mirror of
https://github.com/rust-lang/rust-analyzer
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67 lines
2.1 KiB
Rust
67 lines
2.1 KiB
Rust
extern crate difference;
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extern crate itertools;
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extern crate text_unit;
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use std::fmt;
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use itertools::Itertools;
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use text_unit::{TextUnit, TextRange};
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pub use self::difference::Changeset as __Changeset;
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#[macro_export]
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macro_rules! assert_eq_text {
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($expected:expr, $actual:expr) => {{
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let expected = $expected;
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let actual = $actual;
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if expected != actual {
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let changeset = $crate::__Changeset::new(actual, expected, "\n");
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println!("Expected:\n{}\n\nActual:\n{}\nDiff:{}\n", expected, actual, changeset);
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panic!("text differs");
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}
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}};
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($expected:expr, $actual:expr, $($tt:tt)*) => {{
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let expected = $expected;
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let actual = $actual;
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if expected != actual {
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let changeset = $crate::__Changeset::new(actual, expected, "\n");
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println!("Expected:\n{}\n\nActual:\n{}\n\nDiff:\n{}\n", expected, actual, changeset);
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println!($($tt)*);
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panic!("text differs");
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}
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}};
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}
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pub fn assert_eq_dbg(expected: &str, actual: &impl fmt::Debug) {
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let actual = format!("{:?}", actual);
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let expected = expected.lines().map(|l| l.trim()).join(" ");
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assert_eq!(expected, actual);
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}
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pub fn extract_offset(text: &str) -> (TextUnit, String) {
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let cursor = "<|>";
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let cursor_pos = match text.find(cursor) {
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None => panic!("text should contain cursor marker"),
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Some(pos) => pos,
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};
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let mut new_text = String::with_capacity(text.len() - cursor.len());
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new_text.push_str(&text[..cursor_pos]);
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new_text.push_str(&text[cursor_pos + cursor.len()..]);
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let cursor_pos = TextUnit::from(cursor_pos as u32);
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(cursor_pos, new_text)
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}
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pub fn extract_range(text: &str) -> (TextRange, String) {
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let (start, text) = extract_offset(text);
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let (end, text) = extract_offset(&text);
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(TextRange::from_to(start, end), text)
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}
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pub fn add_cursor(text: &str, offset: TextUnit) -> String {
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let offset: u32 = offset.into();
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let offset: usize = offset as usize;
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let mut res = String::new();
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res.push_str(&text[..offset]);
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res.push_str("<|>");
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res.push_str(&text[offset..]);
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res
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}
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