refactor(transformer): move ESTarget to its own file

crates/oxc_transformer/src/options/env.rs

@@ -1,6 +1,3 @@
-use std::str::FromStr;
-
-use cow_utils::CowUtils;
 use oxc_diagnostics::Error;
 use serde::Deserialize;
 
@@ -17,46 +14,7 @@ use crate::{
     EngineTargets,
 };
 
-use super::{babel::BabelEnvOptions, ESFeature};
-
-#[derive(Debug, Default, Clone, Copy, Eq, PartialEq, Ord, PartialOrd)]
-pub enum ESTarget {
-    ES5,
-    ES2015,
-    ES2016,
-    ES2017,
-    ES2018,
-    ES2019,
-    ES2020,
-    ES2021,
-    ES2022,
-    ES2023,
-    ES2024,
-    #[default]
-    ESNext,
-}
-
-impl FromStr for ESTarget {
-    type Err = String;
-
-    fn from_str(s: &str) -> Result<Self, Self::Err> {
-        match s.cow_to_lowercase().as_ref() {
-            "es5" => Ok(Self::ES5),
-            "es2015" => Ok(Self::ES2015),
-            "es2016" => Ok(Self::ES2016),
-            "es2017" => Ok(Self::ES2017),
-            "es2018" => Ok(Self::ES2018),
-            "es2019" => Ok(Self::ES2019),
-            "es2020" => Ok(Self::ES2020),
-            "es2021" => Ok(Self::ES2021),
-            "es2022" => Ok(Self::ES2022),
-            "es2023" => Ok(Self::ES2023),
-            "es2024" => Ok(Self::ES2024),
-            "esnext" => Ok(Self::ESNext),
-            _ => Err(format!("Invalid target \"{s}\".")),
-        }
-    }
-}
+use super::{babel::BabelEnvOptions, ESFeature, ESTarget};
 
 #[derive(Debug, Default, Clone, Deserialize)]
 #[serde(try_from = "BabelEnvOptions")]
@@ -134,9 +92,13 @@ impl EnvOptions {
         }
     }
 
+    /// Initialize from a [browserslist] query.
+    ///
     /// # Errors
     ///
     /// * When the query failed to parse.
+    ///
+    /// [browserslist]: <https://github.com/browserslist/browserslist>
     pub fn from_browserslist_query(query: &str) -> Result<Self, Error> {
         Self::try_from(BabelEnvOptions {
             targets: EngineTargets::try_from_query(query)?,

crates/oxc_transformer/src/options/es_target.rs

@@ -0,0 +1,42 @@
+use std::str::FromStr;
+
+use cow_utils::CowUtils;
+
+#[derive(Debug, Default, Clone, Copy, Eq, PartialEq, Ord, PartialOrd)]
+pub enum ESTarget {
+    ES5,
+    ES2015,
+    ES2016,
+    ES2017,
+    ES2018,
+    ES2019,
+    ES2020,
+    ES2021,
+    ES2022,
+    ES2023,
+    ES2024,
+    #[default]
+    ESNext,
+}
+
+impl FromStr for ESTarget {
+    type Err = String;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        match s.cow_to_lowercase().as_ref() {
+            "es5" => Ok(Self::ES5),
+            "es2015" => Ok(Self::ES2015),
+            "es2016" => Ok(Self::ES2016),
+            "es2017" => Ok(Self::ES2017),
+            "es2018" => Ok(Self::ES2018),
+            "es2019" => Ok(Self::ES2019),
+            "es2020" => Ok(Self::ES2020),
+            "es2021" => Ok(Self::ES2021),
+            "es2022" => Ok(Self::ES2022),
+            "es2023" => Ok(Self::ES2023),
+            "es2024" => Ok(Self::ES2024),
+            "esnext" => Ok(Self::ESNext),
+            _ => Err(format!("Invalid target \"{s}\".")),
+        }
+    }
+}

crates/oxc_transformer/src/options/mod.rs

@@ -4,6 +4,7 @@ mod browserslist_query;
 mod engine_targets;
 mod env;
 mod es_features;
+mod es_target;
 
 use std::path::PathBuf;
 
@@ -29,8 +30,9 @@ use crate::{
 pub use self::{
     browserslist_query::BrowserslistQuery,
     engine_targets::{Engine, EngineTargets},
-    env::{ESTarget, EnvOptions},
+    env::EnvOptions,
     es_features::ESFeature,
+    es_target::ESTarget,
 };
 
 use self::babel::BabelOptions;