33 lines
814 B
Rust
33 lines
814 B
Rust
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//! Proc Macro Expander stub
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use crate::{db::AstDatabase, LazyMacroId, MacroCallKind, MacroCallLoc};
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use ra_db::CrateId;
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#[derive(Debug, Clone, Copy, Eq, PartialEq, Hash)]
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pub struct ProcMacroExpander {
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krate: CrateId,
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}
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impl ProcMacroExpander {
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pub fn new(krate: CrateId) -> ProcMacroExpander {
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ProcMacroExpander { krate }
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}
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pub fn expand(
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&self,
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db: &dyn AstDatabase,
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id: LazyMacroId,
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_tt: &tt::Subtree,
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) -> Result<tt::Subtree, mbe::ExpandError> {
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let loc: MacroCallLoc = db.lookup_intern_macro(id);
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let name = match loc.kind {
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MacroCallKind::FnLike(_) => return Err(mbe::ExpandError::ConversionError),
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MacroCallKind::Attr(_, name) => name,
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};
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dbg!(name);
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unimplemented!()
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}
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}
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