mirror of
https://github.com/rust-lang/rust-analyzer
synced 2025-01-06 18:28:51 +00:00
787 lines
15 KiB
Rust
787 lines
15 KiB
Rust
use std::fs;
|
|
|
|
use expect::expect;
|
|
use test_utils::project_dir;
|
|
|
|
use super::{check_infer, check_types};
|
|
|
|
#[test]
|
|
fn cfg_impl_def() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs crate:main deps:foo cfg:test
|
|
use foo::S as T;
|
|
struct S;
|
|
|
|
#[cfg(test)]
|
|
impl S {
|
|
fn foo1(&self) -> i32 { 0 }
|
|
}
|
|
|
|
#[cfg(not(test))]
|
|
impl S {
|
|
fn foo2(&self) -> i32 { 0 }
|
|
}
|
|
|
|
fn test() {
|
|
let t = (S.foo1(), S.foo2(), T.foo3(), T.foo4());
|
|
t;
|
|
} //^ (i32, {unknown}, i32, {unknown})
|
|
|
|
//- /foo.rs crate:foo
|
|
struct S;
|
|
|
|
#[cfg(not(test))]
|
|
impl S {
|
|
fn foo3(&self) -> i32 { 0 }
|
|
}
|
|
|
|
#[cfg(test)]
|
|
impl S {
|
|
fn foo4(&self) -> i32 { 0 }
|
|
}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_macros_expanded() {
|
|
check_infer(
|
|
r#"
|
|
struct Foo(Vec<i32>);
|
|
|
|
macro_rules! foo {
|
|
($($item:expr),*) => {
|
|
{
|
|
Foo(vec![$($item,)*])
|
|
}
|
|
};
|
|
}
|
|
|
|
fn main() {
|
|
let x = foo!(1,2);
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..17 '{Foo(v...,2,])}': Foo
|
|
!1..4 'Foo': Foo({unknown}) -> Foo
|
|
!1..16 'Foo(vec![1,2,])': Foo
|
|
!5..15 'vec![1,2,]': {unknown}
|
|
155..181 '{ ...,2); }': ()
|
|
165..166 'x': Foo
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_legacy_textual_scoped_macros_expanded() {
|
|
check_infer(
|
|
r#"
|
|
struct Foo(Vec<i32>);
|
|
|
|
#[macro_use]
|
|
mod m {
|
|
macro_rules! foo {
|
|
($($item:expr),*) => {
|
|
{
|
|
Foo(vec![$($item,)*])
|
|
}
|
|
};
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let x = foo!(1,2);
|
|
let y = crate::foo!(1,2);
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..17 '{Foo(v...,2,])}': Foo
|
|
!1..4 'Foo': Foo({unknown}) -> Foo
|
|
!1..16 'Foo(vec![1,2,])': Foo
|
|
!5..15 'vec![1,2,]': {unknown}
|
|
194..250 '{ ...,2); }': ()
|
|
204..205 'x': Foo
|
|
227..228 'y': {unknown}
|
|
231..247 'crate:...!(1,2)': {unknown}
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_path_qualified_macros_expanded() {
|
|
check_infer(
|
|
r#"
|
|
#[macro_export]
|
|
macro_rules! foo {
|
|
() => { 42i32 }
|
|
}
|
|
|
|
mod m {
|
|
pub use super::foo as bar;
|
|
}
|
|
|
|
fn main() {
|
|
let x = crate::foo!();
|
|
let y = m::bar!();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..5 '42i32': i32
|
|
!0..5 '42i32': i32
|
|
110..163 '{ ...!(); }': ()
|
|
120..121 'x': i32
|
|
147..148 'y': i32
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn expr_macro_expanded_in_various_places() {
|
|
check_infer(
|
|
r#"
|
|
macro_rules! spam {
|
|
() => (1isize);
|
|
}
|
|
|
|
fn spam() {
|
|
spam!();
|
|
(spam!());
|
|
spam!().spam(spam!());
|
|
for _ in spam!() {}
|
|
|| spam!();
|
|
while spam!() {}
|
|
break spam!();
|
|
return spam!();
|
|
match spam!() {
|
|
_ if spam!() => spam!(),
|
|
}
|
|
spam!()(spam!());
|
|
Spam { spam: spam!() };
|
|
spam!()[spam!()];
|
|
await spam!();
|
|
spam!() as usize;
|
|
&spam!();
|
|
-spam!();
|
|
spam!()..spam!();
|
|
spam!() + spam!();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
!0..6 '1isize': isize
|
|
53..456 '{ ...!(); }': ()
|
|
87..108 'spam!(...am!())': {unknown}
|
|
114..133 'for _ ...!() {}': ()
|
|
118..119 '_': {unknown}
|
|
131..133 '{}': ()
|
|
138..148 '|| spam!()': || -> isize
|
|
154..170 'while ...!() {}': ()
|
|
168..170 '{}': ()
|
|
175..188 'break spam!()': !
