C++ (Cpp) TYPE_TO_DESTR_IDXの例

コード例 #1

ファイル: type-variant.cpp プロジェクト: aripringle/hhvm

}

Variant::Variant(CVarWithRefBind v) {
  constructWithRefHelper(variant(v));
}

/*
 * The destruct functions below all arbitrarily take RefData* as an
 * example of a refcounted object, then just cast to the proper type.
 * This is safe because we have compile time assertions that guarantee that
 * the _count field will always be exactly FAST_REFCOUNT_OFFSET bytes from
 * the beginning of the object for the StringData, ArrayData, ObjectData,
 * ResourceData, and RefData classes.
 */

static_assert(TYPE_TO_DESTR_IDX(KindOfString) == 1, "String destruct index");
static_assert(TYPE_TO_DESTR_IDX(KindOfArray)  == 2,  "Array destruct index");
static_assert(TYPE_TO_DESTR_IDX(KindOfObject) == 3, "Object destruct index");
static_assert(TYPE_TO_DESTR_IDX(KindOfResource) == 4,
              "Resource destruct index");
static_assert(TYPE_TO_DESTR_IDX(KindOfRef)    == 5,    "Ref destruct index");

static_assert(kDestrTableSize == 6,
              "size of g_destructors[] must be kDestrTableSize");

const RawDestructor g_destructors[] = {
  nullptr,
  (RawDestructor)getMethodPtr(&StringData::release),
  (RawDestructor)getMethodPtr(&ArrayData::release),
  (RawDestructor)getMethodPtr(&ObjectData::release),
  (RawDestructor)getMethodPtr(&ResourceData::release),

コード例 #2

ファイル: type-variant.cpp プロジェクト: Blueprint-Marketing/hhvm

void tweak_variant_dtors() {
  if (RuntimeOption::EnableObjDestructCall) return;
  g_destructors[TYPE_TO_DESTR_IDX(KindOfObject)] =
    (RawDestructor)getMethodPtr(&ObjectData::releaseNoObjDestructCheck);
}