58 lines
981 B
Go
58 lines
981 B
Go
package vm
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import (
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"monkey/internal/code"
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"monkey/internal/object"
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)
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type frame struct {
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ip uint16
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basePointer int
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cl *object.Closure
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}
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func newFrame(cl *object.Closure, basePointer int) frame {
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return frame{
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cl: cl,
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basePointer: basePointer,
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}
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}
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func (f *frame) Closure() *object.Closure {
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return f.cl
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}
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func (f *frame) GetFree(idx uint8) object.Object {
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return f.cl.Free[idx]
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}
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func (f *frame) SetFree(idx uint8, obj object.Object) {
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f.cl.Free[idx] = obj
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}
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func (f *frame) SetIP(ip uint16) {
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f.ip = ip
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}
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func (f frame) PeekNextOp() code.Opcode {
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return code.Opcode(f.cl.Fn.Instructions[f.ip])
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}
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func (f *frame) ReadNextOp() code.Opcode {
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op := code.Opcode(f.cl.Fn.Instructions[f.ip])
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f.ip++
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return op
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}
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func (f *frame) ReadUint8() uint8 {
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n := code.ReadUint8(f.cl.Fn.Instructions[f.ip:])
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f.ip++
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return n
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}
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func (f *frame) ReadUint16() uint16 {
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n := code.ReadUint16(f.cl.Fn.Instructions[f.ip:])
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f.ip += 2
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return n
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}
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