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package runtime
import (
"github.com/dexon-foundation/dexon/core/vm"
"github.com/dexon-foundation/dexon/core/vm/sqlvm/common"
se "github.com/dexon-foundation/dexon/core/vm/sqlvm/errors"
)
// Run is runtime entrypoint.
func Run(stateDB vm.StateDB, ins []Instruction, registers []*Operand) (ret []byte, err error) {
for _, in := range ins {
for i := 0; i < len(in.Input); i++ {
if !in.Input[i].IsImmediate {
in.Input[i] = registers[in.Input[i].RegisterIndex]
}
}
opFunc := jumpTable[in.Op]
loadRegister(in.Input, registers)
errCode := opFunc(&common.Context{}, in.Input, registers, in.Output)
if errCode != nil {
err = se.Error{
Position: in.Position,
Code: errCode.(se.ErrorCode),
Category: se.ErrorCategoryRuntime,
}
return nil, err
}
}
// TODO: ret = ABIEncode(ins[len(ins)-1].Output)
return
}
func loadRegister(input, registers []*Operand) {
for i, operand := range input {
if operand != nil && !operand.IsImmediate {
input[i] = registers[operand.RegisterIndex]
}
}
}
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