diff options
| -rw-r--r-- | src/librustc_typeck/collect.rs | 34 | ||||
| -rw-r--r-- | src/test/ui/typeck/typeck_type_placeholder_item.rs | 25 | ||||
| -rw-r--r-- | src/test/ui/typeck/typeck_type_placeholder_item.stderr | 184 |
3 files changed, 170 insertions, 73 deletions
diff --git a/src/librustc_typeck/collect.rs b/src/librustc_typeck/collect.rs index 6c4e9ecee1c..f257fc5442c 100644 --- a/src/librustc_typeck/collect.rs +++ b/src/librustc_typeck/collect.rs @@ -715,13 +715,21 @@ fn convert_trait_item(tcx: TyCtxt<'_>, trait_item_id: hir::HirId) { tcx.generics_of(def_id); match trait_item.kind { - hir::TraitItemKind::Const(..) - | hir::TraitItemKind::Type(_, Some(_)) - | hir::TraitItemKind::Method(..) => { + hir::TraitItemKind::Method(..) => { tcx.type_of(def_id); - if let hir::TraitItemKind::Method(..) = trait_item.kind { - tcx.fn_sig(def_id); - } + tcx.fn_sig(def_id); + } + + hir::TraitItemKind::Const(.., Some(_)) => { + tcx.type_of(def_id); + } + + hir::TraitItemKind::Const(..) | hir::TraitItemKind::Type(_, Some(_)) => { + tcx.type_of(def_id); + // Account for `const C: _;` and `type T = _;`. + let mut visitor = PlaceholderHirTyCollector::default(); + visitor.visit_trait_item(trait_item); + placeholder_type_error(tcx, DUMMY_SP, &[], visitor.0, false); } hir::TraitItemKind::Type(_, None) => {} @@ -735,8 +743,18 @@ fn convert_impl_item(tcx: TyCtxt<'_>, impl_item_id: hir::HirId) { tcx.generics_of(def_id); tcx.type_of(def_id); tcx.predicates_of(def_id); - if let hir::ImplItemKind::Method(..) = tcx.hir().expect_impl_item(impl_item_id).kind { - tcx.fn_sig(def_id); + let impl_item = tcx.hir().expect_impl_item(impl_item_id); + match impl_item.kind { + hir::ImplItemKind::Method(..) => { + tcx.fn_sig(def_id); + } + hir::ImplItemKind::TyAlias(_) | hir::ImplItemKind::OpaqueTy(_) => { + // Account for `type T = _;` + let mut visitor = PlaceholderHirTyCollector::default(); + visitor.visit_impl_item(impl_item); + placeholder_type_error(tcx, DUMMY_SP, &[], visitor.0, false); + } + hir::ImplItemKind::Const(..) => {} } } diff --git a/src/test/ui/typeck/typeck_type_placeholder_item.rs b/src/test/ui/typeck/typeck_type_placeholder_item.rs index 8ee46343d2d..6cd2b8c75b6 100644 --- a/src/test/ui/typeck/typeck_type_placeholder_item.rs +++ b/src/test/ui/typeck/typeck_type_placeholder_item.rs @@ -1,4 +1,5 @@ -#![feature(type_alias_impl_trait)] // Needed for single test `type Y = impl Trait<_>` +// Needed for `type Y = impl Trait<_>` and `type B = _;` +#![feature(type_alias_impl_trait, associated_type_defaults)] // This test checks that it is not possible to enable global type // inference by using the `_` type placeholder. @@ -188,3 +189,25 @@ type Y = impl Trait<_>; fn foo() -> Y { Struct } + +trait Qux { + type A; + type B = _; + //~^ ERROR the type placeholder `_` is not allowed within types on item signatures + const C: _; + //~^ ERROR the type placeholder `_` is not allowed within types on item signatures + const D: _ = 42; + //~^ ERROR the type placeholder `_` is not allowed within types on item signatures + // type E: _; // FIXME: make the parser propagate the existence of `B` +} +impl Qux for Struct { + type A = _; + //~^ ERROR the type placeholder `_` is not allowed within types on item signatures + type B = _; + //~^ ERROR the type placeholder `_` is not allowed within types on item signatures + const C: _; + //~^ ERROR the type placeholder `_` is not allowed within types on item signatures + //~| ERROR associated constant in `impl` without body + const D: _ = 42; + //~^ ERROR the type placeholder `_` is not allowed within types on item signatures +} diff --git a/src/test/ui/typeck/typeck_type_placeholder_item.stderr b/src/test/ui/typeck/typeck_type_placeholder_item.stderr index 18317d2b974..f2d02f70f4a 100644 --- a/src/test/ui/typeck/typeck_type_placeholder_item.stderr +++ b/src/test/ui/typeck/typeck_type_placeholder_item.stderr @@ -1,35 +1,43 @@ error: expected identifier, found reserved identifier `_` - --> $DIR/typeck_type_placeholder_item.rs:153:18 + --> $DIR/typeck_type_placeholder_item.rs:154:18 | LL | struct BadStruct<_>(_); | ^ expected identifier, found reserved identifier error: expected identifier, found reserved identifier `_` - --> $DIR/typeck_type_placeholder_item.rs:156:16 + --> $DIR/typeck_type_placeholder_item.rs:157:16 | LL | trait BadTrait<_> {} | ^ expected identifier, found reserved identifier error: expected identifier, found reserved identifier `_` - --> $DIR/typeck_type_placeholder_item.rs:169:19 + --> $DIR/typeck_type_placeholder_item.rs:170:19 | LL | struct BadStruct1<_, _>(_); | ^ expected identifier, found reserved identifier error: expected identifier, found reserved identifier `_` - --> $DIR/typeck_type_placeholder_item.rs:169:22 + --> $DIR/typeck_type_placeholder_item.rs:170:22 | LL | struct BadStruct1<_, _>(_); | ^ expected identifier, found reserved identifier error: expected identifier, found reserved identifier `_` - --> $DIR/typeck_type_placeholder_item.rs:174:19 + --> $DIR/typeck_type_placeholder_item.rs:175:19 | LL | struct BadStruct2<_, T>(_, T); | ^ expected identifier, found reserved identifier +error: associated constant in `impl` without body + --> $DIR/typeck_type_placeholder_item.rs:208:5 + | +LL | const C: _; + | ^^^^^^^^^^- + | | + | help: provide a definition for the constant: `= <expr>;` + error[E0403]: the name `_` is already used for a generic parameter in this item's generic parameters - --> $DIR/typeck_type_placeholder_item.rs:169:22 + --> $DIR/typeck_type_placeholder_item.rs:170:22 | LL | struct BadStruct1<_, _>(_); | - ^ already used @@ -37,7 +45,7 @@ LL | struct BadStruct1<_, _>(_); | first use of `_` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:5:14 + --> $DIR/typeck_type_placeholder_item.rs:6:14 | LL | fn test() -> _ { 5 } | ^ @@ -46,7 +54,7 @@ LL | fn test() -> _ { 5 } | help: replace with the correct return type: `i32` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:8:16 + --> $DIR/typeck_type_placeholder_item.rs:9:16 | LL | fn test2() -> (_, _) { (5, 5) } | -^--^- @@ -56,7 +64,7 @@ LL | fn test2() -> (_, _) { (5, 5) } | help: replace with the correct return type: `(i32, i32)` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:11:15 + --> $DIR/typeck_type_placeholder_item.rs:12:15 | LL | static TEST3: _ = "test"; | ^ @@ -65,7 +73,7 @@ LL | static TEST3: _ = "test"; | help: replace `_` with the correct type: `&'static str` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:14:15 + --> $DIR/typeck_type_placeholder_item.rs:15:15 | LL | static TEST4: _ = 145; | ^ @@ -74,13 +82,13 @@ LL | static TEST4: _ = 145; | help: replace `_` with the correct type: `i32` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:17:15 + --> $DIR/typeck_type_placeholder_item.rs:18:15 | LL | static TEST5: (_, _) = (1, 2); | ^^^^^^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:20:13 + --> $DIR/typeck_type_placeholder_item.rs:21:13 | LL | fn test6(_: _) { } | ^ not allowed in type signatures @@ -91,7 +99,7 @@ LL | fn test6<T>(_: T) { } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:23:18 + --> $DIR/typeck_type_placeholder_item.rs:24:18 | LL | fn test6_b<T>(_: _, _: T) { } | ^ not allowed in type signatures @@ -102,7 +110,7 @@ LL | fn test6_b<T, K>(_: K, _: T) { } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:26:30 + --> $DIR/typeck_type_placeholder_item.rs:27:30 | LL | fn test6_c<T, K, L, A, B>(_: _, _: (T, K, L, A, B)) { } | ^ not allowed in type signatures @@ -113,7 +121,7 @@ LL | fn test6_c<T, K, L, A, B, C>(_: C, _: (T, K, L, A, B)) { } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:29:13 + --> $DIR/typeck_type_placeholder_item.rs:30:13 | LL | fn test7(x: _) { let _x: usize = x; } | ^ not allowed in type signatures @@ -124,13 +132,13 @@ LL | fn test7<T>(x: T) { let _x: usize = x; } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:32:22 + --> $DIR/typeck_type_placeholder_item.rs:33:22 | LL | fn test8(_f: fn() -> _) { } | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:32:22 + --> $DIR/typeck_type_placeholder_item.rs:33:22 | LL | fn test8(_f: fn() -> _) { } | ^ not allowed in type signatures @@ -141,7 +149,7 @@ LL | fn test8<T>(_f: fn() -> T) { } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:46:26 + --> $DIR/typeck_type_placeholder_item.rs:47:26 | LL | fn test11(x: &usize) -> &_ { | -^ @@ -150,7 +158,7 @@ LL | fn test11(x: &usize) -> &_ { | help: replace with the correct return type: `&&usize` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:51:52 + --> $DIR/typeck_type_placeholder_item.rs:52:52 | LL | unsafe fn test12(x: *const usize) -> *const *const _ { | --------------^ @@ -159,7 +167,7 @@ LL | unsafe fn test12(x: *const usize) -> *const *const _ { | help: replace with the correct return type: `*const *const usize` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:65:8 + --> $DIR/typeck_type_placeholder_item.rs:66:8 | LL | a: _, | ^ not allowed in type signatures @@ -178,13 +186,13 @@ LL | b: (T, T), | error: missing type for `static` item - --> $DIR/typeck_type_placeholder_item.rs:71:12 + --> $DIR/typeck_type_placeholder_item.rs:72:12 | LL | static A = 42; | ^ help: provide a type for the item: `A: i32` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:73:15 + --> $DIR/typeck_type_placeholder_item.rs:74:15 | LL | static B: _ = 42; | ^ @@ -193,13 +201,13 @@ LL | static B: _ = 42; | help: replace `_` with the correct type: `i32` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:75:15 + --> $DIR/typeck_type_placeholder_item.rs:76:15 | LL | static C: Option<_> = Some(42); | ^^^^^^^^^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:78:21 + --> $DIR/typeck_type_placeholder_item.rs:79:21 | LL | fn fn_test() -> _ { 5 } | ^ @@ -208,7 +216,7 @@ LL | fn fn_test() -> _ { 5 } | help: replace with the correct return type: `i32` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:81:23 + --> $DIR/typeck_type_placeholder_item.rs:82:23 | LL | fn fn_test2() -> (_, _) { (5, 5) } | -^--^- @@ -218,7 +226,7 @@ LL | fn fn_test2() -> (_, _) { (5, 5) } | help: replace with the correct return type: `(i32, i32)` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:84:22 + --> $DIR/typeck_type_placeholder_item.rs:85:22 | LL | static FN_TEST3: _ = "test"; | ^ @@ -227,7 +235,7 @@ LL | static FN_TEST3: _ = "test"; | help: replace `_` with the correct type: `&'static str` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:87:22 + --> $DIR/typeck_type_placeholder_item.rs:88:22 | LL | static FN_TEST4: _ = 145; | ^ @@ -236,13 +244,13 @@ LL | static FN_TEST4: _ = 145; | help: replace `_` with the correct type: `i32` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:90:22 + --> $DIR/typeck_type_placeholder_item.rs:91:22 | LL | static FN_TEST5: (_, _) = (1, 2); | ^^^^^^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:93:20 + --> $DIR/typeck_type_placeholder_item.rs:94:20 | LL | fn fn_test6(_: _) { } | ^ not allowed in type signatures @@ -253,7 +261,7 @@ LL | fn fn_test6<T>(_: T) { } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:96:20 + --> $DIR/typeck_type_placeholder_item.rs:97:20 | LL | fn fn_test7(x: _) { let _x: usize = x; } | ^ not allowed in type signatures @@ -264,13 +272,13 @@ LL | fn fn_test7<T>(x: T) { let _x: usize = x; } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:99:29 + --> $DIR/typeck_type_placeholder_item.rs:100:29 | LL | fn fn_test8(_f: fn() -> _) { } | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:99:29 + --> $DIR/typeck_type_placeholder_item.rs:100:29 | LL | fn fn_test8(_f: fn() -> _) { } | ^ not allowed in type signatures @@ -281,7 +289,7 @@ LL | fn fn_test8<T>(_f: fn() -> T) { } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:122:12 + --> $DIR/typeck_type_placeholder_item.rs:123:12 | LL | a: _, | ^ not allowed in type signatures @@ -300,13 +308,13 @@ LL | b: (T, T), | error[E0282]: type annotations needed - --> $DIR/typeck_type_placeholder_item.rs:127:18 + --> $DIR/typeck_type_placeholder_item.rs:128:18 | LL | fn fn_test11(_: _) -> (_, _) { panic!() } | ^ cannot infer type error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:127:28 + --> $DIR/typeck_type_placeholder_item.rs:128:28 | LL | fn fn_test11(_: _) -> (_, _) { panic!() } | ^ ^ not allowed in type signatures @@ -314,7 +322,7 @@ LL | fn fn_test11(_: _) -> (_, _) { panic!