decorator

type AstMap struct {
	Nodes   map[dst.Node]ast.Node       // Mapping from dst to ast Nodes
	Objects map[*dst.Object]*ast.Object // Mapping from dst to ast Objects
	Scopes  map[*dst.Scope]*ast.Scope   // Mapping from dst to ast Scopes
}

type Decorator struct {
	Map                            // Mapping between ast and dst Nodes, Objects and Scopes
	Filenames map[*dst.File]string // Source file names
	Fset      *token.FileSet       // The ast FileSet containing ast decoration info for the files

	// If a Resolver is provided, it is used to resolve remote identifiers from *ast.Ident and
	// *ast.SelectorExpr nodes. Usually a remote identifier is a SelectorExpr qualified identifier,
	// but in the case of dot-imports they can be simply Ident nodes. During decoration, remote
	// identifiers are replaced with *dst.Ident with Path set to the path of imported package.
	Resolver resolver.DecoratorResolver
	// Local package path - required if Resolver is set.
	Path string
	// By default local idents are left with an empty Path, so they stay local if the local package
	// is renamed. Setting ResolveLocalPath to true prevents this, so all idents will have the
	// package path added.
	ResolveLocalPath bool
}

type DstMap struct {
	Nodes   map[ast.Node]dst.Node       // Mapping from ast to dst Nodes
	Objects map[*ast.Object]*dst.Object // Mapping from ast to dst Objects
	Scopes  map[*ast.Scope]*dst.Scope   // Mapping from ast to dst Scopes
}

type FileRestorer struct {
	*Restorer
	Alias map[string]string // Map of package path -> package alias for imports
	Name  string            // The name of the restored file in the FileSet. Can usually be left empty.
	// contains filtered or unexported fields
}

type Map struct {
	Ast AstMap
	Dst DstMap
}

type Package struct {
	*packages.Package
	Dir       string
	Decorator *Decorator
	Imports   map[string]*Package
	Syntax    []*dst.File
}

type Restorer struct {
	Map
	Fset   *token.FileSet // Fset is the *token.FileSet in use. Set this to use a pre-existing FileSet.
	Extras bool           // Resore Objects, Scopes etc. Not needed for printing the resultant AST. If set to true, Objects and Scopes must be carefully managed to avoid duplicate nodes.

	// If a Resolver is provided, the names of all imported packages are resolved, and the imports
	// block is updated. All remote identifiers are updated (sometimes this involves changing
	// SelectorExpr.X.Name, or even swapping between Ident and SelectorExpr). To force specific
	// import alias names, use the FileRestorer.Alias map.
	Resolver resolver.RestorerResolver
	// Local package path - required if Resolver is set.
	Path string
}