stack_frame_test.cc File Reference

#include "vm/stack_frame.h"
#include "include/dart_api.h"
#include "platform/assert.h"
#include "vm/class_finalizer.h"
#include "vm/compiler/jit/compiler.h"
#include "vm/dart_api_impl.h"
#include "vm/dart_entry.h"
#include "vm/heap/verifier.h"
#include "vm/resolver.h"
#include "vm/unit_test.h"
#include "vm/zone.h"

Go to the source code of this file.

Classes
struct	dart::NativeEntries

Namespaces
namespace	dart

Macros
#define	FUNCTION_NAME(name)   StackFrame_##name
#define	REGISTER_FUNCTION(name, count)   {"" #name, FUNCTION_NAME(name), count},
#define	STACKFRAME_NATIVE_LIST(V)

Functions
	dart::ISOLATE_UNIT_TEST_CASE (EmptyStackFrameIteration)
	dart::ISOLATE_UNIT_TEST_CASE (EmptyDartStackFrameIteration)
void FUNCTION_NAME()	dart::StackFrame_equals (Dart_NativeArguments args)
void FUNCTION_NAME()	dart::StackFrame_frameCount (Dart_NativeArguments args)
void FUNCTION_NAME()	dart::StackFrame_dartFrameCount (Dart_NativeArguments args)
void FUNCTION_NAME()	dart::StackFrame_validateFrame (Dart_NativeArguments args)
static Dart_NativeFunction	dart::native_lookup (Dart_Handle name, int argument_count, bool *auto_setup_scope)
	dart::TEST_CASE (ValidateStackFrameIteration)
	dart::TEST_CASE (ValidateNoSuchMethodStackFrameIteration)

Variables
static struct dart::NativeEntries	dart::BuiltinEntries [] = {STACKFRAME_NATIVE_LIST(REGISTER_FUNCTION)}

Macro Definition Documentation

FUNCTION_NAME

#define FUNCTION_NAME

(

name

)

StackFrame_##name

Definition at line 37 of file stack_frame_test.cc.

REGISTER_FUNCTION

#define REGISTER_FUNCTION	(		name,
			count
	)		{"" #name, FUNCTION_NAME(name), count},

Definition at line 38 of file stack_frame_test.cc.

STACKFRAME_NATIVE_LIST

#define STACKFRAME_NATIVE_LIST

(

V

)

Value:

  V(StackFrame_equals, 2)                                                      \
  V(StackFrame_frameCount, 0)                                                  \
  V(StackFrame_dartFrameCount, 0)                                              \
  V(StackFrame_validateFrame, 2)

Definition at line 127 of file stack_frame_test.cc.

                            {
  const char* name_;
  Dart_NativeFunction function_;
  int argument_count_;
} BuiltinEntries[] = {STACKFRAME_NATIVE_LIST(REGISTER_FUNCTION)};
 
static Dart_NativeFunction native_lookup(Dart_Handle name,
                                         int argument_count,
                                         bool* auto_setup_scope) {
  ASSERT(auto_setup_scope != nullptr);
  *auto_setup_scope = false;
  TransitionNativeToVM transition(Thread::Current());
  const Object& obj = Object::Handle(Api::UnwrapHandle(name));
  ASSERT(obj.IsString());
  const char* function_name = obj.ToCString();
  ASSERT(function_name != nullptr);
  int num_entries = sizeof(BuiltinEntries) / sizeof(struct NativeEntries);
  for (int i = 0; i < num_entries; i++) {
    struct NativeEntries* entry = &(BuiltinEntries[i]);
    if ((strcmp(function_name, entry->name_) == 0) &&
        (entry->argument_count_ == argument_count)) {
      return reinterpret_cast<Dart_NativeFunction>(entry->function_);
    }
  }
  return nullptr;
}
 
