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/*
* AquaVM Workflow Engine
*
* Copyright (C) 2024 Fluence DAO
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
/*
* This file is based on serde_json crate licensed under conditions
* of MIT License.
* Copyright (C) 2023 by Erick Tryzelaar and David Tolnay
* Permission is hereby granted, free of charge, to any
* person obtaining a copy of this software and associated
* documentation files (the "Software"), to deal in the
* Software without restriction, including without
* limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software
* is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice
* shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
* ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
* SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
use crate::value::JValue;
use crate::{JsonString, Map};
use core::fmt;
use serde::de::{self, Deserialize, DeserializeSeed, MapAccess, SeqAccess, Visitor};
use serde_json::Number;
use std::vec::Vec;
impl<'de> Deserialize<'de> for JValue {
#[inline]
fn deserialize<D>(deserializer: D) -> Result<JValue, D::Error>
where
D: serde::Deserializer<'de>,
{
struct ValueVisitor;
impl<'de> Visitor<'de> for ValueVisitor {
type Value = JValue;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("any valid JSON value")
}
#[inline]
fn visit_bool<E>(self, value: bool) -> Result<JValue, E> {
Ok(JValue::Bool(value))
}
#[inline]
fn visit_i64<E>(self, value: i64) -> Result<JValue, E> {
Ok(JValue::Number(value.into()))
}
#[inline]
fn visit_u64<E>(self, value: u64) -> Result<JValue, E> {
Ok(JValue::Number(value.into()))
}
#[inline]
fn visit_f64<E>(self, value: f64) -> Result<JValue, E> {
Ok(Number::from_f64(value).map_or(JValue::Null, JValue::Number))
}
fn visit_str<E>(self, value: &str) -> Result<JValue, E>
where
E: serde::de::Error,
{
Ok(JValue::String(value.into()))
}
#[inline]
fn visit_none<E>(self) -> Result<JValue, E> {
Ok(JValue::Null)
}
#[inline]
fn visit_some<D>(self, deserializer: D) -> Result<JValue, D::Error>
where
D: serde::Deserializer<'de>,
{
Deserialize::deserialize(deserializer)
}
#[inline]
fn visit_unit<E>(self) -> Result<JValue, E> {
Ok(JValue::Null)
}
#[inline]
fn visit_seq<V>(self, mut visitor: V) -> Result<JValue, V::Error>
where
V: SeqAccess<'de>,
{
let mut vec = Vec::new();
while let Some(elem) = tri!(visitor.next_element()) {
vec.push(elem);
}
Ok(JValue::Array(vec.into()))
}
fn visit_map<V>(self, mut visitor: V) -> Result<JValue, V::Error>
where
V: MapAccess<'de>,
{
match tri!(visitor.next_key_seed(KeyClassifier)) {
Some(KeyClass::Map(first_key)) => {
let mut values = Map::<JsonString, JValue>::new();
values.insert(first_key, tri!(visitor.next_value()));
while let Some((key, value)) = tri!(visitor.next_entry::<JsonString, _>()) {
values.insert(key, value);
}
Ok(JValue::Object(values.into()))
}
None => Ok(JValue::Object(Map::new().into())),
}
}
}
deserializer.deserialize_any(ValueVisitor)
}
}
struct KeyClassifier;
enum KeyClass {
Map(JsonString),
}
impl<'de> DeserializeSeed<'de> for KeyClassifier {
type Value = KeyClass;
fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
where
D: serde::Deserializer<'de>,
{
deserializer.deserialize_str(self)
}
}
impl<'de> Visitor<'de> for KeyClassifier {
type Value = KeyClass;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a string key")
}
fn visit_str<E>(self, s: &str) -> Result<Self::Value, E>
where
E: de::Error,
{
Ok(KeyClass::Map(s.into()))
}
}