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request.currency_rate is rejected even in a branch that can never run #228
Description
Summary
Any reference to request.currency_rate fails analysis, even when it sits in a branch whose condition is a literal true. Scripts written for several markets often keep a conversion branch for non-USD symbols; today the whole script cannot be translated, even when backtested on a USD-quoted symbol where the branch is never taken.
Versions
pineforge-codegen 1.6.1
Reproduction
//@version=6
strategy('Currency branch')
rate = true ? 1.0 : request.currency_rate('EUR', 'USD')
plot(rate)
ANALYZER 3:42 request.currency_rate(...) is not supported.
Request
Either support request.currency_rate (daily rate feed supplied by the host, like other request.* data), or translate it to a run-time error raised only if the call is actually evaluated, so scripts that never take that branch can run.
Activity
letiep97 commentedon Oct 20, 2026
Still reproduces on main (
aebad8c). A pointer in case it helps:request.currency_rateis listed inHARD_REJECT_FUNC(support_checker.py#L164), so any reference fails whether or not it can run.NO_DATA_REQUEST_FUNC, support_checker.py#L152-L158, andNO_DATA_REQUEST_FUNCS, external_requests.py#L121) would cover uses that only reach display or alerts.runtime.error()does (codegen/visit_call.py#L2368-L2373), would give the behaviour the issue asks for.Real support needs a rate feed from the host, which is your design call.
luisleo526 commentedon Oct 25, 2026
Thank you for the report. Confirmed in the v1.7.0 source: any reference to
request.currency_rateis rejected at analysis time, even in a branch that can never run. This is not fixed in v1.7.0. We are not adding a currency-rate data feed in this change. The planned change is the second option you suggested: translate the call so that it raises a run-time error only if the call is actually evaluated, so scripts that never take that branch can run. We expect to open the pull request on 2026-10-27.letiep97 commentedon Oct 28, 2026
Verified on main (
11b5ca5, with engine 1.6.1): the reproduction withrequest.currency_ratein a branch that never runs now translates and runs. Thank you for the fix.