|
|
194..208 'return spam!()': !
|
|
214..268 'match ... }': isize
|
|
238..239 '_': isize
|
|
273..289 'spam!(...am!())': {unknown}
|
|
295..317 'Spam {...m!() }': {unknown}
|
|
323..339 'spam!(...am!()]': {unknown}
|
|
364..380 'spam!(... usize': usize
|
|
386..394 '&spam!()': &isize
|
|
400..408 '-spam!()': isize
|
|
414..430 'spam!(...pam!()': {unknown}
|
|
436..453 'spam!(...pam!()': isize
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_type_value_macro_having_same_name() {
|
|
check_infer(
|
|
r#"
|
|
#[macro_export]
|
|
macro_rules! foo {
|
|
() => {
|
|
mod foo {
|
|
pub use super::foo;
|
|
}
|
|
};
|
|
($x:tt) => {
|
|
$x
|
|
};
|
|
}
|
|
|
|
foo!();
|
|
|
|
fn foo() {
|
|
let foo = foo::foo!(42i32);
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..5 '42i32': i32
|
|
170..205 '{ ...32); }': ()
|
|
180..183 'foo': i32
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn processes_impls_generated_by_macros() {
|
|
check_types(
|
|
r#"
|
|
macro_rules! m {
|
|
($ident:ident) => (impl Trait for $ident {})
|
|
}
|
|
trait Trait { fn foo(self) -> u128 {} }
|
|
struct S;
|
|
m!(S);
|
|
fn test() { S.foo(); }
|
|
//^ u128
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_assoc_items_generated_by_macros() {
|
|
check_types(
|
|
r#"
|
|
macro_rules! m {
|
|
() => (fn foo(&self) -> u128 {0})
|
|
}
|
|
struct S;
|
|
impl S {
|
|
m!();
|
|
}
|
|
|
|
fn test() { S.foo(); }
|
|
//^ u128
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_assoc_items_generated_by_macros_chain() {
|
|
check_types(
|
|
r#"
|
|
macro_rules! m_inner {
|
|
() => {fn foo(&self) -> u128 {0}}
|
|
}
|
|
macro_rules! m {
|
|
() => {m_inner!();}
|
|
}
|
|
|
|
struct S;
|
|
impl S {
|
|
m!();
|
|
}
|
|
|
|
fn test() { S.foo(); }
|
|
//^ u128
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_macro_with_dollar_crate_is_correct_in_expr() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs crate:main deps:foo
|
|
fn test() {
|
|
let x = (foo::foo!(1), foo::foo!(2));
|
|
x;
|
|
} //^ (i32, usize)
|
|
|
|
//- /lib.rs crate:foo
|
|
#[macro_export]
|
|
macro_rules! foo {
|
|
(1) => { $crate::bar!() };
|
|
(2) => { 1 + $crate::baz() };
|
|
}
|
|
|
|
#[macro_export]
|
|
macro_rules! bar {
|
|
() => { 42 }
|
|
}
|
|
|
|
pub fn baz() -> usize { 31usize }
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_macro_with_dollar_crate_is_correct_in_trait_associate_type() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs crate:main deps:foo
|
|
use foo::Trait;
|
|
|
|
fn test() {
|
|
let msg = foo::Message(foo::MessageRef);
|
|
let r = msg.deref();
|
|
r;
|
|
//^ &MessageRef
|
|
}
|
|
|
|
//- /lib.rs crate:foo
|
|
pub struct MessageRef;
|
|
pub struct Message(MessageRef);
|
|
|
|
pub trait Trait {
|
|
type Target;
|
|
fn deref(&self) -> &Self::Target;
|
|
}
|
|
|
|
#[macro_export]
|
|
macro_rules! expand {
|
|
() => {
|
|
impl Trait for Message {
|
|
type Target = $crate::MessageRef;
|
|
fn deref(&self) -> &Self::Target {
|
|
&self.0
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
expand!();
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_type_value_non_legacy_macro_use_as() {
|
|
check_infer(
|
|
r#"
|
|
mod m {
|
|
macro_rules! _foo {
|
|
($x:ident) => { type $x = u64; }
|
|
}
|
|
pub(crate) use _foo as foo;
|
|
}
|
|
|
|
m::foo!(foo);
|
|
use foo as bar;
|
|
fn f() -> bar { 0 }
|
|
fn main() {
|
|
let _a = f();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
158..163 '{ 0 }': u64
|
|
160..161 '0': u64
