// This file implements export filtering of an AST.

package doc

import (
	"go/ast"
	"go/token"
)

// filterIdentList removes unexported names from list in place
// and returns the resulting list.
func filterIdentList(list []*ast.Ident) []*ast.Ident {
	j := 0
	for _, x := range list {
		if token.IsExported(x.Name) {
			list[j] = x
			j++
		}
	}
	return list[0:j]
}

	return filterPackage(pkg, exportFilter, true)
}

// ----------------------------------------------------------------------------
// General filtering

type Filter func(string) bool

func filterIdentList(list []*Ident, f Filter) []*Ident {
	j := 0
	for _, x := range list {
		if f(x.Name) {
			list[j] = x
			j++
		}
	}
	return list[0:j]
}