Merge pull request #34 from ava-labs/devv0.3.0-rc.5

Dev

1 files changed, 0 insertions, 366 deletions

diff --git a/accounts/abi/bind/base.go b/accounts/abi/bind/base.go
deleted file mode 100644
index 3d64f85..0000000
--- a/accounts/abi/bind/base.go
+++ /dev/null
@@ -1,366 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package bind
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"math/big"
-
-	"github.com/ava-labs/coreth/accounts/abi"
-	"github.com/ava-labs/coreth/core/types"
-	"github.com/ava-labs/go-ethereum"
-	"github.com/ava-labs/go-ethereum/common"
-	"github.com/ava-labs/go-ethereum/crypto"
-	"github.com/ava-labs/go-ethereum/event"
-)
-
-// SignerFn is a signer function callback when a contract requires a method to
-// sign the transaction before submission.
-type SignerFn func(types.Signer, common.Address, *types.Transaction) (*types.Transaction, error)
-
-// CallOpts is the collection of options to fine tune a contract call request.
-type CallOpts struct {
-	Pending     bool            // Whether to operate on the pending state or the last known one
-	From        common.Address  // Optional the sender address, otherwise the first account is used
-	BlockNumber *big.Int        // Optional the block number on which the call should be performed
-	Context     context.Context // Network context to support cancellation and timeouts (nil = no timeout)
-}
-
-// TransactOpts is the collection of authorization data required to create a
-// valid Ethereum transaction.
-type TransactOpts struct {
-	From   common.Address // Ethereum account to send the transaction from
-	Nonce  *big.Int       // Nonce to use for the transaction execution (nil = use pending state)
-	Signer SignerFn       // Method to use for signing the transaction (mandatory)
-
-	Value    *big.Int // Funds to transfer along along the transaction (nil = 0 = no funds)
-	GasPrice *big.Int // Gas price to use for the transaction execution (nil = gas price oracle)
-	GasLimit uint64   // Gas limit to set for the transaction execution (0 = estimate)
-
-	Context context.Context // Network context to support cancellation and timeouts (nil = no timeout)
-}
-
-// FilterOpts is the collection of options to fine tune filtering for events
-// within a bound contract.
-type FilterOpts struct {
-	Start uint64  // Start of the queried range
-	End   *uint64 // End of the range (nil = latest)
-
-	Context context.Context // Network context to support cancellation and timeouts (nil = no timeout)
-}
-
-// WatchOpts is the collection of options to fine tune subscribing for events
-// within a bound contract.
-type WatchOpts struct {
-	Start   *uint64         // Start of the queried range (nil = latest)
-	Context context.Context // Network context to support cancellation and timeouts (nil = no timeout)
-}
-
-// BoundContract is the base wrapper object that reflects a contract on the
-// Ethereum network. It contains a collection of methods that are used by the
-// higher level contract bindings to operate.
-type BoundContract struct {
-	address    common.Address     // Deployment address of the contract on the Ethereum blockchain
-	abi        abi.ABI            // Reflect based ABI to access the correct Ethereum methods
-	caller     ContractCaller     // Read interface to interact with the blockchain
-	transactor ContractTransactor // Write interface to interact with the blockchain
-	filterer   ContractFilterer   // Event filtering to interact with the blockchain
-}
-
-// NewBoundContract creates a low level contract interface through which calls
-// and transactions may be made through.
-func NewBoundContract(address common.Address, abi abi.ABI, caller ContractCaller, transactor ContractTransactor, filterer ContractFilterer) *BoundContract {
-	return &BoundContract{
-		address:    address,
-		abi:        abi,
-		caller:     caller,
-		transactor: transactor,
-		filterer:   filterer,
-	}
-}
-
-// DeployContract deploys a contract onto the Ethereum blockchain and binds the
-// deployment address with a Go wrapper.
-func DeployContract(opts *TransactOpts, abi abi.ABI, bytecode []byte, backend ContractBackend, params ...interface{}) (common.Address, *types.Transaction, *BoundContract, error) {
-	// Otherwise try to deploy the contract
-	c := NewBoundContract(common.Address{}, abi, backend, backend, backend)
-
-	input, err := c.abi.Pack("", params...)
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	tx, err := c.transact(opts, nil, append(bytecode, input...))
-	if err != nil {
-		return common.Address{}, nil, nil, err
-	}
-	c.address = crypto.CreateAddress(opts.From, tx.Nonce())
-	return c.address, tx, c, nil
-}
-
-// Call invokes the (constant) contract method with params as input values and
-// sets the output to result. The result type might be a single field for simple
-// returns, a slice of interfaces for anonymous returns and a struct for named
-// returns.
