snix/tvix/eval/src/tests/nix_tests/eval-okay-tojson.nix
Vincent Ambo 939cebd0f1 fix(tvix/eval): implement cppnix JSON-serialisation semantics
This drops the usage of serde::Serialize, as the trait can not be used
to implement the correct semantics (function colouring!).

Instead, a manual JSON serialisation function is written which
correctly handles toString, outPath and other similar weirdnesses.

Unexpectedly, the eval-okay-tojson test from the C++ Nix test suite
now passes, too.

This fixes an issue where serialising data structures containing
derivations to JSON would fail.

Change-Id: I5c39e3d8356ee93a07eda481410f88610f6dd9f8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8209
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2023-03-13 20:30:59 +00:00

13 lines
260 B
Nix

builtins.toJSON
{ a = 123;
b = -456;
c = "foo";
d = "foo\n\"bar\"";
e = true;
f = false;
g = [ 1 2 3 ];
h = [ "a" [ "b" { "foo\nbar" = {}; } ] ];
i = 1 + 2;
j = 1.44;
k = { __toString = self: self.a; a = "foo"; };
}