1 use std::time::Instant;
3 use expect_test::{expect_file, ExpectFile};
4 use ide_db::SymbolKind;
5 use test_utils::{bench, bench_fixture, skip_slow_tests, AssertLinear};
7 use crate::{fixture, FileRange, HlTag, TextRange};
10 fn test_highlighting() {
13 //- /main.rs crate:main deps:foo
14 use inner::{self as inner_mod};
17 #[rustc_builtin_macro]
20 // Needed for function consuming vs normal
28 pub trait FnOnce<Args> {}
31 pub trait FnMut<Args>: FnOnce<Args> {}
34 pub trait Fn<Args>: FnMut<Args> {}
43 trait Bar where Self: {
47 impl Bar for Foo where Self: {
48 fn bar(&self) -> i32 {
54 fn baz(mut self, f: Foo) -> i32 {
62 fn quop(&self) -> i32 {
73 fn baz(self, f: FooCopy) -> u32 {
81 fn quop(&self) -> u32 {
90 static mut STATIC_MUT: i32 = 0;
92 fn foo<'a, T>() -> T {
100 fn const_param<const FOO: usize>() -> usize {
105 fn baz<F: Fn() -> ()>(f: F) {
109 fn foobar() -> impl Copy {}
115 macro_rules! def_fn {
116 ($($tt:tt)*) => {$($tt)*}
125 macro_rules! dont_color_me_braces {
135 macro_rules! keyword_frag {
136 ($type:ty) => ($type)
139 macro with_args($i:ident) {
151 println!("Hello, {}!", 92);
152 dont_color_me_braces!();
154 let mut vec = Vec::new();
157 vec.push(Foo { x, y: 1 });
174 let Foo { x: z, y } = Foo { x: z, y };
178 let mut foo = Foo { x, y: x };
179 let foo2 = Foo { x, y: x };
184 let mut copy = FooCopy { x };
210 fn and<U>(self, other: Option<U>) -> Option<(T, U)> {
212 None => unimplemented!(),
218 async fn learn_and_sing() {
219 let song = learn_song().await;
220 sing_song(song).await;
223 async fn async_main() {
224 let f1 = learn_and_sing();
226 futures::join!(f1, f2);
229 unsafe trait Dangerous {}
230 impl Dangerous for () {}
233 let bob = foo::Person {
235 age: foo::consts::NUMBER,
238 let control_flow = foo::identity(foo::ControlFlow::Continue);
240 if control_flow.should_die() {
246 //- /foo.rs crate:foo
248 pub name: &'static str,
252 pub enum ControlFlow {
258 pub fn should_die(self) -> bool {
259 matches!(self, ControlFlow::Die)
263 pub fn identity<T>(x: T) -> T { x }
266 pub const NUMBER: i64 = 92;
276 expect_file!["./test_data/highlighting.html"],
282 fn test_rainbow_highlighting() {
287 let x = hello.to_string();
288 let y = hello.to_string();
290 let x = "other color please!";
291 let y = x.to_string();
295 let mut hello = "hello";
299 expect_file!["./test_data/rainbow_highlighting.html"],
305 fn benchmark_syntax_highlighting_long_struct() {
306 if skip_slow_tests() {
310 let fixture = bench_fixture::big_struct();
311 let (analysis, file_id) = fixture::file(&fixture);
314 let _pt = bench("syntax highlighting long struct");
319 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Struct))
322 assert_eq!(hash, 2001);
326 fn syntax_highlighting_not_quadratic() {
327 if skip_slow_tests() {
331 let mut al = AssertLinear::default();
332 while al.next_round() {
336 let fixture = bench_fixture::big_struct_n(n);
337 let (analysis, file_id) = fixture::file(&fixture);
339 let time = Instant::now();
345 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Struct))
347 assert!(hash > n as usize);
349 let elapsed = time.elapsed();
350 al.sample(n as f64, elapsed.as_millis() as f64);
356 fn benchmark_syntax_highlighting_parser() {
357 if skip_slow_tests() {
361 let fixture = bench_fixture::glorious_old_parser();
362 let (analysis, file_id) = fixture::file(&fixture);
365 let _pt = bench("syntax highlighting parser");
370 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Function))
373 assert_eq!(hash, 1632);
378 let (analysis, file_id) = fixture::file(
380 #[derive(Clone, Debug)]
389 let highlights = &analysis
390 .highlight_range(FileRange { file_id, range: TextRange::at(45.into(), 1.into()) })
393 assert_eq!(&highlights[0].highlight.to_string(), "field.declaration");
