golang package 代码
文件路径：/src/cmd/compile/internal/types2/package.go
/ Copyright 2013 The Go Authors. All rights reserved.
/ Use of this source code is governed by a BSD-style
/ license that can be found in the LICENSE file.
package types2
import (
"fmt"
)
/ A Package describes a Go package.
type Package struct {
path string
name string
scope *Scope
imports []*Package
height int
complete bool
fake bool / scope lookup errors are silently dropped if package is fake (internal use only)
cgo bool / uses of this package will be rewritten into uses of declarations from _cgo_gotypes.go
}
/ NewPackage returns a new Package for the given package path and name.
/ The package is not complete and contains no explicit imports.
func NewPackage(path, name string) *Package {
return NewPackageHeight(path, name, 0)
}
/ NewPackageHeight is like NewPackage, but allows specifying the
/ package's height.
func NewPackageHeight(path, name string, height int) *Package {
scope := NewScope(Universe, nopos, nopos, fmt.Sprintf("package %q", path))
return &Package{path: path, name: name, scope: scope, height: height}
}
/ Path returns the package path.
func (pkg *Package) Path() string { return pkg.path }
/ Name returns the package name.
func (pkg *Package) Name() string { return pkg.name }
/ Height returns the package height.
func (pkg *Package) Height() int { return pkg.height }
/ SetName sets the package name.
func (pkg *Package) SetName(name string) { pkg.name = name }
/ Scope returns the (complete or incomplete) package scope
/ holding the objects declared at package level (TypeNames,
/ Consts, Vars, and Funcs).
/ For a nil pkg receiver, Scope returns the Universe scope.
func (pkg *Package) Scope() *Scope {
if pkg != nil {
return pkg.scope
}
return Universe
}
/ A package is complete if its scope contains (at least) all
/ exported objects; otherwise it is incomplete.
func (pkg *Package) Complete() bool { return pkg.complete }
/ MarkComplete marks a package as complete.
func (pkg *Package) MarkComplete() { pkg.complete = true }
/ Imports returns the list of packages directly imported by
/ pkg; the list is in source order.
/
/ If pkg was loaded from export data, Imports includes packages that
/ provide package-level objects referenced by pkg. This may be more or
/ less than the set of packages directly imported by pkg's source code.
func (pkg *Package) Imports() []*Package { return pkg.imports }
/ SetImports sets the list of explicitly imported packages to list.
/ It is the caller's responsibility to make sure list elements are unique.
func (pkg *Package) SetImports(list []*Package) { pkg.imports = list }
func (pkg *Package) String() string {
return fmt.Sprintf("package %s (%q)", pkg.name, pkg.path)
}