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Fix a desugaring bug

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This commit is contained in:
Shunsuke Shibayama 2022-12-04 11:44:13 +09:00
parent 48f91f969b
commit e9d0642b29
2 changed files with 18 additions and 1 deletions
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8
compiler/erg_parser/ast.rs
View file

@ -1979,7 +1979,13 @@ impl fmt::Display for TypeSpec {
}
write!(f, "}}")
}
Self::Enum(elems) => write!(f, "{{{elems}}}"),
Self::Enum(elems) => {
write!(f, "{{")?;
for elem in elems.pos_args() {
write!(f, "{}, ", elem.expr)?;
}
write!(f, "}}")
}
Self::Interval { op, lhs, rhs } => write!(f, "{lhs}{}{rhs}", op.inspect()),
Self::Subr(s) => write!(f, "{s}"),
Self::TypeApp { spec, args } => write!(f, "{spec}{args}"),

11
compiler/erg_parser/desugar.rs
View file

@ -992,6 +992,17 @@ impl Desugarer {
insertion_idx += 1;
insertion_idx
}
ParamPattern::Lit(l) => {
let lit = l.clone();
sig.pat = ParamPattern::Discard(Token::new(
TokenKind::UBar,
"_",
l.ln_begin().unwrap(),
l.col_begin().unwrap(),
));
sig.t_spec = Some(TypeSpecWithOp::new(COLON, TypeSpec::enum_t_spec(vec![lit])));
insertion_idx
}
_ => insertion_idx,
}
}