4856affd90
- Add a `HandleCycleError` enum to rustc_query_system, along with a `handle_cycle_error` function - Move `Value` to rustc_query_system, so `handle_cycle_error` can use it - Move the `Value` impls from rustc_query_impl to rustc_middle. This is necessary due to orphan rules.
14 lines
468 B
Rust
14 lines
468 B
Rust
use crate::dep_graph::DepContext;
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pub trait Value<CTX: DepContext>: Sized {
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fn from_cycle_error(tcx: CTX) -> Self;
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}
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impl<CTX: DepContext, T> Value<CTX> for T {
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default fn from_cycle_error(tcx: CTX) -> T {
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tcx.sess().abort_if_errors();
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// Ideally we would use `bug!` here. But bug! is only defined in rustc_middle, and it's
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// non-trivial to define it earlier.
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panic!("Value::from_cycle_error called without errors");
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}
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}
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