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go/cmd/godex/gccgo.go
Peter Collingbourne 02990bd494 go.tools/go/gccgoimporter: keep track of package and import priority
Clients such as compilers need this information in order
to correctly link against imported packages.

This also adds support for the condensed import data format
where the priority information is stored as a suffix of the
condensed import data, as well as support for archive files.

LGTM=gri
R=gri
CC=golang-codereviews, iant
https://golang.org/cl/78740043
2014-06-17 10:56:47 -07:00

41 lines
1021 B
Go

// Copyright 2014 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.
// This file implements access to gccgo-generated export data.
package main
import (
"code.google.com/p/go.tools/go/gccgoimporter"
"code.google.com/p/go.tools/go/types"
)
var (
initmap = make(map[*types.Package]gccgoimporter.InitData)
)
func init() {
incpaths := []string{"/"}
// importer for default gccgo
var inst gccgoimporter.GccgoInstallation
inst.InitFromDriver("gccgo")
register("gccgo", inst.GetImporter(incpaths, initmap))
}
// Print the extra gccgo compiler data for this package, if it exists.
func (p *printer) printGccgoExtra(pkg *types.Package) {
if initdata, ok := initmap[pkg]; ok {
p.printf("/*\npriority %d\n", initdata.Priority)
p.printDecl("init", len(initdata.Inits), func() {
for _, init := range initdata.Inits {
p.printf("%s %s %d\n", init.Name, init.InitFunc, init.Priority)
}
})
p.print("*/\n")
}
}