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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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24
crates/hir-expand/src/proc_macro.rs
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@ -3,7 +3,7 @@
use base_db::{CrateId, ProcMacroExpansionError, ProcMacroId, ProcMacroKind};
use stdx::never;
use crate::{db::AstDatabase, ExpandError, ExpandResult};
use crate::{db::AstDatabase, tt, ExpandError, ExpandResult};
#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]
pub struct ProcMacroExpander {
@ -39,7 +39,10 @@ impl ProcMacroExpander {
Ok(proc_macros) => proc_macros,
Err(_) => {
never!("Non-dummy expander even though there are no proc macros");
return ExpandResult::only_err(ExpandError::Other("Internal error".into()));
return ExpandResult::with_err(
tt::Subtree::empty(),
ExpandError::Other("Internal error".into()),
);
}
};
let proc_macro = match proc_macros.get(id.0 as usize) {
@ -50,7 +53,10 @@ impl ProcMacroExpander {
proc_macros.len(),
id.0
);
return ExpandResult::only_err(ExpandError::Other("Internal error".into()));
return ExpandResult::with_err(
tt::Subtree::empty(),
ExpandError::Other("Internal error".into()),
);
}
};
@ -69,13 +75,17 @@ impl ProcMacroExpander {
}
}
ProcMacroExpansionError::System(text)
| ProcMacroExpansionError::Panic(text) => {
ExpandResult::only_err(ExpandError::Other(text.into()))
}
| ProcMacroExpansionError::Panic(text) => ExpandResult::with_err(
tt::Subtree::empty(),
ExpandError::Other(text.into()),
),
},
}
}
None => ExpandResult::only_err(ExpandError::UnresolvedProcMacro(self.krate)),
None => ExpandResult::with_err(
tt::Subtree::empty(),
ExpandError::UnresolvedProcMacro(self.krate),
),
}
}
}