92 lines
1.8 KiB
Go
92 lines
1.8 KiB
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.
|
|
|
|
package main
|
|
|
|
import (
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"go/ast"
|
|
"go/build"
|
|
"go/parser"
|
|
"go/scanner"
|
|
"go/token"
|
|
|
|
"golang.org/x/mobile/bind"
|
|
"golang.org/x/tools/go/loader"
|
|
)
|
|
|
|
func genPkg(pkg *build.Package) {
|
|
if len(pkg.CgoFiles) > 0 {
|
|
errorf("gobind: cannot use cgo-dependent package as service definition: %s", pkg.CgoFiles[0])
|
|
return
|
|
}
|
|
|
|
files := parseFiles(pkg.Dir, pkg.GoFiles)
|
|
if len(files) == 0 {
|
|
return // some error has been reported
|
|
}
|
|
|
|
conf := loader.Config{
|
|
SourceImports: true,
|
|
Fset: fset,
|
|
}
|
|
conf.TypeChecker.Error = func(err error) {
|
|
errorf("%v", err)
|
|
}
|
|
conf.CreateFromFiles(pkg.ImportPath, files...)
|
|
program, err := conf.Load()
|
|
if err != nil {
|
|
errorf("%v", err)
|
|
return
|
|
}
|
|
p := program.Created[0].Pkg
|
|
|
|
switch *lang {
|
|
case "java":
|
|
err = bind.GenJava(os.Stdout, fset, p)
|
|
case "go":
|
|
err = bind.GenGo(os.Stdout, fset, p)
|
|
default:
|
|
errorf("unknown target language: %q", *lang)
|
|
}
|
|
|
|
if err != nil {
|
|
if list, _ := err.(bind.ErrorList); len(list) > 0 {
|
|
for _, err := range list {
|
|
errorf("%v", err)
|
|
}
|
|
} else {
|
|
errorf("%v", err)
|
|
}
|
|
}
|
|
}
|
|
|
|
var fset = token.NewFileSet()
|
|
|
|
func parseFiles(dir string, filenames []string) []*ast.File {
|
|
var files []*ast.File
|
|
hasErr := false
|
|
for _, filename := range filenames {
|
|
path := filepath.Join(dir, filename)
|
|
file, err := parser.ParseFile(fset, path, nil, parser.AllErrors)
|
|
if err != nil {
|
|
hasErr = true
|
|
if list, _ := err.(scanner.ErrorList); len(list) > 0 {
|
|
for _, err := range list {
|
|
errorf("%v", err)
|
|
}
|
|
} else {
|
|
errorf("%v", err)
|
|
}
|
|
}
|
|
files = append(files, file)
|
|
}
|
|
if hasErr {
|
|
return nil
|
|
}
|
|
return files
|
|
}
|