neoneo-go/pkg/interop/contract/contract.go

/*
Package contract provides functions to work with contracts.
*/
package contract

import "github.com/nspcc-dev/neo-go/pkg/interop/storage"

// Contract represents a Neo contract and is used in interop functions. It's
// an opaque data structure that you can manipulate with using functions from
// this package. It's similar in function to the Contract class in the Neo .net
// framework.
type Contract struct{}

// GetScript returns the script of the given contract. It uses
// `Neo.Contract.GetScript` syscall.
func GetScript(c Contract) []byte {
	return nil
}

// IsPayable returns whether the given contract is payable (able to accept
// asset transfers to its address). It uses `Neo.Contract.IsPayable` syscall.
func IsPayable(c Contract) bool {
	return false
}

// GetStorageContext returns storage context for the given contract. It only
// works for contracts created in this transaction (so you can't take a storage
// context for arbitrary contract). Refer to the `storage` package on how to
// use this context. This function uses `Neo.Contract.GetStorageContext` syscall.
func GetStorageContext(c Contract) storage.Context {
	return storage.Context{}
}

// Create creates a new contract using a set of input parameters:
//     script      contract's bytecode (limited in length by 1M)
//     manifest    contract's manifest (limited in length by 2 KiB)
// It returns this new created Contract when successful (and fails transaction
// if not). It uses `Neo.Contract.Create` syscall.
func Create(script []byte, manifest []byte) Contract {
	return Contract{}
}

// Migrate migrates calling contract (that is the one that calls Migrate) to
// the new contract. Its parameters have exactly the same semantics as for
// Create. The old contract will be deleted by this call, if it has any storage
// associated it will be migrated to the new contract. New contract is returned.
// This function uses `Neo.Contract.Migrate` syscall.
func Migrate(script []byte, manifest []byte) Contract {
	return Contract{}
}

// Destroy deletes calling contract (the one that calls Destroy) from the
// blockchain, so it's only possible to do that from the contract itself and
// not by any outside code. When contract is deleted all associated storage
// items are deleted too. This function uses `Neo.Contract.Destroy` syscall.
func Destroy() {}