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esm: graduate top-level-await to stable #42875

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Apr 28, 2022
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esm: graduate top-level-await to stable #42875

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a55c3f5
esm: graduate top-level-await to stable
aduh95 Apr 26, 2022
b04af65
fixup! esm: graduate top-level-await to stable
aduh95 Apr 26, 2022
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2 changes: 0 additions & 2 deletions doc/api/esm.md
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Expand Up @@ -566,8 +566,6 @@ would provide the exports interface for the instantiation of `module.wasm`.
added: v14.8.0
-->

> Stability: 1 - Experimental

The `await` keyword may be used in the top level body of an ECMAScript module.

Assuming an `a.mjs` with
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4 changes: 1 addition & 3 deletions src/module_wrap.cc
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Expand Up @@ -432,9 +432,7 @@ void ModuleWrap::Evaluate(const FunctionCallbackInfo<Value>& args) {
// Otherwise, `result` is the last evaluated value of the module,
// which could be a promise, which would result in it being incorrectly
// unwrapped when the higher level code awaits the evaluation.
if (env->isolate_data()->options()->experimental_top_level_await) {
args.GetReturnValue().Set(result.ToLocalChecked());
}
args.GetReturnValue().Set(result.ToLocalChecked());
}

void ModuleWrap::GetNamespace(const FunctionCallbackInfo<Value>& args) {
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10 changes: 2 additions & 8 deletions src/node_options.cc
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Expand Up @@ -704,14 +704,8 @@ PerIsolateOptionsParser::PerIsolateOptionsParser(
kAllowedInEnvironment);
Implies("--report-signal", "--report-on-signal");

AddOption("--experimental-top-level-await",
"",
&PerIsolateOptions::experimental_top_level_await,
kAllowedInEnvironment);
AddOption("--harmony-top-level-await", "", V8Option{});
Implies("--experimental-top-level-await", "--harmony-top-level-await");
Implies("--harmony-top-level-await", "--experimental-top-level-await");
ImpliesNot("--no-harmony-top-level-await", "--experimental-top-level-await");
AddOption("--experimental-top-level-await", "",
NoOp{}, kAllowedInEnvironment);

Insert(eop, &PerIsolateOptions::get_per_env_options);
}
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1 change: 0 additions & 1 deletion src/node_options.h
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Expand Up @@ -206,7 +206,6 @@ class PerIsolateOptions : public Options {
bool node_snapshot = true;
bool report_uncaught_exception = false;
bool report_on_signal = false;
bool experimental_top_level_await = true;
std::string report_signal = "SIGUSR2";
inline EnvironmentOptions* get_per_env_options();
void CheckOptions(std::vector<std::string>* errors) override;
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