Parallelize build enums more

Reviewed By: lynnshaoyu

Differential Revision: D70814981

fbshipit-source-id: 364e9c60554b550a7fa6a414c0a33ed514e4f6ae

Author: tyao1

compiler/crates/schema/src/in_memory.rs

@@ -365,6 +365,10 @@ impl InMemorySchema {
         self.enums.iter()
     }
 
+    pub fn get_enums_par_iter(&self) -> impl ParallelIterator<Item = &Enum> {
+        self.enums.par_iter()
+    }
+
     pub fn get_objects(&self) -> impl Iterator<Item = &Object> {
         self.objects.iter()
     }

compiler/crates/schema/src/schema.rs

@@ -389,6 +389,13 @@ impl SDLSchema {
         }
     }
 
+    pub fn get_enums_par_iter(&self) -> impl ParallelIterator<Item = &Enum> {
+        match self {
+            SDLSchema::FlatBuffer(_schema) => todo!(),
+            SDLSchema::InMemory(schema) => schema.get_enums_par_iter(),
+        }
+    }
+
     pub fn get_objects(&self) -> impl Iterator<Item = &Object> {
         match self {
             SDLSchema::FlatBuffer(_schema) => todo!(),