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Make tt generic over the span data

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This commit is contained in:
Lukas Wirth 2023-01-31 11:49:49 +01:00
parent d805c74c51
commit 41a46a78f2
48 changed files with 806 additions and 569 deletions
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7
crates/mbe/src/expander.rs
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@ -8,7 +8,7 @@ mod transcriber;
use rustc_hash::FxHashMap;
use syntax::SmolStr;
use crate::{parser::MetaVarKind, ExpandError, ExpandResult};
use crate::{parser::MetaVarKind, tt, ExpandError, ExpandResult};
pub(crate) fn expand_rules(
rules: &[crate::Rule],
@ -45,7 +45,10 @@ pub(crate) fn expand_rules(
transcriber::transcribe(&rule.rhs, &match_.bindings);
ExpandResult { value, err: match_.err.or(transcribe_err) }
} else {
ExpandResult::only_err(ExpandError::NoMatchingRule)
ExpandResult::with_err(
tt::Subtree { delimiter: tt::Delimiter::unspecified(), token_trees: vec![] },
ExpandError::NoMatchingRule,
)
}
}