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refactor for readablity, keep semantics identical

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This commit is contained in:
Bahex 2024-12-12 05:04:47 +03:00
parent baf86dfb0e
commit 6eee83b38d
1 changed files with 30 additions and 30 deletions
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60
crates/nu-engine/src/compile/operator.rs
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@ -335,43 +335,43 @@ pub(crate) fn compile_load_env(
path: &[PathMember],
out_reg: RegId,
) -> Result<(), CompileError> {
if path.is_empty() {
builder.push(
match path {
[] => builder.push(
Instruction::LoadVariable {
dst: out_reg,
var_id: ENV_VARIABLE_ID,
}
.into_spanned(span),
)?;
} else {
let (key, optional) = match &path[0] {
PathMember::String { val, optional, .. } => (builder.data(val)?, *optional),
PathMember::Int { span, .. } => {
return Err(CompileError::AccessEnvByInt { span: *span })
}
};
let tail = &path[1..];
if optional {
builder.push(Instruction::LoadEnvOpt { dst: out_reg, key }.into_spanned(span))?;
} else {
builder.push(Instruction::LoadEnv { dst: out_reg, key }.into_spanned(span))?;
)?,
[PathMember::Int { span, .. }, ..] => {
return Err(CompileError::AccessEnvByInt { span: *span })
}
[PathMember::String {
val: key, optional, ..
}, tail @ ..] => {
let key = builder.data(key)?;
if !tail.is_empty() {
let path = builder.literal(
Literal::CellPath(Box::new(CellPath {
members: tail.to_vec(),
}))
.into_spanned(span),
)?;
builder.push(
Instruction::FollowCellPath {
src_dst: out_reg,
path,
}
.into_spanned(span),
)?;
builder.push(if *optional {
Instruction::LoadEnvOpt { dst: out_reg, key }.into_spanned(span)
} else {
Instruction::LoadEnv { dst: out_reg, key }.into_spanned(span)
})?;
if !tail.is_empty() {
let path = builder.literal(
Literal::CellPath(Box::new(CellPath {
members: tail.to_vec(),
}))
.into_spanned(span),
)?;
builder.push(
Instruction::FollowCellPath {
src_dst: out_reg,
path,
}
.into_spanned(span),
)?;
}
}
}
Ok(())