|
|
174..196 '{ ...f(); }': ()
|
|
184..186 '_a': u64
|
|
190..191 'f': fn f() -> u64
|
|
190..193 'f()': u64
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_local_macro() {
|
|
check_infer(
|
|
r#"
|
|
fn main() {
|
|
macro_rules! foo {
|
|
() => { 1usize }
|
|
}
|
|
let _a = foo!();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..6 '1usize': usize
|
|
10..89 '{ ...!(); }': ()
|
|
16..65 'macro_... }': {unknown}
|
|
74..76 '_a': usize
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_local_inner_macros() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs crate:main deps:foo
|
|
fn test() {
|
|
let x = foo::foo!(1);
|
|
x;
|
|
} //^ i32
|
|
|
|
//- /lib.rs crate:foo
|
|
#[macro_export(local_inner_macros)]
|
|
macro_rules! foo {
|
|
(1) => { bar!() };
|
|
}
|
|
|
|
#[macro_export]
|
|
macro_rules! bar {
|
|
() => { 42 }
|
|
}
|
|
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_line() {
|
|
check_infer(
|
|
r#"
|
|
#[rustc_builtin_macro]
|
|
macro_rules! line {() => {}}
|
|
|
|
fn main() {
|
|
let x = line!();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..1 '0': i32
|
|
63..87 '{ ...!(); }': ()
|
|
73..74 'x': i32
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_file() {
|
|
check_infer(
|
|
r#"
|
|
#[rustc_builtin_macro]
|
|
macro_rules! file {() => {}}
|
|
|
|
fn main() {
|
|
let x = file!();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..2 '""': &str
|
|
63..87 '{ ...!(); }': ()
|
|
73..74 'x': &str
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_column() {
|
|
check_infer(
|
|
r#"
|
|
#[rustc_builtin_macro]
|
|
macro_rules! column {() => {}}
|
|
|
|
fn main() {
|
|
let x = column!();
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..1 '0': i32
|
|
65..91 '{ ...!(); }': ()
|
|
75..76 'x': i32
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_concat() {
|
|
check_infer(
|
|
r#"
|
|
#[rustc_builtin_macro]
|
|
macro_rules! concat {() => {}}
|
|
|
|
fn main() {
|
|
let x = concat!("hello", concat!("world", "!"));
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..13 '"helloworld!"': &str
|
|
65..121 '{ ...")); }': ()
|
|
75..76 'x': &str
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_include() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs
|
|
#[rustc_builtin_macro]
|
|
macro_rules! include {() => {}}
|
|
|
|
include!("foo.rs");
|
|
|
|
fn main() {
|
|
bar();
|
|
} //^ u32
|
|
|
|
//- /foo.rs
|
|
fn bar() -> u32 {0}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
#[ignore]
|
|
fn include_accidentally_quadratic() {
|
|
let file = project_dir().join("crates/syntax/test_data/accidentally_quadratic");
|
|
let big_file = fs::read_to_string(file).unwrap();
|
|
let big_file = vec![big_file; 10].join("\n");
|
|
|
|
let fixture = r#"
|
|
//- /main.rs
|
|
#[rustc_builtin_macro]
|
|
macro_rules! include {() => {}}
|
|
|
|
include!("foo.rs");
|
|
|
|
fn main() {
|
|
RegisterBlock { };
|
|
//^ RegisterBlock
|
|
}
|
|
"#;
|
|
let fixture = format!("{}\n//- /foo.rs\n{}", fixture, big_file);
|
|
check_types(&fixture);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_include_concat() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs
|
|
#[rustc_builtin_macro]
|
|
macro_rules! include {() => {}}
|
|
|
|
#[rustc_builtin_macro]
|
|
macro_rules! concat {() => {}}
|
|
|
|
include!(concat!("f", "oo.rs"));
|
|
|
|
fn main() {
|
|
bar();
|
|
} //^ u32
|
|
|
|
//- /foo.rs
|
|
