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datatype.h
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/*
+----------------------------------------------------------------------+
| HipHop for PHP |
+----------------------------------------------------------------------+
| Copyright (c) 2010-present Facebook, Inc. (http://www.facebook.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
*/
#ifndef incl_HPHP_DATATYPE_H_
#define incl_HPHP_DATATYPE_H_
#include <cstdint>
#include <cstdio>
#include <string>
#include <folly/Format.h>
#include <folly/Optional.h>
#include "hphp/util/assertions.h"
#include "hphp/util/portability.h"
namespace HPHP {
///////////////////////////////////////////////////////////////////////////////
/*
* DataType is the type tag for a TypedValue (see typed-value.h).
*
* Beware if you change the order, as we may have a few type checks in the code
* that depend on the order. Also beware of adding to the number of bits
* needed to represent this. (Known dependency in unwind-x64.h.)
*/
enum DataType : int8_t {
// Values below zero are not PHP values, but runtime-internal.
KindOfClass = -16, // 11110000
// Any code that static_asserts about the value of KindOfNull may also depend
// on there not being any values between KindOfUninit and KindOfNull.
// Hack array bit
// |PHP array bit
// ||string bit
// |||uncounted init bit
// ||||
KindOfUninit = 0x00, // 00000000
KindOfNull = 0x01, // 00000001
KindOfInt64 = 0x11, // 00010001
KindOfPersistentVec = 0x19, // 00011001
KindOfBoolean = 0x21, // 00100001
KindOfPersistentString = 0x23, // 00100011
KindOfPersistentDict = 0x29, // 00101001
KindOfDouble = 0x31, // 00110001
KindOfPersistentArray = 0x35, // 00110101
KindOfPersistentKeyset = 0x39, // 00111001
KindOfObject = 0x40, // 01000000
KindOfResource = 0x50, // 01010000
KindOfVec = 0x58, // 01011000
KindOfString = 0x62, // 01100010
KindOfDict = 0x68, // 01101000
KindOfRef = 0x70, // 01110000
KindOfArray = 0x74, // 01110100
KindOfKeyset = 0x78, // 01111000
};
/*
* Sentinel invalid DataTypes.
*
* These values must differ from that of any real DataType. A live TypedValue
* should never have these as its type tag, so we keep them out of the enum to
* keep switches cleaner.
*
* These should only be used where MaybeDataType cannot be (e.g., in
* TypedValues, such as for MixedArray tombstones).
*/
constexpr DataType kInvalidDataType = static_cast<DataType>(-1);
constexpr DataType kExtraInvalidDataType = static_cast<DataType>(-2);
/*
* Function parameter types for users of DataType that want a representation
* for top and bottom types.
*
* These are intended to be used for, e.g., discriminating constructors; they
* should never be munged into a DataType data member.
*/
enum class KindOfNone {};
enum class KindOfAny {};
/*
* Optional DataType.
*
* Used for (DataType|KindOfNoneType) or (DataType|KindOfAnyType), depending on
* context. Users who wish to use (DataType|KindOfNoneType|KindOfAnyType)
* should consider dying in a fire.
*/
using MaybeDataType = folly::Optional<DataType>;
///////////////////////////////////////////////////////////////////////////////
/*
* All DataTypes are expressible in seven bits.
*/
constexpr unsigned kDataTypeMask = 0x7f;
/*
* DataType limits.
*/
constexpr int8_t kMinDataType = KindOfClass;
constexpr int8_t kMaxDataType = KindOfKeyset;
/*
* KindOfStringBit must be set in KindOfPersistentString and KindOfString,
* and it must be 0 in any other DataType.
*/
constexpr int KindOfStringBit = 0x02;
/*
* KindOfArrayBit must be set in KindOfPersistentArray and KindOfArray, and
* it must be 0 in any other DataType.
*/
constexpr int KindOfArrayBit = 0x04;
/*
* KindOfHackArrayBit must be set in KindOfPersistentVec, KindOfVec,
* KindOfPersistentDict, KindOfDict, KindOfPersistentKeyset, and KindOfKeyset,
* and it must be 0 in any other DataType.
