Rename CustomDerive to ProcMacro

It handles fn-like macros too, and will handle attribute macros in the
future

crates/hir/src/code_model.rs

@@ -908,12 +908,12 @@ pub fn name(self, db: &dyn HirDatabase) -> Option<Name> {
 
     /// Indicate it is a proc-macro
     pub fn is_proc_macro(&self) -> bool {
-        matches!(self.id.kind, MacroDefKind::CustomDerive(_))
+        matches!(self.id.kind, MacroDefKind::ProcMacro(_))
     }
 
     /// Indicate it is a derive macro
     pub fn is_derive_macro(&self) -> bool {
-        matches!(self.id.kind, MacroDefKind::CustomDerive(_) | MacroDefKind::BuiltInDerive(_))
+        matches!(self.id.kind, MacroDefKind::ProcMacro(_) | MacroDefKind::BuiltInDerive(_))
     }
 }
 

crates/hir_def/src/nameres/collector.rs

@@ -273,7 +273,7 @@ fn collect_proc_macro(&mut self) {
             let macro_id = MacroDefId {
                 ast_id: None,
                 krate: Some(krate),
-                kind: MacroDefKind::CustomDerive(expander),
+                kind: MacroDefKind::ProcMacro(expander),
                 local_inner: false,
             };
 

crates/hir_expand/src/db.rs

@@ -143,7 +143,7 @@ pub(crate) fn macro_def(
             Some(Arc::new((TokenExpander::BuiltinDerive(expander), mbe::TokenMap::default())))
         }
         MacroDefKind::BuiltInEager(_) => None,
-        MacroDefKind::CustomDerive(expander) => {
+        MacroDefKind::ProcMacro(expander) => {
             Some(Arc::new((TokenExpander::ProcMacro(expander), mbe::TokenMap::default())))
         }
     }
@@ -249,7 +249,7 @@ pub(crate) fn expand_proc_macro(
     };
 
     let expander = match loc.def.kind {
-        MacroDefKind::CustomDerive(expander) => expander,
+        MacroDefKind::ProcMacro(expander) => expander,
         _ => unreachable!(),
     };
 

crates/hir_expand/src/eager.rs

@@ -129,7 +129,7 @@ fn eager_macro_recur(
             MacroDefKind::Declarative
             | MacroDefKind::BuiltIn(_)
             | MacroDefKind::BuiltInDerive(_)
-            | MacroDefKind::CustomDerive(_) => {
+            | MacroDefKind::ProcMacro(_) => {
                 let expanded = lazy_expand(db, &def, curr.with_value(child.clone()), krate)?;
                 // replace macro inside
                 eager_macro_recur(db, expanded, krate, macro_resolver)?

crates/hir_expand/src/hygiene.rs

@@ -33,7 +33,7 @@ pub fn new(db: &dyn AstDatabase, file_id: HirFileId) -> Hygiene {
                         MacroDefKind::BuiltIn(_) => (None, false),
                         MacroDefKind::BuiltInDerive(_) => (None, false),
                         MacroDefKind::BuiltInEager(_) => (None, false),
-                        MacroDefKind::CustomDerive(_) => (None, false),
+                        MacroDefKind::ProcMacro(_) => (None, false),
                     }
                 }
                 MacroCallId::EagerMacro(_id) => (None, false),

crates/hir_expand/src/lib.rs

@@ -246,7 +246,7 @@ pub enum MacroDefKind {
     // FIXME: maybe just Builtin and rename BuiltinFnLikeExpander to BuiltinExpander
     BuiltInDerive(BuiltinDeriveExpander),
     BuiltInEager(EagerExpander),
-    CustomDerive(ProcMacroExpander),
+    ProcMacro(ProcMacroExpander),
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]