diff options
Diffstat (limited to 'src/qml/jsruntime/qv4value_p.h')
| -rw-r--r-- | src/qml/jsruntime/qv4value_p.h | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/src/qml/jsruntime/qv4value_p.h b/src/qml/jsruntime/qv4value_p.h index 816b8fb11b..4ff0565f9b 100644 --- a/src/qml/jsruntime/qv4value_p.h +++ b/src/qml/jsruntime/qv4value_p.h @@ -254,34 +254,47 @@ public: Q_ASSERT(isDouble()); return Double_Type; } -#ifndef QV4_USE_64_BIT_VALUE_ENCODING + // Shared between 32-bit and 64-bit encoding + enum { + Tag_Shift = 32 + }; + + // Used only by 64-bit encoding + static const quint64 NaNEncodeMask = 0xfffc000000000000ll; + enum { + IsDouble_Shift = 64-14, + IsManagedOrUndefined_Shift = 64-15, + IsIntegerConvertible_Shift = 64-16, + IsDoubleTag_Shift = IsDouble_Shift - Tag_Shift, + Managed_Type_Internal_64 = 0 + }; + static const quint64 Immediate_Mask_64 = 0x00020000u; // bit 49 + + // Used only by 32-bit encoding enum Masks { SilentNaNBit = 0x00040000, - NaN_Mask = 0x7ff80000, NotDouble_Mask = 0x7ffa0000, - Immediate_Mask = NotDouble_Mask | 0x00020000u | SilentNaNBit, - Tag_Shift = 32 }; + static const quint64 Immediate_Mask_32 = NotDouble_Mask | 0x00020000u | SilentNaNBit; enum { - Managed_Type_Internal = NotDouble_Mask + Managed_Type_Internal_32 = NotDouble_Mask }; -#else - static const quint64 NaNEncodeMask = 0xfffc000000000000ll; - static const quint64 Immediate_Mask = 0x00020000u; // bit 49 - enum Masks { - NaN_Mask = 0x7ff80000, +#ifdef QV4_USE_64_BIT_VALUE_ENCODING + enum { + Managed_Type_Internal = Managed_Type_Internal_64 }; + static const quint64 Immediate_Mask = Immediate_Mask_64; +#else enum { - IsDouble_Shift = 64-14, - IsManagedOrUndefined_Shift = 64-15, - IsIntegerConvertible_Shift = 64-16, - Tag_Shift = 32, - IsDoubleTag_Shift = IsDouble_Shift - Tag_Shift, - Managed_Type_Internal = 0 + Managed_Type_Internal = Managed_Type_Internal_32 }; + static const quint64 Immediate_Mask = Immediate_Mask_32; #endif + enum { + NaN_Mask = 0x7ff80000, + }; enum ValueTypeInternal { Empty_Type_Internal = Immediate_Mask | 0, ConvertibleToInt = Immediate_Mask | 0x10000u, // bit 48 @@ -544,7 +557,7 @@ inline bool Value::asArrayIndex(uint &idx) const } double d = doubleValue(); idx = (uint)d; - return (idx == d); + return (idx == d && idx != UINT_MAX); } #endif |