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-rw-r--r--internal/ethapi/api.go63
-rw-r--r--internal/ethapi/backend.go3
-rw-r--r--internal/ethapi/tracer.go364
-rw-r--r--internal/ethapi/tracer_test.go147
4 files changed, 34 insertions, 543 deletions
diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go
index d07b2e693..55bd5aa1b 100644
--- a/internal/ethapi/api.go
+++ b/internal/ethapi/api.go
@@ -45,7 +45,6 @@ import (
)
const (
- defaultGas = 90000
defaultGasPrice = 50 * params.Shannon
)
@@ -575,18 +574,18 @@ func (s *PublicBlockChainAPI) GetStorageAt(ctx context.Context, address common.A
type CallArgs struct {
From common.Address `json:"from"`
To *common.Address `json:"to"`
- Gas hexutil.Big `json:"gas"`
+ Gas hexutil.Uint64 `json:"gas"`
GasPrice hexutil.Big `json:"gasPrice"`
Value hexutil.Big `json:"value"`
Data hexutil.Bytes `json:"data"`
}
-func (s *PublicBlockChainAPI) doCall(ctx context.Context, args CallArgs, blockNr rpc.BlockNumber, vmCfg vm.Config) ([]byte, *big.Int, bool, error) {
+func (s *PublicBlockChainAPI) doCall(ctx context.Context, args CallArgs, blockNr rpc.BlockNumber, vmCfg vm.Config) ([]byte, uint64, bool, error) {
defer func(start time.Time) { log.Debug("Executing EVM call finished", "runtime", time.Since(start)) }(time.Now())
state, header, err := s.b.StateAndHeaderByNumber(ctx, blockNr)
if state == nil || err != nil {
- return nil, common.Big0, false, err
+ return nil, 0, false, err
}
// Set sender address or use a default if none specified
addr := args.From
@@ -598,9 +597,9 @@ func (s *PublicBlockChainAPI) doCall(ctx context.Context, args CallArgs, blockNr
}
}
// Set default gas & gas price if none were set
- gas, gasPrice := args.Gas.ToInt(), args.GasPrice.ToInt()
- if gas.Sign() == 0 {
- gas = big.NewInt(50000000)
+ gas, gasPrice := uint64(args.Gas), args.GasPrice.ToInt()
+ if gas == 0 {
+ gas = 50000000
}
if gasPrice.Sign() == 0 {
gasPrice = new(big.Int).SetUint64(defaultGasPrice)
@@ -624,7 +623,7 @@ func (s *PublicBlockChainAPI) doCall(ctx context.Context, args CallArgs, blockNr
// Get a new instance of the EVM.
evm, vmError, err := s.b.GetEVM(ctx, msg, state, header, vmCfg)
if err != nil {
- return nil, common.Big0, false, err
+ return nil, 0, false, err
}
// Wait for the context to be done and cancel the evm. Even if the
// EVM has finished, cancelling may be done (repeatedly)
@@ -635,10 +634,10 @@ func (s *PublicBlockChainAPI) doCall(ctx context.Context, args CallArgs, blockNr
// Setup the gas pool (also for unmetered requests)
// and apply the message.
- gp := new(core.GasPool).AddGas(math.MaxBig256)
+ gp := new(core.GasPool).AddGas(math.MaxUint64)
res, gas, failed, err := core.ApplyMessage(evm, msg, gp)
if err := vmError(); err != nil {
- return nil, common.Big0, false, err
+ return nil, 0, false, err
}
return res, gas, failed, err
}
@@ -652,28 +651,29 @@ func (s *PublicBlockChainAPI) Call(ctx context.Context, args CallArgs, blockNr r
// EstimateGas returns an estimate of the amount of gas needed to execute the
// given transaction against the current pending block.
