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conformance · v134

v134 · explicit-resource-management-sync — conformance probe

6 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.

browser: spec: https://tc39.es/proposal-explicit-resource-management/ chromestatus: #5071680358842368 generated 2026-06-01T08:30:00Z by conformance-author-v1-subagent
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fail
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blocked
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id contract kind verdict detail
symbol-dispose-exists Symbol.dispose is a well-known symbol used by `using`. script
disposablestack-defined DisposableStack is exposed globally. exists
disposablestack-use DisposableStack.prototype.use registers a sync-disposable resource. typeof
disposablestack-dispose-runs-lifo DisposableStack.dispose() runs registered disposers in LIFO order. script
using-declaration-syntax `using` declaration syntax parses (sync resource binding). script
suppressed-error-name SuppressedError has the expected name property and is constructible. script