fix(es/plugin): Revert swc-project#9696 (swc-project#9717)

.changeset/clever-jobs-hug.md

@@ -0,0 +1,5 @@
+---
+swc_common: major
+---
+
+fix(es/plugin): Revert #9696

crates/swc_common/src/lib.rs

@@ -51,13 +51,14 @@ pub use self::{
     source_map::{FileLines, FileLoader, FilePathMapping, SourceMap, SpanSnippetError},
     syntax_pos::LineCol,
 };
+#[doc(hidden)]
+pub mod private;
 
 /// A trait for ast nodes.
 pub trait AstNode: Debug + PartialEq + Clone + Spanned {
     const TYPE: &'static str;
 }
 
-pub mod cache;
 pub mod collections;
 pub mod comments;
 mod eq;
@@ -67,8 +68,6 @@ pub mod iter;
 pub mod pass;
 pub mod plugin;
 mod pos;
-#[doc(hidden)]
-pub mod private;
 mod rustc_data_structures;
 pub mod serializer;
 pub mod source_map;

crates/swc_common/src/source_map.rs

@@ -316,11 +316,10 @@ impl SourceMap {
         let line_info = self.lookup_line_with(fm, pos);
         match line_info {
             Ok(SourceFileAndLine { sf: f, line: a }) => {
-                let analysis = f.analyze();
                 let chpos = self.bytepos_to_file_charpos_with(&f, pos);
 
                 let line = a + 1; // Line numbers start at 1
-                let linebpos = f.analyze().lines[a];
+                let linebpos = f.lines[a];
                 assert!(
                     pos >= linebpos,
                     "{}: bpos = {:?}; linebpos = {:?};",
@@ -333,17 +332,16 @@ impl SourceMap {
                 let col = chpos - linechpos;
 
                 let col_display = {
-                    let start_width_idx = analysis
+                    let start_width_idx = f
                         .non_narrow_chars
                         .binary_search_by_key(&linebpos, |x| x.pos())
                         .unwrap_or_else(|x| x);
-                    let end_width_idx = analysis
+                    let end_width_idx = f
                         .non_narrow_chars
                         .binary_search_by_key(&pos, |x| x.pos())
                         .unwrap_or_else(|x| x);
                     let special_chars = end_width_idx - start_width_idx;
-                    let non_narrow: usize = analysis.non_narrow_chars
-                        [start_width_idx..end_width_idx]
+                    let non_narrow: usize = f.non_narrow_chars[start_width_idx..end_width_idx]
                         .iter()
                         .map(|x| x.width())
                         .sum();
@@ -369,15 +367,14 @@ impl SourceMap {
                 })
             }
             Err(f) => {
-                let analysis = f.analyze();
                 let chpos = self.bytepos_to_file_charpos(pos)?;
 
                 let col_display = {
-                    let end_width_idx = analysis
+                    let end_width_idx = f
                         .non_narrow_chars
                         .binary_search_by_key(&pos, |x| x.pos())
                         .unwrap_or_else(|x| x);
-                    let non_narrow: usize = analysis.non_narrow_chars[0..end_width_idx]
+                    let non_narrow: usize = f.non_narrow_chars[0..end_width_idx]
                         .iter()
                         .map(|x| x.width())
                         .sum();
@@ -1031,11 +1028,11 @@ impl SourceMap {
     ) -> u32 {
         let mut total_extra_bytes = state.total_extra_bytes;
         let mut index = state.mbc_index;
-        let analysis = file.analyze();
+
         if bpos >= state.pos {
-            let range = index..analysis.multibyte_chars.len();
+            let range = index..file.multibyte_chars.len();
             for i in range {
-                let mbc = &analysis.multibyte_chars[i];
+                let mbc = &file.multibyte_chars[i];
                 debug!("{}-byte char at {:?}", mbc.bytes, mbc.pos);
                 if mbc.pos >= bpos {
                     break;
@@ -1055,7 +1052,7 @@ impl SourceMap {
         } else {
             let range = 0..index;
             for i in range.rev() {
-                let mbc = &analysis.multibyte_chars[i];
+                let mbc = &file.multibyte_chars[i];
                 debug!("{}-byte char at {:?}", mbc.bytes, mbc.pos);
                 if mbc.pos < bpos {
                     break;
@@ -1325,8 +1322,7 @@ impl SourceMap {
                 None => continue,
             };
 
-            let analysis = f.analyze();
-            let linebpos = analysis.lines[line as usize];
+            let linebpos = f.lines[line as usize];
             debug_assert!(
                 pos >= linebpos,
                 "{}: bpos = {:?}; linebpos = {:?};",

crates/swc_common/src/syntax_pos.rs

@@ -16,7 +16,7 @@ use url::Url;
 
 use self::hygiene::MarkData;
 pub use self::hygiene::{Mark, SyntaxContext};
-use crate::{cache::CacheCell, rustc_data_structures::stable_hasher::StableHasher, sync::Lrc};
+use crate::{rustc_data_structures::stable_hasher::StableHasher, sync::Lrc};
 