-func (s *PublicBlockChainAPI) EstimateGas(ctx context.Context, args CallArgs) (*hexutil.Big, error) {
- // Determine the lowest and highest possible gas limits to binary search in between
+func (s *PublicBlockChainAPI) EstimateGas(ctx context.Context, args CallArgs) (hexutil.Uint64, error) {
+ // Binary search the gas requirement, as it may be higher than the amount used
var (
lo uint64 = params.TxGas - 1
hi uint64
cap uint64
)
- if (*big.Int)(&args.Gas).Uint64() >= params.TxGas {
- hi = (*big.Int)(&args.Gas).Uint64()
+ if uint64(args.Gas) >= params.TxGas {
+ hi = uint64(args.Gas)
} else {
// Retrieve the current pending block to act as the gas ceiling
block, err := s.b.BlockByNumber(ctx, rpc.PendingBlockNumber)
if err != nil {
- return nil, err
+ return 0, err
}
- hi = block.GasLimit().Uint64()
+ hi = block.GasLimit()
}
cap = hi
// Create a helper to check if a gas allowance results in an executable transaction
executable := func(gas uint64) bool {
- (*big.Int)(&args.Gas).SetUint64(gas)
+ args.Gas = hexutil.Uint64(gas)
+
_, _, failed, err := s.doCall(ctx, args, rpc.PendingBlockNumber, vm.Config{})
if err != nil || failed {
return false
@@ -692,17 +692,17 @@ func (s *PublicBlockChainAPI) EstimateGas(ctx context.Context, args CallArgs) (*
// Reject the transaction as invalid if it still fails at the highest allowance
if hi == cap {
if !executable(hi) {
- return nil, fmt.Errorf("gas required exceeds allowance or always failing transaction")
+ return 0, fmt.Errorf("gas required exceeds allowance or always failing transaction")
}
}
- return (*hexutil.Big)(new(big.Int).SetUint64(hi)), nil
+ return hexutil.Uint64(hi), nil
}
// ExecutionResult groups all structured logs emitted by the EVM
// while replaying a transaction in debug mode as well as transaction
// execution status, the amount of gas used and the return value
type ExecutionResult struct {
- Gas *big.Int `json:"gas"`
+ Gas uint64 `json:"gas"`
Failed bool `json:"failed"`
ReturnValue string `json:"returnValue"`
StructLogs []StructLogRes `json:"structLogs"`
@@ -778,8 +778,8 @@ func (s *PublicBlockChainAPI) rpcOutputBlock(b *types.Block, inclTx bool, fullTx
"totalDifficulty": (*hexutil.Big)(s.b.GetTd(b.Hash())),
"extraData": hexutil.Bytes(head.Extra),
"size": hexutil.Uint64(uint64(b.Size().Int64())),
- "gasLimit": (*hexutil.Big)(head.GasLimit),
- "gasUsed": (*hexutil.Big)(head.GasUsed),
+ "gasLimit": hexutil.Uint64(head.GasLimit),
+ "gasUsed": hexutil.Uint64(head.GasUsed),
"timestamp": (*hexutil.Big)(head.Time),
"transactionsRoot": head.TxHash,
"receiptsRoot": head.ReceiptHash,
@@ -822,7 +822,7 @@ type RPCTransaction struct {
BlockHash common.Hash `json:"blockHash"`
BlockNumber *hexutil.Big `json:"blockNumber"`
From common.Address `json:"from"`
- Gas *hexutil.Big `json:"gas"`
+ Gas hexutil.Uint64 `json:"gas"`
GasPrice *hexutil.Big `json:"gasPrice"`
Hash common.Hash `json:"hash"`
Input hexutil.Bytes `json:"input"`
@@ -847,7 +847,7 @@ func newRPCTransaction(tx *types.Transaction, blockHash common.Hash, blockNumber
result := &RPCTransaction{
From: from,
- Gas: (*hexutil.Big)(tx.Gas()),
+ Gas: hexutil.Uint64(tx.Gas()),
GasPrice: (*hexutil.Big)(tx.GasPrice()),
Hash: tx.Hash(),
Input: hexutil.Bytes(tx.Data()),
@@ -1024,8 +1024,8 @@ func (s *PublicTransactionPoolAPI) GetTransactionReceipt(hash common.Hash) (map[
"transactionIndex": hexutil.Uint64(index),
"from": from,
"to": tx.To(),
- "gasUsed": (*hexutil.Big)(receipt.GasUsed),
- "cumulativeGasUsed": (*hexutil.Big)(receipt.CumulativeGasUsed),
+ "gasUsed": hexutil.Uint64(receipt.GasUsed),
+ "cumulativeGasUsed": hexutil.Uint64(receipt.CumulativeGasUsed),
"contractAddress": nil,
"logs": receipt.Logs,
"logsBloom": receipt.Bloom,
@@ -1068,7 +1068,7 @@ func (s *PublicTransactionPoolAPI) sign(addr common.Address, tx *types.Transacti
type SendTxArgs struct {
From common.Address `json:"from"`
To *common.Address `json:"to"`
- Gas *hexutil.Big `json:"gas"`
+ Gas *hexutil.Uint64 `json:"gas"`
GasPrice *hexutil.Big `json:"gasPrice"`
Value *hexutil.Big `json:"value"`
Nonce *hexutil.Uint64 `json:"nonce"`
@@ -1081,7 +1081,8 @@ type SendTxArgs struct {
// setDefaults is a helper function that fills in default values for unspecified tx fields.