397 fn test_flattening() {
400 fn fixture(ra_fixture: &str) {}
406 println!("2 + 2 = {}", 4);
412 expect_file!["./test_data/highlight_injection.html"],
419 let (analysis, file_id) = fixture::file(
426 let _ = analysis.highlight(file_id).unwrap();
430 fn test_string_highlighting() {
431 // The format string detection is based on macro-expansion,
432 // thus, we have to copy the macro definition from `std`
435 macro_rules! println {
437 $crate::io::_print($crate::format_args_nl!($($arg)*));
440 #[rustc_builtin_macro]
441 macro_rules! format_args_nl {
442 ($fmt:expr) => {{ /* compiler built-in */ }};
443 ($fmt:expr, $($args:tt)*) => {{ /* compiler built-in */ }};
447 // from https://doc.rust-lang.org/std/fmt/index.html
448 println!("Hello"); // => "Hello"
449 println!("Hello, {}!", "world"); // => "Hello, world!"
450 println!("The number is {}", 1); // => "The number is 1"
451 println!("{:?}", (3, 4)); // => "(3, 4)"
452 println!("{value}", value=4); // => "4"
453 println!("{} {}", 1, 2); // => "1 2"
454 println!("{:04}", 42); // => "0042" with leading zerosV
455 println!("{1} {} {0} {}", 1, 2); // => "2 1 1 2"
456 println!("{argument}", argument = "test"); // => "test"
457 println!("{name} {}", 1, name = 2); // => "2 1"
458 println!("{a} {c} {b}", a="a", b='b', c=3); // => "a 3 b"
459 println!("{{{}}}", 2); // => "{2}"
460 println!("Hello {:5}!", "x");
461 println!("Hello {:1$}!", "x", 5);
462 println!("Hello {1:0$}!", 5, "x");
463 println!("Hello {:width$}!", "x", width = 5);
464 println!("Hello {:<5}!", "x");
465 println!("Hello {:-<5}!", "x");
466 println!("Hello {:^5}!", "x");
467 println!("Hello {:>5}!", "x");
468 println!("Hello {:+}!", 5);
469 println!("{:#x}!", 27);
470 println!("Hello {:05}!", 5);
471 println!("Hello {:05}!", -5);
472 println!("{:#010x}!", 27);
473 println!("Hello {0} is {1:.5}", "x", 0.01);
474 println!("Hello {1} is {2:.0$}", 5, "x", 0.01);
475 println!("Hello {0} is {2:.1$}", "x", 5, 0.01);
476 println!("Hello {} is {:.*}", "x", 5, 0.01);
477 println!("Hello {} is {2:.*}", "x", 5, 0.01);
478 println!("Hello {} is {number:.prec$}", "x", prec = 5, number = 0.01);
479 println!("{}, `{name:.*}` has 3 fractional digits", "Hello", 3, name=1234.56);
480 println!("{}, `{name:.*}` has 3 characters", "Hello", 3, name="1234.56");
481 println!("{}, `{name:>8.*}` has 3 right-aligned characters", "Hello", 3, name="1234.56");
482 println!("Hello {{}}");
483 println!("{{ Hello");
485 println!(r"Hello, {}!", "world");
488 println!("Hello\nWorld");
489 println!("\u{48}\x65\x6C\x6C\x6F World");
491 println!("{\x41}", A = 92);
492 println!("{ничоси}", ничоси = 92);
494 println!("{:x?} {} ", thingy, n2);
497 expect_file!["./test_data/highlight_strings.html"],
503 fn test_unsafe_highlighting() {
506 unsafe fn unsafe_fn() {}
516 unsafe fn unsafe_method(&self) {}
519 struct TypeForStaticMut {
523 static mut global_mut: TypeForStaticMut = TypeForStaticMut { a: 0 };
530 unsafe trait UnsafeTrait {}
531 unsafe impl UnsafeTrait for Packed {}
533 fn require_unsafe_trait<T: UnsafeTrait>(_: T) {}
536 fn calls_autoref(&self);
539 impl DoTheAutoref for u16 {
540 fn calls_autoref(&self) {}
544 let x = &5 as *const _ as *const usize;
545 let u = Union { b: 0 };
547 // unsafe fn and method calls
551 Union { b: 0 } => (),
554 HasUnsafeFn.unsafe_method();
559 // unsafe access to a static mut
560 let a = global_mut.a;
562 // unsafe ref of packed fields
563 let packed = Packed { a: 0 };
565 let ref a = packed.a;
566 let Packed { ref a } = packed;
567 let Packed { a: ref _a } = packed;
569 // unsafe auto ref of packed field
570 packed.a.calls_autoref();
575 expect_file!["./test_data/highlight_unsafe.html"],
581 fn test_highlight_doc_comment() {
584 //! This is a module to test doc injection.