*/
constexpr int KindOfHackArrayBit = 0x08;
/*
* The result of ANDing KindOfArrayLikeMask against KindOfPersistentVec,
* KindOfVec, KindOfPersistentDict, KindOfDict, KindOfPersistentKeyset,
* KindOfKeyset, KindOfPersistentArray, or KindOfArray must be non-zero, and 0
* against any other DataType.
*/
constexpr int KindOfArrayLikeMask = KindOfArrayBit | KindOfHackArrayBit;
/*
* KindOfUncountedInitBit must be set for Null, Boolean, Int64, Double,
* PersistentString, PersistentArray, and it must be 0 for any other DataType.
*/
constexpr int KindOfUncountedInitBit = 0x01;
/*
* One of KindOfHashPersistentBits must be set for KindOfString,
* KindOfPersistentString, KindOfArray, KindOfPersistentArray, KindOfVec,
* KindOfPersistentVec, KindOfPersistentKeyset, KindOfKeyset, KindOfDict, and
* KindOfPersistentDict. It signifies the type has both persistent and
* non-persistent variants.
*/
constexpr int KindOfHasPersistentBits =
KindOfStringBit | KindOfArrayBit | KindOfHackArrayBit;
/*
* The result of ANDing kDataTypeEquivalentMask against KindOf[Persistent]Array,
* KindOf[Persistent]String, KindOf[Persistent]Vec, KindOf[Persistent]Dict,
* KindOf[Persistent]Keyset, or KindOfNull/KindOfUninit yields some unspecified
* value which is the same for each persistent/non-persistent pair, and
* different for all else. Used to check for equivalency between persistent and
* non-persistent DataTypes.
*/
constexpr int kDataTypeEquivalentMask = 0x3e;
/*
* The result of ANDing kDataTypeEquivalentMask against KindOfPersistentVec and
* KindOfVec results in KindOfHackArrayVecType. ANDing against
* KindOfPersistentDict and KindOfDict results in
* KindOfHackArrayDictType. ANDing against KindOfPersistentKeyset and
* KindOfKeyset results in KindOfHackArrayKeysetType. For any other DataType,
* some other value other than KindOfHackArrayVecType or KindOfHackArrayDictType
* is the result.
*/
constexpr int KindOfHackArrayVecType = 0x18;
constexpr int KindOfHackArrayDictType = 0x28;
constexpr int KindOfHackArrayKeysetType = 0x38;
/*
* All DataTypes greater than this value are refcounted.
*/
constexpr DataType KindOfRefCountThreshold = KindOfPersistentKeyset;
///////////////////////////////////////////////////////////////////////////////
// DataTypeCategory
// These must be kept in order from least to most specific.
//
// Note that Countness can be relaxed to Generic in optimizeProfiledGuards(), so
// it should only be used to constrain values used by instructions that work
// even in the absence of type information.
#define DT_CATEGORIES(func) \
func(Generic) \
func(Countness) \
func(BoxAndCountness) \
func(BoxAndCountnessInit) \
func(Specific) \
func(Specialized)
enum class DataTypeCategory : uint8_t {
#define DT(name) name,
DT_CATEGORIES(DT)
#undef DT
};
#define DT(name) auto constexpr DataType##name = DataTypeCategory::name;
DT_CATEGORIES(DT)
#undef DT
///////////////////////////////////////////////////////////////////////////////
// Names.
inline std::string tname(DataType t) {
switch (t) {
#define CS(name) \
case KindOf ## name: return std::string(#name);
CS(Uninit)
CS(Null)
CS(Boolean)
CS(Int64)
CS(Double)
CS(PersistentString)
CS(PersistentArray)
CS(PersistentVec)
CS(PersistentDict)
CS(PersistentKeyset)
CS(String)
CS(Array)
CS(Vec)
CS(Dict)
CS(Keyset)
CS(Object)
CS(Resource)
CS(Ref)
CS(Class)
#undef CS
default: {
if (t == kInvalidDataType) {
return std::string("Invalid");
}
char buf[128];
sprintf(buf, "Unknown:%d", t);
return std::string(buf);
}
}
}
inline std::string typeCategoryName(DataTypeCategory c) {
switch (c) {
# define CASE(name) case DataType##name: return "DataType" #name;
DT_CATEGORIES(CASE)
#undef CASE
}
not_reached();
}
/*
* These are used in type-variant.cpp.
