From 8c639a87bdbd08b10d4eb84d00f25ba7bcd56be0 Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Sat, 29 May 2021 20:32:57 +0200
Subject: Thread proc-macro types through the HIR

---
 crates/hir_def/src/nameres/collector.rs  |  9 +++++++--
 crates/hir_def/src/nameres/proc_macro.rs | 10 ++++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

(limited to 'crates/hir_def')

diff --git a/crates/hir_def/src/nameres/collector.rs b/crates/hir_def/src/nameres/collector.rs
index 4296c6304..d9d6c91a8 100644
--- a/crates/hir_def/src/nameres/collector.rs
+++ b/crates/hir_def/src/nameres/collector.rs
@@ -477,16 +477,21 @@ impl DefCollector<'_> {
     /// going out of sync with what the build system sees (since we resolve using VFS state, but
     /// Cargo builds only on-disk files). We could and probably should add diagnostics for that.
     fn export_proc_macro(&mut self, def: ProcMacroDef, ast_id: AstId<ast::Fn>) {
+        let kind = def.kind.to_basedb_kind();
         self.exports_proc_macros = true;
         let macro_def = match self.proc_macros.iter().find(|(n, _)| n == &def.name) {
             Some((_, expander)) => MacroDefId {
                 krate: self.def_map.krate,
-                kind: MacroDefKind::ProcMacro(*expander, ast_id),
+                kind: MacroDefKind::ProcMacro(*expander, kind, ast_id),
                 local_inner: false,
             },
             None => MacroDefId {
                 krate: self.def_map.krate,
-                kind: MacroDefKind::ProcMacro(ProcMacroExpander::dummy(self.def_map.krate), ast_id),
+                kind: MacroDefKind::ProcMacro(
+                    ProcMacroExpander::dummy(self.def_map.krate),
+                    kind,
+                    ast_id,
+                ),
                 local_inner: false,
             },
         };
diff --git a/crates/hir_def/src/nameres/proc_macro.rs b/crates/hir_def/src/nameres/proc_macro.rs
index 156598f19..3f095d623 100644
--- a/crates/hir_def/src/nameres/proc_macro.rs
+++ b/crates/hir_def/src/nameres/proc_macro.rs
@@ -18,6 +18,16 @@ pub(super) enum ProcMacroKind {
     Attr,
 }
 
+impl ProcMacroKind {
+    pub(super) fn to_basedb_kind(&self) -> base_db::ProcMacroKind {
+        match self {
+            ProcMacroKind::CustomDerive { .. } => base_db::ProcMacroKind::CustomDerive,
+            ProcMacroKind::FnLike => base_db::ProcMacroKind::FuncLike,
+            ProcMacroKind::Attr => base_db::ProcMacroKind::Attr,
+        }
+    }
+}
+
 impl Attrs {
     #[rustfmt::skip]
     pub(super) fn parse_proc_macro_decl(&self, func_name: &Name) -> Option<ProcMacroDef> {
-- 
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