42 lines
1.8 KiB
Plaintext
42 lines
1.8 KiB
Plaintext
error: `~const` can only be applied to `#[const_trait]` traits
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--> $DIR/normalize-tait-in-const.rs:26:42
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LL | const fn with_positive<F: for<'a> ~const Fn(&'a Alias<'a>) + ~const Destruct>(fun: F) {
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| ^^^^^^^^^^^^^^^^^
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error: `~const` can only be applied to `#[const_trait]` traits
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--> $DIR/normalize-tait-in-const.rs:26:69
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LL | const fn with_positive<F: for<'a> ~const Fn(&'a Alias<'a>) + ~const Destruct>(fun: F) {
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| ^^^^^^^^
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error[E0015]: cannot call non-const closure in constant functions
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--> $DIR/normalize-tait-in-const.rs:27:5
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LL | fun(filter_positive());
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| ^^^^^^^^^^^^^^^^^^^^^^
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= note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
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help: consider further restricting this bound
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LL | const fn with_positive<F: for<'a> ~const Fn(&'a Alias<'a>) + ~const Destruct + ~const Fn(&foo::Alias<'_>)>(fun: F) {
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| ++++++++++++++++++++++++++++
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help: add `#![feature(effects)]` to the crate attributes to enable
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LL + #![feature(effects)]
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error[E0493]: destructor of `F` cannot be evaluated at compile-time
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--> $DIR/normalize-tait-in-const.rs:26:79
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LL | const fn with_positive<F: for<'a> ~const Fn(&'a Alias<'a>) + ~const Destruct>(fun: F) {
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| ^^^ the destructor for this type cannot be evaluated in constant functions
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LL | fun(filter_positive());
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LL | }
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| - value is dropped here
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error: aborting due to 4 previous errors
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Some errors have detailed explanations: E0015, E0493.
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For more information about an error, try `rustc --explain E0015`.
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