func (args *SendTxArgs) setDefaults(ctx context.Context, b Backend) error {
if args.Gas == nil {
- args.Gas = (*hexutil.Big)(big.NewInt(defaultGas))
+ args.Gas = new(hexutil.Uint64)
+ *(*uint64)(args.Gas) = 90000
}
if args.GasPrice == nil {
price, err := b.SuggestPrice(ctx)
@@ -1114,9 +1115,9 @@ func (args *SendTxArgs) toTransaction() *types.Transaction {
input = *args.Input
}
if args.To == nil {
- return types.NewContractCreation(uint64(*args.Nonce), (*big.Int)(args.Value), (*big.Int)(args.Gas), (*big.Int)(args.GasPrice), input)
+ return types.NewContractCreation(uint64(*args.Nonce), (*big.Int)(args.Value), uint64(*args.Gas), (*big.Int)(args.GasPrice), input)
}
- return types.NewTransaction(uint64(*args.Nonce), *args.To, (*big.Int)(args.Value), (*big.Int)(args.Gas), (*big.Int)(args.GasPrice), input)
+ return types.NewTransaction(uint64(*args.Nonce), *args.To, (*big.Int)(args.Value), uint64(*args.Gas), (*big.Int)(args.GasPrice), input)
}
// submitTransaction is a helper function that submits tx to txPool and logs a message.
@@ -1264,7 +1265,7 @@ func (s *PublicTransactionPoolAPI) PendingTransactions() ([]*RPCTransaction, err
// Resend accepts an existing transaction and a new gas price and limit. It will remove
// the given transaction from the pool and reinsert it with the new gas price and limit.
-func (s *PublicTransactionPoolAPI) Resend(ctx context.Context, sendArgs SendTxArgs, gasPrice, gasLimit *hexutil.Big) (common.Hash, error) {
+func (s *PublicTransactionPoolAPI) Resend(ctx context.Context, sendArgs SendTxArgs, gasPrice *hexutil.Big, gasLimit *hexutil.Uint64) (common.Hash, error) {
if sendArgs.Nonce == nil {
return common.Hash{}, fmt.Errorf("missing transaction nonce in transaction spec")
}
diff --git a/internal/ethapi/backend.go b/internal/ethapi/backend.go
index 368fa4872..af95d7906 100644
--- a/internal/ethapi/backend.go
+++ b/internal/ethapi/backend.go
@@ -37,13 +37,14 @@ import (
// Backend interface provides the common API services (that are provided by
// both full and light clients) with access to necessary functions.
