add_ed/error/
internal.rs

1/// Defines non-user errors
2///
3/// Expected to report reaching unreachable code, over-/under-flow, etc., if
4/// such is caught. The recommendation when receiving any of these will be:
5/// "Save your work, close the editor, and create an issue at
6/// https://github.com/sidju/add-ed which describes what you did to trigger
7/// this error".
8#[derive(Debug, Clone, PartialEq)]
9pub enum InternalError {
10  /// A code path that shouldn't be reachable was reached. We use this error
11  /// instead of panic to not drop buffer without letting user save
12  UnreachableCode{file: &'static str, line: u32, column: u32},
13  /// `add-ed` internal code tried to create a line from invalid text data. This
14  /// should never occur and indicates a logic bug within `add-ed`.
15  InvalidLineText(crate::buffer::LineTextError),
16}
17
18/// A utility macro for panic free coding
19///
20/// Creates an EdError that details what went wrong where, so you can debug it
21/// when it won't drop data.
22macro_rules! ed_unreachable {
23  () => { Err(EdError::Internal(InternalError::UnreachableCode{
24    file: file!(),
25    line: line!(),
26    column: column!(),
27  })) }
28}
add_ed/error/internal.rs

add_ed/error/
internal.rs
