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46 lines
1.9 KiB
Diff
46 lines
1.9 KiB
Diff
--- a/src/shared/discriminant_assigner.rs
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+++ b/src/shared/discriminant_assigner.rs
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@@ -26,20 +26,20 @@
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let discriminant_expr = &discriminant.1;
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let variant_name = &variant.ident;
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- let Expr::Lit(ExprLit { lit: Lit::Int(int), .. }) = discriminant_expr else {
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+ if let Expr::Lit(ExprLit { lit: Lit::Int(int), .. }) = discriminant_expr {
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+ let discriminant_value: u128 = int.base10_parse().unwrap_or_else(unreachable);
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+ if discriminant_value > self.max_value() {
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+ abort!(variant, "Value of variant exceeds the given number of bits")
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+ }
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+
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+ Some(discriminant_value)
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+ } else {
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abort!(
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discriminant_expr,
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"variant `{}` is not a number", variant_name;
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help = "only literal integers currently supported"
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)
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- };
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-
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- let discriminant_value: u128 = int.base10_parse().unwrap_or_else(unreachable);
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- if discriminant_value > self.max_value() {
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- abort!(variant, "Value of variant exceeds the given number of bits")
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}
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-
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- Some(discriminant_value)
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}
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fn assign(&mut self, variant: &Variant) -> u128 {
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--- a/src/shared/fallback.rs
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+++ b/src/shared/fallback.rs
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@@ -22,8 +22,9 @@
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}
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Unnamed(fields) => {
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let variant_fields = fields.unnamed.iter();
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- let Ok(fallback_value) = variant_fields.exactly_one() else {
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- abort!(variant, "fallback variant must have exactly one field"; help = "use only one field or change to a unit variant")
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+ let fallback_value = match variant_fields.exactly_one() {
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+ Ok(ok) => ok,
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+ _ => abort!(variant, "fallback variant must have exactly one field"; help = "use only one field or change to a unit variant")
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};
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if !is_last_variant {
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