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revset: simplify RevsetAliasesMap getters to not construct id

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I originally attempted to embed function parameters in RevsetAliasId. That's
probably why these getters return id. Let's move id construction to callers
since the id only serves as a recursion blocker.
This commit is contained in:
Yuya Nishihara 2023-09-24 12:19:39 +09:00
parent acf84f5cd8
commit 9697970f71
1 changed files with 9 additions and 15 deletions
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24
lib/src/revset.rs
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@ -783,22 +783,14 @@ impl RevsetAliasesMap {
Ok(())
}
fn get_symbol(&self, name: &str) -> Option<(RevsetAliasId, &str)> {
self.symbol_aliases
.get_key_value(name)
.map(|(name, defn)| (RevsetAliasId::Symbol(name), defn.as_ref()))
fn get_symbol(&self, name: &str) -> Option<&str> {
self.symbol_aliases.get(name).map(|defn| defn.as_ref())
}
fn get_function(&self, name: &str) -> Option<(RevsetAliasId, &[String], &str)> {
fn get_function(&self, name: &str) -> Option<(&[String], &str)> {
self.function_aliases
.get_key_value(name)
.map(|(name, (params, defn))| {
(
RevsetAliasId::Function(name),
params.as_ref(),
defn.as_ref(),
)
})
.get(name)
.map(|(params, defn)| (params.as_ref(), defn.as_ref()))
}
}
@ -1057,7 +1049,8 @@ fn parse_symbol_rule(
let name = first.as_str();
if let Some(expr) = state.locals.get(name) {
Ok(expr.clone())
} else if let Some((id, defn)) = state.aliases_map.get_symbol(name) {
} else if let Some(defn) = state.aliases_map.get_symbol(name) {
let id = RevsetAliasId::Symbol(name);
let locals = HashMap::new(); // Don't spill out the current scope
state.with_alias_expanding(id, &locals, first.as_span(), |state| {
parse_program(defn, state)
@ -1104,7 +1097,7 @@ fn parse_function_expression(
primary_span: pest::Span<'_>,
) -> Result<Rc<RevsetExpression>, RevsetParseError> {
let name = name_pair.as_str();
if let Some((id, params, defn)) = state.aliases_map.get_function(name) {
if let Some((params, defn)) = state.aliases_map.get_function(name) {
// Resolve arguments in the current scope, and pass them in to the alias
// expansion scope.
let (required, optional) =
@ -1114,6 +1107,7 @@ fn parse_function_expression(
.into_iter()
.map(|arg| parse_expression_rule(arg.into_inner(), state))
.try_collect()?;
let id = RevsetAliasId::Function(name);
let locals = params.iter().map(|s| s.as_str()).zip(args).collect();
state.with_alias_expanding(id, &locals, primary_span, |state| {
parse_program(defn, state)