feat: Save CU by removing parsing/validation of the token program account args - #144
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feat: Save CU by removing parsing/validation of the token program account args#144kaze-cow wants to merge 2 commits into
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Every token-moving instruction still names its token program — a CPI can only dispatch to a program its own instruction names — but nothing reads those accounts any more. The program a transfer targets is the one owning the account it moves, which the account itself says, so the slots are skipped positionally and dropped from the parsed inputs. `BeginSettle` pulls against the sell account's owner and `FinalizeSettle` pushes against the destination's owner; `CreateBuffer` creates each buffer under its mint's owner and `ReclaimBuffer` closes each one through the program that owns it. That takes ~110-170 CU off every settlement, and costs ~35 CU per buffer in the two batch instructions, which resolve once per buffer rather than once per instruction. `TokenProgramNotProvided` went with the slot validation: a settlement that leaves out a program its accounts live under is now refused by the runtime as a missing account. `PushDestinationInvalid` takes its code, both being new on this stack. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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