-func (c *BoundContract) Call(opts *CallOpts, result interface{}, method string, params ...interface{}) error {
-	// Don't crash on a lazy user
-	if opts == nil {
-		opts = new(CallOpts)
-	}
-	// Pack the input, call and unpack the results
-	input, err := c.abi.Pack(method, params...)
-	if err != nil {
-		return err
-	}
-	var (
-		msg    = ethereum.CallMsg{From: opts.From, To: &c.address, Data: input}
-		ctx    = ensureContext(opts.Context)
-		code   []byte
-		output []byte
-	)
-	if opts.Pending {
-		pb, ok := c.caller.(PendingContractCaller)
-		if !ok {
-			return ErrNoPendingState
-		}
-		output, err = pb.PendingCallContract(ctx, msg)
-		if err == nil && len(output) == 0 {
-			// Make sure we have a contract to operate on, and bail out otherwise.
-			if code, err = pb.PendingCodeAt(ctx, c.address); err != nil {
-				return err
-			} else if len(code) == 0 {
-				return ErrNoCode
-			}
-		}
-	} else {
-		output, err = c.caller.CallContract(ctx, msg, opts.BlockNumber)
-		if err == nil && len(output) == 0 {
-			// Make sure we have a contract to operate on, and bail out otherwise.
-			if code, err = c.caller.CodeAt(ctx, c.address, opts.BlockNumber); err != nil {
-				return err
-			} else if len(code) == 0 {
-				return ErrNoCode
-			}
-		}
-	}
-	if err != nil {
-		return err
-	}
-	return c.abi.Unpack(result, method, output)
-}
-
-// Transact invokes the (paid) contract method with params as input values.
-func (c *BoundContract) Transact(opts *TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
-	// Otherwise pack up the parameters and invoke the contract
-	input, err := c.abi.Pack(method, params...)
-	if err != nil {
-		return nil, err
-	}
-	return c.transact(opts, &c.address, input)
-}
-
-// Transfer initiates a plain transaction to move funds to the contract, calling
-// its default method if one is available.
-func (c *BoundContract) Transfer(opts *TransactOpts) (*types.Transaction, error) {
-	return c.transact(opts, &c.address, nil)
-}
-
-// transact executes an actual transaction invocation, first deriving any missing
-// authorization fields, and then scheduling the transaction for execution.
-func (c *BoundContract) transact(opts *TransactOpts, contract *common.Address, input []byte) (*types.Transaction, error) {
-	var err error
-
-	// Ensure a valid value field and resolve the account nonce
-	value := opts.Value
-	if value == nil {
-		value = new(big.Int)
-	}
-	var nonce uint64
-	if opts.Nonce == nil {
-		nonce, err = c.transactor.PendingNonceAt(ensureContext(opts.Context), opts.From)
-		if err != nil {
-			return nil, fmt.Errorf("failed to retrieve account nonce: %v", err)
-		}
-	} else {
-		nonce = opts.Nonce.Uint64()
-	}
-	// Figure out the gas allowance and gas price values
-	gasPrice := opts.GasPrice
-	if gasPrice == nil {
-		gasPrice, err = c.transactor.SuggestGasPrice(ensureContext(opts.Context))
-		if err != nil {
-			return nil, fmt.Errorf("failed to suggest gas price: %v", err)
-		}
-	}
-	gasLimit := opts.GasLimit
-	if gasLimit == 0 {
-		// Gas estimation cannot succeed without code for method invocations
-		if contract != nil {
-			if code, err := c.transactor.PendingCodeAt(ensureContext(opts.Context), c.address); err != nil {
-				return nil, err
-			} else if len(code) == 0 {
-				return nil, ErrNoCode
-			}
-		}
-		// If the contract surely has code (or code is not needed), estimate the transaction
-		msg := ethereum.CallMsg{From: opts.From, To: contract, Value: value, Data: input}
-		gasLimit, err = c.transactor.EstimateGas(ensureContext(opts.Context), msg)
-		if err != nil {
-			return nil, fmt.Errorf("failed to estimate gas needed: %v", err)
-		}
-	}
-	// Create the transaction, sign it and schedule it for execution
-	var rawTx *types.Transaction
-	if contract == nil {
-		rawTx = types.NewContractCreation(nonce, value, gasLimit, gasPrice, input)
-	} else {
-		rawTx = types.NewTransaction(nonce, c.address, value, gasLimit, gasPrice, input)
-	}
-	if opts.Signer == nil {
-		return nil, errors.New("no signer to authorize the transaction with")
-	}
-	signedTx, err := opts.Signer(types.HomesteadSigner{}, opts.From, rawTx)
-	if err != nil {
-		return nil, err
-	}
-	if err := c.transactor.SendTransaction(ensureContext(opts.Context), signedTx); err != nil {
-		return nil, err
-	}
-	return signedTx, nil
-}
-
-// FilterLogs filters contract logs for past blocks, returning the necessary
-// channels to construct a strongly typed bound iterator on top of them.
