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Less maybe_whole_expr #107550

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Less maybe_whole_expr #107550

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814ea59
Remove a use of `maybe_whole_expr`.
nnethercote Feb 1, 2023
cee1963
Refactor `handle_missing_lit`.
nnethercote Feb 1, 2023
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30 changes: 15 additions & 15 deletions compiler/rustc_parse/src/parser/expr.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1832,20 +1832,14 @@ impl<'a> Parser<'a> {
&mut self,
mk_lit_char: impl FnOnce(Symbol, Span) -> L,
) -> PResult<'a, L> {
if let token::Interpolated(inner) = &self.token.kind {
let expr = match inner.as_ref() {
token::NtExpr(expr) => Some(expr),
token::NtLiteral(expr) => Some(expr),
_ => None,
};
if let Some(expr) = expr {
if matches!(expr.kind, ExprKind::Err) {
let mut err = InvalidInterpolatedExpression { span: self.token.span }
.into_diagnostic(&self.sess.span_diagnostic);
err.downgrade_to_delayed_bug();
return Err(err);
}
}
if let token::Interpolated(nt) = &self.token.kind
&& let token::NtExpr(e) | token::NtLiteral(e) = &**nt
&& matches!(e.kind, ExprKind::Err)
{
let mut err = InvalidInterpolatedExpression { span: self.token.span }
.into_diagnostic(&self.sess.span_diagnostic);
err.downgrade_to_delayed_bug();
return Err(err);
}
let token = self.token.clone();
let err = |self_: &Self| {
Expand Down Expand Up @@ -1966,7 +1960,13 @@ impl<'a> Parser<'a> {
/// Matches `'-' lit | lit` (cf. `ast_validation::AstValidator::check_expr_within_pat`).
/// Keep this in sync with `Token::can_begin_literal_maybe_minus`.
pub fn parse_literal_maybe_minus(&mut self) -> PResult<'a, P<Expr>> {
maybe_whole_expr!(self);
if let token::Interpolated(nt) = &self.token.kind
&& let token::NtExpr(e) | token::NtLiteral(e) = &**nt
{
let e = e.clone();
self.bump();
return Ok(e);
}

let lo = self.token.span;
let minus_present = self.eat(&token::BinOp(token::Minus));
Expand Down