core

Documentation

Index

• func CanTransfer(db vm.StateDB, addr common.Address, amount *big.Int) bool
• func GetHashFn(ref *types.Header, chain ChainContext) func(n uint64) common.Hash
• func NewEVMContext(msg IMessage, author *common.Address, height uint64) vm.Context
• func Transfer(db vm.StateDB, sender, recipient common.Address, amount *big.Int)
• type ChainContext
• type FooChainContext
  • func (self FooChainContext) GetHeader(hash common.Hash, number uint64) *types.Header
• type IMessage

Functions

func CanTransfer

func CanTransfer(db vm.StateDB, addr common.Address, amount *big.Int) bool

CanTransfer checks wether there are enough funds in the address' account to make a transfer. This does not take the necessary gas in to account to make the transfer valid.

func GetHashFn

func GetHashFn(ref *types.Header, chain ChainContext) func(n uint64) common.Hash

GetHashFn returns a GetHashFunc which retrieves header hashes by number

func NewEVMContext

func NewEVMContext(msg IMessage, author *common.Address, height uint64) vm.Context

NewEVMContext creates a new context for use in the EVM.

func Transfer

func Transfer(db vm.StateDB, sender, recipient common.Address, amount *big.Int)

Transfer subtracts amount from sender and adds amount to recipient using the given Db

Types

type ChainContext

type ChainContext interface {

	// GetHeader returns the hash corresponding to their hash.
	GetHeader(common.Hash, uint64) *types.Header
}

ChainContext supports retrieving headers and consensus parameters from the current blockchain to be used during transaction processing.

type FooChainContext

type FooChainContext struct{}

func (FooChainContext) GetHeader

func (self FooChainContext) GetHeader(hash common.Hash, number uint64) *types.Header

type IMessage

type IMessage interface {
	FromAddress() common.Address
}