eszip

package module

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Versions in this module

v0

v0.2.2

Mar 5, 2026

Changes in this version

type EszipUnion

+ func (e *EszipUnion) LookupModule(specifier string) ModuleEntry

type EszipV1

+ func (e *EszipV1) LookupModule(specifier string) ModuleEntry

type EszipV2

+ func (e *EszipV2) LookupModule(specifier string) ModuleEntry

v0.2.1

Feb 26, 2026

v0.2.0

Feb 26, 2026

Changes in this version

type EszipUnion

+ func (e *EszipUnion) NpmSnapshot() *NpmResolutionSnapshot

type EszipV2

+ func (e *EszipV2) NpmSnapshot() *NpmResolutionSnapshot

v0.1.0

Feb 9, 2026

Changes in this version

+ const LatestVersion

+ var MagicV2 = [8]byte

+ var MagicV2_1 = [8]byte

+ var MagicV2_2 = [8]byte

+ var MagicV2_3 = [8]byte

+ func HasMagic(buffer []byte) bool

+ type ChecksumType uint8

+ const ChecksumNone

+ const ChecksumSha256

+ const ChecksumXxh3

+ func ChecksumFromU8(b uint8) (ChecksumType, bool)

+ func (c ChecksumType) DigestSize() uint8

+ func (c ChecksumType) Hash(data []byte) []byte

+ func (c ChecksumType) Verify(data, hash []byte) bool

+ type Eszip interface

+ GetImportMap func(specifier string) *Module

+ GetModule func(specifier string) *Module

+ Specifiers func() []string

+ TakeNpmSnapshot func() *NpmResolutionSnapshot

+ type EszipUnion struct

+ func Parse(ctx context.Context, r io.Reader) (*EszipUnion, func(context.Context) error, error)

+ func ParseBytes(ctx context.Context, data []byte) (*EszipUnion, error)

+ func ParseSync(ctx context.Context, r io.Reader) (*EszipUnion, error)

+ func (e *EszipUnion) GetImportMap(specifier string) *Module

+ func (e *EszipUnion) GetModule(specifier string) *Module

+ func (e *EszipUnion) IsV1() bool

+ func (e *EszipUnion) IsV2() bool

+ func (e *EszipUnion) Specifiers() []string

+ func (e *EszipUnion) TakeNpmSnapshot() *NpmResolutionSnapshot

+ func (e *EszipUnion) V1() *EszipV1

+ func (e *EszipUnion) V2() *EszipV2

+ type EszipV1 struct

+ Modules map[string]json.RawMessage

+ Version uint32

+ func ParseV1(data []byte) (*EszipV1, error)

+ func (e *EszipV1) GetImportMap(specifier string) *Module

+ func (e *EszipV1) GetModule(specifier string) *Module

+ func (e *EszipV1) IntoBytes() ([]byte, error)

+ func (e *EszipV1) Iterate() []struct{ ... }

+ func (e *EszipV1) Specifiers() []string

+ type EszipV2 struct

+ func NewEszipV2() *EszipV2

+ func NewV2() *EszipV2

+ func ParseV2(ctx context.Context, r io.Reader) (*EszipV2, func(context.Context) error, error)

+ func ParseV2Sync(ctx context.Context, r io.Reader) (*EszipV2, error)

+ func (e *EszipV2) AddImportMap(kind ModuleKind, specifier string, source []byte)

+ func (e *EszipV2) AddModule(specifier string, kind ModuleKind, source, sourceMap []byte)

+ func (e *EszipV2) AddOpaqueData(specifier string, data []byte)

+ func (e *EszipV2) AddRedirect(specifier, target string)

+ func (e *EszipV2) GetImportMap(specifier string) *Module

+ func (e *EszipV2) GetModule(specifier string) *Module

+ func (e *EszipV2) IntoBytes() ([]byte, error)

+ func (e *EszipV2) Iterate() []struct{ ... }

+ func (e *EszipV2) SetChecksum(checksum ChecksumType)

+ func (e *EszipV2) Specifiers() []string

+ func (e *EszipV2) TakeNpmSnapshot() *NpmResolutionSnapshot

+ type EszipV2Module interface

+ type EszipVersion int

+ const VersionV2

+ const VersionV2_1

+ const VersionV2_2

+ const VersionV2_3

+ func VersionFromMagic(magic []byte) (EszipVersion, bool)