*/
constexpr int kShiftDataTypeToDestrIndex = 2;
constexpr int kDestrTableSize = 31;
constexpr unsigned typeToDestrIdx(DataType t) {
// t must be a refcounted type, but we can't actually assert that and still
// be constexpr.
return t >> kShiftDataTypeToDestrIndex;
}
///////////////////////////////////////////////////////////////////////////////
// Is-a macros.
/*
* Whether a type is valid.
*/
constexpr bool isRealType(DataType t) {
return (t >= KindOfUninit && t <= kMaxDataType) || t == KindOfClass;
}
/*
* Whether a type is refcounted.
*/
constexpr bool isRefcountedType(DataType t) {
return t > KindOfRefCountThreshold;
}
/*
* Whether a builtin return or param type is not a simple type.
*
* This is different from isRefcountedType because builtins can accept and
* return Variants, and we use folly::none to denote these cases.
*/
inline bool isBuiltinByRef(MaybeDataType t) {
return t != KindOfNull &&
t != KindOfBoolean &&
t != KindOfInt64 &&
t != KindOfDouble;
}
/*
* Whether a type is KindOfUninit or KindOfNull.
*/
constexpr bool isNullType(DataType t) {
return unsigned(t) <= KindOfNull;
}
/*
* Whether a type is any kind of string or array.
*/
constexpr bool isStringType(DataType t) {
return t & KindOfStringBit;
}
inline bool isStringType(MaybeDataType t) {
return t && isStringType(*t);
}
constexpr bool isArrayLikeType(DataType t) {
return t & KindOfArrayLikeMask;
}
inline bool isArrayLikeType(MaybeDataType t) {
return t && isArrayLikeType(*t);
}
constexpr bool isArrayType(DataType t) {
return t & KindOfArrayBit;
}
inline bool isArrayType(MaybeDataType t) {
return t && isArrayType(*t);
}
constexpr bool isHackArrayType(DataType t) {
return t & KindOfHackArrayBit;
}
inline bool isHackArrayType(MaybeDataType t) {
return t && isHackArrayType(*t);
}
constexpr bool isVecType(DataType t) {
return (t & kDataTypeEquivalentMask) == KindOfHackArrayVecType;
}
inline bool isVecType(MaybeDataType t) {
return t && isVecType(*t);
}
constexpr bool isDictType(DataType t) {
return (t & kDataTypeEquivalentMask) == KindOfHackArrayDictType;
}
inline bool isDictType(MaybeDataType t) {
return t && isDictType(*t);
}
constexpr bool isKeysetType(DataType t) {
return (t & kDataTypeEquivalentMask) == KindOfHackArrayKeysetType;
}
inline bool isKeysetType(MaybeDataType t) {
return t && isKeysetType(*t);
}
/*
* Other type-check functions.
*/
constexpr bool isIntType(DataType t) { return t == KindOfInt64; }
constexpr bool isBoolType(DataType t) { return t == KindOfBoolean; }
constexpr bool isDoubleType(DataType t) { return t == KindOfDouble; }
constexpr bool isIntKeyType(DataType t) {
return t <= KindOfInt64;
}
/*
* Return whether two DataTypes for primitive types are "equivalent" as far as
* user-visible PHP types are concerned (i.e. ignoring different types of
* strings, arrays, or nulls).
*
* Pre: t1 and t2 must both be DataTypes that represent PHP-types.
* (non-internal KindOfs.)
*/
constexpr bool equivDataTypes(DataType t1, DataType t2) {
return
(t1 == t2) ||
((t1 & t2 & KindOfHasPersistentBits) &&
((t1 & kDataTypeEquivalentMask) == (t2 & kDataTypeEquivalentMask))) ||
(isNullType(t1) && isNullType(t2));
}
///////////////////////////////////////////////////////////////////////////////
// Switch case macros.
/*
* Covers all DataTypes `dt' such that !isRefcountedType(dt) holds.
