From 47911eb677a29006d243a0b6bf17f26486191ead Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Fri, 18 Apr 2025 23:36:17 +0000 Subject: Don't ICE on pending obligations from deep normalization in a loop --- tests/crashes/133868.rs | 13 ---- tests/ui/traits/deep-norm-pending.rs | 24 ++++++ tests/ui/traits/deep-norm-pending.stderr | 130 +++++++++++++++++++++++++++++++ 3 files changed, 154 insertions(+), 13 deletions(-) delete mode 100644 tests/crashes/133868.rs create mode 100644 tests/ui/traits/deep-norm-pending.rs create mode 100644 tests/ui/traits/deep-norm-pending.stderr (limited to 'tests') diff --git a/tests/crashes/133868.rs b/tests/crashes/133868.rs deleted file mode 100644 index dc25cb9df28..00000000000 --- a/tests/crashes/133868.rs +++ /dev/null @@ -1,13 +0,0 @@ -//@ known-bug: #133868 - -trait Foo { - type Assoc; -} - -trait Bar { - fn method() -> impl Sized; -} -impl Bar for T where ::Assoc: Sized -{ - fn method() {} -} diff --git a/tests/ui/traits/deep-norm-pending.rs b/tests/ui/traits/deep-norm-pending.rs new file mode 100644 index 00000000000..f56c3cfa3ea --- /dev/null +++ b/tests/ui/traits/deep-norm-pending.rs @@ -0,0 +1,24 @@ +trait Foo { + type Assoc; +} + +trait Bar { + fn method() -> impl Sized; + //~^ ERROR the trait bound `T: Foo` is not satisfied +} +impl Bar for T +//~^ ERROR the trait bound `T: Foo` is not satisfied +//~| ERROR the trait bound `T: Foo` is not satisfied +where + ::Assoc: Sized, +{ + fn method() {} + //~^ ERROR the trait bound `T: Foo` is not satisfied + //~| ERROR the trait bound `T: Foo` is not satisfied + //~| ERROR the trait bound `T: Foo` is not satisfied + //~| ERROR the trait bound `T: Foo` is not satisfied + //~| ERROR the trait bound `T: Foo` is not satisfied + //~| ERROR the trait bound `T: Foo` is not satisfied +} + +fn main() {} diff --git a/tests/ui/traits/deep-norm-pending.stderr b/tests/ui/traits/deep-norm-pending.stderr new file mode 100644 index 00000000000..b95b9d7f4ae --- /dev/null +++ b/tests/ui/traits/deep-norm-pending.stderr @@ -0,0 +1,130 @@ +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:15:5 + | +LL | fn method() {} + | ^^^^^^^^^^^ the trait `Foo` is not implemented for `T` + | +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:9:1 + | +LL | / impl Bar for T +LL | | +LL | | +LL | | where +LL | | ::Assoc: Sized, + | |_____________________________^ the trait `Foo` is not implemented for `T` + | +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:9:1 + | +LL | / impl Bar for T +LL | | +LL | | +LL | | where +... | +LL | | } + | |_^ the trait `Foo` is not implemented for `T` + | +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:15:5 + | +LL | fn method() {} + | ^^^^^^^^^^^ the trait `Foo` is not implemented for `T` + | + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:15:5 + | +LL | fn method() {} + | ^^^^^^^^^^^ the trait `Foo` is not implemented for `T` + | +note: required for `T` to implement `Bar` + --> $DIR/deep-norm-pending.rs:9:9 + | +LL | impl Bar for T + | ^^^ ^ +... +LL | ::Assoc: Sized, + | ----- unsatisfied trait bound introduced here +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:15:5 + | +LL | fn method() {} + | ^^^^^^^^^^^ the trait `Foo` is not implemented for `T` + | + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:6:20 + | +LL | fn method() -> impl Sized; + | ^^^^^^^^^^ the trait `Foo` is not implemented for `T` + | +note: required for `T` to implement `Bar` + --> $DIR/deep-norm-pending.rs:9:9 + | +LL | impl Bar for T + | ^^^ ^ +... +LL | ::Assoc: Sized, + | ----- unsatisfied trait bound introduced here +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:15:5 + | +LL | fn method() {} + | ^^^^^^^^^^^ the trait `Foo` is not implemented for `T` + | + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error[E0277]: the trait bound `T: Foo` is not satisfied + --> $DIR/deep-norm-pending.rs:15:8 + | +LL | fn method() {} + | ^^^^^^ the trait `Foo` is not implemented for `T` + | +help: consider further restricting type parameter `T` with trait `Foo` + | +LL | ::Assoc: Sized, T: Foo + | ++++++ + +error: aborting due to 9 previous errors + +For more information about this error, try `rustc --explain E0277`. -- cgit 1.4.1-3-g733a5