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24 lines
817 B
Rust
24 lines
817 B
Rust
#![feature(generic_const_items)]
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#![allow(incomplete_features)]
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// Check that we emit a *hard* error (not just a lint warning or error for example) for generic
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// parameter defaults on free const items since we are not limited by backward compatibility.
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#![allow(invalid_type_param_default)] // Should have no effect here.
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// FIXME(default_type_parameter_fallback): Consider reallowing them once they work properly.
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const NONE<T = ()>: Option<T> = None::<T>;
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//~^ ERROR defaults for generic parameters are not allowed here
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impl Host {
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const NADA<T = ()>: Option<T> = None::<T>;
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//~^ ERROR defaults for generic parameters are not allowed here
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}
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enum Host {}
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fn body0() { let _ = NONE; } //~ ERROR type annotations needed
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fn body1() { let _ = Host::NADA; } //~ ERROR type annotations needed
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fn main() {}
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