fn bar() -> u32 {0}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_include_concat_with_bad_env_should_failed() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs
|
|
#[rustc_builtin_macro]
|
|
macro_rules! include {() => {}}
|
|
|
|
#[rustc_builtin_macro]
|
|
macro_rules! concat {() => {}}
|
|
|
|
#[rustc_builtin_macro]
|
|
macro_rules! env {() => {}}
|
|
|
|
include!(concat!(env!("OUT_DIR"), "/foo.rs"));
|
|
|
|
fn main() {
|
|
bar();
|
|
} //^ {unknown}
|
|
|
|
//- /foo.rs
|
|
fn bar() -> u32 {0}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_include_itself_should_failed() {
|
|
check_types(
|
|
r#"
|
|
#[rustc_builtin_macro]
|
|
macro_rules! include {() => {}}
|
|
|
|
include!("main.rs");
|
|
|
|
fn main() {
|
|
0
|
|
} //^ i32
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_concat_with_lazy() {
|
|
check_infer(
|
|
r#"
|
|
macro_rules! hello {() => {"hello"}}
|
|
|
|
#[rustc_builtin_macro]
|
|
macro_rules! concat {() => {}}
|
|
|
|
fn main() {
|
|
let x = concat!(hello!(), concat!("world", "!"));
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..13 '"helloworld!"': &str
|
|
103..160 '{ ...")); }': ()
|
|
113..114 'x': &str
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_builtin_macros_env() {
|
|
check_infer(
|
|
r#"
|
|
//- /main.rs env:foo=bar
|
|
#[rustc_builtin_macro]
|
|
macro_rules! env {() => {}}
|
|
|
|
fn main() {
|
|
let x = env!("foo");
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
!0..22 '"__RA_...TED__"': &str
|
|
62..90 '{ ...o"); }': ()
|
|
72..73 'x': &str
|
|
"#]],
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_derive_clone_simple() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs crate:main deps:core
|
|
#[derive(Clone)]
|
|
struct S;
|
|
fn test() {
|
|
S.clone();
|
|
} //^ S
|
|
|
|
//- /lib.rs crate:core
|
|
#[prelude_import]
|
|
use clone::*;
|
|
mod clone {
|
|
trait Clone {
|
|
fn clone(&self) -> Self;
|
|
}
|
|
}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_derive_clone_in_core() {
|
|
check_types(
|
|
r#"
|
|
//- /lib.rs crate:core
|
|
#[prelude_import]
|
|
use clone::*;
|
|
mod clone {
|
|
trait Clone {
|
|
fn clone(&self) -> Self;
|
|
}
|
|
}
|
|
#[derive(Clone)]
|
|
pub struct S;
|
|
|
|
//- /main.rs crate:main deps:core
|
|
use core::S;
|
|
fn test() {
|
|
S.clone();
|
|
} //^ S
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_derive_clone_with_params() {
|
|
check_types(
|
|
r#"
|
|
//- /main.rs crate:main deps:core
|
|
#[derive(Clone)]
|
|
struct S;
|
|
#[derive(Clone)]
|
|
struct Wrapper<T>(T);
|
|
struct NonClone;
|
|
fn test() {
|
|
(Wrapper(S).clone(), Wrapper(NonClone).clone());
|
|
//^ (Wrapper<S>, {unknown})
|
|
}
|
|
|
|
//- /lib.rs crate:core
|
|
#[prelude_import]
|
|
use clone::*;
|
|
mod clone {
|
|
trait Clone {
|
|
fn clone(&self) -> Self;
|
|
}
|
|
}
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn infer_custom_derive_simple() {
|
|
// FIXME: this test current now do nothing
|
|
check_types(
|
|
r#"
|
|
//- /main.rs crate:main
|
|
use foo::Foo;
|
|
|
|
#[derive(Foo)]
|
|
struct S{}
|
|
|
|
fn test() {
|
|
S{};
|
|
} //^ S
|
|
"#,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn macro_in_arm() {
|
|
check_infer(
|
|
r#"
|
|
macro_rules! unit {
|
|
() => { () };
|
|
}
|
|
|
|
fn main() {
|
|
let x = match () {
|
|
unit!() => 92u32,
|
|
};
|
|
}
|
|
"#,
|
|
expect![[r#"
|
|
51..110 '{ ... }; }': ()
|
|
61..62 'x': u32
|
|
65..107 'match ... }': u32
|
|
71..73 '()': ()
|
|
84..91 'unit!()': ()
|
|
95..100 '92u32': u32
|
|
"#]],
|
|
);
|
|
}
|