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move tests

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This commit is contained in:
Aleksey Kladov 2021-10-10 14:08:49 +03:00
parent 464fb9f0d4
commit 8997d742dc
3 changed files with 203 additions and 102 deletions
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1
crates/hir_def/src/macro_expansion_tests.rs
View File

@ -28,6 +28,7 @@ use crate::{
db::DefDatabase, nameres::ModuleSource, resolver::HasResolver, test_db::TestDB, AsMacroCall,
};
#[track_caller]
fn check(ra_fixture: &str, mut expect: Expect) {
let db = TestDB::with_files(ra_fixture);
let krate = db.crate_graph().iter().next().unwrap();

202
crates/hir_def/src/macro_expansion_tests/mbe/regression.rs
View File

@ -173,3 +173,205 @@ macro_rules! int_base {
"##]],
);
}
#[test]
fn test_generate_pattern_iterators() {
// From <https://github.com/rust-lang/rust/blob/316a391dcb7d66dc25f1f9a4ec9d368ef7615005/src/libcore/str/mod.rs>.
check(
r#"
macro_rules! generate_pattern_iterators {
{ double ended; with $(#[$common_stability_attribute:meta])*,
$forward_iterator:ident,
$reverse_iterator:ident, $iterty:ty
} => { ok!(); }
}
generate_pattern_iterators ! ( double ended ; with # [ stable ( feature = "rust1" , since = "1.0.0" ) ] , Split , RSplit , & 'a str );
"#,
expect![[r##"
macro_rules! generate_pattern_iterators {
{ double ended; with $(#[$common_stability_attribute:meta])*,
$forward_iterator:ident,
$reverse_iterator:ident, $iterty:ty
} => { ok!(); }
}
ok!();
"##]],
);
}
#[test]
fn test_impl_fn_for_zst() {
// From <https://github.com/rust-lang/rust/blob/5d20ff4d2718c820632b38c1e49d4de648a9810b/src/libcore/internal_macros.rs>.
check(
r#"
macro_rules! impl_fn_for_zst {
{$( $( #[$attr: meta] )*
struct $Name: ident impl$( <$( $lifetime : lifetime ),+> )? Fn =
|$( $arg: ident: $ArgTy: ty ),*| -> $ReturnTy: ty $body: block;
)+} => {$(
$( #[$attr] )*
struct $Name;
impl $( <$( $lifetime ),+> )? Fn<($( $ArgTy, )*)> for $Name {
#[inline]
extern "rust-call" fn call(&self, ($( $arg, )*): ($( $ArgTy, )*)) -> $ReturnTy {
$body
}
}
impl $( <$( $lifetime ),+> )? FnMut<($( $ArgTy, )*)> for $Name {
#[inline]
extern "rust-call" fn call_mut(
&mut self,
($( $arg, )*): ($( $ArgTy, )*)
) -> $ReturnTy {
Fn::call(&*self, ($( $arg, )*))
}
}
impl $( <$( $lifetime ),+> )? FnOnce<($( $ArgTy, )*)> for $Name {
type Output = $ReturnTy;
#[inline]
extern "rust-call" fn call_once(self, ($( $arg, )*): ($( $ArgTy, )*)) -> $ReturnTy {
Fn::call(&self, ($( $arg, )*))
}
}
)+}
}
impl_fn_for_zst ! {
#[derive(Clone)]
struct CharEscapeDebugContinue impl Fn = |c: char| -> char::EscapeDebug {
c.escape_debug_ext(false)
};
#[derive(Clone)]
struct CharEscapeUnicode impl Fn = |c: char| -> char::EscapeUnicode {
c.escape_unicode()
};
#[derive(Clone)]
struct CharEscapeDefault impl Fn = |c: char| -> char::EscapeDefault {
c.escape_default()
};
}
"#,
expect![[r##"
macro_rules! impl_fn_for_zst {
{$( $( #[$attr: meta] )*
struct $Name: ident impl$( <$( $lifetime : lifetime ),+> )? Fn =
