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Use Var wrapper only for Pointer formatting

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David Tolnay 2024-11-10 13:11:08 -08:00
parent 6a6132d79b
commit 1d040f358a
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3 changed files with 9 additions and 57 deletions
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8
impl/src/fmt.rs
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@ -3,7 +3,7 @@ use crate::attr::{Display, Trait};
use crate::scan_expr::scan_expr;
use crate::unraw::{IdentUnraw, MemberUnraw};
use proc_macro2::{Delimiter, TokenStream, TokenTree};
use quote::{format_ident, quote, quote_spanned};
use quote::{format_ident, quote, quote_spanned, ToTokens as _};
use std::collections::{BTreeSet, HashMap};
use std::iter;
use syn::ext::IdentExt;
@ -114,6 +114,8 @@ impl Display<'_> {
}
let formatvar_prefix = if bonus_display {
"__display"
} else if bound == Trait::Pointer {
"__pointer"
} else {
"__field"
};
@ -137,8 +139,10 @@ impl Display<'_> {
};
let wrapped_binding_value = if bonus_display {
quote_spanned!(span=> #binding_value.as_display())
} else {
} else if bound == Trait::Pointer {
quote!(::thiserror::__private::Var(#binding_value))
} else {
binding_value.into_token_stream()
};
has_bonus_display |= bonus_display;
bindings.push((formatvar.to_local(), wrapped_binding_value));