github.com/MetalBlockchain/metalgo@v1.11.9/vms/platformvm/txs/create_subnet_tx.go (about)

     1  // Copyright (C) 2019-2024, Ava Labs, Inc. All rights reserved.
     2  // See the file LICENSE for licensing terms.
     3  
     4  package txs
     5  
     6  import (
     7  	"github.com/MetalBlockchain/metalgo/snow"
     8  	"github.com/MetalBlockchain/metalgo/vms/platformvm/fx"
     9  )
    10  
    11  var _ UnsignedTx = (*CreateSubnetTx)(nil)
    12  
    13  // CreateSubnetTx is an unsigned proposal to create a new subnet
    14  type CreateSubnetTx struct {
    15  	// Metadata, inputs and outputs
    16  	BaseTx `serialize:"true"`
    17  	// Who is authorized to manage this subnet
    18  	Owner fx.Owner `serialize:"true" json:"owner"`
    19  }
    20  
    21  // InitCtx sets the FxID fields in the inputs and outputs of this
    22  // [CreateSubnetTx]. Also sets the [ctx] to the given [vm.ctx] so that
    23  // the addresses can be json marshalled into human readable format
    24  func (tx *CreateSubnetTx) InitCtx(ctx *snow.Context) {
    25  	tx.BaseTx.InitCtx(ctx)
    26  	tx.Owner.InitCtx(ctx)
    27  }
    28  
    29  // SyntacticVerify verifies that this transaction is well-formed
    30  func (tx *CreateSubnetTx) SyntacticVerify(ctx *snow.Context) error {
    31  	switch {
    32  	case tx == nil:
    33  		return ErrNilTx
    34  	case tx.SyntacticallyVerified: // already passed syntactic verification
    35  		return nil
    36  	}
    37  
    38  	if err := tx.BaseTx.SyntacticVerify(ctx); err != nil {
    39  		return err
    40  	}
    41  	if err := tx.Owner.Verify(); err != nil {
    42  		return err
    43  	}
    44  
    45  	tx.SyntacticallyVerified = true
    46  	return nil
    47  }
    48  
    49  func (tx *CreateSubnetTx) Visit(visitor Visitor) error {
    50  	return visitor.CreateSubnetTx(tx)
    51  }