33 lines
1017 B
Go
33 lines
1017 B
Go
package solana
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import (
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"fmt"
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)
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// InstructionDecoder receives the AccountMeta FOR THAT INSTRUCTION,
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// and not the accounts of the *Message object. Resolve with
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// CompiledInstruction.ResolveInstructionAccounts(message) beforehand.
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type InstructionDecoder func(instructionAccounts []*AccountMeta, data []byte) (interface{}, error)
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var InstructionDecoderRegistry = map[string]InstructionDecoder{}
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func RegisterInstructionDecoder(programID PublicKey, decoder InstructionDecoder) {
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p := programID.String()
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if _, found := InstructionDecoderRegistry[p]; found {
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panic(fmt.Sprintf("unable to re-register instruction decoder for program %q", p))
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}
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InstructionDecoderRegistry[p] = decoder
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}
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func DecodeInstruction(programID PublicKey, accounts []*AccountMeta, data []byte) (interface{}, error) {
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p := programID.String()
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decoder, found := InstructionDecoderRegistry[p]
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if !found {
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return nil, fmt.Errorf("unknown programID, cannot find any instruction decoder %q", p)
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}
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return decoder(accounts, data)
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}
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