mirror of
https://github.com/helix-editor/helix.git
synced 2024-08-16 22:30:36 +03:00
241 lines
8.4 KiB
Rust
241 lines
8.4 KiB
Rust
use arc_swap::ArcSwap;
|
|
use helix_core::{
|
|
indent::{indent_level_for_line, treesitter_indent_for_pos, IndentStyle},
|
|
syntax::{Configuration, Loader},
|
|
Syntax,
|
|
};
|
|
use helix_stdx::rope::RopeSliceExt;
|
|
use ropey::Rope;
|
|
use std::{ops::Range, path::PathBuf, process::Command, sync::Arc};
|
|
|
|
#[test]
|
|
fn test_treesitter_indent_rust() {
|
|
standard_treesitter_test("rust.rs", "source.rust");
|
|
}
|
|
|
|
#[test]
|
|
fn test_treesitter_indent_cpp() {
|
|
standard_treesitter_test("cpp.cpp", "source.cpp");
|
|
}
|
|
|
|
#[test]
|
|
fn test_treesitter_indent_rust_helix() {
|
|
// We pin a specific git revision to prevent unrelated changes from causing the indent tests to fail.
|
|
// Ideally, someone updates this once in a while and fixes any errors that occur.
|
|
let rev = "af382768cdaf89ff547dbd8f644a1bddd90e7c8f";
|
|
let files = Command::new("git")
|
|
.args([
|
|
"ls-tree",
|
|
"-r",
|
|
"--name-only",
|
|
"--full-tree",
|
|
rev,
|
|
"helix-term/src",
|
|
])
|
|
.output()
|
|
.unwrap();
|
|
let files = String::from_utf8(files.stdout).unwrap();
|
|
|
|
let ignored_files = [
|
|
// Contains many macros that tree-sitter does not parse in a meaningful way and is otherwise not very interesting
|
|
"helix-term/src/health.rs",
|
|
];
|
|
|
|
for file in files.split_whitespace() {
|
|
if ignored_files.contains(&file) {
|
|
continue;
|
|
}
|
|
#[allow(clippy::single_range_in_vec_init)]
|
|
let ignored_lines: Vec<Range<usize>> = match file {
|
|
"helix-term/src/application.rs" => vec![
|
|
// We can't handle complicated indent rules inside macros (`json!` in this case) since
|
|
// the tree-sitter grammar only parses them as `token_tree` and `identifier` nodes.
|
|
1045..1051,
|
|
],
|
|
"helix-term/src/commands.rs" => vec![
|
|
// This is broken because of the current handling of `call_expression`
|
|
// (i.e. having an indent query for it but outdenting again in specific cases).
|
|
// The indent query is needed to correctly handle multi-line arguments in function calls
|
|
// inside indented `field_expression` nodes (which occurs fairly often).
|
|
//
|
|
// Once we have the `@indent.always` capture type, it might be possible to just have an indent
|
|
// capture for the `arguments` field of a call expression. That could enable us to correctly
|
|
// handle this.
|
|
2226..2230,
|
|
],
|
|
"helix-term/src/commands/dap.rs" => vec![
|
|
// Complex `format!` macro
|
|
46..52,
|
|
],
|
|
"helix-term/src/commands/lsp.rs" => vec![
|
|
// Macro
|
|
624..627,
|
|
// Return type declaration of a closure. `cargo fmt` adds an additional space here,
|
|
// which we cannot (yet) model with our indent queries.
|
|
878..879,
|
|
// Same as in `helix-term/src/commands.rs`
|
|
1335..1343,
|
|
],
|
|
"helix-term/src/config.rs" => vec![
|
|
// Multiline string
|
|
146..152,
|
|
],
|
|
"helix-term/src/keymap.rs" => vec![
|
|
// Complex macro (see above)
|
|
456..470,
|
|
// Multiline string without indent
|
|
563..567,
|
|
],
|
|
"helix-term/src/main.rs" => vec![
|
|
// Multiline string
|
|
44..70,
|
|
],
|
|
"helix-term/src/ui/completion.rs" => vec![
|
|
// Macro
|
|
218..232,
|
|
],
|
|
"helix-term/src/ui/editor.rs" => vec![
|
|
// The chained function calls here are not indented, probably because of the comment
|
|
// in between. Since `cargo fmt` doesn't even attempt to format it, there's probably
|
|
// no point in trying to indent this correctly.
