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package vm
import (
"jinx/pkg/lang/vm/mem"
"jinx/pkg/lang/vm/stack"
"jinx/pkg/lang/vm/value"
)
func (vm *VM) Mem() mem.Mem {
return vm.memory
}
func (vm *VM) Stack() stack.Stack {
return vm.stack
}
func (vm *VM) GetThis() (value.Value, error) {
err := vm.execGetEnv(0)
if err != nil {
return value.Value{}, err
}
// Take it back!
this, err := vm.popAndDrop()
if err != nil {
return value.Value{}, err
}
return this, nil
}
func (vm *VM) AddGlobal(name string, v value.Value) error {
globalPtr, err := vm.memory.Allocate(mem.CellKindGlobal)
if err != nil {
return err
}
globalCell := value.GlobalCell(v)
if err := vm.memory.Set(globalPtr, globalCell); err != nil {
return err
}
vm.globals[name] = globalPtr
return nil
}
func (vm *VM) GetGlobal(name string) (value.Value, bool, error) {
ptr, ok := vm.globals[name]
if !ok {
return value.Value{}, false, nil
}
cell, err := vm.getMemCell(ptr, mem.CellKindGlobal, false)
if err != nil {
return value.Value{}, false, err
}
v := cell.(value.GlobalCell).Get()
return v, true, nil
}
func (vm *VM) Write(message string) error {
return vm.output.Write(message)
}
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