Use InstructionView from Solana SDK
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Problem
Currently, pinocchio defines its own (zero-copy)
InstructionandAccountMetastructs. The name clash makes it confusing to write code that interacts with both Solana SDK and pinocchio.Solution
Use the types from the new
solana-instruction-viewcrate in Solana SDK instead. While this is a breaking change since the type has a different name, it has the same characteristics of the current types, so there is no loss of efficiency. The dependency is behind a"cpi"feature.Note that this change removes the need of having the instruction related code in the main pinocchio crate – instead, client code can import
solana-instruction-viewdirectly to use the types.