Package importer provides access to export data importers.
func Default() types.Importer
Default returns an Importer for the compiler that built the running binary.
If available, the result implements types.ImporterFrom.
func For(compiler string, lookup Lookup) types.Importer
For calls ForCompiler with a new FileSet.
Deprecated: use ForCompiler, which populates a FileSet
with the positions of objects created by the importer.
func ForCompiler(fset *token.FileSet, compiler string, lookup Lookup) types.Importer
ForCompiler returns an Importer for importing from installed packages
for the compilers "gc" and "gccgo", or for importing directly
from the source if the compiler argument is "source". In this
latter case, importing may fail under circumstances where the
exported API is not entirely defined in pure Go source code
(if the package API depends on cgo-defined entities, the type
checker won't have access to those).
If lookup is nil, the default package lookup mechanism for the
given compiler is used, and the resulting importer attempts
to resolve relative and absolute import paths to canonical
import path IDs before finding the imported file.
If lookup is non-nil, then the returned importer calls lookup
each time it needs to resolve an import path. In this mode
the importer can only be invoked with canonical import paths
(not relative or absolute ones); it is assumed that the translation
to canonical import paths is being done by the client of the
A Lookup function returns a reader to access package data for
a given import path, or an error if no matching package is found.
type Lookup func(path string) (io.ReadCloser, error)