binary

Documentation

Overview

Package binary implements the WebAsembly binary encoding and decoding.

Index

• func DecodeBinary(data io.Reader) error
• type Decoder
  • func (d *Decoder) Avail() int64
  • func (d *Decoder) LEB128u32() (uint32, error)
  • func (d *Decoder) MSBu32() (uint32, error)
  • func (d *Decoder) Name() (string, error)
  • func (d *Decoder) PopInput()
  • func (d *Decoder) PushInput(in io.Reader, size int64)
  • func (d *Decoder) ReadByte() (byte, error)
• type NameID
  • func (id NameID) String() string
• type Section
• type SectionID
  • func (id SectionID) String() string

Functions

func DecodeBinary

func DecodeBinary(data io.Reader) error

DecodeBinary decodes module from binary encoding.

Types

type Decoder

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

Decoder implements primite functions for WASM binary format decoding.

func (*Decoder) Avail

func (d *Decoder) Avail() int64

Avail returns the number of bytes available in the current decoder input.

func (*Decoder) LEB128u32

func (d *Decoder) LEB128u32() (uint32, error)

LEB128u32 decodes a Little Endian Base 128 encoded uint32 number.

func (*Decoder) MSBu32

func (d *Decoder) MSBu32() (uint32, error)

MSBu32 decodes a most-significant bit (MSB) encoded uint32 number.

func (*Decoder) Name

func (d *Decoder) Name() (string, error)

Name decodes an UTF-8 name.

func (*Decoder) PopInput

func (d *Decoder) PopInput()

PopInput removes the topmost input from the decoder.

func (*Decoder) PushInput

func (d *Decoder) PushInput(in io.Reader, size int64)

PushInput pushes a new input to the decoder.

func (*Decoder) ReadByte

func (d *Decoder) ReadByte() (byte, error)

ReadByte reads one byte from the input.

type NameID

type NameID byte

NameID defines name section IDs.

const (
	ModuleName NameID = iota
	FunctionNames
	LocalNames
	LabelNames
	TypeNames
	TableNames
	MemoryNames
	GlobalNames
	ElemSegmentNames
	DataSegmentNames
)

Known name IDs.

func (NameID) String

func (id NameID) String() string

type Section

type Section struct {
	ID   SectionID
	Data []byte
}

Section implements a module section.

type SectionID

type SectionID byte

SectionID defines the ID of module sections.

const (
	SectionCustom SectionID = iota
	SectionType
	SectionImport
	SectionFunction
	SectionTable
	SectionMemory
	SectionGlobal
	SectionExport
	SectionStart
	SectionElement
	SectionCode
	SectionData
	SectionDataCount
)

Known section IDs.

func (SectionID) String

func (id SectionID) String() string