// Unit test case to verify stack frame iteration.
TEST_CASE(ValidateStackFrameIteration) {
  const char* nullable_tag = TestCase::NullableTag();
  // clang-format off
  auto kScriptChars = Utils::CStringUniquePtr(
      OS::SCreate(
          nullptr,
          "class StackFrame {"
          "  @pragma('vm:external-name', 'StackFrame_equals')\n"
          "  external static equals(var obj1, var obj2);\n"
          "  @pragma('vm:external-name', 'StackFrame_frameCount')\n"
          "  external static int frameCount();\n"
          "  @pragma('vm:external-name', 'StackFrame_dartFrameCount')\n"
          "  external static int dartFrameCount();\n"
          "  @pragma('vm:external-name', 'StackFrame_validateFrame')\n"
          "  external static validateFrame(int index, String name);"
          "} "
          "class First {"
          "  First() { }"
          "  int%s method1(int%s param) {"
          "    if (param == 1) {"
          "      param = method2(200);"
          "    } else {"
          "      param = method2(100);"
          "    }"
          "  }"
          "  int%s method2(int param) {"
          "    if (param == 200) {"
          "      First.staticmethod(this, param);"
          "    } else {"
          "      First.staticmethod(this, 10);"
          "    }"
          "  }"
          "  static int%s staticmethod(First obj, int param) {"
          "    if (param == 10) {"
          "      obj.method3(10);"
          "    } else {"
          "      obj.method3(200);"
          "    }"
          "  }"
          "  method3(int param) {"
          "    StackFrame.equals(9, StackFrame.frameCount());"
          "    StackFrame.equals(7, StackFrame.dartFrameCount());"
          "    StackFrame.validateFrame(0, \"StackFrame_validateFrame\");"
          "    StackFrame.validateFrame(1, \"First_method3\");"
          "    StackFrame.validateFrame(2, \"First_staticmethod\");"
          "    StackFrame.validateFrame(3, \"First_method2\");"
          "    StackFrame.validateFrame(4, \"First_method1\");"
          "    StackFrame.validateFrame(5, \"Second_method1\");"
          "    StackFrame.validateFrame(6, \"StackFrameTest_testMain\");"
          "  }"
          "}"
          "class Second {"
          "  Second() { }"
          "  int%s method1(int%s param) {"
          "    if (param == 1) {"
          "      param = method2(200);"
          "    } else {"
          "      First obj = new First();"
          "      param = obj.method1(1);"
          "      param = obj.method1(2);"
          "    }"
          "  }"
          "  int%s method2(int param) {"
          "    Second.staticmethod(this, param);"
          "  }"
          "  static int%s staticmethod(Second obj, int param) {"
          "    obj.method3(10);"
          "  }"
          "  method3(int param) {"
          "    StackFrame.equals(8, StackFrame.frameCount());"
          "    StackFrame.equals(6, StackFrame.dartFrameCount());"
          "    StackFrame.validateFrame(0, \"StackFrame_validateFrame\");"
          "    StackFrame.validateFrame(1, \"Second_method3\");"
          "    StackFrame.validateFrame(2, \"Second_staticmethod\");"
          "    StackFrame.validateFrame(3, \"Second_method2\");"
          "    StackFrame.validateFrame(4, \"Second_method1\");"
          "    StackFrame.validateFrame(5, \"StackFrameTest_testMain\");"
          "  }"
          "}"
          "class StackFrameTest {"
          "  static testMain() {"
          "    Second obj = new Second();"
          "    obj.method1(1);"
          "    obj.method1(2);"
          "  }"
          "}",
          nullable_tag, nullable_tag, nullable_tag, nullable_tag, nullable_tag,
          nullable_tag, nullable_tag, nullable_tag),
      std::free);
  // clang-format on
  Dart_Handle lib = TestCase::LoadTestScript(
      kScriptChars.get(),
      reinterpret_cast<Dart_NativeEntryResolver>(native_lookup));
  Dart_Handle cls = Dart_GetClass(lib, NewString("StackFrameTest"));
  EXPECT_VALID(Dart_Invoke(cls, NewString("testMain"), 0, nullptr));
}
 
