v8/test/cctest/test-representation.cc

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#include "test/cctest/cctest.h"

#include "src/objects/property-details.h"

namespace v8 {
namespace internal {

void TestPairPositive(Representation more_general,
              Representation less_general) {
  CHECK(more_general.is_more_general_than(less_general));
}


void TestPairNegative(Representation more_general,
              Representation less_general) {
  CHECK(!more_general.is_more_general_than(less_general));
}


TEST(RepresentationMoreGeneralThan) {
  TestPairNegative(Representation::None(), Representation::None());
  TestPairPositive(Representation::Smi(), Representation::None());
  TestPairPositive(Representation::HeapObject(), Representation::None());
  TestPairPositive(Representation::Double(), Representation::None());
  TestPairPositive(Representation::Tagged(), Representation::None());

  TestPairNegative(Representation::None(), Representation::Smi());
  TestPairNegative(Representation::Smi(), Representation::Smi());
  TestPairNegative(Representation::HeapObject(), Representation::Smi());
  TestPairPositive(Representation::Double(), Representation::Smi());
  TestPairPositive(Representation::Tagged(), Representation::Smi());
}

}  // namespace internal
}  // namespace v8