vm

package

v0.14.0 Latest Latest Go to latest Published: Aug 19, 2023 License: Apache-2.0 Imports: 20 Imported by: 4

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Repository

github.com/risor-io/risor

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Documentation ¶

Index ¶

Constants
func Run(ctx context.Context, main *compiler.Code, options ...Option) (object.Object, error)
type Option
type VirtualMachine
- func New(main *compiler.Code, options ...Option) *VirtualMachine

Constants ¶

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const (
	MaxArgs       = 255
	MaxFrameDepth = 1024
	MaxStackDepth = 1024
	StopSignal    = -1
	MB            = 1024 * 1024
)

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const DefaultFrameLocals = 8

Variables ¶

This section is empty.

Functions ¶

func Run ¶ added in v0.14.0

func Run(ctx context.Context, main *compiler.Code, options ...Option) (object.Object, error)

Run the given code in a new Virtual Machine and return the result.

Types ¶

type Option ¶

type Option func(*VirtualMachine)

Option is a configuration function for a Virtual Machine.

func WithGlobals ¶ added in v0.14.0

func WithGlobals(globals map[string]any) Option

WithGlobals provides global variables with the given names.

func WithImporter ¶

func WithImporter(importer importer.Importer) Option

WithImporter is used to supply an Importer to the Virtual Machine.

func WithInstructionOffset ¶

func WithInstructionOffset(offset int) Option

WithInstructionOffset sets the initial instruction offset.

func WithLimits ¶

func WithLimits(limits limits.Limits) Option

WithLimits sets the limits for the Virtual Machine.

type VirtualMachine ¶

type VirtualMachine struct {
	// contains filtered or unexported fields
}

func New ¶

func New(main *compiler.Code, options ...Option) *VirtualMachine

New creates a new Virtual Machine.

func (*VirtualMachine) Call ¶ added in v0.14.0

func (vm *VirtualMachine) Call(ctx context.Context, functionName string, args []object.Object) (object.Object, error)

Call a named function with the given arguments. The function is expected to be present in the global scope of the active code. If the function can't be found then an error is returned.

func (*VirtualMachine) Get ¶ added in v0.14.0

func (vm *VirtualMachine) Get(name string) (object.Object, error)

Get a global variable by name as a Risor Object. Returns an error if the variable can't be found.

func (*VirtualMachine) GlobalNames ¶ added in v0.14.0

func (vm *VirtualMachine) GlobalNames() []string

GlobalNames returns the names of all global variables in the active code.

func (*VirtualMachine) Run ¶

func (vm *VirtualMachine) Run(ctx context.Context) (err error)

func (*VirtualMachine) TOS ¶

func (vm *VirtualMachine) TOS() (object.Object, bool)

Source Files ¶

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