vm

package

v0.0.0-...-241e478 Latest Latest Go to latest Published: Feb 6, 2025 License: MIT Imports: 12 Imported by: 9

Details

Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/zyedidia/gpeg

Documentation ¶

Overview ¶

Package vm implements the GPeg virtual machine.

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Code ¶

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

Code is the representation of VM bytecode.

func Encode ¶

func Encode(insns isa.Program) Code

Encode transforms a program into VM bytecode.

func FromBytes ¶

func FromBytes(b []byte) (Code, error)

FromBytes loads a Code from a compressed and serialized object.

func FromJson ¶

func FromJson(b []byte) (Code, error)

FromJson returns a Code loaded from JSON form.

func (*Code) Exec ¶

func (vm *Code) Exec(r io.ReaderAt, memtbl memo.Table) (bool, int, *memo.Capture, []ParseError)

Exec executes the parsing program this virtual machine was created with. It returns whether the parse was a match, the last position in the subject string that was matched, and any captures that were created.

func (*Code) ExecInterval ¶

func (vm *Code) ExecInterval(r io.ReaderAt, memtbl memo.Table, intrvl *Interval) (bool, int, *memo.Capture, []ParseError)

func (*Code) Size ¶

func (c *Code) Size() int

Size returns the size of the encoded instructions.

func (*Code) ToBytes ¶

func (c *Code) ToBytes() ([]byte, error)

ToBytes serializes and compresses this Code.

func (*Code) ToJson ¶

func (c *Code) ToJson() ([]byte, error)

ToJson returns this Code serialized to JSON form.

type Interval ¶

type Interval struct {
	Low, High int
}

type ParseError ¶

type ParseError struct {
	Message string
	Pos     int
}

func (ParseError) Error ¶

func (e ParseError) Error() string

Source Files ¶

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