deno.land / x / deno@v1.28.2 / serde_v8 / magic / value.rs

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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
use crate::magic::transl8::impl_magic;use crate::magic::transl8::FromV8;use crate::magic::transl8::ToV8;use std::mem::transmute;
/// serde_v8::Value allows passing through `v8::Value`s untouched/// when de/serializing & allows mixing rust & v8 values in structs, tuples...//// SAFETY: caveat emptor, the rust-compiler can no longer link lifetimes to their// original scope, you must take special care in ensuring your handles don't outlive their scopepub struct Value<'s> { pub v8_value: v8::Local<'s, v8::Value>,}impl_magic!(Value<'_>);
impl<'s> From<v8::Local<'s, v8::Value>> for Value<'s> { fn from(v8_value: v8::Local<'s, v8::Value>) -> Self { Self { v8_value } }}
impl<'s> From<Value<'s>> for v8::Local<'s, v8::Value> { fn from(v: Value<'s>) -> Self { v.v8_value }}
impl ToV8 for Value<'_> { fn to_v8<'a>( &mut self, _scope: &mut v8::HandleScope<'a>, ) -> Result<v8::Local<'a, v8::Value>, crate::Error> { // SAFETY: not fully safe, since lifetimes are detached from original scope Ok(unsafe { transmute(self.v8_value) }) }}
impl FromV8 for Value<'_> { fn from_v8( _scope: &mut v8::HandleScope, value: v8::Local<v8::Value>, ) -> Result<Self, crate::Error> { // SAFETY: not fully safe, since lifetimes are detached from original scope Ok(unsafe { transmute::<Value, Value>(value.into()) }) }}
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a year ago