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refactor(tvix/eval): Box Value::String

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NixString is *quite* large - like 80 bytes - because of the extra
capacity value for BString and because of the context. We want to keep
Value small since we're passing it around a lot, so let's box the
NixString inside Value::String to save on some memory, and make cloning
ostensibly a little cheaper

Change-Id: I343c8b4e7f61dc3dcbbaba4382efb3b3e5bbabb2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10729
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
This commit is contained in:
Aspen Smith 2024-02-01 12:28:29 -05:00 • committed by aspen
parent 4c5d9fa356
commit 5f0f4ea374
15 changed files with 69 additions and 72 deletions
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8
tvix/glue/src/builtins/mod.rs
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@ -74,7 +74,7 @@ mod tests {
match value {
tvix_eval::Value::String(s) => {
assert_eq!(s, "/nix/store/xpcvxsx5sw4rbq666blz6sxqlmsqphmr-foo",);
assert_eq!(*s, "/nix/store/xpcvxsx5sw4rbq666blz6sxqlmsqphmr-foo",);
}
_ => panic!("unexpected value type: {:?}", value),
}
@ -159,7 +159,7 @@ mod tests {
match value {
tvix_eval::Value::String(s) => {
assert_eq!(s, expected_path);
assert_eq!(*s, expected_path);
}
_ => panic!("unexpected value type: {:?}", value),
}
@ -282,7 +282,7 @@ mod tests {
match value {
tvix_eval::Value::String(s) => {
assert_eq!(s, expected_drvpath);
assert_eq!(*s, expected_drvpath);
}
_ => panic!("unexpected value type: {:?}", value),
@ -311,7 +311,7 @@ mod tests {
match value {
tvix_eval::Value::String(s) => {
assert_eq!(s, expected_path);
assert_eq!(*s, expected_path);
}
_ => panic!("unexpected value type: {:?}", value),
}