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 //- proc_macros: identity, mirror
14 //- minicore: derive, copy
15 //- /main.rs crate:main deps:foo
16 use inner::{self as inner_mod};
19 #[proc_macros::identity]
22 pub trait FnOnce<Args> {}
25 pub trait FnMut<Args>: FnOnce<Args> {}
28 pub trait Fn<Args>: FnMut<Args> {}
31 proc_macros::mirror! {
38 trait Bar where Self: {
42 impl Bar for Foo where Self: {
43 fn bar(&self) -> i32 {
49 fn baz(mut self, f: Foo) -> i32 {
57 fn quop(&self) -> i32 {
68 fn baz(self, f: FooCopy) -> u32 {
76 fn quop(&self) -> u32 {
85 fn foo<'a, T>() -> T {
93 fn const_param<const FOO: usize>() -> usize {
98 fn baz<F: Fn() -> ()>(f: F) {
102 fn foobar() -> impl Copy {}
108 macro_rules! def_fn {
109 ($($tt:tt)*) => {$($tt)*}
118 macro_rules! dont_color_me_braces {
128 macro_rules! keyword_frag {
129 ($type:ty) => ($type)
132 macro with_args($i:ident) {
144 println!("Hello, {}!", 92);
145 dont_color_me_braces!();
147 let mut vec = Vec::new();
150 vec.push(Foo { x, y: 1 });
164 let Foo { x: z, y } = Foo { x: z, y };
168 let mut foo = Foo { x, y: x };
169 let foo2 = Foo { x, y: x };
174 let mut copy = FooCopy { x };
200 fn and<U>(self, other: Option<U>) -> Option<(T, U)> {
202 None => unimplemented!(),
208 async fn learn_and_sing() {
209 let song = learn_song().await;
210 sing_song(song).await;
213 async fn async_main() {
214 let f1 = learn_and_sing();
216 futures::join!(f1, f2);
220 let bob = foo::Person {
222 age: foo::consts::NUMBER,
225 let control_flow = foo::identity(foo::ControlFlow::Continue);
227 if control_flow.should_die() {
232 pub enum Bool { True, False }
235 pub const fn to_primitive(self) -> bool {
236 matches!(self, Self::True)
239 const USAGE_OF_BOOL:bool = Bool::True.to_primitive();
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, 1616);
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.public");
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]
437 macro_rules! format_args {}
438 #[rustc_builtin_macro]
440 macro_rules! const_format_args {}
441 #[rustc_builtin_macro]
443 macro_rules! format_args_nl {}
446 pub macro panic_2015 {
448 $crate::panicking::panic("explicit panic")
450 ($msg:literal $(,)?) => (
451 $crate::panicking::panic($msg)
453 // Use `panic_str` instead of `panic_display::<&str>` for non_fmt_panic lint.
454 ($msg:expr $(,)?) => (
455 $crate::panicking::panic_str($msg)
457 // Special-case the single-argument case for const_panic.
458 ("{}", $arg:expr $(,)?) => (
459 $crate::panicking::panic_display(&$arg)
461 ($fmt:expr, $($arg:tt)+) => (
462 $crate::panicking::panic_fmt($crate::const_format_args!($fmt, $($arg)+))
467 #[rustc_builtin_macro(std_panic)]
469 macro_rules! panic {}
470 #[rustc_builtin_macro]
471 macro_rules! assert {}
472 #[rustc_builtin_macro]
476 () => ($crate::panic!("not yet implemented"));
477 ($($arg:tt)+) => ($crate::panic!("not yet implemented: {}", $crate::format_args!($($arg)+)));
481 // from https://doc.rust-lang.org/std/fmt/index.html
482 println!("Hello"); // => "Hello"
483 println!("Hello, {}!", "world"); // => "Hello, world!"
