = "function foo(x) { "
" var a = 0;"
" do {"
" a++;"
" } while (a < x)"
"}"
"foo()";