*/
#define DT_UNCOUNTED_CASE \
case KindOfUninit: \
case KindOfNull: \
case KindOfBoolean: \
case KindOfInt64: \
case KindOfDouble: \
case KindOfPersistentString: \
case KindOfPersistentArray: \
case KindOfPersistentVec: \
case KindOfPersistentDict: \
case KindOfPersistentKeyset
///////////////////////////////////////////////////////////////////////////////
// Static asserts.
static_assert(isStringType(KindOfString), "");
static_assert(isStringType(KindOfPersistentString), "");
static_assert(!isStringType(KindOfUninit), "");
static_assert(!isStringType(KindOfNull), "");
static_assert(!isStringType(KindOfBoolean), "");
static_assert(!isStringType(KindOfInt64), "");
static_assert(!isStringType(KindOfDouble), "");
static_assert(!isStringType(KindOfPersistentArray), "");
static_assert(!isStringType(KindOfArray), "");
static_assert(!isStringType(KindOfPersistentVec), "");
static_assert(!isStringType(KindOfVec), "");
static_assert(!isStringType(KindOfPersistentDict), "");
static_assert(!isStringType(KindOfDict), "");
static_assert(!isStringType(KindOfPersistentKeyset),"");
static_assert(!isStringType(KindOfKeyset), "");
static_assert(!isStringType(KindOfObject), "");
static_assert(!isStringType(KindOfResource), "");
static_assert(!isStringType(KindOfRef), "");
static_assert(!isStringType(KindOfClass), "");
static_assert(isArrayType(KindOfArray), "");
static_assert(isArrayType(KindOfPersistentArray), "");
static_assert(!isArrayType(KindOfVec), "");
static_assert(!isArrayType(KindOfPersistentVec), "");
static_assert(!isArrayType(KindOfDict), "");
static_assert(!isArrayType(KindOfPersistentDict), "");
static_assert(!isArrayType(KindOfKeyset), "");
static_assert(!isArrayType(KindOfPersistentKeyset), "");
static_assert(!isArrayType(KindOfUninit), "");
static_assert(!isArrayType(KindOfNull), "");
static_assert(!isArrayType(KindOfBoolean), "");
static_assert(!isArrayType(KindOfInt64), "");
static_assert(!isArrayType(KindOfDouble), "");
static_assert(!isArrayType(KindOfPersistentString), "");
static_assert(!isArrayType(KindOfString), "");
static_assert(!isArrayType(KindOfObject), "");
static_assert(!isArrayType(KindOfResource), "");
static_assert(!isArrayType(KindOfRef), "");
static_assert(!isArrayType(KindOfClass), "");
static_assert(isVecType(KindOfVec), "");
static_assert(isVecType(KindOfPersistentVec), "");
static_assert(!isVecType(KindOfArray), "");
static_assert(!isVecType(KindOfPersistentArray), "");
static_assert(!isVecType(KindOfDict), "");
static_assert(!isVecType(KindOfPersistentDict), "");
static_assert(!isVecType(KindOfKeyset), "");
static_assert(!isVecType(KindOfPersistentKeyset), "");
static_assert(!isVecType(KindOfUninit), "");
static_assert(!isVecType(KindOfNull), "");
static_assert(!isVecType(KindOfBoolean), "");
static_assert(!isVecType(KindOfInt64), "");
static_assert(!isVecType(KindOfDouble), "");
static_assert(!isVecType(KindOfPersistentString), "");
static_assert(!isVecType(KindOfString), "");
static_assert(!isVecType(KindOfObject), "");
static_assert(!isVecType(KindOfResource), "");
static_assert(!isVecType(KindOfRef), "");
static_assert(!isVecType(KindOfClass), "");
static_assert(isDictType(KindOfDict), "");
static_assert(isDictType(KindOfPersistentDict), "");
static_assert(!isDictType(KindOfArray), "");
static_assert(!isDictType(KindOfPersistentArray), "");
static_assert(!isDictType(KindOfVec), "");
static_assert(!isDictType(KindOfPersistentVec), "");
static_assert(!isDictType(KindOfKeyset), "");
static_assert(!isDictType(KindOfPersistentKeyset), "");
static_assert(!isDictType(KindOfUninit), "");
