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n-api: add fast paths for integer getters #14393

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n-api: add fast paths for integer getters #14393

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19 changes: 19 additions & 0 deletions src/node_api.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -1909,6 +1909,12 @@ napi_status napi_get_value_int32(napi_env env,
CHECK_ARG(env, result);

v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);

if (val->IsInt32()) {
*result = val.As<v8::Int32>()->Value();
return napi_clear_last_error(env);
}

RETURN_STATUS_IF_FALSE(env, val->IsNumber(), napi_number_expected);

v8::Isolate* isolate = env->isolate;
Expand All @@ -1928,6 +1934,12 @@ napi_status napi_get_value_uint32(napi_env env,
CHECK_ARG(env, result);

v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);

if (val->IsUint32()) {
*result = val.As<v8::Uint32>()->Value();
return napi_clear_last_error(env);
}

RETURN_STATUS_IF_FALSE(env, val->IsNumber(), napi_number_expected);

v8::Isolate* isolate = env->isolate;
Expand All @@ -1947,6 +1959,13 @@ napi_status napi_get_value_int64(napi_env env,
CHECK_ARG(env, result);

v8::Local<v8::Value> val = v8impl::V8LocalValueFromJsValue(value);

// This is still a fast path very likely to be taken.
if (val->IsInt32()) {
*result = val.As<v8::Int32>()->Value();
return napi_clear_last_error(env);
}

RETURN_STATUS_IF_FALSE(env, val->IsNumber(), napi_number_expected);

// v8::Value::IntegerValue() converts NaN to INT64_MIN, inconsistent with
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