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workflow: drop the determinism bans (unimplemented-resume pre-support)

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The Date.now()/Math.random()/argless-new-Date() bans existed solely to
keep scripts resume-compatible for the deferred journaling/resume
feature. Pre-support for an unimplemented feature is speculative cost:
scripts may now read the clock freely; implementing resume reintroduces
the bans as a script-contract tightening. The RFC's shipped-state
description is updated in place, the tool DESCRIPTION drops the
constraint sentence (the pinned text-turn header follows), and the
engine README's trust-premise paragraph now leans on absent globals
alone.
This commit is contained in:
imccyu
2026-07-08 00:51:19 +08:00
parent 737e1f7c0a
commit 773ecf03f5
8 changed files with 11 additions and 40 deletions
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11
packages/workflow/workflow-vm/tests/workflow-vm.spec.ts
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@@ -413,16 +413,7 @@ describe('dsh-workflow-vm', () => {
})
})
describe('determinism bans and the value boundary', () => {
it('Date.now, Math.random, and argless new Date throw; parameterized Date stays usable', async () => {
const { ctx, parent } = await setup()
expect((await run(ctx, parent, script('return Date.now()'))).error).toContain('Date.now() is not available')
expect((await run(ctx, parent, script('return Math.random()'))).error).toContain('Math.random() is not available')
expect((await run(ctx, parent, script('return new Date().toISOString()'))).error).toContain('argless new Date()')
const ok = await run(ctx, parent, script('return new Date(0).getTime()'))
expect(ok.value).toBe(0)
})
describe('the value boundary', () => {
it('args are cloned at start: a script scribbling on them cannot mutate the caller\'s object', async () => {
const { ctx, parent } = await setup()
const hostArgs = { files: ['a.ts'], nested: { deep: [1, 2] } }