jaekwon

import java.util.*;
import java.lang.*;
import java.io.*;

class Human {
  public Human() {}
  public void walk() {
    this.moveFeet();
  }
  public void moveFeet() {

jaekwon

// Compare to https://gist.github.com/jaekwon/8025b9f3a482b3219a21

package main

import "fmt"

type Human struct{}

func (h Human) walk()     { h.moveFeet() }
func (h Human) moveFeet() { fmt.Println("Human.walkFeet") }

jaekwon

39015	default
5353	gopherjs/js
4667	runtime
847		errors
1926	sync/atomic
22451	sync
4968	io
18733	unicode
6980	unicode/utf8

jaekwon

Keybase proof

I hereby claim:

• I am jaekwon on github.
• I am jaekwon (https://keybase.io/jaekwon) on keybase.
• I have a public key whose fingerprint is F3E6 04B9 02C6 3CC5 EA2E 4FB6 BBCF 2AC7 7899 206D

To claim this, I am signing this object:

jaekwon

package main

import (
	"sort"
	"testing"
)

// SortString sorts a string
func SortString(w string) string {
	wBytes := uint8Slice([]uint8(w))

jaekwon

2-of-3 Escrow Example with Electrum

This is gmaxwell's 2-of-2 escrow example, adapted to Electrum and to a lesser extent, GFM.

The Scenario

Archey wants to pay Bertha 0.001 BTC for a Twitter Platinum invite, but prevent Bertha from cheating him. Archey selects Iceland to act as

jaekwon

{"time":"2016-10-16T20:57:31.752Z","msg":[1,{"height":47595,"round":0,"step":"RoundStepNewHeight"}]}
{"time":"2016-10-16T20:57:32.780Z","msg":[3,{"duration":999834609,"height":47595,"round":0,"step":1}]}
{"time":"2016-10-16T20:57:32.780Z","msg":[1,{"height":47595,"round":0,"step":"RoundStepPropose"}]}
{"time":"2016-10-16T20:57:33.174Z","msg":[2,{"msg":[20,{"ValidatorIndex":1,"Vote":{"height":47595,"round":0,"type":1,"block_hash":"D3645CB2EF4FB03DCC7FB77C5CEE969765EF78BF","block_parts_header":{"total":13,"hash":"C28C08047DABB2E345B09BC77F0384453E3BED7C"},"signature":"E3875E3286F0581BA303C357FCEA9AF20255669A0B83C6318D11D220F6FDC9743F41BF1007B6C9C008C9F44DB1B7F8BE404F672C57DEC5BD26E5175A6F27230C"}}],"peer_key":"AC86D51269961BAAC1FCB58709E2499CD14CC4845DEF847D58A4BF73C578BA9B"}]}
{"time":"2016-10-16T20:57:33.183Z","msg":[2,{"msg":[20,{"ValidatorIndex":2,"Vote":{"height":47595,"round":0,"type":1,"block_hash":"D3645CB2EF4FB03DCC7FB77C5CEE969765EF78BF","block_parts_header":{"total":13,"hash":"C28C08047DABB2E345B09BC

jaekwon

type Plugin interface {
    // Name of this plugin, should be short.
    Name() string
  
    // Run a transaction from ABCI DeliverTx
    RunTx(store KVStore, ctx CallContext, txBytes []byte) (res abci.Result)
  
    // Other ABCI message handlers
    SetOption(store KVStore, key string, value string) (log string)
    InitChain(store KVStore, vals []*abci.Validator)

jaekwon

// A Basecoin user account
type Account struct {
	PubKey   crypto.PubKey
	Sequence int
	Balance  Coins
}

type Coin struct {
	Denom  string // e.g. "BTC", "ATOM"
	Amount int64

jaekwon

* state/execution.go
 - // ApplyBlock executes the block, then commits and updates the mempool atomically
   becomes...
   // ApplyBlock executes the block, updates state w/ ABCI responses, then commits and updates the mempool atomically, then saves state
 - execBlockOnProxyApp should return relevant ABCI responses
 - Between s.ExecBlock and s.CommitStateUpdateMempool, add a function to save ABI responses, 's.SaveABCIResponses'. Make the ABCI responses a simple field of state.State. Make it a pointer, and have State.Copy() just copy the pointer -- ABCI responses are not mutable.
 - Move call to 's.SetBlockAndValidators' to between s.SaveABCIResponses and s.CommitStateUpdateMempool.  Also move calls to 'updateValidators' and 'IncrementAccum' into s.SetBlockAndValidators.  Change s.SetBlockAndValidators to include ABCI responses as arguments.
 - After s.CommitStateUpdateMempool, save the state.
* In state/state.go
 - Change 'updated at end of ExecBlock' to 'updated at end of SetBlockAndValidators'