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();
248 <T as Baz>::Qux: Bar {}
250 //- /foo.rs crate:foo
252 pub name: &'static str,
256 pub enum ControlFlow {
262 pub fn should_die(self) -> bool {
263 matches!(self, ControlFlow::Die)
267 pub fn identity<T>(x: T) -> T { x }
270 pub const NUMBER: i64 = 92;
280 expect_file!["./test_data/highlighting.html"],
286 fn test_rainbow_highlighting() {
291 let x = hello.to_string();
292 let y = hello.to_string();
294 let x = "other color please!";
295 let y = x.to_string();
299 let mut hello = "hello";
303 expect_file!["./test_data/rainbow_highlighting.html"],
309 fn benchmark_syntax_highlighting_long_struct() {
310 if skip_slow_tests() {
314 let fixture = bench_fixture::big_struct();
315 let (analysis, file_id) = fixture::file(&fixture);
318 let _pt = bench("syntax highlighting long struct");
323 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Struct))
326 assert_eq!(hash, 2001);
330 fn syntax_highlighting_not_quadratic() {
331 if skip_slow_tests() {
335 let mut al = AssertLinear::default();
336 while al.next_round() {
340 let fixture = bench_fixture::big_struct_n(n);
341 let (analysis, file_id) = fixture::file(&fixture);
343 let time = Instant::now();
349 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Struct))
351 assert!(hash > n as usize);
353 let elapsed = time.elapsed();
354 al.sample(n as f64, elapsed.as_millis() as f64);
360 fn benchmark_syntax_highlighting_parser() {
361 if skip_slow_tests() {
365 let fixture = bench_fixture::glorious_old_parser();
366 let (analysis, file_id) = fixture::file(&fixture);
369 let _pt = bench("syntax highlighting parser");
374 .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Function))
377 assert_eq!(hash, 1616);
382 let (analysis, file_id) = fixture::file(
384 #[derive(Clone, Debug)]
393 let highlights = &analysis
394 .highlight_range(FileRange { file_id, range: TextRange::at(45.into(), 1.into()) })
397 assert_eq!(&highlights[0].highlight.to_string(), "field.declaration.public");
401 fn test_flattening() {
404 fn fixture(ra_fixture: &str) {}
410 println!("2 + 2 = {}", 4);
416 expect_file!["./test_data/highlight_injection.html"],
423 let (analysis, file_id) = fixture::file(
430 let _ = analysis.highlight(file_id).unwrap();
434 fn test_string_highlighting() {
435 // The format string detection is based on macro-expansion,
436 // thus, we have to copy the macro definition from `std`
439 macro_rules! println {
441 $crate::io::_print($crate::format_args_nl!($($arg)*));
444 #[rustc_builtin_macro]
446 macro_rules! format_args {}
447 #[rustc_builtin_macro]
449 macro_rules! const_format_args {}
450 #[rustc_builtin_macro]
452 macro_rules! format_args_nl {}
455 pub macro panic_2015 {
457 $crate::panicking::panic("explicit panic")
459 ($msg:literal $(,)?) => (
460 $crate::panicking::panic($msg)
462 // Use `panic_str` instead of `panic_display::<&str>` for non_fmt_panic lint.
463 ($msg:expr $(,)?) => (
464 $crate::panicking::panic_str($msg)
466 // Special-case the single-argument case for const_panic.
467 ("{}", $arg:expr $(,)?) => (
468 $crate::panicking::panic_display(&$arg)
470 ($fmt:expr, $($arg:tt)+) => (
471 $crate::panicking::panic_fmt($crate::const_format_args!($fmt, $($arg)+))
476 #[rustc_builtin_macro(std_panic)]
478 macro_rules! panic {}
479 #[rustc_builtin_macro]
480 macro_rules! assert {}
481 #[rustc_builtin_macro]
485 () => ($crate::panic!("not yet implemented"));
486 ($($arg:tt)+) => ($crate::panic!("not yet implemented: {}", $crate::format_args!($($arg)+)));
490 // from https://doc.rust-lang.org/std/fmt/index.html
491 println!("Hello"); // => "Hello"
492 println!("Hello, {}!", "world"); // => "Hello, world!"