+ func (v EszipVersion) SupportsNpm() bool

+ func (v EszipVersion) SupportsOptions() bool

+ func (v EszipVersion) ToMagic() [8]byte

+ type HeaderFrameKind uint8

+ const HeaderFrameModule

+ const HeaderFrameNpmSpecifier

+ const HeaderFrameRedirect

+ type Module struct

+ Kind ModuleKind

+ Specifier string

+ func (m *Module) Source(ctx context.Context) ([]byte, error)

+ func (m *Module) SourceMap(ctx context.Context) ([]byte, error)

+ func (m *Module) TakeSource(ctx context.Context) ([]byte, error)

+ func (m *Module) TakeSourceMap(ctx context.Context) ([]byte, error)

+ type ModuleData struct

+ Kind ModuleKind

+ Source *SourceSlot

+ SourceMap *SourceSlot

+ type ModuleEntry struct

+ Module EszipV2Module

+ Specifier string

+ type ModuleKind uint8

+ const ModuleKindJavaScript

+ const ModuleKindJson

+ const ModuleKindJsonc

+ const ModuleKindOpaqueData

+ const ModuleKindWasm

+ func (k ModuleKind) String() string

+ type ModuleMap struct

+ func NewModuleMap() *ModuleMap

+ func (m *ModuleMap) Get(specifier string) (EszipV2Module, bool)

+ func (m *ModuleMap) GetMut(specifier string) EszipV2Module

+ func (m *ModuleMap) Insert(specifier string, module EszipV2Module)

+ func (m *ModuleMap) InsertFront(specifier string, module EszipV2Module)

+ func (m *ModuleMap) Iterate() <-chan ModuleEntry

+ func (m *ModuleMap) Keys() []string

+ func (m *ModuleMap) Len() int

+ func (m *ModuleMap) Remove(specifier string) (EszipV2Module, bool)

+ type ModuleRedirect struct

+ Target string

+ type NpmPackage struct

+ Dependencies map[string]*NpmPackageID

+ ID *NpmPackageID

+ type NpmPackageID struct

+ Name string

+ Version string

+ func ParseNpmPackageID(s string) (*NpmPackageID, error)

+ func (id *NpmPackageID) String() string

+ type NpmPackageIndex struct

+ Index uint32

+ type NpmResolutionSnapshot struct

+ Packages []*NpmPackage

+ RootPackages map[string]*NpmPackageID

+ type NpmSpecifierEntry struct

+ PackageID uint32

+ type Options struct

+ Checksum ChecksumType

+ ChecksumSize uint8

+ func DefaultOptionsForVersion(version EszipVersion) Options

+ func (o Options) GetChecksumSize() uint8

+ type ParseError struct

+ Message string

+ Offset int

+ Type ParseErrorType

+ func (e *ParseError) Error() string

+ type ParseErrorType int

+ const ErrIO

+ const ErrInvalidV1Json

+ const ErrInvalidV1Version

+ const ErrInvalidV2

+ const ErrInvalidV22OptionsHeader

+ const ErrInvalidV22OptionsHeaderHash

+ const ErrInvalidV2EntryKind

+ const ErrInvalidV2Header

+ const ErrInvalidV2HeaderHash

+ const ErrInvalidV2ModuleKind

+ const ErrInvalidV2NpmPackage

+ const ErrInvalidV2NpmPackageOffset

+ const ErrInvalidV2NpmPackageReq

+ const ErrInvalidV2NpmSnapshotHash

+ const ErrInvalidV2SourceHash

+ const ErrInvalidV2SourceOffset

+ const ErrInvalidV2Specifier

+ type Section struct

+ func (s *Section) Content() []byte

+ func (s *Section) ContentLen() int

+ func (s *Section) IntoContent() []byte

+ func (s *Section) IsChecksumValid() bool

+ func (s *Section) TotalLen() int

+ type SourceSlot struct

+ func NewEmptySourceSlot() *SourceSlot

+ func NewPendingSourceSlot(offset, length uint32) *SourceSlot

+ func NewReadySourceSlot(data []byte) *SourceSlot

+ func (s *SourceSlot) Get(ctx context.Context) ([]byte, error)

+ func (s *SourceSlot) Length() uint32

+ func (s *SourceSlot) Offset() uint32

+ func (s *SourceSlot) SetReady(data []byte)

+ func (s *SourceSlot) State() SourceSlotState

+ func (s *SourceSlot) Take(ctx context.Context) ([]byte, error)

+ type SourceSlotState int

+ const SourceSlotPending

+ const SourceSlotReady

+ const SourceSlotTaken

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