type Backend interface {
- // general Ethereum API
+ // General Ethereum API
Downloader() *downloader.Downloader
ProtocolVersion() int
SuggestPrice(ctx context.Context) (*big.Int, error)
ChainDb() ethdb.Database
EventMux() *event.TypeMux
AccountManager() *accounts.Manager
+
// BlockChain API
SetHead(number uint64)
HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error)
diff --git a/internal/ethapi/tracer.go b/internal/ethapi/tracer.go
deleted file mode 100644
index 71cafc6e9..000000000
--- a/internal/ethapi/tracer.go
+++ /dev/null
@@ -1,364 +0,0 @@
-// Copyright 2016 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 ethapi
-
-import (
- "encoding/json"
- "errors"
- "fmt"
- "math/big"
- "time"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/common/hexutil"
- "github.com/ethereum/go-ethereum/core/vm"
- "github.com/robertkrimen/otto"
-)
-
-// fakeBig is used to provide an interface to Javascript for 'big.NewInt'
-type fakeBig struct{}
-
-// NewInt creates a new big.Int with the specified int64 value.
-func (fb *fakeBig) NewInt(x int64) *big.Int {
- return big.NewInt(x)
-}
-
-// OpCodeWrapper provides a JavaScript-friendly wrapper around OpCode, to convince Otto to treat it
-// as an object, instead of a number.
-type opCodeWrapper struct {
- op vm.OpCode
-}
-
-// toNumber returns the ID of this opcode as an integer
-func (ocw *opCodeWrapper) toNumber() int {
- return int(ocw.op)
-}
-
-// toString returns the string representation of the opcode
-func (ocw *opCodeWrapper) toString() string {
- return ocw.op.String()
-}
-
-// isPush returns true if the op is a Push
-func (ocw *opCodeWrapper) isPush() bool {
- return ocw.op.IsPush()
-}
-
-// MarshalJSON serializes the opcode as JSON
-func (ocw *opCodeWrapper) MarshalJSON() ([]byte, error) {
- return json.Marshal(ocw.op.String())
-}
-
-// toValue returns an otto.Value for the opCodeWrapper
-func (ocw *opCodeWrapper) toValue(vm *otto.Otto) otto.Value {
- value, _ := vm.ToValue(ocw)
- obj := value.Object()
- obj.Set("toNumber", ocw.toNumber)
- obj.Set("toString", ocw.toString)
- obj.Set("isPush", ocw.isPush)
- return value
-}
-
-// memoryWrapper provides a JS wrapper around vm.Memory
-type memoryWrapper struct {
- memory *vm.Memory
-}
-
-// slice returns the requested range of memory as a byte slice
-func (mw *memoryWrapper) slice(begin, end int64) []byte {
- return mw.memory.Get(begin, end-begin)
-}
-
-// getUint returns the 32 bytes at the specified address interpreted
-// as an unsigned integer
-func (mw *memoryWrapper) getUint(addr int64) *big.Int {
- ret := big.NewInt(0)
- ret.SetBytes(mw.memory.GetPtr(addr, 32))
- return ret
-}
-
-// toValue returns an otto.Value for the memoryWrapper
-func (mw *memoryWrapper) toValue(vm *otto.Otto) otto.Value {
- value, _ := vm.ToValue(mw)
- obj := value.Object()
- obj.Set("slice", mw.slice)
- obj.Set("getUint", mw.getUint)
- return value
-}
-
-// stackWrapper provides a JS wrapper around vm.Stack
-type stackWrapper struct {
- stack *vm.Stack
-}
-
-// peek returns the nth-from-the-top element of the stack.
