errors: replace .lines with explicit .split newline (#4483)

1 files changed, 3 insertions, 1 deletions

diff --git a/cli/compilers/ts.rs b/cli/compilers/ts.rs
index 4f822dc2c..a74e4a096 100644
--- a/cli/compilers/ts.rs
+++ b/cli/compilers/ts.rs
@@ -553,7 +553,9 @@ impl SourceMapGetter for TsCompiler {
       .try_resolve_and_get_source_file(script_name)
       .and_then(|out| {
         str::from_utf8(&out.source_code).ok().and_then(|v| {
-          let lines: Vec<&str> = v.lines().collect();
+          // Do NOT use .lines(): it skips the terminating empty line.
+          // (due to internally using .split_terminator() instead of .split())
+          let lines: Vec<&str> = v.split('\n').collect();
           assert!(lines.len() > line);
           Some(lines[line].to_string())
         })