binary

Documentation

Overview

The binary package handles reading and writing of wasm binary files https://webassembly.github.io/spec/core/binary/index.html

Index

• Constants
• Variables
• func ReadByte(reader io.Reader) (byte, error)
• func ReadInstruction(reader io.Reader) (instruction.Instruction, error)
• func ReadLebU128(reader io.Reader) (uint32, error)
• func ReadOpCode(reader io.Reader) (opcode.Opcode, error)
• func ReadUInt16(reader io.Reader) (uint16, error)
• func ReadUInt32(reader io.Reader) (uint32, error)
• type Code
  • func ReadCode(reader io.Reader) (*Code, error)
• type CodeSection
  • func ReadCodeSection(size uint32, reader io.Reader) (*CodeSection, error)
• type Component
• type Document
  • func Read(reader io.Reader) (*Document, error)
• type FunctionSection
  • func ReadFunctionSection(size uint32, reader io.Reader) (*FunctionSection, error)
• type FunctionType
  • func ReadType(reader io.Reader) (*FunctionType, error)
• type Local
  • func ReadLocal(reader io.Reader) (Local, error)
• type Module
  • func ReadModule(reader io.Reader) (*Module, error)
• type Preamble
  • func ReadPreamble(reader io.Reader) (*Preamble, error)
• type Root
• type Section
  • func ReadSection(reader io.Reader) (Section, error)
• type SectionID
• type TypeSection
  • func ReadTypeSection(size uint32, reader io.Reader) (*TypeSection, error)
• type ValueType
  • func ReadValueType(reader io.Reader) (ValueType, error)
  • func ReadValueTypeVector(reader io.Reader) ([]ValueType, error)

Constants

const ComponentVersion uint16 = 0x0d

const ModuleVersion uint16 = 0x01

Variables

var Magic = []byte{0x00, 0x61, 0x73, 0x6d}

Functions

func ReadByte

func ReadByte(reader io.Reader) (byte, error)

func ReadInstruction

func ReadInstruction(reader io.Reader) (instruction.Instruction, error)

func ReadLebU128

func ReadLebU128(reader io.Reader) (uint32, error)

func ReadOpCode

func ReadOpCode(reader io.Reader) (opcode.Opcode, error)

func ReadUInt16

func ReadUInt16(reader io.Reader) (uint16, error)

func ReadUInt32

func ReadUInt32(reader io.Reader) (uint32, error)

Types

type Code

type Code struct {
	Size       uint32
	Locals     []Local
	Expression []instruction.Instruction
}

func ReadCode

func ReadCode(reader io.Reader) (*Code, error)

type CodeSection

type CodeSection struct {
	ID    SectionID
	Size  uint32
	Codes []*Code
}

func ReadCodeSection

func ReadCodeSection(size uint32, reader io.Reader) (*CodeSection, error)

type Component

type Component struct{}

type Document

type Document struct {
	Preamble *Preamble
	Root     Root
}

func Read

func Read(reader io.Reader) (*Document, error)

type FunctionSection

type FunctionSection struct {
	ID    SectionID
	Size  uint32
	Types []uint32
}

func ReadFunctionSection

func ReadFunctionSection(size uint32, reader io.Reader) (*FunctionSection, error)

type FunctionType

type FunctionType struct {
	Parameters []ValueType
	Results    []ValueType
}

func ReadType

func ReadType(reader io.Reader) (*FunctionType, error)

type Local

type Local struct {
	ValueTypes []ValueType
}

func ReadLocal

func ReadLocal(reader io.Reader) (Local, error)

type Module

type Module struct {
	Sections []Section
}

func ReadModule

func ReadModule(reader io.Reader) (*Module, error)

type Preamble

type Preamble struct {
	Magic   [4]byte
	Version uint16
	Layer   uint16
}

func ReadPreamble

func ReadPreamble(reader io.Reader) (*Preamble, error)

type Root

type Root interface {
	// contains filtered or unexported methods
}

type Section

type Section interface {
	// contains filtered or unexported methods
}

func ReadSection

func ReadSection(reader io.Reader) (Section, error)

type SectionID

type SectionID uint8

const (
	CustomSectionID   SectionID = 0
	TypeSectionID     SectionID = 1
	FunctionSectionID SectionID = 3
	CodeSectionID     SectionID = 10
)

type TypeSection

type TypeSection struct {
	ID    SectionID
	Size  uint32
	Types []*FunctionType
}

func ReadTypeSection

func ReadTypeSection(size uint32, reader io.Reader) (*TypeSection, error)

type ValueType

type ValueType byte

const F32 ValueType = 0x7d

const F64 ValueType = 0x7c

const I32 ValueType = 0x7f

const I64 ValueType = 0x7e

func ReadValueType

func ReadValueType(reader io.Reader) (ValueType, error)

func ReadValueTypeVector

func ReadValueTypeVector(reader io.Reader) ([]ValueType, error)