forked from TrueCloudLab/neoneo-go
38 lines
779 B
Go
38 lines
779 B
Go
package vm
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import (
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"fmt"
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"github.com/CityOfZion/neo-go/pkg/vm/stack"
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)
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// VM represents an instance of a Neo Virtual Machine
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type VM struct {
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InvocationStack stack.Invocation
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state vmstate
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}
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//NewVM loads in a script
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// uses the script to initiate a Context object
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// pushes the context to the invocation stack
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func NewVM(script []byte) *VM {
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ctx := stack.NewContext(script)
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v := &VM{
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state: NONE,
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}
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v.InvocationStack.Push(ctx)
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return v
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}
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// ExecuteOp will execute one opcode for a given context
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func (v *VM) ExecuteOp(op stack.Instruction, ctx *stack.Context) error {
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handleOp, ok := opFunc[op]
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if !ok {
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return fmt.Errorf("unknown opcode entered %v", op)
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}
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err := handleOp(ctx, &v.InvocationStack)
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if err != nil {
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return err
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}
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return nil
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}
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