// Unit test case to verify stack frame iteration.
TEST_CASE(ValidateNoSuchMethodStackFrameIteration) {
  const char* kScriptChars;
  // The true stack depends on which strategy we are using for noSuchMethod. The
  // stacktrace as seen by Dart is the same either way because dispatcher
  // methods are marked invisible.
  if (FLAG_lazy_dispatchers) {
    kScriptChars =
        "class StackFrame {"
        "  @pragma('vm:external-name', 'StackFrame_equals')\n"
        "  external static equals(var obj1, var obj2);\n"
        "  @pragma('vm:external-name', 'StackFrame_frameCount')\n"
        "  external static int frameCount();\n"
        "  @pragma('vm:external-name', 'StackFrame_dartFrameCount')\n"
        "  external static int dartFrameCount();\n"
        "  @pragma('vm:external-name', 'StackFrame_validateFrame')\n"
        "  external static validateFrame(int index, String name);"
        "} "
        "class StackFrame2Test {"
        "  StackFrame2Test() {}"
        "  noSuchMethod(Invocation im) {"
        "    /* We should have 6 general frames and 4 dart frames as follows:"
        "     * exit frame"
        "     * dart frame corresponding to StackFrame.frameCount"
        "     * dart frame corresponding to StackFrame2Test.noSuchMethod"
        "     * frame for instance function invocation stub calling "
        "noSuchMethod"
        "     * dart frame corresponding to StackFrame2Test.testMain"
        "     * entry frame"
        "     */"
        "    StackFrame.equals(6, StackFrame.frameCount());"
        "    StackFrame.equals(4, StackFrame.dartFrameCount());"
        "    StackFrame.validateFrame(0, \"StackFrame_validateFrame\");"
        "    StackFrame.validateFrame(1, \"StackFrame2Test_noSuchMethod\");"
        "    StackFrame.validateFrame(2, \"StackFrame2Test_foo\");"
        "    StackFrame.validateFrame(3, \"StackFrame2Test_testMain\");"
        "    return 5;"
        "  }"
        "  static testMain() {"
        "    /* Declare |obj| dynamic so that noSuchMethod can be"
        "     * called in strong mode. */"
        "    dynamic obj = new StackFrame2Test();"
        "    StackFrame.equals(5, obj.foo(101, 202));"
        "  }"
        "}";
  } else {
    kScriptChars =
        "class StackFrame {"
        "  @pragma('vm:external-name', 'StackFrame_equals')\n"
        "  external static equals(var obj1, var obj2);\n"
        "  @pragma('vm:external-name', 'StackFrame_frameCount')\n"
        "  external static int frameCount();\n"
        "  @pragma('vm:external-name', 'StackFrame_dartFrameCount')\n"
        "  external static int dartFrameCount();\n"
        "  @pragma('vm:external-name', 'StackFrame_validateFrame')\n"
        "  external static validateFrame(int index, String name);"
        "} "
        "class StackFrame2Test {"
        "  StackFrame2Test() {}"
        "  noSuchMethod(Invocation im) {"
        "    /* We should have 8 general frames and 3 dart frames as follows:"
        "     * exit frame"
        "     * dart frame corresponding to StackFrame.frameCount"
        "     * dart frame corresponding to StackFrame2Test.noSuchMethod"
        "     * entry frame"
        "     * exit frame (call to runtime NoSuchMethodFromCallStub)"
        "     * IC stub"
        "     * dart frame corresponding to StackFrame2Test.testMain"
        "     * entry frame"
        "     */"
        "    StackFrame.equals(8, StackFrame.frameCount());"
        "    StackFrame.equals(3, StackFrame.dartFrameCount());"
        "    StackFrame.validateFrame(0, \"StackFrame_validateFrame\");"
        "    StackFrame.validateFrame(1, \"StackFrame2Test_noSuchMethod\");"
        "    StackFrame.validateFrame(2, \"StackFrame2Test_testMain\");"
        "    return 5;"
        "  }"
        "  static testMain() {"
        "    /* Declare |obj| dynamic so that noSuchMethod can be"
        "     * called in strong mode. */"
        "    dynamic obj = new StackFrame2Test();"
        "    StackFrame.equals(5, obj.foo(101, 202));"
        "  }"
        "}";
  }
  Dart_Handle lib = TestCase::LoadTestScript(
      kScriptChars, reinterpret_cast<Dart_NativeEntryResolver>(native_lookup));
  Dart_Handle cls = Dart_GetClass(lib, NewString("StackFrame2Test"));
  EXPECT_VALID(Dart_Invoke(cls, NewString("testMain"), 0, nullptr));
}
 
}  // namespace dart