static_assert(!isDictType(KindOfNull), "");
static_assert(!isDictType(KindOfBoolean), "");
static_assert(!isDictType(KindOfInt64), "");
static_assert(!isDictType(KindOfDouble), "");
static_assert(!isDictType(KindOfPersistentString), "");
static_assert(!isDictType(KindOfString), "");
static_assert(!isDictType(KindOfObject), "");
static_assert(!isDictType(KindOfResource), "");
static_assert(!isDictType(KindOfRef), "");
static_assert(!isDictType(KindOfClass), "");
static_assert(isKeysetType(KindOfKeyset), "");
static_assert(isKeysetType(KindOfPersistentKeyset), "");
static_assert(!isKeysetType(KindOfArray), "");
static_assert(!isKeysetType(KindOfPersistentArray), "");
static_assert(!isKeysetType(KindOfVec), "");
static_assert(!isKeysetType(KindOfPersistentVec), "");
static_assert(!isKeysetType(KindOfDict), "");
static_assert(!isKeysetType(KindOfPersistentDict), "");
static_assert(!isKeysetType(KindOfUninit), "");
static_assert(!isKeysetType(KindOfNull), "");
static_assert(!isKeysetType(KindOfBoolean), "");
static_assert(!isKeysetType(KindOfInt64), "");
static_assert(!isKeysetType(KindOfDouble), "");
static_assert(!isKeysetType(KindOfPersistentString),"");
static_assert(!isKeysetType(KindOfString), "");
static_assert(!isKeysetType(KindOfObject), "");
static_assert(!isKeysetType(KindOfResource), "");
static_assert(!isKeysetType(KindOfRef), "");
static_assert(!isKeysetType(KindOfClass), "");
static_assert(isArrayLikeType(KindOfArray), "");
static_assert(isArrayLikeType(KindOfPersistentArray), "");
static_assert(isArrayLikeType(KindOfVec), "");
static_assert(isArrayLikeType(KindOfPersistentVec), "");
static_assert(isArrayLikeType(KindOfDict), "");
static_assert(isArrayLikeType(KindOfPersistentDict), "");
static_assert(isArrayLikeType(KindOfKeyset), "");
static_assert(isArrayLikeType(KindOfPersistentKeyset), "");
static_assert(!isArrayLikeType(KindOfUninit), "");
static_assert(!isArrayLikeType(KindOfNull), "");
static_assert(!isArrayLikeType(KindOfBoolean), "");
static_assert(!isArrayLikeType(KindOfInt64), "");
static_assert(!isArrayLikeType(KindOfDouble), "");
static_assert(!isArrayLikeType(KindOfPersistentString), "");
static_assert(!isArrayLikeType(KindOfString), "");
static_assert(!isArrayLikeType(KindOfObject), "");
static_assert(!isArrayLikeType(KindOfResource), "");
static_assert(!isArrayLikeType(KindOfRef), "");
static_assert(!isArrayLikeType(KindOfClass), "");
static_assert(isNullType(KindOfUninit), "");
static_assert(isNullType(KindOfNull), "");
static_assert(!isNullType(KindOfArray), "");
static_assert(!isNullType(KindOfPersistentArray), "");
static_assert(!isNullType(KindOfVec), "");
static_assert(!isNullType(KindOfPersistentVec), "");
static_assert(!isNullType(KindOfDict), "");
static_assert(!isNullType(KindOfPersistentDict), "");
static_assert(!isNullType(KindOfKeyset), "");
static_assert(!isNullType(KindOfPersistentKeyset), "");
static_assert(!isNullType(KindOfBoolean), "");
static_assert(!isNullType(KindOfInt64), "");
static_assert(!isNullType(KindOfDouble), "");
static_assert(!isNullType(KindOfPersistentString), "");
static_assert(!isNullType(KindOfString), "");
static_assert(!isNullType(KindOfObject), "");
static_assert(!isNullType(KindOfResource), "");
static_assert(!isNullType(KindOfRef), "");
static_assert(!isNullType(KindOfClass), "");
static_assert(isRefcountedType(KindOfString), "");
static_assert(isRefcountedType(KindOfObject), "");
static_assert(isRefcountedType(KindOfResource), "");
static_assert(isRefcountedType(KindOfRef), "");
static_assert(isRefcountedType(KindOfArray), "");
static_assert(isRefcountedType(KindOfVec), "");