|
|
342..350,
|
|
],
|
|
"helix-term/src/ui/lsp.rs" => vec![
|
|
// Macro
|
|
56..61,
|
|
],
|
|
"helix-term/src/ui/statusline.rs" => vec![
|
|
// Same as in `helix-term/src/commands.rs`
|
|
436..442,
|
|
450..456,
|
|
],
|
|
_ => Vec::new(),
|
|
};
|
|
|
|
let git_object = rev.to_string() + ":" + file;
|
|
let content = Command::new("git")
|
|
.args(["cat-file", "blob", &git_object])
|
|
.output()
|
|
.unwrap();
|
|
let doc = Rope::from_reader(&mut content.stdout.as_slice()).unwrap();
|
|
test_treesitter_indent(file, doc, "source.rust", ignored_lines);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_indent_level_for_line_with_spaces() {
|
|
let tab_width: usize = 4;
|
|
let indent_width: usize = 4;
|
|
|
|
let line = ropey::Rope::from_str(" Indented with 8 spaces");
|
|
|
|
let indent_level = indent_level_for_line(line.slice(0..), tab_width, indent_width);
|
|
assert_eq!(indent_level, 2)
|
|
}
|
|
|
|
#[test]
|
|
fn test_indent_level_for_line_with_tabs() {
|
|
let tab_width: usize = 4;
|
|
let indent_width: usize = 4;
|
|
|
|
let line = ropey::Rope::from_str("\t\tIndented with 2 tabs");
|
|
|
|
let indent_level = indent_level_for_line(line.slice(0..), tab_width, indent_width);
|
|
assert_eq!(indent_level, 2)
|
|
}
|
|
|
|
#[test]
|
|
fn test_indent_level_for_line_with_spaces_and_tabs() {
|
|
let tab_width: usize = 4;
|
|
let indent_width: usize = 4;
|
|
|
|
let line = ropey::Rope::from_str(" \t \tIndented with mix of spaces and tabs");
|
|
|
|
let indent_level = indent_level_for_line(line.slice(0..), tab_width, indent_width);
|
|
assert_eq!(indent_level, 2)
|
|
}
|
|
|
|
fn indent_tests_dir() -> PathBuf {
|
|
let mut test_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
|
|
test_dir.push("tests/data/indent");
|
|
test_dir
|
|
}
|
|
|
|
fn indent_test_path(name: &str) -> PathBuf {
|
|
let mut path = indent_tests_dir();
|
|
path.push(name);
|
|
path
|
|
}
|
|
|
|
fn indent_tests_config() -> Configuration {
|
|
let mut config_path = indent_tests_dir();
|
|
config_path.push("languages.toml");
|
|
let config = std::fs::read_to_string(config_path).unwrap();
|
|
toml::from_str(&config).unwrap()
|
|
}
|
|
|
|
fn standard_treesitter_test(file_name: &str, lang_scope: &str) {
|
|
let test_path = indent_test_path(file_name);
|
|
let test_file = std::fs::File::open(test_path).unwrap();
|
|
let doc = ropey::Rope::from_reader(test_file).unwrap();
|
|
test_treesitter_indent(file_name, doc, lang_scope, Vec::new())
|
|
}
|
|
|
|
/// Test that all the lines in the given file are indented as expected.
|
|
/// ignored_lines is a list of (1-indexed) line ranges that are excluded from this test.
|
|
fn test_treesitter_indent(
|
|
test_name: &str,
|
|
doc: Rope,
|
|
lang_scope: &str,
|
|
ignored_lines: Vec<std::ops::Range<usize>>,
|
|
) {
|
|
let loader = Loader::new(indent_tests_config()).unwrap();
|
|
|
|
// set runtime path so we can find the queries
|
|
let mut runtime = std::path::PathBuf::from(env!("CARGO_MANIFEST_DIR"));
|
|
runtime.push("../runtime");
|
|
std::env::set_var("HELIX_RUNTIME", runtime.to_str().unwrap());
|
|
|
|
let language_config = loader.language_config_for_scope(lang_scope).unwrap();
|
|
let indent_style = IndentStyle::from_str(&language_config.indent.as_ref().unwrap().unit);
|
|
let highlight_config = language_config.highlight_config(&[]).unwrap();
|
|
let text = doc.slice(..);
|
|
let syntax = Syntax::new(
|
|
text,
|
|
highlight_config,
|
|
Arc::new(ArcSwap::from_pointee(loader)),
|
|
)
|
|
.unwrap();
|
|
let indent_query = language_config.indent_query().unwrap();
|
|
|
|
for i in 0..doc.len_lines() {
|
|
let line = text.line(i);
|
|
if ignored_lines.iter().any(|range| range.contains(&(i + 1))) {
|
|
continue;
|
|
}
|
|
if let Some(pos) = line.first_non_whitespace_char() {
|
|
let tab_width: usize = 4;
|
|
let suggested_indent = treesitter_indent_for_pos(
|
|
indent_query,
|
|
&syntax,
|
|
tab_width,
|
|
indent_style.indent_width(tab_width),
|
|
text,
|
|
i,
|
|
text.line_to_char(i) + pos,
|
|
false,
|
|
)
|
|
.unwrap()
|
|
.to_string(&indent_style, tab_width);
|
|
assert!(
|
|
line.get_slice(..pos).map_or(false, |s| s == suggested_indent),
|
|
"Wrong indentation for file {:?} on line {}:\n\"{}\" (original line)\n\"{}\" (suggested indentation)\n",
|
|
test_name,
|
|
i+1,
|
|
line.slice(..line.len_chars()-1),
|
|
suggested_indent,
|
|
);
|
|
}
|
|
}
|
|
}
|