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Export `SourcemapVisualizer` from codegen, it will be used oxc and rolldown sourcemap test, so it support multiply source print, it will using sourcemap `sourcesContent` as original source.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| use rustc_hash::FxHashMap; | ||
| use sourcemap::SourceMap; | ||
|
|
||
| pub struct SourcemapVisualizer<'a> { | ||
| output: &'a str, | ||
| sourcemap: &'a SourceMap, | ||
| } | ||
|
|
||
| impl<'a> SourcemapVisualizer<'a> { | ||
| pub fn new(output: &'a str, sourcemap: &'a SourceMap) -> Self { | ||
| Self { output, sourcemap } | ||
| } | ||
|
|
||
| #[allow(clippy::cast_possible_truncation)] | ||
| pub fn into_visualizer_text(self) -> String { | ||
| let mut source_log_map = FxHashMap::default(); | ||
| let source_contents_lines_map: FxHashMap<String, Option<Vec<Vec<u16>>>> = self | ||
| .sourcemap | ||
| .sources() | ||
| .enumerate() | ||
| .map(|(source_id, source)| { | ||
| ( | ||
| source.to_string(), | ||
| self.sourcemap | ||
| .get_source_view(source_id as u32) | ||
| .map(|source_view| Self::generate_line_utf16_tables(source_view.source())), | ||
| ) | ||
| }) | ||
| .collect(); | ||
| let output_lines = Self::generate_line_utf16_tables(self.output); | ||
| let mut s = String::new(); | ||
|
|
||
| self.sourcemap.tokens().reduce(|pre_token, token| { | ||
| if let Some(source) = pre_token.get_source() { | ||
| if let Some(Some(source_contents_lines)) = source_contents_lines_map.get(source) { | ||
| // Print source | ||
| source_log_map.entry(source).or_insert_with(|| { | ||
| s.push('-'); | ||
| s.push(' '); | ||
| s.push_str(source); | ||
| s.push('\n'); | ||
| true | ||
| }); | ||
|
|
||
| // Print token | ||
| s.push_str(&format!( | ||
| "({}:{}-{}:{}) {:?}", | ||
| pre_token.get_src_line(), | ||
| pre_token.get_src_col(), | ||
| token.get_src_line(), | ||
| token.get_src_col(), | ||
| Self::str_slice_by_token( | ||
| source_contents_lines, | ||
| (pre_token.get_src_line(), pre_token.get_src_col()), | ||
| (token.get_src_line(), token.get_src_col()) | ||
| ) | ||
| )); | ||
|
|
||
| s.push_str(" --> "); | ||
|
|
||
| s.push_str(&format!( | ||
| "({}:{}-{}:{}) {:?}", | ||
| pre_token.get_dst_line(), | ||
| pre_token.get_dst_col(), | ||
| token.get_dst_line(), | ||
| token.get_dst_col(), | ||
| Self::str_slice_by_token( | ||
| &output_lines, | ||
| (pre_token.get_dst_line(), pre_token.get_dst_col(),), | ||
| (token.get_dst_line(), token.get_dst_col(),) | ||
| ) | ||
| )); | ||
| s.push('\n'); | ||
| } | ||
| } | ||
|
|
||
| token | ||
| }); | ||
|
|
||
| s | ||
| } | ||
|
|
||
| fn generate_line_utf16_tables(content: &str) -> Vec<Vec<u16>> { | ||
| let mut tables = vec![]; | ||
| let mut line_byte_offset = 0; | ||
| for (i, ch) in content.char_indices() { | ||
| match ch { | ||
| '\r' | '\n' | '\u{2028}' | '\u{2029}' => { | ||
| // Handle Windows-specific "\r\n" newlines | ||
| if ch == '\r' && content.chars().nth(i + 1) == Some('\n') { | ||
| continue; | ||
| } | ||
| tables.push(content[line_byte_offset..i].encode_utf16().collect::<Vec<_>>()); | ||
| line_byte_offset = i; | ||
| } | ||
| _ => {} | ||
| } | ||
| } | ||
| tables.push(content[line_byte_offset..].encode_utf16().collect::<Vec<_>>()); | ||
| tables | ||
| } | ||
|
|
||
| fn str_slice_by_token(buff: &[Vec<u16>], start: (u32, u32), end: (u32, u32)) -> String { | ||
| if start.0 == end.0 { | ||
| return String::from_utf16(&buff[start.0 as usize][start.1 as usize..end.1 as usize]) | ||
| .unwrap(); | ||
| } | ||
|
|
||
| let mut s = String::new(); | ||
|
|
||
| for i in start.0..end.0 { | ||
| let slice = &buff[i as usize]; | ||
| if i == start.0 { | ||
| s.push_str(&String::from_utf16(&slice[start.1 as usize..]).unwrap()); | ||
| } else if i == end.0 { | ||
| s.push_str(&String::from_utf16(&slice[..end.1 as usize]).unwrap()); | ||
| } else { | ||
| s.push_str(&String::from_utf16(slice).unwrap()); | ||
| } | ||
| } | ||
|
|
||
| s | ||
| } | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod test { | ||
| use super::*; | ||
|
|
||
| #[test] | ||
| fn should_work() { | ||
| let sourcemap = SourceMap::from_slice(r#"{ | ||
| "version":3, | ||
| "sources":["shared.js","index.js"], | ||
| "sourcesContent":["const a = 'shared.js'\n\nexport { a }","import { a as a2 } from './shared'\nconst a = 'index.js'\nconsole.log(a, a2)\n"], | ||
| "names":["a","a$1"], | ||
| "mappings":";;AAAA,MAAMA,IAAI;;;ACCV,MAAMC,MAAI;AACV,QAAQ,IAAIA,KAAGD,EAAG" | ||
| }"#.as_bytes()).unwrap(); | ||
| let output = "\n// shared.js\nconst a = 'shared.js';\n\n// index.js\nconst a$1 = 'index.js';\nconsole.log(a$1, a);\n"; | ||
| let visualizer = SourcemapVisualizer::new(output, &sourcemap); | ||
| let visualizer_text = visualizer.into_visualizer_text(); | ||
| assert_eq!( | ||
| visualizer_text, | ||
| r#"- shared.js | ||
| (0:0-0:6) "const " --> (2:0-2:6) "\nconst" | ||
| (0:6-0:10) "a = " --> (2:6-2:10) " a =" | ||
| (0:10-1:0) "'shared.js'" --> (2:10-5:0) " 'shared.js';\n\n// index.js" | ||
| - index.js | ||
| (1:0-1:6) "\nconst" --> (5:0-5:6) "\nconst" | ||
| (1:6-1:10) " a =" --> (5:6-5:12) " a$1 =" | ||
| (1:10-2:0) " 'index.js'" --> (5:12-6:0) " 'index.js';" | ||
| (2:0-2:8) "\nconsole" --> (6:0-6:8) "\nconsole" | ||
| (2:8-2:12) ".log" --> (6:8-6:12) ".log" | ||
| (2:12-2:15) "(a," --> (6:12-6:17) "(a$1," | ||
| (2:15-2:18) " a2" --> (6:17-6:19) " a" | ||
| "# | ||
| ); | ||
| } | ||
| } |
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