Add a script to dump an AST using docker.

src/types/util.rs

@@ -2,7 +2,7 @@ use std::borrow::Cow;
 
 /// Removes all whitespace from a string if any line breaks are present.
 ///
-/// Example: "foo bar" => "foo bar" but "foo \n bar" => "foobar".
+/// Example: "foo  bar" => "foo  bar" but "foo \n bar" => "foobar".
 pub(crate) fn remove_whitespace_if_line_break(input: &str) -> Cow<'_, str> {
     let mut state = RemoveWhitespaceIfLineBreakState::Normal;
     for (offset, c) in input.char_indices() {
@@ -78,7 +78,7 @@ enum RemoveLineBreakState {
 
 /// Removes all whitespace from a string if any line breaks are present.
 ///
-/// Example: "foo bar" => "foo bar" but "foo \n bar" => "foobar".
+/// Example: "foo  bar" => "foo  bar" but "foo \n bar" => "foo bar".
 pub(crate) fn coalesce_whitespace_if_line_break(input: &str) -> Cow<'_, str> {
     let mut state = CoalesceWhitespaceIfLineBreakState::Normal;
     for (offset, c) in input.char_indices() {
@@ -515,4 +515,25 @@ mod tests {
         assert!(matches!(output, Cow::Borrowed(_)));
         Ok(())
     }
+
+    #[test]
+    fn test_coalesce_whitespace_if_line_break() -> Result<(), Box<dyn std::error::Error>> {
+        assert_eq!(coalesce_whitespace_if_line_break("foo  bar"), "foo  bar");
+        assert_eq!(coalesce_whitespace_if_line_break("foo \n bar"), "foo bar");
+        Ok(())
+    }
+
+    #[test]
+    fn test_remove_whitespace_if_line_break() -> Result<(), Box<dyn std::error::Error>> {
+        assert_eq!(remove_whitespace_if_line_break("foo  bar"), "foo  bar");
+        assert_eq!(remove_whitespace_if_line_break("foo \n bar"), "foobar");
+        Ok(())
+    }
+
+    #[test]
+    fn test_remove_line_break() -> Result<(), Box<dyn std::error::Error>> {
+        assert_eq!(remove_line_break("foo  bar"), "foo  bar");
+        assert_eq!(remove_line_break("foo \n bar"), "foo  bar");
+        Ok(())
+    }
 }