From 06909f182151cf2332a14909e8b772ab4648854e Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Mon, 5 Sep 2022 01:30:58 +0300 Subject: fix(tvix/eval): fix doc comment syntax where applicable As pointed out by grfn on cl/6091 Change-Id: I28308577b7cf99dffb4a4fd3cc8783eb9ab4d0d6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/6460 Tested-by: BuildkiteCI Reviewed-by: sterni --- tvix/eval/src/value/attrs.rs | 43 +++++++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 20 deletions(-) (limited to 'tvix/eval/src/value/attrs.rs') diff --git a/tvix/eval/src/value/attrs.rs b/tvix/eval/src/value/attrs.rs index d122f9155d2c..fddf0b582ccb 100644 --- a/tvix/eval/src/value/attrs.rs +++ b/tvix/eval/src/value/attrs.rs @@ -150,7 +150,8 @@ impl PartialEq for NixAttrs { } impl NixAttrs { - // Update one attribute set with the values of the other. + /// Return an attribute set containing the merge of the two + /// provided sets. Keys from the `other` set have precedence. pub fn update(self, other: Self) -> Self { // Short-circuit on some optimal cases: match (&self.0, &other.0) { @@ -301,17 +302,19 @@ impl NixAttrs { } } -// In Nix, name/value attribute pairs are frequently constructed from -// literals. This particular case should avoid allocation of a map, -// additional heap values etc. and use the optimised `KV` variant -// instead. -// -// `slice` is the top of the stack from which the attrset is being -// constructed, e.g. -// -// slice: [ "value" 5 "name" "foo" ] -// index: 0 1 2 3 -// stack: 3 2 1 0 +/// In Nix, name/value attribute pairs are frequently constructed from +/// literals. This particular case should avoid allocation of a map, +/// additional heap values etc. and use the optimised `KV` variant +/// instead. +/// +/// ```norust +/// `slice` is the top of the stack from which the attrset is being +/// constructed, e.g. +/// +/// slice: [ "value" 5 "name" "foo" ] +/// index: 0 1 2 3 +/// stack: 3 2 1 0 +/// ``` fn attempt_optimise_kv(slice: &mut [Value]) -> Option { let (name_idx, value_idx) = { match (&slice[2], &slice[0]) { @@ -340,8 +343,8 @@ fn attempt_optimise_kv(slice: &mut [Value]) -> Option { })) } -// Set an attribute on an in-construction attribute set, while -// checking against duplicate keys. +/// Set an attribute on an in-construction attribute set, while +/// checking against duplicate keys. fn set_attr(attrs: &mut NixAttrs, key: NixString, value: Value) -> Result<(), ErrorKind> { match attrs.0.map_mut().entry(key) { btree_map::Entry::Occupied(entry) => Err(ErrorKind::DuplicateAttrsKey { @@ -355,12 +358,12 @@ fn set_attr(attrs: &mut NixAttrs, key: NixString, value: Value) -> Result<(), Er } } -// Set a nested attribute inside of an attribute set, throwing a -// duplicate key error if a non-hashmap entry already exists on the -// path. -// -// There is some optimisation potential for this simple implementation -// if it becomes a problem. +/// Set a nested attribute inside of an attribute set, throwing a +/// duplicate key error if a non-hashmap entry already exists on the +/// path. +/// +/// There is some optimisation potential for this simple implementation +/// if it becomes a problem. fn set_nested_attr( attrs: &mut NixAttrs, key: NixString, -- cgit 1.4.1