Documentation
¶
Overview ¶
Package binding contains import and export utilities.
Index ¶
- Constants
- func BindImports(mod *compile.Module, reso ImportResolver) (err error)
- func BindLibraryImports(lib *compile.Library, reso LibraryImportResolver) (err error)
- func EntryFunc(mod compile.Module, name string) (funcIndex uint32, err error)
- func IsEntryFuncType(sig wa.FuncType) bool
- func IsStartFuncType(sig wa.FuncType) bool
- type ImportResolver
- type LibraryImportResolver
Constants ¶
const ( VectorIndexLastImport = -5 VectorIndexMemoryAddr = -4 VectorIndexCurrentMemory = -3 VectorIndexGrowMemory = -2 VectorIndexTrapHandler = -1 )
Well-known indexes of the import vector. Import function addresses precede the current memory size.
Variables ¶
This section is empty.
Functions ¶
func BindImports ¶
func BindImports(mod *compile.Module, reso ImportResolver) (err error)
func BindLibraryImports ¶ added in v0.21.0
func BindLibraryImports(lib *compile.Library, reso LibraryImportResolver) (err error)
func EntryFunc ¶ added in v0.23.0
EntryFunc looks up an export function which is suitable as an entry point. Its result type must be void or i32, and it must not take any parameters.
func IsEntryFuncType ¶ added in v0.23.0
IsEntryFuncType checks if the signature is suitable for an entry function.
func IsStartFuncType ¶ added in v0.23.0
IsStartFuncType checks if the signature is suitable for a start function.
Types ¶
type ImportResolver ¶
type ImportResolver interface {
ResolveFunc(module, field string, sig wa.FuncType) (funcIndex uint32, err error)
ResolveGlobal(module, field string, t wa.Type) (init uint64, err error)
}
ImportResolver maps symbols to library function indexes and constant values.
ResolveFunc returns a non-negative library function index.
ResolveGlobal returns a bit pattern the interpretation of which depends on the scalar type.
type LibraryImportResolver ¶ added in v0.21.0
type LibraryImportResolver interface {
ResolveFunc(module, field string, sig wa.FuncType) (vectorIndex int, err error)
}
LibraryImportResolver maps symbols to vector indexes.
ResolveFunc returns a negative vector index. The vector is addressed from the end. VectorIndexLastImport is the largest valid index which ResolveFunc can return.
Source Files