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cmd/compile: minor cleanup to import loading

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Briefly document what the importfoo functions do.

Get rid of importsym's unused result parameter.

Get rid of the redundant calls to importsym(s, OTYPE)
after we've already called pkgtype(s).

Passes toolstash -cmp.

Change-Id: I4c057358144044f5356e4dec68907ec85f1fe806
Reviewed-on: https://go-review.googlesource.com/21498
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Matthew Dempsky 2016-04-04 15:41:56 -07:00
parent 86e7a5b92a
commit 0c71e293b5
3 changed files with 7 additions and 14 deletions
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1
src/cmd/compile/internal/gc/bimport.go
View File

@ -290,7 +290,6 @@ func (p *importer) typ() *Type {
// parser.go:hidden_pkgtype
t = pkgtype(tsym)
importsym(tsym, OTYPE)
p.typList = append(p.typList, t)
// read underlying type

13
src/cmd/compile/internal/gc/export.go
View File

@ -445,10 +445,8 @@ func dumpexport() {
}
}
// import
// return the sym for ss, which should match lexical
func importsym(s *Sym, op Op) *Sym {
// importsym declares symbol s as an imported object representable by op.
func importsym(s *Sym, op Op) {
if s.Def != nil && s.Def.Op != op {
pkgstr := fmt.Sprintf("during import %q", importpkg.Path)
redeclare(s, pkgstr)
@ -462,11 +460,10 @@ func importsym(s *Sym, op Op) *Sym {
s.Flags |= SymPackage // package scope
}
}
return s
}
// return the type pkg.name, forward declaring if needed
// pkgtype returns the named type declared by symbol s.
// If no such type has been declared yet, a forward declaration is returned.
func pkgtype(s *Sym) *Type {
importsym(s, OTYPE)
if s.Def == nil || s.Def.Op != OTYPE {
@ -506,6 +503,7 @@ func importimport(s *Sym, path string) {
}
}
// importconst declares symbol s as an imported constant with type t and value n.
func importconst(s *Sym, t *Type, n *Node) {
importsym(s, OLITERAL)
n = convlit(n, t)
@ -533,6 +531,7 @@ func importconst(s *Sym, t *Type, n *Node) {
}
}
// importvar declares symbol s as an imported variable with type t.
func importvar(s *Sym, t *Type) {
importsym(s, ONAME)
if s.Def != nil && s.Def.Op == ONAME {

7
src/cmd/compile/internal/gc/parser.go
View File

@ -2931,12 +2931,7 @@ func (p *parser) hidden_pkgtype() *Type {
defer p.trace("hidden_pkgtype")()
}
s1 := p.hidden_pkg_importsym()
ss := pkgtype(s1)
importsym(s1, OTYPE)
return ss
return pkgtype(p.hidden_pkg_importsym())
}
// ----------------------------------------------------------------------------