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-rw-r--r--ethutil/asm.go193
-rw-r--r--ethutil/asm_test.go31
2 files changed, 0 insertions, 224 deletions
diff --git a/ethutil/asm.go b/ethutil/asm.go
deleted file mode 100644
index a547d3ac1..000000000
--- a/ethutil/asm.go
+++ /dev/null
@@ -1,193 +0,0 @@
-package ethutil
-
-import (
- _ "fmt"
- "math/big"
- _ "regexp"
-)
-
-// Op codes
-var OpCodes = map[string]byte{
- // 0x0 range - arithmetic ops
- "STOP": 0x00,
- "ADD": 0x01,
- "MUL": 0x02,
- "SUB": 0x03,
- "DIV": 0x04,
- "SDIV": 0x05,
- "MOD": 0x06,
- "SMOD": 0x07,
- "EXP": 0x08,
- "NEG": 0x09,
- "LT": 0x0a,
- "GT": 0x0b,
- "EQ": 0x0c,
- "NOT": 0x0d,
-
- // 0x10 range - bit ops
- "AND": 0x10,
- "OR": 0x11,
- "XOR": 0x12,
- "BYTE": 0x13,
-
- // 0x20 range - crypto
- "SHA3": 0x20,
-
- // 0x30 range - closure state
- "ADDRESS": 0x30,
- "BALANCE": 0x31,
- "ORIGIN": 0x32,
- "CALLER": 0x33,
- "CALLVALUE": 0x34,
- "CALLDATALOAD": 0x35,
- "CALLDATASIZE": 0x36,
- "GASPRICE": 0x38,
-
- // 0x40 range - block operations
- "PREVHASH": 0x40,
- "COINBASE": 0x41,
- "TIMESTAMP": 0x42,
- "NUMBER": 0x43,
- "DIFFICULTY": 0x44,
- "GASLIMIT": 0x45,
-
- // 0x50 range - 'storage' and execution
- "PUSH": 0x50,
-
- "PUSH20": 0x80,
-
- "POP": 0x51,
- "DUP": 0x52,
- "SWAP": 0x53,
- "MLOAD": 0x54,
- "MSTORE": 0x55,
- "MSTORE8": 0x56,
- "SLOAD": 0x57,
- "SSTORE": 0x58,
- "JUMP": 0x59,
- "JUMPI": 0x5a,
- "PC": 0x5b,
- "MSIZE": 0x5c,
-
- // 0x60 range - closures
- "CREATE": 0x60,
- "CALL": 0x61,
- "RETURN": 0x62,
-
- // 0x70 range - other
- "LOG": 0x70,
- "SUICIDE": 0x7f,
-}
-
-// Is op code
-//
-// Check whether the given string matches anything in
-// the OpCode list
-func IsOpCode(s string) bool {
- for key, _ := range OpCodes {
- if key == s {
- return true
- }
- }
- return false
-}
-
-// Compile instruction
-//
-// Attempts to compile and parse the given instruction in "s"
-// and returns the byte sequence
-func CompileInstr(s interface{}) ([]byte, error) {
- switch s.(type) {
- case string:
- str := s.(string)
- isOp := IsOpCode(str)
- if isOp {
- return []byte{OpCodes[str]}, nil
- }
-
- num := new(big.Int)
- _, success := num.SetString(str, 0)
- // Assume regular bytes during compilation
- if !success {
- num.SetBytes([]byte(str))
- } else {
- // tmp fix for 32 bytes
- n := BigToBytes(num, 256)
- return n, nil
- }
-
- return num.Bytes(), nil
- case int:
- num := BigToBytes(big.NewInt(int64(s.(int))), 256)
- return num, nil
- case []byte:
- return BigD(s.([]byte)).Bytes(), nil
- }
-
- return nil, nil
-}
-
-// Assemble
-//
-// Assembles the given instructions and returns EVM byte code
-func Assemble(instructions ...interface{}) (script []byte) {
- //script = make([]string, len(instructions))
-
- for _, val := range instructions {
- instr, _ := CompileInstr(val)
-
- //script[i] = string(instr)
- script = append(script, instr...)
- }
-
- return
-}
-
-// Pre process script
-//
-// Take data apart and attempt to find the "init" section and
-// "main" section. `main { } init { }`
-func PreProcess(data string) (mainInput, initInput string) {
- mainInput = getCodeSectionFor("main", data)
- if mainInput == "" {
- mainInput = data
- }
- initInput = getCodeSectionFor("init", data)
-
- return
-}
-
-// Very, very dumb parser. Heed no attention :-)
-func getCodeSectionFor(blockMatcher, input string) string {
- curCount := -1
- length := len(blockMatcher)
- matchfst := rune(blockMatcher[0])
- var currStr string
-
- for i, run := range input {
- // Find init
- if curCount == -1 && run == matchfst && input[i:i+length] == blockMatcher {
- curCount = 0
- } else if curCount > -1 {
- if run == '{' {
- curCount++
- if curCount == 1 {
- continue
- }
- } else if run == '}' {
- curCount--
- if curCount == 0 {
- // we are done
- curCount = -1
- break
- }
- }
-
- if curCount > 0 {
- currStr += string(run)
- }
- }
- }
-
- return currStr
-}
diff --git a/ethutil/asm_test.go b/ethutil/asm_test.go
deleted file mode 100644
index a9ad347dd..000000000
--- a/ethutil/asm_test.go
+++ /dev/null
@@ -1,31 +0,0 @@
-package ethutil
-
-import (
- "fmt"
- "testing"
-)
-
-func TestPreProcess(t *testing.T) {
- main, init := PreProcess(`
- init {
- // init
- if a > b {
- if {
- }
- }
- }
-
- main {
- // main
- if a > b {
- if c > d {
- }
- }
- }
- `)
-
- fmt.Println("main")
- fmt.Println(main)
- fmt.Println("init")
- fmt.Println(init)
-}