1 files changed, 234 insertions, 0 deletions
diff --git a/ethereal/debugger.go b/ethereal/debugger.go
new file mode 100644
index 000000000..416155835
--- /dev/null
+++ b/ethereal/debugger.go
@@ -0,0 +1,234 @@
+package main
+
+import (
+	"fmt"
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethutil"
+	"github.com/go-qml/qml"
+	"math/big"
+	"strings"
+)
+
+type DebuggerWindow struct {
+	win    *qml.Window
+	engine *qml.Engine
+	lib    *UiLib
+	Db     *Debugger
+}
+
+func NewDebuggerWindow(lib *UiLib) *DebuggerWindow {
+	engine := qml.NewEngine()
+	component, err := engine.LoadFile(lib.AssetPath("debugger/debugger.qml"))
+	if err != nil {
+		fmt.Println(err)
+
+		return nil
+	}
+
+	win := component.CreateWindow(nil)
+	db := &Debugger{win, make(chan bool), make(chan bool), true, false, true}
+
+	return &DebuggerWindow{engine: engine, win: win, lib: lib, Db: db}
+}
+
+func (self *DebuggerWindow) Show() {
+	context := self.engine.Context()
+	context.SetVar("dbg", self)
+
+	go func() {
+		self.win.Show()
+		self.win.Wait()
+	}()
+}
+
+func (self *DebuggerWindow) SetCode(code string) {
+	self.win.Set("codeText", code)
+}
+
+func (self *DebuggerWindow) SetData(data string) {
+	self.win.Set("dataText", data)
+}
+func (self *DebuggerWindow) SetAsm(data string) {
+	dis := ethchain.Disassemble(ethutil.Hex2Bytes(data))
+	for _, str := range dis {
+		self.win.Root().Call("setAsm", str)
+	}
+}
+
+func (self *DebuggerWindow) Debug(valueStr, gasStr, gasPriceStr, scriptStr, dataStr string) {
+	if !self.Db.done {
+		self.Db.Q <- true
+	}
+	self.Db.breakOnInstr = self.win.Root().ObjectByName("breakEachLine").Bool("checked")
+
+	defer func() {
+		if r := recover(); r != nil {
+			self.Logf("compile FAULT: %v", r)
+		}
+	}()
+
+	data := ethutil.StringToByteFunc(dataStr, func(s string) (ret []byte) {
+		slice := strings.Split(dataStr, "\n")
+		for _, dataItem := range slice {
+			d := ethutil.FormatData(dataItem)
+			ret = append(ret, d...)
+		}
+		return
+	})
+
+	var err error
+	script := ethutil.StringToByteFunc(scriptStr, func(s string) (ret []byte) {
+		ret, err = ethutil.Compile(s)
+		return
+	})
+
+	if err != nil {
+		self.Logln(err)
+
+		return
+	}
+
+	dis := ethchain.Disassemble(script)
+	self.win.Root().Call("clearAsm")
+	self.win.Root().Call("clearLog")
+
+	for _, str := range dis {
+		self.win.Root().Call("setAsm", str)
+	}
+
+	var (
+		gas      = ethutil.Big(gasStr)
+		gasPrice = ethutil.Big(gasPriceStr)
+		value    = ethutil.Big(valueStr)
+		// Contract addr as test address
+		keyPair  = self.lib.eth.KeyManager().KeyPair()
+		callerTx = ethchain.NewContractCreationTx(ethutil.Big(valueStr), gas, gasPrice, script)
+	)
+	callerTx.Sign(keyPair.PrivateKey)
+
+	state := self.lib.eth.BlockChain().CurrentBlock.State()
+	account := self.lib.eth.StateManager().TransState().GetAccount(keyPair.Address())
+	contract := ethchain.MakeContract(callerTx, state)
+	contract.Amount = value
+	callerClosure := ethchain.NewClosure(account, contract, script, state, gas, gasPrice)
+
+	block := self.lib.eth.BlockChain().CurrentBlock
+	vm := ethchain.NewVm(state, self.lib.eth.StateManager(), ethchain.RuntimeVars{
+		Block:       block,
+		Origin:      account.Address(),
+		BlockNumber: block.Number,
+		PrevHash:    block.PrevHash,
+		Coinbase:    block.Coinbase,
+		Time:        block.Time,
+		Diff:        block.Difficulty,
+		Value:       ethutil.Big(valueStr),
+	})
+	vm.Verbose = true
+
+	self.Db.done = false
+	self.Logf("callsize %d", len(script))
+	go func() {
+		ret, g, err := callerClosure.Call(vm, data, self.Db.halting)
+		tot := new(big.Int).Mul(g, gasPrice)
+		self.Logf("gas usage %v total price = %v (%v)", g, tot, ethutil.CurrencyToString(tot))
+		if err != nil {
+			self.Logln("exited with errors:", err)
+		} else {
+			if len(ret) > 0 {
+				self.Logf("exited: % x", ret)
+			} else {
+				self.Logf("exited: nil")
+			}
+		}
+
+		state.Reset()
+
+		if !self.Db.interrupt {
+			self.Db.done = true
+		} else {
+			self.Db.interrupt = false
+		}
+	}()
+}
+
+func (self *DebuggerWindow) Logf(format string, v ...interface{}) {
+	self.win.Root().Call("setLog", fmt.Sprintf(format, v...))
+}
+
+func (self *DebuggerWindow) Logln(v ...interface{}) {
+	str := fmt.Sprintln(v...)
+	self.Logf("%s", str[:len(str)-1])
+}
+
+func (self *DebuggerWindow) Next() {
+	self.Db.Next()
+}
+
+type Debugger struct {
+	win             *qml.Window
+	N               chan bool
+	Q               chan bool
+	done, interrupt bool
+	breakOnInstr    bool
+}
+
+type storeVal struct {
+	Key, Value string
+}
+
+func (d *Debugger) halting(pc int, op ethchain.OpCode, mem *ethchain.Memory, stack *ethchain.Stack, stateObject *ethchain.StateObject) bool {
+	d.win.Root().Call("setInstruction", pc)
+	d.win.Root().Call("clearMem")
+	d.win.Root().Call("clearStack")
+	d.win.Root().Call("clearStorage")
+
+	addr := 0
+	for i := 0; i+32 <= mem.Len(); i += 32 {
+		d.win.Root().Call("setMem", memAddr{fmt.Sprintf("%03d", addr), fmt.Sprintf("% x", mem.Data()[i:i+32])})
+		addr++
+	}
+
+	for _, val := range stack.Data() {
+		d.win.Root().Call("setStack", val.String())
+	}
+
+	stateObject.State().EachStorage(func(key string, node *ethutil.Value) {
+		d.win.Root().Call("setStorage", storeVal{fmt.Sprintf("% x", key), fmt.Sprintf("% x", node.Str())})
+	})
+
+	if d.breakOnInstr {
+	out:
+		for {
+			select {
+			case <-d.N:
+				break out
+			case <-d.Q:
+				d.interrupt = true
+				d.clearBuffers()
+
+				return false
+			}
+		}
+	}
+
+	return true
+}
+
+func (d *Debugger) clearBuffers() {
+out:
+	// drain
+	for {
+		select {
+		case <-d.N:
+		case <-d.Q:
+		default:
+			break out
+		}
+	}
+}
+
+func (d *Debugger) Next() {
+	if !d.done {
+		d.N <- true
+	}
+}