Patch facebook/metro#1130 to profile module init (#1796)

2023-11-02 18:48:07 +00:00
parent 237bce391b
commit 0e8723c3bb
2 changed files with 85 additions and 0 deletions
@@ -0,0 +1,41 @@
+diff --git a/node_modules/metro-transform-worker/src/index.js b/node_modules/metro-transform-worker/src/index.js
+index 27d4cb3..fd71f47 100644
+--- a/node_modules/metro-transform-worker/src/index.js
+++ b/node_modules/metro-transform-worker/src/index.js
+@@ -190,6 +190,10 @@ async function transformJS(file, { config, options, projectRoot }) {
+   let dependencyMapName = "";
+   let dependencies;
+   let wrappedAst;
+  const minify =
+    options.minify &&
+    options.unstable_transformProfile !== "hermes-canary" &&
+    options.unstable_transformProfile !== "hermes-stable";
+ 
+   // If the module to transform is a script (meaning that is not part of the
+   // dependency graph and it code will just be prepended to the bundle modules),
+@@ -229,19 +233,20 @@ async function transformJS(file, { config, options, projectRoot }) {
+     if (config.unstable_disableModuleWrapping === true) {
+       wrappedAst = ast;
+     } else {
+      let moduleFactoryName;
+      if (options.dev && !minify) {
+        moduleFactoryName = file.filename;
+      }
+       ({ ast: wrappedAst } = JsFileWrapping.wrapModule(
+         ast,
+         importDefault,
+         importAll,
+         dependencyMapName,
+-        config.globalPrefix
+        config.globalPrefix,
+        moduleFactoryName
+       ));
+     }
+   }
+-  const minify =
+-    options.minify &&
+-    options.unstable_transformProfile !== "hermes-canary" &&
+-    options.unstable_transformProfile !== "hermes-stable";
+   const reserved = [];
+   if (config.unstable_dependencyMapReservedName != null) {
+     reserved.push(config.unstable_dependencyMapReservedName);