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Fix partial specialization issue

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This commit is contained in:
Milo Yip 2016-01-30 23:07:51 +08:00
parent ed12665f16
commit b8b7dfedd1
1 changed files with 31 additions and 28 deletions
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59
include/rapidjson/schema.h
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@ -1249,6 +1249,36 @@ private:
bool exclusiveMaximum_;
};
template<typename Stack, typename Ch>
struct TokenHelper {
RAPIDJSON_FORCEINLINE static void AppendIndexToken(Stack& documentStack, SizeType index) {
*documentStack.template Push<Ch>() = '/';
char buffer[21];
size_t length = static_cast<size_t>((sizeof(SizeType) == 4 ? u32toa(index, buffer) : u64toa(index, buffer)) - buffer);
for (size_t i = 0; i < length; i++)
*documentStack.template Push<Ch>() = buffer[i];
}
};
// Partial specialized version for char to prevent buffer copying.
template <typename Stack>
struct TokenHelper<Stack, char> {
RAPIDJSON_FORCEINLINE static void AppendIndexToken(Stack& documentStack, SizeType index) {
if (sizeof(SizeType) == 4) {
char *buffer = documentStack.template Push<char>(1 + 10); // '/' + uint
*buffer++ = '/';
const char* end = internal::u32toa(index, buffer);
documentStack.template Pop<char>(static_cast<size_t>(10 - (end - buffer)));
}
else {
char *buffer = documentStack.template Push<char>(1 + 20); // '/' + uint64
*buffer++ = '/';
const char* end = internal::u64toa(index, buffer);
documentStack.template Pop<char>(static_cast<size_t>(20 - (end - buffer)));
}
}
};
} // namespace internal
///////////////////////////////////////////////////////////////////////////////
@ -1709,7 +1739,7 @@ private:
PushSchema(root_);
else {
if (CurrentContext().inArray)
AppendToken<Ch>(CurrentContext().arrayElementIndex);
internal::TokenHelper<internal::Stack<StateAllocator>, Ch>::AppendIndexToken(documentStack_, CurrentContext().arrayElementIndex);
if (!CurrentSchema().BeginValue(CurrentContext()))
return false;
@ -1789,33 +1819,6 @@ private:
}
}
template<typename Ch>
void AppendToken(SizeType index) {
*documentStack_.template Push<Ch>() = '/';
char buffer[21];
size_t length = static_cast<size_t>((sizeof(SizeType) == 4 ? internal::u32toa(index, buffer) : internal::u64toa(index, buffer)) - buffer);
for (size_t i = 0; i < length; i++)
*documentStack_.template Push<Ch>() = buffer[i];
}
// Specialized version for char to prevent buffer copying.
template <>
void AppendToken<char>(SizeType index) {
if (sizeof(SizeType) == 4) {
char *buffer = documentStack_.template Push<Ch>(1 + 10); // '/' + uint
*buffer++ = '/';
const char* end = internal::u32toa(index, buffer);
documentStack_.template Pop<Ch>(static_cast<size_t>(10 - (end - buffer)));
}
else {
char *buffer = documentStack_.template Push<Ch>(1 + 20); // '/' + uint64
*buffer++ = '/';
const char* end = internal::u64toa(index, buffer);
documentStack_.template Pop<Ch>(static_cast<size_t>(20 - (end - buffer)));
}
}
RAPIDJSON_FORCEINLINE void PushSchema(const SchemaType& schema) { new (schemaStack_.template Push<Context>()) Context(*this, &schema); }
RAPIDJSON_FORCEINLINE void PopSchema() {