diff options
Diffstat (limited to 'src/cmd/compile/internal/types2/package.go')
| -rw-r--r-- | src/cmd/compile/internal/types2/package.go | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/src/cmd/compile/internal/types2/package.go b/src/cmd/compile/internal/types2/package.go index 31b1e71787..8044e7e6a7 100644 --- a/src/cmd/compile/internal/types2/package.go +++ b/src/cmd/compile/internal/types2/package.go @@ -13,8 +13,9 @@ type Package struct { path string name string scope *Scope - complete bool 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 } @@ -22,8 +23,14 @@ type Package struct { // 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} + return &Package{path: path, name: name, scope: scope, height: height} } // Path returns the package path. @@ -32,13 +39,22 @@ 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). -func (pkg *Package) Scope() *Scope { return pkg.scope } +// 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. |