493 println!("The number is {}", 1); // => "The number is 1"
494 println!("{:?}", (3, 4)); // => "(3, 4)"
495 println!("{value}", value=4); // => "4"
496 println!("{} {}", 1, 2); // => "1 2"
497 println!("{:04}", 42); // => "0042" with leading zerosV
498 println!("{1} {} {0} {}", 1, 2); // => "2 1 1 2"
499 println!("{argument}", argument = "test"); // => "test"
500 println!("{name} {}", 1, name = 2); // => "2 1"
501 println!("{a} {c} {b}", a="a", b='b', c=3); // => "a 3 b"
502 println!("{{{}}}", 2); // => "{2}"
503 println!("Hello {:5}!", "x");
504 println!("Hello {:1$}!", "x", 5);
505 println!("Hello {1:0$}!", 5, "x");
506 println!("Hello {:width$}!", "x", width = 5);
507 println!("Hello {:<5}!", "x");
508 println!("Hello {:-<5}!", "x");
509 println!("Hello {:^5}!", "x");
510 println!("Hello {:>5}!", "x");
511 println!("Hello {:+}!", 5);
512 println!("{:#x}!", 27);
513 println!("Hello {:05}!", 5);
514 println!("Hello {:05}!", -5);
515 println!("{:#010x}!", 27);
516 println!("Hello {0} is {1:.5}", "x", 0.01);
517 println!("Hello {1} is {2:.0$}", 5, "x", 0.01);
518 println!("Hello {0} is {2:.1$}", "x", 5, 0.01);
519 println!("Hello {} is {:.*}", "x", 5, 0.01);
520 println!("Hello {} is {2:.*}", "x", 5, 0.01);
521 println!("Hello {} is {number:.prec$}", "x", prec = 5, number = 0.01);
522 println!("{}, `{name:.*}` has 3 fractional digits", "Hello", 3, name=1234.56);
523 println!("{}, `{name:.*}` has 3 characters", "Hello", 3, name="1234.56");
524 println!("{}, `{name:>8.*}` has 3 right-aligned characters", "Hello", 3, name="1234.56");
525 println!("Hello {{}}");
526 println!("{{ Hello");
528 println!(r"Hello, {}!", "world");
531 println!("Hello\nWorld");
532 println!("\u{48}\x65\x6C\x6C\x6F World");
534 println!("{\x41}", A = 92);
535 println!("{ничоси}", ничоси = 92);
537 println!("{:x?} {} ", thingy, n2);
539 panic!("more {}", 1);
540 assert!(true, "{}", 1);
541 assert!(true, "{} asdasd", 1);
543 asm!("mov eax, {0}");
544 format_args!(concat!("{}"), "{}");
547 expect_file!["./test_data/highlight_strings.html"],
553 fn test_unsafe_highlighting() {
556 static mut MUT_GLOBAL: Struct = Struct { field: 0 };
557 static GLOBAL: Struct = Struct { field: 0 };
558 unsafe fn unsafe_fn() {}
565 struct Struct { field: i32 }
567 unsafe fn unsafe_method(&self) {}
575 unsafe trait UnsafeTrait {}
576 unsafe impl UnsafeTrait for Packed {}
577 impl !UnsafeTrait for () {}
579 fn unsafe_trait_bound<T: UnsafeTrait>(_: T) {}
582 fn calls_autoref(&self);
585 impl DoTheAutoref for u16 {
586 fn calls_autoref(&self) {}
590 let x = &5 as *const _ as *const usize;
591 let u = Union { b: 0 };
593 // unsafe fn and method calls
597 Union { b: 0 } => (),
600 Struct { field: 0 }.unsafe_method();
605 // unsafe access to a static mut
609 // unsafe ref of packed fields
610 let packed = Packed { a: 0 };
612 let ref a = packed.a;
613 let Packed { ref a } = packed;
614 let Packed { a: ref _a } = packed;
616 // unsafe auto ref of packed field
617 packed.a.calls_autoref();
622 expect_file!["./test_data/highlight_unsafe.html"],
628 fn test_highlight_doc_comment() {
631 //! This is a module to test doc injection.
