FA-11554 / Filesystem semantics / Member archive

Replacing a pathname retargets an already open descriptor · case 04

Replacing a pathname retargets an already open descriptor.

Member previewVariant 4 · 3 implementations · 6 checks per implementation

Case contract

Deterministic in-memory filesystem model. Open destination containing old, then atomically replace its name with a different inode containing new. Return [open-handle content, pathname content]; aliases counts additional names of old inode.

Why this case matters

An offline semantic experiment for file API clients; it models only the stated operations, not a complete operating system.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
open target survives replacement	`["new", "new"]`	`["old4", "new"]`	Failed

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