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)*}
131 macro_rules! keyword_frag {
132 ($type:ty) => ($type)
135 macro with_args($i:ident) {
147 println!("Hello, {}!", 92);
149 let mut vec = Vec::new();
152 vec.push(Foo { x, y: 1 });
169 let Foo { x: z, y } = Foo { x: z, y };
173 let mut foo = Foo { x, y: x };
174 let foo2 = Foo { x, y: x };
179 let mut copy = FooCopy { x };
205 fn and<U>(self, other: Option<U>) -> Option<(T, U)> {
207 None => unimplemented!(),
213 async fn learn_and_sing() {
214 let song = learn_song().await;
215 sing_song(song).await;
218 async fn async_main() {
219 let f1 = learn_and_sing();
221 futures::join!(f1, f2);
224 unsafe trait Dangerous {}
225 impl Dangerous for () {}
228 let bob = foo::Person {
230 age: foo::consts::NUMBER,
233 let control_flow = foo::identity(foo::ControlFlow::Continue);
235 if control_flow.should_die() {
241 //- /foo.rs crate:foo
243 pub name: &'static str,
247 pub enum ControlFlow {
253 pub fn should_die(self) -> bool {
254 matches!(self, ControlFlow::Die)
258 pub fn identity<T>(x: T) -> T { x }
261 pub const NUMBER: i64 = 92;
271 expect_file!["./test_data/highlighting.html"],
277 fn test_rainbow_highlighting() {
282 let x = hello.to_string();
283 let y = hello.to_string();
285 let x = "other color please!";
286 let y = x.to_string();
290 let mut hello = "hello";
294 expect_file!["./test_data/rainbow_highlighting.html"],
300 fn benchmark_syntax_highlighting_long_struct() {
301 if skip_slow_tests() {
305 let fixture = bench_fixture::big_struct();
306 let (analysis, file_id) = fixture::file(&fixture);
309 let _pt = bench("syntax highlighting long struct");
314 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Struct))
317 assert_eq!(hash, 2001);
321 fn syntax_highlighting_not_quadratic() {
322 if skip_slow_tests() {
326 let mut al = AssertLinear::default();
327 while al.next_round() {
331 let fixture = bench_fixture::big_struct_n(n);
332 let (analysis, file_id) = fixture::file(&fixture);
334 let time = Instant::now();
340 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Struct))
342 assert!(hash > n as usize);
344 let elapsed = time.elapsed();
345 al.sample(n as f64, elapsed.as_millis() as f64);
351 fn benchmark_syntax_highlighting_parser() {
352 if skip_slow_tests() {
356 let fixture = bench_fixture::glorious_old_parser();
357 let (analysis, file_id) = fixture::file(&fixture);
360 let _pt = bench("syntax highlighting parser");
365 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Function))
368 assert_eq!(hash, 1632);
373 let (analysis, file_id) = fixture::file(
375 #[derive(Clone, Debug)]
384 let highlights = &analysis
385 .highlight_range(FileRange { file_id, range: TextRange::at(45.into(), 1.into()) })
388 assert_eq!(&highlights[0].highlight.to_string(), "field.declaration");
392 fn test_flattening() {
395 fn fixture(ra_fixture: &str) {}
401 println!("2 + 2 = {}", 4);
407 expect_file!["./test_data/highlight_injection.html"],
414 let (analysis, file_id) = fixture::file(
421 let _ = analysis.highlight(file_id).unwrap();
425 fn test_string_highlighting() {
426 // The format string detection is based on macro-expansion,
427 // thus, we have to copy the macro definition from `std`
430 macro_rules! println {
432 $crate::io::_print($crate::format_args_nl!($($arg)*));
435 #[rustc_builtin_macro]
436 macro_rules! format_args_nl {
437 ($fmt:expr) => {{ /* compiler built-in */ }};
438 ($fmt:expr, $($args:tt)*) => {{ /* compiler built-in */ }};
442 // from https://doc.rust-lang.org/std/fmt/index.html
443 println!("Hello"); // => "Hello"
444 println!("Hello, {}!", "world"); // => "Hello, world!"