-func (c *BoundContract) FilterLogs(opts *FilterOpts, name string, query ...[]interface{}) (chan types.Log, event.Subscription, error) {
-	// Don't crash on a lazy user
-	if opts == nil {
-		opts = new(FilterOpts)
-	}
-	// Append the event selector to the query parameters and construct the topic set
-	query = append([][]interface{}{{c.abi.Events[name].ID()}}, query...)
-
-	topics, err := makeTopics(query...)
-	if err != nil {
-		return nil, nil, err
-	}
-	// Start the background filtering
-	logs := make(chan types.Log, 128)
-
-	config := ethereum.FilterQuery{
-		Addresses: []common.Address{c.address},
-		Topics:    topics,
-		FromBlock: new(big.Int).SetUint64(opts.Start),
-	}
-	if opts.End != nil {
-		config.ToBlock = new(big.Int).SetUint64(*opts.End)
-	}
-	/* TODO(karalabe): Replace the rest of the method below with this when supported
-	sub, err := c.filterer.SubscribeFilterLogs(ensureContext(opts.Context), config, logs)
-	*/
-	buff, err := c.filterer.FilterLogs(ensureContext(opts.Context), config)
-	if err != nil {
-		return nil, nil, err
-	}
-	sub, err := event.NewSubscription(func(quit <-chan struct{}) error {
-		for _, log := range buff {
-			select {
-			case logs <- log:
-			case <-quit:
-				return nil
-			}
-		}
-		return nil
-	}), nil
-
-	if err != nil {
-		return nil, nil, err
-	}
-	return logs, sub, nil
-}
-
-// WatchLogs filters subscribes to contract logs for future blocks, returning a
-// subscription object that can be used to tear down the watcher.
-func (c *BoundContract) WatchLogs(opts *WatchOpts, name string, query ...[]interface{}) (chan types.Log, event.Subscription, error) {
-	// Don't crash on a lazy user
-	if opts == nil {
-		opts = new(WatchOpts)
-	}
-	// Append the event selector to the query parameters and construct the topic set
-	query = append([][]interface{}{{c.abi.Events[name].ID()}}, query...)
-
-	topics, err := makeTopics(query...)
-	if err != nil {
-		return nil, nil, err
-	}
-	// Start the background filtering
-	logs := make(chan types.Log, 128)
-
-	config := ethereum.FilterQuery{
-		Addresses: []common.Address{c.address},
-		Topics:    topics,
-	}
-	if opts.Start != nil {
-		config.FromBlock = new(big.Int).SetUint64(*opts.Start)
-	}
-	sub, err := c.filterer.SubscribeFilterLogs(ensureContext(opts.Context), config, logs)
-	if err != nil {
-		return nil, nil, err
-	}
-	return logs, sub, nil
-}
-
-// UnpackLog unpacks a retrieved log into the provided output structure.
-func (c *BoundContract) UnpackLog(out interface{}, event string, log types.Log) error {
-	if len(log.Data) > 0 {
-		if err := c.abi.Unpack(out, event, log.Data); err != nil {
-			return err
-		}
-	}
-	var indexed abi.Arguments
-	for _, arg := range c.abi.Events[event].Inputs {
-		if arg.Indexed {
-			indexed = append(indexed, arg)
-		}
-	}
-	return parseTopics(out, indexed, log.Topics[1:])
-}
-
-// UnpackLogIntoMap unpacks a retrieved log into the provided map.
-func (c *BoundContract) UnpackLogIntoMap(out map[string]interface{}, event string, log types.Log) error {
-	if len(log.Data) > 0 {
-		if err := c.abi.UnpackIntoMap(out, event, log.Data); err != nil {
-			return err
-		}
-	}
-	var indexed abi.Arguments
-	for _, arg := range c.abi.Events[event].Inputs {
-		if arg.Indexed {
-			indexed = append(indexed, arg)
-		}
-	}
-	return parseTopicsIntoMap(out, indexed, log.Topics[1:])
-}
-
-// ensureContext is a helper method to ensure a context is not nil, even if the
-// user specified it as such.
-func ensureContext(ctx context.Context) context.Context {
-	if ctx == nil {
-		return context.TODO()
-	}
-	return ctx
-}