An exception raised when a token is missing when parsing code.

The following fields of this exceptions are public and can be accessed freely:

• :file (Path.t/0 or nil) - the file where the error occurred, or nil if the error occurred in code that did not come from a file
• :line - the line for the opening delimiter
• :column - the column for the opening delimiter
• :end_line - the line for the end of the string
• :end_column - the column for the end of the string
• :opening_delimiter - an atom representing the opening delimiter
• :expected_delimiter - an atom representing the expected delimiter
• :description - a description of the missing token error