() } | not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:131:30 + --> $DIR/typeck_type_placeholder_item.rs:132:30 | LL | fn fn_test12(x: i32) -> (_, _) { (x, x) } | -^--^- @@ -324,7 +332,7 @@ LL | fn fn_test12(x: i32) -> (_, _) { (x, x) } | help: replace with the correct return type: `(i32, i32)` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:134:33 + --> $DIR/typeck_type_placeholder_item.rs:135:33 | LL | fn fn_test13(x: _) -> (i32, _) { (x, x) } | ------^- @@ -333,7 +341,7 @@ LL | fn fn_test13(x: _) -> (i32, _) { (x, x) } | help: replace with the correct return type: `(i32, i32)` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:153:21 + --> $DIR/typeck_type_placeholder_item.rs:154:21 | LL | struct BadStruct<_>(_); | ^ not allowed in type signatures @@ -344,19 +352,19 @@ LL | struct BadStruct<T>(T); | ^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:158:32 + --> $DIR/typeck_type_placeholder_item.rs:159:32 | LL | impl BadTrait<_> for BadStruct<_> {} | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:158:15 + --> $DIR/typeck_type_placeholder_item.rs:159:15 | LL | impl BadTrait<_> for BadStruct<_> {} | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:158:15 + --> $DIR/typeck_type_placeholder_item.rs:159:15 | LL | impl BadTrait<_> for BadStruct<_> {} | ^ ^ not allowed in type signatures @@ -369,13 +377,13 @@ LL | impl<T> BadTrait<T> for BadStruct<T> {} | ^^^ ^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:163:34 + --> $DIR/typeck_type_placeholder_item.rs:164:34 | LL | fn impl_trait() -> impl BadTrait<_> { | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:169:25 + --> $DIR/typeck_type_placeholder_item.rs:170:25 | LL | struct BadStruct1<_, _>(_); | ^ not allowed in type signatures @@ -386,7 +394,7 @@ LL | struct BadStruct1<T, _>(T); | ^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:174:25 + --> $DIR/typeck_type_placeholder_item.rs:175:25 | LL | struct BadStruct2<_, T>(_, T); | ^ not allowed in type signatures @@ -397,19 +405,19 @@ LL | struct BadStruct2<K, T>(K, T); | ^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:178:14 + --> $DIR/typeck_type_placeholder_item.rs:179:14 | LL | type X = Box<_>; | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:178:14 + --> $DIR/typeck_type_placeholder_item.rs:179:14 | LL | type X = Box<_>; | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:42:27 + --> $DIR/typeck_type_placeholder_item.rs:43:27 | LL | fn test10(&self, _x : _) { } | ^ not allowed in type signatures @@ -420,7 +428,7 @@ LL | fn test10<T>(&self, _x : T) { } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:139:31 + --> $DIR/typeck_type_placeholder_item.rs:140:31 | LL | fn method_test1(&self, x: _); | ^ not allowed in type signatures @@ -431,7 +439,7 @@ LL | fn method_test1<T>(&self, x: T); | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:141:31 + --> $DIR/typeck_type_placeholder_item.rs:142:31 | LL | fn method_test2(&self, x: _) -> _; | ^ ^ not allowed in type signatures @@ -444,7 +452,7 @@ LL | fn method_test2<T>(&self, x: T) -> T; | ^^^ ^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:143:31 + --> $DIR/typeck_type_placeholder_item.rs:144:31 | LL | fn method_test3(&self) -> _; | ^ not allowed in type signatures @@ -455,7 +463,7 @@ LL | fn method_test3<T>(&self) -> T; | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:145:26 + --> $DIR/typeck_type_placeholder_item.rs:146:26 | LL | fn assoc_fn_test1(x: _); | ^ not allowed in type signatures @@ -466,7 +474,7 @@ LL | fn assoc_fn_test1<T>(x: T); | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:147:26 + --> $DIR/typeck_type_placeholder_item.rs:148:26 | LL | fn assoc_fn_test2(x: _) -> _; | ^ ^ not allowed in type signatures @@ -479,7 +487,7 @@ LL | fn assoc_fn_test2<T>(x: T) -> T; | ^^^ ^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:149:28 + --> $DIR/typeck_type_placeholder_item.rs:150:28 | LL | fn assoc_fn_test3() -> _; | ^ not allowed in type signatures @@ -490,7 +498,7 @@ LL | fn assoc_fn_test3<T>() -> T; | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:60:37 + --> $DIR/typeck_type_placeholder_item.rs:61:37 | LL | fn clone_from(&mut self, other: _) { *self = Test9; } | ^ not allowed in type signatures @@ -501,7 +509,7 @@ LL | fn clone_from<T>(&mut self, other: T) { *self = Test9; } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:109:34 + --> $DIR/typeck_type_placeholder_item.rs:110:34 | LL | fn fn_test10(&self, _x : _) { } | ^ not allowed in type signatures @@ -512,7 +520,7 @@ LL | fn fn_test10<T>(&self, _x : T) { } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:117:41 + --> $DIR/typeck_type_placeholder_item.rs:118:41 | LL | fn clone_from(&mut self, other: _) { *self = FnTest9; } | ^ not allowed in type signatures @@ -523,25 +531,46 @@ LL | fn clone_from<T>(&mut self, other: T) { *self = FnTest9; } | ^^^ ^ error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:163:34 + --> $DIR/typeck_type_placeholder_item.rs:164:34 | LL | fn impl_trait() -> impl BadTrait<_> { | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:185:21 + --> $DIR/typeck_type_placeholder_item.rs:186:21 | LL | type Y = impl Trait<_>; | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:185:21 + --> $DIR/typeck_type_placeholder_item.rs:186:21 | LL | type Y = impl Trait<_>; | ^ not allowed in type signatures error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:39:24 + --> $DIR/typeck_type_placeholder_item.rs:195:14 + | +LL | type B = _; + | ^ not allowed in type signatures + +error[E0121]: the type placeholder `_` is not allowed within types on item signatures + --> $DIR/typeck_type_placeholder_item.rs:197:14 + | +LL | const C: _; + | ^ not allowed in type signatures + +error[E0121]: the type placeholder `_` is not allowed within types on item signatures + --> $DIR/typeck_type_placeholder_item.rs:199:14 + | +LL | const D: _ = 42; + | ^ + | | + | not allowed in type signatures + | help: replace `_` with the correct type: `i32` + +error[E0121]: the type placeholder `_` is not allowed within types on item signatures + --> $DIR/typeck_type_placeholder_item.rs:40:24 | LL | fn test9(&self) -> _ { () } | ^ @@ -550,7 +579,7 @@ LL | fn test9(&self) -> _ { () } | help: replace with the correct return type: `()` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:57:24 + --> $DIR/typeck_type_placeholder_item.rs:58:24 | LL | fn clone(&self) -> _ { Test9 } | ^ @@ -559,7 +588,7 @@ LL | fn clone(&self) -> _ { Test9 } | help: replace with the correct return type: `Test9` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:106:31 + --> $DIR/typeck_type_placeholder_item.rs:107:31 | LL | fn fn_test9(&self) -> _ { () } | ^ @@ -568,7 +597,7 @@ LL | fn fn_test9(&self) -> _ { () } | help: replace with the correct return type: `()` error[E0121]: the type placeholder `_` is not allowed within types on item signatures - --> $DIR/typeck_type_placeholder_item.rs:114:28 + --> $DIR/typeck_type_placeholder_item.rs:115:28 | LL | fn clone(&self) -> _ { FnTest9 } | ^ @@ -576,7 +605,34 @@ LL | fn clone(&self) -> _ { FnTest9 } | not allowed in type signatures | help: replace with the correct return type: `main::FnTest9` -error: aborting due to 63 previous errors +error[E0121]: the type placeholder `_` is not allowed within types on item signatures + --> $DIR/typeck_type_placeholder_item.rs:204:14 + | +LL | type A = _; + | ^ not allowed in type signatures + +error[E0121]: the type placeholder `_` is not allowed within types on item signatures + --> $DIR/typeck_type_placeholder_item.rs:206:14 + | +LL | type B = _; + | ^ not allowed in type signatures + +error[E0121]: the type placeholder `_` is not allowed within types on item signatures + --> $DIR/typeck_type_placeholder_item.rs:208:14 + | +LL | const C: _; + | ^ not allowed in type signatures + +error[E0121]: the type placeholder `_` is not allowed within types on item signatures + --> $DIR/typeck_type_placeholder_item.rs:211:14 + | +LL | const D: _ = 42; + | ^ + | | + | not allowed in type signatures + | help: replace `_` with the correct type: `i32` + +error: aborting due to 71 previous errors Some errors have detailed explanations: E0121, E0282, E0403. For more information about an error, try `rustc --explain E0121`. |