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40 lines
2.4 KiB
Markdown
40 lines
2.4 KiB
Markdown
# PKG-TOOL-THUMB-04 emitter behavior checkpoint
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Starts from 3bff236145805ecae46ce60ff5c5710189560755. This closes reproduced event
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registry defects independently of the pending 3.5.31/4.4.0 default-policy choice.
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04 remains doing; no default options, extraction timing or public types change.
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## Before and after
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The inherited tiny-emitter structure treats Object.prototype members as event
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arrays. emit/on/off can fail on names such as __proto__, constructor and toString;
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inherited getters/setters can intercept a replaced public e registry. Nested emits
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take separate snapshots, allowing one once wrapper to run in an inner dispatch
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and then again when the outer snapshot resumes, even after the inner throw was
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caught. Re-registering its original callback does not make that duplicate correct.
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The candidate checks own keys and creates new entries with data descriptors,
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retaining the registry object/prototype and ordinary descriptor flags. Each once
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closure is consumed before removal/callback invocation. Normal listener order,
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snapshot behavior, callback ctx, symbols/numbers, duplicate independent
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registrations, original-function removal and synchronous exception identity remain.
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The design matches the already-tested core approach, without adding a runtime
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dependency on the core or erasing this tool's declaration-specific tuple boundary.
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Six new Node cases pass 1/fail 5 on the frozen workspace. Candidate source and
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artifacts repeat them together with the unchanged input/extraction/facade tests.
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The new real-browser case verifies special names, nested once and native DOM
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cleanup. Existing extraction, native media controls and Monaco cases are rerun
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for source/main/legacy because the runtime bundle has changed. Windows WebKit
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Blob failures remain explicit unavailable controls, not successful extraction.
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Installed package checks repeat after the final package documentation/build.
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The upstream attribution remains in every bundle and pack. The provenance ledger
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records these intentional local fixes separately from the previous type-only
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adaptation. THUMB-EVENT-01 tracks closure evidence; default-policy, historical CSS
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and actual supported Safari/core integration gates are unaffected.
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Revert this checkpoint to roll back only the emitter fixes and their records;
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run the normal package build and installed checks again. Keep earlier lifecycle,
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public declaration and distribution fixes. No push, tag or publication.
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