static_assert(isRefcountedType(KindOfDict), "");
static_assert(isRefcountedType(KindOfKeyset), "");
static_assert(!isRefcountedType(KindOfUninit), "");
static_assert(!isRefcountedType(KindOfNull), "");
static_assert(!isRefcountedType(KindOfBoolean), "");
static_assert(!isRefcountedType(KindOfInt64), "");
static_assert(!isRefcountedType(KindOfDouble), "");
static_assert(!isRefcountedType(KindOfPersistentString), "");
static_assert(!isRefcountedType(KindOfPersistentArray), "");
static_assert(!isRefcountedType(KindOfPersistentVec), "");
static_assert(!isRefcountedType(KindOfPersistentDict), "");
static_assert(!isRefcountedType(KindOfPersistentKeyset), "");
static_assert(!isRefcountedType(KindOfClass), "");
static_assert(isIntKeyType(KindOfUninit), "");
static_assert(isIntKeyType(KindOfNull), "");
static_assert(isIntKeyType(KindOfInt64), "");
static_assert(!isIntKeyType(KindOfString), "");
static_assert(!isIntKeyType(KindOfObject), "");
static_assert(!isIntKeyType(KindOfResource), "");
static_assert(!isIntKeyType(KindOfRef), "");
static_assert(!isIntKeyType(KindOfArray), "");
static_assert(!isIntKeyType(KindOfVec), "");
static_assert(!isIntKeyType(KindOfDict), "");
static_assert(!isIntKeyType(KindOfKeyset), "");
static_assert(!isIntKeyType(KindOfBoolean), "");
static_assert(!isIntKeyType(KindOfDouble), "");
static_assert(!isIntKeyType(KindOfPersistentString), "");
static_assert(!isIntKeyType(KindOfPersistentArray), "");
static_assert(!isIntKeyType(KindOfPersistentVec), "");
static_assert(!isIntKeyType(KindOfPersistentDict), "");
static_assert(!isIntKeyType(KindOfPersistentKeyset), "");
/* Too many cases to test exhaustively, so try to capture most scenarios */
static_assert(equivDataTypes(KindOfNull, KindOfUninit), "");
static_assert(equivDataTypes(KindOfArray, KindOfPersistentArray), "");
static_assert(equivDataTypes(KindOfVec, KindOfPersistentVec), "");
static_assert(equivDataTypes(KindOfDict, KindOfPersistentDict), "");
static_assert(equivDataTypes(KindOfKeyset, KindOfPersistentKeyset), "");
static_assert(equivDataTypes(KindOfString, KindOfPersistentString), "");
static_assert(!equivDataTypes(KindOfNull, KindOfString), "");
static_assert(!equivDataTypes(KindOfNull, KindOfInt64), "");
static_assert(!equivDataTypes(KindOfNull, KindOfVec), "");
static_assert(!equivDataTypes(KindOfBoolean, KindOfInt64), "");
static_assert(!equivDataTypes(KindOfUninit, KindOfArray), "");
static_assert(!equivDataTypes(KindOfUninit, KindOfDict), "");
static_assert(!equivDataTypes(KindOfUninit, KindOfKeyset), "");
static_assert(!equivDataTypes(KindOfObject, KindOfResource), "");
static_assert(!equivDataTypes(KindOfObject, KindOfVec), "");
static_assert(!equivDataTypes(KindOfObject, KindOfPersistentVec), "");
static_assert(!equivDataTypes(KindOfObject, KindOfKeyset), "");
static_assert(!equivDataTypes(KindOfObject, KindOfPersistentKeyset),"");
static_assert(!equivDataTypes(KindOfArray, KindOfString), "");
static_assert(!equivDataTypes(KindOfArray, KindOfPersistentString), "");
static_assert(!equivDataTypes(KindOfArray, KindOfObject), "");
static_assert(!equivDataTypes(KindOfArray, KindOfVec), "");
static_assert(!equivDataTypes(KindOfArray, KindOfDict), "");
static_assert(!equivDataTypes(KindOfArray, KindOfKeyset), "");
static_assert(!equivDataTypes(KindOfArray, KindOfPersistentVec), "");
static_assert(!equivDataTypes(KindOfArray, KindOfPersistentDict), "");
static_assert(!equivDataTypes(KindOfArray, KindOfPersistentKeyset), "");
static_assert(!equivDataTypes(KindOfString, KindOfVec), "");
static_assert(!equivDataTypes(KindOfString, KindOfDict), "");
