src: merge NativeModuleEnv into NativeModuleLoader

Now that we include the code cache into the embedded snapshot,
there is no point in splitting an Environment-independent
NativeModuleLoader out of NativeModuleEnv. Merge the two
classes for simplicity.

PR-URL: #43824
Refs: #31074
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>

node.gyp

@@ -516,7 +516,6 @@
         'src/node_messaging.cc',
         'src/node_metadata.cc',
         'src/node_native_module.cc',
-        'src/node_native_module_env.cc',
         'src/node_options.cc',
         'src/node_os.cc',
         'src/node_perf.cc',
@@ -621,7 +620,6 @@
         'src/node_metadata.h',
         'src/node_mutex.h',
         'src/node_native_module.h',
-        'src/node_native_module_env.h',
         'src/node_object_wrap.h',
         'src/node_options.h',
         'src/node_options-inl.h',

src/api/environment.cc

@@ -2,7 +2,7 @@
 #include "node_context_data.h"
 #include "node_errors.h"
 #include "node_internals.h"
-#include "node_native_module_env.h"
+#include "node_native_module.h"
 #include "node_options-inl.h"
 #include "node_platform.h"
 #include "node_v8_platform-inl.h"
@@ -442,9 +442,8 @@ MaybeLocal<Value> LoadEnvironment(
 
         // TODO(addaleax): Avoid having a global table for all scripts.
         std::string name = "embedder_main_" + std::to_string(env->thread_id());
-        native_module::NativeModuleEnv::Add(
-            name.c_str(),
-            UnionBytes(**main_utf16, main_utf16->length()));
+        native_module::NativeModuleLoader::Add(
+            name.c_str(), UnionBytes(**main_utf16, main_utf16->length()));
         env->set_main_utf16(std::move(main_utf16));
         std::vector<Local<String>> params = {
             env->process_string(),
@@ -698,7 +697,7 @@ Maybe<bool> InitializePrimordials(Local<Context> context) {
         global_string, exports_string, primordials_string};
     Local<Value> arguments[] = {context->Global(), exports, primordials};
     MaybeLocal<Function> maybe_fn =
-        native_module::NativeModuleEnv::LookupAndCompile(
+        native_module::NativeModuleLoader::LookupAndCompile(
             context, *module, &parameters, nullptr);
     Local<Function> fn;
     if (!maybe_fn.ToLocal(&fn)) {

src/node.cc

@@ -32,7 +32,7 @@
 #include "node_internals.h"
 #include "node_main_instance.h"
 #include "node_metadata.h"
-#include "node_native_module_env.h"
+#include "node_native_module.h"
 #include "node_options-inl.h"
 #include "node_perf.h"
 #include "node_process-inl.h"
@@ -125,7 +125,7 @@
 
 namespace node {
 
-using native_module::NativeModuleEnv;
+using native_module::NativeModuleLoader;
 
 using v8::EscapableHandleScope;
 using v8::Function;
@@ -178,7 +178,7 @@ MaybeLocal<Value> ExecuteBootstrapper(Environment* env,
                                       std::vector<Local<Value>>* arguments) {
   EscapableHandleScope scope(env->isolate());
   MaybeLocal<Function> maybe_fn =
-      NativeModuleEnv::LookupAndCompile(env->context(), id, parameters, env);
+      NativeModuleLoader::LookupAndCompile(env->context(), id, parameters, env);
 
   Local<Function> fn;
   if (!maybe_fn.ToLocal(&fn)) {
@@ -1196,8 +1196,7 @@ int Start(int argc, char** argv) {
     uv_loop_configure(uv_default_loop(), UV_METRICS_IDLE_TIME);
 
     if (snapshot_data != nullptr) {
-      native_module::NativeModuleEnv::RefreshCodeCache(
-          snapshot_data->code_cache);
+      NativeModuleLoader::RefreshCodeCache(snapshot_data->code_cache);
     }
     NodeMainInstance main_instance(snapshot_data,
                                    uv_default_loop(),

src/node_binding.cc

@@ -3,7 +3,7 @@
 #include "env-inl.h"
 #include "node_errors.h"
 #include "node_external_reference.h"
-#include "node_native_module_env.h"
+#include "node_native_module.h"
 #include "util.h"
 
 #include <string>
@@ -598,13 +598,14 @@ void GetInternalBinding(const FunctionCallbackInfo<Value>& args) {
         exports->SetPrototype(env->context(), Null(env->isolate())).FromJust());
     DefineConstants(env->isolate(), exports);
   } else if (!strcmp(*module_v, "natives")) {
-    exports = native_module::NativeModuleEnv::GetSourceObject(env->context());
+    exports =
+        native_module::NativeModuleLoader::GetSourceObject(env->context());
     // Legacy feature: process.binding('natives').config contains stringified
     // config.gypi
     CHECK(exports
               ->Set(env->context(),
                     env->config_string(),
-                    native_module::NativeModuleEnv::GetConfigString(
+                    native_module::NativeModuleLoader::GetConfigString(
                         env->isolate()))
               .FromJust());
   } else {

src/node_config.cc

@@ -2,7 +2,7 @@
 #include "memory_tracker.h"
 #include "node.h"
 #include "node_i18n.h"
-#include "node_native_module_env.h"
+#include "node_native_module.h"
 #include "node_options.h"
 #include "util-inl.h"
 

src/node_main_instance.cc

@@ -6,7 +6,7 @@
 #include "debug_utils-inl.h"
 #include "node_external_reference.h"
 #include "node_internals.h"
-#include "node_native_module_env.h"
+#include "node_native_module.h"
 #include "node_options-inl.h"
 #include "node_snapshot_builder.h"
 #include "node_snapshotable.h"