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Make get_env_var return a reference to a Value (#13987)

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# Description
Title says it all, changes `EngineState::get_env_var` to return a
`Option<&'a Value>` instead of an owned `Option<Value>`. This avoids
some unnecessary clones.

I also made a similar change to the `PluginExecutionContext` trait.
This commit is contained in:
Ian Manske
2024-10-02 04:05:48 -07:00
committed by GitHub
parent f03ba6793e
commit 157494e803
17 changed files with 74 additions and 51 deletions
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17
crates/nu-cmd-base/src/hook.rs
View File

@ -18,17 +18,12 @@ pub fn eval_env_change_hook(
match hook {
Value::Record { val, .. } => {
for (env_name, hook_value) in &*val {
let before = engine_state
.previous_env_vars
.get(env_name)
.cloned()
.unwrap_or_default();
let after = stack
.get_env_var(engine_state, env_name)
.unwrap_or_default();
let before = engine_state.previous_env_vars.get(env_name);
let after = stack.get_env_var(engine_state, env_name);
if before != after {
let before = before.cloned().unwrap_or_default();
let after = after.cloned().unwrap_or_default();
eval_hook(
engine_state,
stack,
@ -39,7 +34,7 @@ pub fn eval_env_change_hook(
)?;
Arc::make_mut(&mut engine_state.previous_env_vars)
.insert(env_name.to_string(), after);
.insert(env_name.clone(), after);
}
}
}