package vm

import "github.com/CityOfZion/neo-go/pkg/vm/stack"

type stackInfo func(op stack.Instruction, ctx *stack.Context, istack *stack.Invocation, rstack *stack.RandomAccess) (Vmstate, error)

var opFunc = map[stack.Instruction]stackInfo{
	stack.HASH256:     HASH256,
	stack.HASH160:     HASH160,
	stack.SHA256:      SHA256,
	stack.SHA1:        SHA1,
	stack.XOR:         Xor,
	stack.OR:          Or,
	stack.AND:         And,
	stack.INVERT:      Invert,
	stack.MIN:         Min,
	stack.MAX:         Max,
	stack.WITHIN:      Within,
	stack.NUMEQUAL:    NumEqual,
	stack.NUMNOTEQUAL: NumNotEqual,
	stack.BOOLAND:     BoolAnd,
	stack.BOOLOR:      BoolOr,
	stack.LT:          Lt,
	stack.LTE:         Lte,
	stack.GT:          Gt,
	stack.GTE:         Gte,
	stack.SHR:         Shr,
	stack.SHL:         Shl,
	stack.INC:         Inc,
	stack.DEC:         Dec,
	stack.DIV:         Div,
	stack.MOD:         Mod,
	stack.NZ:          Nz,
	stack.MUL:         Mul,
	stack.ABS:         Abs,
	stack.NOT:         Not,
	stack.SIGN:        Sign,
	stack.NEGATE:      Negate,
	stack.ADD:         Add,
	stack.SUB:         Sub,
	stack.PUSHBYTES1:  PushNBytes,
	stack.PUSHBYTES75: PushNBytes,
	stack.RET:         RET,
	stack.EQUAL:       EQUAL,
	stack.THROWIFNOT:  THROWIFNOT,
	stack.THROW:       THROW,
}

func init() {
	for i := int(stack.PUSHBYTES1); i <= int(stack.PUSHBYTES75); i++ {
		opFunc[stack.Instruction(i)] = PushNBytes
	}
}