FA-4632 / Iterator consumption / Member archive

All short circuit consumption · case 02

The operation returns a result or retained state that violates this contract: Apply all to a one-pass stream and return [truth result,unconsumed suffix]; the empty result is true.

Member previewVariant 2 · 3 implementations · 4 checks per implementation

Case scope

A controlled failure with recorded boundary checks.

Why this case matters

A controlled local-runtime regression for collection APIs, language semantics, or ownership wrappers. Fixtures include boundary and interaction cases.

One recorded failure

Sample boundary fixture

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

Boundary fixture	Actual	Expected	Outcome
first false stops	`[false, []]`	`[false, [true]]`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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