445 println!("The number is {}", 1); // => "The number is 1"
446 println!("{:?}", (3, 4)); // => "(3, 4)"
447 println!("{value}", value=4); // => "4"
448 println!("{} {}", 1, 2); // => "1 2"
449 println!("{:04}", 42); // => "0042" with leading zerosV
450 println!("{1} {} {0} {}", 1, 2); // => "2 1 1 2"
451 println!("{argument}", argument = "test"); // => "test"
452 println!("{name} {}", 1, name = 2); // => "2 1"
453 println!("{a} {c} {b}", a="a", b='b', c=3); // => "a 3 b"
454 println!("{{{}}}", 2); // => "{2}"
455 println!("Hello {:5}!", "x");
456 println!("Hello {:1$}!", "x", 5);
457 println!("Hello {1:0$}!", 5, "x");
458 println!("Hello {:width$}!", "x", width = 5);
459 println!("Hello {:<5}!", "x");
460 println!("Hello {:-<5}!", "x");
461 println!("Hello {:^5}!", "x");
462 println!("Hello {:>5}!", "x");
463 println!("Hello {:+}!", 5);
464 println!("{:#x}!", 27);
465 println!("Hello {:05}!", 5);
466 println!("Hello {:05}!", -5);
467 println!("{:#010x}!", 27);
468 println!("Hello {0} is {1:.5}", "x", 0.01);
469 println!("Hello {1} is {2:.0$}", 5, "x", 0.01);
470 println!("Hello {0} is {2:.1$}", "x", 5, 0.01);
471 println!("Hello {} is {:.*}", "x", 5, 0.01);
472 println!("Hello {} is {2:.*}", "x", 5, 0.01);
473 println!("Hello {} is {number:.prec$}", "x", prec = 5, number = 0.01);
474 println!("{}, `{name:.*}` has 3 fractional digits", "Hello", 3, name=1234.56);
475 println!("{}, `{name:.*}` has 3 characters", "Hello", 3, name="1234.56");
476 println!("{}, `{name:>8.*}` has 3 right-aligned characters", "Hello", 3, name="1234.56");
477 println!("Hello {{}}");
478 println!("{{ Hello");
480 println!(r"Hello, {}!", "world");
483 println!("Hello\nWorld");
484 println!("\u{48}\x65\x6C\x6C\x6F World");
486 println!("{\x41}", A = 92);
487 println!("{ничоси}", ничоси = 92);
489 println!("{:x?} {} ", thingy, n2);
492 expect_file!["./test_data/highlight_strings.html"],
498 fn test_unsafe_highlighting() {
501 unsafe fn unsafe_fn() {}
511 unsafe fn unsafe_method(&self) {}
514 struct TypeForStaticMut {
518 static mut global_mut: TypeForStaticMut = TypeForStaticMut { a: 0 };
526 fn calls_autoref(&self);
529 impl DoTheAutoref for u16 {
530 fn calls_autoref(&self) {}
534 let x = &5 as *const _ as *const usize;
535 let u = Union { b: 0 };
537 // unsafe fn and method calls
541 Union { b: 0 } => (),
544 HasUnsafeFn.unsafe_method();
549 // unsafe access to a static mut
550 let a = global_mut.a;
552 // unsafe ref of packed fields
553 let packed = Packed { a: 0 };
555 let ref a = packed.a;
556 let Packed { ref a } = packed;
557 let Packed { a: ref _a } = packed;
559 // unsafe auto ref of packed field
560 packed.a.calls_autoref();
565 expect_file!["./test_data/highlight_unsafe.html"],
571 fn test_highlight_doc_comment() {
574 //! This is a module to test doc injection.
580 /// let _ = "early doctests should not go boom";
586 /// This is an impl with a code block.
599 pub const bar: bool = true;
601 /// Constructs a new `Foo`.
606 /// # #![allow(unused_mut)]
607 /// let mut foo: Foo = Foo::new();
609 pub const fn new() -> Foo {
613 /// `bar` method on `Foo`.
620 /// let foo = Foo::new();
622 /// // calls bar on foo
623 /// assert!(foo.bar());
625 /// let bar = foo.bar || Foo::bar;
630 /// let multi_line_string = "Foo
637 /// let foobar = Foo::new().bar();
643 pub fn foo(&self) -> bool {
648 /// [`Foo`](Foo) is a struct
649 /// This function is > [`all_the_links`](all_the_links) <
650 /// [`noop`](noop) is a macro below
651 /// [`Item`] is a struct in the module [`module`]
653 /// [`Item`]: module::Item
654 /// [mix_and_match]: ThisShouldntResolve
655 pub fn all_the_links() {}
671 /// let _ = example(&[1, 2, 3]);
676 #[cfg_attr(not(feature = "false"), doc = "loop {}")]
680 #[cfg_attr(feature = "alloc", doc = "```rust")]
681 #[cfg_attr(not(feature = "alloc"), doc = "```ignore")]
682 /// let _ = example(&alloc::vec![1, 2, 3]);
684 pub fn mix_and_match() {}
687 It is beyond me why you'd use these when you got ///
689 let _ = example(&[1, 2, 3]);
691 [`block_comments2`] tests these with indentation
693 pub fn block_comments() {}
696 Really, I don't get it
698 let _ = example(&[1, 2, 3]);
700 [`block_comments`] tests these without indentation
702 pub fn block_comments2() {}
705 expect_file!["./test_data/highlight_doctest.html"],
711 fn test_extern_crate() {
714 //- /main.rs crate:main deps:std,alloc
716 extern crate alloc as abc;
717 //- /std/lib.rs crate:std
719 //- /alloc/lib.rs crate:alloc
722 expect_file!["./test_data/highlight_extern_crate.html"],
728 fn test_associated_function() {
736 pub fn is_static() {}
737 pub fn is_not_static(&self) {}
742 fn t_is_not_static(&self) {}
746 pub fn is_static() {}
747 pub fn is_not_static(&self) {}
750 expect_file!["./test_data/highlight_assoc_functions.html"],
756 fn test_injection() {
759 fn f(ra_fixture: &str) {}
769 expect_file!["./test_data/injection.html"],
774 /// Highlights the code given by the `ra_fixture` argument, renders the
775 /// result as HTML, and compares it with the HTML file given as `snapshot`.
776 /// Note that the `snapshot` file is overwritten by the rendered HTML.
777 fn check_highlighting(ra_fixture: &str, expect: ExpectFile, rainbow: bool) {
778 let (analysis, file_id) = fixture::file(ra_fixture);
779 let actual_html = &analysis.highlight_as_html(file_id, rainbow).unwrap();
780 expect.assert_eq(actual_html)