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GeezerVison is showing github.com — src: avoid string copy in BuiltinLoader::GetBuiltinIds · nodejs/node@db4370f

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  • src
    • node_builtins.cc
    • node_builtins.h
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‎src/node_builtins.cc‎

Copy file name to clipboardExpand all lines: src/node_builtins.cc
+7-7Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -82,8 +82,8 @@ Local<String> BuiltinLoader::GetConfigString(Isolate* isolate) {
8282
return config_.ToStringChecked(isolate);
8383
}
8484

85-
std::vector<std::string> BuiltinLoader::GetBuiltinIds() const {
86-
std::vector<std::string> ids;
85+
std::vector<std::string_view> BuiltinLoader::GetBuiltinIds() const {
86+
std::vector<std::string_view> ids;
8787
auto source = source_.read();
8888
ids.reserve(source->size());
8989
for (auto const& x : *source) {
@@ -95,7 +95,7 @@ std::vector<std::string> BuiltinLoader::GetBuiltinIds() const {
9595
BuiltinLoader::BuiltinCategories BuiltinLoader::GetBuiltinCategories() const {
9696
BuiltinCategories builtin_categories;
9797

98-
std::vector<std::string> prefixes = {
98+
const std::vector<std::string_view> prefixes = {
9999
#if !HAVE_OPENSSL
100100
"internal/crypto/",
101101
"internal/debugger/",
@@ -475,19 +475,19 @@ MaybeLocal<Value> BuiltinLoader::CompileAndCall(Local<Context> context,
475475
}
476476

477477
bool BuiltinLoader::CompileAllBuiltins(Local<Context> context) {
478-
std::vector<std::string> ids = GetBuiltinIds();
478+
std::vector<std::string_view> ids = GetBuiltinIds();
479479
bool all_succeeded = true;
480480
std::string v8_tools_prefix = "internal/deps/v8/tools/";
481481
for (const auto& id : ids) {
482482
if (id.compare(0, v8_tools_prefix.size(), v8_tools_prefix) == 0) {
483483
continue;
484484
}
485485
v8::TryCatch bootstrapCatch(context->GetIsolate());
486-
USE(LookupAndCompile(context, id.c_str(), nullptr));
486+
USE(LookupAndCompile(context, id.data(), nullptr));
487487
if (bootstrapCatch.HasCaught()) {
488488
per_process::Debug(DebugCategory::CODE_CACHE,
489489
"Failed to compile code cache for %s\n",
490-
id.c_str());
490+
id.data());
491491
all_succeeded = false;
492492
PrintCaughtException(context->GetIsolate(), context, bootstrapCatch);
493493
}
@@ -607,7 +607,7 @@ void BuiltinLoader::BuiltinIdsGetter(Local<Name> property,
607607
Environment* env = Environment::GetCurrent(info);
608608
Isolate* isolate = env->isolate();
609609

610-
std::vector<std::string> ids = env->builtin_loader()->GetBuiltinIds();
610+
std::vector<std::string_view> ids = env->builtin_loader()->GetBuiltinIds();
611611
info.GetReturnValue().Set(
612612
ToV8Value(isolate->GetCurrentContext(), ids).ToLocalChecked());
613613
}
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‎src/node_builtins.h‎

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+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -126,7 +126,7 @@ class NODE_EXTERN_PRIVATE BuiltinLoader {
126126
void LoadJavaScriptSource(); // Loads data into source_
127127
UnionBytes GetConfig(); // Return data for config.gypi
128128

129-
std::vector<std::string> GetBuiltinIds() const;
129+
std::vector<std::string_view> GetBuiltinIds() const;
130130

131131
struct BuiltinCategories {
132132
std::set<std::string> can_be_required;

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