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don't add guarded record fields into scope

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This commit is contained in:
Folkert 2020-04-09 01:06:26 +02:00
parent 85e2cf4465
commit fd7ca5bcc9
8 changed files with 196 additions and 79 deletions
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19
compiler/can/src/scope.rs
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@ -57,10 +57,13 @@ impl Scope {
pub fn lookup(&mut self, ident: &Ident, region: Region) -> Result<Symbol, RuntimeError> {
match self.idents.get(ident) {
Some((symbol, _)) => Ok(*symbol),
None => Err(RuntimeError::LookupNotInScope(Located {
region,
value: ident.clone().into(),
})),
None => Err(RuntimeError::LookupNotInScope(
Located {
region,
value: ident.clone().into(),
},
self.idents.keys().map(|v| v.as_ref().into()).collect(),
)),
}
}
@ -107,6 +110,14 @@ impl Scope {
}
}
/// Ignore an identifier.
///
/// Used for record guards like { x: Just _ }
pub fn ignore(&mut self, ident: Ident, all_ident_ids: &mut IdentIds) -> Symbol {
let ident_id = all_ident_ids.add(ident.into());
Symbol::new(self.home, ident_id)
}
/// Import a Symbol from another module into this module's top-level scope.
///
/// Returns Err if this would shadow an existing ident, including the