ladybird/Userland/Libraries/LibSQL/TupleDescriptor.h
Ali Mohammad Pur 5e1499d104 Everywhere: Rename {Deprecated => Byte}String
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).

This commit is auto-generated:
  $ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
    Meta Ports Ladybird Tests Kernel)
  $ perl -pie 's/\bDeprecatedString\b/ByteString/g;
    s/deprecated_string/byte_string/g' $xs
  $ clang-format --style=file -i \
    $(git diff --name-only | grep \.cpp\|\.h)
  $ gn format $(git ls-files '*.gn' '*.gni')
2023-12-17 18:25:10 +03:30

105 lines
2.7 KiB
C++

/*
* Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Vector.h>
#include <LibSQL/Serializer.h>
#include <LibSQL/Type.h>
namespace SQL {
struct TupleElementDescriptor {
ByteString schema { "" };
ByteString table { "" };
ByteString name { "" };
SQLType type { SQLType::Text };
Order order { Order::Ascending };
bool operator==(TupleElementDescriptor const&) const = default;
void serialize(Serializer& serializer) const
{
serializer.serialize(name);
serializer.serialize<u8>((u8)type);
serializer.serialize<u8>((u8)order);
}
void deserialize(Serializer& serializer)
{
name = serializer.deserialize<ByteString>();
type = (SQLType)serializer.deserialize<u8>();
order = (Order)serializer.deserialize<u8>();
}
size_t length() const
{
return sizeof(u32) + name.length() + 2 * sizeof(u8);
}
ByteString to_byte_string() const
{
return ByteString::formatted(" name: {} type: {} order: {}", name, SQLType_name(type), Order_name(order));
}
};
class TupleDescriptor
: public Vector<TupleElementDescriptor>
, public RefCounted<TupleDescriptor> {
public:
TupleDescriptor() = default;
~TupleDescriptor() = default;
[[nodiscard]] int compare_ignoring_names(TupleDescriptor const& other) const
{
if (size() != other.size())
return (int)size() - (int)other.size();
for (auto ix = 0u; ix < size(); ++ix) {
auto elem = (*this)[ix];
auto other_elem = other[ix];
if ((elem.type != other_elem.type) || (elem.order != other_elem.order)) {
return 1;
}
}
return 0;
}
void serialize(Serializer& serializer) const
{
serializer.serialize<u32>(size());
for (auto& element : *this) {
serializer.serialize<TupleElementDescriptor>(element);
}
}
void deserialize(Serializer& serializer)
{
auto sz = serializer.deserialize<u32>();
for (auto ix = 0u; ix < sz; ix++) {
append(serializer.deserialize<TupleElementDescriptor>());
}
}
size_t length() const
{
size_t len = sizeof(u32);
for (auto& element : *this)
len += element.length();
return len;
}
ByteString to_byte_string() const
{
Vector<ByteString> elements;
for (auto& element : *this)
elements.append(element.to_byte_string());
return ByteString::formatted("[\n{}\n]", ByteString::join('\n', elements));
}
using Vector<TupleElementDescriptor>::operator==;
};
}