|$( $arg: ident: $ArgTy: ty ),*| -> $ReturnTy: ty $body: block;
)+} => {$(
$( #[$attr] )*
struct $Name;
impl $( <$( $lifetime ),+> )? Fn<($( $ArgTy, )*)> for $Name {
#[inline]
extern "rust-call" fn call(&self, ($( $arg, )*): ($( $ArgTy, )*)) -> $ReturnTy {
$body
}
}
impl $( <$( $lifetime ),+> )? FnMut<($( $ArgTy, )*)> for $Name {
#[inline]
extern "rust-call" fn call_mut(
&mut self,
($( $arg, )*): ($( $ArgTy, )*)
) -> $ReturnTy {
Fn::call(&*self, ($( $arg, )*))
}
}
impl $( <$( $lifetime ),+> )? FnOnce<($( $ArgTy, )*)> for $Name {
type Output = $ReturnTy;
#[inline]
extern "rust-call" fn call_once(self, ($( $arg, )*): ($( $ArgTy, )*)) -> $ReturnTy {
Fn::call(&self, ($( $arg, )*))
}
}
)+}
}
#[derive(Clone)] struct CharEscapeDebugContinue;
impl Fn<(char, )> for CharEscapeDebugContinue {
#[inline] extern "rust-call"fn call(&self , (c, ): (char, )) -> char::EscapeDebug { {
c.escape_debug_ext(false )
}
}
}
impl FnMut<(char, )> for CharEscapeDebugContinue {
#[inline] extern "rust-call"fn call_mut(&mut self , (c, ): (char, )) -> char::EscapeDebug {
Fn::call(&*self , (c, ))
}
}
impl FnOnce<(char, )> for CharEscapeDebugContinue {
type Output = char::EscapeDebug;
#[inline] extern "rust-call"fn call_once(self , (c, ): (char, )) -> char::EscapeDebug {
Fn::call(&self , (c, ))
}
}
#[derive(Clone)] struct CharEscapeUnicode;
impl Fn<(char, )> for CharEscapeUnicode {
#[inline] extern "rust-call"fn call(&self , (c, ): (char, )) -> char::EscapeUnicode { {
c.escape_unicode()
}
}
}
impl FnMut<(char, )> for CharEscapeUnicode {
#[inline] extern "rust-call"fn call_mut(&mut self , (c, ): (char, )) -> char::EscapeUnicode {
Fn::call(&*self , (c, ))
}
}
impl FnOnce<(char, )> for CharEscapeUnicode {
type Output = char::EscapeUnicode;
#[inline] extern "rust-call"fn call_once(self , (c, ): (char, )) -> char::EscapeUnicode {
Fn::call(&self , (c, ))
}
}
#[derive(Clone)] struct CharEscapeDefault;
impl Fn<(char, )> for CharEscapeDefault {
#[inline] extern "rust-call"fn call(&self , (c, ): (char, )) -> char::EscapeDefault { {
c.escape_default()
}
}
}
impl FnMut<(char, )> for CharEscapeDefault {
#[inline] extern "rust-call"fn call_mut(&mut self , (c, ): (char, )) -> char::EscapeDefault {
Fn::call(&*self , (c, ))
}
}
impl FnOnce<(char, )> for CharEscapeDefault {
type Output = char::EscapeDefault;
#[inline] extern "rust-call"fn call_once(self , (c, ): (char, )) -> char::EscapeDefault {
Fn::call(&self , (c, ))
}
}
"##]],
);
}
#[test]
fn test_impl_nonzero_fmt() {
// From <https://github.com/rust-lang/rust/blob/316a391dcb7d66dc25f1f9a4ec9d368ef7615005/src/libcore/num/mod.rs#L12>.
check(
r#"
macro_rules! impl_nonzero_fmt {
( #[$stability: meta] ( $( $Trait: ident ),+ ) for $Ty: ident ) => { ok!(); }
}
impl_nonzero_fmt! {
#[stable(feature= "nonzero",since="1.28.0")]
(Debug, Display, Binary, Octal, LowerHex, UpperHex) for NonZeroU8
}
"#,
expect![[r##"
macro_rules! impl_nonzero_fmt {
( #[$stability: meta] ( $( $Trait: ident ),+ ) for $Ty: ident ) => { ok!(); }
}
ok!();
"##]],
);
}

