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| author | William Carroll <wpcarro@gmail.com> | 2022-08-30T00·33-0700 |
|---|---|---|
| committer | tazjin <tazjin@tvl.su> | 2022-09-07T20·56+0000 |
| commit | 197fe37daef242596900bcab948d6fc14348f910 (patch) | |
| tree | ae7daee7509d03cd2b18fbc2aa16a61dc28f35f6 /tvix/eval/src/value/list.rs | |
| parent | 15e2bc54f1beab0f99a7d7199af92a3139052302 (diff) | |
feat(tvix/eval): Support builtins.length r/4740
Get the length of a list Change-Id: I41d91e96d833269541a1b3c23b7cc879f96d1e5a Reviewed-on: https://cl.tvl.fyi/c/depot/+/6407 Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
Diffstat (limited to 'tvix/eval/src/value/list.rs')
| -rw-r--r-- | tvix/eval/src/value/list.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tvix/eval/src/value/list.rs b/tvix/eval/src/value/list.rs index b8682a5b3d..da86fdda26 100644 --- a/tvix/eval/src/value/list.rs +++ b/tvix/eval/src/value/list.rs @@ -28,6 +28,10 @@ impl NixList { lhs } + pub fn len(&self) -> usize { + self.0.len() + } + pub fn construct(count: usize, stack_slice: Vec<Value>) -> Self { debug_assert!( count == stack_slice.len(), |