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timezone info unavailable in builds with small ICU #66184
Description
Version
main
Platform
Subsystem
No response
What steps will reproduce the bug?
nix-shell --argstr icu small --arg withTemporal true --arg devTools '[]' --arg benchmarkTools '[]' --run 'make build-ci -j8'
./node -e 'assert.strictEqual(Temporal.Instant.from("1969-07-20T20:17:00Z").toString(), "1969-07-20T20:17:00Z")'
How often does it reproduce? Is there a required condition?
small ICU with Temporal
What is the expected behavior? Why is that the expected behavior?
Temporal.Instant.from("1969-07-20T20:17:00Z").toString() should output the input string
What do you see instead?
assert.strictEqual(Temporal.Instant.from("1969-07-20T20:17:00Z").toString(), "1969-07-20T20:17:00Z")
^
Error: Temporal error: Internal error: Failed to load timezone info.
at Instant.toString (<anonymous>)
at [eval]:1:66
at runScriptInThisContext (node:internal/vm:219:10)
at node:internal/process/execution:485:12
at [eval]-wrapper:6:24
at runScriptInContext (node:internal/process/execution:483:60)
at evalFunction (node:internal/process/execution:317:30)
at evalTypeScript (node:internal/process/execution:329:3)
at node:internal/main/eval_string:71:3
Node.js v27.0.0-pre
Additional information
Refs: #62676
According to @srl295, this is due to how ICU compute length: it compares the position of the item and the position of the next item; in this case, Zoneinfo64 is the last item, so there are no "next item" to compute the length so it assumes it's empty and throws.
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