module

Documentation

Index

• Constants
• func Error(text string) error
• func Errorf(format string, args ...any) error
• func WrapError(cause error, text string) error
• type ExternalKind
  • func (kind ExternalKind) String() (s string)
• type Global
• type Header
• type Import
• type ImportFunc
• type ImportIndex
• type Library
• type M
  • func (m *M) EvaluateGlobalInitializer(index int, value uint64) uint64
  • func (m *M) NumMemory() uint32
  • func (m *M) NumTable() uint32
• type ResizableLimits
• type SectionID
  • func (id SectionID) String() string

Constants

const (
	MagicNumber = uint32(0x6d736100)
	Version     = uint32(1)
)

const (
	MaxFunctions  = 32768
	MaxFuncParams = 255
	MaxTypes      = MaxFunctions
	MaxImports    = MaxFunctions
)

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

	NumSections
)

const (
	ExternalKindFunction = ExternalKind(iota)
	ExternalKindTable
	ExternalKindMemory
	ExternalKindGlobal
)

Functions

func Error

func Error(text string) error

func Errorf

func Errorf(format string, args ...any) error

func WrapError

func WrapError(cause error, text string) error

Types

type ExternalKind

type ExternalKind byte

func (ExternalKind) String

func (kind ExternalKind) String() (s string)

type Global

type Global struct {
	Type       wa.Type
	Mutable    bool
	InitImport int8 // -1 if InitConst is defined.
	InitConst  uint64
}

type Header

type Header struct {
	MagicNumber uint32
	Version     uint32
}

type Import

type Import struct {
	Module string
	Field  string
}

type ImportFunc

type ImportFunc struct {
	Import
	LibraryFunc uint32
}

type ImportIndex

type ImportIndex struct {
	Import
	VectorIndex int
}

type Library

type Library struct {
	Types       []wa.FuncType
	Funcs       []uint32
	ImportFuncs []ImportIndex
	Memory      bool
	ExportFuncs map[string]uint32
	CodeFuncs   [][]byte
}

type M

type M struct {
	Types         []wa.FuncType
	Funcs         []uint32
	ImportFuncs   []ImportFunc
	Table         bool
	TableLimit    ResizableLimits
	Memory        bool
	MemoryLimit   ResizableLimits
	Globals       []Global
	ImportGlobals []Import
	ExportFuncs   map[string]uint32
	StartIndex    uint32
	StartDefined  bool
	TableFuncs    []uint32
}

func (*M) EvaluateGlobalInitializer

func (m *M) EvaluateGlobalInitializer(index int, value uint64) uint64

func (*M) NumMemory

func (m *M) NumMemory() uint32

func (*M) NumTable

func (m *M) NumTable() uint32

type ResizableLimits

type ResizableLimits struct {
	Init int
	Max  int // -1 if unlimited (memory).
}

type SectionID

type SectionID byte

func (SectionID) String

func (id SectionID) String() string