-func (sw *stackWrapper) peek(idx int) *big.Int {
- return sw.stack.Data()[len(sw.stack.Data())-idx-1]
-}
-
-// length returns the length of the stack
-func (sw *stackWrapper) length() int {
- return len(sw.stack.Data())
-}
-
-// toValue returns an otto.Value for the stackWrapper
-func (sw *stackWrapper) toValue(vm *otto.Otto) otto.Value {
- value, _ := vm.ToValue(sw)
- obj := value.Object()
- obj.Set("peek", sw.peek)
- obj.Set("length", sw.length)
- return value
-}
-
-// dbWrapper provides a JS wrapper around vm.Database
-type dbWrapper struct {
- db vm.StateDB
-}
-
-// getBalance retrieves an account's balance
-func (dw *dbWrapper) getBalance(addr []byte) *big.Int {
- return dw.db.GetBalance(common.BytesToAddress(addr))
-}
-
-// getNonce retrieves an account's nonce
-func (dw *dbWrapper) getNonce(addr []byte) uint64 {
- return dw.db.GetNonce(common.BytesToAddress(addr))
-}
-
-// getCode retrieves an account's code
-func (dw *dbWrapper) getCode(addr []byte) []byte {
- return dw.db.GetCode(common.BytesToAddress(addr))
-}
-
-// getState retrieves an account's state data for the given hash
-func (dw *dbWrapper) getState(addr []byte, hash common.Hash) common.Hash {
- return dw.db.GetState(common.BytesToAddress(addr), hash)
-}
-
-// exists returns true iff the account exists
-func (dw *dbWrapper) exists(addr []byte) bool {
- return dw.db.Exist(common.BytesToAddress(addr))
-}
-
-// toValue returns an otto.Value for the dbWrapper
-func (dw *dbWrapper) toValue(vm *otto.Otto) otto.Value {
- value, _ := vm.ToValue(dw)
- obj := value.Object()
- obj.Set("getBalance", dw.getBalance)
- obj.Set("getNonce", dw.getNonce)
- obj.Set("getCode", dw.getCode)
- obj.Set("getState", dw.getState)
- obj.Set("exists", dw.exists)
- return value
-}
-
-// contractWrapper provides a JS wrapper around vm.Contract
-type contractWrapper struct {
- contract *vm.Contract
-}
-
-func (c *contractWrapper) caller() common.Address {
- return c.contract.Caller()
-}
-
-func (c *contractWrapper) address() common.Address {
- return c.contract.Address()
-}
-
-func (c *contractWrapper) value() *big.Int {
- return c.contract.Value()
-}
-
-func (c *contractWrapper) calldata() []byte {
- return c.contract.Input
-}
-
-func (c *contractWrapper) toValue(vm *otto.Otto) otto.Value {
- value, _ := vm.ToValue(c)
- obj := value.Object()
- obj.Set("caller", c.caller)
- obj.Set("address", c.address)
- obj.Set("value", c.value)
- obj.Set("calldata", c.calldata)
- return value
-}
-
-// JavascriptTracer provides an implementation of Tracer that evaluates a
-// Javascript function for each VM execution step.
-type JavascriptTracer struct {
- vm *otto.Otto // Javascript VM instance
- traceobj *otto.Object // User-supplied object to call
- op *opCodeWrapper // Wrapper around the VM opcode
- log map[string]interface{} // (Reusable) map for the `log` arg to `step`
- logvalue otto.Value // JS view of `log`
- memory *memoryWrapper // Wrapper around the VM memory
- stack *stackWrapper // Wrapper around the VM stack
- db *dbWrapper // Wrapper around the VM environment
- dbvalue otto.Value // JS view of `db`
- contract *contractWrapper // Wrapper around the contract object
- err error // Error, if one has occurred
- result interface{} // Final result to return to the user
-}
-
-// NewJavascriptTracer instantiates a new JavascriptTracer instance.
-// code specifies a Javascript snippet, which must evaluate to an expression
-// returning an object with 'step' and 'result' functions.