484 println!("The number is {}", 1); // => "The number is 1"
485 println!("{:?}", (3, 4)); // => "(3, 4)"
486 println!("{value}", value=4); // => "4"
487 println!("{} {}", 1, 2); // => "1 2"
488 println!("{:04}", 42); // => "0042" with leading zerosV
489 println!("{1} {} {0} {}", 1, 2); // => "2 1 1 2"
490 println!("{argument}", argument = "test"); // => "test"
491 println!("{name} {}", 1, name = 2); // => "2 1"
492 println!("{a} {c} {b}", a="a", b='b', c=3); // => "a 3 b"
493 println!("{{{}}}", 2); // => "{2}"
494 println!("Hello {:5}!", "x");
495 println!("Hello {:1$}!", "x", 5);
496 println!("Hello {1:0$}!", 5, "x");
497 println!("Hello {:width$}!", "x", width = 5);
498 println!("Hello {:<5}!", "x");
499 println!("Hello {:-<5}!", "x");
500 println!("Hello {:^5}!", "x");
501 println!("Hello {:>5}!", "x");
502 println!("Hello {:+}!", 5);
503 println!("{:#x}!", 27);
504 println!("Hello {:05}!", 5);
505 println!("Hello {:05}!", -5);
506 println!("{:#010x}!", 27);
507 println!("Hello {0} is {1:.5}", "x", 0.01);
508 println!("Hello {1} is {2:.0$}", 5, "x", 0.01);
509 println!("Hello {0} is {2:.1$}", "x", 5, 0.01);
510 println!("Hello {} is {:.*}", "x", 5, 0.01);
511 println!("Hello {} is {2:.*}", "x", 5, 0.01);
512 println!("Hello {} is {number:.prec$}", "x", prec = 5, number = 0.01);
513 println!("{}, `{name:.*}` has 3 fractional digits", "Hello", 3, name=1234.56);
514 println!("{}, `{name:.*}` has 3 characters", "Hello", 3, name="1234.56");
515 println!("{}, `{name:>8.*}` has 3 right-aligned characters", "Hello", 3, name="1234.56");
516 println!("Hello {{}}");
517 println!("{{ Hello");
519 println!(r"Hello, {}!", "world");
522 println!("Hello\nWorld");
523 println!("\u{48}\x65\x6C\x6C\x6F World");
525 println!("{\x41}", A = 92);
526 println!("{ничоси}", ничоси = 92);
528 println!("{:x?} {} ", thingy, n2);
530 panic!("more {}", 1);
531 assert!(true, "{}", 1);
532 assert!(true, "{} asdasd", 1);
534 asm!("mov eax, {0}");
535 format_args!(concat!("{}"), "{}");
538 expect_file!["./test_data/highlight_strings.html"],
544 fn test_unsafe_highlighting() {
547 static mut MUT_GLOBAL: Struct = Struct { field: 0 };
548 static GLOBAL: Struct = Struct { field: 0 };
549 unsafe fn unsafe_fn() {}
556 struct Struct { field: i32 }
558 unsafe fn unsafe_method(&self) {}
566 unsafe trait UnsafeTrait {}
567 unsafe impl UnsafeTrait for Packed {}
568 impl !UnsafeTrait for () {}
570 fn unsafe_trait_bound<T: UnsafeTrait>(_: T) {}
573 fn calls_autoref(&self);
576 impl DoTheAutoref for u16 {
577 fn calls_autoref(&self) {}
581 let x = &5 as *const _ as *const usize;
582 let u = Union { b: 0 };
584 // unsafe fn and method calls
588 Union { b: 0 } => (),
591 Struct { field: 0 }.unsafe_method();
596 // unsafe access to a static mut
600 // unsafe ref of packed fields
601 let packed = Packed { a: 0 };
603 let ref a = packed.a;
604 let Packed { ref a } = packed;
605 let Packed { a: ref _a } = packed;
607 // unsafe auto ref of packed field
608 packed.a.calls_autoref();
613 expect_file!["./test_data/highlight_unsafe.html"],
619 fn test_highlight_doc_comment() {
622 //! This is a module to test doc injection.
