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feat(tvix/eval): implement builtins.toJSON

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Implements `Serialize` for `tvix_eval::Value`. Special care is taken
with serialisation of attribute sets, and forcing of thunks.

The tests should cover both cases well.

Change-Id: I9bb135bacf6f87bc6bd0bd88cef0a42308e6c335
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7803
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
This commit is contained in:
Vincent Ambo 2023-01-10 14:52:59 +03:00 • committed by clbot
parent fc7e52b4ac
commit 02d35e4aa6
11 changed files with 75 additions and 10 deletions
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7
tvix/eval/src/value/string.rs
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@ -9,16 +9,17 @@ use std::path::Path;
use std::{borrow::Cow, fmt::Display, str::Chars};
use serde::de::{Deserializer, Visitor};
use serde::Deserialize;
use serde::{Deserialize, Serialize};
#[derive(Clone, Debug)]
#[derive(Clone, Debug, Serialize)]
#[serde(untagged)]
enum StringRepr {
Smol(SmolStr),
Heap(String),
}
#[repr(transparent)]
#[derive(Clone, Debug)]
#[derive(Clone, Debug, Serialize)]
pub struct NixString(StringRepr);
impl PartialEq for NixString {