 mod analyze_source_file;
 pub mod hygiene;
@@ -827,26 +827,14 @@ pub struct SourceFile {
     pub start_pos: BytePos,
     /// The end position of this source in the `SourceMap`
     pub end_pos: BytePos,
-    /// A hash of the filename, used for speeding up the incr. comp. hashing.
-    pub name_hash: u128,
-
-    lazy: CacheCell<SourceFileAnalysis>,
-}
-
-#[cfg_attr(
-    any(feature = "rkyv-impl"),
-    derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)
-)]
-#[cfg_attr(feature = "rkyv-impl", archive(check_bytes))]
-#[cfg_attr(feature = "rkyv-impl", archive_attr(repr(C)))]
-#[derive(Clone)]
-pub struct SourceFileAnalysis {
     /// Locations of lines beginnings in the source code
     pub lines: Vec<BytePos>,
     /// Locations of multi-byte characters in the source code
     pub multibyte_chars: Vec<MultiByteChar>,
     /// Width of characters that are not narrow in the source code
     pub non_narrow_chars: Vec<NonNarrowChar>,
+    /// A hash of the filename, used for speeding up the incr. comp. hashing.
+    pub name_hash: u128,
 }
 
 impl fmt::Debug for SourceFile {
@@ -900,6 +888,9 @@ impl SourceFile {
         };
         let end_pos = start_pos.to_usize() + src.len();
 
+        let (lines, multibyte_chars, non_narrow_chars) =
+            analyze_source_file::analyze_source_file(&src[..], start_pos);
+
         SourceFile {
             name,
             name_was_remapped,
@@ -909,16 +900,17 @@ impl SourceFile {
             src_hash,
             start_pos,
             end_pos: SmallPos::from_usize(end_pos),
+            lines,
+            multibyte_chars,
+            non_narrow_chars,
             name_hash,
-            lazy: CacheCell::new(),
         }
     }
 
     /// Return the BytePos of the beginning of the current line.
     pub fn line_begin_pos(&self, pos: BytePos) -> BytePos {
         let line_index = self.lookup_line(pos).unwrap();
-        let analysis = self.analyze();
-        analysis.lines[line_index]
+        self.lines[line_index]
     }
 
     /// Get a line from the list of pre-computed line-beginnings.
@@ -936,8 +928,7 @@ impl SourceFile {
         }
 
         let begin = {
-            let analysis = self.analyze();
-            let line = analysis.lines.get(line_number)?;
+            let line = self.lines.get(line_number)?;
             let begin: BytePos = *line - self.start_pos;
             begin.to_usize()
         };
@@ -954,22 +945,20 @@ impl SourceFile {
     }
 
     pub fn count_lines(&self) -> usize {
-        let analysis = self.analyze();
-        analysis.lines.len()
+        self.lines.len()
     }
 
     /// Find the line containing the given position. The return value is the
     /// index into the `lines` array of this SourceFile, not the 1-based line
     /// number. If the `source_file` is empty or the position is located before
     /// the first line, `None` is returned.
     pub fn lookup_line(&self, pos: BytePos) -> Option<usize> {
-        let analysis = self.analyze();
-        if analysis.lines.is_empty() {
+        if self.lines.is_empty() {
             return None;
         }
 
-        let line_index = lookup_line(&analysis.lines, pos);
-        assert!(line_index < analysis.lines.len() as isize);
+        let line_index = lookup_line(&self.lines[..], pos);
+        assert!(line_index < self.lines.len() as isize);
         if line_index >= 0 {
             Some(line_index as usize)
         } else {
@@ -982,32 +971,18 @@ impl SourceFile {
             return (self.start_pos, self.end_pos);
         }
 
-        let analysis = self.analyze();
-
-        assert!(line_index < analysis.lines.len());
-        if line_index == (analysis.lines.len() - 1) {
-            (analysis.lines[line_index], self.end_pos)
+        assert!(line_index < self.lines.len());
+        if line_index == (self.lines.len() - 1) {
+            (self.lines[line_index], self.end_pos)
         } else {
-            (analysis.lines[line_index], analysis.lines[line_index + 1])
+            (self.lines[line_index], self.lines[line_index + 1])
         }
     }
 
     #[inline]
     pub fn contains(&self, byte_pos: BytePos) -> bool {
         byte_pos >= self.start_pos && byte_pos <= self.end_pos
     }
-
-    pub fn analyze(&self) -> &SourceFileAnalysis {
-        self.lazy.get_or_init(|| {
-            let (lines, multibyte_chars, non_narrow_chars) =
-                analyze_source_file::analyze_source_file(&self.src[..], self.start_pos);
-            SourceFileAnalysis {
-                lines,
-                multibyte_chars,
-                non_narrow_chars,
-            }
-        })
-    }
 }
 
 /// Remove utf-8 BOM if any.

crates/swc_error_reporters/src/lib.rs

@@ -131,7 +131,7 @@ impl SourceCode for MietteSourceCode<'_> {
         }
 
         let loc = self.0.lookup_char_pos(span.lo());
-        let line_count = loc.file.analyze().lines.len();
+        let line_count = loc.file.lines.len();
 
         let name = if self.1.skip_filename {
             None

crates/swc_estree_compat/src/swcify/ctx.rs

@@ -12,7 +12,7 @@ pub struct Context {
 
 impl Context {
     fn locate_line_col(&self, loc: LineCol) -> BytePos {
-        if let Some(&line_start) = self.fm.analyze().lines.get(loc.line) {
+        if let Some(&line_start) = self.fm.lines.get(loc.line) {
             line_start + BytePos(loc.column as _)
         } else {
             BytePos(0)