fix: improved support for cjs and cts modules (#26558)

* cts support
* better cjs/cts type checking
* deno compile cjs/cts support
* More efficient detect cjs (going towards stabilization)
* Determination of whether .js, .ts, .jsx, or .tsx is cjs or esm is only
done after loading
* Support `import x = require(...);`

Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

4 files changed, 7 insertions, 31 deletions

diff --git a/cli/util/extract.rs b/cli/util/extract.rs
index 873b7e7f2..f577cbefe 100644
--- a/cli/util/extract.rs
+++ b/cli/util/extract.rs
@@ -64,7 +64,7 @@ fn extract_inner(
   }) {
     Ok(parsed) => {
       let mut c = ExportCollector::default();
-      c.visit_program(parsed.program_ref());
+      c.visit_program(parsed.program().as_ref());
       c
     }
     Err(_) => ExportCollector::default(),
@@ -570,14 +570,14 @@ fn generate_pseudo_file(
   })?;
 
   let top_level_atoms = swc_utils::collect_decls_with_ctxt::<Atom, _>(
-    parsed.program_ref(),
+    &parsed.program_ref(),
     parsed.top_level_context(),
   );
 
   let transformed =
     parsed
       .program_ref()
-      .clone()
+      .to_owned()
       .fold_with(&mut as_folder(Transform {
         specifier: &file.specifier,
         base_file_specifier,
@@ -1416,7 +1416,7 @@ console.log(Foo);
       })
       .unwrap();
 
-      collector.visit_program(parsed.program_ref());
+      parsed.program_ref().visit_with(&mut collector);
       collector
     }
 
diff --git a/cli/util/logger.rs b/cli/util/logger.rs
index cdc89411f..d93753dfd 100644
--- a/cli/util/logger.rs
+++ b/cli/util/logger.rs
@@ -65,6 +65,8 @@ pub fn init(maybe_level: Option<log::Level>) {
   .filter_module("swc_ecma_parser", log::LevelFilter::Error)
   // Suppress span lifecycle logs since they are too verbose
   .filter_module("tracing::span", log::LevelFilter::Off)
+  // for deno_compile, this is too verbose
+  .filter_module("editpe", log::LevelFilter::Error)
   .format(|buf, record| {
     let mut target = record.target().to_string();
     if let Some(line_no) = record.line() {
diff --git a/cli/util/path.rs b/cli/util/path.rs
index e4ae6e7cb..58bed664f 100644
--- a/cli/util/path.rs
+++ b/cli/util/path.rs
@@ -42,21 +42,6 @@ pub fn get_extension(file_path: &Path) -> Option<String> {
     .map(|e| e.to_lowercase());
 }
 
-pub fn specifier_has_extension(
-  specifier: &ModuleSpecifier,
-  searching_ext: &str,
-) -> bool {
-  let Some((_, ext)) = specifier.path().rsplit_once('.') else {
-    return false;
-  };
-  let searching_ext = searching_ext.strip_prefix('.').unwrap_or(searching_ext);
-  debug_assert!(!searching_ext.contains('.')); // exts like .d.ts are not implemented here
-  if ext.len() != searching_ext.len() {
-    return false;
-  }
-  ext.eq_ignore_ascii_case(searching_ext)
-}
-
 pub fn get_atomic_dir_path(file_path: &Path) -> PathBuf {
   let rand = gen_rand_path_component();
   let new_file_name = format!(
@@ -351,18 +336,6 @@ mod test {
   }
 
   #[test]
-  fn test_specifier_has_extension() {
-    fn get(specifier: &str, ext: &str) -> bool {
-      specifier_has_extension(&ModuleSpecifier::parse(specifier).unwrap(), ext)
-    }
-
-    assert!(get("file:///a/b/c.ts", "ts"));
-    assert!(get("file:///a/b/c.ts", ".ts"));
-    assert!(!get("file:///a/b/c.ts", ".cts"));
-    assert!(get("file:///a/b/c.CtS", ".cts"));
-  }
-
-  #[test]
   fn test_to_percent_decoded_str() {
     let str = to_percent_decoded_str("%F0%9F%A6%95");
     assert_eq!(str, "🦕");
diff --git a/cli/util/text_encoding.rs b/cli/util/text_encoding.rs
index df72cc2be..8524e63eb 100644
--- a/cli/util/text_encoding.rs
+++ b/cli/util/text_encoding.rs
@@ -97,6 +97,7 @@ fn find_source_map_range(code: &[u8]) -> Option<Range<usize>> {
 }
 
 /// Converts an `Arc<str>` to an `Arc<[u8]>`.
+#[allow(dead_code)]
 pub fn arc_str_to_bytes(arc_str: Arc<str>) -> Arc<[u8]> {
   let raw = Arc::into_raw(arc_str);
   // SAFETY: This is safe because they have the same memory layout.