Serde栈增长适配器

此crate提供了一个Serde适配器，通过动态增长栈来避免栈溢出。

请注意，当处理深层嵌套数据时，您可能需要保护序列化和反序列化之外的递归操作，包括但不限于Display和Debug以及Drop实现。

[dependencies]
serde = "1.0"
serde_stacker = "0.1"

反序列化示例

use serde::Deserialize;
use serde_json::Value;

fn main() {
    let mut json = String::new();
    for _ in 0..10000 {
        json = format!("[{}]", json);
    }

    let mut deserializer = serde_json::Deserializer::from_str(&json);
    deserializer.disable_recursion_limit();
    let deserializer = serde_stacker::Deserializer::new(&mut deserializer);
    let value = Value::deserialize(deserializer).unwrap();

    carefully_drop_nested_arrays(value);
}

fn carefully_drop_nested_arrays(value: Value) {
    let mut stack = vec![value];
    while let Some(value) = stack.pop() {
        if let Value::Array(array) = value {
            stack.extend(array);
        }
    }
}

序列化示例

use serde::Serialize;
use serde_json::Value;

fn main() {
    let mut value = Value::Null;
    for _ in 0..10000 {
        value = Value::Array(vec![value]);
    }

    let mut out = Vec::new();
    let mut serializer = serde_json::Serializer::new(&mut out);
    let serializer = serde_stacker::Serializer::new(&mut serializer);
    let result = value.serialize(serializer);

    carefully_drop_nested_arrays(value);

    result.unwrap();
    assert_eq!(out.len(), 10000 + "null".len() + 10000);
}

fn carefully_drop_nested_arrays(value: Value) {
    let mut stack = vec![value];
    while let Some(value) = stack.pop() {
        if let Value::Array(array) = value {
            stack.extend(array);
        }
    }
}

许可证