Improve performance

.eslintignore

@@ -1,2 +1,3 @@
 **/*.*js
+**/*.jsx
 **/*.d.ts

.prettierrc.json

@@ -4,5 +4,14 @@
   "trailingComma": "all",
   "plugins": ["@trivago/prettier-plugin-sort-imports"],
   "importOrder": ["<THIRD_PARTY_MODULES>", "^@/(.*)$", "^\\.(.*)$"],
-  "importOrderSeparation": true
+  "importOrderSeparation": true,
+  "overrides": [
+    {
+      "files": ["tests/**/performance/Callout.*"],
+      "options": {
+        "printWidth": 80,
+        "singleQuote": false
+      }
+    }
+  ]
 }

package.json

@@ -27,8 +27,7 @@
     "dev": "vite build --watch --minify=false",
     "build": "vite build",
     "lint": "eslint src",
-    "test": "jest --ci --passWithNoTests",
-    "test:watch": "jest --watch"
+    "test": "pnpm run build && jest --ci --passWithNoTests"
   },
   "dependencies": {
     "diff": "5.1.0"
@@ -37,6 +36,7 @@
     "@trivago/prettier-plugin-sort-imports": "4.1.1",
     "@types/diff": "5.0.3",
     "@types/jest": "29.5.2",
+    "@types/node": "20.2.5",
     "@typescript-eslint/eslint-plugin": "5.54.0",
     "@typescript-eslint/parser": "5.54.0",
     "eslint": "8.35.0",
@@ -47,6 +47,8 @@
     "eslint-import-resolver-typescript": "3.5.3",
     "eslint-plugin-import": "2.27.5",
     "jest": "29.5.0",
+    "ppm-012": "npm:prettier-plugin-merge@0.1.2",
+    "ppm-020": "npm:prettier-plugin-merge@0.2.0",
     "prettier": "~2.8.4",
     "prettier-plugin-brace-style": "0.2.1",
     "prettier-plugin-classnames": "0.1.1",

src/printers.ts

@@ -24,26 +24,20 @@ function sequentialFormattingAndTryMerging(
     rangeEnd: Infinity,
   };
 
-  let sequentiallyFormattedText = originalText;
-  let sequentiallyMergedText: string | undefined;
+  let sequentiallyMergedText = originalText;
 
   /**
    * Changes that may be removed during the sequential formatting process.
    */
   const patches: SubstitutePatch[] = [];
 
   plugins.forEach((plugin) => {
-    sequentiallyFormattedText = format(sequentiallyFormattedText, {
+    const temporaryFormattedText = format(sequentiallyMergedText, {
       ...sequentialFormattingOptions,
       plugins: [plugin],
     });
 
-    const temporaryFormattedText = format(sequentiallyMergedText ?? originalText, {
-      ...sequentialFormattingOptions,
-      plugins: [plugin],
-    });
-
-    if (sequentiallyMergedText === undefined) {
+    if (sequentiallyMergedText === originalText) {
       sequentiallyMergedText = temporaryFormattedText;
       return;
     }
@@ -106,7 +100,7 @@ function sequentialFormattingAndTryMerging(
     );
   });
 
-  return sequentiallyMergedText ?? sequentiallyFormattedText;
+  return sequentiallyMergedText;
 }
 
 function createPrinter(): Printer {
@@ -125,6 +119,7 @@ function createPrinter(): Printer {
       throw new Error('A default plugin with the detected parser does not exist.');
     }
 
+    const parserName = options.parser as string;
     const node = path.getValue();
 
     if (node?.comments) {
@@ -149,9 +144,13 @@ function createPrinter(): Printer {
       );
     }
 
+    const parserImplementedPlugins = plugins
+      .slice(0, pluginIndex)
+      .filter((plugin) => plugin.parsers?.[parserName]);
+
     return sequentialFormattingAndTryMerging(
       options,
-      plugins.slice(0, pluginIndex),
+      parserImplementedPlugins,
       defaultPluginCandidate,
     );
   }

tests/babel/performance/Callout.jsx

@@ -0,0 +1,11 @@
+// @ts-nocheck
+export default function Callout({ children }) {
+  return (
+    <div
+      className="rounded-xl border border-zinc-400/30 bg-gray-100/50 px-4 py-4
+        dark:border-neutral-500/30 dark:bg-neutral-900/50"
+    >
+      {children}
+    </div>
+  );
+}