-func NewJavascriptTracer(code string) (*JavascriptTracer, error) {
- vm := otto.New()
- vm.Interrupt = make(chan func(), 1)
-
- // Set up builtins for this environment
- vm.Set("big", &fakeBig{})
- vm.Set("toHex", hexutil.Encode)
-
- jstracer, err := vm.Object("(" + code + ")")
- if err != nil {
- return nil, err
- }
- // Check the required functions exist
- step, err := jstracer.Get("step")
- if err != nil {
- return nil, err
- }
- if !step.IsFunction() {
- return nil, fmt.Errorf("Trace object must expose a function step()")
- }
-
- result, err := jstracer.Get("result")
- if err != nil {
- return nil, err
- }
- if !result.IsFunction() {
- return nil, fmt.Errorf("Trace object must expose a function result()")
- }
- // Create the persistent log object
- var (
- op = new(opCodeWrapper)
- mem = new(memoryWrapper)
- stack = new(stackWrapper)
- db = new(dbWrapper)
- contract = new(contractWrapper)
- )
- log := map[string]interface{}{
- "op": op.toValue(vm),
- "memory": mem.toValue(vm),
- "stack": stack.toValue(vm),
- "contract": contract.toValue(vm),
- }
- logvalue, _ := vm.ToValue(log)
-
- return &JavascriptTracer{
- vm: vm,
- traceobj: jstracer,
- op: op,
- log: log,
- logvalue: logvalue,
- memory: mem,
- stack: stack,
- db: db,
- dbvalue: db.toValue(vm),
- contract: contract,
- err: nil,
- }, nil
-}
-
-// Stop terminates execution of any JavaScript
-func (jst *JavascriptTracer) Stop(err error) {
- jst.vm.Interrupt <- func() {
- panic(err)
- }
-}
-
-// callSafely executes a method on a JS object, catching any panics and
-// returning them as error objects.
-func (jst *JavascriptTracer) callSafely(method string, argumentList ...interface{}) (ret interface{}, err error) {
- defer func() {
- if caught := recover(); caught != nil {
- switch caught := caught.(type) {
- case error:
- err = caught
- case string:
- err = errors.New(caught)
- case fmt.Stringer:
- err = errors.New(caught.String())
- default:
- panic(caught)
- }
- }
- }()
-
- value, err := jst.traceobj.Call(method, argumentList...)
- ret, _ = value.Export()
- return ret, err
-}
-
-func wrapError(context string, err error) error {
- var message string
- switch err := err.(type) {
- case *otto.Error:
- message = err.String()
- default:
- message = err.Error()
- }
- return fmt.Errorf("%v in server-side tracer function '%v'", message, context)
-}
-
-// CaptureState implements the Tracer interface to trace a single step of VM execution
-func (jst *JavascriptTracer) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, memory *vm.Memory, stack *vm.Stack, contract *vm.Contract, depth int, err error) error {
- if jst.err == nil {
- jst.op.op = op
- jst.memory.memory = memory
- jst.stack.stack = stack
- jst.db.db = env.StateDB
- jst.contract.contract = contract
-
- jst.log["pc"] = pc
- jst.log["gas"] = gas
- jst.log["cost"] = cost
- jst.log["depth"] = depth
- jst.log["account"] = contract.Address()
-
- delete(jst.log, "error")
- if err != nil {
- jst.log["error"] = err
- }
- _, err := jst.callSafely("step", jst.logvalue, jst.dbvalue)
- if err != nil {
- jst.err = wrapError("step", err)
- }
- }
- return nil
-}
-
-// CaptureEnd is called after the call finishes
-func (jst *JavascriptTracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
- //TODO! @Arachnid please figure out of there's anything we can use this method for
- return nil
-}
-
-// GetResult calls the Javascript 'result' function and returns its value, or any accumulated error
-func (jst *JavascriptTracer) GetResult() (result interface{}, err error) {
- if jst.err != nil {
- return nil, jst.err
- }
-
- result, err = jst.callSafely("result")
- if err != nil {
- err = wrapError("result", err)
- }
- return
-}
diff --git a/internal/ethapi/tracer_test.go b/internal/ethapi/tracer_test.go
deleted file mode 100644
index 0ef450ce3..000000000
--- a/internal/ethapi/tracer_test.go
+++ /dev/null
