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AK: Add JSON object/array for-each methods for fallible callbacks

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This allows the provided callback to return an ErrorOr-like type to
propagate errors back to the caller.
This commit is contained in:
Timothy Flynn 2022-11-17 08:15:01 -05:00 • committed by Linus Groh
parent 56ab529752
commit 13b18a182a
3 changed files with 129 additions and 0 deletions
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12
AK/JsonArray.h
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@ -7,6 +7,7 @@
#pragma once
#include <AK/Concepts.h>
#include <AK/Error.h>
#include <AK/JsonArraySerializer.h>
#include <AK/JsonValue.h>
#include <AK/Vector.h>
@ -14,6 +15,9 @@
namespace AK {
class JsonArray {
template<typename Callback>
using CallbackErrorType = decltype(declval<Callback>()(declval<JsonValue const&>()).release_error());
public:
JsonArray() = default;
~JsonArray() = default;
@ -76,6 +80,14 @@ public:
callback(value);
}
template<FallibleFunction<JsonValue const&> Callback>
ErrorOr<void, CallbackErrorType<Callback>> try_for_each(Callback&& callback) const
{
for (auto const& value : m_values)
TRY(callback(value));
return {};
}
[[nodiscard]] Vector<JsonValue> const& values() const { return m_values; }
void ensure_capacity(size_t capacity) { m_values.ensure_capacity(capacity); }