Make trait refs & assoc ty paths properly induce trait object lifetime defaults#129543

Merged

rust-bors[bot] merged 8 commits into

rust-lang:mainfrom

fmease:obj-lt-def-gat

Jun 10, 2026

Commits on May 31, 2026

Make resolved GAT paths induce trait object lifetime defaults for their own args (excl. self ty)
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Split out fn `compute_object_lifetime_defaults`
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Don't needlessly search for already-found HIR generic param
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Make resolved assoc ty paths induce a trait object lifetime default for their self ty
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Tweak `#[rustc_dump_object_lifetime_defaults]`
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Rename `hir::GenericArgs::{num,has}_generic_params` to `*_generic_args`
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Render trait object lifetime defaults indeterminate in lifetime-instantiated assoc ty bindings
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Introduce fn `eligible_container` & rename depth to rev seg index
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