@@ -1,147 +0,0 @@
-// Copyright 2016 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 ethapi
-
-import (
- "errors"
- "math/big"
- "reflect"
- "testing"
- "time"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/core/vm"
- "github.com/ethereum/go-ethereum/params"
-)
-
-type account struct{}
-
-func (account) SubBalance(amount *big.Int) {}
-func (account) AddBalance(amount *big.Int) {}
-func (account) SetAddress(common.Address) {}
-func (account) Value() *big.Int { return nil }
-func (account) SetBalance(*big.Int) {}
-func (account) SetNonce(uint64) {}
-func (account) Balance() *big.Int { return nil }
-func (account) Address() common.Address { return common.Address{} }
-func (account) ReturnGas(*big.Int) {}
-func (account) SetCode(common.Hash, []byte) {}
-func (account) ForEachStorage(cb func(key, value common.Hash) bool) {}
-
-func runTrace(tracer *JavascriptTracer) (interface{}, error) {
- env := vm.NewEVM(vm.Context{}, nil, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
-
- contract := vm.NewContract(account{}, account{}, big.NewInt(0), 10000)
- contract.Code = []byte{byte(vm.PUSH1), 0x1, byte(vm.PUSH1), 0x1, 0x0}
-
- _, err := env.Interpreter().Run(contract, []byte{})
- if err != nil {
- return nil, err
- }
-
- return tracer.GetResult()
-}
-
-func TestTracing(t *testing.T) {
- tracer, err := NewJavascriptTracer("{count: 0, step: function() { this.count += 1; }, result: function() { return this.count; }}")
- if err != nil {
- t.Fatal(err)
- }
-
- ret, err := runTrace(tracer)
- if err != nil {
- t.Fatal(err)
- }
-
- value, ok := ret.(float64)
- if !ok {
- t.Errorf("Expected return value to be float64, was %T", ret)
- }
- if value != 3 {
- t.Errorf("Expected return value to be 3, got %v", value)
- }
-}
-
-func TestStack(t *testing.T) {
- tracer, err := NewJavascriptTracer("{depths: [], step: function(log) { this.depths.push(log.stack.length()); }, result: function() { return this.depths; }}")
- if err != nil {
- t.Fatal(err)
- }
-
- ret, err := runTrace(tracer)
- if err != nil {
- t.Fatal(err)
- }
-
- expected := []int{0, 1, 2}
- if !reflect.DeepEqual(ret, expected) {
- t.Errorf("Expected return value to be %#v, got %#v", expected, ret)
- }
-}
-
-func TestOpcodes(t *testing.T) {
- tracer, err := NewJavascriptTracer("{opcodes: [], step: function(log) { this.opcodes.push(log.op.toString()); }, result: function() { return this.opcodes; }}")
- if err != nil {
- t.Fatal(err)
- }
-
- ret, err := runTrace(tracer)
- if err != nil {
- t.Fatal(err)
- }
-
- expected := []string{"PUSH1", "PUSH1", "STOP"}
- if !reflect.DeepEqual(ret, expected) {
- t.Errorf("Expected return value to be %#v, got %#v", expected, ret)
- }
-}
-
-func TestHalt(t *testing.T) {
- timeout := errors.New("stahp")
- tracer, err := NewJavascriptTracer("{step: function() { while(1); }, result: function() { return null; }}")
- if err != nil {
- t.Fatal(err)
- }
-
- go func() {
- time.Sleep(1 * time.Second)
- tracer.Stop(timeout)
- }()
-
- if _, err = runTrace(tracer); err.Error() != "stahp in server-side tracer function 'step'" {
- t.Errorf("Expected timeout error, got %v", err)
- }
-}
-
-func TestHaltBetweenSteps(t *testing.T) {
- tracer, err := NewJavascriptTracer("{step: function() {}, result: function() { return null; }}")
- if err != nil {
- t.Fatal(err)
- }
-
- env := vm.NewEVM(vm.Context{}, nil, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
- contract := vm.NewContract(&account{}, &account{}, big.NewInt(0), 0)
-
- tracer.CaptureState(env, 0, 0, 0, 0, nil, nil, contract, 0, nil)
- timeout := errors.New("stahp")
- tracer.Stop(timeout)
- tracer.CaptureState(env, 0, 0, 0, 0, nil, nil, contract, 0, nil)
-
- if _, err := tracer.GetResult(); err.Error() != "stahp in server-side tracer function 'step'" {
- t.Errorf("Expected timeout error, got %v", err)
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 18:59:44 +0800