feat(transform): replace object spread with Proxy in getTagProcessor (#…

…57) * feat(transform): replace object spread with Proxy in getTagProcessor * fix(transform): revert babel.compact
Anber · Feb 9, 2024 · 3a494ef · 3a494ef
1 parent c6c5801
commit 3a494ef
Show file tree

Hide file tree

Showing 2 changed files with 18 additions and 2 deletions.
diff --git a/.changeset/stale-stingrays-judge.md b/.changeset/stale-stingrays-judge.md
@@ -0,0 +1,5 @@
+---
+'@wyw-in-js/transform': patch
+---
+
+Found out that an object spread can be extremely slow. getTagProcessor now works 10 times faster.
diff --git a/packages/transform/src/utils/getTagProcessor.ts b/packages/transform/src/utils/getTagProcessor.ts
@@ -315,8 +315,7 @@ function getBuilderForIdentifier(
     });
   };
 
-  const astService = {
-    ...t,
+  const importHelpers = {
     addDefaultImport: (importedSource: string, nameHint?: string) =>
       addDefault(path, importedSource, { nameHint }),
     addNamedImport: (
@@ -326,6 +325,18 @@ function getBuilderForIdentifier(
     ) => addNamed(path, name, importedSource, { nameHint }),
   };
 
+  type AstService = typeof t & typeof importHelpers;
+
+  const astService = new Proxy<AstService>(t as AstService, {
+    get(target, prop, receiver) {
+      if (prop in importHelpers) {
+        return importHelpers[prop as keyof typeof importHelpers];
+      }
+
+      return Reflect.get(target, prop, receiver);
+    },
+  });
+
   return (...args: BuilderArgs) =>
     new Processor(
       params,