static_assert(!equivDataTypes(KindOfString, KindOfKeyset), "");
static_assert(!equivDataTypes(KindOfString, KindOfPersistentVec), "");
static_assert(!equivDataTypes(KindOfString, KindOfPersistentDict), "");
static_assert(!equivDataTypes(KindOfString, KindOfPersistentKeyset),"");
static_assert(KindOfNull & KindOfUncountedInitBit, "");
static_assert(KindOfBoolean & KindOfUncountedInitBit, "");
static_assert(KindOfInt64 & KindOfUncountedInitBit, "");
static_assert(KindOfDouble & KindOfUncountedInitBit, "");
static_assert(KindOfPersistentString & KindOfUncountedInitBit, "");
static_assert(KindOfPersistentArray & KindOfUncountedInitBit, "");
static_assert(KindOfPersistentVec & KindOfUncountedInitBit, "");
static_assert(KindOfPersistentDict & KindOfUncountedInitBit, "");
static_assert(KindOfPersistentKeyset & KindOfUncountedInitBit, "");
static_assert(!(KindOfUninit & KindOfUncountedInitBit), "");
static_assert(!(KindOfString & KindOfUncountedInitBit), "");
static_assert(!(KindOfArray & KindOfUncountedInitBit), "");
static_assert(!(KindOfVec & KindOfUncountedInitBit), "");
static_assert(!(KindOfDict & KindOfUncountedInitBit), "");
static_assert(!(KindOfKeyset & KindOfUncountedInitBit), "");
static_assert(!(KindOfObject & KindOfUncountedInitBit), "");
static_assert(!(KindOfResource & KindOfUncountedInitBit), "");
static_assert(!(KindOfRef & KindOfUncountedInitBit), "");
static_assert(!(KindOfClass & KindOfUncountedInitBit), "");
static_assert(KindOfString & KindOfHasPersistentBits, "");
static_assert(KindOfArray & KindOfHasPersistentBits, "");
static_assert(KindOfVec & KindOfHasPersistentBits, "");
static_assert(KindOfDict & KindOfHasPersistentBits, "");
static_assert(KindOfKeyset & KindOfHasPersistentBits, "");
static_assert(KindOfPersistentString & KindOfHasPersistentBits, "");
static_assert(KindOfPersistentArray & KindOfHasPersistentBits, "");
static_assert(KindOfPersistentVec & KindOfHasPersistentBits, "");
static_assert(KindOfPersistentDict & KindOfHasPersistentBits, "");
static_assert(KindOfPersistentKeyset & KindOfHasPersistentBits, "");
static_assert(!(KindOfNull & KindOfHasPersistentBits), "");
static_assert(!(KindOfBoolean & KindOfHasPersistentBits), "");
static_assert(!(KindOfInt64 & KindOfHasPersistentBits), "");
static_assert(!(KindOfDouble & KindOfHasPersistentBits), "");
static_assert(!(KindOfUninit & KindOfHasPersistentBits), "");
static_assert(!(KindOfObject & KindOfHasPersistentBits), "");
static_assert(!(KindOfResource & KindOfHasPersistentBits), "");
static_assert(!(KindOfRef & KindOfHasPersistentBits), "");
static_assert(!(KindOfClass & KindOfHasPersistentBits), "");
static_assert(KindOfUninit == 0,
"Several things assume this tag is 0, especially RDS");
static_assert(kMaxDataType <= kDataTypeMask, "");
///////////////////////////////////////////////////////////////////////////////
}
///////////////////////////////////////////////////////////////////////////////
namespace folly {
template<> class FormatValue<HPHP::DataTypeCategory> {
public:
explicit FormatValue(HPHP::DataTypeCategory val) : m_val(val) {}
template<typename Callback>
void format(FormatArg& arg, Callback& cb) const {
format_value::formatString(typeCategoryName(m_val), arg, cb);
}
private:
HPHP::DataTypeCategory m_val;
};
template<> class FormatValue<HPHP::DataType> {
public:
explicit FormatValue(HPHP::DataType dt) : m_dt(dt) {}
template<typename C>
void format(FormatArg& arg, C& cb) const {
format_value::formatString(tname(m_dt), arg, cb);
}
private:
HPHP::DataType m_dt;
};
}
///////////////////////////////////////////////////////////////////////////////
#endif