590 /// let _ = "early doctests should not go boom";
596 /// This is an impl with a code block.
609 pub const bar: bool = true;
611 /// Constructs a new `Foo`.
616 /// # #![allow(unused_mut)]
617 /// let mut foo: Foo = Foo::new();
619 pub const fn new() -> Foo {
623 /// `bar` method on `Foo`.
630 /// let foo = Foo::new();
632 /// // calls bar on foo
633 /// assert!(foo.bar());
635 /// let bar = foo.bar || Foo::bar;
640 /// let multi_line_string = "Foo
647 /// let foobar = Foo::new().bar();
653 pub fn foo(&self) -> bool {
658 /// [`Foo`](Foo) is a struct
659 /// This function is > [`all_the_links`](all_the_links) <
660 /// [`noop`](noop) is a macro below
661 /// [`Item`] is a struct in the module [`module`]
663 /// [`Item`]: module::Item
664 /// [mix_and_match]: ThisShouldntResolve
665 pub fn all_the_links() {}
681 /// let _ = example(&[1, 2, 3]);
686 #[cfg_attr(not(feature = "false"), doc = "loop {}")]
690 #[cfg_attr(feature = "alloc", doc = "```rust")]
691 #[cfg_attr(not(feature = "alloc"), doc = "```ignore")]
692 /// let _ = example(&alloc::vec![1, 2, 3]);
694 pub fn mix_and_match() {}
697 It is beyond me why you'd use these when you got ///
699 let _ = example(&[1, 2, 3]);
701 [`block_comments2`] tests these with indentation
703 pub fn block_comments() {}
706 Really, I don't get it
708 let _ = example(&[1, 2, 3]);
710 [`block_comments`] tests these without indentation
712 pub fn block_comments2() {}
715 expect_file!["./test_data/highlight_doctest.html"],
721 fn test_extern_crate() {
724 //- /main.rs crate:main deps:std,alloc
726 extern crate alloc as abc;
727 //- /std/lib.rs crate:std
729 //- /alloc/lib.rs crate:alloc
732 expect_file!["./test_data/highlight_extern_crate.html"],
738 fn test_associated_function() {
746 pub fn is_static() {}
747 pub fn is_not_static(&self) {}
752 fn t_is_not_static(&self) {}
756 pub fn is_static() {}
757 pub fn is_not_static(&self) {}
760 expect_file!["./test_data/highlight_assoc_functions.html"],
766 fn test_injection() {
769 fn f(ra_fixture: &str) {}
779 expect_file!["./test_data/injection.html"],
784 /// Highlights the code given by the `ra_fixture` argument, renders the
785 /// result as HTML, and compares it with the HTML file given as `snapshot`.
786 /// Note that the `snapshot` file is overwritten by the rendered HTML.
787 fn check_highlighting(ra_fixture: &str, expect: ExpectFile, rainbow: bool) {
788 let (analysis, file_id) = fixture::file(ra_fixture);
789 let actual_html = &analysis.highlight_as_html(file_id, rainbow).unwrap();
790 expect.assert_eq(actual_html)