102
crates/mbe/src/tests/expand.rs
View File

@ -98,108 +98,6 @@ fn test_attr_to_token_tree() {
);
}
#[test]
fn test_generate_pattern_iterators() {
// from https://github.com/rust-lang/rust/blob/316a391dcb7d66dc25f1f9a4ec9d368ef7615005/src/libcore/str/mod.rs
parse_macro(
r#"
macro_rules! generate_pattern_iterators {
{ double ended; with $(#[$common_stability_attribute:meta])*,
$forward_iterator:ident,
$reverse_iterator:ident, $iterty:ty
} => {
fn foo(){}
}
}
"#,
).assert_expand_items(
r#"generate_pattern_iterators ! ( double ended ; with # [ stable ( feature = "rust1" , since = "1.0.0" ) ] , Split , RSplit , & 'a str );"#,
"fn foo () {}",
);
}
#[test]
fn test_impl_fn_for_zst() {
// from https://github.com/rust-lang/rust/blob/5d20ff4d2718c820632b38c1e49d4de648a9810b/src/libcore/internal_macros.rs
parse_macro(
r#"
macro_rules! impl_fn_for_zst {
{ $( $( #[$attr: meta] )*
struct $Name: ident impl$( <$( $lifetime : lifetime ),+> )? Fn =
|$( $arg: ident: $ArgTy: ty ),*| -> $ReturnTy: ty
$body: block; )+
} => {
$(
$( #[$attr] )*
struct $Name;
impl $( <$( $lifetime ),+> )? Fn<($( $ArgTy, )*)> for $Name {
#[inline]
extern "rust-call" fn call(&self, ($( $arg, )*): ($( $ArgTy, )*)) -> $ReturnTy {
$body
}
}
impl $( <$( $lifetime ),+> )? FnMut<($( $ArgTy, )*)> for $Name {
#[inline]
extern "rust-call" fn call_mut(
&mut self,
($( $arg, )*): ($( $ArgTy, )*)
) -> $ReturnTy {
Fn::call(&*self, ($( $arg, )*))
}
}
impl $( <$( $lifetime ),+> )? FnOnce<($( $ArgTy, )*)> for $Name {
type Output = $ReturnTy;
#[inline]
extern "rust-call" fn call_once(self, ($( $arg, )*): ($( $ArgTy, )*)) -> $ReturnTy {
Fn::call(&self, ($( $arg, )*))
}
}
)+
}
}
"#,
).assert_expand_items(r#"
impl_fn_for_zst ! {
# [ derive ( Clone ) ]
struct CharEscapeDebugContinue impl Fn = | c : char | -> char :: EscapeDebug {
c . escape_debug_ext ( false )
} ;
# [ derive ( Clone ) ]
struct CharEscapeUnicode impl Fn = | c : char | -> char :: EscapeUnicode {
c . escape_unicode ( )
} ;
# [ derive ( Clone ) ]
struct CharEscapeDefault impl Fn = | c : char | -> char :: EscapeDefault {
c . escape_default ( )
} ;
}
"#,
"# [derive (Clone)] struct CharEscapeDebugContinue ; impl Fn < (char ,) > for CharEscapeDebugContinue {# [inline] extern \"rust-call\" fn call (& self , (c ,) : (char ,)) -> char :: EscapeDebug {{c . escape_debug_ext (false)}}} impl FnMut < (char ,) > for CharEscapeDebugContinue {# [inline] extern \"rust-call\" fn call_mut (& mut self , (c ,) : (char ,)) -> char :: EscapeDebug {Fn :: call (&* self , (c ,))}} impl FnOnce < (char ,) > for CharEscapeDebugContinue {type Output = char :: EscapeDebug ; # [inline] extern \"rust-call\" fn call_once (self , (c ,) : (char ,)) -> char :: EscapeDebug {Fn :: call (& self , (c ,))}} # [derive (Clone)] struct CharEscapeUnicode ; impl Fn < (char ,) > for CharEscapeUnicode {# [inline] extern \"rust-call\" fn call (& self , (c ,) : (char ,)) -> char :: EscapeUnicode {{c . escape_unicode ()}}} impl FnMut < (char ,) > for CharEscapeUnicode {# [inline] extern \"rust-call\" fn call_mut (& mut self , (c ,) : (char ,)) -> char :: EscapeUnicode {Fn :: call (&* self , (c ,))}} impl FnOnce < (char ,) > for CharEscapeUnicode {type Output = char :: EscapeUnicode ; # [inline] extern \"rust-call\" fn call_once (self , (c ,) : (char ,)) -> char :: EscapeUnicode {Fn :: call (& self , (c ,))}} # [derive (Clone)] struct CharEscapeDefault ; impl Fn < (char ,) > for CharEscapeDefault {# [inline] extern \"rust-call\" fn call (& self , (c ,) : (char ,)) -> char :: EscapeDefault {{c . escape_default ()}}} impl FnMut < (char ,) > for CharEscapeDefault {# [inline] extern \"rust-call\" fn call_mut (& mut self , (c ,) : (char ,)) -> char :: EscapeDefault {Fn :: call (&* self , (c ,))}} impl FnOnce < (char ,) > for CharEscapeDefault {type Output = char :: EscapeDefault ; # [inline] extern \"rust-call\" fn call_once (self , (c ,) : (char ,)) -> char :: EscapeDefault {Fn :: call (& self , (c ,))}}"
);
}
#[test]
fn test_impl_nonzero_fmt() {
// from https://github.com/rust-lang/rust/blob/316a391dcb7d66dc25f1f9a4ec9d368ef7615005/src/libcore/num/mod.rs#L12
parse_macro(
r#"
macro_rules! impl_nonzero_fmt {
( #[$stability: meta] ( $( $Trait: ident ),+ ) for $Ty: ident ) => {
fn foo () {}
}
}
"#,
).assert_expand_items(
r#"impl_nonzero_fmt! { # [stable(feature= "nonzero",since="1.28.0")] (Debug,Display,Binary,Octal,LowerHex,UpperHex) for NonZeroU8}"#,
"fn foo () {}",
);
}
#[test]
fn test_cfg_if_items() {
// from https://github.com/rust-lang/rust/blob/33fe1131cadba69d317156847be9a402b89f11bb/src/libstd/macros.rs#L986