openworkers-serde-v8 146.0.0

Rust to V8 serialization and deserialization for OpenWorkers
Documentation 
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// Copyright 2018-2025 the Deno authors. MIT license.

use super::buffer::JsBuffer;
use super::transl8::FromV8;
use crate::Error;
use crate::magic::transl8::impl_magic;
use std::ops::Deref;

#[derive(Debug)]
pub enum StringOrBuffer {
    Buffer(JsBuffer),
    String(String),
}

impl_magic!(StringOrBuffer);

impl Deref for StringOrBuffer {
    type Target = [u8];
    fn deref(&self) -> &Self::Target {
        match self {
            Self::Buffer(b) => b.as_ref(),
            Self::String(s) => s.as_bytes(),
        }
    }
}

impl<'a> TryFrom<&'a StringOrBuffer> for &'a str {
    type Error = std::str::Utf8Error;
    fn try_from(value: &'a StringOrBuffer) -> Result<Self, Self::Error> {
        match value {
            StringOrBuffer::String(s) => Ok(s.as_str()),
            StringOrBuffer::Buffer(b) => std::str::from_utf8(b.as_ref()),
        }
    }
}

impl FromV8 for StringOrBuffer {
    fn from_v8<'scope, 'i>(
        scope: &mut v8::PinScope<'scope, 'i>,
        value: v8::Local<'scope, v8::Value>,
    ) -> Result<Self, crate::Error> {
        match JsBuffer::from_v8(scope, value) {
            Ok(buf) => {
                return Ok(Self::Buffer(buf));
            }
            _ => {
                if let Ok(s) = crate::from_v8(scope, value) {
                    return Ok(Self::String(s));
                }
            }
        }
        Err(Error::ExpectedBuffer(value.type_repr()))
    }
}