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Normalize substs before resolving instance in NoopMethodCall lint - #102489
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I don't think it made sense to use the param-env of the trait here...?
ContributorAuthor
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Also, is this true? We should be able to trigger this lint if we have, e.g. a clone call like <&T as Clone>::clone(..) which is still a no-op...
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Instance::resolve should not panic if substs.needs_subst, it should return a non Ok(Some(_)) value. Removing that check should be ok.
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You're right, and it also fixes a exactly the case that was missing a warning in the original noop-method-call ui test 😸
matthiaskrgr
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Sep 29, 2022
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This might also close #97725 :3 |
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Oct 4, 2022
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@bors r+ rollup |
bors
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Oct 4, 2022
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Rollup of 6 pull requests Successful merges: - rust-lang#101189 (Implement `Ready::into_inner()`) - rust-lang#101642 (Fix in-place collection leak when remaining element destructor panic) - rust-lang#102489 (Normalize substs before resolving instance in `NoopMethodCall` lint) - rust-lang#102559 (Don't ICE when trying to copy unsized value in const prop) - rust-lang#102568 (Lint against nested opaque types that don't satisfy associated type bounds) - rust-lang#102633 (Fix rustdoc ICE in invalid_rust_codeblocks lint) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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Fixes#102074
r? types