From 917f1eb71e0229445a5e75e8ee7fe1ba3243399b Mon Sep 17 00:00:00 2001
From: Stephan Schreiber <septh@users.noreply.github.com>
Date: Mon, 16 Sep 2024 20:06:34 +0200
Subject: [PATCH] feat(esbuild): Enable esbuild's per-file tree shaking

Set `treeShaking: true` and `ignoreAnnotation: false` in `transformOptions`.
---
 .vscode/settings.json          | 5 ++++-
 source/index.ts                | 2 --
 source/transformers/esbuild.ts | 4 ++--
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/.vscode/settings.json b/.vscode/settings.json
index a29b249..feec51e 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -9,5 +9,8 @@
       "overrides": "esbuild"
     }
   ],
-  "typescript.tsdk": "node_modules\\typescript\\lib"
+  "typescript.tsdk": "node_modules\\typescript\\lib",
+  "conventionalCommits.scopes": [
+    "esbuild"
+  ]
 }
diff --git a/source/index.ts b/source/index.ts
index b40fc30..2794e00 100644
--- a/source/index.ts
+++ b/source/index.ts
@@ -53,7 +53,6 @@ export function fastTypescript(
             // Resolve the tsconfig option.
             if (typeof tsConfig === 'function')
                 tsConfig = await tsConfig()
-
             if (tsConfig === true)
                 tsConfig = './tsconfig.json'
             else if (!tsConfig)
@@ -78,7 +77,6 @@ export function fastTypescript(
             let tsConfigBasePath: string,
                 tsConfigParsed: ts.ParsedCommandLine,
                 tsDiagnostics: ts.Diagnostic[] = []
-
             if (typeof tsConfig === 'string') {
                 tsConfig = path.resolve(tsConfig)
                 tsConfigBasePath = path.dirname(tsConfig)
diff --git a/source/transformers/esbuild.ts b/source/transformers/esbuild.ts
index 4c5e2f4..2167006 100644
--- a/source/transformers/esbuild.ts
+++ b/source/transformers/esbuild.ts
@@ -65,8 +65,8 @@ export default {
             jsxImportSource: compilerOptions.jsxImportSource,
             jsxSideEffects: true,
             minify: false,
-            treeShaking: false,
-            ignoreAnnotations: true,
+            treeShaking: true,
+            ignoreAnnotations: false,
             logLevel: 'silent',
 
             tsconfigRaw: {