628 /// let _ = "early doctests should not go boom";
634 /// This is an impl with a code block.
647 pub const bar: bool = true;
649 /// Constructs a new `Foo`.
654 /// # #![allow(unused_mut)]
655 /// let mut foo: Foo = Foo::new();
657 pub const fn new() -> Foo {
661 /// `bar` method on `Foo`.
668 /// let foo = Foo::new();
670 /// // calls bar on foo
671 /// assert!(foo.bar());
673 /// let bar = foo.bar || Foo::bar;
678 /// let multi_line_string = "Foo
685 /// let foobar = Foo::new().bar();
691 pub fn foo(&self) -> bool {
696 /// [`Foo`](Foo) is a struct
697 /// This function is > [`all_the_links`](all_the_links) <
698 /// [`noop`](noop) is a macro below
699 /// [`Item`] is a struct in the module [`module`]
701 /// [`Item`]: module::Item
702 /// [mix_and_match]: ThisShouldntResolve
703 pub fn all_the_links() {}
710 /// macro_rules! noop { ($expr:expr) => { $expr }}
720 /// let _ = example(&[1, 2, 3]);
725 #[cfg_attr(not(feature = "false"), doc = "loop {}")]
729 #[cfg_attr(feature = "alloc", doc = "```rust")]
730 #[cfg_attr(not(feature = "alloc"), doc = "```ignore")]
731 /// let _ = example(&alloc::vec![1, 2, 3]);
733 pub fn mix_and_match() {}
736 It is beyond me why you'd use these when you got ///
738 let _ = example(&[1, 2, 3]);
740 [`block_comments2`] tests these with indentation
742 pub fn block_comments() {}
745 Really, I don't get it
747 let _ = example(&[1, 2, 3]);
749 [`block_comments`] tests these without indentation
751 pub fn block_comments2() {}
754 expect_file!["./test_data/highlight_doctest.html"],
760 fn test_extern_crate() {
763 //- /main.rs crate:main deps:std,alloc
765 extern crate alloc as abc;
766 //- /std/lib.rs crate:std
768 //- /alloc/lib.rs crate:alloc
771 expect_file!["./test_data/highlight_extern_crate.html"],
777 fn test_crate_root() {
780 //- minicore: iterators
781 //- /main.rs crate:main deps:foo
785 pub const NINETY_TWO: u8 = 92;
789 pub(crate) fn main() {
790 let baz = iter::repeat(92);
794 pub(in super) const FORTY_TWO: u8 = 42;
797 use super::super::NINETY_TWO;
798 use crate::foooo::Point;
800 pub(in super::super) const TWENTY_NINE: u8 = 29;
803 //- /foo.rs crate:foo
810 pub(super) fn swap(p: crate::Point) -> crate::Point {
811 crate::Point { x: p.y, y: p.x }
815 expect_file!["./test_data/highlight_crate_root.html"],
821 fn test_default_library() {
824 //- minicore: option, iterators
829 let nums = iter::repeat(foo.unwrap());
832 expect_file!["./test_data/highlight_default_library.html"],
838 fn test_associated_function() {
846 pub fn is_static() {}
847 pub fn is_not_static(&self) {}
852 fn t_is_not_static(&self) {}
856 pub fn is_static() {}
857 pub fn is_not_static(&self) {}
860 expect_file!["./test_data/highlight_assoc_functions.html"],
866 fn test_injection() {
869 fn f(ra_fixture: &str) {}
879 expect_file!["./test_data/injection.html"],
884 /// Highlights the code given by the `ra_fixture` argument, renders the
885 /// result as HTML, and compares it with the HTML file given as `snapshot`.
886 /// Note that the `snapshot` file is overwritten by the rendered HTML.
887 fn check_highlighting(ra_fixture: &str, expect: ExpectFile, rainbow: bool) {
888 let (analysis, file_id) = fixture::file(ra_fixture);
889 let actual_html = &analysis.highlight_as_html(file_id, rainbow).unwrap();
890 expect.assert_eq(actual_html)