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| author | sterni <sternenseemann@systemli.org> | 2022-09-13T13·37+0200 |
|---|---|---|
| committer | sterni <sternenseemann@systemli.org> | 2022-09-15T11·47+0000 |
| commit | da1d71a4e8e3afee09d8f72b79b6042d4ccbfc2d (patch) | |
| tree | fbe325478c5e818b824073fab3a2be98c0b1c26f /tvix/eval/src/builtins/mod.rs | |
| parent | 16da548f93c9e8e9d4771240bb4a1bf14b9665aa (diff) | |
feat(tvix/eval): implement correct toString behavior r/4857
Implement C++ Nix's `EvalState::coerceToString` minus some of the Path / store handling. This is currently only used for `toString` which does all possible coercions, but we've already prepared the weaker coercion variant which is e.g. used for builtins that expect string arguments. `EvalState::coerceToPath` is still missing for builtins that need a path, but it'll be easy to build on top of this. Change-Id: I78d15576b18921791d04b6b1e964b951fdef22c6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6571 Autosubmit: sterni <sternenseemann@systemli.org> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
Diffstat (limited to 'tvix/eval/src/builtins/mod.rs')
| -rw-r--r-- | tvix/eval/src/builtins/mod.rs | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tvix/eval/src/builtins/mod.rs b/tvix/eval/src/builtins/mod.rs index 0fadb738d529..74215cd37c92 100644 --- a/tvix/eval/src/builtins/mod.rs +++ b/tvix/eval/src/builtins/mod.rs @@ -10,7 +10,7 @@ use std::{ use crate::{ errors::ErrorKind, - value::{Builtin, NixAttrs, NixList, NixString, Value}, + value::{Builtin, CoercionKind, NixAttrs, NixList, NixString, Value}, }; use crate::arithmetic_op; @@ -121,9 +121,9 @@ fn pure_builtins() -> Vec<Builtin> { )); }), Builtin::new("toString", 1, |args, vm| { - force!(vm, &args[0], value, { - Ok(Value::String(format!("{}", value).into())) - }) + args[0] + .coerce_to_string(CoercionKind::Strong, vm) + .map(|s| Value::String(s)) }), Builtin::new("typeOf", 1, |args, vm| { force!(vm, &args[0], value, { |