v8/test/cctest/test-compare-nil-ic-stub.cc

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#include <stdlib.h>

#include "v8.h"
#include "cctest.h"
#include "code-stubs.h"


using namespace v8::internal;

typedef CompareNilICStub::State State;

TEST(StateConstructors) {
  State state;
  state.Add(CompareNilICStub::MONOMORPHIC_MAP);
  State state2(state);
  CHECK_EQ(state.ToIntegral(), state2.ToIntegral());
}

TEST(ExternalICStateParsing) {
  State state;
  state.Add(CompareNilICStub::UNDEFINED);
  CompareNilICStub stub(kUndefinedValue, state);
  CompareNilICStub stub2(stub.GetExtraICState());
  CHECK_EQ(stub.GetNilValue(), stub2.GetNilValue());
  CHECK_EQ(stub.GetState().ToIntegral(), stub2.GetState().ToIntegral());
}

TEST(SettingState) {
  State state;
  CHECK(state.IsEmpty());
  state.Add(CompareNilICStub::NULL_TYPE);
  CHECK(!state.IsEmpty());
  CHECK(state.Contains(CompareNilICStub::NULL_TYPE));
  CHECK(!state.Contains(CompareNilICStub::UNDEFINED));
  CHECK(!state.Contains(CompareNilICStub::UNDETECTABLE));
  state.Add(CompareNilICStub::UNDEFINED);
  CHECK(state.Contains(CompareNilICStub::UNDEFINED));
  CHECK(state.Contains(CompareNilICStub::NULL_TYPE));
  CHECK(!state.Contains(CompareNilICStub::UNDETECTABLE));
}

TEST(ClearState) {
  State state;
  state.Add(CompareNilICStub::NULL_TYPE);
  state.RemoveAll();
  CHECK(state.IsEmpty());
}

TEST(Generic) {
  State state;
  CHECK(State::Generic() != state);
  state.Add(CompareNilICStub::UNDEFINED);
  CHECK(state != State::Generic());
  state.Add(CompareNilICStub::NULL_TYPE);
  CHECK(state != State::Generic());
  state.Add(CompareNilICStub::UNDETECTABLE);
  CHECK(state != State::Generic());
  state.Add(CompareNilICStub::GENERIC);
  CHECK(state == State::Generic());
}