637 /// let _ = "early doctests should not go boom";
643 /// This is an impl with a code block.
656 pub const bar: bool = true;
658 /// Constructs a new `Foo`.
663 /// # #![allow(unused_mut)]
664 /// let mut foo: Foo = Foo::new();
666 pub const fn new() -> Foo {
670 /// `bar` method on `Foo`.
677 /// let foo = Foo::new();
679 /// // calls bar on foo
680 /// assert!(foo.bar());
682 /// let bar = foo.bar || Foo::bar;
687 /// let multi_line_string = "Foo
694 /// let foobar = Foo::new().bar();
700 pub fn foo(&self) -> bool {
705 /// [`Foo`](Foo) is a struct
706 /// This function is > [`all_the_links`](all_the_links) <
707 /// [`noop`](noop) is a macro below
708 /// [`Item`] is a struct in the module [`module`]
710 /// [`Item`]: module::Item
711 /// [mix_and_match]: ThisShouldntResolve
712 pub fn all_the_links() {}
719 /// macro_rules! noop { ($expr:expr) => { $expr }}
729 /// let _ = example(&[1, 2, 3]);
734 #[cfg_attr(not(feature = "false"), doc = "loop {}")]
738 #[cfg_attr(feature = "alloc", doc = "```rust")]
739 #[cfg_attr(not(feature = "alloc"), doc = "```ignore")]
740 /// let _ = example(&alloc::vec![1, 2, 3]);
742 pub fn mix_and_match() {}
745 It is beyond me why you'd use these when you got ///
747 let _ = example(&[1, 2, 3]);
749 [`block_comments2`] tests these with indentation
751 pub fn block_comments() {}
754 Really, I don't get it
756 let _ = example(&[1, 2, 3]);
758 [`block_comments`] tests these without indentation
760 pub fn block_comments2() {}
763 expect_file!["./test_data/highlight_doctest.html"],
769 fn test_extern_crate() {
772 //- /main.rs crate:main deps:std,alloc
774 extern crate alloc as abc;
775 //- /std/lib.rs crate:std
777 //- /alloc/lib.rs crate:alloc
780 expect_file!["./test_data/highlight_extern_crate.html"],
786 fn test_crate_root() {
789 //- minicore: iterators
790 //- /main.rs crate:main deps:foo
794 pub const NINETY_TWO: u8 = 92;
798 pub(crate) fn main() {
799 let baz = iter::repeat(92);
803 pub(in super) const FORTY_TWO: u8 = 42;
806 use super::super::NINETY_TWO;
807 use crate::foooo::Point;
809 pub(in super::super) const TWENTY_NINE: u8 = 29;
812 //- /foo.rs crate:foo
819 pub(super) fn swap(p: crate::Point) -> crate::Point {
820 crate::Point { x: p.y, y: p.x }
824 expect_file!["./test_data/highlight_crate_root.html"],
830 fn test_default_library() {
833 //- minicore: option, iterators
838 let nums = iter::repeat(foo.unwrap());
841 expect_file!["./test_data/highlight_default_library.html"],
847 fn test_associated_function() {
855 pub fn is_static() {}
856 pub fn is_not_static(&self) {}
861 fn t_is_not_static(&self) {}
865 pub fn is_static() {}
866 pub fn is_not_static(&self) {}
869 expect_file!["./test_data/highlight_assoc_functions.html"],
875 fn test_injection() {
878 fn f(ra_fixture: &str) {}
888 expect_file!["./test_data/injection.html"],
893 /// Highlights the code given by the `ra_fixture` argument, renders the
894 /// result as HTML, and compares it with the HTML file given as `snapshot`.
895 /// Note that the `snapshot` file is overwritten by the rendered HTML.
896 fn check_highlighting(ra_fixture: &str, expect: ExpectFile, rainbow: bool) {
897 let (analysis, file_id) = fixture::file(ra_fixture);
898 let actual_html = &analysis.highlight_as_html(file_id, rainbow).unwrap();
899 expect.assert_eq(actual_html)